Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2002, Vol. 13 ›› Issue (2): 115

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Improvement of Taihu water quality by the technology of immobilized nitrogen cycle bacteria

LI Zheng-Kui1, PU Pei-Min2, HU Wei-Pin2, HU Chun-Hua2, CHEN Bao-Jun2, LI Bo2, CHENG Xiao-Ying2, ZHANG Sheng-Zhao2, FAN Yun-Qi1, ZHANG Wei-Dong2, ZHU Jia-Ting2   

  1. 1 Institute of Application of Atomic Energy, Jiangsu Academy of Agricultural Sciences. Nanjing 210014;
    2 Nanjing Institute of Geography and Limnology, the Chinese Academy Sciences, Nanjing 210008
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LI Zheng-Kui, PU Pei-Min, HU Wei-Pin, HU Chun-Hua, CHEN Bao-Jun, LI Bo, CHENG Xiao-Ying, ZHANG Sheng-Zhao, FAN Yun-Qi, ZHANG Wei-Dong, ZHU Jia-Ting. Improvement of Taihu water quality by the technology of immobilized nitrogen cycle bacteria.Nuclear Science and Techniques, 2002, 13(2): 115

Abstract: Experimental studies were carried out on the purification of eutrophic Taihu Lake water by dynamic experiment using immobilized nitrogen cycle bacteria (INCB). The results showed that the eutrophic water of Taihu Lake can be purified effectively as it passes through the experimental reactor into which some immobilized nitrogen cycle bacteria were put. The removal efficiencies for Total N (TN), NH4+ with immobilized nitrogen cycle bacteria were 72.4% and 85.6%, respectively, It was found that the immobilized nitrogen cycle bacteria also have purificatory effect on eutrophic water of Taibu Lake at winter temperature (7°C), and that the removalm efficiencies for Total N (TN), NH4+-N were 55.6%, and 58.9%, respectively. The removal efficiencies for TN and NH4+ depend on the time the water stays in the experimental reactor.

Key words: Radiation polymerization, Immobilized nitrogen cycle bacteria, Dynamic experiment, Taihu Lake water in winter