1. Postdoctoral Researcher, Laboratory of Environment Pollution and Bioremediation, Xinjiang Institute of Ecology and Geography, Urumqi, China 830011.
2. Director and Professor, Dept. of Civil Engineering, Thapar Univ., Patiala 147004, Punjab, India.
3. Professor, Dept. of Biotechnology, Thapar Univ., Patiala 147004, Punjab, India (corresponding author).