1. Bioenergy and Wastewater Treatment Laboratory, Department of Environmental Science, Babasaheb Bhimrao Ambedkar University, Lucknow (U.P.) India
2. Department of Chemistry, Manav Rachna University, Faridabad, (Haryana) India
3. Robert B. Daughtery Water for Food Institute, University of Nebraska-Lincoln, Lincoln, NE, USA
4. Institute of Environmental and Sustainable Development, Banaras Hindu University, Varanasi (U.P.) India