Allaoui, Hamid; Allaoui, Hamid
Harvested from ORCID Public Data FileAllaoui, Hamid in OpenAIRE Guo, Yuhan; Choudhary, Alok;Guo, Yuhan
Harvested from ORCID Public Data FileGuo, Yuhan in OpenAIRE
Bloemhof-Ruwaard, J.M.; Bloemhof-Ruwaard, J.M.
Derived by OpenAIRE algorithms or harvested from 3rd party repositoriesBloemhof-Ruwaard, J.M. in OpenAIRESustainability of agro-food supply chains has recently become the subject of greater interest from consumers, firms, governmental organizations and academia as the environment continues to deteriorate. One of the most critical factors influencing the sustainability of an agro-food supply chain is its network design. A particularly challenging aspect in this context is the broad range of influencing indicators associated with the Triple Bottom Line (TBL) of sustainability that need to be considered. However, many of these indicators could not be fully integrated or measured by single-step optimization problems. This paper presents a critical literature review of operational research methods for the design of sustainable supply chains. A novel two-stage hybrid solution methodology is proposed. In the first stage, a partner selection is performed using a hybrid multi criteria decision making based on Analytic Hierarchy Process (AHP) method and the Ordered Weighted Averaging (OWA) aggregation method. The result obtained in the first stage is used in the second stage to develop a multi-objective mathematical model to optimize the design of the supply chain network. This approach allows the simultaneous consideration of all three dimensions of sustainability including carbon footprint, water footprint, number of jobs created and the total cost of the supply chain design. The proposed approach generates a Pareto frontier to aid users in making decisions. Numerical experiments are completed utilizing data from an agro-food company to demonstrate the efficiency and effectiveness of the proposed solution methodology. The analyzes of the numerical results provide important organizational, practical and policy insights on (1) the impact of financial and environmental sustainability on supply chain network design (2) the tradeoff analysis between environmental emission, water footprint, societal implications and associated cost for making informed decision on supply chain investment.
Access Routeshybrid 215 citations 215 popularity Top 1% influence Top 10% impulse Top 0.1% 
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.cor.2016.10.012&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu- Allaoui, Hamid;
Allaoui, Hamid
Harvested from ORCID Public Data FileAllaoui, Hamid in OpenAIRE Guo, Yuhan; Choudhary, Alok;Guo, Yuhan
Harvested from ORCID Public Data FileGuo, Yuhan in OpenAIRE Bloemhof-Ruwaard, J.M.; Bloemhof-Ruwaard, J.M.
Derived by OpenAIRE algorithms or harvested from 3rd party repositoriesBloemhof-Ruwaard, J.M. in OpenAIRESustainability of agro-food supply chains has recently become the subject of greater interest from consumers, firms, governmental organizations and academia as the environment continues to deteriorate. One of the most critical factors influencing the sustainability of an agro-food supply chain is its network design. A particularly challenging aspect in this context is the broad range of influencing indicators associated with the Triple Bottom Line (TBL) of sustainability that need to be considered. However, many of these indicators could not be fully integrated or measured by single-step optimization problems. This paper presents a critical literature review of operational research methods for the design of sustainable supply chains. A novel two-stage hybrid solution methodology is proposed. In the first stage, a partner selection is performed using a hybrid multi criteria decision making based on Analytic Hierarchy Process (AHP) method and the Ordered Weighted Averaging (OWA) aggregation method. The result obtained in the first stage is used in the second stage to develop a multi-objective mathematical model to optimize the design of the supply chain network. This approach allows the simultaneous consideration of all three dimensions of sustainability including carbon footprint, water footprint, number of jobs created and the total cost of the supply chain design. The proposed approach generates a Pareto frontier to aid users in making decisions. Numerical experiments are completed utilizing data from an agro-food company to demonstrate the efficiency and effectiveness of the proposed solution methodology. The analyzes of the numerical results provide important organizational, practical and policy insights on (1) the impact of financial and environmental sustainability on supply chain network design (2) the tradeoff analysis between environmental emission, water footprint, societal implications and associated cost for making informed decision on supply chain investment.
