Journal of Guangdong University of Technology ›› 2007, Vol. 24 ›› Issue (2): 15-19.

• Comprehensive Studies • Previous Articles     Next Articles

Removing Ammonia Nitrogen from Wastewater by Immobilization Nitrobacteria with Chitosan and Alginate

  

  1. (1.Faculty of Environmental Science and Engineering,Guangdong University of Technology,Guangzhou 510090,China;2.Faculty of Chemical Engineering and Light Industry,Guangdong University of Technology,Guangzhou 510090,China;3.Faculty of Material,Northwestern Polytechnical University,Xi’an 710072,China;4.Faculty of Life Science,Shanghai Fisheries University,Shanghai 200090,China)
  • Online:2007-07-02 Published:2007-07-02

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Abstract: This paper is to find out the best condition of the immobilized microbial beads to treat NH+4-N in fishery wastewater,which is made from entrapping nitrobacteria with chitosan and alginate as entrapment carriers.The experiment results show that when the chitosan mass percent is 1.5%～1.7%,alginate mass percent 3%,CaCl2 mass percent 4.6%～5%,glutaradehyde mass percent 1.1%～1.3%,nitrobacteria 5～5.3 mL,the NH+4-N removal efficiency of fishery wastewater is above 94%.

Key words: chitosan； alginate； nitrobacteria； immobilization technology； fishery wastewater； removal of ammonia nitrogen；

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[2] BOLEY A,MULLER W R,HAIDER G.Biodegradablepolymers as solid substrate and biofilm carrier for denitrifi-cation in recirculated aquaculture systems. Aquacul-tural Engineering . 2000

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[4] SEO Jae-koan,JUNGⅡ-hyong,KIMMi-ryung,et al.Ni-trification performance of nitrifiers immobilized in PVA fora marine recirculating aquarium system. Aquacultural Engineering . 2001

[5] KIM Sung-koo,KONG Insoo.Removal of ammonium-Nfrom a recirculation aquacultural system using an immobi-lized nitrifer. Aquacultural Engineering . 2000
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