Marta Otero; A. Aller;Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE J. Cara; Antonio Morán; Antonio Morán
Harvested from ORCID Public Data FileAntonio Morán in OpenAIREColumn biodesulphurization of coal is at the experimental stage and is influenced by many variables including temperature, pH, particle size, concentration of iron in solution, among others. Idle time in the washing process and the concentration of dissolved iron in the purged leachate are two variables with a definite effect on the yield of the desulphurization system. In the laboratory, several trials were run with columns packed with coal for different idle times: 1, 2, 3, 5, 6 and 7 days, and for different concentrations of iron in the purged leachate: 500 to 4,000 mg/l. The optimal values for the two variables; that is, those allowing for the highest desulphurization yields, were idle times of 3 and 5 days, which give an elimination of 56% and 49% of pyritic sulphur, respectively, and 3,000 mg/l of iron concentration in the purged leachate, giving a decrease in pyritic sulphur in coal of 57%.
8 citations 8 popularity Average influence Top 10% impulse Average 
Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s002530000487&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu- Marta Otero; A. Aller;
Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE J. Cara; Antonio Morán; Antonio Morán
Harvested from ORCID Public Data FileAntonio Morán in OpenAIREColumn biodesulphurization of coal is at the experimental stage and is influenced by many variables including temperature, pH, particle size, concentration of iron in solution, among others. Idle time in the washing process and the concentration of dissolved iron in the purged leachate are two variables with a definite effect on the yield of the desulphurization system. In the laboratory, several trials were run with columns packed with coal for different idle times: 1, 2, 3, 5, 6 and 7 days, and for different concentrations of iron in the purged leachate: 500 to 4,000 mg/l. The optimal values for the two variables; that is, those allowing for the highest desulphurization yields, were idle times of 3 and 5 days, which give an elimination of 56% and 49% of pyritic sulphur, respectively, and 3,000 mg/l of iron concentration in the purged leachate, giving a decrease in pyritic sulphur in coal of 57%.
8 citations 8 popularity Average influence Top 10% impulse Average Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s002530000487&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Marta Otero;
Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Antonio Morán; Antonio Morán
Harvested from ORCID Public Data FileAntonio Morán in OpenAIRE A.I. García; Marta Elena Sánchez;A.I. García
Harvested from ORCID Public Data FileA.I. García in OpenAIREAbstract To combust coal together with a small percentage (<10%) of sewage sludge may be an option for the management of these wastes. Combustion of two different sewage sludge, one semianthracite coal and several sludges-coal blends (containing different dried mass% of each of the two sewage sludges) were studied by simultaneous TG/MS dynamic runs carried out at 5C min–1 in the temperature range 100–800C. No interactions have been observed between coal and sludge during the blends combustion. Neither the combustion process, neither the studied emissions have changed appreciably for the mass% of sludge in the blends considered in this work.
23 citations 23 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s10973-005-7367-3&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Marta Otero;
Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Antonio Morán; Antonio Morán
Harvested from ORCID Public Data FileAntonio Morán in OpenAIRE A.I. García; Marta Elena Sánchez;A.I. García
Harvested from ORCID Public Data FileA.I. García in OpenAIREAbstract To combust coal together with a small percentage (<10%) of sewage sludge may be an option for the management of these wastes. Combustion of two different sewage sludge, one semianthracite coal and several sludges-coal blends (containing different dried mass% of each of the two sewage sludges) were studied by simultaneous TG/MS dynamic runs carried out at 5C min–1 in the temperature range 100–800C. No interactions have been observed between coal and sludge during the blends combustion. Neither the combustion process, neither the studied emissions have changed appreciably for the mass% of sludge in the blends considered in this work.
