Application of bioremediation: the use of living organisms to degrade environmental pollutants or treat waste streams to control pollution-is expanding world over. The Organisation for Economic Cooperation and Development) in a report entitled Biotechnology for a clean Environment. Research projects are being modified to expand the range of microorganisms used for bio-remediation.
Removal of toxic chemicals from industrial wastwater: New waste treatment system can also maintain populations of desired specific microorganisms that can biodegrade toxic compounds like hydrocarbons and chlorinated solvents found in industrial plant waste water.
Phytoremediation: The ability or microorganisms to uptake and accumulate heavy metals such as Co,Zn, Mn, Cu, Pb, Ni, Hg, Ag, etc. is very well known.