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引用本文:李正魁,濮培民.净化湖泊水体氮污染的固定化硝化-反硝化菌研究.湖泊科学,2000,12(2):119-123. DOI:10.18307/2000.0204
LI Zhengkui,PU Peimin.Purification of Lake Water by Immobilized Nitrobacteria-Denitrifying Bacteria. J. Lake Sci.2000,12(2):119-123. DOI:10.18307/2000.0204
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净化湖泊水体氮污染的固定化硝化-反硝化菌研究
李正魁, 濮培民
中国科学院南京地理与湖泊研究所, 南京210008
摘要:
依据太湖水体氮污染的特点,设计应用低温辐射技术引导玻璃态单体丙烯酸羟乙脂 2-Hydroxyethyl acrylate(HEA)与聚乙二醇二甲基丙烯酸脂 Polyethylene glycol dimethacrylate(14G)制备高分子载体,并使用增殖细胞技术固定化硝化-反硝化菌净化湖水.研究结果表明,富营养化湖水经过固定化硝化-反硝化菌 SBR工艺净化后,总氮下降 70%,氨氮下降 84%,CODCr下降 68%,出水水质得到明显改善.研究结果还表明,固定化硝化反硝化菌系统的最适反应温度为28℃,溶解氧浓度对总氮的去除率有一定的影响,固定化菌在低温条件下表现出明显的耐受性.
关键词:  低温辐射技术  固定化硝化-反硝化菌  水质净化  共聚物载体  太湖水
DOI:10.18307/2000.0204
分类号:
基金项目:国家科委和欧盟项目(CI1*-CT93-0094(DG12HSMU))及江苏省社会发展项目(BS99021)资助.
Purification of Lake Water by Immobilized Nitrobacteria-Denitrifying Bacteria
LI Zhengkui, PU Peimin
Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
Abstract:
In this paper, for purification of eutrophic Lake Water, immobilized nitrobacteria-denitrifying bacteria made from radiation copolymerization at low temperatures by means of glass forming monomers, i.e.2-hydroxyethyl acrylate (HEA) and polyethylene glycol dimethacrylate (14G) have been used-The Sequencing Batch Reactors (SBR) system and cell proliferation of nitrobacteiia-denitiifying bacteria techniques were carried out in order to treat eutrophic lake water.The results showed that the removal efficiencies of immobilized nitrobacteiia-denitiifying bacteria for Total N (TN), NH4+-N and CODcr were 70%, 84% and 68%, respectively.The results demonstrated that the optimum temperature of immobilized nitrobacteria-denitrifying bacteria system was 28℃.Immobilized nitrobacteria-denitrifying bacteria was more resistance to low temperature(10℃).The dissolved oxygen (DO) concentration have effect on removal efficiencies for Total N(TN).
Key words:  Radiation technique at low temperature  immobilized nitrobacteria-denitrifying bacteria  purifying water quality  copolymerization carrier  Taihu Lake
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