[1]植许鋆,陈兴祥,张慧欢.西江流域肇庆段高藻污染及某水厂除藻措施[J].中国给水排水,2025,41(4):92-97.
　ZHIXu-jun,CHENXing-xiang,ZHANGHui-huan.High Algae Pollution in Zhaoqing Section of Xijiang River Basin and Algae Removal Measures of a Waterworks[J].China Water & Wastewater,2025,41(4):92-97.
点击复制

西江流域肇庆段高藻污染及某水厂除藻措施

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第4期 页码: 92-97 栏目: 出版日期: 2025-02-17
Title:
High Algae Pollution in Zhaoqing Section of Xijiang River Basin and Algae Removal Measures of a Waterworks
作者:
植许鋆， 陈兴祥， 张慧欢
（肇庆市水务集团有限公司，广东 肇庆 526060）
Author(s):
ZHI　Xu-jun， CHEN　Xing-xiang， ZHANG　Hui-huan
（Zhaoqing Water Group Co. Ltd.， Zhaoqing 526060， China）
关键词:
藻类污染;  低浊度;  预氧化;  强化混凝;  二氧化碳
Keywords:
algal pollution;  low turbidity;  pre-oxidation;  enhanced coagulation;  carbon dioxide
摘要:
近年来西江流域肇庆段藻华污染愈发严重，特别在2023年高藻暴发期，对沿线各水厂均造成了不同程度的影响。对该地区的高藻污染进行调研，基于实际情况采取了高锰酸钾盐预氧化、PAM强化混凝与二氧化碳调节pH的除藻措施，并在某自来水厂进行烧杯试验与工艺优化调整。结果表明，高藻污染对水厂的冲击主要表现在原水pH上升、滤池反冲洗周期缩短以及混凝剂消耗增加。烧杯试验表明，高藻污染期间该水厂高锰酸钾复合盐、聚氯化铝、PAM投加量宜分别控制在0.1、15、0.1 kg/103 m3。该厂进行工艺优化后，各项出水水质指标正常，聚氯化铝消耗量相对减少，且两种滤池的反冲洗周期均得到延长。
Abstract:
In recent years, the algal bloom pollution in the Zhaoqing section of Xijiang River basin has shown an increasingly significant trend, especially during the high algal bloom period in 2023, which has caused varying degrees of impact on waterworks along the line. Based on a survey on the high algae pollution in the region, the measures such as potassium permanganate pre-oxidation, PAM enhanced coagulation, and carbon dioxide pH regulation were taken to remove algae, and jar test and process optimization were conducted in a waterworks. The results indicate that the impact of high algae pollution on waterworks is mainly reflected in the increase of raw water pH, shortened backwash cycle of filters, and increased consumption of coagulants. According to the jar test analysis, during the period of high algae pollution, the dosage of potassium permanganate composite salt, polyaluminum chloride, and PAM in the waterworks should be controlled at 0.1 kg/103 m3,15 kg/103 m3,and 0.1 kg/103 m3, respectively. After process optimization of the waterworks, all effluent quality indicators are normal, the consumption of polyaluminum chloride is relatively reduced, and the backwash cycles of both filters are extended.
更新日期/Last Update: 2025-02-17