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Study on the Biological Denitrification Reaction of High-Salinity Wastewater using an Aerobic Granular Sludge (AGS)

호기성 그래뉼 슬러지를 이용한 고농도 염분 함유 폐수의 생물학적 탈질 반응에 관한 연구

  • Kim, Hyun-Gu (BlueBank Co., Ltd., Business incubator center, Myongji University) ;
  • Ahn, Dae-Hee (BlueBank Co., Ltd., Business incubator center, Myongji University)
  • Received : 2019.05.20
  • Accepted : 2019.06.19
  • Published : 2019.07.31

Abstract

The purpose of this study is to biological treatment of high salinity wastewater using Aerobic Granular Sludge (AGS). In laboratory scale's experiments research was performed using a sequencing batch reactor, and evaluation of the denitrification reaction in accordance with the injection condition of salinity concentration, surface properties of microorganisms, and sludge precipitability was performed. The results showed that the salinity concentration increased up to 1.5%, and there was no significant difference in the nitrogen removal efficiency; however, it showed a tendency to decrease gradually from 2.0% onward. The specific denitrification rate (SDNR) was 0.052 - 0.134 mg $NO_3{^-}-N/mg$ MLVSS (mixed liquor volatile suspended solid)${\cdot}day$. The MLVSS/MLSS (mixed liquor suspended solid) ratio decreased to 76.2%, and sludge volume index ($SVI_{30}$) was finally lowered to 57 mL/g. Using an optical microscope, it was also observed that the initial size of the sludge was 0.2 mm, and finally it was formed to 0.8-1.0 mm. Therefore, salinity injection provides favorable conditions for the formation of an AGS, and it was possible to maintain stable granular sludge during long-term operation of the biological treatment system.