23 citations 23 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s10973-005-7367-3&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Marta Otero;
Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Antonio Morán; Antonio Morán
Harvested from ORCID Public Data FileAntonio Morán in OpenAIRE María Victoria Gil; L.F. Calvo; +1 AuthorsMaría Victoria Gil
Harvested from ORCID Public Data FileMaría Victoria Gil in OpenAIRE Marta Otero; Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Antonio Morán; Antonio Morán
Harvested from ORCID Public Data FileAntonio Morán in OpenAIRE María Victoria Gil; L.F. Calvo; A.I. García;María Victoria Gil
Harvested from ORCID Public Data FileMaría Victoria Gil in OpenAIREThe kinetics of the combustion of coal, two different sewage sludge and their blends (containing different dried weight percentages of sewage sludge) was studied by simultaneous thermogravimetric analysis. Once the weight percentage of sludge in the blend was 10%, the effects on the combustion of coal were hardly noticeable in terms of weight loss. The Arrhenius activation energy corresponding to the co-combustion of the blends was evaluated by non-isothermal kinetic analysis. This showed that, though differences between coal and sewage sludge, the combustion of their blends kept kinetically alike to that of the coal. This work illustrates how thermogravimetric analysis may be used as an easy rapid tool to asses, not only mass loss, but also kinetics of the co-combustion of sewage sludge and coal blends.
156 citations 156 popularity Top 1% influence Top 1% impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.biortech.2007.12.011&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Marta Otero;
Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Antonio Morán; Antonio Morán
Harvested from ORCID Public Data FileAntonio Morán in OpenAIRE María Victoria Gil; L.F. Calvo; +1 AuthorsMaría Victoria Gil
Harvested from ORCID Public Data FileMaría Victoria Gil in OpenAIRE Marta Otero; Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Antonio Morán; Antonio Morán
Harvested from ORCID Public Data FileAntonio Morán in OpenAIRE María Victoria Gil; L.F. Calvo; A.I. García;María Victoria Gil
Harvested from ORCID Public Data FileMaría Victoria Gil in OpenAIREThe kinetics of the combustion of coal, two different sewage sludge and their blends (containing different dried weight percentages of sewage sludge) was studied by simultaneous thermogravimetric analysis. Once the weight percentage of sludge in the blend was 10%, the effects on the combustion of coal were hardly noticeable in terms of weight loss. The Arrhenius activation energy corresponding to the co-combustion of the blends was evaluated by non-isothermal kinetic analysis. This showed that, though differences between coal and sewage sludge, the combustion of their blends kept kinetically alike to that of the coal. This work illustrates how thermogravimetric analysis may be used as an easy rapid tool to asses, not only mass loss, but also kinetics of the co-combustion of sewage sludge and coal blends.
156 citations 156 popularity Top 1% influence Top 1% impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.biortech.2007.12.011&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Marta Otero; C. Dı́ez;
Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Antonio Morán; Antonio Morán
Harvested from ORCID Public Data FileAntonio Morán in OpenAIRE A.I. García; +1 AuthorsA.I. García
Harvested from ORCID Public Data FileA.I. García in OpenAIRE Marta Otero; C. Dı́ez;Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Antonio Morán; Antonio Morán
Harvested from ORCID Public Data FileAntonio Morán in OpenAIRE A.I. García; L.F. Calvo;A.I. García
Harvested from ORCID Public Data FileA.I. García in OpenAIRECombustion of sewage sludge may be a viable solution for its management in some cases and so is its co-combustion with coal. The aim of the present paper is to study the behavior of three different sludges during combustion and the modifications of combustion parameters that take place when sludges are mixed with coal, all measurements being done by thermogravimetry. The combustion of pyrolyzed sewage sludges has also been studied, related to the possibility of combining combustion with pyrolysis when trying to valorize sludges by producing active carbon. From the burning profile data it has been possible to observe that a rapid devolatilization occurs during sludge combustion compared to coal and previously pyrolyzed sludge. The exact temperatures of devolatilization and of maximum speed of weight loss have also been ascertained together with differential thermal analysis and measurements of gas emissions during combustion. The behavior of the sludges tested is qualitatively similar but quantitatively different, so tests have to be carried out before they are put in the furnace.
