广东某市排水工程设计(含CAD图)(任务书,开题报告,论文计算书30000字,CAD图6张)
摘 要
广东某市的地理位置在广东省北部，北部靠近湖南，东部靠近江西，东南面、南面和西面分别与本省河源、惠州、广州及清远等市靠近。全市占地1.85万平方公里，在广东省排名第二。该市地形大部分为山地丘陵，其次河谷盆地在周围，西部和南部地区有一条河流环绕。
根据该市总体规划，近期（2016年）该市人口为28万人，远期（2021年）为35万人，目前尚无完善的排水系统。本次设计采用雨水管污水管分别排出污水的排水体制。该区地形南部地势偏低，污水主干管设两条，次干管由北至南，主干管位于最南部，往中部收集一起排入至污水处理厂进行处理。雨水管网采用分散出口的布置形式，顺着地形坡度铺设，13条主干管分别就近排入河中。
本设计中污水处理厂的近期每天处理8万吨水，远期每天处理10万吨水。经过对该市污水水质水量以及相应的出水标准的分析，采用的生物处理工艺是氧化沟活性污泥法。污水总的处理过程为经粗格栅、提升泵房、细格栅及旋流沉砂池、厌氧池、氧化沟、辐流二沉池、接触消毒池后排放，出水符合国家一级A排放标准。在处理污水过程中产生的污泥经浓缩脱水后往外运送。
关键词：污水管网；雨水管网；污水处理；氧化沟
Abstract
There is a city located in the northern part of Guangdong Province, which north is HunanProvince.east is Jiangxi Province, Southeast, South and west is Heyuan, Huizhou, Guangzhou, Qingyuan and many other cities.The city holds 1.85 square kilometers of land area, ranking second in Guangdong Province. the city hasmany mountains and hills and also distributes valley basin,There is a river around in the west and the south of the city.
According to the city's overall planning, the recent (2016) population is 280 thousand and will reach 350 thousand in 2021.There is no perfect drainage system at present. This design uses drainage system which rainwater and sewage flow alone.The terrain in the south is lower, the sewage pipe network uses two main pipe, sub main pipe is set from north to south, the main pipe is located in the southwhich collects sewage water into the sewage treatment plant . The outlets of raining water networks are dispersedly arranged and there are13 pipelines buried with the trend of the slope,to send sewage to the rivers nearby .
The recent scale of the Sewage treatment plant is 80000m3/d，long-term scale reaches 100000m3/d. After investigation and analysis of the city sewage water quality and the corresponding effluent standards, this design uses the oxidation ditch activated sludge process as a biological treatment process. Sewage goes through the coarse grid, improve pumping station, fine grid and swirl sinking sand tank, anaerobic tank, oxidation ditch, web flow sedimentation tank, disinfecting tank and then be up to the national level 1A sewage discharge standard. The sludge generated in the water treatment process will be thickened and dewatered and made in mud cake, and then carried away.
Key Words：the Sewage pipe network; the rainwater pipe network; sewage treatment; oxidation ditch.
目录
摘 要 I
Abstract II
绪论 III
1.设计说明书 3
1.1总论 1
1.2设计原则及设计依据 3
1.2.1设计原则 3
1.2.2设计依据 3
1.3污水管网的规划设计 3
1.3.1基本原则 3
1.3.2排水体制的选择 4
1.3.3污水管网的管道定线 5
1.3.4污水管网的水力计算 6
1.4雨水管网的规划设计 7
1.4.1暴雨强度公式的确定 8
1.4.2雨水管道布置方案 9
1.4.3雨水管网的水力计算 9
1.5设计方案的选择 10
1.6污水处理系统 12
1.6.1格栅 12
1.6.2沉砂池 13
1.6.3厌氧池 13
1.6.4氧化沟 14
1.6.5二沉池 14
1.6.6配水井 15
1.6.7消毒池 16
1.6.8污泥处理系统 17
1.7污水厂布置 17
1.7.1平面布置 17
1.7.2高程布置 18
2.设计计算书 19
2.1污水处理构筑物设计计算 19
2.1.1规模及设计流量的确定 19
2.1.2原水水量及水质分析 21
2.1.3中格栅的设计计算 21
2.1.4细格栅的设计计算 23
2.1.5沉砂池的设计计算 25
2.1.6巴氏计量槽 27
2.1.7厌氧池的设计 28
2.1.8氧化沟工艺的设计 29
2.1.9化学除磷 33
2.1.10二沉池的设计 34
2.1.11综合井的设计 38
2.1.12接触消毒池的设计 40
2.1.13加氯间和氯库的设计 41
2.2污泥处理构筑物的计算 42
2.2.1污泥的一般处理工艺 42
2.2.2污泥井的设计 43
2.2.3污泥脱水部分 43
2.3污水处理厂平面布置计算 43
2.3.1水厂面积的规划及动定员 44
2.3.2附属构筑物 45
2.4污水处理厂高程布置计算 45
2.4.1污水处理构筑物高程布置 46
2.4.2污泥处理构筑物高程布置 49
2.5污水泵站设计计算 50
2.5.1预选水泵型号 50
2.5.2水泵相关计算 50
2.6技术经济概算 53
2.6.1污水处理厂估算 53
2.6.2单位水成本费估算 56
2.6.3管道工程投资估算 57
结 论 60
参考文献 61
附 录 62
附录1 污水设计流量计算表1 63
附录2 污水设计流量计算表2 71
附录3 污水水力计算表1 79
附录4 污水水力计算表2 89
附录5 雨水设计流量计算表 99
致 谢 114
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