Abstract
An aerobic moving bed biofilm reactor (MBBR) was applied to treat landfill leachate generated from a domestic waste incineration plant. Pollutant removal efficiency of this reactor under stable operating condition was studied. The biomass, bacteria species, and microbial metabolism in this reactor were investigated. These results showed that the average removal efficiency of chemical oxygen demand (COD) and ammonia nitrogen in the aerobic MBBR achieved 64% and 97% in the optimum conditions, respectively. The three-dimensional fluorescence spectrum revealed that the content of soluble microbial byproducts from extracellular polymeric substances extraction in suspended sludge was much higher than that on biofilm, and the types of pollutants were various in different regions of the reactor. It also indicated that the MBBR system had a stable, rich and regular microorganism community, including large amounts of nitrifying bacteria and denitrifying bacteria. Scanning electron microscopy suggested that biofilm attached to the packing provided a good anoxic-aerobic micro environment system to achieve a high metabolic activity, which favored COD and ammonia removal.
References
May 1, 1976·Anesthesiology·B F CullenL Ray-Keil
Jan 14, 2004·Environmental Science & Technology·Wen ChenKarl Booksh
Jan 20, 2006·FEMS Microbiology Ecology·Binbin LiuLiping Zhao
Mar 4, 2006·Water Research·Guo-Ping Sheng, Han-Qing Yu
Mar 23, 2007·Waste Management·Sheng ChenJong-Shik Chung
Nov 17, 2007·Bioresource Technology·Y Z LiT Zhou
Sep 17, 2008·Bioresource Technology·Leonidia Maria Castro DanielFabio Alexandre Chinalia
Oct 29, 2009·Applied Microbiology and Biotechnology·Paul D'AbzacGilles Guibaud
Oct 26, 2010·Journal of Hazardous Materials·Sebastià PuigJesús Colprim
Oct 1, 2011·Water Research·Yang Deng, Casey M Ezyske
Oct 1, 2013·Bioresource Technology·Liang DuanSlawomir W Hermanowicz
Nov 16, 2013·Bioresource Technology·Mohamed MahmoudBruce E Rittmann
Jul 19, 2014·Bioresource Technology·Yuhai LiangJie Zhang
Jan 9, 2015·Bioresource Technology·Qiao MaJiti Zhou
Feb 6, 2016·Journal of Hazardous Materials·Zhihong YeMengmeng Chen
Apr 25, 2016·Chemosphere·Aping NiuDe-Sheng Pei