Research For Water Environmental Capability Of Seaside City

Because of the special nature of the geological and geographic conditions, the ecological environment is extremely fragile and sensitive coastal areas. With the deepening of reform and opening up, the coastal special economic zones, economic development zones and coastal petrochemical building, fire power plant, port terminal building, sewage and industrial waste water emissions to the coastal increasing water shortage, water pollution, salt water intrusion, ecological degradation and sea level rise, China has a strategy for sustainable development of coastal areas facing significant resources and the environment.Beihai City lies in south Gulf of Beibu, opulent sunshine adequate rainfall, a total of 93 rivers are injected Gulf of Beibu, the largest Guangxi coastal river-Nanliu river go through the territory of city flowing southward into the sea., The city has the more abundant water resources, but because of an uneven distribution of time and space, there are still some local water shortages. Especially in the last few years, with economic development, increasing pollution, the lack of water environmental awareness and environmental resources conspired with blind exploitation of water surface and coastal waters have caused serious pollution, water capacity of the environment to decrease : oils, organic pollution are very conspicuous; Red tide, seaweeds appeared frequently; Because of excessive use of groundwater, also emerged seawater invasion. To the Beihai City People's improved quality of life, sustainable economic development and environmental protection constitutes a threat.The analysis based on validated information of the status of Beihai City's water environment through pollution evaluation, identifying the main sources of pollution and pollutants. Through water quality evaluation, make a judgment of river water pollution, water analysis of environmental issues. According to the Beihai City jointed river water, water-rich but time and the uneven distribution of runoff, and the tide of human factors, sewage characteristics and other factors and constraints, significant differences in time and space characteristics of the non-flu flows of rivers and river flows sense of a different choice models and Victoria produced a sense of one-dimensional wave pool simulation models to water quality, according to hydrological data to determine the parameters to the functional area of the river, on the basis of use within selected models to the study of the characteristics of rivers and ammoniac nitrogen pollutants CODcr Environmental conditions in the river design capacity measurement; According to results measurement, the results show that at present, Beihai City of surface water remaining capacity of the environment, but because of a sugar refinery along river of Nankan pollution, the status quo emissions beyond its permitted emissions. Beihai City District pollutant discharge water environment functional capacity of the environment and its water distribution is not matching. According to the Beihai City water capacity of the environment, in accordance with the principles of total control, environmental capacity to control water use responses as follows :(1) Adjust and optimize the industrial structure, increase production efficiency, reduce pollution.(2) Cleaning up and to improve pollution source especially Industrial and life(3) Development of ecological agriculture, and reduce pollution(4) According to the current capacity measurement results for total control targets, formulate and implement a plan to reduce pollutants deadline(5) Strengthen water quality testing and monitoring, and establish a water quality monitoring network for the protection and management of water resources(6) Establish water environmental management information systems, provide a basis for management and decision-making for water resources management...