电解预处理-UASB-CASS工艺处理糠醛废水  

Treatment of furfural wastewater with electrolytic pre-treatment-UASB-CASS

作　　者：栾富波[1] 李善评[2] 赵玉晓[2] 王旭东[2] 

机构地区：[1]同济大学污染控制与资源化研究国家重点实验室,上海200092 [2]山东大学环境科学与工程学院,济南250100

出　　处：《环境工程学报》2007年第9期67-71,共5页Chinese Journal of Environmental Engineering

摘　　要：对电解预处理-UASB-CASS工艺处理糠醛废水进行了研究,通过试验确定了电解预处理阶段主要影响因素为电流强度大小和电解时间,极板间距对COD去除率影响不大;电解预处理最佳工艺参数为:电流强度0.3 A,电解时间4 h,极板间距30 mm。在此条件下COD去除率为20.6%,废水可生化性提高了38.1%。加上后续的UASB-CASS工艺,出水COD浓度<150 mg/L,满足《污水综合排放标准》(GB8978-1996)二级排放标准。The treatment of furfural wastewater was studied in this paper. The main influencing factors of pretreatment were current density and electrolytic time while electrode distance had little effect on COD removal rate. The best parameter of electrolytic pre-treatment was ： current intensity 0. 3 A, electrolytic time 4h and electrode distance 30 ram. The COD removal rate was 20. 6% and the biodegradability of the wastewater increased 38. 1% under this condition. Added latter process of UASB-CASS, the COD concentraion of effluent was below 150 mg/L which can meet second order of Comprehensive Sewage Discharge Standards（GB8978-1996）.

关 键 词：糠醛废水 电解预处理 正交试验 运行参数 

分 类 号：X703.1[环境科学与工程—环境工程]