Access Routeshybrid 215 citations 215 popularity Top 1% influence Top 10% impulse Top 0.1% 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.cor.2016.10.012&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Lyubov Pyha; Juraj Durove; Yevhen Ogorodnyk; Hennadii Haiko;
Hennadii Haiko
Harvested from ORCID Public Data FileHennadii Haiko in OpenAIREThe concept and a new method for the shielded development of bottom gas hydrates have been proposed, the technological phases and constructive elements of their implementation have been substantiated. The research provides for the realization of the idea suggesting the simultaneous dissociation of the vast areas of a gas hydrate deposit, management of the targeted process of the penetration of methane recovered from gas hydrates into water space and its accumulation under the extensive gas-collecting shield wherefrom it is removed by bottom pipe transportation facilities. To do hydraulic fracturing, a well is drilled into the plane of the junction of the surface of a gas hydrate deposit and the rocks of a roof, the open system of fissures in the rocks of a roof is made through which produced gas is released to a gas-collecting blanket in a water.
1 citations 1 popularity Average influence Average 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=10.4028/www.scientific.net/ssp.277.27&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Lyubov Pyha; Juraj Durove; Yevhen Ogorodnyk; Hennadii Haiko;
Hennadii Haiko
Harvested from ORCID Public Data FileHennadii Haiko in OpenAIREThe concept and a new method for the shielded development of bottom gas hydrates have been proposed, the technological phases and constructive elements of their implementation have been substantiated. The research provides for the realization of the idea suggesting the simultaneous dissociation of the vast areas of a gas hydrate deposit, management of the targeted process of the penetration of methane recovered from gas hydrates into water space and its accumulation under the extensive gas-collecting shield wherefrom it is removed by bottom pipe transportation facilities. To do hydraulic fracturing, a well is drilled into the plane of the junction of the surface of a gas hydrate deposit and the rocks of a roof, the open system of fissures in the rocks of a roof is made through which produced gas is released to a gas-collecting blanket in a water.
1 citations 1 popularity Average influence Average 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=10.4028/www.scientific.net/ssp.277.27&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - De la Rubia Romero, M.A.;
De la Rubia Romero, M.A.
Harvested from ORCID Public Data FileDe la Rubia Romero, M.A. in OpenAIRE Perez, M.; Romero, L.I.; Romero, L.I.
Harvested from ORCID Public Data FileRomero, L.I. in OpenAIRE Sales, D.; This paper describes anaerobic thermophilic sludge digestion (55 °C) in a continuously stirred tank reactor (CSTR) on a pilot-plant scale (150 L). The experimental protocol was defined to examine the effect of the increase in the organic loading rate on the efficiency of the digester and to report on its steady-state performance. The reactor was subjected to a programme of steady-state operation over a range of solids retention times (SRTs) of 75, 40, 27, 20 and 15 days and organic loading rates (OLR) in the range 0.4–2.2 kg VS/(m3 day). The digester was fed with raw sludge (containing approximately 35 kg/m3 volatile solids (VS)) once daily during the 75-day SRT period, twice daily during the 40-day SRT period and three times a day during the 27-, 20- and 15-day SRT periods. The reactor was initially operated with an organic loading rate of 0.4 kg VS/(m3 day) and an SRT of 75 days. The volatile solids removal efficiency in the reactor was found to be 73%, while the volumetric methane production rate produced in the digester reached 0.02 m3/(m3 day). Over a 338-day operating period, an OLR of 2.2 kg VS/(m3 day) was achieved with 49.1% VS removal efficiency in the pilot sludge digester, at which time the volumetric methane production rate content of biogas produced in the digester reached 0.4 m3/(m3 day). The chemical oxygen demand (COD) mass balance obtained indicated that COD used for methane generation increased when the SRT was decreased or when the influent organic loading rate was increased. This implies that the amount of COD used in the anabolism route decreased with SRT due the microbial population becoming adapted to new operational conditions and more COD being used to generate methane.
