Urban Waste Hygiene Landfill Leachate Treatment Process

摘要

Since leachate from landfills contains high concentrations of organic matter, there is a high possibility that secondary pollution will occur in the landfill area and discharge area. Therefore, if untreated leachate is introduced into rivers, rivers or groundwater, It is necessary to treat and discharge the leachate properly.;Therefore, the present invention aims to provide a process development for leachate treatment, a design of leachate treatment plant, and a basic factor for efficient operation in order to more effectively and stably treat the leachate generated in the sanitary landfill of municipal waste.;In order to achieve this purpose, the treatment efficiency of the first biological treatment (anaerobic and aerobic treatment) and the appropriate residence time were examined, and the treatment efficiency according to the flocculant was examined for the second mixed flocculation and sand filtration. Ozone treatment is carried out to develop a treatment process capable of treating leachate below the water quality standard of effluent water.