Prof. Kwabena Biritwum Nyarko

Professor

Dept: Civil Engineering
RWESCK Building
College of Engineering
KNUST
Kumasi
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Research Areas/Interests

1. Sustainable Water Supply Systems – Design, optimisation, and management of resilient water supply infrastructure in developing and urban...~more

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Publications

    Visit this link for the complete list of my publications: https://scholar.google.com/citations?user=2yICnWMAAAAJ&hl=en

    Selected Publication

    Papers in Journals

    1. Gyapong-Korsah, B., Duku, G. A., Appiah-Effah, E., Kunkuaboor, Y. C., Boakye, P., Akodwaa-Boadi, K. & Nyarko, K. B. (2026). Greywater quantities and qualities in low-income Kumasi, Ghana: Implications for sustainable water management. PLOS Water 5, e0000398. https://doi.org/10.1371/journal.pwat.0000398
    2. Duku, G. A., Bonso,N. K., Appiah-Effah , E., Kunkuaboor, Y. C.,  Gyapong-Korsah, B., Acquah, E. & Nyarko, K. B. (2025). Achieving universal sanitation in Ghana: An analysis of key drivers of toilet ownership among property owners in Urban areas. PLoS ONE 20(1), e0307729. https://doi.org/10.1371/journal.pone.0307729
    3. Dwumfour-Asare, B., Appiah-Effah, E., Nyarko, K. B. & Tidwell, J. Ben (2025). Nurturing care group approach for improving animal faeces management in Ghana. Scientific Reports 15, 34358. https://doi.org/10.1038/s41598-025-16961-y
    4. Cheung, H. H., Adriano, Z., Dwumfour-Asare, B., Nyarko, K. B., Scott, P., Nala, R., Brown, J., Cumming, O. & Ross, I. (2025) Validity of a visual analogue scale to measure and value the perceived level of sanitation: evidence from Ghana and Mozambique, Health Policy and Planning, 40(1), 42-51, https://doi.org/10.1093/heapol/czae092
    5. Appiah-Effah, E., Boakye, K., Salihu, T., Duku, G.A., Fenteng, J. O. D., Boateng, G., Appiah, F. & Nyarko, K. B. (2024). Determinants of Open Defecation Among Rural Women in Ghana: Analysis of Demographic and Health Surveys. Environmental Health Insights, 18. https://doi.org/10.1177/11786302241226774
    6. Appiah-Effah, E., Duku, G. A., Boakye, K., Oduro, C. & Nyarko, K. B. (2024). Navigating Taxpayers Attitude: Exploring Support for Urban Sanitation Surcharge in Kumasi. Environmental Health Insights, 18. https://doi.org/10.1177/11786302241247797
    7. Cronk, R., Brocklehurst, C., Evans, B., Gomez Rodriguez, L., Lantagne, D., Mcbroom-Fitterer, C., Momanyi, E., Nyarko, K. & Scharp, C. (2024). Missing in action: The UN Water Action Agenda needs an overhauled commitment-setting process. PLOS Water, 3, e0000251. https://doi.org/10.1371/journal.pwat.0000251
    8. Duku, G. A., Appiah-Effah, E., Gyamfi, C., & Nyarko, K. B. (2024). Ghana’s water safety journey: A review of efforts toward a risked-based water quality management. Journal of Water & Health 22, 2370–2384 https://doi.org/10.2166/wh.2024.371
