Establishment And Optimization Of Municipal Wastewater Reuse System

The dissertation is composed of four parts, which is the analysis of necessity and feasibility of establishment of Municipal Wastewater Reuse System (MWRS), components, optimization, operation, management and maintenance of MWRS.It is summarized the situation of water resource and its pollution, the history and situation of wastewater reuse at home and abroad. The history and situation of wastewater reuse in China is reviewed, and analyzed the tendency, that is to establish the MWRS to solute the shortage of urban water resource, to realize the wastewater reutilization.By analyzing and predicting the market of reuse water, analyzing the municipal water demand and the structure of water source in recent years, analyzing the main methods and problems of wastewater reuse in China, it is put forward the necessity and feasibility of establishing MWRS, by supplying different quality water to satisfy the demand of toilet washing, automobile washing, green belt sprinkling, street flushing, fire demand and scenic water etc, which change the main method of wastewater reuse in china, utilizing municipal wastewater to relieve the urban water resource crisis.Combining the relative water quality standard at home and abroad, it is put forward the reuse water quality standard. It is analyzed the components of MWRS, and optimized the MWRS from two aspects, one is the selecting of process in the treatment and reclamation system, the other by using static evaluating index analyzed the cost and investment withdraw period concluded the optimum scale of MWRS is 40,000- 100,000m3/d, which can direct the scheme and use the urban water resource.In addition, it is expounded the operation, management and maintenance of MWRS, putting forward a series of economic and administration methods to impulse the municipal wastewater reutilization.ZHENG, Hui (Environmental Engineering ) Supervised by JIANG, Pei-hua...