Document Detail


Control of C/N ratio for butyric acid production from textile wastewater sludge by anaerobic digestion.
MedLine Citation:
PMID:  22339023     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Increasing textile wastewaters and their biotreatment byproduct-waste activated sludge are serious pollution problems. Butyric acid production from textile wastewater sludge by anaerobic digestion at different C/N ratios was investigated. Adding starch to textile wastewater sludge with a C/N ratio of 30 increased the butyric acid concentration and percentage accounting for total volatile fatty acids (TVFAs) to 21.42 g/L and 81.5%, respectively, as compared with 21.42 g/L and 10.6% of textile wastewater sludge alone. The maximum butyric acid yield (0.45 g/g VS), conversion rate (0.74 g/g VS(digest)) and production rate (2.25 g/L d) was achieved at a C/N ratio of 30. The biological toxicity of textile wastewater sludge also significantly decreased after the anaerobic digestion. The study indicated that the anaerobic co-digestion of textile wastewater sludge and carbohydrate-rich waste with appropriate C/N ratio is possible for butyric acid production.
Authors:
Bo Fu; Jingjing Zhang; Jinfeng Fan; Jin Wang; He Liu
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Water science and technology : a journal of the International Association on Water Pollution Research     Volume:  65     ISSN:  0273-1223     ISO Abbreviation:  Water Sci. Technol.     Publication Date:  2012  
Date Detail:
Created Date:  2012-02-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9879497     Medline TA:  Water Sci Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  883-9     Citation Subset:  IM    
Affiliation:
Laboratory of Environmental Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China E-mail: liuhe@jiangnan.edu.cn.
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