The Hong Kong University of Science and Technology

Rensselaer Polytechnic Institute

Professor, School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India

Department of Environmental Sciences, Government College University, Faisalabad …

Professor of Environmental Science, Foshan University

Associate Professor; Government College University Faisalabad, Pakistan

Professor of Water Treatment, Lappeenranta University of Technology

Professor, Department of Geological Sciences, University of Florida

James cook university

University of Toronto, Institute of Forestry and Conservation, Daniels Faculty