Kwabena Biritwum Nyarko
Kwame Nkrumah University of Science and Technology
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Publication
Featured researches published by Kwabena Biritwum Nyarko.
International Journal of Water | 2016
Kwabena Biritwum Nyarko; Sampson Oduro-Kwarteng; Bismark Dwumfour-Asare; Kwaku Opoku Boakye
Urban water coverage in Ghana has been increasing but urban water supply to the poor is a challenge. This paper examines the incentive mechanisms in use in the urban water sector to serve the poor. The paper is based on reviews of incentive mechanisms (policy, strategies and practices), assessment of the level of implementation of pro-poor strategies and water supply situation in selected poor communities in the second largest city, Kumasi. The paper discusses the incentive mechanisms and the level of effectiveness and emphasises the role of the regulator. The study revealed that the policy framework for water service delivery to the urban poor exists but not all the intentions have been implemented. The urban utility is setting up a pro-poor unit and piloting innovative technical and management approaches for delivering services to the urban poor. The sector lacks sufficient incentive mechanisms to accelerate water service delivery to the urban poor.
Water Science and Technology | 2017
Bismark Dwumfour-Asare; Philomina Adantey; Kwabena Biritwum Nyarko; Eugene Appiah-Effah
Greywater management in Ghana receives little or no attention although untreated greywater is associated with environmental and public health risks. This paper assesses greywater characteristics and handling practices among urban households in three selected communities in Kumasi, the second largest city of Ghana. The study involved in-depth surveys (interviews and observations) with 90 households, and collection of 18 greywater samples from nine greywater sources for laboratory analysis. Average greywater generation is 43.36 ± 17 litres per capita per day, equivalent to 36% of average water consumption. Greywater is untreated before disposal (≈99%), and disposal is mainly (89%) into drains and onto streets. Biochemical oxygen demand (BOD) and chemical oxygen demand (COD) levels are high but give very low BOD/COD ratios (0.20 ± 0.07) indicating a very low biodegradability potential. Nutrient levels are high: 12 times (P) and 30 times (N) in excess of standard discharge limits. Other contaminants detected are heavy metals (Fe, Pb, Zn and Cd), microbes (total coliforms, Escherichia coli and Salmonella spp.), and organic micropollutants - benzalkonium chloride, parabens (methyl and propyl), sodium benzoate and hypochlorite - and details of the levels are discussed in the paper. Greywater reuse could be useful for biomass production, but it also presents a challenge and threat to natural biological processes and water sources.
Heliyon | 2018
F. Owusu-Nimo; J. Mantey; Kwabena Biritwum Nyarko; Eugene Appiah-Effah; A. Aubynn
Recently, there have been efforts by stakeholders to monitor illegal mining (galamsey) activities, foster their formalization and reclaim the many abandoned wastelands in Ghana. However, limited information exists on the locations, abundance, scope and scale of galamsey types, which hinders the development of effective policy response. This study attempts to map and analyze the distribution patterns, abundance, activity statuses and the extents of nine (9) galamsey types within eleven (11) Municipal and District Assemblies (MDAs) of Ghanas Western Region. It explores the utility of field-based survey, using the Open Data Kit (ODK) system, ArcGIS and Google Earth Imagery to map and visualize different galamsey types under a hostile working environment. A total of 911 galamsey sightings, of which 547 were found in clusters (corresponding to approximately 7106 individual operational units) and 364 in stand-alone mode. Overall, a total of 7470 individual galamsey operations were encountered in 312 different communities (towns and villages). Operationally, the Alluvial Washing Board, Mill-House and Chamfi were found to be the three most popular and practiced galamsey types. The three main galamsey hotspot districts (out of the 11) are the Tarkwa Nsuaem (294 sightings and 3648 individual galamsey sites), Amenfi East (223 sightings and 1397 individual galamsey sites) and Prestea Huni-Valley Districts (156 sightings and 1130 individual galamsey sites). In terms of their activity statuses, 199 abandoned operations (entailing 1855 individual operations), 664 active (entailing 5055 individuals operations) and 48 semi-active (comprising 560 individuals within clusters) galamsey operations were sighted at the time of the study. While galamsey is generally acknowledged to be widespread in Ghana, the results suggest a scale that probably surpasses any previous estimate or expectation. The findings will adequately inform the prioritization of reclamation efforts.
Heliyon | 2018
Paa Kwesi Woode; Bismark Dwumfour-Asare; Kwabena Biritwum Nyarko; Eugene Appiah-Effah
Knowledge of cost and effectiveness of Ghanas main hygiene promotion intervention (HPI), Community-Led Total Sanitation (CLTS), is critical for policy direction. Cost and resultant effect of HPI is examined using a case study of four communities. Surveys were conducted with 300 households, CLTS implementers and relevant agencies during the study period (May 2012 to February 2014). The HPI produced marginal but statistically significant effect (8%, p < 0.001). Improvement in hygiene behaviour was statistically associated with both government investments (p < 0.001) and household investments (p < 0.001). Actual HPI cost is US
Compost Science & Utilization | 2015
Eugene Appiah-Effah; Kwabena Biritwum Nyarko; Leticia Adum; Eric Ofosu Antwi; Esi Awuah
90 per household: US
Journal of Water Sanitation and Hygiene for Development | 2014
Eugene Appiah-Effah; Kwabena Biritwum Nyarko; Samuel Fosu Gyasi; Esi Awuah
51 and 39 from government and households respectively. Cost-effectiveness of the HPI is US
Water Practice & Technology | 2015
Eugene Appiah-Effah; Kwabena Biritwum Nyarko; Eric Ofosu Antwi; Esi Awuah
106.42 per capita of improved hygiene behaviour.
Water, sanitation and hygiene: sustainable development and multisectoral approaches. Proceedings of the 34th WEDC International Conference, United Nations Conference Centre, Addis Ababa, Ethiopia, 18-22 May 2009. | 2009
Sampson Oduro-Kwarteng; Esi Awuah; Kwabena Biritwum Nyarko
Water Practice & Technology | 2018
Eugene Appiah-Effah; Kwabena Biritwum Nyarko; Esi Awuah; Eric Ofosu Antwi
Water Air and Soil Pollution | 2018
Albert Ebo Duncan; Nanne K. de Vries; Kwabena Biritwum Nyarko