硅藻土预处理垃圾渗滤液的试验研究

垃圾渗滤液成份复杂,较难处理。硅藻土具有较强的吸附性能和化学稳定性,因为硅藻土具有较好的絮凝沉淀性能,所以常应用于污水处理中。通过在渗滤液中进行硅藻土不同投加量的试验发现:硅藻土用量越大,絮凝效果越好;串联样中去除污染物的效果明显好于同等投加量的非串联样;在投加硅藻土的同时,适量复合其他絮凝剂像聚合氯化铝(PAC)等,处理效果会更好。后续处理如果再利用膜生物反应器(MBR),处理后的垃圾渗滤液排放标准将大大提高。

Pilot Scale Study of Diatomite in Landfill Leachate Pretreatment

It is difficult to dispose leachate due to the complex ingredient.Diatomite with strong adsorption performance and chemical stability as well as flocculation ability is commonly used in wastewater treatment.By the experiment of adding different amount of diatomite in landfill leachate,the more diatomite was added,the effect of flocculation was better.The effect was clearly better in tandem to remove the same amount of added-kind Series.Results will be better when compound flocculants including poly aluminum chloride was added in the right dosage.If membrane bio-reactor was used in the following treatment,treatment efficiency of leachate would be greatly enhanced.