FU Xiaoyan, LI Zhenguo, LI Xiangyu, YANG Meng, LIU Lianlian, XIA Ying, SUN Zhen, LI Zhiyuan. ANTIBIOTIC POLLUTION CHARACTERISTICS AND ECOLOGICAL RISK ASSESSMENT OF WATER BODIES AROUND LIVESTOCK AND POULTRY BREEDING IN DALIAN[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(4): 164-169. doi: 10.13205/j.hjgc.202304023
Citation:
LIN Yi, CHEN Lei, ZHOU Guohua. NUMERICAL SIMULATION ON WATER PURIFICATION BY CIRCULATING ENGINEERING OF A LARGE LANDSCAPE WATER SYSTEM IN NORTHERN CITIES IN CHINA[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(1): 52-59,77. doi: 10.13205/j.hjgc.202201009
FU Xiaoyan, LI Zhenguo, LI Xiangyu, YANG Meng, LIU Lianlian, XIA Ying, SUN Zhen, LI Zhiyuan. ANTIBIOTIC POLLUTION CHARACTERISTICS AND ECOLOGICAL RISK ASSESSMENT OF WATER BODIES AROUND LIVESTOCK AND POULTRY BREEDING IN DALIAN[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(4): 164-169. doi: 10.13205/j.hjgc.202304023
Citation:
LIN Yi, CHEN Lei, ZHOU Guohua. NUMERICAL SIMULATION ON WATER PURIFICATION BY CIRCULATING ENGINEERING OF A LARGE LANDSCAPE WATER SYSTEM IN NORTHERN CITIES IN CHINA[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(1): 52-59,77. doi: 10.13205/j.hjgc.202201009
Jinghu Lake is the largest landscape lake in Sino-Singapore Tianjin eco city. It connects Gudao River and Huifeng River to form a unique water ecosystem, which is the representative of large-scale landscape water system in northern cities. Thus, the water system environment attracted great attention. Based on the investigation and analysis of the construction of water circulation purification facilities and the implementation of water quality improvement projects in Jing water system, Delft3D FM model was built to study the hydrodynamic and water quality evolution process in Jing water system under different engineering schemes, whose results were further evaluated to verify the engineering effect on water quality improving. The results indicated that the water quality of Jing water system was obviously affected by rainfall. By comparing the changes of water quality before and after the flood season, the concentration of COD and TP increased by 10% after the flood season, even increased by 60% in some river sections, but the NH3-N decrease by 20%~30% after the flood season. Furthermore, through the engineering measures, such as setting up water replenishment, removing isolation dam, and installing circulating pump & drainage pump, the hydrodynamic condition of Jing water system was greatly improved, and NH3-N and TP generally met the requirements of class IV water standard, for that NH3-N was reduced by 3%~25%, and TP was reduced by 6%~50%. Engineering measures should take water environment background, pollution source control, water conservancy facilities operation and other factors into account, to develop water quality improvement strategy.
XUE C H,YIN H L,XIE M.Development of integrated catchment and water quality model for urban rivers[J].Journal of Hydrodynamics,2015,27(4):593-603.
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FU Xiaoyan, LI Zhenguo, LI Xiangyu, YANG Meng, LIU Lianlian, XIA Ying, SUN Zhen, LI Zhiyuan. ANTIBIOTIC POLLUTION CHARACTERISTICS AND ECOLOGICAL RISK ASSESSMENT OF WATER BODIES AROUND LIVESTOCK AND POULTRY BREEDING IN DALIAN[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(4): 164-169. doi: 10.13205/j.hjgc.202304023
FU Xiaoyan, LI Zhenguo, LI Xiangyu, YANG Meng, LIU Lianlian, XIA Ying, SUN Zhen, LI Zhiyuan. ANTIBIOTIC POLLUTION CHARACTERISTICS AND ECOLOGICAL RISK ASSESSMENT OF WATER BODIES AROUND LIVESTOCK AND POULTRY BREEDING IN DALIAN[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(4): 164-169. doi: 10.13205/j.hjgc.202304023
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