High ammonia nitrogen wastewater was treated in an integrated anaerobic ammonia oxidation SBR reactor. Effects of particle sizes (R1:0.2-0.5mm,R2:0.5-1mm,R3:>1mm) and C/N ratios on the nitrogen removal from granular sludge were studied. The results showed that the AOB activities of R1, R2 and R3 decreased in turn; R2 had the highest NOB activity, followed by R1, and R3 had the lowest; and R2 had the highest activity of ANAMMOX, followed by R1, and R3 had the lowest. When the C/N ratio increased, the granular sludge morphology changed obviously, and microscopic examination showed that the middle red part gradually reduced and peripheral yellow encirclement occurred. The total nitrogen removal load reduced from 0.59kg/(m3·d) to 0.34kg/(m3·d), and the total nitrogen removal rate increased from 94.75% to 95.07% and then decreased to 87.55%. The results showed that the C/N ratio should not exceed 1.5 in CANON process.
LI Jinqing
,
HAN Xiaoyu
,
HUANG Jing
,
ZHANG Shujun
,
LIU Honghui
,
LIU Xinchun
. Effects of particle sizes and C/N ratios on the nitrogen removal performance in CANON system[J]. Journal of University of Chinese Academy of Sciences, 2018
, 35(6)
: 845
-850
.
DOI: 10.7523/j.issn.2095-6134.2018.06.017
[1] Mulder A, van de Graaf A A, Robertson L A, et al. Anaerobic ammonium oxidation discovered in a denitrifying fluidized bed reactor[J]. FEMS Microbiology Ecology, 1995, 16(3):177-184.
[2] 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 & Biotechnology, 1998, 50(5):589-596.
[3] Wr V D S, Abma W R, Blommers D, et al. Startup of reactors for anoxic ammonium oxidation:experiences from the first full-scale anammox reactor in Rotterdam[J]. Water Research, 2007, 41(18):4149-4163.
[4] Wett B. Development and implementation of a robust deammonification process[J]. Water Science & Technology A Journal of the International Association on Water Pollution Research, 2007, 56(7):81.
[5] 张亮. 高氨氮污泥消化液生物脱氮工艺与优化控制[D]. 哈尔滨:哈尔滨工业大学, 2013.
[6] 郑照明, 刘常敬, 郑林雪,等. 不同粒径的厌氧氨氧化颗粒污泥脱氮性能研究[J]. 中国环境科学, 2014, 34(12):3078-3085.
[7] 徐亚慧, 刘苗苗, 张树军,等. 反应器形式及污泥形态对厌氧氨氧化菌群落结构的影响[J]. 中国科学院研究生院学报, 2014, 31(1):67-73.
[8] Philips S, Laanbroek H J, Verstraete W. Origin, causes and effects of increased nitrite concentrations in aquatic environments[J]. Reviews in Environmental Science & Biotechnology, 2002, 1(2):115-141.
[9] Rathnayake R M, Song Y, Tumendelger A, et al. Source identification of nitrous oxide on autotrophic partial nitrification in a granular sludge reactor[J]. Water Research, 2013, 47(19):7078-7086.
[10] Ali M, Chai L Y, Tang C J, et al. The increasing interest of ANAMMOX research in China:bacteria, process development, and application[J]. BioMed Research International,2013, 2013(6):134914.
[11] 程军,张亮,杨延栋,等.一体化厌氧氨氧化反应器的优化及其稳定性研究[J].中国环境科学, 2016, 36(4):1027-1032.
[12] Hubaux N, Wells G, Morgenroth E. Impact of coexistence of flocs and biofilm on performance of combined nitritation-anammox granular sludge reactors[J]. Water Research, 2015, 68:127-139.
[13] 孙延芳, 韩晓宇, 张树军,等. CANON颗粒污泥工艺的启动与负荷提高策略[J]. 环境科学, 2017, 38(8):3429-3434.
[14] Zhang L, Liu M, Zhang S, et al. Integrated fixed-biofilm activated sludge reactor as a powerful tool to enrich anammox biofilm and granular sludge.[J]. Chemosphere, 2015, 140:114-118.
[15] Wrl V D S, Miclea A, Van Dongen U, et al. The membrane bioreactor:A novel tool to grow anammox bacteria as free cells[J]. Biotechnology & Bioengineering, 2008, 101(2):286-294.
[16] 郑照明,杨函青,马静,等.SNAD反应器中颗粒污泥和絮体污泥脱氮特性[J].中国环境科学, 2015, 35(10):2996-3002.
[17] Hubaux N, Wells G, Morgenroth E. Impact of coexistence of flocs and biofilm on performance of combined nitritation- anammox granular sludge reactors[J]. Water Research, 2015,68:127-139.
[18] 张玉秀, 柴团耀. 废水生物处理过程中污泥的微生物种群结构和PAHs降解菌研究进展[J]. 中国科学院大学学报, 2016, 33(1):1-8.
[19] Kindaichi T, Tsushima I, Ogasawara Y, et al. In situ activity and spatial organization of anaerobic ammonium-oxidizing (anammox) bacteria in biofilms[J]. Applied & Environmental Microbiology, 2007, 73(15):4931-4939.
[20] Du R, Peng Y, Cao S, et al. Advanced nitrogen removal with simultaneous Anammox and denitrification in sequencing batch reactor.[J]. Bioresource Technology, 2014, 162(6):316-322.
[21] Ni S Q, Ni J Y, Hu D L, et al. Effect of organic matter on the performance of granular anammox process[J]. Bioresource technology, 2012, 110:701-705.
[22] 朱泽沅, 于德爽, 李津. C/N比对ANAMMOX与反硝化协同脱氮性能影响及其动力学[J]. 环境工程学报, 2016, 10(6):2813-2818.
