Some metals removal by biomass of bacillus spp. and pseudomonas spp. from wastewater of second campus of Mosul University

الملخص EN

This paper highlighted a study on the use of bacteria as biological material for heavy metals removal from wastewater, using biomass of Bacillus spp.

and Pseudomonas spp.

In two time intervals (4, 24 hrs.) of biosorption process.

The maximum capacity was found to be the highest for zinc by the two types of bacteria and two time intervals.

While the minimum capacity was found for lead by pseudomonas spp.

The other metals have differed in the percentage uptake by two types of bacteria and two time intervals.

The study has found that there is an increase in uptake after 24 hrs.

Of biosorption process except the lead which its percentage of uptake has decreased after 24 hrs.

By Bacillus spp.

while the percentage of zinc for two types of bacteria has remained constant after 24 hrs.

Of biosorption.

As well as the research has studied the effect of addition of glucose on biosorption as an additional carbon and energy source and the results revealed that there is variation in bacterial ability for metal adsorption within the two intervals 4 and 24 hrs.