工业园废水处理工程工艺设计.docVIP

工业园废水处理工程工艺设计 目 录 2 引言 3 1.项目概况 6 1.1 工程自然条件 6 1.2 设计依据 6 1.3 设计原则 7 1.4 主要设计标准和规范 7 1.5 设计要求 8 2.工业简介及工艺流程的确定 10 2.1废水处理工艺概况 10 2.2废水处理工艺流程的选择原则 11 2.3 工艺流程方案的确定 12 2.4 工艺流程简述 13 3.污水处理系统工艺设计说明 14 3.1 粗格栅间 14 3.2 细格栅间 14 3.3污水泵房 15 3.4 曝气沉砂池 15 3.5 缺氧池（生物接触氧化池） 16 3.6 好氧池（生物接触氧化池） 16 3.7 二沉池 17 3.8 鼓风机房 17 3.9 污泥脱水间 17 4设备选择 19 5平面布置原则 20 6高程布置原则 21 7工艺设计计算 22 7.1 粗格栅 22 7.2 细格栅 25 7.3 曝气沉砂池 28 7.4 A/O池（好氧池） 30 7.5 A/O池（缺氧池） 34 7.6 二沉池 37 7.7 高程计算 39 7.8 水泵 41 7.9 污泥部分 42 8.经济概算 44 结 论 45 致 谢 46 参考文献 47 摘 要 拟建的沈阳沈阳化学工业园废水处理工程位于，设计规模为日处理污水万吨，污水处理效果、设计排放标准达到国家城市污水处理厂二级排放标准。Abstract The graduation projects is the Shenyang Chemical Industry Park wastewater treatment process was designed to address the partial discharge of sewage to nearby streams, protection of local water resources and household water security, to address local economic development, water pollution problems.  The proposed Shenyang Shenyang Chemical Industry Park, Shenyang wastewater treatment project is located west of the design on the scale of 250,000 tons of sewage, sewage treatment, up to the national emission standards for the design of urban sewage treatment plants discharge standard, compliance of the effluent discharged into the nearby river .  In this paper, the characteristics of the project water quality, treatment technology and many other aspects of the factor analysis, have chosen a better effect than N A / O process. Through the grid, enhance the pumping station, grit chamber, A / O pools, two secondary sedimentation tank and other sewage treatment process, water up to National Comprehensive Discharge Standard Grade II, near the river as an important supply water source, urban technology landscape, green, building high-quality water to provide water, some of our city mitigate the problems of scarce freshwater resources.  The design of the grille to improve pumping station, grit chamber, A / O tank, secondary sedimentation tank and other structures, a