期刊
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
卷 50, 期 6, 页码 612-653出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10643389.2019.1631989
关键词
Leachate; advanced nitrogen removal; anammox; heterotrophic denitrification; partial denitrification; simultaneous denitrification and methanogenesis (SDM)
资金
- National Natural Science Foundation of China [51808331, 51578329, 51778352]
- Science and Technology Commission of Shanghai Municipality [18230710900]
Anaerobic ammonium oxidation (anammox), a promising technology for bio-nitrogen removal, has been a research hotspot in the field of leachate treatment. However, the inhibitory effect of organic matter and high-strength nitrogen on anammox bacteria and the limitation of the theoretical total nitrogen removal efficiency of anammox (<90%) are obstacles to its wider application. The mechanisms of the inhibitory effects of organic matter, ammonium, and nitrite on anammox bacteria, and the corresponding control strategies are summaries. The anammox-based processes developed for advanced nitrogen removal (ANR) in recent years, including anammox-based heterotrophic denitrification, anammox-based partial denitrification, and anammox-based constructed wetlands are systematically discussed. An integrated anaerobic system of simultaneous denitrification and methanogenesis (anaerobic membrane bioreactor) thorn anammox-based processes was proposed for the ANR and optimal energy recovery from leachate. This process showed a 16% increase in biogas yield, a 64% decrease in aeration energy consumption, and the decrease in the external carbon source is expected to be 100% compared to conventional leachate treatment processes such as anoxic/oxic-membrane bioreactors. Finally, a few research perspectives on leachate treatment using anammox-based processes are reviewed. The conclusions drawn from the studies presented herein provide guidance for further research and engineering applications in the field of leachate treatment. [GRAPHICS] .
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