114 citations 114 popularity Top 10% 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.procbio.2005.03.073&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - De la Rubia Romero, M.A.;
De la Rubia Romero, M.A.
Harvested from ORCID Public Data FileDe la Rubia Romero, M.A. in OpenAIRE Perez, M.; Romero, L.I.; Romero, L.I.
Harvested from ORCID Public Data FileRomero, L.I. in OpenAIRE Sales, D.; This paper describes anaerobic thermophilic sludge digestion (55 °C) in a continuously stirred tank reactor (CSTR) on a pilot-plant scale (150 L). The experimental protocol was defined to examine the effect of the increase in the organic loading rate on the efficiency of the digester and to report on its steady-state performance. The reactor was subjected to a programme of steady-state operation over a range of solids retention times (SRTs) of 75, 40, 27, 20 and 15 days and organic loading rates (OLR) in the range 0.4–2.2 kg VS/(m3 day). The digester was fed with raw sludge (containing approximately 35 kg/m3 volatile solids (VS)) once daily during the 75-day SRT period, twice daily during the 40-day SRT period and three times a day during the 27-, 20- and 15-day SRT periods. The reactor was initially operated with an organic loading rate of 0.4 kg VS/(m3 day) and an SRT of 75 days. The volatile solids removal efficiency in the reactor was found to be 73%, while the volumetric methane production rate produced in the digester reached 0.02 m3/(m3 day). Over a 338-day operating period, an OLR of 2.2 kg VS/(m3 day) was achieved with 49.1% VS removal efficiency in the pilot sludge digester, at which time the volumetric methane production rate content of biogas produced in the digester reached 0.4 m3/(m3 day). The chemical oxygen demand (COD) mass balance obtained indicated that COD used for methane generation increased when the SRT was decreased or when the influent organic loading rate was increased. This implies that the amount of COD used in the anabolism route decreased with SRT due the microbial population becoming adapted to new operational conditions and more COD being used to generate methane.
114 citations 114 popularity Top 10% 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.procbio.2005.03.073&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - L. Kairouani; and E. Nehdi; M. Elakdhar;
L. Kairouani
Harvested from ORCID Public Data FileL. Kairouani in OpenAIREA theoretical analysis of a compression/ejection hybrid cycle for domestic refrigeration is presented in this paper. In this cycle, an ejector is employed to reduce the loss of available energy due to the large temperature difference between the fresh food section and the freezer section. A theoretical model is established and simulated with FORTRAN. Thermodynamic properties of working fluids are obtained with the package REFPROP, version 8.0. The performance of this system using several refrigerants (R123, R124, R141b, R290, R152a, R717, R600a, and R134a) is presented. The results show that the entrainment ratio and the coefficient of performance depend mainly on the fluid nature and the operating conditions. According to the results of simulation of the hybrid cycle using several refrigerants, the ejection cycle can reach a higher coefficient of performance compared with the standard cycle. R141b gives the most excellent performances.
63 citations 63 popularity Top 10% 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=10.1021/ie070377e&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - L. Kairouani; and E. Nehdi; M. Elakdhar;
L. Kairouani
Harvested from ORCID Public Data FileL. Kairouani in OpenAIREA theoretical analysis of a compression/ejection hybrid cycle for domestic refrigeration is presented in this paper. In this cycle, an ejector is employed to reduce the loss of available energy due to the large temperature difference between the fresh food section and the freezer section. A theoretical model is established and simulated with FORTRAN. Thermodynamic properties of working fluids are obtained with the package REFPROP, version 8.0. The performance of this system using several refrigerants (R123, R124, R141b, R290, R152a, R717, R600a, and R134a) is presented. The results show that the entrainment ratio and the coefficient of performance depend mainly on the fluid nature and the operating conditions. According to the results of simulation of the hybrid cycle using several refrigerants, the ejection cycle can reach a higher coefficient of performance compared with the standard cycle. R141b gives the most excellent performances.