Keywords

References

  1. American Public Health Association (APHA), 2008, Standard methods for the examination of water and wastewater, 21st edition, American public health association, Washington D.C., USA.
  2. Carrera, P., Campo, R., Mendez, R., Bella, G. D., Campos, J. L., Mosquera-Corral, A., Val del Rio, A., 2019, Does the feeding strategy enhance the aerobic granular sludge stability treating saline effluents?, Chemosphere, 226, 865-873. https://doi.org/10.1016/j.chemosphere.2019.03.127
  3. Choi, Y. B., Kwon, J. H., Rim, J. M., 2010, Effect of salt concentration on the aerobic biodegradability of sea food wastewater, J. Korean Soc. Environ. Eng., 32(3), 256-263.
  4. Corsino, S. F., Capodici, M., Pippo, F. D., Tandoi, V., Torregrossa, M., 2019, Comparison between kinetics of autochthonous marine bacteria in activated sludge and granular sludge systems at different salinity and SRTs, Water Res., 148, 425-437. https://doi.org/10.1016/j.watres.2018.10.086
  5. De Sousa Rollemberg, S. L., Barros, A. R. M., Firmino, P. I. M., dos Santos, A. B., 2018, Aerobic granular sludge: Cultivation parameters and removal mechanisms, Bioresour. Technol., 270, 678-688. https://doi.org/10.1016/j.biortech.2018.08.130
  6. Fernandez-Nava, Y., Maranon, E., Soons, J., Castrillon, L., 2008, Denitrification of wastewater containing high nitrate and calcium concentrations, Bioresour. Technol., 99(17), 7976-7981. https://doi.org/10.1016/j.biortech.2008.03.048
  7. Ji, J., Peng, Y., Wang, B., Mai, W., Li, X., Zhang, Q., Wang, S., 2018, Effects of salinity build-up on the performance and microbial community of partial-denitrification granular sludge with high nitrite accumulation, Chemosphere, 209, 53-60. https://doi.org/10.1016/j.chemosphere.2018.05.193
  8. Jo, Y. N., Choi, Y. B., Han, D. J., Kwon, J. H., 2017, Effect of decay rate coefficients with sulfur denitrification due to salt in seafood wastewater, J. Korean Acad. Ind. Coop. Soc., 18(8), 367-377.
  9. Kim, Y. K., Kang, S. H., 2012, Evaluation of the effect of high salinity RO concentrate on the microbial acclimation/cultivation characteristics in biological wastewater treatment process, J. Environ. Impact Assess., 21(5), 707-713. https://doi.org/10.14249/EIA.2012.21.5.707
  10. Li, H., Wen, Y., Cao, A., Huang, J., Zhou, Q., 2014, The influence of multivalent cations on the flocculation of activated sludge with different sludge retention times, Water Res., 55, 225-232. https://doi.org/10.1016/j.watres.2014.02.014
  11. Li, X., Luo, J., Guo, G., Mackey, H. R., Hao, T., Chen, G., 2017, Seawater-based wastewater accelerates development of aerobic granular sludge: A laboratory proof-of-concept, Water Res., 115(15), 210-219. https://doi.org/10.1016/j.watres.2017.03.002
  12. Li, Z. H., Wang, X. C., 2008, Effects of salinity on the morphological characteristics of aerobic granules, Water Sci. Technol., 58(12), 2421-2426. https://doi.org/10.2166/wst.2008.838
  13. Min, J. H., Kwon, J. C., Choi, D. H., Kim, T. D., 2018, The wastewater treatment process for high salinity wastewater, J. Korean Soc. Urban Enviro., 18(1), 35-39. https://doi.org/10.33768/ksue.2018.18.1.35
  14. Nam, Y. R., 2015, Isolation and characterization of halophilic bacteria from high salt wastewater, Master Dissertation, Ulsan University, Ulsan.
  15. Ou, D., Li, H., Li, W., Wu, X., Wang, Y. Q., Liu, Y. D., 2018, Salt-tolerance aerobic granular sludge: Formation and microbial community characteristics, Bioresour. Technol., 249, 132-138. https://doi.org/10.1016/j.biortech.2017.07.154
  16. Ou, D., Li, W., Li, H., Wu, X., Li, C., Zhuge, Y., Liu, Y. D., 2018, Enhancement of the removal and settling performance for aerobic granular sludge under hypersaline stress, Chemosphere, 212, 400-407. https://doi.org/10.1016/j.chemosphere.2018.08.096
  17. Park, H. J., 2011, Characteristics of pretreatment in different temperature for desalination using reverse osmosis membrane, Master Dissertation, Dankook University, Yongin.
  18. Park, S. J., Lee, S. H., 2015, A Study on the biological treatment of acid pickling wastewater containing a high concentration of nitrate nitrogen, J. Korean Soc. Water Environ., 31(3), 253-261. https://doi.org/10.15681/KSWE.2015.31.3.253
  19. Su, K. Z., Ni, B. J., Yu, H. Q., 2013, Modeling and optimization of granulation process of activated sludge in sequencing batch reactors, Biotechnol. Bioeng., 110(5), 1312-1322. https://doi.org/10.1002/bit.24812
  20. Szabo, E., Hermansson, M., Modin, O., Persson, F., Wilen, B. M., 2016, Effects of wash-out dynamics on nitrifying bacteria in aerobic granular sludge during start-up at gradually decreased settling time, Water, 8(5), 172. https://doi.org/10.3390/w8050172
  21. Taheri, E., Hajian, M. H. K., Amin, M. M., Nikaeen, M., Hassanzadeh, A., 2012, Treatment of saline wastewater by a sequencing batch reactor with emphasis on aerobic granule formation, Bioresour. Technol., 111, 21-26. https://doi.org/10.1016/j.biortech.2012.01.164
  22. Tan, X., Acquah, I., Liu, H., Li, W., Tan, S., 2019, A Critical review on saline wastewater treatment by membrane bioreactor (MBR) from a microbial perspective, Chemosphere, 220, 1150-1162. https://doi.org/10.1016/j.chemosphere.2019.01.027
  23. Wang, Z., van Loosdrecht, M. C. M., Saikaly, P. E., 2017, Gradual adaptation to salt and dissolved oxygen: Strategies to minimize adverse effect of salinity on aerobic granular sludge, Water Res., 124, 702-712. https://doi.org/10.1016/j.watres.2017.08.026
  24. Wei, D., Wang, Y., Wang, X., Li, M., Han, F., Ju, L., Zhang, G., Shi, L., Li, K., Wang, B., Du, B., Wei, Q., 2015, Toxicity assessment of 4-chlorophenol to aerobic granular sludge and its interaction with extracellular polymeric substances, J. Hazard Mater., 289, 101-107. https://doi.org/10.1016/j.jhazmat.2015.02.047
  25. Yae, J. B., Ryu, J. H., Hong, S. W., Kim, H. G., Ahn, D. H., 2018, Applicability of the SBR Process using Aerobic Granular Sludge (AGS) in municipal wastewater treatment, J. Environ. Sci. Int., 27(4), 233-240. https://doi.org/10.5322/JESI.2018.27.4.233
  26. Yu, M. J., Jung, T. M., Jang, K. J., 1999, Factors affecting denitrifying reaction at high salt concentration (I), J. Korean Soc. Environ. Eng., 21(4), 785-793.