一体化多效澄清系统在水厂排泥水处理中的应用

Application of Integrated Multi-Effect Clarification System in Sludge Wastewater Treatment in WTP

老旧水厂新建排泥水设施大多面临用地紧张问题。针对南方某水厂排泥水浑浊度大、混凝程度高、分离性好的水质特点,以及污泥含水率低于80%、上清液SS质量浓度不高于50 mg/L的处理目标,某水厂采用了集成化设备处理工艺“一体化多效澄清系统+带式浓缩脱水”。该系统针对排泥水特点优化了混凝反应区和沉淀区以提高运行效率,项目运行稳定可靠,污泥含水率低于65%,上清液SS质量浓度低于15 mg/L,在同类型项目中具有投资低、占地小、处理效果好的优势。

Most of the newly built sludge discharge facilities in old WTPs face land scarcity issues.In view of the water quality characteristics of large turbidity,high degree of coagulation and good separation,as well as the treatment goals of sludge wastewater content less than 80%and supernatant suspension not higher than 50 mg/L in a WTP in southern China,a WTP adopts an integrated equipment treatment process"integrated multi-effect clarification system+belt concentration dewatering".The system optimizes the coagulation reaction zone and sedimentation zone based on the characteristics of sludge wasterwater to improve operational efficiency,the project operates stably and reliably,the sludge moisture content is less than 65%,and the supernatant suspension is less than 15 mg/L,which has the advantages of low investment,small land occupation and good treatment effect in the same type of project.