毕业论文：城镇污水处理厂的污水处理设计.doc

毕业论文:城镇污水处理厂的污水处理设计
摘要
本次毕业设计是以相关的资料为依据设计一座城镇污水处理厂其日处理量近期为10万立方米由于城市污水的主要成分为有机物所以本次设计采用了氧化沟工艺主要任务是工艺流程选择及构筑物设计和计算
该污水处理厂的污水处理流程为污水经过粗格栅由泵房提升后流过细格栅进入沉砂池再进入氧化沟二沉池最后排入江河
在完成污水和污泥处理构筑物的设计计算后根据平面布置的原则综合考虑各方面因素进行了污水厂的平面布置据污水的流量对连接各构筑物的管渠进行了选径确定流速以及水力坡降然后进行了水力损失计算据水力损失计算对污水和污泥高程进行了计算和布置
在最后阶段完成对平面图高程图及各种主要的构筑物的绘制
关键词污水处理Carrousel氧化沟脱氮除磷污泥浓缩
Abstract
This graduation project is take the related material as the basis designs a town sewage treatment plant Its day process load in the near future will be 100000 cubic meters Because the city sewage principal constituent is anic matter therefore this design has used the oxidation ditch craft The main task is the selections of process flow and the designs and calculation constructions used in process flow
The process of the sewage treatment plant e across the coarse grille sewage was lifted up by pump and flow by thin- case- bar and then it enters the laminar flow sand pool oxidation ditch secondary sedimentation tank finally The water falls out through a pipe a long way out to river
After finishing calculation of design according to principle of laying consider the factors synthetically to confirm the place of the sewage factory According to flow volume of sewage we can select the foot-path confirm the velocity of flow and water conservancy slope then calculate water conservancy losses
In the end Floor plan profile in elevation and the other mainly structures drawing must finished
Key wordsoxidation ditch Phosphorus Sewage and Nitrogen Sludge concentratio
目录
摘要 1
Abstract 2
第一章设计概论 5
11 设计依据和设计任务 5
com 原始依据 5
com 设计内容和要求 5
com 设计目的 6
12 进出水水质 6
第二章工艺流程的确定 7
21 城市污水处理发展和现状 7
com 目前存在的问题 7
com 今后的发展趋势 8
22 污水生物处理方法比较 8
23 工艺流程的确定 13
com 工艺流程 13
com 污水处理部分 14
com 污泥处理部分 15
24 物料衡算 17
第三章污水处理系统 18
31 粗格栅 18
32 污水提升泵房 20
33 细格栅 21
34 沉砂池 22
35 均质池 24
36 氧化沟 25
37 配水井 30
38 二沉池 31
39 接触消毒池 33
310 加氯间 34
311 污泥回流泵房 34
第四章污泥处理系统 35
41 设计参数 35
42 污泥浓缩池 36
43 贮泥池 38
44 污泥稳定 39
45 脱水机房 39
4