氧化剂用于垃圾渗滤液预处理的研究  

Study on Pretreatment of Landfill Leachate by Oxidation Process

作　　者：张胜利[1] 刘书[1] 刘丹[1] 马萌[1] 

机构地区：[1]西南交通大学环境科学与工程学院,四川成都610031

出　　处：《安徽农业科学》2010年第24期13333-13334,13336,共3页Journal of Anhui Agricultural Sciences

基　　金：西南交通大学青年教师科研起步项目(2009Q027)

摘　　要：[目的]为垃圾渗滤液的预处理筛选出一种较优的氧化剂。[方法]采用烧杯试验,探讨了强氧化剂NaClO和KMnO4预处理垃圾渗滤液的效果。[结果]用于垃圾渗滤液预处理时,NaClO和KMnO4的最佳pH值分别为9和5。在最佳pH值条件下,氨氮和COD去除率随氧化剂投加量和温度增加而增大,但NaClO对氨氮和COD的去除效果相对较好。当NaClO作为氧化剂时,随反应时间延长,COD去除率先增加后减小再增加,在静置反应时间为75min时出现谷值。[结论]用于垃圾渗滤液预处理时,氧化剂NaClO是可行的,且其效果优于KMnO4。[ Objective ] The aim was to choose out the optimum oxidant for the pretreatment of landfill leachate. [ Method ] Jar tests were employed to study the influences of sodium hypochlorite （NaCl0） and potassium permanganate （ KMnO4 ） on pretreatment of landfill leachate. [ Result] The best pH value was 9 for NaClO and 5 for KMnQ during pretreatment of landfill leachate. With the increase of oxidant doses and temperature, the removal rates of ammonia-nitrogen（ NH3-N） and COD increased whether the oxidant was NaClO or KMnO4. And more efficiency was obtained for the uses of NaClO. In addition, oxidation time had a special effect on the removal rate of COD after adding NaCIO to the landfill leachate. The removal rate of COD increased slowly before 45 min, decreased within 45 - 75 min, and increased again after 75 min. [ Conclusion] NaClO was applicable to the pretreatment of landfill leachate , and had a better result than KMnO4.

关 键 词：NACLO KMNO4 垃圾渗滤液 预处理 

分 类 号：X703[环境科学与工程—环境工程]