    9. Gyapong-Korsah, B., Duku, G. A., Appiah-Effah, E., Boakye, K., Dwumfour-Asare, B., Essandoh, H. M. K. & Nyarko, K. B. (2023). Greywater generation and reuse among residents of low-income urban settlements in the Oforikrom Municipal Assembly, Ghana. Journal of Water, Sanitation and Hygiene for Development, 13, 551–565. https://doi.org/10.2166/washdev.2023.009
    10. Erzuah, S., Aggrey, W. N., Tetteh, J. T., Bodi, V., Adenutsi, C.D., Sokama-Neuyam, Y. A., Sarkodie, K., Ampomah, W., Ohemeng-Boahen, G. & Nyarko, K. B. (2023). Zeta potential prediction of dominant sandstone minerals via surface complexation modelling. Scientific African, 20, e01721. https://doi.org/10.1016/j.sciaf.2023.e01721
    11. Mensah-Akutteh, H., Buamah, R., Wiafe, S. & Nyarko, K. B. (2022a). Raw water quality variations and its effect on the water treatment processes. Cogent Engineering, 9. https://doi.org/10.1080/23311916.2022.2122152
    12. Mensah-Akuteh, H., Bauman, R., Wiafe, S., & Nyarko, K. (2022b) Optimising coagulation-flocculation processes with aluminium coagulation using response surface methods. Journal of Applied Water Science 12(8), 1-13.
    13. Tidwell, J. B., Nyarko, K. B., Ross, I., Dwumfour-Asare, B. & Scott, P. (2022). Evaluation of user experiences for the clean team Ghana container-based sanitation service in Kumasi, Ghana. Journal of Water, Sanitation and Hygiene for Development, 12(3), 336-346.
    14. Kumasi, T.C., Nyarko, K.B. & Antwi-Agyei, P. (2022). Universal water service delivery: Insights on what it takes from Ghana. World Water Policy, 8(1), 9-30. https://doi.org/10.1002/wwp2.12072
    15. Appiah-Effah, E., Ahenkorah, E. N., Duku, G. A. & Nyarko, K. B. (2021). Domestic drinking water management: Quality assessment in Oforikrom municipality, Ghana. Science Progress, 104(3), 00368504211035997.
    16. Oduro, C. Y., Appiah-Effah, E., & Nyarko, K. B. (2021). Assessing policymaker and taxpayer attitudes towards public finance for urban sanitation: the case of sanitation surcharges in two Ghanaian municipalities. International Journal of Urban Sustainable Development, 13(1), 83-96.
    17. Appiah–Effah, E., Duku, G. A., Dwumfour–Asare, B., Manu, I. & Nyarko, K.B. (2020). Toilet chemical additives and their effect on faecal sludge characteristics. Heliyon, 6(9), e04998.
    18. Duku, G. A., Appiah-Effah, E., Nyarko, K. B., & Dwumfour-Asare, B. (2020). Early live-prototype testing of a low-cost latrine technology for rural and peri-urban communities: The case of a modified pour-flush latrine. Scientific African, 8, e00338.
    19. Dwumfour-Asare, B., Nyarko, K.B., Essandoh, H. M. & Awuah, E. (2020). Domestic greywater flows and pollutant loads: A neighbourhood study within a university campus in Ghana. Scientific African, 9, e00489.
    20. Duncan, A. E., de Vries, N., & Nyarko, K. B. (2020). An intervention to address deteriorating water quality: An application of Ajzen’s theory of planned behaviour. Current Psychology, 1-9.

