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通过一个乡镇供水工程实例，介绍一种将针管沉淀池改造为斜管沉淀汽浮池的技术，用于处理受污染的，或低浊度、微生物含量多的原水。该方法具有经济效益显著，水处理效果好，运行管理灵活等特点。
Through an example of a township water supply project, a technique for transforming the sedimentation tank of a needle tube into a slanted-tube sedimentation floatation tank is introduced to treat contaminated or raw water with low turbidity and high microbial content. The method has the advantages of significant economic benefits, good water treatment effects, and flexible operation and management.