臭氧氧化法深度处理印染废水生化处理出水  

Advanced Treatment of Bio-treated Dyeing Wastewater by Ozone Oxidation Process

作　　者：李昊[1,2] 周律[1] 李涛[1] 邢丽贞[2] 

机构地区：[1]清华大学环境学院,北京100084 [2]山东建筑大学市政与环境工程学院,山东济南250101

出　　处：《化工环保》2012年第1期30-34,共5页Environmental Protection of Chemical Industry

基　　金：国家水体污染控制与治理科技重大专项基金资助项目(2008ZX07313-005)

摘　　要：采用臭氧氧化法深度处理印染废水生化处理出水。实验结果表明,在进气流量为2.5 L/min、进气中臭氧质量浓度为12.5 mg/L、臭氧通气时间为30 min、后续反应时间为30 min的条件下,废水的COD去除率约为40%,色度去除率大于95%,处理后废水色度小于5倍,COD为45～70 mg/L,BOD5为10～13 mg/L,BOD5/COD=0.2,出水可生化性有所提高。三维荧光光谱分析和相对分子质量分布检测结果表明,臭氧氧化处理后废水中相对分子质量较大的物质被降解为相对分子质量较小的物质。Bio-treated dyeing wastewater was treated by ozone oxidation process. The experimental results show that under the conditions of gas flow 2.5 L/min, ozone mass conceatration 12.5 mg/L, ozone aeration time 30 min and subsequent reaction time 30 min, the removal rates of COD and chroma are about 40% and above 95%, the effluent chroma is less than 5 times, the COD and BOD5 are 45 - 70 mg/L and 10 - 13 mg/L respectively, BOD5/COD = 0.2, which indicates that the biodegradability of the wastewater is improved. The analysis results of three-dimensional fluorescence spectrum and relative molecular mass distribution show that the macromolecular substances in the wastewater are degraded into smaller molecules.

关 键 词：臭氧氧化 印染废水 深度处理 三维荧光光谱 废水处理 

分 类 号：X703[环境科学与工程—环境工程]