不同原水条件下水厂的混凝过程研究

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英文篇名：Coagulation Process of Different Raw Water in Waterworks 作者：苏航 ; 徐慧 ; 王东升 ; 段晋明 英文作者：SU Hang;XU Hui;WANG Dong-sheng;DUAN Jin-ming;School of Environmental and Municipal Engineering,Xi'an University of Architecture and Technology;State Key Laboratory of Environmental Aquatic Chemistry,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences; 关键词：原水 ; 混凝 ; 有机物 ; 浊度 英文关键词：raw water;;coagulation;;organic matter;;turbidity 中文刊名：GSPS 英文刊名：China Water & Wastewater 机构：西安建筑科技大学环境与市政工程学院;中国科学院生态环境研究中心环境水质学国家重点实验室; 出版日期：2019-04-01 出版单位：中国给水排水 年：2019 期：v.35;No.483 基金：国家自然科学基金青年基金资助项目(51608515、51008293、51578527、41201498) 语种：中文; 页：GSPS201907019 页数：4 CN：07 ISSN：12-1073/TU 分类号：76-79

摘要

为了考察原水性质对混凝过程的影响,对南方某市4个水厂的混凝过程进行了调研。结果表明,4个水厂的原水呈现不同的水质特征,其中A、B水厂原水(湖泊水)的浊度比C、D水厂原水(长江水)的要低,而有机物浓度比C、D水厂原水的要高; 4个水厂原水中的有机物组成类似,均是腐殖酸所占比例最大(50%左右)。A、C水厂各混凝段的浊度随着混凝反应的进行呈下降趋势,而B、D水厂各混凝段的浊度无下降趋势,甚至略有上升; A水厂滤池出水的DOC浓度明显下降,较原水下降了55. 44%,而其余3个水厂的DOC浓度下降不明显;混凝过程对大分子质量有机物的去除作用明显。
        Coagulation processes of four waterworks in South China were investigated in order to explore the influence of raw water on the coagulation process. The results indicated that the characteristics of raw water were different. The turbidity of raw water in waterworks A and B was lower than that of waterworks C and D,while the dissolved organic carbon (DOC) concentration of raw water in waterworks A and B was higher than that of waterworks C and D. The organic matter composition of different raw water was similar to each other,and the proportion of humic acid was always the largest (about 50%). The turbidity of each coagulation section in waterworks A and C decreased with the progress of coagulation reaction,but no decrease profile of waterworks B and D was detected,which even increased slightly. The effluent DOC concentration of the filter in waterworks A decreased significantly by 55. 44%,while no obvious decrease of DOC was detected in the other three waterworks.In addition,the coagulation process had obvious removal effect on large molecular weight organics.

引文

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