Anaerobic ammonium oxidation for advanced municipal wastewater treatment: is it feasible?
  • 【DOI】

    10.3321/j.issn:1001-0742.2005.06.030

  • 【摘要】

    Anaerobic ammonium oxidation(ANAMMOX) is a recently developed process to treat ammonia-rich wastewater. There were numerous articles about the new technology with focus on the ammonium-rich wastewater... 展开>>Anaerobic ammonium oxidation(ANAMMOX) is a recently developed process to treat ammonia-rich wastewater. There were numerous articles about the new technology with focus on the ammonium-rich wastewater treatment, but few on advanced municipal wastewater treatment. The paper studied the anaerobic ammonium oxidation(ANAMMOX) process with a down flow anoxic biofilter for nitrogen removal from secondary clarifier effluent of municipal wastewater with low COD/N ratio. The results showed that ANAMMOX process is applicable to advanced wastewater treatment with normal temperature as well as ammonia-rich high temperature wastewater treatment. The results indicated that ammonia removal rate was improved by raising the nitrite concentration, and the reaction rate reached a climax at 118.4 mgN/L of the nitrite nitrogen concentration. If the concentration exceeds 118.4 mgN/L, the ANAMMOX process was significantly inhibited although the ANAMMOX bacteria still showed a relatively high reactivity. The data also indicated that the ratio of NO2- -N:NH4 + -N = 1.3:1 in the influent was appropriate for excellent nitrogen removal. The pH increased gradually along the ANAMMOX biofilter reactor. When the ANAMMOX reaction was ended, the pH was tend to calm. The data suggested that the pH could be used as an indicator to describe the course of ANAMMOX reaction. 收起<<

  • 【作者】

  • 【作者单位】

    School of Municipal and Environmental Engineering/Key Lab of Water Quality Science and Water Environment Recovery Engineering/School of Municipal and Environmental Engineering

  • 【刊期】

    环境科学学报(英文版) ISTIC SCI 2005年6期

  • 【关键词】

    ANAMMOX  anoxic biofilter  advanced treatment  nitrogen removal  nitrite 

  • 【基金项目】

    国家高技术研究发展计划(863计划)