亚硝酸盐对厌氧产酸耦合反硝化工艺的影响

doi:10.3969/j.issn.0438-1157.2014.09.045

化工学报 ›› 2014, Vol. 65 ›› Issue (9): 3640-3646.DOI: 10.3969/j.issn.0438-1157.2014.09.045

亚硝酸盐对厌氧产酸耦合反硝化工艺的影响

尹志轩, 谢丽, 王蕊, 周琪

同济大学污染控制与资源化研究国家重点实验室, 上海 200092

收稿日期:2013-12-31 修回日期:2014-03-02 出版日期:2014-09-05 发布日期:2014-09-05
通讯作者: 谢丽
基金资助:
国家自然科学基金项目（51178326）。

Effects of nitrite on integrated process of denitrification with anaerobic acidogenesis

YIN Zhixuan, XIE Li, WANG Rui, ZHOU Qi

State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, China

Received:2013-12-31 Revised:2014-03-02 Online:2014-09-05 Published:2014-09-05
Supported by:
supported by the National Natural Science Foundation of China (51178326).

摘要/Abstract

摘要： 以木薯酒精废水为碳源，通过批次实验研究了亚硝酸盐对厌氧产酸耦合反硝化系统的影响。结果表明，投加600 mg·L^-1 后的最终产酸量与空白反应器相差不大，但是投加相同浓度亚硝酸盐后产酸受到严重抑制，最终产酸量仅为空白反应器的1.8%。而硝酸盐还原过程中厌氧产酸受到抑制可能是由于反硝化中间产物亚硝酸盐的存在，低投加量的亚硝酸盐即可对厌氧产酸产生强烈的抑制作用并具有持续性，且对各产酸组分的影响作用：正丁酸>丙酸>乙酸。随着的降低，亚硝酸盐的还原率由74.9%降低至22.2%。当游离亚硝酸（free nitrous acid， FNA）浓度为0.05 mg·L^-1以上时，亚硝酸盐还原几乎被完全抑制（90%以上）。此外，随着的增加，反硝化所占的比例逐渐减小，而DNRA过程（dissimilatory nitrate reduction to ammonium，异化硝酸盐还原为铵）逐渐占优势。

关键词: COD/NO₂^--N比, 厌氧产酸抑制, 反硝化抑制, 硝酸盐异化还原

Abstract: The effects of nitrite on integrated process of denitrification with anaerobic acidification were conducted in a batch reactor using cassava stillage (CS) as substrate. The results showed that the final volatile fatty acids(VFA) production of anaerobic reactor was similar for with and without adding nitrate (600 mg·L^-1 ), but severe inhibiton of acidogenesis took place after adding the same amount of nitrite and the final VFA production was only 1.8% of that of the blank reactor. The decrease of anaerobic acid production in the nitrate reduction process was mainly due to the presence of nitrite. A small amount of nitrite could strongly suppress anaerobic acidogenesis, and the effects of nitrite on VFA composition was n-butyric>propionic>acetic acid. With decrease of ratio, nitrite reduction rate decreased from 74.9% to 22.2%, and was suppressed almost completely (>90%) at the concentration free nitrous acid (FNA) above 0.05 mg·L^-1. Furthermore, with increase of ratio the proportion of denitrification decrease gradually in nitrite reduction, while dissimilatory nitrate reduction to ammonium (DNRA) process became dominant gradually.

Key words: ratio, inhibition of anaerobic acidogenesis, denitrification inhibition, DNRA

中图分类号:

X703.1

尹志轩, 谢丽, 王蕊, 周琪. 亚硝酸盐对厌氧产酸耦合反硝化工艺的影响[J]. 化工学报, 2014, 65(9): 3640-3646.

YIN Zhixuan, XIE Li, WANG Rui, ZHOU Qi. Effects of nitrite on integrated process of denitrification with anaerobic acidogenesis[J]. CIESC Journal, 2014, 65(9): 3640-3646.

