A study on determining the optimum mixing ratio of carbon source for anaerobic treatment

혐기성처리를 위한 탄소원의 최적 혼합비율 결정에 관한 연구

  • 김은호 (동아대학교 환경공학과) ;
  • 장성호 (밀양산업대학교 환경공학과)
  • Published : 1999.09.01


The purpose of this study were to determine the optimum mixing ratio of sewage sludge and papermill sludge as carbon source required to SRB in treating abandoned mine drainage with natural purification wetland. If mixing sewage sludge/papermill sludge 2.0 SO42- reduced 46.2%, and then 30% in mixing ratio 0.5.Because sewage sludge was faster biodegradability than papermill sludge, effluent SCOD was 40mg/L in mixing ratio 0.5, and after that was all but regular. pH and ORP were almost neutral and -160mV, but after that was all but regular and it indicated that SRB activity was suitable. Fe removal rate was 60% in mixing ratio 2.0, and 54% in mixing ratio 0.5. In point of carbon source supply, It indicated that mixing ration 0.5 was considered as the most appropriate, because degradability of swewage sludge under short time was higher than that of papermill sludge.