厌氧生物滤池处理焚烧厂垃圾渗沥液试验研究  

Experimental Study on the Leachate from Waste Incineration Plant Treated by Anaerobic Biological Filter

作　　者：江亚斌 魏新庆 张根升 蒲红霞 Jiang Yabin;Wei Xinqing;Zhang Gensheng;Pu Hongxia(Tianjin JC Environmental Services Co.Ltd.,Tianjin 300202)

机构地区：[1]天津建昌环保股份有限公司

出　　处：《环境卫生工程》2019年第6期68-71,共4页Environmental Sanitation Engineering

基　　金：天津市科技计划项目(16YDYGHZ00050)

摘　　要：采用厌氧生物滤池对焚烧厂垃圾渗沥液进行处理,接种污泥为CSTR消化污泥,在(37±2)℃条件下完成挂膜后,反应器连续稳定运行近6个月。期间通过对COD、NH3-N、TN、pH、VFA、TIC、VAF/TIC、日产气量及CH4含量等指标的监测,研究反应器对渗沥液的处理效果。结果表明,厌氧生物滤池对渗沥液中有机污染物的去除率很高,当进水COD浓度为49000~82000 mg/L,出水COD浓度为3000~8000 mg/L,COD去除率基本维持在90%以上;系统运行期间TIC可达10000 mg/L左右,VFA/TIC基本维持在0.2~0.5,属于厌氧反应器的适宜范围;氨化作用显著,进水NH3-N/TN(40%~70%)明显低于出水NH3-N/TN(85%~99%);产气效率较高,日产气量可达300~400 L,CH4含量约70%。The leachate from waste incineration plant was treated by anaerobic biological filter.The inoculated sludge was digestion sludge which came from a Continuous Stirred-Tank Reactor(CSTR).The operating temperature was kept at(37±2)℃.After biofilm were completly growing well,the reactor operated steadily and continuously for nearly six months.During this period,the treatment effect of the reactor on leachate was studied by monitoring COD,NH3-N,TN,pH,VFA,TIC,VAF/TIC,daily biogas production and CH4 content.The results showed that the removal efficiency of organic pollutants in leachate by anaerobic biological filter was very high.When the inlet COD concentration was 49000~82000 mg/L and the outlet COD concentration was 3000~8000 mg/L,the removal rate of COD reached over 90%;During the operation of the reactor,the TIC was nearly 10000 mg/L,and the VFA/TIC was basically maintained at 0.2~0.5,which belonged to the appropriate range of anaerobic reactors.Ammonification was significantly,and NH3-N/TN of inlet(40%~70%)was obviously lower than that of outlet(85%~99%);Gas production efficiency was high,the daily biogas production could reach 300~400 L,CH4 content was nearly 70%.

关 键 词：厌氧生物滤池 垃圾焚烧厂 渗沥液 

分 类 号：X703[环境科学与工程—环境工程]