一步法污泥超深度压滤脱水工艺研究  

Research on One-step Sludge Ultra-deep Filtration and Dewatering Process

作　　者：刘红宇 宋玉 Liu Hongyu;Song Yu(Shanghai Tongchen Environmental Protection Co.,Ltd.,Shanghai,200092)

机构地区：[1]上海同臣环保有限公司,上海200092

出　　处：《当代化工研究》2024年第17期167-169,共3页Modern Chemical Research

基　　金：2017年上海市科学技术委员会工程技术研究中心建设专项“上海污泥处理与资源化高新装备工程技术研究中心”(项目编号:17DZ2252100);2022年上海市科学技术委员会2021年度技术创新中心项目(第一批)“上海市污泥低碳与资源化高新装备技术创新中心”(项目编号:21DZ2221500)。

摘　　要：污泥常规脱水后含水率可到80%~85%,需深度脱水以满足后续处理需求。本研究采用高压板框压滤机,探索含水率80%污泥的直接深度脱水。结果表明,投加聚硅硫酸铁可将含水率降至60%以下,投加三氯化铁和石灰乳则更低。此工艺处理效率提升40%,且投资与运行成本均低于常规工艺,经济效益显著,为污泥深度利用提供了高效、经济的新途径。Sludge can generally reach 80%~85%after conventional dewatering,and deep dehydration is required to meet subsequent treatment requirements.In this study,high pressure plate and frame filter press is explored the direct deep dehydration of sludge with water content of 80%.The results show that the water content can be reduced below 60%by adding polyferric silicate sulfate,and lower by adding ferric chloride and lime milk.The treatment efficiency of this process is increased by 40%,and the investment and operating costs are lower than the conventional process,and the economic benefits are significant,providing a new efficient and economic way for the deep utilization of sludge.

关 键 词：高压板框压滤机 含水率80%污泥 直接进料 深度脱水 节能降耗 

分 类 号：TD94[矿业工程—选矿]