    Published Book Chapters

    1. Fonseca, C., Nyarko, K., Uandela, A. & Guy Norman (2014) Sustainable Financing. In Sanitation and Hygiene in Africa: Where do We Stand? Cross, P and Coombes, Y (Edited) IWA Publishing. London 159-164.
    2. Nyarko, K. B. & Odai, S. N. (2008). Regulating Public Providers for the Poor: Case Study of Accra and Kumasi, Ghana. In Regulating Water and Sanitation for Poor. Economic Regulation for Public and Private Partnerships. Frances, R and Gerlach E (Edited). Earthscan, Duncan House, London. 95-105.

    Policy Briefing Notes

    1. Appiah-E?ah E., Nyarko K.B., Dwumfour-Asare B. & Moriarty P. (2012). Life-cycle costs in Ghana: Briefing Note 10, Case Study of Oyibi multi-village water schemes. Life-cycle costs approach for WASH services that last. IRC International Water and Sanitation Centre, the Netherlands. December 2012 Edition.
    2. Dwumfour-Asare B., Nyarko K.B., Nkrumah E., Appiah-Effah E., & Moriarty P. (2012). Life-cycle costs in Ghana: Briefing Note 12, Ideal direct support costs for WASH services. Life-cycle costs approach for WASH services that last. IRC International Water and Sanitation Centre, the Netherlands. December 2012 Edition.
    3. Dwumfour-Asare B., Nyarko K.B.,, Appiah-Effah E., & Moriarty P. (2012). Life-cycle costs in Ghana: Briefing Nkrumah Note 11, Cost drivers of capital investment of small towns water schemes. Life-cycle costs approach for WASH services that last. IRC International Water and Sanitation Centre, the Netherlands. October 2012 Edition.
    4. Nyarko K.B., Asante J., Dwumfour-Asare B., & Moriarty P. (2012). Life-cycle costs in Ghana: Briefing Note 9, Cost of small towns water supply schemes in central region, Ghana. Life-cycle costs approach for WASH services that last. IRC International Water and Sanitation Centre, the Netherlands. December 2012 Edition.
    5. Dwumfour-Asare B., Nyarko K. B., Moriarty P., Obuobisa-Darko A. & Appiah-Effah E. (2012). Life-cycle costs in Ghana: Briefing Note 7, Poverty and access to rural water services. Life-cycle costs approach for WASH services that last. IRC International Water and Sanitation Centre, the Netherlands. August 2012
    6. Moriarty P., Nyarko K. B., Dwumfour-Asare B., Obuobisa-Darko, A. & Appiah-Effah E. (2012). Life-cycle costs in Ghana: Briefing Note 8, Uses and sources of water. Life-cycle costs approach for WASH services that last. IRC International Water and Sanitation Centre, the Netherlands. August 2012 Edition.
    7. Dwumfour-Asare B., Nyarko K. B., Moriarty P., Obuobisa-Darko A. & Appiah-Effah E. (2012). Life-cycle costs in Ghana: Briefing Note 5, access to sanitation services. Life-cycle costs approach for WASH services that last. IRC International Water and Sanitation Centre, the Netherlands. August 2012 Edition.
    8. Nyarko K. B., Dwumfour-Asare B., Moriarty P., Appiah-Effah E. & A. Obuobisa-Darko (2012). Life-cycle costs in Ghana: Briefing Note 6, Functionality of rural water systems. Life-cycle costs approach for WASH services that last. IRC International Water and Sanitation Centre, the Netherlands. August 2012 Edition.
    9. Moriarty, P., Nyarko, K.B., Dwumfour-Asare, B., Appiah-Effah, E., & Obuobisa-Darko, A. (2011). Life-cycle costs in Ghana: Briefing Note 1, Background and methodology. Life-cycle costs approach for WASH services that last. IRC International Water and Sanitation Centre, the Netherlands. August 2011 Edition.
    10. Moriarty, P., Nyarko, K.B., Dwumfour-Asare, B., Appiah-Effah, E., & Obuobisa-Darko, A. (2011). Life-cycle costs in Ghana: Briefing Note 4, access to water services in rural areas and small towns. Life-cycle costs approach for WASH services that last. IRC International Water and Sanitation Centre, the Netherlands. August 2011 Edition.
    11. Nyarko, K.B., Dwumfour-Asare, B., Appiah-Effah, E., Moriarty, P., & Obuobisa-Darko, A. (2011). Life-cycle costs in Ghana: Briefing Note 2, Post-construction costs of water point systems. Life-cycle costs approach for WASH services that last. IRC International Water and Sanitation Centre, the Netherlands. August 2011 Edition.
    12. Nyarko, K.B., Dwumfour-Asare, B., Appiah-Effah, E., Moriarty, P., & Obuobisa-Darko, A. (2011). Life-cycle costs in Ghana: Briefing Note 3, Cost of rural and small town sanitation services. Life-cycle costs approach for WASH services that last. IRC International Water and Sanitation Centre, the Netherlands. August 2011 Edition.

