Landscape Eutrophication Produce Algae And The Use Of Grass Filter And Clear Up Algae To Treating Landscape Eutrophication

With the improvement of living standards, whether it is residential quarters or office environment, the water is the prerequisite for more extensive landscape requirements. Whether landscape water use tap water or water depth, there evaporation caused by condensed water eutrophication material, bait caused by nutrient enrichment, as well as water pollution caused by surface runoff and other issues. Landscape water prevailing question is: as time goes on, deterioration of water quality and distributing the smell, breeding algae, fish and water hypoxia in the spring and autumn the large number of deaths. So, taking full advantage of the landscape environment, on the water body for micro-contamination control, water conservation will be played, and beautify the environment, reducing disease and the role of the benefit of mankind.Landscape water stationary or more for the poor mobility of closed water bodies, the pollution for more than micro-pollution .And generally has a short period, the small size of the waters and easy pollution, small capacity, low self-purification capacity, high aesthetic requirements, and on the lives of the residents and the impact of fish in the stream, it is apt to cause in water suspended substance increase, turbid degree increases, the content of organic matter, bacterium and Escherichia coli all increase. In the temperature appropriate, rich in N, P, and other nutrient water will breed algae, algae abnormal reproductive damage the ecological balance of the water body, causing eutrophication of water bodies, loss of landscape water features.Oxidation pond and land treatment technology at home and abroad has been more mature. Most people make oxidation pond and land treatment technology use separately, did not deal with oxidation pond and the principle of land as a complementary combined cycle process, nor used in landscape water eutrophication governance.At present, although biofilter and greenbelt have been used to deal with the landscape water, but also its starting point is only dealing with water, with no combination of green landscape environment and conditions, not with the water flow, not making the grass beacome a part of wetland and not considering economic indicators. In this paper, through the water and the surrounding landscape of green interaction, using oxidation pond and land treatment theory, researching landscape water treatment model, discussing landscape water removal efficiency of nitrogen and phosphorus, formed the oxidation pond and land treatment of combining theory landscape water treatment methods. Discussion on the minimum cost of landscape water, the relationship between green water filtration. landscape standards on the use of miscellaneous water even sewage discharge water emission standards for a water feasibility landscape, and eventually developed a mature landscape can be widely typical treatment mode.As some Ministry of Agriculture Animal Quarantine Waterscape for field testing, and in the laboratory created a landscape water processing model to study oxidation pond and land with the theory of landscape water deal with the removal of nitrogen and phosphorus, after four months of trial and on-site operating simultaneously to achieve the initial results, come to the following conclusions:(1) According to pilot certification, using oxidation pond and the land treatment theory of landscape water processing model has obvious effect of the removal of nitrogen and phosphorus, can be used as a model of the landscape to promote water.(2) Through pilot can be seen, landscape water processing model more appropriate land than water filtering system for the average: 0.010m~3/m~2·d (water / land area ? days) around; water distribution cycle: 7 days.