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High Solid Anaerobic Co-Digestion of Household Organic Waste with Cow Manure for Mass and Energy Recovery
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High Solid Anaerobic Co-Digestion of Household Organic Waste with Cow Manure for Mass and Energy Recovery
Nuruljannah Khairuddin1, Latifah Abd Manaf1, Mohd Ali Hassan2, Normala Halimoon1, Wan Azlina Wan Ab Karim Ghani3
1Department of Environmental Sciences, Faculty of Environmental Studies, Universiti Putra Malaysia,
43400 UPM Serdang, Malaysia
2Department of Bioprocess Technology and Bimolecular Sciences, Faculty of Biotechnology and Molecules,
Universiti Putra Malaysia, 43400 UPM Serdang, Malaysia
3Department of Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia,
43400 UPM Serdang, Malalysia
Final revision date: 2016-02-19
Pol. J. Environ. Stud. 2016;25(4):1549–1554
High solid anaerobic digestion
This paper describes a batch study on four different mixture ratios of household organic waste and cow manure. The biomethane potential test is used to evaluate the suitability of high solid anaerobic co-digestion of household organic waste and cow manure and its biodegradability. The maximum methane yield was observed for both co-digestions in R3 (247 mL/g VS) and R4 (244 mL/g VS). The percentages of mass recovery were 65-80% (based on VS removal). The biodegradability of each reactor was recorded as 97.7%, 10.7%,71.6% and 76.8% for R1, R2, R3, and R4, respectively. High solid co-digestion of household organic waste and cow manure in different mixture ratios increase the specific methane yields compared to mono-digestion. Hence, this clearly demonstrates a synergistic effect on the stability of anaerobic digestion. Upon correcting the results of the theoretical method with experimental data, an agreement ranged 70-90% was achieved.
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