XIAODan,NANJun,FANYa-qian,et al.Exploration and Practice of a Waterworks to Deal with Sudden Algae Pollution in Water Source[J].China Water & Wastewater,2024,40(3):9-14.
某自来水厂应对水源藻类突发污染的运行探索与实践
- Title:
- Exploration and Practice of a Waterworks to Deal with Sudden Algae Pollution in Water Source
- Keywords:
- waterworks; algae; chlorine dioxide; coagulation
- 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。
- Abstract:
- 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.
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