活性炭对垃圾渗滤液COD吸附规律的研究

Research on Adsorption Principles of COD in Leachates by Activated Carbon

卫生填埋是当前国内外垃圾处理的主要方法之一,垃圾渗滤液具有水质、水量波动大、成份复杂,有毒有害物质含量高的特点。采用经过预处理的200目活性炭作为吸附剂进行吸附实验,研究了在不同的活性炭加入量、吸附温度、pH值等条件下活性炭吸附渗滤液COD的规律。结果表明,以活性炭作为吸附剂的简单预吸附处理技术,能有效降低渗滤液后续生物处理的负荷,对垃圾渗滤液实际处理具有一定指导意义,所得的吸附规律可以为活性炭吸附垃圾渗滤液提供参考。

Sanitary landfill is currently the main methods for municipal solid waste disposal. The characteristics of Landfill leachate are complex components, high fluctuations of water quality and quantity, high concentrations of toxic substences. This paper aims to present absorption experiment with the 200 meshes activated carbon as the adsorbent. The purpose of the experiment is principles for COD respectively in different conditions, such as activated carbon mass, adsorptive time and pH value. The results show that the simple pre-adsorption of the activated carbon as adsorbent processing technology, can effectively reduce the load of subsequent biological treatment of leaehate, the actual processing of landfill leaehate by certain guiding significance. The acquired adsorptive principles of activated can be used references for activated carbon to adsorb Landfill leachate.