Research On The Restoration Technology For Bosten Lake

Bosten lake is the largest fresh water lake in Xinjiang and the largest inland-lake in China. Bosten lake is not only the main water resources of industry and agriculture and people's living for Yanqi basin and Korla and Liwei, but also the direct resources to rescue the endangered Tarim downstream vegetation. So it is most important for southern Xinjiang economic development and society stability. In a sense it is the life-load to Xinjiang. However, due to economic development and population expanding in recent years, The water environment of Bosten lake is becoming deterioration: low water level, decrease water area, manifold saline pollution; serious Beston lake eutrophication, serious the organic pollution deteriorate eco-environment, broken biological diversity. So, it will play an important realistic to study on the restoration of Bosten lake, to quest for the appropriate restorational technology, to resume the wetlands of Bosten lake, to construct new technique of waste water treatment.In allusion to the problem of Bosten lake's water environment, this text research some ecology rehabilitate technique which is broad, full blown and whose treatment effect is finer. Filly, the technology of constructed wetlands is considered as the key rehabilitative technique of Bosten lanke's water environment and the system of surface flow wetlands for wastewater is constructed. At the same time, surface flow wetlands accord with the situation of our country: China is under increasing pressure of water shortage and water pollution. Rational rse of water and searching forenvironment-friendly technology to promote sustainable economic and social development in our country have become more importantly. Compared with conventional techniques constructed wetlands which have many prominent features, such as high efficiency, low investment and low operating cost, low-technology, good water quality, environmental benefits, is consistent with the requirements of new technology.The main contents and results of this paper are as follows:(1) In this paper, based on analysis of natural eco-restoration technique, wetland water disposal system of Benton lake is presented, it's feasibility is analyzed, then s The system of surface flow wetlands for inflow of Huangshui river is constructed. To build the surface flow wetland, 4000ha wetland is needed, and there is about 5000ha natural wetland in Huangshui river, so it's meet the design requirement.(2) Water distribution channel is filled with zeolites and cobblestones;its Peripher is build by concrete, prevention of seepage is deal with concrete, and field pouring method is applied in construction. The T style cross section is selected for water distribution channel.(3) The Analytical after math which is derived from water quality analysis in Bosten lake indicates that the conspicuity linear relation consists in salinity and conductivity.(4) The experimental research analyse the change of the salinity and the frozen water. The results show that the salinity is raising with the increasing thickness of ice in the water, and the raising regular pattern is cure.