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Treating leachate mixture with anaerobic ammonium oxidation technology

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Abstract

Large amounts of ammonium and a low content of biodegradable chemical oxygen demand(COD) are contained in leachate from aged landfills, together with the effluent containing high concentration of nitric nitrogen after biochemical treatment. Treatment effect of anaerobic ammonium oxidation (anammox) process on the mixture of the leachate and its biochemical effluent was investigated. The results show that the average removal efficiencies of ammonium, nitric nitrogen and total nitrogen are 87.51%, 74.95% and 79.59%, respectively, corresponding to the average ratio of removed nitric nitrogen to ammonium, i.e. 1.14 during the steady phase of anammox activity. The mean removal efficiency of COD is only 24.01% during the experimental period. The demand of total phosphorous for the anammox process is unobvious. Especially, the alkalinity and pH value of the effluent are close to those of the influent during the steady phase of anammox activity. In addition, it is demonstrated that the status of the anammox bioreactor can be indicated by the alkalinity and pH value during the course of the experiment. The anammox bioreactor has shown potential for nitrogen removal in the leachate mixture. However, COD and total phosphorous in the leachate mixture need further treatment for removal efficiencies of COD and total phosphorous are not good in the anammox bioreactor.

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Authors and Affiliations

  1. College of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China

    Zhang Hong-guo PhD  (张鸿郭)

  2. College of Environmental Science and Engineering, South China University of Technology, Guangzhou, 510640, China

    Zhang Hong-guo PhD  (张鸿郭) & Zhou Shao-qi  (周少奇)

Authors
  1. Zhang Hong-guo PhD  (张鸿郭)
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  2. Zhou Shao-qi  (周少奇)
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Correspondence to Zhang Hong-guo PhD  (张鸿郭).

Additional information

Foundation item: Project (20377013) supported by the National Natural Science Foundation of China; project (020959) supported by Department of Science and Technology of Guangdong Province

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Zhang, Hg., Zhou, Sq. Treating leachate mixture with anaerobic ammonium oxidation technology. J Cent. South Univ. Technol. 13, 663–667 (2006). https://doi.org/10.1007/s11771-006-0005-9

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  • DOI: https://doi.org/10.1007/s11771-006-0005-9

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