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Bacteriology Research And Simulation Of Water Quality In The Distribution Network

Posted on:2008-04-02Degree:MasterType:Thesis
Country:ChinaCandidate:Q YuFull Text:PDF
GTID:2132360245991309Subject:Environmental Engineering
Abstract/Summary:PDF Full Text Request
Water, is the source of life. Anybody can't live without water, such as drinking water, living water and producing water etc. And to supply safe drinking water is more important. Since long ago, more attention has been put on the research of water quality of the water treatment plant outlet, and the regard to the contamination of water quality of distribution network is not enough. But the distribution network is an important part in the whole water supply systems, and it plays a key role in protecting security of water supply. The diversification of water quality of the distribution network has been researched by this paper, especially the microbiology parameters and the influencing factors. This is a significant research.Firstly, this paper chooses the representative distribution network of a north college as the experimentation area. According to the water power result and the disposal principle of water quality monitoring point, this paper sets up 6 points, including the second-supply water tank. These 6 points represent the entrance, middle, twig and the second water supply establishment of the distribution network respectively. The water quality has been monitored for long times, and its parameters have been analyzed, including the diversification and influencing factors. According as the large numbers of data, this paper establishes the HPC forecast model. This model has been applied for the entrance, middle and the end of the network and the result is well.Secondly, this paper establishes simulative distribution network using the diversiform material at the lab and monitors the water quality continuously. The result has been compared by the actual network. The whole diversification direction is coincident. But there is some difference all the same. The exterior configuration and element composing of the dirty on the pipe wall about the galvanization, PPR and ABS have been analyzed. Before this haven't been reported in our country.Again, this paper uses the Api reagent piece of France Biomerieux Company to identify the bacteria in the distribution network firstly. Risk of the bacteria which have been identified has been analyzed. Most of them are conditional pathogenic bacteria. It's a potential danger for people's health. This is very important for the microbiology water quality research and it's the base of research about the control of microbiology water quality contamination of the distribution network.Lastly, via the research of distribution network in the experimentation area and simulation network in the lab, this paper brings forward the effective measures about how to control the water quality contamination, reduce the microbiology risk and improve the water quality of the distribution network.
Keywords/Search Tags:Distribution network, Water quality monitoring, ANN, Forecast model, Api
PDF Full Text Request
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