138 citations 138 popularity Top 1% influence Top 1% impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/s0961-9534(02)00012-0&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Marta Otero; C. Dı́ez;
Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Antonio Morán; Antonio Morán
Harvested from ORCID Public Data FileAntonio Morán in OpenAIRE A.I. García; +1 AuthorsA.I. García
Harvested from ORCID Public Data FileA.I. García in OpenAIRE Marta Otero; C. Dı́ez;Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Antonio Morán; Antonio Morán
Harvested from ORCID Public Data FileAntonio Morán in OpenAIRE A.I. García; L.F. Calvo;A.I. García
Harvested from ORCID Public Data FileA.I. García in OpenAIRECombustion of sewage sludge may be a viable solution for its management in some cases and so is its co-combustion with coal. The aim of the present paper is to study the behavior of three different sludges during combustion and the modifications of combustion parameters that take place when sludges are mixed with coal, all measurements being done by thermogravimetry. The combustion of pyrolyzed sewage sludges has also been studied, related to the possibility of combining combustion with pyrolysis when trying to valorize sludges by producing active carbon. From the burning profile data it has been possible to observe that a rapid devolatilization occurs during sludge combustion compared to coal and previously pyrolyzed sludge. The exact temperatures of devolatilization and of maximum speed of weight loss have also been ascertained together with differential thermal analysis and measurements of gas emissions during combustion. The behavior of the sludges tested is qualitatively similar but quantitatively different, so tests have to be carried out before they are put in the furnace.
138 citations 138 popularity Top 1% influence Top 1% impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/s0961-9534(02)00012-0&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - M.J. Cuetos;
M.J. Cuetos
Harvested from ORCID Public Data FileM.J. Cuetos in OpenAIRE E. Judith Martínez; E. Judith Martínez
Harvested from ORCID Public Data FileE. Judith Martínez in OpenAIRE Marta Otero; Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Rubén González; +2 AuthorsRubén González
Harvested from ORCID Public Data FileRubén González in OpenAIRE M.J. Cuetos; M.J. Cuetos
Harvested from ORCID Public Data FileM.J. Cuetos in OpenAIRE E. Judith Martínez; E. Judith Martínez
Harvested from ORCID Public Data FileE. Judith Martínez in OpenAIRE Marta Otero; Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Rubén González; Xiomar Gómez; R. Moreno;Rubén González
Harvested from ORCID Public Data FileRubén González in OpenAIREThe potential of using anaerobic digestion for the treatment of poultry blood has been evaluated in batch assays at the laboratory scale and in a mesophilic semi-continuous reactor. The biodegradability test performed on residual poultry blood was carried out in spite of high inhibitory levels of acid intermediaries. The use of activated carbon as a way to prevent inhibitory conditions demonstrated the feasibility of attaining anaerobic digestion under extreme ammonium and acid conditions. Batch assays with higher carbon content presented higher methane production rates, although the difference in the final cumulative biogas production was not as sharp. The digestion of residual blood was also studied under semi-continuous operation using granular and powdered activated carbon. The average specific methane production was 216 ± 12 mL CH4/g VS. This result was obtained in spite of a strong volatile fatty acid (VFA) accumulation, reaching values around 6 g/L, along with high ammonium concentrations (in the range of 6-8 g/L). The use of powdered activated carbon resulted in a better assimilation of C3-C5 acid forms, indicating that an enhancement in syntrophic metabolism may have taken place. Thermal analysis and scanning electron microscopy (SEM) were applied as analytical tools for measuring the presence of organic material in the final digestate and evidencing modifications on the carbon surface. The addition of activated carbon for the digestion of residual blood highly improved the digestion process. The adsorption capacity of ammonium, the protection this carrier may offer by limiting mass transfer of toxic compounds, and its capacity to act as a conductive material may explain the successful digestion of residual blood as the sole substrate.
