Addition of Cow Urine and Cheese Whey as Nitrogen Source on the Biogas Production from Cow Manure

Setyopratomo, Puguh (2013) Addition of Cow Urine and Cheese Whey as Nitrogen Source on the Biogas Production from Cow Manure. In: 1st International Conference on Chemical, Nano & Sustainable Engineering – ICCNSE’13, 29 – 31 March 2013, Kuala Lumpur, Malaysia.

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Abstract

Biogas is a potential renewable energy source due to its high methane content and caloric value. Cow manure is a good substrate to produce biogas. In this research work the addition of nitrogen source from cow urine and cheese whey in the production of biogas from cow manure was observed. The purpose of this research was to investigate the effect of the addition of the nitrogen sources to the quantity and the quality of biogas generated. The experiments were conducted in batch reactor and substrate composition was varied. The biogas and methane yield and some volatile fatty acids concentration were used as the main observed parameters, while analysis was also performed to investigate the pH change and COD removal in the residual substrate. The research result showed 37.9% COD reduction was reached. The obtained biogas yield were in the range of 13.7 – 150.4 liter/(kg VS), while the methane yield was in the range of 1.23 – 14.92 liter/(kg VS). The volatile fatty acids detected in the biogas, which consist of butyric, acetic and propionic acid, showed a low concentrations and found the concentration of acetic acid is the highest. A relatively high decrease in pH was observed in the mixture with relatively high C/N ratio. Keywords: anaerobic; biogas; cow manure; cow urine; cheese whey

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	anaerobic; biogas; cow manure; cow urine; cheese whey
Subjects:	Q Science > QD Chemistry
Divisions:	Faculty of Engineering > Department of Chemical Engineering
Depositing User:	Ester Sri W. 196039
Date Deposited:	29 Nov 2021 07:17
Last Modified:	29 Nov 2021 07:17
URI:	http://repository.ubaya.ac.id/id/eprint/40767

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