涪陵区江南片区污水处理工程设计毕业设计08.docVIP

涪陵区江南片区污水处理工程设计 摘要 涪陵区江南片区污水处理厂，近期日处理水量为20万吨，远期日处理水量为25万吨。处理水主要对象是城市生活污水。生活污水中主要含有有机物、N、P。出水水质要达到一级标准B标准。本设计主要考虑提高N、P的去处率。 污水厂占地面积万平方米，包括远期预留。污水处理厂项目总投资估算为万元本设计主体工艺采用氧化沟——Carrousel2000型，氧化沟前设置厌氧池。 采用氧化沟不设初沉池，处理设施大大简化。氧化沟具有传统活性污泥法的特点，有机物去除率高，也具有脱氮功能。设置前置厌氧池提高释磷菌的释磷效果，从而提高磷的去除率。这样有机物、N、P的处理均满足要求。处理后的水经紫外线消毒后直接排入水体。剩余污泥经过气浮浓缩、脱水后泥饼外运或当作肥料。关键词：氧化沟;厌氧池;N;P Fuling District Jiangnan District of sewage treatment works design Abstract Jiangnan District of Fuling District, a sewage treatment plant, Recent processing capacity of 200,000 tons, the long-term processing capacity of 250,000 tons. Water is mainly targeted at the urban sewage water. Sewage contains organic matter, N, P. Effluent quality standards to achieve a standard B .The main design considerations to improve N, P destination rate. Sewage plant covers 410,000 square meters, including forwards reserved. Sewage treatment plants total investment of the project is estimated at 278.731 million yuan. Investment per ton of water to 1193.6 yuan. Water treatment costs per ton for 0.42 yuan. The main design process using oxidation ditch -- Carrousel2000 type. Oxidation ditch sets up anaerobic pond. For the whole process : Oxidation Ditch no primary settling tank, processing facilities greatly simplified. Oxidation Ditch traditional activated sludge characteristics, organics removal, nitrogen is also functional. Set prior to enhance anaerobic pond phosphorus release from the effects of phosphorus release, thereby increasing the phosphorus removal rate. This organic matter, N, P treatment can meet the demands. Treated water from the UV disinfection directly discharged into the water body. After the remaining sludge flotation concentrate, dehydration after cakes as fertilizer or progressed. Keywords : Oxidation Ditch; Anaerobic pond; N; P 目录 第一部分　设计说明书 1 总论 1 1.1工程概述 1 1.2设计原则 1 1.3设计规模及进出水水质 1 1.3.2进水水质 1 1.3.3出水水质 1 1.4设计基础资料 2 1.4.1气象条件 2 1.4.2工程地质条件 2 1.5处