원문정보
Effect of Sludge Concentration on Removal of Heavy Metals from Digested Sludge by Thiobacillus ferrooxidans
초록
영어
To investigate the feasibility of the microbial process for removal of heavy metals from the high solid content sludge, the effect of sludge concentration on the solubilization of heavy metals by an iron oxidizing bacterium Thiolbacillus ferrooxidans was examined. With increasing the sludge concentration, the removal efficiency of heavy metals and the oxidation rate of iron were inhibited. Especially, when the sludge concentration is over 5% (w/v), the activity of T. ferrooxidans was remarkably inhibited. This inhibition is considered to occur due to the dissolved inhibitory materials such as organic compounds, heavy metals, and others which were extracted from the sludge during incubation period. In conclusion, the microbial process by T. ferrooxidans is only effectively used in ranges of 1.3 to 4.0% (w/v) sludge concentration.
목차
재료 및 방법
슬러지
세포 배양 및 조건
슬러지 중금속 제거
분석법
결과 및 고찰
요약
감사
참고문헌