Access RoutesGreen gold 78 citations 78 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jare.2016.12.004&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - M.J. Cuetos;
M.J. Cuetos
Harvested from ORCID Public Data FileM.J. Cuetos in OpenAIRE E. Judith Martínez; E. Judith Martínez
Harvested from ORCID Public Data FileE. Judith Martínez in OpenAIRE Marta Otero; Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Rubén González; +2 AuthorsRubén González
Harvested from ORCID Public Data FileRubén González in OpenAIRE M.J. Cuetos; M.J. Cuetos
Harvested from ORCID Public Data FileM.J. Cuetos in OpenAIRE E. Judith Martínez; E. Judith Martínez
Harvested from ORCID Public Data FileE. Judith Martínez in OpenAIRE Marta Otero; Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Rubén González; Xiomar Gómez; R. Moreno;Rubén González
Harvested from ORCID Public Data FileRubén González in OpenAIREThe potential of using anaerobic digestion for the treatment of poultry blood has been evaluated in batch assays at the laboratory scale and in a mesophilic semi-continuous reactor. The biodegradability test performed on residual poultry blood was carried out in spite of high inhibitory levels of acid intermediaries. The use of activated carbon as a way to prevent inhibitory conditions demonstrated the feasibility of attaining anaerobic digestion under extreme ammonium and acid conditions. Batch assays with higher carbon content presented higher methane production rates, although the difference in the final cumulative biogas production was not as sharp. The digestion of residual blood was also studied under semi-continuous operation using granular and powdered activated carbon. The average specific methane production was 216 ± 12 mL CH4/g VS. This result was obtained in spite of a strong volatile fatty acid (VFA) accumulation, reaching values around 6 g/L, along with high ammonium concentrations (in the range of 6-8 g/L). The use of powdered activated carbon resulted in a better assimilation of C3-C5 acid forms, indicating that an enhancement in syntrophic metabolism may have taken place. Thermal analysis and scanning electron microscopy (SEM) were applied as analytical tools for measuring the presence of organic material in the final digestate and evidencing modifications on the carbon surface. The addition of activated carbon for the digestion of residual blood highly improved the digestion process. The adsorption capacity of ammonium, the protection this carrier may offer by limiting mass transfer of toxic compounds, and its capacity to act as a conductive material may explain the successful digestion of residual blood as the sole substrate.
Access RoutesGreen gold 78 citations 78 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jare.2016.12.004&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Marta Otero; Carla Escapa;
Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Sergio A. Paniagua; Sergio A. Paniagua
Harvested from ORCID Public Data FileSergio A. Paniagua in OpenAIRE Ricardo N. Coimbra; +1 AuthorsRicardo N. Coimbra
Harvested from ORCID Public Data FileRicardo N. Coimbra in OpenAIRE Marta Otero; Carla Escapa;Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Sergio A. Paniagua; Sergio A. Paniagua
Harvested from ORCID Public Data FileSergio A. Paniagua in OpenAIRE Ricardo N. Coimbra; Ricardo N. Coimbra
Harvested from ORCID Public Data FileRicardo N. Coimbra in OpenAIRE A.I. García; A.I. García
Harvested from ORCID Public Data FileA.I. García in OpenAIREThis work aimed to study both the removal of nutrients and pharmaceuticals, namely salicylic acid or paracetamol, from water by the culture of Chlorella sorokiniana. The removal of nutrients was nearly complete at the end of the batch culture; above 70% for nitrates and 89% for phosphates in the semicontinuous culture. The pharmaceuticals removal kinetics were 2.3 times greater for the salicylic acid than paracetamol, reaching volumetric efficiencies above 93% for salicylic acid in the semicontinuous culture. Finally, to separate the microalgae biomass from treated water, metal salts, synthetic polyelectrolytes and a biopolymer were tested as coagulants-flocculants. The best flocculation results were achieved with AlCl3 (95.23% with 200mgg(-1), 1min incubation time). However, given that resulting flocs had different characteristics, flocculants must be chosen on the basis of the subsequent use of the biomass.
