Enhanced NOx removal from flue gas by an integrated process of chemical absorption coupled with two-stage biological reduction using immobilized microorganisms

被引：38
作者：
Zhou, Zuoming [1 ,2 ]
Jing, Guohua [2 ]
Zhou, Qi [1 ]
机构：
[1] Tongji Univ, Coll Environm Sci & Engn, Shanghai 200092, Peoples R China
[2] Huaqiao Univ, Dept Environm Sci & Engn, Xiamen 361021, Fujian, Peoples R China
来源：
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION | 2013年 / 91卷 / 04期
基金：
中国国家自然科学基金;
关键词：
NOx removal; Fe(II)EDTA; Immobilized microorganisms; Absorption; MICROBIAL REDUCTION; NITRIC-OXIDE; DENITRIFICATION; FE(III)EDTA(-); DEGRADATION; MECHANISM; KINETICS;
D O I：
10.1016/j.psep.2012.08.001
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
An integrated process of metal chelate absorption coupled with two stage bio-reduction using immobilized cultures has been proposed to continuously removal of NOx, and the effects of SO2, NO and O-2 concentration, gas/liquid flow rate on NOx removal efficiency were investigated. Although nitrogen-containing components, such as Fe(II)EDTA-NO, NO2- and NO3- in the scrubbing solution, inhibited the bio-reduction of Fe(III)EDTA obviously, it was feasible to abate the inhibition effect by using the two stage bio-reduction system, and thus to improve NOx removal efficiency. The removal efficiency decreased slowly with the increase of SO2, O-2, NO concentration and gas flow rate, and increased with the increase of liquid flow rate. Continuously operating for 18 days, a high removal efficiency around 95% was reached by using the two-stage bio-reduction system with immobilized microorganisms, while the value decreased to 85% after 5 days of operation by using the suspended microorganisms, at a constant gas flow rate of 60 L/h containing 424-450 mg/m(3) NO, 2428-2532 mg/m(3) SO2 and 3% O-2. (C) 2012 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：325 / 332
页数：8
相关论文
共 26 条
[1]  
Buisman C.J.N., 1999, U.S. Patent, Patent No. [US5891408, 5891408, 5,891,408]
[2]   Degradation of phenol by PAA-immobilized Candida tropicalis [J].
Chen, KC ;
Lin, YH ;
Chen, WH ;
Liu, YC .
ENZYME AND MICROBIAL TECHNOLOGY, 2002, 31 (04) :490-497
[3]   Kinetics of the reaction of FeII(EDTA) with oxygen in aqueous solutions [J].
Gambardella, F ;
Ganzeveld, IJ ;
Winkelman, JGM ;
Heeres, EJ .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2005, 44 (22) :8190-8198
[4]   Removal and biodegradation of nonylphenol by immobilized Chlorella vulgaris [J].
Gao, Q. T. ;
Wong, Y. S. ;
Tam, N. F. Y. .
BIORESOURCE TECHNOLOGY, 2011, 102 (22) :10230-10238
[5]   Reduction of Fe(III)EDTA- in a NOx scrubbing solution by magnetic Fe3O4-chitosan microspheres immobilized mixed culture of iron-reducing bacteria [J].
Jing, Guohua ;
Zhou, Jin ;
Zhou, Zuoming ;
Lin, Tianming .
BIORESOURCE TECHNOLOGY, 2012, 108 :169-175
[6]  
[荆国华 Jing Guohua], 2008, [环境工程学报, Chinese Journal of Environmental Engineering], V2, P1383
[7]   Characterization of microbial communities removing nitrogen oxides from flue gas: the BioDeNOx process [J].
Kumaraswamy, R ;
van Dongen, U ;
Kuenen, JG ;
Abma, W ;
van Loosdrecht, MCM ;
Muyzer, G .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2005, 71 (10) :6345-6352
[8]   Nitrate-dependent [Fe(II)EDTA]2- oxidation by Paracoccus ferrooxidans sp nov., isolated from a denitrifying bioreactor [J].
Kumaraswamy, Rajkumari ;
Sjollema, Klaas ;
Kuenen, Gijs ;
van Loosdrecht, Mark ;
Muyzer, Gerard .
SYSTEMATIC AND APPLIED MICROBIOLOGY, 2006, 29 (04) :276-286
[9]   SIMULTANEOUS COMBINED MICROBIAL REMOVAL OF SULFUR-DIOXIDE AND NITRIC-OXIDE FROM A GAS-STREAM [J].
LEE, KH ;
SUBLETTE, KL .
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY, 1991, 28-9 :623-634
[10]   Metal chelate absorption coupled with microbial reduction for the removal of NOx from flue gas [J].
Li, W ;
Wu, CZ ;
Shi, Y .
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 2006, 81 (03) :306-311
123