[1]李婷,张祥社,吴雪雅,等.水厂应对“龙舟水”期间高浊原水的措施及成效[J].中国给水排水,2025,41(20):94-99.
　LITing,ZHANGXiang-she,WUXue-ya,et al.Measures and Effectiveness of a Waterworks in Addressing High Turbidity Raw Water during “Dragon Boat Rain” Period[J].China Water & Wastewater,2025,41(20):94-99.
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水厂应对“龙舟水”期间高浊原水的措施及成效

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第20期 页码: 94-99 栏目: 出版日期: 2025-10-17
Title:
Measures and Effectiveness of a Waterworks in Addressing High Turbidity Raw Water during “Dragon Boat Rain” Period
作者:
李婷1， 张祥社1， 吴雪雅2， 黄婷婷1， 陈海松1， 王长平1
（1.深水龙岗水务集团有限公司，广东 深圳　518055；2.深圳市环境水务集团有限公司，广东 深圳　518031）
Author(s):
LI　Ting1， ZHANG　Xiang-she1， WU　Xue-ya2， HUANG　Ting-ting1， CHEN　Hai-song1， WANG　Chang-ping1
（1. Shenshui Longgang Water Group Co. Ltd.， Shenzhen 518055， China； 2. Shenzhen Water and Environment Group Co. Ltd.， Shenzhen 518031， China）
关键词:
龙舟水;  水质突变;  浊度;  除铁除锰;  预氧化
Keywords:
dragon boat rain;  water quality variation;  turbidity;  removal of Fe/Mn;  pre-oxidation process
摘要:
深圳某水厂在“龙舟水”期间原水水质波动明显，浊度最高值从平时的131 NTU增至1 000 NTU。此外，CODMn、NH4+-N、铁、锰和色度等其他指标也增长至少75%，给供水安全带来巨大风险。针对这一问题，该水厂总结过去多年应对“龙舟水”水质变化的经验，建立高锰酸钾预氧化药剂、PAC混凝剂与原水浊度的线性关系，制定从调蓄水量、增加预氧化、优化药剂投加和排泥周期到加强原水预警等一系列科学应对措施，取得较为显著的效果。实践表明：在原水水质突跃式变化情况下，尤其在原水浊度持续超过500 NTU、原水锰高于0.5 mg/L的情况下，出厂水平均浊度和锰分别能够达到低于0.15 NTU和0.05 mg/L，远低于相应的出厂水标准（1 NTU和0.1 mg/L），其他出厂水水质指标均满足《生活饮用水卫生标准》（GB 5749—2022）。
Abstract:
“Dragon boat rain” refers to the persistent and large-scale heavy precipitation that occurs around the Dragon Boat Festival, typically in South China. Affecting by geographic position, the raw water quality of a waterworks in Shenzhen fluctuates significantly during this period. The maximum turbidity increases from the typical 131 NTU to 1 000 NTU. In addition, other parameters such as CODMn, NH4+-N, Fe, Mn, and chromaticity have increased by at least 75%, posing substantial risks to the safety of water supply. Efficient response to such abrupt water quality changes is critical for ensuring secure potable water supply. To address this challenge, the waterworks synthesized years of operational experience in managing “dragon boat rain” impacts. Linear relationships were established between potassium permanganate pre-oxidation dosage, PAC dosage, and raw water turbidity. This waterworks formulated and implemented a comprehensive suite of scientific countermeasures, including the regulation of water quantity, enhanced pre-oxidation process, optimization of chemical dosage and sludge disposal, and strengthened early raw water quality warning. These integrated measures yielded significant practical outcomes: even during periods of abrupt raw water quality deterioration—particularly when turbidity exceeded 500 NTU and manganese levels surpassed 0.5 mg/L—the treated water consistently maintained average turbidity below 0.15 NTU and manganese levels below 0.05 mg/L, values significantly below the regulatory standards for treated water quality (1 NTU and 0.1 mg/L, respectively), with all other treated water parameters complying with the Standards for Drinking Water Quality (GB 5749-2022).
更新日期/Last Update: 2025-10-17