Journal of South China University of Technology (Natural Science Edition) ›› 2005, Vol. 33 ›› Issue (10): 93-97.

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Cultivation of Anaerobic Ammonium-Oxidized Sludge in Anaerobic Sequencing Batch Reactor

Hu yong-you  Liang Hui-qiang  Luo Huai-qing   

  1. College of Environmental Science and Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China
  • Received:2004-12-28 Online:2005-10-25 Published:2005-10-25
  • Contact: 胡勇有(1964-)，男，教授，主要从事水环境与水污染控制技术方面的研究 E-mail:ppyyhu@scut.edu.cn
  • About author:胡勇有(1964-)，男，教授，主要从事水环境与水污染控制技术方面的研究
  • Supported by:

    国家自然科学基金资助项目(50378039)

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Abstract:

In order to seed aerobic nitrated sludge in an anaerobic sequencing batch reactor(ASBR),the anaero-bic ammonium-oxidized sludge(ANAMMOX)was successfully enriched at(30±1)oC after a 1 42-day cultivation,with the influent pH value ranging from 7.2 to 7.8.Experimental results indicate that,with a hydraulic settling time of 1.2d and a volumetric loading rate(calculated with the content of N)of 0.431 8 kg/(m3 ·d),the maxi-mum and average removals of the total nitrogen respectively achieve 93.3% and 80.5% .while the maximum re-movals of NH4+-N and NO2--N respectively achieve 93.9% and 99.8% .averaging 81.2% and 85.7% respective-ly.In addition,the mole ratio of the removed NH4+-N to the removed NO2--N in the ANAMMOX process is 1:(1.387±0.024),and the anaerobic ammonium oxidation is found to be the main reaction in the ASBR,which means that ASBR is one of the useful tools to enrich the ANAMMOX sludge.

Key words: anaerobic ammonium oxidation, an aerobic sequencing batch reactor, biological nitrogen removal , sludge