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2020年北苑污水处理厂可行性研究报告DOC

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更新时间:2020/10/27(发布于北京)

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随着人口不断增长和经济飞速发展,我国面对的环境污染问题越来越严重, 特别是水体的污染更加突出。为了防止污水排放对环境的污染,九十年代以后, 我国修建了大量的城市污水处理厂,各种新型的污水处理工艺这时也大量引入 我国,这促使我国的污水处理工艺理论水平得到迅速提高。本文介绍的北苑污 水处理厂就是引进国外的污水处理工艺-AZENIT-P,虽然这种工艺目前在国外 并不是最新、最先进的,但是在国内尚无应用先例,在相同的情况下给了我们 一个更多的选择。 本文充分了解了国内外对城市污水处理的现状和技术水平。针对北京市北 苑地区的实际情况,通过对本污水处理厂服务区现状用水量、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。根据本地区污水综合水质 的实际调查和参考本区域附近污水处理厂的进水水质,确定本厂设计进水水质; 根据当地环保部门要求确定本厂的出水水质。本文详细分析了污水厂进水中污 染物构成,介绍了针对各种污染物的去除工艺,选定了 2 种适合于本厂的水处 理工艺:CAST 和 AZENIT 工艺,并从工程总投资、运行管理的方便性和经济 性、工艺运行的可靠性、占地面积等方面进行比较,最终确定 AZENIT 工艺为 该厂的污水处理工艺。 本文最终论证了北苑污水处理厂采用 AZENIT 污水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 AZENIT 除磷脱氮 硝化 反硝化Abstract Along with the population growth and development of science and technology, the problem of environmental pollution is more and more hard. Specially, water pollution is the emergent question. Many municipal sewage plants had been built after the nineties last century. The quantity of sewage plant was increased rapidly.The theoretical level of sewage disposal technology advanced through much new technology is introduced into China.The Beiyuan Water Treatment Plant is an example for use AZENIT-P technology that introduced from other country. It is not the most advanced technology in the world, but it is new in China, it gives us a new choice in the same situation. The thesis has studied current situation and engineering level that the municipal sewage handles at home and abroad sufficiently. Process scale by having ascertained the sewage treatment factory's to service area current situation,the forward and recent forecast with the water yield. The reality according to our region foul water inquires into and consults water-entering area vicinity sewage treatment factory water quality; ascertain a factory designing water-entering water quality. Be based on the local environmental protection branch demanding to ascertain a factory's putting up water water quality. Pollution composes water-entering middle of this analytical detailed thesis foul water factory. Have introduced the takeoff handicraft specifically for various pollution. Selected 2 kinds appositenesses water treatment handicraft in the factory: CAST and AZENIT technology. Secondary together project total investment, work administrative expedience and economy, reliability, land area and so on aspect be in progress comparatively, ultimate for sure AZENIT be that factory sewage treatment technology. The main body of the article has been expounded and proven ultimately adopt the AZENIT sewage treatment handicraft technology route, is fit to owe area, that factory reality,the technology is advanced, economy is pragmatic, safety is reliable, have feasibility. Key words: sewage treatment, azenit; P and N removal, bio-nitrification, bio-denitrification目 录 第一章 前 言 ..........................................1 1.1 我国目前城市污水处理现状 ................................... 1 1.2 本报告的研究内容 ........................................... 3 第二章 项目背景 .........................................5 2.1 项目地点 ................................................... 5 2.2 自然条件及现状 ............................................. 5 2.3 区域排水现状 ............................................... 6 2.4 建设规模 ................................................... 7 2.5 进出水水质 ................................................. 9 2.6 处理厂厂址 ................................................ 10 第三章 工艺选择 ........................................11 3.1 工艺处理方案确定的原则 .................................... 11 3.2 城市污水污染物去除的机理简述 .............................. 11 3.3 比选工艺方案介绍 .......................................... 18 3.4 比选工艺的确定 ............................................ 24 3.5 污泥处理工艺方案 .......................................... 28 第四章 比选工艺设计 .....................................34 4.1 设计参数 .................................................. 34 4.2 工艺流程 .................................................. 35 4.3 AZENIT工艺设计 ............................................ 37 4.4 CAST工艺设计 .............................................. 49 第五章 总图设计 .........................................55 5.1 厂区总平面布置 ............................................ 55 5.2 管线综合、道路、绿化设计 .................................. 60 5.3 采暖、通风、空调 .......................................... 615.4 厂区给排水 ................................................ 62 第六章 工程投资与成本分析 ...............................63 6.1 工程投资 .................................................. 63 6.2 成本分析 .................................................. 64 第七章 推荐方案的确定 ...................................66 第八章 结 论 ..........................................68