高碑店污水处理厂污泥处理系统及设计中应注意的一些问题
张韵冯运玲
北京市市政工程设计研究总院
摘 要:高碑店污水处理厂是目前国内最大的城市污水处理厂并已投入运行 多年,该厂具有完善的污泥处理系统,其中包括污泥的厌氧消化、沼气发电 以及发电机组余热利用系统等。本文着重介绍了该厂污泥处理系统的设计, 并结合近年实际运行情况进行了分析总结,提出设计中应注意的一些问题和 建议。
关键词:污泥处理系统,厌氧消化,沼气发电,余热利用
Issues to be Noted in the Design of Sludge Treatment System
in Gaobeidian Sewage Treatment Plant
Zhang Yun , Feng Yunling
(BeiJing General Municipal Engineering Design & Research Institute B-2 South Yue tan Street, 10045 Bei Jing)
Abstract: Gaobeidian STP which has been put into operation for quiet a number of years is currently the largest urban sewage treatment plant in China. It is equipped with a complete sludge treatment system, composing processes as anaerobic digestion of sludge, methane generation and utilization of residual heat from generating sets. This paper focuses on an introduction of the design of the sludge treatment system. Based on an analysis of the practical operation of the STP in recent years, this paper also points out the issues to be noted in the design of the sludge treatment system and proposes some suggestions in this regard.
Key words: sludge treatment system, anaerobic digestion, methane generation, utilization of residual heat
1序言
随着污水处理的不断普及,污泥处理也越来越引起人们的重视。污泥的 处理在污水处理过程中是不可忽视的重要环节。在污水处理过程中污染物一 部分被微生物降解,一部分以污泥的形式存在。污泥中含有有机物、重金属、 病原菌等,若处理、处置不当很容易造成对环境的二次污染,使污水处理厂 不能发挥其应有的功能。污泥处理和处置费用在整个污水处理厂处理费用中 约占
40%左右。无论在污染控制上还是在运行费用上,
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