63 citations 63 popularity Top 10% 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=10.1021/ie070377e&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Qunxing Huang; Ange Nzihou; Yong Chi; Jun Dong; +4 Authors
Ange Nzihou
Harvested from ORCID Public Data FileAnge Nzihou in OpenAIREQunxing Huang; Ange Nzihou; Yong Chi; Jun Dong; Jun Dong;Ange Nzihou
Harvested from ORCID Public Data FileAnge Nzihou in OpenAIRE Yuanjun Tang; Yuanjun Tang
Harvested from ORCID Public Data FileYuanjun Tang in OpenAIRE Elsa Weiss-Hortala; Mingjiang Ni;Elsa Weiss-Hortala
Harvested from ORCID Public Data FileElsa Weiss-Hortala in OpenAIREHeavy metal emission is a great environmental concern for the development of municipal solid waste (MSW) thermal treatment techniques. In this study, both experimental investigations and theoretical simulations are carried out to identify the partitioning of heavy metals between the gaseous phase and solid fractions during pyrolysis, gasification, and incineration of simulated MSW. Two types of incinerators are used. A tubular furnace is applied to evaluate the evaporation of metals from residues, whereas the metal distribution among bottom ash, cyclone fly ash, and filter fly ash is further examined in a fluidized bed. Six target metals (Cd, Pb, Zn, Cu, Cr, and Ni) are studied. Results show that a reductive atmosphere favors the evaporation of Cd and Zn but refrains Cu, Ni, and Cr volatilization, because metals are mainly reduced to their elemental form or sulfide, according to thermodynamic equilibrium calculation. Oxides are the dominant species under oxidizing condition due to the abundance of alkalis...
Access Routesbronze 86 citations 86 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=10.1021/acs.energyfuels.5b01918&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Qunxing Huang; Ange Nzihou; Yong Chi; Jun Dong; +4 Authors
Ange Nzihou
Harvested from ORCID Public Data FileAnge Nzihou in OpenAIREQunxing Huang; Ange Nzihou; Yong Chi; Jun Dong; Jun Dong;Ange Nzihou
Harvested from ORCID Public Data FileAnge Nzihou in OpenAIRE Yuanjun Tang; Yuanjun Tang
Harvested from ORCID Public Data FileYuanjun Tang in OpenAIRE Elsa Weiss-Hortala; Mingjiang Ni;Elsa Weiss-Hortala
Harvested from ORCID Public Data FileElsa Weiss-Hortala in OpenAIREHeavy metal emission is a great environmental concern for the development of municipal solid waste (MSW) thermal treatment techniques. In this study, both experimental investigations and theoretical simulations are carried out to identify the partitioning of heavy metals between the gaseous phase and solid fractions during pyrolysis, gasification, and incineration of simulated MSW. Two types of incinerators are used. A tubular furnace is applied to evaluate the evaporation of metals from residues, whereas the metal distribution among bottom ash, cyclone fly ash, and filter fly ash is further examined in a fluidized bed. Six target metals (Cd, Pb, Zn, Cu, Cr, and Ni) are studied. Results show that a reductive atmosphere favors the evaporation of Cd and Zn but refrains Cu, Ni, and Cr volatilization, because metals are mainly reduced to their elemental form or sulfide, according to thermodynamic equilibrium calculation. Oxides are the dominant species under oxidizing condition due to the abundance of alkalis...
