摘要
本文针对我国城市二级出水的特点,研究了污水深度处理的三种工艺:絮凝沉淀过滤、微絮凝过滤和直接过滤.装置采用网格反应池、翼片斜板沉淀池、气水同时冲洗粗砂滤池.药剂选用聚合硫酸铁,试验规模120m^3/d.
In view of the characteristics of the secondary settling effluent of municipal wastewater treatment plant in our country three kinds of advanced wastewater treatment technology including flocculation, sedmentati-on and sand filter and of microflocculation filtration and direct filtration were discussed in this paper. A flocculation tank with screen, a settler fitted with deflectors inclined plote and a coarse sand filter backwash with air and water simultaneously were adopted as the test devices and poly -ferric sulphate was selected as flocculant. The test scale was 120m3/d.
出处
《城市环境与城市生态》
CAS
CSSCI
CSCD
1992年第3期6-10,共5页
Urban Environment & Urban Ecology
关键词
污水处理
絮凝
沉淀
微絮凝
砂过滤
waste water treatment, flocculation, sedimentation, microf locculation, sand filter
