污水处理厂排水方式优化调度模拟与研究

发布时间：2018-06-08 02:06

本文选题：EPDRIV1模型 + 松花江(哈尔滨段)　；参考：《中国水利水电科学研究院》2015年硕士论文

【摘要】：近些年为了改善水环境,我国修建了大量污水处理厂,改变了过去流域脏臭的现象,但是随着污水处理厂集群发展,排放量增大,排污混合区水质恶化又变成一难治问题,文章从减少排放量和优化污水处理厂排水方式两方面探论对混合区治理的必要性。本文以松花江(哈尔滨段)为例进行具体分析,采用EPDRIV1水质模型对水质变化情况进行模拟,完成了以下几方面的研究工作。1、用水质模型EPDRIV1对水质进行模拟,模拟之前,对参数进行灵敏度分析和率定,对模型进行验证。2、对模拟结果进行分析,得出群力污水处理厂、阿什河入河口、呼兰河入河口部分污染物浓度偏高,即排污混合区污染严重；对混合区按排污口分段并计算各段水环境容量；建立水环境容量与排污量的动态响应关系,为保证各段污水厂排放量不超过水环境容量提供依据。3、根据实时监测的流量建立流域流量和不同污水处理厂不同时刻排放量的动态响应关系,由此确定智能调控方式。4、在污染负荷一定的情况下,对污水处理厂按照连续均匀排放、半天排放半天不排放以及智能调控三种排放方式进行模拟,分别对其CBOD和氨氮浓度进行分析,结果显示智能调控两种污染指标浓度最低。因此,在污染负荷一定的条件下,智能调控是最优的排放方式。
[Abstract]:In recent years, in order to improve the water environment, a large number of sewage treatment plants have been built in China, which has changed the phenomenon of dirty odor in the past watershed. However, with the development of sewage treatment plant cluster, the discharge quantity increases and the water quality in the sewage mixed area becomes a difficult problem. This paper discusses the necessity of treating mixed area from two aspects of reducing discharge and optimizing drainage mode of sewage treatment plant. This paper takes Songhua River (Harbin section) as an example to carry on the concrete analysis, uses the EPDRIV1 water quality model to carry on the simulation to the water quality change situation, has completed the following several aspects research work. 1, uses the water quality model EPDRIV1 to carry on the simulation to the water quality, before the simulation, The sensitivity analysis and rate determination of the parameters, the validation of the model, and the analysis of the simulation results show that the concentration of pollutants in the Estuary of the Ashi River and the Estuary of the Hulan River is on the high side, that is, the pollution in the sewage mixed area is serious; The water environmental capacity of each section is calculated according to the sewage discharge outlet, and the dynamic response relationship between the water environmental capacity and the sewage discharge is established. In order to ensure that the discharge of each sewage plant does not exceed the capacity of water environment, the dynamic response relationship between the discharge of river basin and the discharge of different sewage treatment plants at different times is established according to the flow rate monitored in real time. From this, the intelligent control mode .4. under the condition of certain pollution load, the sewage treatment plant is simulated according to continuous and uniform discharge, half-day discharge without discharge and intelligent regulation and control of the three discharge modes. The CBOD and NH3-N concentrations were analyzed, and the results showed that the concentration of the two pollution indexes was the lowest. Therefore, intelligent control is the best emission mode under certain pollution load.
【学位授予单位】：中国水利水电科学研究院
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X703

【参考文献】