Biological treatment of heavy metals removal from Sewage

Abstract

A sample of the bread yeast Saccharomyces cerevisiae strain was taken from the local markets in the city of Mosul and grown on the appropriate medium for it in order to test its ability to remove some heavy metals. Concentrations for each metal ph and three temperatures The grown bread yeast was able to remove both zinc and lead alone and remove them both. The highest removal of zinc was 1.99 ppm , and lead was 0.5 ppm. It was noted that the removal rate increased according to the two minerals together, as the temperature was 10 and 25 The best value for pH is 4 and 9