污水處理廠排水方式優(yōu)化調(diào)度模擬與研究
發(fā)布時(shí)間:2018-06-08 02:06
本文選題:EPDRIV1模型 + 松花江(哈爾濱段); 參考:《中國水利水電科學(xué)研究院》2015年碩士論文
【摘要】:近些年為了改善水環(huán)境,我國修建了大量污水處理廠,改變了過去流域臟臭的現(xiàn)象,但是隨著污水處理廠集群發(fā)展,排放量增大,排污混合區(qū)水質(zhì)惡化又變成一難治問題,文章從減少排放量和優(yōu)化污水處理廠排水方式兩方面探論對混合區(qū)治理的必要性。本文以松花江(哈爾濱段)為例進(jìn)行具體分析,采用EPDRIV1水質(zhì)模型對水質(zhì)變化情況進(jìn)行模擬,完成了以下幾方面的研究工作。1、用水質(zhì)模型EPDRIV1對水質(zhì)進(jìn)行模擬,模擬之前,對參數(shù)進(jìn)行靈敏度分析和率定,對模型進(jìn)行驗(yàn)證。2、對模擬結(jié)果進(jìn)行分析,得出群力污水處理廠、阿什河入河口、呼蘭河入河口部分污染物濃度偏高,即排污混合區(qū)污染嚴(yán)重;對混合區(qū)按排污口分段并計(jì)算各段水環(huán)境容量;建立水環(huán)境容量與排污量的動(dòng)態(tài)響應(yīng)關(guān)系,為保證各段污水廠排放量不超過水環(huán)境容量提供依據(jù)。3、根據(jù)實(shí)時(shí)監(jiān)測的流量建立流域流量和不同污水處理廠不同時(shí)刻排放量的動(dòng)態(tài)響應(yīng)關(guān)系,由此確定智能調(diào)控方式。4、在污染負(fù)荷一定的情況下,對污水處理廠按照連續(xù)均勻排放、半天排放半天不排放以及智能調(diào)控三種排放方式進(jìn)行模擬,分別對其CBOD和氨氮濃度進(jìn)行分析,結(jié)果顯示智能調(diào)控兩種污染指標(biāo)濃度最低。因此,在污染負(fù)荷一定的條件下,智能調(diào)控是最優(yōu)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.
【學(xué)位授予單位】:中國水利水電科學(xué)研究院
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:X703
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