次氯酸钠氧化法深度处理造纸废水试验研究  

Experimental Study on Advanced Treatment of Papermaking Wastewater by NaClO Process

作　　者：陆贤[1] 刘伟京[2] 涂勇[2] 郭方峥[2] 李燕[1] 解林[1] 

机构地区：[1]中国矿业大学江苏省资源环境信息工程重点实验室,江苏徐州221116 [2]江苏省环境科学研究院,江苏南京210036

出　　处：《环境科学与技术》2011年第3期90-92,133,共4页Environmental Science & Technology

基　　金：国家重大科技专项"水体污染控制与治理"课题(2008ZX07101-003-005;2008ZX07313-005)

摘　　要：为解决出水COD和色度不达标的问题,采用次氯酸钠氧化法深度处理无锡某造纸厂的二级生化出水。考察了废水初始pH、NaClO加入量、反应时间及温度对COD和色度去除率的影响。实验结果表明在次氯酸钠投加量为1.6 mL/L、pH为9、反应时间为40 min、温度为35℃时,COD的去除率可以达到50%,色度的去除率为87.7%。出水COD和色度完全可以达到新的排放标准DB32/1072-2007。Since CODcr and color of effluent water are difficult to satisfy the new emission standards,the secondary biochemical effluent water from a paper mill in Wuxi,Jiangsu Province was advanced treated by NaClO process.Effects of initial pH,NaClO dosage and reaction time and temperature on removal rate of CODcr and chrome were studied.Results indicated that under the conditions of pH 9,NaClO dosage 1.6 mL/L,reaction time 40min and temperature 35 ℃,removal rate of CODcr was 50%,and removal rate of color was 87.7%,which all can meet the new emission standard of DB32/1072-2007.

关 键 词：NACLO 氧化 造纸废水 

分 类 号：X703.1[环境科学与工程—环境工程]