Indexed by:期刊论文

Date of Publication:2009-02-01

Journal:WATER RESEARCH

Included Journals:SCIE、PubMed

Volume:43

Issue:2

Page Number:381-388

ISSN No.:0043-1354

Key Words:Membrane-aerated biofilm reactor; Anaerobic baffled reactor; Hybrid bioreactor; Nitrogen removal; COD removal; Fluorescence in situ hybridization

Abstract:A novel hybrid aerating membrane-anaerobic baffled reactor (HMABR), based on the installation of aerating membrane into an anaerobic baffled reactor (ABR), to achieve simultaneous removal of nitrogenous and carbonaceous organic pollutants was developed in this study. The results demonstrated that after the installation of membrane module, total VFA and COD concentration in the HMABR effluent were decreased by 68.1 and 59.5% respectively, with increased nitrogenous pollutant remove efficiency by 83.5%, at influent COD concentration of 1600 mg/L and NH(4)(+)-N concentration of 80 mg/L. Fluorescence in situ hybridization (FISH) results of the aerating membrane biofilm showed that the biofilm stratification for the spatial profiles of ammonia-oxidizing bacteria, nitrite-oxidizing bacteria, aerobic heterotrophic bacteria, and denitrifying bacteria. The potential usage of HMABR widens the usage of aerobic-anaerobic combination technology for industrial wastewater treatment. (C) 2008 Elsevier Ltd. All rights reserved.