1. Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, ATC Building, University of Newcastle, Callaghan, New South Wales 2308, Australia
2. Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), University of Newcastle, ATC Building, Callaghan, New South Wales 2308 Australia
3. Formerly Department of Microbiology, Sri Krishnadevaraya University, Anantapur 515003, India