Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2014-03-01

Journal: BIORESOURCE TECHNOLOGY

Included Journals: PubMed、EI、SCIE

Volume: 155

Page Number: 427-431

ISSN: 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.