净水技术Issue(3)：58-64,7.
印染废水厌氧水解过程挥发性脂肪酸的产生及影响因素
Generation and Influencing Factors of Volatile Fatty Acids in Process of Anaerobic Hydrolysis for Printing and Dyeing Wastewater Treatment
摘要
Abstract
For the low B/C ratio,lack of high-quality carbon source for denitrification and other problems of dyeing and printing wastewater,concentration and components of volatile fatty acids in dyeing wastewater effluent at different HRT and temperature in the process of anaerobic hydrolysis were studied. The results showed that the optimal HRT for dyeing wastewater was 15 h. The concentration of VFAs was up to 472. 1 mg/L,in which acetic acid accounted for 86. 5%. Compared to low temperature,VFAs were preferable in mesophilic anaerobic condition,but changes in temperature had little impact on the component of VFAs. For pre-treatment wastewater,the optimal HRT was 60 h,the concentration of VFAs in anaerobic effluent was up to 692. 4 mg/L. Reasonable concentration of VFAs produced in anaerobic process can provide high-quality carbon source for subsequent denitrification units,and thus lay the foundation for the reduction of total nitrogen of dyeing and printing wastewater.关键词
印染废水/UASB/挥发性有机酸/厌氧水解Key words
printing and dyeing wastewater/up-flow anaerobic sludge bed (UASB )/volatile fatty acid (VFAs )/anaerobic hydrolysis分类
建筑与水利引用本文复制引用
操家顺,唐思远,李超,周彬宇..印染废水厌氧水解过程挥发性脂肪酸的产生及影响因素[J].净水技术,2014,(3):58-64,7.基金项目
国家水体污染控制与治理科技重大专项 （）
