The aim of this study was to evaluate the behavior of an anaerobic reactor of packed-bed and continuous flow, in relation to the biogas and methane production and the removal of organic load, from the wastewater of cassava starch extraction.For this purpose, were tested, in a reactor with a useful volume of 2.82 L and support mean of polypropylene filled with polyethylene foam, the organic loading rate (OLR) of 2.5, 5.0, 8.0 and 10.0 g L -1 d -1 .It was evaluated the removal of COD, the pH, the VA/TA ratio, the biogas and the methane production.It was concluded from this study that it is possible to produce biogas with methane percentages higher than 80% (maximum) and remove the organic load more than 90% under the tested conditions.In relation to stability, the reactor can be considered stable for the parameters, pH, the relationship between volatile acidity and total alkalinity and organic load removal.The best results in relation to the average volumetric biogas production (0.174 and 0.311 L g COD -1 ) were obtained for the higher organic loading rate (of 8 and 10 g L -1 d -1 , respectively) and the observed tendency is that with the increase of the organic loading rate, the specific biogas production will increase as well as the specific production of methane.

The aim of this study was to evaluate the behavior of an anaerobic reactor of packed-bed and continuous flow, in relation to the biogas and methane production and the removal of organic load, from the wastewater of cassava starch extraction.For this purpose, were tested, in a reactor with a useful volume of 2.82 L and support mean of polypropylene filled with polyethylene foam, the organic loading rate (OLR) of 2.5, 5.0, 8.0 and 10.0 g L -1 d -1 .It was evaluated the removal of COD, the pH, the VA/TA ratio, the biogas and the methane production.It was concluded from this study that it is possible to produce biogas with methane percentages higher than 80% (maximum) and remove the organic load more than 90% under the tested conditions.In relation to stability, the reactor can be considered stable for the parameters, pH, the relationship between volatile acidity and total alkalinity and organic load removal.The best results in relation to the average volumetric biogas production (0.174 and 0.311 L g COD -1 ) were obtained for the higher organic loading rate (of 8 and 10 g L -1 d -1 , respectively) and the observed tendency is that with the increase of the organic loading rate, the specific biogas production will increase as well as the specific production of methane.

The aim of this study was to evaluate the behavior of anaerobic reactor of packed-bed and continuous flow, in relation to the biogas and methane production and the removal of organic load, from the wastewater of cassava starch extraction.For this purpose, were tested, in a reactor with a useful volume of 2.82 L and support mean of polypropylene filled with polyethylene foam, the organic loading rate (OLR) of 2.5, 5.0, 8.0 and 10.0 g L -1 d -1 .It was evaluated the removal of COD, the pH, the VA/TA ratio, the biogas and the methane production.It was concluded from this study that it is possible to produce biogas with methane percentages higher than 80% (maximum) and remove the organic load more than 90% under the tested conditions.In relation to stability, the reactor can be considered stable for the parameters, pH, the relationship between volatile acidity and total alkalinity and organic load removal.The best results in relation to the average volumetric biogas production (0.174 and 0.311 L g COD -1 ) were obtained for the higher organic loading rate (of 8 and 10 g L -1 d -1 , respectively) and the observed tendency is that with the increase of the organic loading rate, the specific biogas production will increase as well as the specific production of methane.

The aim of this study was to evaluate the behavior of anaerobic reactor of packed-bed and continuous flow, in relation to the biogas and methane production and the removal of organic load, from the wastewater of cassava starch extraction.For this purpose, were tested, in a reactor with a useful volume of 2.82 L and support mean of polypropylene filled with polyethylene foam, the organic loading rate (OLR) of 2.5, 5.0, 8.0 and 10.0 g L -1 d -1 .It was evaluated the removal of COD, the pH, the VA/TA ratio, the biogas and the methane production.It was concluded from this study that it is possible to produce biogas with methane percentages higher than 80% (maximum) and remove the organic load more than 90% under the tested conditions.In relation to stability, the reactor can be considered stable for the parameters, pH, the relationship between volatile acidity and total alkalinity and organic load removal.The best results in relation to the average volumetric biogas production (0.174 and 0.311 L g COD -1 ) et la tendance observée est que, avec l'augmentation du taux de charge organique, la production spécifique de biogaz augmentera comme la production spécifique de méthane.

كان الهدف من هذه الدراسة هو تقييم سلوك مفاعل لاهوائي ذو سرير معبأ وتدفق مستمر، فيما يتعلق بإنتاج الغاز الحيوي والميثان وإزالة الحمل العضوي، من مياه الصرف الصحي لاستخراج نشا المنيهوت. لهذا الغرض، تم اختباره، في مفاعل بحجم مفيد 2.82 لتر ومتوسط دعم من البولي بروبلين المملوء برغوة البولي إيثيلين، معدل التحميل العضوي (OLR) 2.5 و 5.0 و 8.0 و 10.0 جم L -1 d -1. تم تقييم إزالة COD، الأس الهيدروجيني ونسبة VA/TA والغاز الحيوي وإنتاج الميثان. استنتج من هذه الدراسة أنه من الممكن إنتاج الغاز الحيوي بنسب ميثان أعلى من 80 ٪ (كحد أقصى) وإزالة الحمل العضوي أكثر من 90 ٪ في ظل الظروف المختبرة. فيما يتعلق بالاستقرار، يمكن اعتبار المفاعل مستقرًا للمعلمات، الأس الهيدروجيني، العلاقة بين الحموضة المتطايرة والقلوية الكلية وإزالة الحمل العضوي. أفضل النتائج فيما يتعلق بمتوسط إنتاج الغاز الحيوي الحجمي (0.174 و 0.311 لتر من COD -1 ) لمعدل التحميل العضوي الأعلى (8 و 10 جم L -1 d -1 ، على التوالي) والميل الملحوظ هو أنه مع زيادة معدل التحميل العضوي، سيزداد إنتاج الغاز الحيوي المحدد بالإضافة إلى الإنتاج المحدد للميثان.