TITLE:
Microbial Recovery of Gold from Mahd El-Dahab Mine Kingdom of Saudi Arabia
AUTHORS:
Nora Shenouda Gad, Mahmoud H. Shalaby
KEYWORDS:
Recovery, Saccharomyces cerevisiea, Gold
JOURNAL NAME:
Open Access Library Journal,
Vol.2 No.6,
June
25,
2015
ABSTRACT:
This paper considers the use of the yeast Saccharomyces cerevisiae as a biosorbent for the recovery of gold
from Mahd El-Dahhab gold mine in Kingdom of Saudi Arabia. Gold is a noble metal
which was seldom used in electroplating, hydrogenation catalyst, etc.
Heterogeneous composition of samples and low concentration offer renewed
interest in the selective extraction of gold using various extractants. In the
present work, Saccharomyces cerevisiae,
is used to study the preconcentration of gold, which in the original sample was
0.44 ppm, while after treatment with Saccharomyces
cerevisiae it raises to 7 ppm with efficiency reaching about 1600%.