光催化氧化法处理垃圾渗滤液特性研究

Research on properties of treating landfill leachate by photocatalysis oxidation process

研究了紫外光催化氧化法对垃圾填埋场渗滤液的降解机理．根据废水水质的不同,考察了反应时间、进水浓度、pH值、紫外光波长等因素对垃圾渗滤液中有机污染物和色度去除的影响．对垃圾渗滤液原水进行试验,CODCr去除率达到31．88％,褪色率达到91．06％;对UASB 出水再进行光催化氧化,CODCr去除率达到63．56％,褪色率达到93．80％．

The degradation mechanism of landfill leachate by photocatalysis oxidation process is studied. Acorrding to the difference of the waste water quality, the affections of the reaction time, concentration of the influent, pH, ultravioleflight wavelength on the removal of organic contaminants and chromaticity of landfill leachate are studied. The test of original leachate is made, and the removal rate of CODer and decolorization rate are respectively 31.88% and 91.06%. Also, the effluent of UASB is tested again by photocatalysis oxidation, the removal rate of CODer and decolorization rate are respectively 63.56% and 93.80%.