INDIRECT BIOLEACHING OF COVELLITE BY THIOBACILLUS THIOOXIDANS WITH AN OXIDANT AGENT

被引：22

作者：

CURUTCHET, G

POGLIANI, C

DONATI, E

机构：

[1] CTR TECNOL MINERALES & CERAM, RA-1897 GONNET, ARGENTINA

[2] NATL UNIV LA PLATA, FAC CIENCIAS EXACTAS, DEPT QUIM, CTR INVEST FERMENTAC IND, RA-1900 LA PLATA, ARGENTINA

来源：

BIOTECHNOLOGY LETTERS | 1995年 / 17卷 / 11期

关键词：

D O I：

10.1007/BF00128396

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

High copper extraction by the action of Thiobacillus thiooxidans (T.t.) on covellite in presence of iron(III) is explained by indirect mechanism, in which T.t. only oxidizes the layer of sulphur that covers the sulphide surface allowing sulphide oxidation by iron(III). In cultures on elemental sulphur with iron(III) T.t. is not able to use iron(III) as an acceptor of electrons in sulphur oxidation; iron(III) only oxidizes those intermediates which were generated in the aerobic oxidation of sulphur.

引用

页码：1251 / 1256

页数：6