한국수처리학회지 (Journal of Korean Society of Water Science and Technology)

  • 제26권6호
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  • Pages.109-115
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  • 2018
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  • 1225-7192(pISSN)
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  • 2289-0076(eISSN)
한국수처리학회 (Korean Society of Water Science and Technology)
권호 표지
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화학적 산화공정을 이용하여 소변의 색도 및 유기물 처리를 통한 재이용 기술 연구

A Study on Removal of Organic Matter and Chromaticity from Urine Using Chemical Oxidization Process

  • Shin, Sung-Hoon (Korea Institute of Safe Drinking Water Research) ;
  • Jung, Jong-Tai (Dept. of Environmental Engineering, University of Incheon) ;
  • Cho, Yong-Chul (Han-river Environment Research Center, National Institute of Environment Research)
  • 투고 : 2018.11.26
  • 심사 : 2018.12.24
  • 발행 : 2018.12.31
⟨ 이전 논문 다음 논문 ⟩

초록

This study was conducted to solve the water shortage problem by reclaiming urine from homes or public places and using it as cleaning water for toilets. The process used in this experiment is a chemical oxidation process combining ozone, hydrogen peroxide, and UV. We set the key substance that is to be removed as chromaticity and conducted the experiment to remove it. If the quantity or concentration of injected ozone, UV, and hydrogen peroxide is insufficient, then the chromaticity will initially increase due to low oxidizing power, and will later decrease. In addition, the efficiency of removing chromaticity appeared to be higher, depending on the quantity of ozone injected, for medium concentrated urine than highly concentrated urine. However, the absolute quantity of removed chromaticity was about 68% higher for highly concentrated urine, when 16 g/hr of ozone was injected. The higher the pH level, the reaction time and efficiency of removing chromaticity were higher, and in normal conditions, in reference to a pH of 8.55, there was a 6% difference in efficiency between a pH level of 5.05 and a pH level of 10.12. Finally, when processing urine through an ozone-only process, COD decreased steadily over time, but DOC did not decrease. This is because ozone reacts selectively with organic matter.

키워드

과제정보

연구 과제 주관 기관 : 인천대학교

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