96 citations 96 popularity Top 1% influence Top 10% impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.biortech.2015.03.004&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Marta Otero; Carla Escapa;
Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Sergio A. Paniagua; Sergio A. Paniagua
Harvested from ORCID Public Data FileSergio A. Paniagua in OpenAIRE Ricardo N. Coimbra; +1 AuthorsRicardo N. Coimbra
Harvested from ORCID Public Data FileRicardo N. Coimbra in OpenAIRE Marta Otero; Carla Escapa;Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Sergio A. Paniagua; Sergio A. Paniagua
Harvested from ORCID Public Data FileSergio A. Paniagua in OpenAIRE Ricardo N. Coimbra; Ricardo N. Coimbra
Harvested from ORCID Public Data FileRicardo N. Coimbra in OpenAIRE A.I. García; A.I. García
Harvested from ORCID Public Data FileA.I. García in OpenAIREThis work aimed to study both the removal of nutrients and pharmaceuticals, namely salicylic acid or paracetamol, from water by the culture of Chlorella sorokiniana. The removal of nutrients was nearly complete at the end of the batch culture; above 70% for nitrates and 89% for phosphates in the semicontinuous culture. The pharmaceuticals removal kinetics were 2.3 times greater for the salicylic acid than paracetamol, reaching volumetric efficiencies above 93% for salicylic acid in the semicontinuous culture. Finally, to separate the microalgae biomass from treated water, metal salts, synthetic polyelectrolytes and a biopolymer were tested as coagulants-flocculants. The best flocculation results were achieved with AlCl3 (95.23% with 200mgg(-1), 1min incubation time). However, given that resulting flocs had different characteristics, flocculants must be chosen on the basis of the subsequent use of the biomass.
96 citations 96 popularity Top 1% influence Top 10% impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.biortech.2015.03.004&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - L.F. Calvo; Sergio A. Paniagua;
Sergio A. Paniagua
Harvested from ORCID Public Data FileSergio A. Paniagua in OpenAIRE Ricardo N. Coimbra; Ricardo N. Coimbra
Harvested from ORCID Public Data FileRicardo N. Coimbra in OpenAIRE Marta Otero; +2 AuthorsMarta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIREL.F. Calvo; Sergio A. Paniagua; Sergio A. Paniagua
Harvested from ORCID Public Data FileSergio A. Paniagua in OpenAIRE Ricardo N. Coimbra; Ricardo N. Coimbra
Harvested from ORCID Public Data FileRicardo N. Coimbra in OpenAIRE Marta Otero; Marta Otero; Carla Escapa;Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIREProperties of primary and secondary pulp mill sludge are unalike and are also very different from those of coal. Thermogravimetric analysis was used to assess the separate combustion of coal, primary and secondary pulp mill sludge. Then, the co-combustion of coal with primary and with secondary pulp mill sludge was studied under identical experimental conditions. Both Differential Thermogravimetry burning profiles (DTG) and Differential Scanning Calorimetric analysis (DSC) showed remarkable differences between the combustion of coal, primary and secondary paper mill sludge. However, compared with the combustion of coal, the effects of adding a 10 wt.% of either primary or secondary paper mill sludge were not relevant in terms of weight loss or heat release. This was further proved by non-isothermal kinetic analysis, which was used to evaluate the apparent activation energy corresponding to the single combustions and to the co-combustion of blends.
