1、摘要摘要 辽宁省 TZG 市排水工程规划及污水处理厂的设计内容为:污水管道的规划与设计、 雨水管道的规划与设计及污水处理厂的设计。 该市面积约为 1600 多公顷,被铁路划分为三个区,其中一区人口密度为 310 人/公 顷,二区人口密度为 320 人/公顷,三区人口密度为 360 人/公顷,其中甲工厂(位于一 区)的排水量为 220 m 3/h,乙工厂(位于三区)的排水量为 280 m3/h,丙工厂(位于三 区) 的排水量为 330 m 3/h.在该市的南面有一条自东向西的河流, 河水的最高水位为 64m, 最低水位为 60m,常年主导风向为东南风,城市综合径流系数为 0.64,冰冻线为-1.
2、00m. 本工程设计采用分流制排水体制。污水处理厂设在河的下游,城市的西南部,远离 城区, 占地约 23 公顷,采用二级处理,处理水量为 131401m/d, 进水 BOD 为 227.37 g/m 3。 雨水直接排入河流中,为重力流。 平面布置在满足工艺流程的前提下,利用原有地形设置,布置大致分为四个区:生 活区、污水处理区、污泥处理区、预留地。要求布置紧凑、进出水流畅、节省用地。 关键词:污水管道;雨水管道;污水处理厂;分流制 1 Abstract The design elements of TZG City, Liaoning Province drainage works plann
3、ing and design of a sewage treatment plant: Sewage pipelines planning and design, stormwater pipelines planning and design and the sewage treatment plant design. The area of the city is more than one thousand six hundred hectares, it is divided into three areas By the railway, the population density
4、 of the first area is 310 persons / ha, the population density of the second area is 320 persons / ha, the population density of the third area is 360 persons / ha.The displacement of A factory(Located in the first area )is 220 m3 / h, the displacement of B factory (Located in the second area ) is 280 m3 / h, the displacement of C factory(Located in the third area )is 330 m3 / h. In the south of the city there is a river from east to west, the rivers highest level is 64m, the minimum water