Assessment of potential biogas production from rice straw leachate in upflow anaerobic sludge blanket reactor

This study evaluates the potential of Rice Straw Leachate (RSL) to generate biogas and investigate its biodegradability by determining the differences between the theoretical yield and the actual one at its increasing organic loading rate. Seven litre working volume of Up-Flow Anaerobic Sludge Blank...

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Main Authors: Rosli, Nurul Shafiqah, Idrus, S., Nik Daud, N., Ahsan, A.
Format: Article
Language:English
Published: Engineering and Technology Publishing 2016
Online Access:http://psasir.upm.edu.my/id/eprint/55145/1/Assessment%20of%20potential%20biogas%20production%20from%20rice%20straw%20leachate%20in%20upflow%20anaerobic%20sludge%20blanket%20reactor.pdf
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author Rosli, Nurul Shafiqah
Idrus, S.
Nik Daud, N.
Ahsan, A.
author_facet Rosli, Nurul Shafiqah
Idrus, S.
Nik Daud, N.
Ahsan, A.
author_sort Rosli, Nurul Shafiqah
collection UPM
description This study evaluates the potential of Rice Straw Leachate (RSL) to generate biogas and investigate its biodegradability by determining the differences between the theoretical yield and the actual one at its increasing organic loading rate. Seven litre working volume of Up-Flow Anaerobic Sludge Blanket (UASB) reactor is employed under mesophilic condition at temperature of 38 for approximately 17 consecutive weeks. The process performance was evaluated based on the efficiency of COD removal and Specific Methane Production (SMP) in relation to the other parameters such as pH, Organic Loading Rate (OLR), Total Ammonia Nitrogen (TAN) and alkalinity ratio. The OLR were varied at 0.43, 0.55, 0.9 and 1.55g COD/L/d with average COD removal of 79%, 81.2%, 76.1%, and 75.8% respectively. The stability of anaerobic digestion of RSL in UASB was found maintained at an increasing OLR with indicator of pH, TAN and IA/PA ratio that always maintain in the range of 6.5-6.8, below 200mg/L and 0.3 respectively. Meanwhile, the optimum average SMP and COD removal efficiency were 0.18L CH4g-1CODrem and 81.2% respectively, at applied OLR of 0.55g COD/L/d. This study also revealed a relatively high deviation of SMP from its theoretical value, indicating its low degradability and the limitation of nutrient factors present in RSL.
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spelling upm.eprints-551452017-12-13T10:03:12Z http://psasir.upm.edu.my/id/eprint/55145/ Assessment of potential biogas production from rice straw leachate in upflow anaerobic sludge blanket reactor Rosli, Nurul Shafiqah Idrus, S. Nik Daud, N. Ahsan, A. This study evaluates the potential of Rice Straw Leachate (RSL) to generate biogas and investigate its biodegradability by determining the differences between the theoretical yield and the actual one at its increasing organic loading rate. Seven litre working volume of Up-Flow Anaerobic Sludge Blanket (UASB) reactor is employed under mesophilic condition at temperature of 38 for approximately 17 consecutive weeks. The process performance was evaluated based on the efficiency of COD removal and Specific Methane Production (SMP) in relation to the other parameters such as pH, Organic Loading Rate (OLR), Total Ammonia Nitrogen (TAN) and alkalinity ratio. The OLR were varied at 0.43, 0.55, 0.9 and 1.55g COD/L/d with average COD removal of 79%, 81.2%, 76.1%, and 75.8% respectively. The stability of anaerobic digestion of RSL in UASB was found maintained at an increasing OLR with indicator of pH, TAN and IA/PA ratio that always maintain in the range of 6.5-6.8, below 200mg/L and 0.3 respectively. Meanwhile, the optimum average SMP and COD removal efficiency were 0.18L CH4g-1CODrem and 81.2% respectively, at applied OLR of 0.55g COD/L/d. This study also revealed a relatively high deviation of SMP from its theoretical value, indicating its low degradability and the limitation of nutrient factors present in RSL. Engineering and Technology Publishing 2016-07 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/55145/1/Assessment%20of%20potential%20biogas%20production%20from%20rice%20straw%20leachate%20in%20upflow%20anaerobic%20sludge%20blanket%20reactor.pdf Rosli, Nurul Shafiqah and Idrus, S. and Nik Daud, N. and Ahsan, A. (2016) Assessment of potential biogas production from rice straw leachate in upflow anaerobic sludge blanket reactor. International Journal of Smart Grid and Clean Energy, 5 (3). pp. 135-143. ISSN 2315-4462; ESSN: 2373-3594 http://www.ijsgce.com/ 10.12720/sgce.5.3.135-143
spellingShingle Rosli, Nurul Shafiqah
Idrus, S.
Nik Daud, N.
Ahsan, A.
Assessment of potential biogas production from rice straw leachate in upflow anaerobic sludge blanket reactor
title Assessment of potential biogas production from rice straw leachate in upflow anaerobic sludge blanket reactor
title_full Assessment of potential biogas production from rice straw leachate in upflow anaerobic sludge blanket reactor
title_fullStr Assessment of potential biogas production from rice straw leachate in upflow anaerobic sludge blanket reactor
title_full_unstemmed Assessment of potential biogas production from rice straw leachate in upflow anaerobic sludge blanket reactor
title_short Assessment of potential biogas production from rice straw leachate in upflow anaerobic sludge blanket reactor
title_sort assessment of potential biogas production from rice straw leachate in upflow anaerobic sludge blanket reactor
url http://psasir.upm.edu.my/id/eprint/55145/1/Assessment%20of%20potential%20biogas%20production%20from%20rice%20straw%20leachate%20in%20upflow%20anaerobic%20sludge%20blanket%20reactor.pdf
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AT nikdaudn assessmentofpotentialbiogasproductionfromricestrawleachateinupflowanaerobicsludgeblanketreactor
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