摘要
试验在传统混凝—沉淀—三层滤料过滤工艺的基础上,通过对滤料级配的改进,将三层滤料高速过滤工艺应用于再生水的生产,对其可行性进行分析研究。结果表明:在最佳工艺条件下出水浊度的去除率可达97.5%～98.5%,COD去除率在43%左右。同时研究发现,在高速过滤条件下,通过絮凝剂在滤床中发挥的微絮凝作用,可以起到良好的除污效果且出水水质稳定。
The test is, on the basis of traditional coagulation-sedimentation-triple media filtration technique, through the improvement of the gradation, studying the feasibility of triple media filtration technique used in the micro floeculation-highspeed filtration of the recycled water production. The results show that in the optimum conditions, effluent turbidity removal rate can be up to 97.5% ～98.5% , and COD removal rate is 43 %. The study found that in the conditions of high-speed filteration ,through the effect of the micro fiocculation with the flocculant playing the role of flocculation in filter bed, good decontamination effect can be got and the effluent quality is stable.
出处
《环境工程》
CAS
CSCD
北大核心
2012年第3期25-27,共3页
Environmental Engineering
基金
国家水体污染控制与治理科技重大专项(2009ZX07419)
关键词
三层滤料
微絮凝
高速过滤
再生水
triple media filter
micro-flocculation
high-speed filtration
recycled water
