染料厂污染土壤中六氯苯的水淹法厌氧降解  

Effect of water submergence on anaerobic degradation of hexachlorobenzen in contaminated soil of dye plant

作　　者：刘辉[1] 王琪[1] 姜林[1] 钟茂生[1] 樊艳玲[1] 贾晓洋[1] 蔡月华[1] 

机构地区：[1]北京市环境保护科学研究院、国家城市环境污染控制工程技术中心、污染场地风险模拟与修复北京市重点实验室,北京100037

出　　处：《环境工程学报》2014年第4期1605-1612,共8页Chinese Journal of Environmental Engineering

基　　金：环保公益性行业科研专项(201009032);中意污染场地管理国际合作项目;北京环科院科技基金资助项目(2012-B-02)

摘　　要：以乙酸为碳源,采用正交实验的方法,探讨了水淹法厌氧降解某染料厂污染土壤中六氯苯的效果,研究考察了初始pH、反应温度和固液比3个环境因素对六氯苯降解率的影响,确定了六氯苯最佳的厌氧降解条件。结果表明,初始pH对土壤中六氯苯的降解率影响最大。在初始pH为5,反应温度为45℃,固液比为1∶1的最佳反应条件下,六氯苯的降解率最高达到52.56%。In this study, orthogonal experiment was designed and carried out to assess effect of water sub- mergence on anaerobic degradation of hexachlorobenzen （HCB） in contaminated soil of a dye plant and further to investigate influencing factors of initial pH, environmental temperature and solid-liquid ratio. The results show that the initial pH is the most influencing factor and the HCB degradation rate can be up to 52.26% under the most favorable condition,i, e. at initial pH of 5,temperature of 45℃ and solid-liquid ratio of 1 ： 1.

关 键 词：污染土壤 六氯苯 厌氧降解 水淹法 

分 类 号：X53[环境科学与工程—环境工程]