Browse > Article
http://dx.doi.org/10.4491/KSEE.2013.35.5.301

Sequential Anoxic/Aerobic Biofilm Reactors and MF Membrane System for the Removal of Perchlorate and Nitrate  

Choi, Hyeoksun (Department of Civil and Environmental Engineering, Wonkwang University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.35, no.5, 2013 , pp. 301-306 More about this Journal
Abstract
This research was conducted to investigate whether sequential anoxic/aerobic biofilm reactors and microfilteration (MF) membrane system can be used as a direct treatment for the removal of perchlorate and nitrate in groundwater. The biofilm process consisted of an anoxic first stage to remove perchlorate and nitrate and aerobic second stage to remove remaining acetate used as a carbon source for dissimilatory reduction of perchlorate and nitrate. In final stage, hollow fiber MF membrane was used to remove turbidity. In this research, perchlorate was reduced from the influent concentration of 102 ${\mu}/L$ to below the IC detection level (5 ${\mu}/L$) and nitrate was reduced from 61.8 mg/L (14 mg/L $NO_3$-N) to 4.4 mg/L (1 mg/L $NO_3$-N). Acetate used as a carbon source was consumed from 179 mg/L $CH_3COO-$ to 117 and 11 mg/L $CH_3COO^-$ in effluents from anoxic and aerobic biofilm reactors, respectively. Turbidity was reduced from 3.0 NTU to 1.5, 0.3, and 0.2 NTU in effluents from anoxic/aerobic biofilm reactors and MF membrane, respectively. It is expected that the sequential anoxic/aerobic biofilm reactors and MF membrane system can efficiently remove perchlorate and nitrate in surface water or groundwater.
Keywords
Perchlorate; Nitrate; Anoxic/aerobic Biofilm Reactor; MF;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Yoon, Y., Amy, G., Cho, J., Her, N. and Pellegrino, J., "Transprot of perchlorate through NF and UF membranes," Desalination, 147(1-3), 11-17(2002).   DOI   ScienceOn
2 Paul, B. H., "Perchlorate biodegradation for water treatment," Environ. Sci. Technol. 39(11), 239A-247A(2005).   DOI   ScienceOn
3 Gullick, R. W., Lechevallier, M. W. and Barhorst, T., "Occurrence of perchlorate in drinking waster sources," J. Am. Water Works Assn., 93(1), 66-77(2001).
4 Urbansky, E. T., "Perchlorate chemistry: implications for analysis and remediation," Biorem. J., 2(2), 81-95(1998).   DOI   ScienceOn
5 Urbansky, E. T. and Schock, M. R., "Issues in managing the risks associated with perchlorate in drinking water," J. Environ. Manage., 56(2), 79-95(1999).   DOI   ScienceOn
6 Coates, J. D., Michaelidou, U., Bruce, R. A., O'connor, S. M., Crespi, J. N. and Achenbach, L. A., "Ubiquity and diversity of dissimilatory (per)chlorate reducing bacteria," Appl. Environ. Microbiol., 65(12), 5234-5241(1999).
7 U.S. Environmental Protection Agency, Technical fact sheetperchlorate, EPA 505-F-11-003, http://www.epa.gov/fedfac/pdf/technical_fact_sheet_perchlorate.pdf, May(2012).
8 Ministry of Environment, Guideline for perchlorate reduction in Nakdong River, http://www.me.go.kr/web/286/me/common/board/detail.do?boardId=notice_02&decorator=me&idx=149317, September(2006).
9 Tripp, A. R. and Clifford, D. A., "Ion exchange for the remediation of perchlorate-contaminated drinking water," J. Am. Water Works Assoc., 98(4), 105-114(2006).
10 Logan, B. E., "A review of chlorate- and perchlroate- respiring microorganisms," Biorem. J., 2(2), 69-79(1998).   DOI   ScienceOn
11 Rikken, G. G., Kroon, A. G. M., and van Ginkel, C. G., "Transformation of (per)chlorate into chloride by a newly isolated bacterium: reduction and dismutation," Appl. Microbiol. Biotechnol., 45(3), 420-426(1996).   DOI   ScienceOn
12 Min, B., Evans, P. J., Chu, A. K. and Logan, B. E., "Perchlorate removal in sand and plastic media bioreactors," Water Res., 38(1), 47-60(2004).   DOI   ScienceOn
13 Choi, H. and Silverstein, J., "Effluent recirculation to improve perchlorate reduction in a fixed biofilm reactor," Biotechnol. Bioeng., 98(1), 132-140(2007).   DOI   ScienceOn
14 Oh, J. and Silverstein, J., "Acetate limitation and nitrite accumulation during denitrification," J. Environ. Eng., 125(3), 234-242(1999).   DOI   ScienceOn
15 Herman, D. C. and Frankenberger, J. W. T., "Bacterial reduction of perchlorate and nitrate in water," J. Environ. Qual., 28(3), 1018-1024(1999)
16 Choi, H. and Silverstein, J., "Inhibition of perchlorate reduction by nitrate in a fixed biofilm reactor," J. Hazard. Mater., 159(2-3), 440-445(2008)   DOI   ScienceOn