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Environmental Sciences
Sri Lanka
2026

D-Index & Metrics

Environmental Sciences

D-Index
63
Citations
15408
World Ranking
2460
National Ranking
3

Research.com Recognitions

  • 2026 - Research.com Environmental Sciences in Sri Lanka Leader Award
  • 2025 - Research.com Environmental Sciences in Sri Lanka Leader Award
  • 2023 - Research.com Environmental Sciences in Sri Lanka Leader Award
  • 2022 - Research.com Environmental Sciences in Sri Lanka Leader Award

Overview

Pay Drechsel is affiliated with the International Water Management Institute in Sri Lanka. Their research primarily focuses on environmental science and agricultural and biological sciences, with contributions spanning several interrelated subfields such as industrial and manufacturing engineering, water science and technology, food science, nutrition and dietetics, and plant science.

Their work addresses a wide range of topics, including:

  • Wastewater treatment and reuse
  • Child nutrition and water access
  • Food waste reduction and sustainability
  • Water-energy-food nexus studies
  • Urban agriculture and sustainability
  • Municipal solid waste management
  • Healthcare and environmental waste management

Pay Drechsel has authored several papers published in various journals, illustrating a focus on water management and sustainability. Notable recent publications include:

  • "Global and regional potential of wastewater as a water, nutrient and energy source," 2020, Natural Resources Forum
  • "Urbanisation and emerging economies: Issues and potential solutions for water and food security," 2020, The Science of The Total Environment
  • "The WHO Guidelines for Safe Wastewater Use in Agriculture: A Review of Implementation Challenges and Possible Solutions in the Global South," 2022, Water
  • "Water reuse to free up freshwater for higher-value use and increase climate resilience and water productivity," 2022, Irrigation and Drainage
  • "Perceptions of Food Waste Reduction in Sri Lanka's Commercial Capital, Colombo," 2021, Sustainability

Their frequent co-authors include:

  • Manzoor Qadir
  • Hanna Karg
  • Edmund Kyei Akoto-Danso
  • Louis Amprako
  • Andreas Buerkert

Their research has been disseminated through various publication venues, with a notable presence in:

  • Zenodo (CERN European Organization for Nuclear Research)
  • Frontiers in Sustainable Food Systems
  • Journal of Water Sanitation and Hygiene for Development
  • Natural Resources Forum
  • The Science of The Total Environment

Best Publications

  • Economics of salt-induced land degradation and restoration

    Manzoor Qadir;Emmanuelle Quillérou;Vinay Nangia;Ghulam Murtaza

  • The challenges of wastewater irrigation in developing countries

    Manzoor Qadir;Manzoor Qadir;Dennis Wichelns;Liqa Raschid-Sally;Peter G. McCornick;Peter G. McCornick

  • Total Value of Phosphorus Recovery

    Brooke K. Mayer;Lawrence A. Baker;Treavor H. Boyer;Pay Drechsel

  • Farmer perceptions and pesticide use practices in vegetable production in Ghana.

    William J Ntow;Huub J Gijzen;Peter Kelderman;Pay Drechsel

  • Global and regional potential of wastewater as a water, nutrient and energy source

    Manzoor Qadir;Pay Drechsel;Blanca Jiménez Cisneros;Younggy Kim

  • Pesticide and pathogen contamination of vegetables in Ghana's urban markets.

    Philip Amoah;Pay Drechsel;R.C. Abaidoo;W.J. Ntow

  • Population density, soil nutrient depletion, and economic growth in sub-Saharan Africa

    Pay Drechsel;Lucy Gyiele;Dagmar Kunze;Olufunke Cofie

  • Global assessment of urban and peri-urban agriculture: irrigated and rainfed croplands

    A.L. Thebo;Pay Drechsel;E.F. Lambin;E.F. Lambin

  • Irrigated urban vegetable production in Ghana: characteristics, benefits and risks.

    Emmanuel Obuobie;Bernard N. Keraita;George K. Danso;Philip Amoah

  • Wastewater irrigation and health: assessing and mitigating risk in low-income countries

    Christopher A. Scott;Pay Drechsel;Liqa Raschid-Sally;Akissa Bahri

  • Informal irrigation in urban West Africa: An overview

    Pay Drechsel;S. Graefe;M. Sonou;Olufunke Cofie

  • Irrigated urban vegetable production in Ghana: microbiological contamination in farms and markets and associated consumer risk groups.

    P. Amoah;P. Drechsel;M. Henseler;R. C. Abaidoo

  • Does irrigated urban agriculture influence the transmission of malaria in the city of Kumasi, Ghana?

    Yaw Asare Afrane;Eveline Klinkenberg;Pay Drechsel;Kofi Owusu-Daaku

  • Urbanisation and emerging economies: Issues and potential solutions for water and food security.

    Rai S. Kookana;Rai S. Kookana;Pay Drechsel;Priyanka Jamwal;Joanne Vanderzalm

  • A global, spatially-explicit assessment of irrigated croplands influenced by urban wastewater flows

    Anne Louise Thebo;Pay Drechsel;Eric Lambin;Eric Lambin;Kara Nelson

  • Dynamics and sustainability of urban agriculture: examples from sub-Saharan Africa

    Pay Drechsel;Stefan Dongus;Stefan Dongus

  • Irrigated urban vegetable production in Ghana : Sources of pathogen contamination and health risk elimination

    Philip Amoah;Pay Drechsel;R.C. Abaidoo

  • Heavy metal accumulation and health risk assessment in wastewater-irrigated urban vegetable farming sites of Addis Ababa, Ethiopia

    Desta Woldetsadik;Pay Drechsel;Bernard Keraita;Fisseha Itanna

  • Foliar nutrient levels of broad-leaved tropical trees: A tabular review

    Pay Drechsel;Wolfgang Zech

  • Managing water and fertilizer for sustainable agricultural intensification

    Pay Drechsel;P. Heffer;H. Magen;R. Mikkelsen

  • The use of human waste for peri-urban agriculture in Northern Ghana

    Olufunke O. Cofie;Gordana Kranjac-Berisavljevic;Pay Drechsel

  • Influence of Urban Wastewater on Stream Water Quality and Agriculture in and Around Kumasi, Ghana

    Bernard Keraita;Pay Drechsel;Philip Amoah

Frequent Co-Authors

Manzoor Qadir
Manzoor Qadir McMaster University
Robert C. Abaidoo
Robert C. Abaidoo Kwame Nkrumah University of Science and Technology
Flemming Konradsen
Flemming Konradsen University of Copenhagen
Christopher A. Scott
Christopher A. Scott University of Arizona
Wolfgang Zech
Wolfgang Zech University of Bayreuth
Duncan Mara
Duncan Mara University of Leeds
Andreas Buerkert
Andreas Buerkert University of Kassel
Bernd Marschner
Bernd Marschner Ruhr University Bochum
Huub J. Gijzen
Huub J. Gijzen IHE Delft Institute for Water Education
Jeffrey T. LeJeune
Jeffrey T. LeJeune The Ohio State University

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