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Influence of Continuous Flow Microwave Pre-Treatment on Anaerobic Digestion of Secondary Thickened Sludge for Sustainable Energy Recovery in Sewage Treatment Plant

Anaerobic digestion; Biogas; Chemical oxygen demand; Energy conservation; Fatty acids; Irradiation; Microwave irradiation; Microwaves; River pollution; Secondary recovery; Sewage sludge; Sewage treatment plants; Volatile fatty acids; Biogas production; Biogas quantities; Continuous flows; Irradiatio...

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Main Authors: Hephzibah D., Kumaran P., Saifuddin N.M.
Other Authors: 57016785600
Format: Conference Paper
Published: Institute of Physics Publishing 2023
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spelling my.uniten.dspace-227742023-05-29T14:12:10Z Influence of Continuous Flow Microwave Pre-Treatment on Anaerobic Digestion of Secondary Thickened Sludge for Sustainable Energy Recovery in Sewage Treatment Plant Hephzibah D. Kumaran P. Saifuddin N.M. 57016785600 56803626200 22135844300 Anaerobic digestion; Biogas; Chemical oxygen demand; Energy conservation; Fatty acids; Irradiation; Microwave irradiation; Microwaves; River pollution; Secondary recovery; Sewage sludge; Sewage treatment plants; Volatile fatty acids; Biogas production; Biogas quantities; Continuous flows; Irradiation time; Microwave power levels; Pre-Treatment; Soluble chemical oxygen demands; Sustainable energy; Sludge digestion; anoxic conditions; biogas; chemical oxygen demand; concentration (composition); digestibility; experimental study; fatty acid; irradiation; pollutant removal; power generation; sewage; sewage treatment; sludge; solubility This work elucidates the effects of pre-treatment of secondary thickened sludge (STS) for enhancement of biogas production that has great potential to generate energy for the utilization of the sewage treatment plant (STP) itself. Microwave pre-treatment has been adopted for this study. Experiment works have been designed and conducted to examine the effectiveness of continuous flow microwave pre-treatment on the solubility of STS, digestibility of STS and biogas production at a power level of 80 W for 5, 10 and 15 minutes. A few characteristics of the sewage sludge were monitored daily to identify the effect of pre-treatment on the sludge. The soluble chemical oxygen demand (SCOD)/total chemical oxygen demand (TCOD) ratio increased by 0.1, 1.0 and 1.8%, while the volatile fatty acids (VFA) concentration of the pre-treated sludge improved by 4.4, 5.1, 5.9% at the irradiation time of 5, 10 and 15 minutes, respectively at a microwave power level of 80 W. Besides that, the digestate also indicates that the pre-treated sludge undergoes efficient VS removal and TCOD removal after anaerobic digestion compared to the untreated sludge. Moreover, the biogas quantity increased by an average of 19.2, 24.1 and 32.2% in 5, 10 and 15 minutes irradiation time respectively compared to the untreated sludge. The additional quantity of biogas generated has shown a great potential for sustainable energy generation that can be utilized internally by the STP. Final 2023-05-29T06:12:10Z 2023-05-29T06:12:10Z 2016 Conference Paper 10.1088/1755-1315/32/1/012004 2-s2.0-84966569818 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84966569818&doi=10.1088%2f1755-1315%2f32%2f1%2f012004&partnerID=40&md5=579943ad7991133b27432b8a879ede9d https://irepository.uniten.edu.my/handle/123456789/22774 32 1 12004 All Open Access, Gold Institute of Physics Publishing Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
description Anaerobic digestion; Biogas; Chemical oxygen demand; Energy conservation; Fatty acids; Irradiation; Microwave irradiation; Microwaves; River pollution; Secondary recovery; Sewage sludge; Sewage treatment plants; Volatile fatty acids; Biogas production; Biogas quantities; Continuous flows; Irradiation time; Microwave power levels; Pre-Treatment; Soluble chemical oxygen demands; Sustainable energy; Sludge digestion; anoxic conditions; biogas; chemical oxygen demand; concentration (composition); digestibility; experimental study; fatty acid; irradiation; pollutant removal; power generation; sewage; sewage treatment; sludge; solubility
author2 57016785600
author_facet 57016785600
Hephzibah D.
Kumaran P.
Saifuddin N.M.
format Conference Paper
author Hephzibah D.
Kumaran P.
Saifuddin N.M.
spellingShingle Hephzibah D.
Kumaran P.
Saifuddin N.M.
Influence of Continuous Flow Microwave Pre-Treatment on Anaerobic Digestion of Secondary Thickened Sludge for Sustainable Energy Recovery in Sewage Treatment Plant
author_sort Hephzibah D.
title Influence of Continuous Flow Microwave Pre-Treatment on Anaerobic Digestion of Secondary Thickened Sludge for Sustainable Energy Recovery in Sewage Treatment Plant
title_short Influence of Continuous Flow Microwave Pre-Treatment on Anaerobic Digestion of Secondary Thickened Sludge for Sustainable Energy Recovery in Sewage Treatment Plant
title_full Influence of Continuous Flow Microwave Pre-Treatment on Anaerobic Digestion of Secondary Thickened Sludge for Sustainable Energy Recovery in Sewage Treatment Plant
title_fullStr Influence of Continuous Flow Microwave Pre-Treatment on Anaerobic Digestion of Secondary Thickened Sludge for Sustainable Energy Recovery in Sewage Treatment Plant
title_full_unstemmed Influence of Continuous Flow Microwave Pre-Treatment on Anaerobic Digestion of Secondary Thickened Sludge for Sustainable Energy Recovery in Sewage Treatment Plant
title_sort influence of continuous flow microwave pre-treatment on anaerobic digestion of secondary thickened sludge for sustainable energy recovery in sewage treatment plant
publisher Institute of Physics Publishing
publishDate 2023
_version_ 1806425728361693184
score 13.209306

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