不同碳源对垃圾渗滤液脱氮效果的影响  

Effect of Different Carbon Source to Nitrogen Removal of Landfill Leachate

作　　者：范爱军[1] 

机构地区：[1]广东省江门市固体废物处理有限公司,广东江门529000

出　　处：《广东化工》2013年第1期95-96,共2页Guangdong Chemical Industry

摘　　要：垃圾渗滤液具有机物成分复杂、氮含量高、毒性大、可生化性差等特点,经过常规工艺和高级氧化处理后的垃圾渗滤液,其总氮含量仍然较高,且主要以硝态氮的形式存在。垃圾渗滤液深度处理,必须在有可生化的外加碳源才可实现生物脱氮。试验探索了投加不同碳源的情况下,生物滤池反应器的脱氮效果,结果表明:脱氮效率从高到低排序依次是甲醇、葡糖糖、蔗糖,它们的反硝化效率分别是80%、60%与50%。Landfill leachate has the features of complicated organic composition, high nitrogen content, biological toxity and poor biodegradability. After routine treatment, nitrogen concentration of the landfill leachate was still high in the form of nitrate nitrogen. Biological reactor was used as the further treatment to remove nitrogen in the landfill leachate after advanced oxidation process. Extra biodegradable carbon sources were required for biological nitrogen removal. Different carbon resources were added into the reactor to study the nitrogen removal efficiency. It could be concluded that carbon sources promoted the growth of denitrifier, and the denitrification performance for the bio-reactor when adding carbon source were： methanol〉glucose〉sucrose, and the nitrification efficiencies were 80 %, 60 % and 50 % respectively.

关 键 词：垃圾渗滤液 碳源 脱氮 

分 类 号：X5[环境科学与工程—环境工程]