scholarly journals An overview of the state of water supply and sanitation in Sub-Saharan Africa: The Nigerian situation

2006 ◽  
Vol 5 (1) ◽  
Author(s):  
ME Eja ◽  
GE Arikpo ◽  
PA Akpan
Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2169
Author(s):  
Pauline Macharia ◽  
Nzula Kitaka ◽  
Paul Yillia ◽  
Norbert Kreuzinger

This study examined the current state of water demand and associated energy input for water supply against a projected increase in water demand in sub-Saharan Africa. Three plausible scenarios, namely, Current State Extends (CSE), Current State Improves (CSI) and Current State Deteriorates (CSD) were developed and applied using nine quantifiable indicators for water demand projections and the associated impact on energy input for water supply for five Water Service Providers (WSPs) in Kenya to demonstrate the feasibility of the approach based on real data in sub-Saharan Africa. Currently, the daily per capita water-use in the service area of four of the five WSPs was below minimum daily requirement of 50 L/p/d. Further, non-revenue water losses were up to three times higher than the regulated benchmark (range 26–63%). Calculations showed a leakage reduction potential of up to 70% and energy savings of up to 12 MWh/a. The projected water demand is expected to increase by at least twelve times the current demand to achieve universal coverage and an average daily per capita consumption of 120 L/p/d for the urban population by 2030. Consequently, the energy input could increase almost twelve-folds with the CSI scenario or up to fifty-folds with the CSE scenario for WSPs where desalination or additional groundwater abstraction is proposed. The approach used can be applied for other WSPs which are experiencing a similar evolution of their water supply and demand drivers in sub-Saharan Africa. WSPs in the sub-region should explore aggressive strategies to jointly address persistent water losses and associated energy input. This would reduce the current water supply-demand gap and minimize the energy input that will be associated with exploring additional water sources that are typically energy intensive.


1994 ◽  
Vol 23 (3) ◽  
pp. 197-205 ◽  
Author(s):  
Felix Izu Nweke

Cassava makes an important contribution to improving food security and rural incomes in sub-Saharan Africa, as it is tolerant of drought and poor soil and its cultivation does not require much labour. However, the fresh roots are bulky and perishable and need to be processed before they can be marketed; processing also removes the cyanogens which make many varieties poisonous in their raw form. Cassava roots are turned into granules, flours, pastes and chips, with a wide range of flavours and appearances for different areas and markets. Many different processing techniques are used, some of which make intensive use of fuelwood while others require a plentiful water supply. These requirements, as well as the need for a good transport and marketing infrastructure, limit the expansion of cassava production in sub-Saharan Africa, but technical solutions are being found.


2018 ◽  
Author(s):  
Kenrad E Nelson ◽  
Brittany L Kmush

Hepatitis E Virus (HEV) infections are among the most frequent causes of viral hepatitis globally. They are especially common in southern Asia where large epidemics of waterborne hepatitis, primarily affect adults with increased mortality in pregnant women, occur frequently during and after monsoon rains when there is contamination of the drinking water supply. These epidemics have been recognized throughout modern history. Similar epidemics have been reported from Sub-Saharan Africa during humanitarian crises, when the water supply is compromised. The causal virus, HEV, was discovered in 1983. About a decade later, similar HEV viruses were found to be transmitted as a foodborne infection from infected pigs, deer, wild boar, and other zoonotic reservoirs. There are 4 genotypes of HEV that infect humans: genotypes 1 and 2 are strictly human pathogens, and genotypes 3 and 4 have zoonotic reservoirs and are transmitted as a foodborne infection or from contact with the zoonotic reservoir. Although most HEV infections cause asymptomatic infections or acute selflimited hepatitis in humans, in recent years, chronic infections among immunocompromised patients after solid organ transplants or other immunocompromising conditions have been reported among persons with genotype 3 infections. This review contains 4 figues, 4 tables and 162 references Key Words: epidemiology, global impact, Hepatitis E Vaccine, HEV, prevention, reservoirs, risk factors, treatment


2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Carol A. Tilt ◽  
Wei Qian ◽  
Sanjaya Kuruppu ◽  
Dinithi Dissanayake

Purpose Developing countries experience their own social, political and environmental issues, but surprisingly limited papers have examined sustainability reporting in these regions, notably in sub-Saharan Africa. To fill this gap and understand the state of sustainability reporting in sub-Saharan Africa, this paper aims to investigate the current state of reporting, identifies the major motivations and barriers for reporting and suggests an agenda of future issues that need to be considered by firms, policymakers and academics. Design/methodology/approach This paper includes analysis of reporting practices in 48 sub-Saharan African countries using the lens of New Institutional Economics. It comprises three phases of data collection and analysis: presentation of overall reporting data collected and provided by Global Reporting Initiative (GRI). analysis of stand-alone sustainability reports using qualitative data analysis and interviews with key report producers. Findings The analysis identifies key issues that companies in selected sub-Saharan African countries are grappling within their contexts. There are significant barriers to reporting but institutional mechanisms, such as voluntary reporting frameworks, provide an important bridge between embedding informal norms and changes to regulatory requirements. These are important for the development of better governance and accountability mechanisms. Research limitations/implications Findings have important implications for policymakers and institutions such as GRI in terms of regulation, outreach and localised training. More broadly, global bodies such as GRI and IIRC in a developing country context may require more local knowledge and support. Limitations include limited data availability, particularly for interviews, which means that these results are preliminary and provide a basis for further work. Practical implications The findings of this paper contribute to the knowledge of sustainability reporting in this region, and provide some policy implications for firms, governments and regulators. Originality/value This paper is one of only a handful looking at the emerging phenomenon of sustainability reporting in sub-Saharan African countries.


2018 ◽  
Vol 56 (2) ◽  
pp. 203-219 ◽  
Author(s):  
Katariina Mustasilta

The continued influence of traditional governance in sub-Saharan Africa has sparked increasing attention among scholars exploring the role of non-state and quasi-state forms of governance in the modern state. However, little attention has been given to cross-country and over-time variation in the interaction between state and traditional governance structures, particularly in regard to its implications for intrastate peace. This study examines the conditions under which traditional governance contributes to state capacity to maintain peace. The article argues that the type of institutional interaction between the state and traditional authority structures influences a country’s overall governance dynamics and its capacity to maintain peace. By combining new data on state–traditional authorities’ interaction in sub-Saharan Africa from 1989 to 2012 with intrastate armed conflict data, I conduct a systematic comparative analysis of whether concordant state–traditional authorities’ interaction strengthens peace. The empirical results support the argument that integrating traditional authorities into the public administration lowers the risk of armed conflict in comparison to when they remain unrecognized by the state. Moreover, the analysis suggests that the added value of this type of interaction is conditional on the colonial history of a country.


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