本文设计的张贵庄污水处理厂，是隶属于天津市中心城区六大排水系统中， 最后一座大型污水处理厂，是关系天津市东丽区经济发展和环保水平的重要工 程。考虑到天津市是一座缺水城市，工业发展使得有限的水资源不断污染，加上 地区性的水资源分布不均和周期性干旱，导致水资源日益短缺，在张贵庄污水厂 工程的基础上，对城市污水进行处理回用，同步建设了张贵庄再生水厂。两座大 型市政设施的建立，对天津东丽区的经济发展提供了有力保障。 本文充分了解了国内外对城市污水处理和污水再生利用的现状及技术水平。 针对张贵庄系统的实际情况，通过对污水处理厂服务区现状用量、远期用水量和 近期用水量的预测，确定了本污水处理厂的处理规模；通过对再生水厂服务区内 的工业、住宅等对再生水的需求，确定了再生水厂的建设规模。根据本地区污水 综合水质的实际调查，确定污水厂设计进水水质；根据当地环保部门要求确污水 厂的出水水质；根据服务范围内用户对再生水水质的需要，结合城市杂用、景观 水体、工业冷却三种水质的要求，确定了再生水厂的出水水质标准。本文详细分 析了污水进水中污染物构成，介绍了针对各种污染物的去除工艺，并对目前常用 的几种深度处理技术及组合进行了比较，选定了两种适合于本厂的水处理工艺： MBR+RO 工艺和高效 AO+CMF+RO 工艺。从工程总投资、运行管理的方便性和 经济性、工艺运的可靠性、占地面积等方面进行比较，最终确高效 AO+CMF+RO 为该厂污水+再生水处理工艺。本文最终论证了张贵庄污水处理厂和再生水厂采 用高效 AO+CMF+RO 处理工艺的技术路线，适合该地区、该厂实际情况，技术 先进、经济实用、安全可靠，具有可行性。 关键词：污水处理；除磷脱氮；再生水；硝化；反硝化 ABSTRACT This paper describes the last WWTP—Zhangguizhuang which belong to one of the Six drain system of Tianjin.It is very important projection in Tianjin Dongli District.Tianjin is short of water and the industry has polluated water resource.Uneven distribution of water resources and periodic drought has lead to increasing water shortages. For this reason we construct zhangguizhuang recycling plant simultaneous. The establishment of two large municipal facilities for the economic development of Tianjin Dongli District provides a strong guarantee. The current status and technical level of urban wastewater treatment and reuse at domestic and international has been research.Based on Zhangguizhuang system actual situation, through the sewage treatment plant service area status water consumption, and the recent long-term forecast of water, determined the size of the sewage treatment plant. Through the regeneration of industrial, residential determine the size of recycling plant.According to the regional wastewater water quality in the actual investigation to determine the wastewater treatment plant designed quality. According to the requirement of environmental protection department determine effluent quality. According to the users of recycled water needs, with urban use, scenic environment use and industrial use, to determine the recycling plant's water quality. This research made analysis of the composition of pollutants in wastewater, introduced the technology for the removal of various pollutants, and the advanced treatment techniques were compared, selected two for factory water treatment processes: MBR + RO process and SF-AO + CMF + RO process. Compare about project investment, operation and management of convenience, the reliability of process operation, the area and other aspects, ultimately selected SF-AO + CMF + RO as wastewater treatment technique. This research ultimately demonstrates zhangguizhuang wastewater treatment plant and recycling plant using SF-AO + CMF + RO treatment process technology to admap for the region, the actual situation in the factory, advanced technology, economical, safe, reliable and feasible. Keywords: wastewater treatment; phosphorus and nitrogen removal; reclaimed water, nitrification; denitrification 目 录 第一章 工程概述 .........................................................................................................1 1.1 工程概况......................................................................................................1 1.2 工作过程......................................................................................................1 1.3 工程背景......................................................................................................2 1.4 建设的必要性..............................................................................................4 第二章 污水处理工艺发展综述 .................................................................................6 2.1 石家庄滹沱河污水处理厂..........................................................................6 2.2 改良型 A 2 /O 工艺污水处理厂...................................................................7 2.3 常州市城北污水处理厂..............................................................................8 2.4 承德双滦污水处理厂..................................................................................9 2.5 新型立体循环一体化氧化沟工艺污水处理厂..........................................9 2.6 沙营污水处理厂........................................................................................10 2.7 韩国浦项大学(AO) 2 SBR 工艺..................................................................16 2.8 色雷斯的德谟克利特大学污水处理工艺................................................16 第三章 污水处理厂工程规模及处理程度的确定...................................................18 3.1 污水处理厂工程规模的确定....................................................................18 3.2 再生水处理厂工程规模的确定................................................................19 3.3 污泥处理处置工程规模的确定................................................................20 3.4 污水进、出水水质的确定........................................................................21 3.5 再生水厂进、出水水质的确定................................................................22 3.6 厂址的选择................................................................................................24 第四章 污水处理厂处理工艺的选择 .......................................................................25 4.1 污水处理工艺总体设计思路....................................................................25 4.2 生物脱氮除磷工艺的选择........................................................................25 4.3 深度处理工艺的选择................................................................................29 4.4 污泥处理处置工艺的选择........................................................................30 4.5 污水及再生水处理工艺流程图................................................................32 第五章 污水处理厂主要构筑物设计 .......................................................................34 5.1 总体设计....................................................................................................34 5.2 高效 AO 工艺设计....................................................................................36 5.3 深度处理系统设计....................................................................................39 5.4 再生水工艺设计........................................................................................41 5.5 污泥处理处置系统设计............................................................................43 第六章 本工程设计特点及先进性 ...........................................................................46 6.1 设计特点及先进性....................................................................................46 6.2 工程经济指标............................................................................................48 第七章 结 论 .............................................................................................................49 7.1 工程规模....................................................................................................49 7.2 工程水质指标............................................................................................49 7.3 构筑物设计................................................................................................49 7.4 污水处理工艺确定....................................................................................50 7.5 再生水工艺确定........................................................................................50 7.6 污泥处理工艺确定....................................................................................50