Fenton氧化/PAC吸附工艺深度处理焦化蒸氨废水  

Advanced Treatment of Coking Ammonia Stripping Wastewater by Fenton Oxidation/PAC Adsorption Process

作　　者：常银宗[1] 魏宏斌[1] 陈良才 陈辉洋 唐秀华 

机构地区：[1]同济大学环境科学与工程学院,上海200092 [2]上海中耀环保实业有限公司,上海200092

出　　处：《中国给水排水》2012年第11期75-78,共4页China Water & Wastewater

基　　金：国家自然科学基金资助项目(51071186)

摘　　要：以焦化蒸氨废水经生物处理后的二沉池出水为处理对象,研究了Fenton氧化/粉末活性炭(PAC)吸附工艺对其深度处理效果及影响因素。结果表明,Fenton氧化/PAC吸附工艺对该废水的深度处理效果较好,在进水COD为298.8 mg/L、UV254为5.74 cm-1、色度为600倍的条件下,对COD和UV254的去除率可分别达到72.9%和88.8%,出水COD可降至81.38 mg/L,色度降至5倍,达到了《钢铁工业水污染物排放标准》(GB 13456—92)的一级标准。Fe2+/H2O2值、Fenton反应和PAC吸附时间、H2O2和PAC投加量、初始pH值、水温等对组合工艺的深度处理效果均有一定的影响。The efficiency and influencing factors in advanced treatment of coking ammonia strip- ping wastewater by Fenton oxidation/PAC adsorption process were investigated. Secondary effluent of co- king ammonia stripping wastewater after biological treatment was used. The results showed that Fenton ox- idation/PAC adsorption process obtained high treatment efficiency of eoking ammonia stripping wastewater. When the influent COD, UV254 and color were 298.8 rag/L, 5.74 cm-I and 600 times, re- spectively, the removal rates of COD and UV254 were 72.9% and 88.8% , respectively. The effluent COD and color decreased to 81.38 mg/L and 5 times, respectively, meeting the first class criteria speci- fied in the Discharge Standard of Water Pollutants for Iron and Steel Industry （GB 13456 -92）. The ad- vanced treatment efficiency of the combined process was affected by Fe2＋/H2O2 ratio, reaction times of Fenton oxidation and PAC adsorption, dosage of H2O2 and PAC, initial pH values and temperature.

关 键 词：焦化蒸氨废水 FENTON氧化 粉末活性炭吸附 深度处理 影响因素 

分 类 号：X703[环境科学与工程—环境工程]