Volume 17 Issue 3
Sep.  2004
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JIAN-LONG WANG, LI-BO WU. Wastewater Treatment in a Hybrid Biological Reactor (HBR) :Nitrification Characteristics[J]. Biomedical and Environmental Sciences, 2004, 17(3): 373-379.
Citation: JIAN-LONG WANG, LI-BO WU. Wastewater Treatment in a Hybrid Biological Reactor (HBR) :Nitrification Characteristics[J]. Biomedical and Environmental Sciences, 2004, 17(3): 373-379.
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Wastewater Treatment in a Hybrid Biological Reactor (HBR) :Nitrification Characteristics

  • Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, China

  • College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China

Funds:  国家自然科学基金(Grant 59978020)
  • 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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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Wastewater Treatment in a Hybrid Biological Reactor (HBR) :Nitrification Characteristics

  • Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, China
  • College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
Funds:  国家自然科学基金(Grant 59978020)

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.

JIAN-LONG WANG, LI-BO WU. Wastewater Treatment in a Hybrid Biological Reactor (HBR) :Nitrification Characteristics[J]. Biomedical and Environmental Sciences, 2004, 17(3): 373-379.
Citation: JIAN-LONG WANG, LI-BO WU. Wastewater Treatment in a Hybrid Biological Reactor (HBR) :Nitrification Characteristics[J]. Biomedical and Environmental Sciences, 2004, 17(3): 373-379.
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