Access Routesbronze 86 citations 86 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=10.1021/acs.energyfuels.5b01918&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Ange Nzihou;
Ange Nzihou
Harvested from ORCID Public Data FileAnge Nzihou in OpenAIRE Nathalie Lyczko; Nathalie Lyczko
Harvested from ORCID Public Data FileNathalie Lyczko in OpenAIRE Doan Pham Minh; Yaqian Zhao; +2 AuthorsDoan Pham Minh
Harvested from ORCID Public Data FileDoan Pham Minh in OpenAIRE Ange Nzihou; Ange Nzihou
Harvested from ORCID Public Data FileAnge Nzihou in OpenAIRE Nathalie Lyczko; Nathalie Lyczko
Harvested from ORCID Public Data FileNathalie Lyczko in OpenAIRE Doan Pham Minh; Yaqian Zhao; Olumide Wesley Awe; Olumide Wesley Awe;Doan Pham Minh
Harvested from ORCID Public Data FileDoan Pham Minh in OpenAIREAbstract Biogas is a valuable renewable energy that can be used as a fuel or as raw material for the production of hydrogen, synthesis gas and chemicals. Apart from its main constituent of CH 4 and CO 2 , it also contained various undesirable contaminants. The removal of these contaminants such as H 2 S will significantly improve the quality of the biogas for further use. This work involved the valorization of calcium carbonate (CaCO 3 )-based solid wastes for the removal of H 2 S from the biogas stream. The solid wastes were analyzed by different physicochemical methods CaCO 3 was found as the main component of both solid wastes, while trace amounts of other elements such as Mg, Al, etc. were also present. The solid wastes were dispersed in water and the resulted suspensions were tested for the removal of H 2 S from the gas phase, using a triphasic gas/liquid/solid glass reactor at room temperature and pressure. A commercial activated carbon (AC) and a pure commercial calcite were also used for comparison purpose. In addition, mixtures of AC with CaCO 3 waste in different ratios were also tested. The influence of the matrix of gas (air or biogas) on the removal of H 2 S was evaluated. Both solid wastes showed higher performance compared to the pure commercial calcite for H 2 S removal. The coupling of a CaCO 3 waste and AC allowed improving the sorption performance compared to pure commercial CaCO 3 and AC used alone. The results obtained open a new promising way for the valorization of CaCO 3 -based wastes for H 2 S removal from biogas.
Access Routesbronze 31 citations 31 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.jece.2017.03.023&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Ange Nzihou;
Ange Nzihou
Harvested from ORCID Public Data FileAnge Nzihou in OpenAIRE Nathalie Lyczko; Nathalie Lyczko
Harvested from ORCID Public Data FileNathalie Lyczko in OpenAIRE Doan Pham Minh; Yaqian Zhao; +2 AuthorsDoan Pham Minh
Harvested from ORCID Public Data FileDoan Pham Minh in OpenAIRE Ange Nzihou; Ange Nzihou
Harvested from ORCID Public Data FileAnge Nzihou in OpenAIRE Nathalie Lyczko; Nathalie Lyczko
Harvested from ORCID Public Data FileNathalie Lyczko in OpenAIRE Doan Pham Minh; Yaqian Zhao; Olumide Wesley Awe; Olumide Wesley Awe;Doan Pham Minh
Harvested from ORCID Public Data FileDoan Pham Minh in OpenAIREAbstract Biogas is a valuable renewable energy that can be used as a fuel or as raw material for the production of hydrogen, synthesis gas and chemicals. Apart from its main constituent of CH 4 and CO 2 , it also contained various undesirable contaminants. The removal of these contaminants such as H 2 S will significantly improve the quality of the biogas for further use. This work involved the valorization of calcium carbonate (CaCO 3 )-based solid wastes for the removal of H 2 S from the biogas stream. The solid wastes were analyzed by different physicochemical methods CaCO 3 was found as the main component of both solid wastes, while trace amounts of other elements such as Mg, Al, etc. were also present. The solid wastes were dispersed in water and the resulted suspensions were tested for the removal of H 2 S from the gas phase, using a triphasic gas/liquid/solid glass reactor at room temperature and pressure. A commercial activated carbon (AC) and a pure commercial calcite were also used for comparison purpose. In addition, mixtures of AC with CaCO 3 waste in different ratios were also tested. The influence of the matrix of gas (air or biogas) on the removal of H 2 S was evaluated. Both solid wastes showed higher performance compared to the pure commercial calcite for H 2 S removal. The coupling of a CaCO 3 waste and AC allowed improving the sorption performance compared to pure commercial CaCO 3 and AC used alone. The results obtained open a new promising way for the valorization of CaCO 3 -based wastes for H 2 S removal from biogas.
