[排水给水设计文档] 单沟工艺的城市污水厂初步设计

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摘  要
我国是个水资源丰富的国家；但人均占有量确很少。随着经济的迅猛发展我国的可用水更是受到严重污染：根据统计,我国的江河湖泊和水库中,已经受污染的约占82.3%,全国有监测系统的1200条河流中，已有850条受到污染。对此国家规定城乡以上的地方都必须建污水处理厂。在此背景下本设计研究的重点就是采用日处理量8万t/d的卡鲁赛尔2000氧化沟处理城市污水，进入氧化沟的污水经过搅拌、曝气处理后排出的水达到国家规定的排放标准。本文设计介绍了氧化沟工艺的特点及设计过程。本设计是某某城镇污水处理厂的初步设计和施工图设计。该处理厂处理城市污水,水质较复杂：
五日生化需氧量（BOD5）：150mg/L；
悬浮物（SS）：220mg/L；
化学需氧量（CODcr）：250mg/L；
NH3-N：30mg/L；
TP：2-5mg/L
处理后的水质要求：
BOD5≤20/L；
SS≤20/L；
CODcr≤60/L；
NH3-N≤20/L；
TP≤1mg/L
关键词：污水厂处理初步设计  单沟工艺氧化沟  污水处理厂  卡鲁赛尔2000

Abstract
Our country is a country rich in water resources; But few truly per capita. Along with the rapid development of economy of our country water is severely contaminated: according to statistics, China's rivers and lakes and reservoirs, already contaminated accounted for about 1, across the country have monitoring system, existing 1200 river 850 polluted. This state provisions must be above place rural building wastewater treatment plant. In this context is the focus of research papers flashed by day 3 million t/d capacity of cernet 2000 oxidation ditch processing salomon kalou urban sewage, enter the oxidation ditch sewage after mixing, aeration back to deal with the water out of the state of the prescribed discharge standards. This paper introduces the design of the oxidation ditch process features and design process.
The biochemical oxygen demand of five days(BOD5 ): 150mg/L;
Suspended substance (SS ): 220mg/L;
The chemical oxygen demand (CODcr ): 250mg/L;
NH3-N: 30mg/L;
TP：2-5mg/L
Treated water quality is required:
BOD5≤20mg/L; SS≤20mg/L; CODcr≤60mg/L
NH3-N≤20mg/L;  TP≤1mg/L
Keywords： Sewage treatment plant preliminary design Single-ditch
Sewage treatment plants Salomon kalou cernet 2000
排水毕业设计文档-单沟工艺的城市污水厂初步设计(1)