Scenic Water Body Quality Change And Control Technology In Tianjin Airport Industrial Park

Under the pressures of water resources shortage, serious water pollution and rapid economic development, urban water environment pollution is more and more serious, which influences accord sustainable development between human being and nature.Scenic water body in Tianjin Airport Industrial Park was the research target. Combination of current construction situation, planning scheme, water body control aim and area background condition of scenic river (or lake) in Tianjin Airport Industrial Park, space-time distribution law of scenic water body quality and eutrophication status was studied, existing problems of scenic water body was analyzed, and change trend of scenic water body was forecast. Based on the above, control measures of scenic water body quality in the area were put forward.It is found that except for special indexes changed for the better during 2005-2008, total nitrogen (TN), total phosphorus (TP) and other eutrophication indexes increased year by year. Lay separation of water body was clear, and eutrophication was more and more serious. In a part of river segmentation, black and odor occurred, which destroyed scenic and ecological functions of water body. Water body was at the middle-heavy eutrophication level. After analyzing space-time distribution law of water body and water quality variation, it was forecast that scenic water body would be worse.Based on the analysis of main factors influencing lake eutrophication, combining scenic water body shape, current situation of pump stations, local planning and water quality monitoring, some control measures on two aspects were put forward. One was improvement of current situation of water body, which included control of point sources, area sources and other outside sources and control of inner sources, microorganisms control and manual aeration to recover surface water environment. The other was maintenance measures of water body, which covered water body recirculation, constructed wetland, biological floating bed, river three dimensional greening, design of bank line and aquatic animal, etc.. By the utilizations of solar energy, wind energy and biomass energy, self-purifiction ability of water body was improved, which would realize ecological effect of scenic water body.