每天15万立米活性污泥法处理生活污水的工艺设计+CAD图纸(2)
The main route for the treatment is sewage flow through the medium grill, then flow into
pumping station, and then flows through a fine grid, aerated grit chamber,then it flows
through the primary settling tank, anaerobic anoxic oxic biological reaction tank, secondary
sedimentation tank, disinfecting tank, finally it flows through PAP metering tank pour into class
water. The main route for the treatment is sludge from the reactor sludge concentration
delivered by the sludge pump directly to the sludge thickener,sludge dewatering house
dehydrated ,and finally sinotrans disposal.The ground elevation of 0.00m,highest water
level is 11.518m.The various pollutants removal is CODcr,55%;BOD5,85%;SS,92%;NH3-N,
51;TN,67%;TP,83.3%.The total investment cost of the wastewater treatment plant is 209.2878
million yuan, and the operating costs the treatment costs is 0.59 yuan every ton. The design
of the sewage treatment plant structures, process flow, and elevation and layout
preliminary design.
Keywords: Nitrogen and Phosphorus Removal; AAO process; Process design;
Sewage Treatment
目 录
1绪论 1
1.1 设计任务及依据 1
1.1.1 设计任务 1
1.1.2 设计水量 1
1.1.3 设计依据 2
1.2 设计原则及意义 2
1.2.1 设计原则 2
1.2.2 设计意义 3
2设计工艺选择 4
2.1 AB工艺 4
2.2 阶段曝气活性污泥法 4
2.3 氧化沟工艺 5
2.4 AAO工艺 6
2.5 工艺比较与选择 6
3处理工艺设计 9
3.1 中细格栅的设计 9
3.1.1格栅的设计参数 9
3.1.2中格栅的计算 9
3.1.3 细格栅的计算 12
3.2 进水泵房 15
3.2.1 泵房设计的条件 15
3.2.2 泵房的计算 15
3.3曝气沉砂池 16
3.3.1 曝气沉砂池设计参数 16
3.3.2 曝气沉砂池的计算 17
3.4 配水井 19
3.5 初沉池 20
3.5.1初沉池的参数 21
3.5.2 初沉池池的计算 21
3.6 A2O工艺 24
3.6.1 A2O生物反应池设计参数 24
3.6.2 A2/0生物反应池的尺寸计算 25
3.6.3 反应池进、出水系统计算 28
3.7 鼓风机房 31
3.8 二沉池 32
3.8.1 二沉淀池的参数 32
3.8.2 二沉池的计算 32
3.9 接触消毒池 37
3.9.1 接触消毒池的设计参数 37
3.9.2 接触消毒池的计算 38
3.9.3 加氯间 39
3.9.4 接触消毒池的管路计算 39
3.10 污泥泵房 40
3.10.1 二沉池回流污泥 40
3.10.2 混合污泥 40
3.11 污泥浓缩池 41
3.11.1 污泥浓缩池设计参数 41
3.11.2 污泥浓缩池的计算 41
3.12 污泥脱水机房 44
4污水处理厂总体布置 46
4.1平面布置 46
4.1.1 平面布置的原则 46
4.1.2 平面布置 46
4.2 高程布置 46
4.2.1 高程布置原则 46
4.2.2 高程布置 47