Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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Removal of Nitrogen in Seafood Processing Wastewater Using High-rate Anaerobic Process and Nitritation-denitritation

고율 혐기성 공정과 아질산-아탈질을 연계한 수산물가공폐수의 질소제거

  • Choi, Yong-Bum (Department of Environmental Engineering Kangwon National University) ;
  • Kang, Dong-Gu (Department of Environmental Engineering Kangwon National University) ;
  • Park, Sang-Sung (Department of Environmental Engineering Kangwon National University) ;
  • Eum, Ki-Hyun (Kuwha Co., Ltd.) ;
  • Rim, Jay-Myung (Department of Environmental Engineering Kangwon National University) ;
  • Kwon, Jae-Hyouk (Department of Environmental Engineering Kangwon National University)
  • Received : 2011.06.27
  • Accepted : 2011.07.18
  • Published : 2011.08.31
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Abstract

Objectives: Organic matter and nitrogen were removed using the EGSB process, a high-rate anaerobic process, in combination with a nitritation-denitritation process, in order to ensure the stable treatment of seafood processing wastewater. Methods: The upflow velocity of an EGGS reactor was operated at 10 m/hr for maximal organics removal efficiency. For removal of nitrogen from seafood processing wastewater a nitritation-denitriation process was applied Results: The efficiency of the EGSB process showed that it has an 80% or more organic matter (CODcr) removal efficiency with an HRT of six hours or more at influent loadings of 17.34 kgCOD/$m^3$/day or less. The methane product for TCODcr removal was 0.23-0.38 $m^3CH_4$/kgCODrem., which was similar to the theoretical generation of STP-state methane, 0.35 $m^3CH_4$/kgTCODrem. In the nitritation-denitritation process, the nitritation conversion rate to $NH_4^+$-N concentration was 82% to 87%, 72% to 81% and 64% to 69% when HRT was 24 hr, 21 hr and 18 hr, respectively. In the denitritation process, the ratio of SCOD consumption to NOx-N removal ranged from 2.347 to 2.587. It was 2.472 on average. Conclusions: The optimal HRT for stable processing of seafood processing wastewater is six hours or more. The ratio of nitrite to total NOx-N was 82% to 96%, which indicates that nitrite accounts for the largest portion of the product.

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References

  1. Choi YB, Kim GY, Kwon JH. Anaerobic/Aerobic biological reaction characteristics of the marine products industry wastewater. J Environ Health Sci. 2008; 34(6): 452-458. https://doi.org/10.5668/JEHS.2008.34.6.452
  2. Choi YB, Kwon JH, Rim JM. Effect of the salt concentration in seafood processing wastewater on the anaerobic ultimate biodegradability and multiple decay rate of organic matter. J Kor Soc Environ Eng. 2010; 32(11): 1038-1045.
  3. Choi YB, Kwon JH, Rim JM. Effect of salt concentration on the aerobic biodegradability of sea food wastewater. J Kor Soc Environ Eng. 2010; 32(3): 256-263.
  4. Lee HM, Yang BS. The effect of upflow velocity on operating characteristics in EGSB system. J Kor Soc Environ Eng. 1997; 19(10): 1245-1258.
  5. Gil KI. Nitritation of anaerobic digester supernatant from sludge processing MWTP. J Kor Soc Wat Qual. 2006; 22(3): 540-545.
  6. Choi JH, Lee YW, Yun ZH. Removal of concentrated nitrogen from the recycle water by biological nitritation-denitritation. J Kor Soc Environ Eng. 2001; 23(3): 371-381.
  7. Han JH, Kwon M, Han JH, Yun HZ, Nam HU, Ko JH. Evaluation of operating parameters of reject water treatment system with pilot-scale biofilm nitritation plant at field condition. J Kor Soc Wat Qual. 2007; 23(5): 636-641.
  8. Moon BH, Yoon CH, Seo GT, Kim SS. Effects of C/N ratio salt concentration on pollutant removal in SBR. J Kor Soc Environ Eng. 2002; 24(2): 251- 260.
  9. Won CH. Nutrient removal of slurry-type swine wastewater using main processor of UASB reactor, ph D. thesis. Chuncheon: Kangwon National University; 2005. p.125-127.
  10. EPA, Manual-Nitrogen Control, EPA/625/R-93/010, Washington, D.C., USA; 1993. p.104-109.
  11. Barnes D, Bliss PJ. Biological control of nitrogen in wastewater treatment, New York: E. & F. N. Spon; 1983. p. 312-315.
  12. Jewell WJ, Richards BK, Cummings RJ, White TE. Methods for kinetic analysis of methane fermentation in high solids biomass digesters. J Biomass and Bioenergy. 1991; 1(2): 65-73. https://doi.org/10.1016/0961-9534(91)90028-B
  13. Gil KI, Lee YH, Choi ES, Yun ZH, Ha JS. Nitritation of anaerobic digester supernatant by suspended growth reactor and biofilm reactor. J Kor Soc Environ Eng. 2002; 24(8): 1415-1422.

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