DOIONLINE 
DOIONLINE Publish In |
International Journal of Advances in Science, Engineering and Technology(IJASEAT)-IJASEAT |
 Journal Home Volume Issue |
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Issue |
Volume-4,Issue-1 ( Jan, 2016 ) | |||||||||
Paper Title |
Co-Digestion Of Cattle Manure And Sewage Sludge – Effects On Biodegradation Rates | |||||||||
Author Name |
Renata D’arc Coura, Ana Ferraz, Ana Cristina Rodrigues | |||||||||
Affilition |
School of Agriculture of Polytechnic Institute of Viana do Castelo, Portugal | |||||||||
Pages |
88-91 | |||||||||
Abstract |
Anaerobic digestion of cattle manure (CM) as single substrate and the co-digestion with sewage sludge wastewater (SSW) was conducted at mesophilic temperature (35ºC) to investigate the feasibility of the co-digestion process. The anaerobic co-digestion of CM with SSW provided a higher removal efficiency in terms of total COD (60%) when compared to anaerobic digestion of CM or SSW. However, the high values of the ratio tCOD/TKN suggest that the C/N ratio may not be proper for the biomethanation process. The organic matter biodegradation rate observed for co-digestion of SSW and CM was 0.13±0.02gO2 gVSS-1 d-1, higher than single-digestions of CM and SSW. The results obtained suggest that anaerobic co-digestion of cattle manure and sewage sludge, at mesophilic condition (35ºC), is a viable solution in terms of increased biodegradability of substrates, seeking higher quality and quantity of biogas produced. Keywords- Anaerobic digestion, Biogas, Biodegradability, Cattle manure, Sewage sludge. | |||||||||
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