NDLI: Principle and engineering application of four dimention bio-reactor at nitrogen removal

Content Provider	IEEE Xplore Digital Library
Author	Jianan Cai Yun Wang Guozheng Zhao Meiying Zhong Jun Zheng
Copyright Year	2011
Description	Author affiliation: School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan Anhui (Jianan Cai; Yun Wang; Guozheng Zhao; Meiying Zhong) \|\| Hi-kylin Enviro. Protection S.&.T. Development Co. Ltd, Ma'anshan, Anhu P.R. China (Jun Zheng)
Abstract	The Four dimension bio-reactor at nitrogen removal (4DBNR) is consisted of series of the airlift alternant loop complex bio-filters(AALCF), with baffled flow along the longitudinal direction. Four dimension means three dimension flow controlled by the time changing aerobic operating. The aerobic and anaerobic circumstances formed along the liquid flux for nitrification /denitrification with intermittent circulation and liquid fully mixing in diffluent segments. Six months experiments on 4DBNR $60m^{3}$ in the volume for $20m^{3}/h$ sewage treatment at a holiday village indicated that the organic and nitrogenous contaminants were removed simultaneously. The average COD and NH3-N loading were 2.11 and 0.24 $kgd^{−1}.$ $m^{−3},$ the concentration in effluent was 29.7 and 6.6 $mgL^{−1}$ while COD $252mgL^{−1},$ NH3-N 29.73 $mgL^{−1}$ in the influent, the average removal of COD and NH3-N was 88% and 80.6% respectively, the average ratio of gas to liquid flow rate was 0.95. As a nitrogen removal process, not combined of many aerobic or anaerobic units, and no extra settling pole and reflux required, the advantages of 4DBNR on the compact structure and low operating cost are very obvious.
Starting Page	2436
Ending Page	2439
File Size	746437
Page Count	4
File Format	PDF
ISBN	9781424481620
e-ISBN	9781424481651
DOI	10.1109/ICECENG.2011.6058135
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-09-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Baffled Aerobic Loading Effluents Bio-filter Filling Nitrogen Wastewater Inductors Wastewater treatment Airlift
Content Type	Text
Resource Type	Article

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