信阳师范学院学报（自然科学版）2013，Vol.26Issue(1)：119-123,5.DOI:10.3969/j.issn.1003-0972.2013.01.028
微污染原水强化混凝处理技术研究
Micro-polluted Raw Water Treated by Coagulation-sedimentation Process
摘要
Abstract
In order to improve the purification efficiency of micro-polluted raw water in drinking water plant,poly-aluminium Chloride (PAC) was used as coagulants, and the enhanced coagulation were studied using pre-oxidation, activated carbon, coagulant aid and sludge for raw water. The results were as follows: (1) organic matter was broken down into smaller molecular weight, sparse higher hydrophilic organisms by pre-oxidation enhanced coagulation, and the dosages of KMnO4 , H2 O2 and O3 were 1.5 ～ 2, 4～6 and 4 ～ 6 mg/L, respectively; (2) organic matter with molecular weight in 0.6 ～ 3 kD was assorted to improve the removal of CODMn and color by powdered activated carbon enhanced coagulation, and the dosages of powdered activated carbon was 20 ～ 30 mg/L; (3) PAM can effectively improve the floe particle size, particle settling velocity to accelerate the CODMn removal efficiency, and the dosages of PAM was 0.2 mg/L; (4) return sludge can provide a condensed core and give full play to the increased role of the adsorption and the volume swept, and the dosages of sludge was 15 mg/L.关键词
微污染水源水/预氧化/粉末活性炭/PAM助凝剂/回流污泥/强化混凝Key words
micro-polluted raw water/ pre-oxidation/ activated carbon/ coagulant aid/ return sludge/ enhanced coagulation分类
资源环境引用本文复制引用
刘冰,李培启,余国忠,姚高伟,李清飞..微污染原水强化混凝处理技术研究[J].信阳师范学院学报（自然科学版）,2013,26(1):119-123,5.基金项目
国家自然科学基金项目(51208448) （51208448）
省部共建黄河中下游数字地理技术教育部重点实验室开放基金项目(GTYR2011006) （GTYR2011006）
河南省科技计划项目(122102310365) （122102310365）
信阳师范学院青年骨干教师资助计划(120511) （120511）
信阳师范学院博士科研启动基金项目(91231) （91231）
