Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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Application of Response Surface Methodology to Optimize the Performance of the Electro-Chlorination Process

전기분해 염소소독공정의 반응표면분석법을 이용한 차아염소산나트륨 발생 최적화

  • Ju, Jaehyun (Water Environmental Center, Environmental Technology Division, Korea Testing Laboratory) ;
  • Park, Chan-gyu (Water Environmental Center, Environmental Technology Division, Korea Testing Laboratory)
  • 주재현 (한국산업기술시험원 환경기술본부 물환경센터) ;
  • 박찬규 (한국산업기술시험원 환경기술본부 물환경센터)
  • Received : 2022.05.06
  • Accepted : 2022.06.17
  • Published : 2022.06.30
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Abstract

Background: Disinfection is essential to provide drinking water from a water source. The disinfection process mainly consists of the use of chlorine and ozone, but when chlorine is used as a disinfectant, the problem of disinfection by-products arises. In order to resolve the issue of disinfection by-products, electro-chlorination technology that produces chlorine-based disinfectants from salt water through electrochemical principles should be applied. Objectives: This study surveys the possibility of optimally producing active chlorine from synthetic NaCl solutions using an electro-chlorination system through RSM. Methods: Response surface methodology (RSM) has been used for modeling and optimizing a variety of water and wastewater treatment processes. This study surveys the possibility of optimally producing active chlorine from synthetic saline solutions using electrolysis through RSM. Various operating parameters, such as distance of electrodes, sodium chloride concentration, electrical potential, and electrolysis time were evaluated. Results: Various operating parameters, such as distance of electrodes, sodium chloride concentration, electrical potential, and electrolysis time were evaluated. A central composite design (CCD) was applied to determine the optimal experimental factors for chlorine production. Conclusions: The concentration of the synthetic NaCl solution and the distance between electrodes had the greatest influence on the generation of hypochlorite disinfectant. The closer the distance between the electrodes and the higher the concentration of the synthetic NaCl solution, the more hypochlorous acid disinfectant was produced.

Keywords

Acknowledgement

본 연구는 산업통상자원부의 재원으로 한국산업기술진흥원의 R&D 재발견 프로젝트 사업의 지원을 받아 수행되었습니다 (과제번호: P0019316).

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