52 citations 52 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.renene.2015.05.046&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - L.F. Calvo; Sergio A. Paniagua;
Sergio A. Paniagua
Harvested from ORCID Public Data FileSergio A. Paniagua in OpenAIRE Ricardo N. Coimbra; Ricardo N. Coimbra
Harvested from ORCID Public Data FileRicardo N. Coimbra in OpenAIRE Marta Otero; +2 AuthorsMarta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIREL.F. Calvo; Sergio A. Paniagua; Sergio A. Paniagua
Harvested from ORCID Public Data FileSergio A. Paniagua in OpenAIRE Ricardo N. Coimbra; Ricardo N. Coimbra
Harvested from ORCID Public Data FileRicardo N. Coimbra in OpenAIRE Marta Otero; Marta Otero; Carla Escapa;Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIREProperties of primary and secondary pulp mill sludge are unalike and are also very different from those of coal. Thermogravimetric analysis was used to assess the separate combustion of coal, primary and secondary pulp mill sludge. Then, the co-combustion of coal with primary and with secondary pulp mill sludge was studied under identical experimental conditions. Both Differential Thermogravimetry burning profiles (DTG) and Differential Scanning Calorimetric analysis (DSC) showed remarkable differences between the combustion of coal, primary and secondary paper mill sludge. However, compared with the combustion of coal, the effects of adding a 10 wt.% of either primary or secondary paper mill sludge were not relevant in terms of weight loss or heat release. This was further proved by non-isothermal kinetic analysis, which was used to evaluate the apparent activation energy corresponding to the single combustions and to the co-combustion of blends.
52 citations 52 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.renene.2015.05.046&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Marta Otero; Sandra I.M. Carvalho;
Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Eduarda B.H. Santos; Eduarda B.H. Santos
Harvested from ORCID Public Data FileEduarda B.H. Santos in OpenAIRE Armando C. Duarte; Armando C. Duarte
Harvested from ORCID Public Data FileArmando C. Duarte in OpenAIREThe pulp and paper industry generates large volume of wastewater that adversely affects water resources. Lignin derived macromolecular compounds, similar to natural humic substances, are the main waste products in the pulp mill effluents. The UV-Vis and fluorescence spectroscopies were used to assess the effect of solar exposition on fulvic acids from a kraft pulp mill effluent. Solar irradiation of the solutions of these fulvic acids caused solution acidification and decay both in the UV-Vis absorbance and in the fluorescence. This decay was not the same for the whole spectra but pointed to the selective photodegradation of lignin typical structures. Furthermore, by sequential ultrafiltration it was found that during irradiation, the high-molecular weight fractions were destroyed and low-molecular-weight constituents, potentially more able to penetrate the cell membranes of living organisms were formed. Photodegradation of macromolecular organic matter from a kraft pulp mill effluent may be a key process occurring in natural waters that modifies the physicochemical properties of such effluents.
19 citations 19 popularity Top 10% influence Average impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.chemosphere.2007.11.046&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Marta Otero; Sandra I.M. Carvalho;
Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIRE Eduarda B.H. Santos; Eduarda B.H. Santos
Harvested from ORCID Public Data FileEduarda B.H. Santos in OpenAIRE Armando C. Duarte; Armando C. Duarte
Harvested from ORCID Public Data FileArmando C. Duarte in OpenAIREThe pulp and paper industry generates large volume of wastewater that adversely affects water resources. Lignin derived macromolecular compounds, similar to natural humic substances, are the main waste products in the pulp mill effluents. The UV-Vis and fluorescence spectroscopies were used to assess the effect of solar exposition on fulvic acids from a kraft pulp mill effluent. Solar irradiation of the solutions of these fulvic acids caused solution acidification and decay both in the UV-Vis absorbance and in the fluorescence. This decay was not the same for the whole spectra but pointed to the selective photodegradation of lignin typical structures. Furthermore, by sequential ultrafiltration it was found that during irradiation, the high-molecular weight fractions were destroyed and low-molecular-weight constituents, potentially more able to penetrate the cell membranes of living organisms were formed. Photodegradation of macromolecular organic matter from a kraft pulp mill effluent may be a key process occurring in natural waters that modifies the physicochemical properties of such effluents.
