作　　者： ; ; ; ; ; ;

机构地区： 中国科学院生态环境研究中心

出　　处： 《环境科学》 2003年第1期98-102,共5页

摘　　要： 以聚铝 (PAC)为参照比较研究了聚合氯化铁 (PFC)在微絮凝 深床过滤工艺中的应用效果 .结果表明PFC投药量少 (Fe∶Al =3∶5 ) ,其水头滤程可达 63h ,周期产水率可达 1 5 0 4m3 /m2 ,而PAC的水头滤程为 5 3h ,周期产水率为 1 2 66m3 /m2 ;PFC表现出利于延长运行周期 ,提高产水率等优势 .通过截污机理研究表明 ,PFC具有形成絮体快 ,与滤料作用迅速 ,脱水性能好等特点 ,与PAC相比PFC更适用于微絮凝 Compared with polyaluminium chloride (PAC), the application efficiency of polyferric chloride (PFC) were investigated by pilot micro-flocculation deep bed filtration. The results show that, under the condition of lower dosage(Fe∶Al =3∶5), the headloss cycle of PFC was 63h, and its output in a cycle was 1504m 3/m 2, but PAC headloss cycle was 53h with its output 1266 m 3/m 2. It is concluded that PFC was benefit to prolong operation cycle and improve output. The research on particle removal mechanism shows that PFC could enhance the floc growth, and the PFC flocs could be effectively entrapped and dehydrated. Therefore PFC is more suitable for the micro-flocculation deep bed filtration process than PAC.

关 键 词： 微絮凝 深床过滤工艺 聚合氯化铁 截留机理 聚合氯化铝 混凝剂 废水处理

领　　域： [环境科学与工程]