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전기 응집법을 이용한 염색 폐수의 처리에서 전류 밀도와 전해질의 COD 제거율에 대한 영향 KCI 등재

Effects of Current Density and Electrolyte on COD Removal Efficiency in Dyeing Wastewater Treatment by using Electro-coagulation

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한국폐기물자원순환학회지 (Journal of Korea Society of Waste Management)
한국폐기물자원순환학회 (Korea Society Of Waste Management)
초록

In the industrial wastewater that occupies a large proportion of river pollution, the wastewater generated in textile, leather, and plating industries is hardly decomposable. Though dyeing wastewater has generally been treated using chemical and biological methods, its characteristics cause treatment efficiencies such as chemical oxygen demand (COD) and suspended solids (SS) to be reduced only in the activated sludge method. Currently, advanced oxidation technology for the treatment of dyeing wastewater is being developed worldwide. Electro-coagulation is highly adapted to industrial wastewater treatment because it has a high removal efficiency and a short processing time regardless of the biodegradable nature of the contaminant. In this study, the effects of the current density and the electrolyte condition on the COD removal efficiency in dyeing wastewater treatment by using electro-coagulation were tested with an aluminum anode and a stainless steel cathode. The results are as follows: ① When the current density was adjusted to 20 A/m2, 40 A/m2, and 60 A/m2 under the condition without electrolyte, the COD removal efficiency at 60 min was 62.3%, 72.3%, and 81.0%, respectively. ② The removal efficiency with NaCl addition was 7.9% higher on average than that with non-addition at all current densities. ③ The removal efficiency with Na2SO4 addition was 4.7% higher on average than that with non-addition at all current densities.

목차
Abstract
 I. 서 론
 II. 실험장치 및 방법
  1. 시료 성상
  2. 실험 장치
  3. 실험 방법
 III. 연구 결과
  1. 전류밀도에 따른 CODMn 처리 특성
  2. 전해질 종류에 따른 CODMn 처리 특성
 IV. 결 론
 References
저자
  • 장성호(부산대학교 바이오환경에너지학과) | Seong-Ho Jang (Department of Bio-Environmental Energy, Pusan National University)
  • 김고은(부산대학교 바이오환경에너지학과) | Go-Eun Kim (Department of Bio-Environmental Energy, Pusan National University) Corresponding author
  • 강정희(부산대학교 바이오환경에너지학과) | Jeong-Hee Kang (Department of Bio-Environmental Energy, Pusan National University)
  • 류재용(경남대학교 환경에너지공학과) | Jae-Yong Ryu (Department of Environment and Energy Engineering, Kyungnam University)
  • 이원기(부경대학교 고분자공학과) | Won-ki Lee (Department of Polymer Engineering, Pukyong National University)
  • 이재용(경운대학교 항공신소재공학과) | Jae-Yong Lee (Department of Advanced Aerospace Materials Engineering, Kyungwoon University)
  • 박진식(경운대학교 보건바이오학과) | Jin-Sick Park (Department of Healthcare & Biotechnology, Kyungwoon University)