氧化沟法处理城市废水的工艺设计..docxVIP

**学院毕业设计设计题目：氧化沟法处理城市废水的工艺设计系别：环境与化学工程系班级： 12环本2班姓　　名：*** 指导教师： *** ****年**月**日氧化沟法处理城市废水的工艺设计摘要众所周知，地球是水的星球，水大概占到地球表面积的五分之四，然而地球的淡水资源确特别少。近些年来，随着中国城市化和工业化进程的发展，我国的污水废水排放也是与日俱增。城市污水的重要来源：（1）生活污水，主要来自于家庭生活用水，办公费谁公共设施废水和雨水。(2）工业废水，工业生产中用于冷却洗涤等的废水。城市污水里面所含生活污水较多，生化性良好，一般较好处理。本次设计的主要内容是80000m3/d的某城市污水处理厂氧化沟工艺设计，本次设计的主体工艺是改良式卡鲁塞尔氧化沟工艺，污水通过粗格栅，提升泵，细格栅，沉砂池，改良式卡鲁塞尔氧化沟，消毒间等各个工艺而达到出水要求。关键词：城市污水处理改良式卡鲁塞尔氧化沟主体工艺Oxidation ditch process of urban wastewater treatment process designAbstractPlanet, it is well known that the earth is tax water accounts for about of the surface of the earth, but the earths fresh water resources is a particular less. In recent years, with the development of Chinas urbanization and industrialization process, sewage waste wa -ter emissions in China is also growing.An important source of urban sewage: 1. The life sewage, water mainly comes from the home life, office who public facilities, waste water and rainwater. 2. Industrial waste water, industrial production is used for cooling and washing wastewater.Urban wastewater contains so many domestic sewage inside, biochemical, general good processing. The main content of this design is 80000 m after a/d city sewage trea- tment plant oxidation ditch process design, the main body of the design process is improved carrousel oxidation ditch process, the sewage through the coarse grid, lift pump, fine grille, grit chamber, improved carrousel oxidation ditch, between each process such as disinfection and meet the requirements of the water. Key words: urban sewage treatment improved carrousel oxidation ditch main process目录1 引言12工艺设计42.1设计水量42.2本次设计的各项进出水指标42.3处理程度计算：42.4设计任务42.5设计依据42.6 污水处理过程中的主要原则52.7排水出路52.8污泥出路53污水处理工艺方案选择63.1设计原则63.2主要污水处理工艺的比较64主体构筑物的设计计算124.1粗格栅的设计计算124.1.1设计参数124.1.2设计计算124.2提升泵154.2.1提升泵的选型154.3细格栅的设计计算154.3.1设计参数154.4 沉砂池的设计计算184.4.2设计计算184.5改良式卡鲁塞尔氧化沟的设计计算204.5.1设计计算参数204.5.2设计计算214.6二沉池的设计计算274.6.1设计计算参数274.6.2设计计算274.7消毒池294.7.1投药量计算294.7.2设备选型294.8污泥浓缩池