미량오염물질 및 맛 냄새유발물질의 제거를 위한 오존/AOP 및 활성탄 공정의 적용성에 관한 연구
Study on the applicability of the ozone / AOP and activated carbon process for the removal of trace organic contaminants and taste odor causing substances
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초록
정수처리공정에서 미량유기물질과 맛·냄새물질인 2-methylisoborneol (2-MIB)와 geosmin의 제거특성을 파악하기 위하여 오존 및 advanced oxidation process (AOP)와 입상활성탄으로 구성된 biological activated carbon (BAC)공정과활성탄 단독공정인 granular activated carbon (GAC)공정에 대한 pilot plant를 수행하였다. 운전 결과, 2-MIB 159 ng/L, geosmin 371 ng/L의 고농도에서 오존 1.0 mg/L 주입시 42%, 86%의 제거율을 나타냈으며 H2O2 0.5 mg/L를추가주입한 AOP 공정에서 각각 58%, 90%의 제거율 상승을 나타냈다. 또한 BAC공정에서 99.8%의 제거율을 나타냈으며 GAC 공정에서 2 ng/L이하의 처리성능을 보였다. 따라서 미량유기물질 및 맛·냄새 물질의 지속적인 제거를 위해서는 오존/AOP와 활성탄의 처리효과를 조합한 BAC 공정이 효과적으로 나타났으며, 활성탄지의 흡착능을 지속적으로유지하기 위해서 유입농도에 따른 오존/AOP 공정의 최적화가 필요한 것으로 판단된다.
Abstract
This study was conducted to assess the removal characteristics of taste and odor causing compounds(2-MIB and geosmin) and micro organic matters. GAC and BAC process consisting of Ozone/AOP and activated carbon was applied. As a result, the influent concentration of 2-MIB 159 ng/L and geosmin 371 ng/L were removed 42% and 86% by ozone 1.0 mg/L, and 58%, 90% by AOP(ozone 1.0 mg/L + H2O2 0.5 mg/L). Also it showed less than 2 ng/L effluent in GAC process and 99.8% removal efficiency in BAC process. Therefore, BAC process combining ozone/AOP and GAC is effective for persistent removal of micro organic matters, taste and odor. It is needed for optimization of Ozone/AOP process according to influent concentrations.
참고문헌 (15)
- Acero, JL., "haracterization of oxidation processes: ozonation and the AOP O3", H2O2, 2001, pp.93(10), 90~100
- Ates, N., "Formation of chlorination by-products in waters with low SUVA - correlations with SUVA and differential UV spectroscopy", Water Research, 41, pp.4139~4148 (2007)
- AWWRF, "Pilot-Scale Evaluation of Ozone and PEROXONE, Metropolitan Water District of Southern California", AWWA, ~ (1990)
- Bartels, JHM., "Taste and Odor in Drinking Water Supplies-Phase I & II", American Water Works Association, ~ (1987)
- Bruce, D., "Removal of 2-methylisoborneol and geosmin in surface water treatment plants in Arizona", J. of Water Supply, 51, pp.183~197 (2002)
- Edzward, JK., "Enhanced coagulation: US requirements and a broader view", Water Sci.Technol., 40(9), pp.63~70 (1999)
- 함영완, "오존(O3)․입상활성탄(GAC) 공정을 이용한 맛․냄새 유발물질과 유기물질의 제거특성 평가", 상하수도학회지, 26(2), pp.237~247 (2012), 대한상하수도학회[DOI]
- Efficient removal of taste and odor in Hangang area watershed(III), "K-water and Korea Water Resources Corporation(K-water, KWRC)", Korea Water Resources Corporation, ~, pp.KIWE-IWW-04-01 (2005)
- Optimization of Ozone and GAC for Goyang and Banwol WTP and Development of Advanced Oxidation Process for filed application, "K-water and Korea Water Resources Corporation(K-water, KWRC)", Korea Water Resources Corporation, ~, pp.KIWE-WS1-10-06 (2010)
- Lalezary, S., "Oxidation of Five Earthy-Musty Taste and Odor Compounds", J. of AWWA, 78(3), pp.62~69 (1986)
- Lloyd, SW., "Rapid analysis of geosmin and 2-methylisoborneol in water using solid phase micro extraction procedures", Water Research, 32, pp.2140~2146 (1998)
- Statistics of Waterworks, The survey on business type, "Ministry of Environment", Ministry of Environment, ~, pp.11-1480000-000181-10 (2013)
- Roche, P., "after oxidation by ozone", hydrogen peroxide using the Ozotest or Peroxotest methods, 1994, pp.16(2), 135~155
- The Report of Seoul City's Advanced Water Treatment III, "Seoul Waterworks Research Institute(SWRI)", Seoul Waterworks Research Institute, ~ (2007)
- Seoul Waterworks Research Institute(SWRI), "The guideline of operating manual of Seoul city's Advanced Water Treatment Plant" (2013), Seoul Waterworks Research Institute