Treatment of Textile Wastewater by Anaerobic Sludge and Aerobic Fixed-Bed Biofilm Reactor

혐기성 슬러지 공정과 호기성 고정생물막 공정을 이용한 염색폐수 처리

  • 박영식 (대구대학교 보건과학부) ;
  • 문정현 (서봉리사이클링㈜)
  • Published : 2002.09.01

Abstract

This study was carried out to treat textile wastewater using anaerobic sludge and aerobic fixed-bed biofilm reactor immobilized with Bacillus sp. dominated activated sludge(Bacillus sp. fraction : 81.5%). The range of influent con-centration of SCOD and soluble color were 1032-1507 mg/1, and 1239-1854 degree, respectively. Continuous treatment experiments were performed with variation of textile wastewater ratio at a same HRT. When textile wastewater ratio was 100%(HRT : 24 hours), The removal efficiency of SCOD and soluble color were 88% and 78%, respectively. When compare aerobic reactor of this study that was immobilized with Bacillus sp. dominated activated sludge to other study that was immobilized with activated sludge, SCOD and soluble color removal efficiency of this study showed a little higher efficiency than immobilized with activated sludge. The Bacillus sp. fraction of initial condition was 81.5%), but the fraction after operation was decreased to 31.8%).

Keywords

Textile wastewater;Bacillus sp.;Anaerobic/aerobic reactor system;Decolorization;COD removal

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