To treat chromaticity contained in effluents of dyeing wastewater efficiently, potent dye-degrading microorganisms were isolated from influent water, aeration- tank sludge, recycle water and settling-tank sludge located in leather and dyeing treatment plant. Six potent strains were finally isolated and identified as Comamonas testosteroni, Methylobacteriaceae bacterium, Stenotrophomonas sp., Kluyveromyces fragilis, Ascomycetes sp. and Basidiomycetes sp. When Basidiomycetes sp. was inoculated into ME medium containing basal mixed-dyes, 93% of color was removed after 8 days incubation. In the same experiment, the 1:1 mixed culture of Basidiomycetes sp. and photosynthetic bacterium exhibited 88% of color removal; however, it showed better color removal for single-color dyes. The aeration-tank and settling-tank samples revealed higher color removal (95-96%) for black dyes. The settling-tank sample also revealed higher color removal on basal mixed-dyes, which resulted in 90% color removal after 6-h incubation. From the above results, it is expected to achieve a higher color removal using the mixed microorganisms that were isolated from aeration-tank and settling-tank samples.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 실험재료
  2.2. 실험방법
 3. 결과 및 고찰
  3.1. 염료분해능 균주 분리
  3.2. 분리 균주의 동정
  3.3. Tube 단위에서의 색도변화 실험
  3.4. Flask 단위에서의 색도변화 실험
 4. 결 론
 참 고 문 헌

• 김정태(부산대학교 환경시스템학과) | Jung Tae Kim (Department of Environmental System, Pusan National University)
• 박근태(부산대학교 산학협력단) | Guen Tae Park (Institute for Research & Industry Cooperation, Pusan National University)
• 이건((주) 동창) | Geon Lee (Research Department, Dongchang Corporation)
• 강경환(부경대학교 생물공학과) | Kyeong Hwan Kang (Department of Biotechnology and Bioengineering, Pukyong National University)
• 김중균(부경대학교 생물공학과) | Joong Kyun Kim (Department of Biotechnology and Bioengineering, Pukyong National University)
• 이상준(부산대학교 미생물학과) | Sang Joon Lee (Department of Microbiology, Pusan National University) Corresponding author