Based on the stable immobilizing anammox reactor, the anammox coupling with partial denitrification, called DEAMOX, was successfully achieved after 94days operation with the value of NO2-—N accumulation rate and the removal rate of NO3-—N up to 63.5% and 98.4%, respectively. The findings revealed that the optimum ranges of COD/NO3-—N for coupling reaction were 2.3~2.7. Besides, the coupling performance was weakened by the raising pH values up to 8.0 or 8.5, which was inconsistent with some published research. The immobilizing anammox further coupling whole process denitrification was achieved by adding solid carbon source of PCL into DEAMOX reactor. Subsequently, the NO3-—N produced by anaerobic ammonia oxidation could be completely removed and the removal rate of total nitrogen increased from 79.4% to 88.3%. Besides, there were a large number of denitrifying biofilms attached to the surface of PCL particles.
王维奇, 王秀杰, 李军, 王思宇. 部分反硝化耦合厌氧氨氧化脱氮性能研究[J]. 中国环境科学, 2019, 39(2): 641-647.
WANG Wei-qi, WANG Xiu-jie, LI Jun, WANG Si-yu. Study on the performance of partial denitrification coupled with anaerobic ammonia oxidation for nitrogen removal. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(2): 641-647.
Zhu W, Li J, Dong H, et al. Effect of influent substrate ratio on anammox granular sludge:performance and kinetics[J]. Biodegradation, 2017,28(5/6):437-452.
[2]
Zhang L, Narita Y, Gao L, et al. Microbial competition among anammox bacteria in nitrite-limited bioreactors[J]. Water Research, 2017,125:249-258.
[3]
Tang X, Guo Y, Jiang B, et al. Metagenomic approaches to understanding bacterial communication during the anammox reactor start-up[J]. Water Research, 2018,136:95-103.
[4]
Pedrouso A, Aiartza I, Morales N, et al. Pilot-scale ELAN® process applied to treat primary settled urban wastewater at low temperature via partial nitritation-anammox processes[J]. Separation and Purification Technology, 2018,200:94-101.
[5]
Wu J. Comparison of control strategies for single-stage partial nitrification-anammox granular sludge reactor for mainstream sewage treatment-a model-based evaluation[J]. Environmental Science and Pollution Research, 2017,24(33):25839-25848.
[6]
Kalyuzhnyi S, Gladchenko M, Mulder A, et al. DEAMOX-new biological nitrogen removal process based on anaerobic ammonia oxidation coupled to sulphide-driven conversion of nitrate into nitrite[J]. Water Research, 2006,40(19):3637-3645.
[7]
Cao S, Wang S, Peng Y, et al. Achieving partial denitrification with sludge fermentation liquid as carbon source:the effect of seeding sludge[J]. Bioresource Technology, 2013,149:570-574.
[8]
Du R, Cao S, Li B, et al. Performance and microbial community analysis of a novel DEAMOX based on partial-denitrification and anammox treating ammonia and nitrate wastewaters[J]. Water Research, 2017,108:46-56.
[9]
Li W, Cai Z, Duo Z J, et al. Heterotrophic ammonia and nitrate bio-removal over nitrite (Hanbon):Performance and microflora[J]. Chemosphere, 2017,182:532-538.
[10]
王维奇,王秀杰,李军,等.包埋厌氧氨氧化的脱氮特性及其微生物群落结构[J]. 中国环境科学, 2018,38(9):3343-3350. Wang Wei-qi, Wang Xiu-jie, Li Jun, et al. Nitrogen removal characteristics and microbial community structure analysis of entrapped anaerobic ammonium oxidizing bacteria[J]. China Environmental Science, 2018,38(9):3343-3350.
[11]
Li J, Zhu W, Dong H, et al. Performance and kinetics of ANAMMOX granular sludge with pH shock in a sequencing batch reactor[J]. Biodegradation, 2017,28(4):245-259.
[12]
Strous M, Heijnen J J, Kuenen J G, et al. The sequencing batch reactor as a powerful tool for the study of slowly growing anaerobic ammonium-oxidizing microorganisms[J]. Applied microbiology and biotechnology, 1998,50(5):589-596.
[13]
操沈彬,王淑莹,吴程程,等.有机物对厌氧氨氧化系统的冲击影响[J]. 中国环境科学, 2013,33(12):2164-2169. Cao Shen-bin, Wang Shu-ying, Wu Cheng-cheng, et al. Shock effect of organic matters on anaerobic ammonia oxidation system[J]. China Environmental Science, 2013,33(12):2164-2169.
[14]
胡勇有,梁辉强,朱静平,等.有机碳源环境下的厌氧氨氧化批式实验[J]. 华南理工大学学报(自然科学版), 2007,35(6):116-119. Hu Yong-you, Liang Hui-qiang, Zhu Jing-ping, et al. Batch Experiments of Anaerobic Ammonium Oxidation Process with Organic Carbon[J]. Journal of South China University of Technology (Natural Science Edition), 2007,35(6):116-119.
[15]
Glass C, Silverstein J A. Denitrification kinetics of high nitrate concentration water:pH effect on inhibition and nitrite accumulation[J]. Water Research, 1998,32(3):831-839.
[16]
Li W, Shan X Y, Wang Z Y, et al. Effect of self-alkalization on nitrite accumulation in a high-rate denitrification system:performance, microflora and enzymatic activities[J]. Water Research, 2016,88:758-765.
[17]
Chu L, Wang J. Nitrogen removal using biodegradable polymers as carbon source and biofilm carriers in a moving bed biofilm reactor[J]. Chemical Engineering Journal, 2011,170(1):220-225.
[18]
Xu Y, Qiu T L, Han M L, et al. Heterotrophic denitrification of nitrate-contaminated water using different solid carbon sources[J]. Procedia Environmental Sciences, 2011,10:72-77.
[19]
Chu L, Wang J. Denitrification performance and biofilm characteristics using biodegradable polymers PCL as carriers and carbon source[J]. Chemosphere, 2013,91(9):1310-1316.
[20]
Wu W, Yang L, Wang J. Denitrification performance and microbial diversity in a packed-bed bioreactor using PCL as carbon source and biofilm carrier[J]. Applied Microbiology and Biotechnology, 2013, 97(6):2725-2733.