Access Routesbronze 31 citations 31 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.jece.2017.03.023&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Eric Fourest; Marie Bertrand; Stephanie F. Ketep;
Eric Fourest
Derived by OpenAIRE algorithms or harvested from 3rd party repositoriesEric Fourest in OpenAIRE Mohamed Barakat; +4 AuthorsMohamed Barakat
Harvested from ORCID Public Data FileMohamed Barakat in OpenAIRE Eric Fourest; Marie Bertrand; Stephanie F. Ketep;Eric Fourest
Derived by OpenAIRE algorithms or harvested from 3rd party repositoriesEric Fourest in OpenAIRE Mohamed Barakat; Mohamed Barakat;Mohamed Barakat
Harvested from ORCID Public Data FileMohamed Barakat in OpenAIRE Alain Bergel; Alain Bergel
Harvested from ORCID Public Data FileAlain Bergel in OpenAIRE Wafa Achouak; Wafa Achouak;Wafa Achouak
Derived by OpenAIRE algorithms or harvested from 3rd party repositoriesWafa Achouak in OpenAIREMicrobial anodes were formed under polarization at -0.3 V/SCE on graphite plates in effluents from a pulp and paper mill. The bioanodes formed with the addition of acetate led to the highest current densities (up to 6A/m(2)) but were then unable to oxidize the raw effluent efficiently (0.5A/m(2)). In contrast, the bioanodes formed without acetate addition were fully able to oxidize the organic matter contained in the effluent, giving up to 4.5A/m(2) in continuous mode. Bacterial communities showed less bacterial diversity for the acetate-fed bioanodes compared to those formed in raw effluents. Deltaproteobacteria were the most abundant taxonomic group, with a high diversity for bioanodes formed without acetate addition but with almost 100% Desulfuromonas for the acetate-fed bioanodes. The addition of acetate to form the microbial anodes induced microbial selection, which was detrimental to the treatment of the raw effluent.
Access RoutesGreen bronze 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.2014.04.088&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Eric Fourest; Marie Bertrand; Stephanie F. Ketep;
Eric Fourest
Derived by OpenAIRE algorithms or harvested from 3rd party repositoriesEric Fourest in OpenAIRE Mohamed Barakat; +4 AuthorsMohamed Barakat
Harvested from ORCID Public Data FileMohamed Barakat in OpenAIRE Eric Fourest; Marie Bertrand; Stephanie F. Ketep;Eric Fourest
Derived by OpenAIRE algorithms or harvested from 3rd party repositoriesEric Fourest in OpenAIRE Mohamed Barakat; Mohamed Barakat;Mohamed Barakat
Harvested from ORCID Public Data FileMohamed Barakat in OpenAIRE Alain Bergel; Alain Bergel
Harvested from ORCID Public Data FileAlain Bergel in OpenAIRE Wafa Achouak; Wafa Achouak;Wafa Achouak
Derived by OpenAIRE algorithms or harvested from 3rd party repositoriesWafa Achouak in OpenAIREMicrobial anodes were formed under polarization at -0.3 V/SCE on graphite plates in effluents from a pulp and paper mill. The bioanodes formed with the addition of acetate led to the highest current densities (up to 6A/m(2)) but were then unable to oxidize the raw effluent efficiently (0.5A/m(2)). In contrast, the bioanodes formed without acetate addition were fully able to oxidize the organic matter contained in the effluent, giving up to 4.5A/m(2) in continuous mode. Bacterial communities showed less bacterial diversity for the acetate-fed bioanodes compared to those formed in raw effluents. Deltaproteobacteria were the most abundant taxonomic group, with a high diversity for bioanodes formed without acetate addition but with almost 100% Desulfuromonas for the acetate-fed bioanodes. The addition of acetate to form the microbial anodes induced microbial selection, which was detrimental to the treatment of the raw effluent.
