EXTRACTION OF METAL OXIDES FROM COAL FLY ASH BY MICROORGANISMS AND A NEW MICROORGANISM USEFUL THEREFOR

摘要

Metal oxides are extracted from coal fly ash by abio-leading process. The ash is suspended in an aqueoussaline solution having a pH within the range of from 5 to 8and the suspension is incubated with a microorganism straincapable of growing in aqueous saline solution and binding tometal oxide, and the resulting agglomerates are separated.A new gram-positive bacterial strain designatedGIN-1 and being a member of the genus Rhodococcus isdescribed. It has been deposited under No. 40340 at theNational Collections of Industrial and Marine Bacterial Ltd.(NCIMB) at Aberdeen, Scotland.GIN-1 is particularly suitable for the biotechingof metal oxides from coal fly ash.