Reason Analysis of ANAMMOX Occurred in a Landfill Leachate Treatment System

Abstract:

The biological treatment process of landfill leachate in Beijing Liulitun landfill is a multistage A/O technology, in which a large amount of ANAMMOX (Anaerobic ammonia oxidation, ANAMMOX) bacteria were found in the sludge. There are several factors impacting the activity of ANAMMOX bacteria, including pH value, temperature and HRT which in this process are suitable for the survival of ANAMMOX bacteria. Especially, low dissolved oxygen is an essential factor as the provider of electron donor for nitrite formation. Although the high concentrations of organic matter, ammonia nitrogen and nitrite will inhibit the occurrence of ANAMMOX, ANAMMOX bacteria can self-detoxification by forming a low-poison habitat by consuming ammonia and nitrite as well as organic matter by heterotrophic ANAMMOX bacteria.

• Periodical: Advanced Materials Research (Volumes 955-959)
• Pages: 2322-2325
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.955-959.2322
• Online since: June 2014
• Authors: Li Hua Liang*, Su Lin Kuang, Ting Wang, Yuan Jing Ji, Sai Zhang
• Keywords: Anammox, Leachate, Reason Analysis

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