| Wastewater Treatment in a Hybrid Biological Reactor （HBR） ： Nitrification Characteristics |
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| 作者姓名： | Wang JL Wu LB |
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| 作者单位： | [1]LaboratoryofEnvironmentalTechnology,INET,TsinghuaUniversity,Beijing100084,China [2]CollegeofEnvironmentalScienceandEngineering,NankaiUniversity,Tianjin300071,China |
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| 摘 要： | Objective To investigate the nitrifying characteristics of both suspended- and attachedbiomass in a hybrid bioreactor. Methods The hybrid biological reactor was developed by introducing porous ceramic particles into the reactor to provide the surface for biomass attachment.Microorganisms immobilized on the ceramics were observed using scanning electron microscopy (SEM). All chemical analyses were performed in accordance with standard methods. Results The suspended- and attached-biomass had approximately the same nitrification activity. The nitrifying kinetic was independent of the initial biomass concentration, and the attached-biomass had a stronger ability to resist the nitrification inhibitor. Conclusion The attached biomass is superior to suspended-biomass for nitrifying wastewater, especially that containing toxic organic compounds. The hybrid biological reactor consisting of suspended- and attached-biomass is advantageous in such cases.
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| 关 键 词： | 附加生物量 混合生物反应堆 氮化作用 混悬生物量 硝化抑制剂 废水处理 HBR |
Wastewater treatment in a hybrid biological reactor (HBR): nitrification characteristics |
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| Wang JL,Wu LB.Wastewater treatment in a hybrid biological reactor (HBR): nitrification characteristics[J].Biomedical and Environmental Sciences,2004,17(3):373-379. |
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| Authors: | Wang Jian-Long Wu Li-Bo |
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| Institution: | Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, China. wangjl@tsinghua.edu.cn |
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| Abstract: | To investigate the nitrifying characteristics of both suspended- and attached- biomass in a hybrid bioreactor. Methods The hybrid biological reactor was developed by introducing porous ceramic particles into the reactor to provide the surface for biomass attachment. Microorganisms immobilized on the ceramics were observed using scanning electron microscopy (SEM). All chemical analyses were performed in accordance with standard methods. Results The suspended- and attached-biomass had approximately the same nitrification activity. The nitrifying kinetic was independent of the initial biomass concentration, and the attached-biomass had a stronger ability to resist the nitrification inhibitor. Conclusion The attached biomass is superior to suspended-biomass for nitrifying wastewater, especially that containing toxic organic compounds. The hybrid biological reactor consisting of suspended- and attached-biomass is advantageous in such cases. |
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| Keywords: | Attached biomass Hybrid biological reactor Nitrification Suspended biomass Nitrification inhibitor |
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