The Optimum Process Of Depurating Muddy Water For Liancheng Aluminium Industry Ltd.

China is one of the countries which are fruit with a lot of sand rivers. There are 42 rivers of which the annual average volume of sand conveying amounts to more than 1 million tons, and 60 rivers' annual maximum sand conveying volume rise above 1million tons. The direct annual volume of earth and sands entering the sea is 1.94 billion tons, of which ,the Yellow River shares 59%,the Changing River enjoys 25%,Haihe River and other rivers occupies 16 %.The Yellow River is the rare river with plenty of sands in the world.At present, traditional process is mainly adopted to treat high turbid and slight polluted water in domestic. That is saying, the process of condensation→sediment→ filtration →disinfection is used. This process possesses a lot of merits such as low investment, steady operation and simple maintenance and management, etc. However, being restrained by its disinfection function, the process's ability to delete organic matter inside the water is poor, especially its effectiveness are worse for eliminating organic matter of soluble low molecular. Therefore, it has become an important problem for the water treatment group on how to improve the production capacity of traditional water treatment process and ensure safer water supplying by optimizing the high turbid water treatment process and its operation way.The optimization of high turbid water treatment system mainly starts from the optimization of the process and the operation of water treatment system ,prove the feasibility of the optimized process by model test and productive trial, find out the existed problem and improve them, and make out the relevant ways of process operation and function parameters.The thesis takes the production practice of the Disinfecting Plant of Liancheng Aluminum Industry as the basis of the research , directs to the actual situation of worsen water quality at discharge when high muddy water enters the Disinfecting Plant during flood season in summer, on the fundament of widely studying foreign experiences of high turbid water treatment, and regards the theoretical analysis as direction ,gives the operation and management proposals to improve the existed water treatment process and optimize every production segment. It is aimed to provide theoretical proof for resolving the problem of high turbid water treatment of this plant and realizing full optimized operation of the water plant.China is one of the countries with a lot of high turbid rivers. The high turbidsurface water is the main part of our country' water resource. The problem of high turbid water is existed in many domestic water plant. Because of the area of earth being washed away gradually extending, thus causing the growing of sands volume for some rivers , water pollution getting worse ,the frequency of high turbid water getting higher and period duration becoming longer. This leads to bad influence to some plants' operation, especially to some medium and small scale plants. Being restrained by the conditions such as the process scale, site and capital,etc, these plants are difficult to be transformed or extended .Thus their normal production are influenced. The Disinfecting Plant of Liancheng Aluminium Industry is an exact typical example among traditional high turbid water treatment process. To optimize the existed process will not only resolve the problem of water supply in Liancheng Aluminum Industry and make achievement for saving energy, cutting cost and increasing efficiency, but also strengthen the experiences on the study of high turbid water treatment to be shared by same type of water plant. Consequently, the research of this subject has practical value in some scale.