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Indexed by:期刊论文

Date of Publication:2014-03-01

Journal:BIORESOURCE TECHNOLOGY

Included Journals:SCIE、EI、PubMed

Volume:155

Page Number:427-431

ISSN No.:0960-8524

Key Words:Simultaneous nitrogen and COD removal; Anammox; Partial nitrification; MBR

Abstract:In order to achieve simultaneous removal of nitrogenous and organic pollutants, a novel reverse anammox-partial nitrification nitrogen removal process was developed. During steady operation, the maximum nitrogen and COD (chemical oxygen demand) removal efficiencies were over 90%, with influent NH4+-N and COD concentrations of 300 and 100 mg L-1. The optimum recycle ratio of Membrane bioreactor (MBR for partial nitrification) and fixed bed reactor (anammox) for this process was recommended as 3 due to increasingly larger recycle ratio caused slight increase in TN (total nitrogen) removal efficiency. Additionally, the steady nitrogen removal rate was obtained at 0.92-1.03 kg N m(-3) day(-1). Considering its great potential in nitrogen removal, this reverse process will be revealing for the study of anammox technique. (C) 2013 Elsevier Ltd. All rights reserved.