矿冶工程
礦冶工程
광야공정
Mining and Metallurgical Engineering
2015年
4期
87-90
,共4页
生物浸出%矿石粒度%矿浆浓度%混合菌%低品位磷矿%溶解
生物浸齣%礦石粒度%礦漿濃度%混閤菌%低品位燐礦%溶解
생물침출%광석립도%광장농도%혼합균%저품위린광%용해
bio-leaching%particle size%pulp density%mixed bacteria%low-grade rock phosphate%biosolubilization
研究了不同矿石粒度和矿浆浓度下，来源于根际土壤的混合菌对两种低品位磷矿粉的溶解作用。结果表明，该混合菌能有效溶解低品位磷矿粉，并释放出其中的可溶性磷。当矿石粒度和矿浆浓度分别为150μm和1％时，混合菌对两种低品位磷矿粉的溶解效果最好。相同反应条件下，矿物组分不同，混合菌对磷矿粉的溶解效果不一样。相关性分析结果表明，培养液中混合菌的生物量与溶磷量之间呈较强正相关，而pH值和溶磷量之间呈一般负相关。
研究瞭不同礦石粒度和礦漿濃度下，來源于根際土壤的混閤菌對兩種低品位燐礦粉的溶解作用。結果錶明，該混閤菌能有效溶解低品位燐礦粉，併釋放齣其中的可溶性燐。噹礦石粒度和礦漿濃度分彆為150μm和1％時，混閤菌對兩種低品位燐礦粉的溶解效果最好。相同反應條件下，礦物組分不同，混閤菌對燐礦粉的溶解效果不一樣。相關性分析結果錶明，培養液中混閤菌的生物量與溶燐量之間呈較彊正相關，而pH值和溶燐量之間呈一般負相關。
연구료불동광석립도화광장농도하，래원우근제토양적혼합균대량충저품위린광분적용해작용。결과표명，해혼합균능유효용해저품위린광분，병석방출기중적가용성린。당광석립도화광장농도분별위150μm화1％시，혼합균대량충저품위린광분적용해효과최호。상동반응조건하，광물조분불동，혼합균대린광분적용해효과불일양。상관성분석결과표명，배양액중혼합균적생물량여용린량지간정교강정상관，이pH치화용린량지간정일반부상관。
The effects of particle size and pulp density on the biosolubilization of two different low?grade rock phosphates by mixed bacteria were investigated. The results show that mixed bacteria from plant rhizospheric soils could efficiently solubilize the low?grade rock phosphate and release the soluble phosphate. The optimal particle size and pulp density were 150 μm and 1%, respectively. However, phosphate?solubilizing capacity of the mixed bacteria varied with the two different mineral compositions under the same condition. The correlation analyses show a significant positive correlation between biomass and phosphate content, while a negative correlation between pH and phosphate content.
