A water reuse system was designed for a demonstration plant by combining fiber filtration and electrolysis. A discharged dye wastewater after treated with biomedia was used in this study. It was found that an additional removal of suspended solids (SS) was feasible with 2‐stage filtration while electrolysis was not effective. Also, CODcr and CODMn were not removed with 2 ‐stage filtration but electrolysis resulted in about 26.9% additional removal. This indicates that electrolysis play an important role in organic removal. Removal of T‐N and T‐P was negligible with 1 and 2‐stage fiber filtration and low‐level electrolyte. However, with 2000 ppm of electrolyte, their removal efficiencies were about 83.1 and 60%, respectively, suggesting that the removal rates are well associated with the electrolyte concentrations. With high‐level electrolyte, colority was removed about 82% while chlorine ions were removed only about 10%. Therefore, to treat underground water containing high‐level salinity in the follow‐up study, based on the results in this paper, a combined system with selection of additional unit process and reverse osmosis will be designed.

Abstract
 1. 서 론
 2. 재료 및 장치제작
  2.1. 실증 plant의 여과 및 역세 원리 분석
  2.2. 실증 여과 장치의 규격 및 운전 조건 분석
  2.3. 장치제작
  2.4. 인공하수 제조 및 분석
 3. 결과 및 고찰
  3.1. SS의 제거효율
  3.2. CODcr 및 CODMn의 제거효율
  3.3. T-N, T-P의 제거효율
  3.4. 색도 및 염소의 제거 효율
 4. 결론
 REFERENCE

• 신춘환(동서대학교 에너지환경 공학과) | Choon-Hwan Shin (Department of Energy & Environmental Engineering, Dongseo University) Corresponding author