Abstract：Taking Dong Dongting Lake sediments as the research object. The effects of phophorus concentration and water quality of overlying water under in-situ control techology, including zeolite capping, calcium nitrate in-situ treatment and aeration, were analyzed, by laboratory simulation. The effects of the control of phosphorus concentration in overlying water in aerobic environment was very badly, when the dissolved oxygen saturation more than 20%, the concentration of phosphorus did not be changed in water, and the effects of control was followed by calcium nitrate in-situ treatment>zeolite capping>aeration3untreated. When under anaerobic condition, the effects of contral was followed by calcium nitrate in-situ treatment > aeration>zeolite capping > untreated. Under the hydrodynamic condition, the effects of control was followed by calcium nitrate in-situ treatment>zeolite capping>aeration>untreated, however, under different of hydrodynamic condition, the stability of phosphorus concentration to maintain in overlying water under zeolite capping was better than calcium nitrate in-situ treatment; Zeolite capping and calcium nitrate in-situ treatment were increased the oxygen consumption in water, and calcium nitrate in-situ treatment was the most significantly, and it was made the water lose reoxygenation function.
孙士权, 邱媛, 蒋昌波, 杨静, 聂小保, 谭万春, 吴方同. 原位技术控制湖泊沉积物中磷释放的研究[J]. 中国环境科学, 2011, 31(5): 845-851.
SUN Shi-Quan, QIU Yuan, JIANG Chang-Bo, YANG Jing, NIE Xiao-Bao, TAN Wan-Chun, WU Fang-Tong. Effect of in-situ control techology of phosphorus release in lake sediments by laboratory simulation. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(5): 845-851.