参考文献 24

[1]	Metcalf & Eddy, Inc. Wastewater Engineering-Treatment and Reuse [M]. 4th ed. New York: McGraw-Hill, 2003
[2]	Ghafari S, Hasan M, Aroua M K. Bio-electrochemical removal of nitrate from water and wastewater-a review [J]. Bioresource Technology, 2008, 199: 3965-3974
[3]	Watanabe T, Motoyama H, Kuroda M. Denitrification and neutralization treatment by direct feeding of an acidic wastewater containing copper ion and high-strength nitrate to a bio-electrochemical reactor process [J]. Water Research, 2001, 35: 4102-4110
[4]	Jorgensen K S, Tiedje J M. Survival of denitrifiers in nitrate-free, ananerobic environments [J]. Applied and Environmental Microbiology, 1993, 59 (10): 3297-3305
[5]	Akunna J C, Bizeau C, Moletta R. Nitrate and nitrite reductions with anaerobic sludge using various carbon sources: glucose, glycerol, acetic acid, lactic acid and methanol [J]. Water Research, 1993, 27 (8): 1303-1312
[6]	Akunna J C, Bizeau C, Moletta R. Denitrification in anaerobic digesters: possibilities and influence of wastewater COD/N-NOx ratio [J]. Environmental Technology, 1992, 13 (9): 825-836
[7]	Baloch M I, Akunna J C, Collier P J. Carbon and nitrogen removal in a granular bed baffled reactor [J]. Environmental Technology, 2006, 27 (2): 201-208
[8]	Hendriksen H V, Ahring B K. Integrated removal of nitrate and carbon in an upflow anaerobic sludge blanket (UASB) reactor: operating performance [J]. Water Research, 1996b, 30 (6): 1451-1458
[9]	Akunna J, Bizeau C, Moletta R, Bernet N, Heduit A. Combined organic-carbon and complete nitrogen removal using anaerobic and aerobic upflow filters [J]. Water Science and Technology, 1994, 30 (12): 297-306
[10]	Tugtas A E, Pavlostathis S G. Inhibitory effects of nitrogen oxides on a mixed methanogenic culture [J]. Biotechnology and Bioengineering, 2007, 96 (3): 444-455
[11]	Banihani Q, Sierra-Alvarez R, Field J A. Nitrate and nitrite inhibition of methanogenesis during denitrification in granular biofilms and digested domestic sludges [J]. Biodegradation, 2009, 20: 801-812
[12]	Clarens M, Bernet N, Delgenès J P, Moletta R. Effects of nitrogen oxides and denitrification by Pseudomonas stutzeri on acetotrophic methanogenesis by Methanosarcina mazei [J]. FEMS Microbiology Ecology, 1998, 25 (3): 271-276
[13]	Zumft W G. Cell biology and molecular basis of denitrification [J]. Microbiology and Molecular Biology Reviews, 1997, 61: 533-616
[14]	Wu L, Peng C, Zhang S, Peng Y. Nitrogen removal via nitrite from municipal landfill leachate [J]. Journal of Environmental Sciences, 2009, 21: 1480-1485
[15]	Klüber H D, Conrad R. Effects of nitrate, nitrite, NO and N2O on methanogenesis and other redox processes in anoxic rice field soil [J]. FEMS Microbiology Ecology, 1998, 25: 301-318
[16]	Xie Li (谢丽), Chen Jinrong (陈金荣), Zhou Qi (周琪). A review on anaerobic simultaneous denitrification and methanogenesis [J]. CIESC Journal (化工学报), 2011, 62 (3): 597-597
[17]	Vigneron V, Ponthieu M, Barina G, Audic J M, Duquennoi C, Mazéas L, Bernet N, Bouchez T. Nitrate and nitrite injection during municipal solid waste anaerobic biodegradation [J]. Waste Management, 2007, 27 (6): 778-791
[18]	Kulikowska D. Nitrogen removal from landfill leachate via the nitrite route [J]. Brazilian Journal of Chemical Engineering, 2012, 29 (2): 211-219
[19]	Hendriksen H V, Ahring B K. Combined removal of nitrate and carbon in granular sludge: substrate competition and activities [J]. Antonie van Leeuwenhoek, 1996, 69 (1): 33-39
[20]	Xie L, Chen J, Wang R, Zhou Q. Effect of carbon source and ratio on anaerobic simultaneous denitrification and methanogenesis for high-strength wastewater treatment [J]. Journal of Bioscience and Bioengineering, 2012, 113 (6): 759-764
[21]	Ma J, Yang Q, Wang S, Wang L, Takigawa A, Peng Y. Effect of free nitrous acid as inhibitors on nitrate reduction by a biological nutrient removal sludge [J]. Journal of Hazardous Materials, 2010, 175 (1/2/3): 518-523
[22]	Zhou Y, Pijuan M, Zeng R J, Yuan Z. Free nitrous acid inhibition on nitrous oxide reduction by a denitrifying-enhanced biological phosphorus removal sludge [J]. Environmental Science and Technology, 2008, 42(22): 8260-8265
[23]	Almeida J S, Julio S M, Reis M A M, Carrondo M J T. Nitrite inhibition of denitrification by pseudomonas fluorescens [J]. Biotechnology and Bioengineering, 1995, 46 (3): 194-201
[24]	Glass C, Silverstein J. Denitrification kinetics of high nitrate concentration water: pH effect on inhibition and nitrite accumulation [J]. Water Research, 1998, 32 (3): 831-839

亚硝酸盐对厌氧产酸耦合反硝化工艺的影响

Effects of nitrite on integrated process of denitrification with anaerobic acidogenesis

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