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- Title
Application of A/O-MBR for treatment of digestate from anaerobic digestion of cow manure.
- Authors
Gong, Weijia; Li, Wenzhe; Liang, Heng
- Abstract
Anaerobic digestion (AD) is widely used as an animal manure bioconversion technology. However, the effluent obtained from the digester during the wet-AD process requires to be treated carefully before discharge if AD technology is to be developed as an effective and environmentally advantageous animal manure treatment. An anoxic/aerobic-membrane bioreactor(A/O-MBR) system has been developed for digestate treatment in an AD system treating cow manure. The performance of the A/O-MBR system in terms of removal of nitrogen, COD and phosphorus were investigated. Results indicated that the average removal efficiencies of NH-N, COD and PO-P were 98.1%, 96.3% and 76.6%, respectively. The fouled membrane from the A/O-MBR system was cleaned effectively using NaOH and a 30h soak time. This study suggests that it is technically feasible to use the A/O-MBR for the treatment of digestate from a cow manure AD system, and can provide an environmentally acceptable way for the application of wet-AD in animal manure treatment. Copyright © 2010 Society of Chemical Industry
- Publication
Journal of Chemical Technology & Biotechnology, 2010, Vol 85, Issue 10, p1334
- ISSN
0268-2575
- Publication type
Article
- DOI
10.1002/jctb.2437