Construction And Application Of Coastal Artifical Wetland Park Based On Sewage Treatment

At present, the phenomenon of shortage of water resources is very serious in our country, and taking the sewage as new water resource has gradually become the new concept of sustainable development. The artificial wetland system is an integrated ecological system, with the advantages of buffer capacity and easy processing, which can reach the second or higher level in general. It uses the principle of species co-occurrence,material recycling in the ecological system and the one called structures related to functions principle. In promoting the benign circulation of water pollutants, we can achive the goal of giving full play to the potential production of resources, preventing the environmental recontamination and getting the optimal benefit produced by the sewage treatment and utilization.Urban wetland is a peri-urban ecological crisscross area which has a strong sensitivity. Once the urban wetland is destroyed, it would directly affect the sustainable development of the city.,The protection and development of urban wetland have attracted high social concern because of the particularity of its function and the unrecoverable of the system. People have an all-time high enthusiasm for the protection and useness of ruban wetland, and start positively explorate to the develpoment model of the special land type. ShanHaitian tourist resort located in the centroid of Rizhao City tourist routes and is becoming promient in the role of driving the tourism of Rizhao City. There is a piece of untapped coastal wetland coexisted by saltwater and freshwater in the junction region of Taigong Three road and ShanHaitian road,, the wetland covers an area of about112acres (74667m2).Large amounts of sewage have flew into the coastal wetland and rivers due to the absence of large sewage purification facilities and through naturally decomposited by wetland. But with the development of economy and the increasing of the surrounding residents, sewage emissions have greatly exceeded the capacity of the wetland.This article selects the sewage treatment of artificial wetland park as the main research object. Combining with the related literature research, it analyses the current situation of sewage teratment of artificial wetland at home and abroad, points out the existing problems, probes into the corresponding solving methods on the basic of detailed investigation Artificial wetland is a new technology used in sewage treatment, it just has a relative short history in application, and defect awareness in engineering. This paper provides a relative comprehensive knowledge not only from the mechanism, design to maintenance and management, but also from the research results to practice,gives a detail summary in concluding and improving, in order to draw lessons from the application of the technology, and expand people’s understanding and awareness to the technology. The main contents of the article include:The first part briefly introduces the research background, purpose, significance, research methodology and framework, summarizes the sewage treatment technology of artifical wetland t and its application situation both at home and abroad through the literature metho.The second part analyses the characteristics, composition, classification, mechanism and design process of the sewage treatment technology of artifical wetland in a systemic way.The third part introduces the situation of Wetland Park, from the classification, function, domestic and foreign construction and other aspects.The fourth part describes the wetland park area, structure and layout, plant selection, design index and ect in a detail way that based on the design parameters of sewage treatment of coastal wetland park.The fifth part analyses the typical case of sewage treatment of wetland park in the Rizhao City tourist holiday zone. It analyses the operation of sewage treatmment of coastal artifical wetland park from the current situation, function orientation, engineering and technical analysis, planting technology analysis, water system planning, aesthetic interaction design of natural environment application of new ecological purification technology and plant choice and planting. It also appraises the wetland purifying effects and its environmental impact evaluation.The sixth part is the summary and conclusion of the full article.