污水处理工艺的性能的比较及优化
摘 要:污水处理所采用的工艺技术是污水处理厂的核心部分，与进水水质、出水要求、处理量、投资大小等等因素密切相关。其中使用最广泛的主要有四种类型：①传统活性污泥工艺和其改进型A／O、Asup2;／O工艺；②AB工艺；③SBR及其改进工艺；④ 氧化沟及其改进工艺。本文将简要介绍这四类污水处理工艺，同时介绍一种新型的污水生物处理技术。
关键词：污水处理 氧化沟处理工艺 技术改造
Comparison and Optimization of Sewage Treatment Process
Abstract: The process technology used in sewage treatment is the core part of sewage treatment plant, which is closely related to influent water quality, effluent requirement, treatment capacity, investment size and so on. Among them, the most widely used are the four main types:1 traditional activated sludge process and its modified A/O, A2/O process;2AB process;3SBR and its improved process;4 oxidation ditch and its improved process. This paper will briefly introduce these four kinds of sewage treatment technology, and introduce a new type of sewage biological treatment technology, and make an analysis and prospect of urban sewage treatment technology in Huai#39;an city [1].
1城市污水处理技术
由于城市污水的主要污染物是有机物，因此目前国内外大多采用生物处理技术处理城市污水，又可分为活性污泥法和生物膜法两大类。其中，由于生物膜法的处理效率不高，卫生条件较差，我国只有少数几座生物膜法城市污水处理厂；而活性污泥法污水处理厂占绝大多数，
1.1传统活性污泥工艺和其改进型A／O、A sup2;／O
(1)传统活性污泥工艺
