CAJ | 학술논문

　　研究了从高硫硫铁矿烧渣中微生物脱硫，考察了培养基种类、矿浆固液质量体积比、pH、细菌接种量、表面活性剂、温度及粒度等因素对微生物脱硫的影响。试验结果表明：在菌种接种量3％、矿浆pH＝1．5、温度30℃条件下对固液质量体积比3∶10的硫酸渣矿浆进行脱硫，72 h内，烧渣的硫质量分数由1．78％降至0．28％，脱硫率达86．02％，铁品位由53．78％提高到59．56％；脱硫后的烧渣符合铁精矿要求。
　　연구료종고류류철광소사중미생물탈류，고찰료배양기충류、광장고액질량체적비、pH、세균접충량、표면활성제、온도급립도등인소대미생물탈류적영향。시험결과표명：재균충접충량3％、광장pH＝1．5、온도30℃조건하대고액질량체적비3∶10적류산사광장진행탈류，72 h내，소사적류질량분수유1．78％강지0．28％，탈류솔체86．02％，철품위유53．78％제고도59．56％；탈류후적소사부합철정광요구。
The mixed culture of acidophilic bacteria was used to remove sulfur from pyrite cinder .The effects of different culture mediums ,solid-liquid ratio ,pH ,inoculum volume ,surfactant usage , temperature and particle size on the desulfurization rate were examined by shake flask experiments . The results indicated that the optimal conditions of desulfurization were solid-liquid ratio of 3∶10 , inoculation amount of 3% ,pH of 1 .5 ,rotation speed of 180 r/min and temperature of 25 ℃ .After 72 hours leaching ,the total sulfur content in the pyrite cinder was reduced significantly from 1 .78% to 0 .28% with a desulfurization rate of 86 .02% ,and iron content was enriched effectively from 53 .78%to 59 .56% .The desulfurization slag meet the requirements of ore concentrate for steelmaking .