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化工进展  2015 

限氧条件下亚硝化的稳定运行及动力学

DOI: 10.16085/j.issn.1000-6613.2015.12.011, PP. 4198-4202

Keywords: 序批式反应器,亚硝化,高氨氮废水,限氧,基质抑制模型

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Abstract:

采用高氨氮人工配水和序批式反应器,在限氧(0.2~0.3mg/L)条件下,研究了进水氨氮负荷、游离氨和游离亚硝酸对氨氮转化率、亚硝化率和亚硝氮生成速率的影响及游离氨对氨氧化菌的基质抑制动力学。结果表明,在进水氨氮负荷逐步提升过程中,由于高浓度游离氨的抑制作用及负荷冲击的影响,亚硝化效果易出现波动,且负荷越高,亚硝化性能恢复的时间越长。反应系统最终可达到的氨氮容积负荷为3.60kg/(m3·d),亚硝氮生成速率为2.98kg/(m3·d),亚硝化率始终维持在85%左右。反应体系中较高的游离氨浓度(24.4~85.8mg/L)和低浓度溶解氧是维持亚硝化工艺稳定运行的主要因素。游离氨对氨氧化菌的抑制动力学符合Haldane模型,拟合得到最大氨氧化速率为6.71gN/(gVSS·d),游离氨半饱和常数和抑制常数分别为3.2mg/L和27.8mg/L。

References

[1]  张珏,陈辉,姬玉欣,等. 厌氧氨氧化脱氮工艺研究进展[J]. 化工进展,2014,33(6):1589-1595.
[2]  Anthonisen A C,Loehr R C,Prakasam T B S,et al. Inhibition of nitrification by ammonia and nitrous-acid[J]. Journal Water Pollution Control Federation,1976,48(5):835-852.
[3]  van Dongen U,Jetten M S M,van Loosdrecht M C M. The SHARON-ANAMMOX process for treatment of ammonium rich wastewater[J]. Water Science and Technology,2001,44(1):153-160.
[4]  Hellinga C,Schellen A A J C,Mulder J W,et al. The Sharon process:An innovative method for nitrogen removal from ammonium rich wastewater[J]. Water Science and Technology,1998,37(9):135-142.
[5]  张星,林炜铁,朱雅楠. 硝化细菌中亚硝酸盐氧化还原酶的研究进展[J]. 微生物学通报,2008,35(11):1806-1810.
[6]  Tokutomi T,Shibayama C,Soda S,et al. A novel control method for nitritation:The domination of ammonia-oxidizing bacteria by high concentrations of inorganic carbon in an airlift-fluidized bed reactor[J]. Water Research,2010,44(14):4195-4203.
[7]  张昭,李冬,曾辉平,等. 常温下部分亚硝化的启动中试研究[J]. 中国给水排水,2012,28(17):21-25.
[8]  Chai L Y,Ali M,Min X B,et al. Partial nitrification in an air-lift reactor with long-term feeding of increasing ammonium concentrations[J]. Biosource Technology,2015,185:134-142.
[9]  Chuang H P,Ohashi A,Imachi H,et al. Effective partial nitrification to nitrite by down-flow hanging sponge reactor under limited oxygen condition[J]. Water Research,2007,41(2):295-302.
[10]  卢俊平,杜兵,张志高,等. 高氨氮废水稳定亚硝化技术研究[J]. 中国给水排水,2010,26(11):80-83.
[11]  Chen J W,Zheng P,Yu Y,et al. Enrichment of high activity nitrifers to enhance partial nitrification process[J]. Bioresource Technology,2010,101(8):2700-2705.
[12]  Ciudad G,Rubilar O,Munoz P,et al. Partial nitrification of high ammonia concentration wastewater as a part of a shortcut biological nitrogen removal process[J]. Process Biochemistry,2005,40(5):1715-1719.
[13]  Jaroszynski L W,Oleszkiewicz J A. Autotrophic ammonium removal from reject water:Partial nitrification and ANAMMOX in one-reactor versus two-reactor systems[J]. Environmental Technology,2011,32(3):289-294.
[14]  Vadivelu V M,Keller J,Yuan Z. Free ammonia and free nitrous acid inhibition on the anabolic and catabolic processes of Nitrosomonas and Nitrobacter[J]. Water Science and Technology,2007,56(7):89-97.
[15]  Jubany I,Lafuente J,Baeza J. A total and stable washout of nitrite oxidizing bacteria from a nitrifying contunious activated sludge system using automatic control based on oxygen uptake rate measurements[J]. Water Research,2009,43(11):2761-2772.
[16]  Pambrun V,Paul E,Sprandio M. Modelling the partial nitrification in sequencing batch reactor for biomass adapted to high ammonia concentrations[J]. Biotechnology and Bioengineering,2006,95(1):120-131.
[17]  Park S,Bae W. Modeling kinetics of ammonium oxidation and nitrite oxidation under simultaneous inhibition by free ammonia and free nitrous acid[J]. Process Biochemistry,2009,44(6):631-640.

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