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Mohd Johari SA, Mahad Nasir MM, Ali S, Hamza A, Aleem W, Ameen M, Aqsha A. Recent Technology Developments in Biogas Production from Waste Materials in Malaysia. CHEMBIOENG REVIEWS 2021. [DOI: 10.1002/cben.202100016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Siti Aminah Mohd Johari
- Universiti Teknologi PETRONAS Higher Institution Centre of Excellence (HiCoE) Centre for Biofuel and Biochemical Research (CBBR) Institute of Sustainable Living (ISB) 32610 Seri Iskandar Malaysia
- Universiti Teknologi PETRONAS Department of Chemical Engineering 32610 Seri Iskandar Malaysia
| | | | - Sundas Ali
- University of Punjab Institute of Chemical Engineering and Technology 54590 Lahore Pakistan
| | - Ameer Hamza
- University of Punjab Institute of Chemical Engineering and Technology 54590 Lahore Pakistan
| | - Waqas Aleem
- Mir Chakar Khan Rind University of Technology Department of Chemical Engineering & Technology Dera Ghazi Khan Pakistan
| | - Mariam Ameen
- Universiti Teknologi PETRONAS Higher Institution Centre of Excellence (HiCoE) Centre for Biofuel and Biochemical Research (CBBR) Institute of Sustainable Living (ISB) 32610 Seri Iskandar Malaysia
- Universiti Teknologi PETRONAS Department of Chemical Engineering 32610 Seri Iskandar Malaysia
| | - Aqsha Aqsha
- Institut Teknologi Bandung Department of Bioenergy and Chemurgy Engineering, Faculty of Technology Industry 45363 Bandung Indonesia
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Effect of Mixing Regimes on Cow Manure Digestion in Impeller Mixed, Unmixed and Chinese Dome Digesters. ENERGIES 2019. [DOI: 10.3390/en12132540] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study examines the effect of mixing on the performance of anaerobic digestion of cow manure in Chinese dome digesters (CDDs) at ambient temperatures (27–32 °C) in comparison with impeller mixed digesters (STRs) and unmixed digesters (UMDs) at the laboratory scale. The CDD is a type of household digester used in rural and pre-urban areas of developing countries for cooking. They are mixed by hydraulic variation during gas production and gas use. Six digesters (two of each type) were operated at two different influent total solids (TS) concentration, at a hydraulic retention time (HRT) of 30 days for 319 days. The STRs were mixed at 55 rpm, 10 min/hour; the unmixed digesters were not mixed, and the Chinese dome digesters were mixed once a day releasing the stored biogas under pressure. The reactors exhibited different specific biogas production and treatment efficiencies at steady state conditions. The STR 1 exhibited the highest methane (CH4) production and treatment efficiency (volatile solid (VS) reduction), followed by STR 2. The CDDs performed better (10% more methane) than the UMDs, but less (approx. 8%) compared to STRs. The mixing regime via hydraulic variation in the CDD was limited despite a higher volumetric biogas rate and therefore requires optimization.
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Okudoh V, Trois C, Workneh T, Schmidt S. The potential of cassava biomass and applicable technologies for sustainable biogas production in South Africa: A review. RENEWABLE AND SUSTAINABLE ENERGY REVIEWS 2014; 39:1035-1052. [DOI: 10.1016/j.rser.2014.07.142] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
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