Wash water in waterworks:contaminants and process options for reclamation  

作　　者：C B Chidambara Raj Tan Ee Kwong Soh Hoo Tiong Paul Stefan Klose 

机构地区：[1]Centre for Advanced Water Technology,Singapore Utilities International Pte Ltd.,82 Toh Guan Road East # C4-03,Singapore 608575 [2]Public Utilities Board,Water Supply (Plants) Department,40 Scotts Road #14-00,Singapore 228231

出　　处：《Journal of Environmental Sciences》2008年第11期1300-1305,共6页环境科学学报（英文版）

基　　金：the Public Utilities Board (PUB),Singapore.

摘　　要：Reclamation of clean water from filter backwash water was studied through pilot-scale experiments.The pilot plant consisted of clarification,sand-filtration,and ultrafiltration modules in sequence,with a provision to bypass the sand filter.Clean water that conformed to World Health Organization (WHO) guidelines on Potable Quality was reclaimed.Turbidity,aluminum and iron were found to be critical contaminants in process selection and design.Clarification,followed by sand filtration,was found to be the minim...Reclamation of clean water from filter backwash water was studied through pilot-scale experiments.The pilot plant consisted of clarification,sand-filtration,and ultrafiltration modules in sequence,with a provision to bypass the sand filter.Clean water that conformed to World Health Organization (WHO) guidelines on Potable Quality was reclaimed.Turbidity,aluminum and iron were found to be critical contaminants in process selection and design.Clarification,followed by sand filtration,was found to be the minim...

关 键 词：filter backwash CLARIFICATION water treatment aluminium GIARDIA 

分 类 号：X703[环境科学与工程—环境工程]