Access RoutesGreen bronze 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.2014.04.088&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu 1 citations 1 popularity Average influence Average 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=10.22004/ag.econ.50942&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu1 citations 1 popularity Average influence Average 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=10.22004/ag.econ.50942&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu- Daniel Lamarre; Stéphane Déléris; Abdellah Ramdani; Yves Comeau; +2 Authors
Yves Comeau
Harvested from ORCID Public Data FileYves Comeau in OpenAIREDaniel Lamarre; Stéphane Déléris; Abdellah Ramdani; Yves Comeau; Peter Dold; Alain Gadbois;Yves Comeau
Harvested from ORCID Public Data FileYves Comeau in OpenAIREThis study evaluated the potential biodegradability of the endogenous residue in activated sludge subjected to batch digestion under either non-aerated or alternating aerated and non-aerated conditions. Mixed liquor for the tests was generated in a 200 L pilot-scale aerobic membrane bioreactor (MBR) operated at a 5.2 days SRT. The MBR system was fed a soluble and completely biodegradable synthetic influent composed of sodium acetate as the sole carbon source. This influent, which contained no influent unbiodegradable organic or inorganic materials, allowed to generate sludge composed of essentially two fractions: a heterotrophic biomass X(H) and an endogenous residue X(E), the nitrifying biomass being negligible (less than 2%). The endogenous decay rate and the active biomass fraction of the MBR sludge were determined in 21-day aerobic digestion batch tests by monitoring the VSS and OUR responses. Fractions of X(H) and X(E): 68% and 32% were obtained, respectively, at a 5.2 days SRT. To assess the biodegradability of X(E), two batch digestion units operated at 35 degrees C were run for 90 days using thickened sludge from the MBR system. In the first unit, anaerobic conditions were maintained while in the second unit, alternating aerated and non-aerated conditions were applied. Data for both units showed apparent partial biodegradation of the endogenous residue. Modeling the batch tests indicated endogenous residue decay rates of 0.005 d(-1) and 0.012 d(-1) for the anaerobic unit and the alternating aerated and non-aerated conditions, respectively.
88 citations 88 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.watres.2009.12.037&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Daniel Lamarre; Stéphane Déléris; Abdellah Ramdani; Yves Comeau; +2 Authors
Yves Comeau
Harvested from ORCID Public Data FileYves Comeau in OpenAIREDaniel Lamarre; Stéphane Déléris; Abdellah Ramdani; Yves Comeau; Peter Dold; Alain Gadbois;Yves Comeau
Harvested from ORCID Public Data FileYves Comeau in OpenAIREThis study evaluated the potential biodegradability of the endogenous residue in activated sludge subjected to batch digestion under either non-aerated or alternating aerated and non-aerated conditions. Mixed liquor for the tests was generated in a 200 L pilot-scale aerobic membrane bioreactor (MBR) operated at a 5.2 days SRT. The MBR system was fed a soluble and completely biodegradable synthetic influent composed of sodium acetate as the sole carbon source. This influent, which contained no influent unbiodegradable organic or inorganic materials, allowed to generate sludge composed of essentially two fractions: a heterotrophic biomass X(H) and an endogenous residue X(E), the nitrifying biomass being negligible (less than 2%). The endogenous decay rate and the active biomass fraction of the MBR sludge were determined in 21-day aerobic digestion batch tests by monitoring the VSS and OUR responses. Fractions of X(H) and X(E): 68% and 32% were obtained, respectively, at a 5.2 days SRT. To assess the biodegradability of X(E), two batch digestion units operated at 35 degrees C were run for 90 days using thickened sludge from the MBR system. In the first unit, anaerobic conditions were maintained while in the second unit, alternating aerated and non-aerated conditions were applied. Data for both units showed apparent partial biodegradation of the endogenous residue. Modeling the batch tests indicated endogenous residue decay rates of 0.005 d(-1) and 0.012 d(-1) for the anaerobic unit and the alternating aerated and non-aerated conditions, respectively.
