次氯酸钠氧化法预处理乙炔清净废水的研究  

Research on the pre-treatment of acetylene purification wastewater by sodium hypochlorite oxidation method

作　　者：朱磊[1] 曹珍[1] 闫征楚 花修艺[1] 董德明[1] 孙文田[1] 梁大鹏[1] 郭志勇[1] 

机构地区：[1]吉林大学地下水与环境教育部重点实验室,水资源与水环境吉林省重点实验室,环境与资源学院,吉林长春130012

出　　处：《工业水处理》2016年第1期34-37,共4页Industrial Water Treatment

基　　金：国家水体污染控制与治理科技重大专项基金项目(2012ZX07202009);吉林省科技攻关计划重点项目(20140204035SF)

摘　　要：采用次氯酸钠(Na Cl O)氧化法对乙炔清净废水进行预处理。分别考察了废水的p H、温度、Na Cl O溶液加入量和反应时间对废水中NH3-N和COD去除率的影响,用正交实验的方法确定了NH3-N的最佳处理条件。结果表明,Na Cl O溶液加入量对NH3-N去除率的影响最大,其次是废水的温度和p H,反应时间的影响最小,对于200 m L的废水,最佳处理条件为:废水的p H为8、温度为50℃、Na Cl O溶液加入量为5.5 m L、反应时间为5 min。此时NH3-N、COD和TN的去除率分别为99.8%、51.9%和90.9%,游离氯的剩余量很低。Sodium hypochlorite （NaClO） oxidation has been applied to the treatment of acetylene purification waste- water from chlor-alkali industry. The effects of pH value, temperature, dosage of NaClOsolution and reaction time on the removal of NH3-N and COD from wastewater have been investigated. In addition,the optimal treatment conditions of NH3-N are fixed by orthogonal tests. The results show that the volume fraction of adding NaClO solution has the greatest effect on NH3-N removing rate, temperature and pH of the wastewater have the second great effect, and reaction time has the least effect. For 200 mL of wastewater,the optimal treatment conditions are as follow ： pH 8, temperature 50 ℃, NaC10 dosage 5.5 mL and reaction time 5 min. Under these conditions, the removing rates of NH3-N, COD and TN are 99.8%, 51.9% and 90.9% ,respectively, and the residual content of free chlorine in the effluent is quite low.

关 键 词：次氯酸钠氧化法 乙炔清净废水 氨氮 影响因素 

分 类 号：X703.1[环境科学与工程—环境工程]