光催化氧化法处理垃圾填埋场渗滤液的研究

Treatment of infiltration wastewater from sanitary landfill by photocatalysis oxidation

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 Ti O2 催化剂用量、p H值、通气量、反应时间、光照强度等因素对废水中有机污染物和色度去除的最佳条件。用现场采集的渗滤液原水和氧化沟出水试验 ,CODcr去除率分别达到 80 .6%、77.3 % ,色度去除率分别为 87.9%、83 .3 %

The degradation mechanism of infiltration wastewater from sanitary landfill by photocatalysis oxidation is studied. The optimum conditions of catalyst TiO 2 dosage,pH,the amount of air pumped,reaction time,light intensity are tested respectively for processing the filtration wast[WT5”,6BZ]ewater and the pre\|treated filtration wastewater with oxidation ditch. The removal percentages of CODcr and chromaticity for the original infiltration wastewater are respectively 80.6% and 87.9% ,and are respectively 77.3% and 83.3% for the pre\|treated filtration wastewater。\;