某自来水厂应对水源藻类突发污染的运行探索与实践  

Exploration and Practice of a Waterworks to Deal with Sudden Algae Pollution in Water Source

作　　者：肖丹 南军 范雅倩 林显增 XIAO Dan;NAN Jun;FAN Ya‑qian;LIN Xian‑zeng(School of Environment,Harbin Institute of Technology,Harbin 150090,China;Foshan City Chancheng District Water Ssupply Co.Ltd.,Foshan 528000,China)

机构地区：[1]哈尔滨工业大学环境学院,黑龙江哈尔滨150090 [2]佛山市禅城区供水有限公司,广东佛山528000

出　　处：《中国给水排水》2024年第3期9-14,共6页China Water & Wastewater

基　　金：佛山市重点领域科技攻关项目(2020001005987)。

摘　　要：在水厂现有工艺上如何实现及时、高效、经济除藻,是当前亟需解决的问题。以珠江水系北江段某水厂应对水源藻类突发污染为例,混凝除藻烧杯试验发现,采用Al2O3含量为6%的聚合氯化铝(PAC)且投加量为20 mg/L,同时投加0.6 mg/L的二氧化氯,可以有效去除水中大部分叶绿素a,除藻率高达90%以上,并且还可强化后续的混凝沉淀效果。将以上结果在生产性试验中进行验证,取得了良好效果,这为珠江水系沿线自来水厂应对藻类暴发提供了重要的数据支撑。It is an urgent problem to achieve timely,efficient,and cost‑effective algae removal in the existing treatment processes of waterworks.In this study,a waterworks in Beijiang section of the Pearl River system was taken as an example to deal with algae pollution in the water source.The lab‑scale test showed that when PAC containing 6%Al2O3 was used and the dosage was 20 mg/L,and the dosage of chlorine dioxide was 0.6 mg/L,most of the chlorophyll a in the water could be effectively removed,and the algae removal rate was as high as over 90%.In addition,the subsequent coagulation and precipitation effect could be strengthened.The above results were also verified in the full‑scale test,and good results were obtained.The relevant results of this study will provide important data support for waterworks dealing with algae bloom outbreaks along the Pearl River system.

关 键 词：水厂 藻类 二氧化氯 混凝 

分 类 号：TU991[建筑科学—市政工程]