Determining the Optimum Proportions of Cassava Starch Wastewater, Hydrogenic Effluent and Anaerobic Sludge for Methane Production

The optimum proportions of cassava starch wastewater, hydrogenic effluent and anaerobic sludge for batch methane production were determined using D-optimal mixture design. The optimum percentage ratio of cassava starch wastewater: hydrogenic effluent: anaerobic sludge was 7.60 : 16.67 : 75.73 at vol...

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Main Authors: Parichat Wadjeam, Alissara Reungsang
Format: บทความวารสาร
Language:English
Published: Science Faculty of Chiang Mai University 2019
Online Access:http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=9655
http://cmuir.cmu.ac.th/jspui/handle/6653943832/64228
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Institution: Chiang Mai University
Language: English
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spelling th-cmuir.6653943832-642282019-05-07T09:59:53Z Determining the Optimum Proportions of Cassava Starch Wastewater, Hydrogenic Effluent and Anaerobic Sludge for Methane Production Parichat Wadjeam Alissara Reungsang The optimum proportions of cassava starch wastewater, hydrogenic effluent and anaerobic sludge for batch methane production were determined using D-optimal mixture design. The optimum percentage ratio of cassava starch wastewater: hydrogenic effluent: anaerobic sludge was 7.60 : 16.67 : 75.73 at volatile solid (VS) of 60 g/L which resulted in the highest methane yield (MY) of 108.3 mL CH4/g-VS. Enhancement of methane production was attempted by supplementing with modified basal medium and modified basic anaerobic (BA) medium. Addition of modified BA medium enhanced MY by 8.28% (113.7 mL CH4/g-VS) in comparison to a control (without media addition). However, no improvement in MY was observed when using modified basal medium. Replacement of yeast extract by soybean and fish meal at the same total nitrogen concentration in modified BA medium, the differences on MY were only 3.58 % and 4.36% , respectively, indicating that soybean and fish meal can be used as cheaper alternative organic nitrogen sources for methane production. 2019-05-07T09:59:53Z 2019-05-07T09:59:53Z 2018 บทความวารสาร 0125-2526 http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=9655 http://cmuir.cmu.ac.th/jspui/handle/6653943832/64228 Eng Science Faculty of Chiang Mai University
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description The optimum proportions of cassava starch wastewater, hydrogenic effluent and anaerobic sludge for batch methane production were determined using D-optimal mixture design. The optimum percentage ratio of cassava starch wastewater: hydrogenic effluent: anaerobic sludge was 7.60 : 16.67 : 75.73 at volatile solid (VS) of 60 g/L which resulted in the highest methane yield (MY) of 108.3 mL CH4/g-VS. Enhancement of methane production was attempted by supplementing with modified basal medium and modified basic anaerobic (BA) medium. Addition of modified BA medium enhanced MY by 8.28% (113.7 mL CH4/g-VS) in comparison to a control (without media addition). However, no improvement in MY was observed when using modified basal medium. Replacement of yeast extract by soybean and fish meal at the same total nitrogen concentration in modified BA medium, the differences on MY were only 3.58 % and 4.36% , respectively, indicating that soybean and fish meal can be used as cheaper alternative organic nitrogen sources for methane production.
format บทความวารสาร
author Parichat Wadjeam
Alissara Reungsang
spellingShingle Parichat Wadjeam
Alissara Reungsang
Determining the Optimum Proportions of Cassava Starch Wastewater, Hydrogenic Effluent and Anaerobic Sludge for Methane Production
author_facet Parichat Wadjeam
Alissara Reungsang
author_sort Parichat Wadjeam
title Determining the Optimum Proportions of Cassava Starch Wastewater, Hydrogenic Effluent and Anaerobic Sludge for Methane Production
title_short Determining the Optimum Proportions of Cassava Starch Wastewater, Hydrogenic Effluent and Anaerobic Sludge for Methane Production
title_full Determining the Optimum Proportions of Cassava Starch Wastewater, Hydrogenic Effluent and Anaerobic Sludge for Methane Production
title_fullStr Determining the Optimum Proportions of Cassava Starch Wastewater, Hydrogenic Effluent and Anaerobic Sludge for Methane Production
title_full_unstemmed Determining the Optimum Proportions of Cassava Starch Wastewater, Hydrogenic Effluent and Anaerobic Sludge for Methane Production
title_sort determining the optimum proportions of cassava starch wastewater, hydrogenic effluent and anaerobic sludge for methane production
publisher Science Faculty of Chiang Mai University
publishDate 2019
url http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=9655
http://cmuir.cmu.ac.th/jspui/handle/6653943832/64228
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