    Technical Reports and WASH Sector Documents

    1. Appiah-Effah, E., Nyarko, K. B., Duku, G. A., Azangbego, N. Y. & Aggrey, R. A. (2019a). Minimum Standards and Technical Guidelines for Household Latrines. UNICEF-Ghana.
    2. Appiah-Effah, E., Nyarko, K. B., Duku, G. A, Azangbego, N. Y. & Aggrey, R. A (2019b). Faecal Sludge Treatment Option for Metropolitan, Municipal and District Assemblies (MMDAs). UNICEF-Ghana.
    3. Appiah-Effah, E., Nyarko, K. B., Duku, G. A, Azangbego, N. Y.& Aggrey, R. A. (2019c). Latrine Technology Option Selection Guide. UNICEF-Ghana.
    4. Appiah-Effah, E., Nyarko, K. B., Duku, G. A, Azangbego, N. Y. & Aggrey, R. A. (2019d). Faecal Sludge Planning Guide for Metropolitan/Municipal/District Assemblies (MMDAs). UNICEF-Ghana.
    5. Appiah-Effah, E., Nyarko, K. B., Duku, G. A, Azangbego, N. Y. & Aggrey, R. A. (2019e).  District Sanitation Spatial Planning Tool. UNICEF-Ghana.
    6. Appiah-Effah, E., Nyarko, K. B., Duku, G. A, Azangbego, N. Y. & Ransford Aduafo Aggrey (2019f). Toilet Assessment Tool. UNICEF-Ghana.
    7. Nyarko, K. B., Oduro, C. Y. & Appiah-Effah, E. (2019). Research around Sanitation Surcharges included in Property Rates in Ghana. Water and Sanitation for the Urban Poor (WSUP), UK.
    8. Nyarko, K. B., Appiah-Effah, E., Duku, G. A, Azangbego, N. Y. & Aggrey, R. A. (2018). Post–Intervention Endline Assessment of GWCL Network Extension in Adukrom, Akorem and Abuakwa in the Ashanti Region of Ghana. Water and Sanitation for the Urban Poor (WSUP), Ghana
    9. Nyarko, K. B. & Appiah-Effah, E. (2016). Strengthening Management Capacities of Environmental Health and Sanitation and Waste Management Departments in the Kumasi Metropolitan Assembly, Ghana. Water and Sanitation for the Urban Poor (WSUP), Ghana.
    10. Nyarko, K. B., Appiah-Effah, E. & Afful, A. M. (2016). Latrine Artisan Manual. UNICEF-Ghana.
    11. Nyarko K. B., Buamah, R., Appiah-Effah, E., Nunoo, F., Afful, K. M., Samwini, N. A., Owusu-Boakye, A. (2016a). Latrine Technology Manual. UNICEF-Ghana.
    12. Nyarko, K. B., Richard Buamah, Appiah-Effah, E., Nunoo F., Afful, K. M., Samwini, N. A. (2016b). Household Latrine Selection Guide. UNICEF-Ghana.
    13. Nyarko, K. B.,, Richard Buamah, Appiah-Effah, E., Nunoo F., Afful, K. M & Samwini, N. A. (2016c). Assessment and Development of Sanitation Technology Options Manual for Urban And Peri-Urban Areas. UNICEF-Ghana.
    14. Burr, P., Nyarko, K. B., Dwumfour-Asare, B & Fonseca, C. (2014). WASHCost Sierra Leone Research Project: Research Report. Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana & International Water and Sanitation Centre (IRC), the Netherlands, The Hague.
    15. Nyarko, K. B., Fonseca, C. & Dwumfour-Asare, B. (2013). WASHCost Sierra Leone Research Project: Inception report. Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana & International Water and Sanitation Centre (IRC), the Netherlands, The Hague.
    16. Fonseca, C., Stef. S., Nyarko, K., Naafs, A & Francey, F (2013) Covering the costs of capital maintenance of rural water supply systems: current practices and future options. WASHCost/Triple S Working Paper No 9, IRC International Water and Sanitation Centre, The Netherlands, The Hague.

     

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