19 citations 19 popularity Top 10% influence Average impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.chemosphere.2007.11.046&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Ferreira, Catarina I. A.; Calisto, Vania;
Calisto, Vania
Harvested from ORCID Public Data FileCalisto, Vania in OpenAIRE Santos, Sergio M.; Santos, Sergio M.
Harvested from ORCID Public Data FileSantos, Sergio M. in OpenAIRE Cuerda-Correa, Eduardo M.; +3 AuthorsCuerda-Correa, Eduardo M.
Harvested from ORCID Public Data FileCuerda-Correa, Eduardo M. in OpenAIREFerreira, Catarina I. A.; Calisto, Vania; Calisto, Vania
Harvested from ORCID Public Data FileCalisto, Vania in OpenAIRE Santos, Sergio M.; Santos, Sergio M.
Harvested from ORCID Public Data FileSantos, Sergio M. in OpenAIRE Cuerda-Correa, Eduardo M.; Cuerda-Correa, Eduardo M.
Harvested from ORCID Public Data FileCuerda-Correa, Eduardo M. in OpenAIRE Otero, Marta; Otero, Marta
Harvested from ORCID Public Data FileOtero, Marta in OpenAIRE Nadais, Helena; Nadais, Helena
Harvested from ORCID Public Data FileNadais, Helena in OpenAIRE Esteves, Valdemar I.; Esteves, Valdemar I.
Harvested from ORCID Public Data FileEsteves, Valdemar I. in OpenAIREAbstract This work aims to test the adsorption process for the removal of the fish anaesthetic MS-222 from water using biochars obtained from agricultural biowastes ( Eucalyptus bark, peanut shells, walnut shells, peach stones, grape seeds and olive waste) as adsorbents. An industrial residue (primary paper mill sludge) and a commercial activated carbon were tested for comparison purposes. The starting materials and the resulting biochars were characterized by elemental and proximate analyses, total organic carbon, FTIR, 13 C and 1 H solid state NMR, and SEM. Also, specific surface area and porosity of biochars were determined. Then, batch kinetic and equilibrium experiments were performed on the adsorption of MS-222 onto the different produced biochars. The fastest kinetic was obtained using primary sludge pyrolysed (30 min to equilibrium attainment) and the highest biochars adsorption capacity was obtained using peanut shells (34 mg g −1 of maximum adsorption capacity, predicted by the Langmuir–Freundlich model). Commercial activated carbon reaches 349 mg g −1 of maximum adsorption capacity, as predicted by Langmuir model.
17 citations 17 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jaap.2015.01.006&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Ferreira, Catarina I. A.; Calisto, Vania;
Calisto, Vania
Harvested from ORCID Public Data FileCalisto, Vania in OpenAIRE Santos, Sergio M.; Santos, Sergio M.
Harvested from ORCID Public Data FileSantos, Sergio M. in OpenAIRE Cuerda-Correa, Eduardo M.; +3 AuthorsCuerda-Correa, Eduardo M.
Harvested from ORCID Public Data FileCuerda-Correa, Eduardo M. in OpenAIREFerreira, Catarina I. A.; Calisto, Vania; Calisto, Vania
Harvested from ORCID Public Data FileCalisto, Vania in OpenAIRE Santos, Sergio M.; Santos, Sergio M.
Harvested from ORCID Public Data FileSantos, Sergio M. in OpenAIRE Cuerda-Correa, Eduardo M.; Cuerda-Correa, Eduardo M.
Harvested from ORCID Public Data FileCuerda-Correa, Eduardo M. in OpenAIRE Otero, Marta; Otero, Marta
Harvested from ORCID Public Data FileOtero, Marta in OpenAIRE Nadais, Helena; Nadais, Helena
Harvested from ORCID Public Data FileNadais, Helena in OpenAIRE Esteves, Valdemar I.; Esteves, Valdemar I.
