微电解处理垃圾渗沥液的试验研究

Experimental Study on the Treatment for Leachate by Micro-electrolysis

根据微电解的特点，采用微电解技术对垃圾渗沥液经生化处理后出水进行深度处理。微电解处理的效果随着进水pH值的升高越来越差。对微电解出水经中和、过滤后的CODCr浓度进行了分析，结果表明微电解产生的Fe（OH），絮状物通过吸附捕集作用效果明显。出水投加1～2g／L粉末活性炭，CODCr排放浓度可以达到GB16889-1997《生活垃圾填埋污染控制标准》二级排放标准。

Micro- electrolysis technology is applied to treat the effluent of leachate treated by biochemical method. The treatment effect worsens with the increase of pH value. Analysis on the concentration of CODc, in the effluent after neutralization and filtration shows that the absorption function of flocculant Fe（ OH）3 produced from micro - electrolysis is obvious. When 1 ～ 2 g/L of active carbon powder is added, the discharge concentration of CODCr can reach the Grade Ⅱ of GB16889 - 1997 ＂Standard for Pollution Control on the Landfill Site for Domestic Waste＂.