Effect of HRT on Nitrogen Removal Using ANAMMOX and Heterotrophic Denitrification

被引：0

作者：

An F.-J. ^{[1
]}

Zhao Z.-C. ^{[1
]}

Huang L. ^{[2
]}

Huang J.-M. ^{[1
]}

Shao Z.-W. ^{[1
]}

Chen Y.-Z. ^{[1
]}

机构：

[1] School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou

[2] Lanzhou Railway Design Institute Company Limited, Lanzhou

来源：

Huanjing Kexue/Environmental Science | 2018年 / 39卷 / 09期

关键词：

Anaerobic ammonium oxidation (ANAMMOX); ASBR; Contribution rate; Domestic sewage; HRT; Nitrogen removal performance;

D O I：

10.13227/j.hjkx.201802033

中图分类号：

学科分类号：

摘要：

Real domestic sewage was first treated in SBR and partial nitrification was achieved. When average concentrations of NH 4 + -N, NO 2 - -N, and COD were 37.27, 39.97, and 120 mg•L -1 , respectively, the effluent was delivered as influent of an anaerobic ammonia oxidation reactor (ASBR). The effect of different HRTs (36 h, 33 h, 30 h, 27 h) on nitrogen removal of ANAMMOX and heterotrophic denitrification were investigated under conditions of temperature of 24℃ and pH of 7.2±0.2. Results showed that ① nitrogen removal efficiency was optimum with HRT of 33 h. The average total nitrogen load rate(TNLR)and total nitrogen removal rate(TNRR)were 0.056 kg•(m 3 •d) -1 and 0.050 kg•(m 3 •d) -1 , respectively. The average effluent concentrations of NH 4 + -N, NO 2 - -N, and COD were 1.36, 0.47, and 49.79 mg•L -1 , and removal rates were 96.30%, 98.83%, and 56.17%, respectively. ΔNO 2 - -N/ΔNH 4 + -N and ΔNO 3 - -N/ΔNH 4 + -N were 1.17 and 0.15, 0.15 and 0.11 less than theoretical ANAMMOX values (1.32, 0.26) due to heterotrophic denitrification. ② The contribution of ANAMMOX to nitrogen removal decreased; however, the contribution of heterotrophic denitrification to nitrogen removal gradually increased with decreasing HRT. This provides a point of reference for ANAMMOX in engineering applications. © 2018, Science Press. All right reserved.

引用

页码：4302 / 4309

页数：7

共 27 条

[1] Van De Graaf A.A., Mulder A., De Bruijn P., Et al., Anaerobic oxidation of ammonium is a biologically mediated process, Applied and Environmental Microbiology, 61, 4, pp. 1246-1251, (1995)
[2] Van Der Star W.R.L., Abma W.R., Blommers D., Et al., Startup of reactors for anoxic ammonium oxidation: Experiences from the first full-scale anammox reactor in Rotterdam, Water Research, 41, 18, pp. 4149-4163, (2007)
[3] An F.J., Peng Y.Z., Dong Z.L., Et al., Performance of the removal of nitrogen of anaerobic ammonia oxidation under different running strategy, Environmental Science, 39, 6, pp. 2770-2777, (2018)
[4] Lu G., Xu L.Z., Shen Y.L., Et al., Quick start-up of anaerobic ammonium oxidation process, Environmental Science, 38, 3, pp. 1116-1121, (2017)
[5] Yao J.Q., Zhou S.Q., Progress of biological nitrogen removal by anaerobic ammonium oxidation, Journal of Chemical Industry and Engineering (China), 56, 10, pp. 1826-1831, (2005)
[6] Van De Graaf A.A., De Bruijn P., Robertson L.A., Et al., Metabolic pathway of anaerobic ammonium oxidation on the basis of <sup>15</sup> N studies in a fluidized bed reactor , Microbiology, 143, 7, pp. 2415-2421, (1997)
[7] Schmidt I., Sliekers O., Schmid M., Et al., New concepts of microbial treatment processes for the nitrogen removal in wastewater, FEMS Microbiology Reviews, 27, 4, pp. 481-492, (2003)
[8] Hellinga C., Schellen A.A.J.C., Mulder J.W., Et al., The Sharon process: An innovative method for nitrogen removal from ammonium-rich waste water, Water Science and Technology, 37, 9, pp. 135-142, (1998)
[9] Strous M., Kuenen J.G., Jetten M.S.M., Key physiology of anaerobic ammonium oxidation, Applied and Environmental Microbiology, 65, 7, pp. 3248-3250, (1999)
[10] Gut L., Plaza E., Trela J., Et al., Combined partial nitritation/Anammox system for treatment of digester supernatant, Water Science & Technology, 53, 12, pp. 149-159, (2006)

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