[1]李佩琪,黄廷林,燕军乐,等.高效去除低温低浊地表水中有机物中试研究[J].中国给水排水,2023,39(13):47-53.
　LIPei-qi,HUANGTing-lin,YANJun-le,et al.Pilot Study on Efficient Removal of Organic Matters in Low-turbidity Surface Water at Low Temperature[J].China Water & Wastewater,2023,39(13):47-53.
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高效去除低温低浊地表水中有机物中试研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第13期 页码: 47-53 栏目: 出版日期: 2023-07-01
Title:
Pilot Study on Efficient Removal of Organic Matters in Low-turbidity Surface Water at Low Temperature
作者:
李佩琪1,2， 黄廷林1,2， 燕军乐3， 薛睿康1,2， 刘茜3
（1.西安建筑科技大学 西北水资源与环境生态教育部重点实验室，陕西 西安 710000；2.西安建筑科技大学 陕西省环境工程重点实验室，陕西 西安 710000；3.陕西省引汉济渭工程建设有限公司，陕西 西安 710010）
Author(s):
LI　Pei-qi1，2， HUANG　Ting-lin1，2， YAN　Jun-le3， XUE　Rui-kang1，2， LIU　Qian3
（1. Key Laboratory of Northwest Water Resources and Environmental Ecology ， Xi’an University of Architecture and Technology， Xi’an 710000， China； 2. Shaanxi Provincial Key Laboratory of Environmental Engineering， Xi’an University of Architecture and Technology， Xi’an 710000， China； 3. Hanjiang-to-Weihe River Water Diversion Project Construction Co. Ltd.， Xi’an 710010， China）
关键词:
低温低浊水;  絮凝;  沉淀;  气浮;  预氧化
Keywords:
low temperature and low turbidity water;  flocculation;  precipitation;  air floatation;  pre-oxidation
摘要:
为提高西北地区饮用水水厂对低温低浊地表水中有机物的处理能力，通过建立网格絮凝—斜管沉淀和机械絮凝—气浮两个中试系统，探究两种工艺及预氧化强化混凝沉淀对低温低浊水中有机物的去除效果与机理。结果表明，网格絮凝—斜管沉淀工艺对浊度、CODMn、UV254和DOC的去除效果更好，其总运行费用为0.068 元/m3，低于机械絮凝—气浮工艺的0.180 元/m3。在此基础上，选择高铁酸钾、高锰酸钾和二氧化氯对网格絮凝—斜管沉淀工艺进行预氧化强化处理，发现当高锰酸钾投加量为0.6 mg/L时对有机物的去除效果最优。三维荧光光谱（EEMs）平行因子分析结果显示，不同预氧化药剂对不同组分有机物的去除各有侧重。
Abstract:
This paper established two pilot processes including grid flocculation combined with inclined tube precipitation and mechanical flocculation combined with air flotation, and investigated the performance and mechanism of the two processes and pre-oxidation enhanced coagulation precipitation for removing organic matters from low-turbidity water at low temperature, so as to improve the treatment ability of organic matters from low-turbidity surface water at low temperature in drinking water plants in Northwest China. The grid flocculation and inclined tube precipitation process showed better performances for turbidity, CODMn, UV254 and DOC removal, and its total operating cost was 0.068 yuan/m3, which was lower than 0.180 yuan/m3 of mechanical flocculation and air flotation process. On this basis, potassium ferrate, potassium permanganate and chlorine dioxide were selected to enhance the pre-oxidization of the grid flocculation and inclined tube precipitation process. The removal performance of organic matters was the best when the dosage of potassium permanganate was 0.6 mg/L. The results of EEMs parallel factor analysis showed that different pre-oxidizing agents had different effects on the removal of different organic compounds.

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更新日期/Last Update: 2023-07-01