88 citations 88 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.watres.2009.12.037&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Valo, A.; Carrère, Hélène; Delgenès, Jean-Philippe;
Carrère, Hélène
Harvested from ORCID Public Data FileCarrère, Hélène in OpenAIREAbstractThe influence of different pre‐treatments was studied in order to observe the effects of temperature, pH and treatment time on Waste Activated Sludge (WAS) solubilization, and anaerobic digestion of pre‐treated sludge. Results showed that thermo‐chemical pre‐treatments were the most efficient on Chemical Oxygen Demand (COD) solubilization, which could reach 83% at 170 °C with pH = 12. Yet, increase in COD solubilization in thermo‐chemical pre‐treatment was not linked to an increase in soluble Volatile Solids (VS) as optimal conditions were 170 °C, and 130 °C with pH = 10, for this criterion. So, temperature was found to be the most influential parameter on COD and VS solubilization. Biodegradability batch anaerobic tests confirmed results obtained on WAS solubilization, that is to say that 170 °C and 130 °C with pH = 10 were optimal conditions, with respectively 45% and 21% of anaerobic digestion enhancement. Thus these two conditions were chosen for sludge treatment before continuous anaerobic digestion. Results, after stabilization have shown a better efficiency of 170 °C compared with 130 °C with pH = 10 pre‐treatment, since after anaerobic digestion it led to 71% of COD degradation and 59% of Total Solids (TS) degradation, with an improvement of 54% in biogas production. The main differences between those two pre‐treatments could be due to the pre‐treatments themselves more than to an effect on anaerobic digestion, because the first one led to a partial loss of WAS COD (near 17% of initial COD) and the second one to an increase in TS due to addition of base. Copyright © 2004 Society of Chemical Industry
292 citations 292 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=10.1002/jctb.1106&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Valo, A.; Carrère, Hélène; Delgenès, Jean-Philippe;
Carrère, Hélène
Harvested from ORCID Public Data FileCarrère, Hélène in OpenAIREAbstractThe influence of different pre‐treatments was studied in order to observe the effects of temperature, pH and treatment time on Waste Activated Sludge (WAS) solubilization, and anaerobic digestion of pre‐treated sludge. Results showed that thermo‐chemical pre‐treatments were the most efficient on Chemical Oxygen Demand (COD) solubilization, which could reach 83% at 170 °C with pH = 12. Yet, increase in COD solubilization in thermo‐chemical pre‐treatment was not linked to an increase in soluble Volatile Solids (VS) as optimal conditions were 170 °C, and 130 °C with pH = 10, for this criterion. So, temperature was found to be the most influential parameter on COD and VS solubilization. Biodegradability batch anaerobic tests confirmed results obtained on WAS solubilization, that is to say that 170 °C and 130 °C with pH = 10 were optimal conditions, with respectively 45% and 21% of anaerobic digestion enhancement. Thus these two conditions were chosen for sludge treatment before continuous anaerobic digestion. Results, after stabilization have shown a better efficiency of 170 °C compared with 130 °C with pH = 10 pre‐treatment, since after anaerobic digestion it led to 71% of COD degradation and 59% of Total Solids (TS) degradation, with an improvement of 54% in biogas production. The main differences between those two pre‐treatments could be due to the pre‐treatments themselves more than to an effect on anaerobic digestion, because the first one led to a partial loss of WAS COD (near 17% of initial COD) and the second one to an increase in TS due to addition of base. Copyright © 2004 Society of Chemical Industry
292 citations 292 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=10.1002/jctb.1106&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu
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