Harvested from ORCID Public Data FileEsteves, Valdemar I. in OpenAIREAbstract This work aims to test the adsorption process for the removal of the fish anaesthetic MS-222 from water using biochars obtained from agricultural biowastes ( Eucalyptus bark, peanut shells, walnut shells, peach stones, grape seeds and olive waste) as adsorbents. An industrial residue (primary paper mill sludge) and a commercial activated carbon were tested for comparison purposes. The starting materials and the resulting biochars were characterized by elemental and proximate analyses, total organic carbon, FTIR, 13 C and 1 H solid state NMR, and SEM. Also, specific surface area and porosity of biochars were determined. Then, batch kinetic and equilibrium experiments were performed on the adsorption of MS-222 onto the different produced biochars. The fastest kinetic was obtained using primary sludge pyrolysed (30 min to equilibrium attainment) and the highest biochars adsorption capacity was obtained using peanut shells (34 mg g −1 of maximum adsorption capacity, predicted by the Langmuir–Freundlich model). Commercial activated carbon reaches 349 mg g −1 of maximum adsorption capacity, as predicted by Langmuir model.
17 citations 17 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jaap.2015.01.006&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - FCT| Centre for Environmental and Marine Studies Ricardo N. Coimbra;
Ricardo N. Coimbra
Harvested from ORCID Public Data FileRicardo N. Coimbra in OpenAIRE Carla Escapa; Carla Escapa
Harvested from ORCID Public Data FileCarla Escapa in OpenAIRE Marta Otero; Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIREIn this work, thermogravimetric analysis (TGA), differential thermogravimetry (DTG), and differential scanning calorimetric (DSC) were used to assess the combustion of microalgae biomass, a bituminous coal, and their blend. Furthermore, different correlations were tested for estimating the high heating value of microalgae biomass and coal, with both materials possessing similar values. TGA evidenced differences between the combustion of the studied fuels, but no relevant interaction occurred during their co-combustion, as shown by the DTG and DSC curves. These curves also indicated that the combustion of the blend mostly resembled that of coal in terms of weight loss and heat release. Moreover, non-isothermal kinetic analysis revealed that the apparent activation energies corresponding to the combustion of the blend and coal were quite close. Overall, the obtained results indicated that co-combustion with coal might be a feasible waste to energy management option for the valorization of microalgae biomass resulting from wastewater treatment.
Access Routesgold 26 citations 26 popularity Top 10% influence Average impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/en12152962&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - FCT| Centre for Environmental and Marine Studies Ricardo N. Coimbra;
Ricardo N. Coimbra
Harvested from ORCID Public Data FileRicardo N. Coimbra in OpenAIRE Carla Escapa; Carla Escapa
Harvested from ORCID Public Data FileCarla Escapa in OpenAIRE Marta Otero; Marta Otero
Harvested from ORCID Public Data FileMarta Otero in OpenAIREIn this work, thermogravimetric analysis (TGA), differential thermogravimetry (DTG), and differential scanning calorimetric (DSC) were used to assess the combustion of microalgae biomass, a bituminous coal, and their blend. Furthermore, different correlations were tested for estimating the high heating value of microalgae biomass and coal, with both materials possessing similar values. TGA evidenced differences between the combustion of the studied fuels, but no relevant interaction occurred during their co-combustion, as shown by the DTG and DSC curves. These curves also indicated that the combustion of the blend mostly resembled that of coal in terms of weight loss and heat release. Moreover, non-isothermal kinetic analysis revealed that the apparent activation energies corresponding to the combustion of the blend and coal were quite close. Overall, the obtained results indicated that co-combustion with coal might be a feasible waste to energy management option for the valorization of microalgae biomass resulting from wastewater treatment.
Access Routesgold 26 citations 26 popularity Top 10% influence Average impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/en12152962&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu
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