Addressing the water-energy nexus: A focus on the barriers and potentials of harnessing wastewater treatment processes for biogas production in Sub Saharan Africa

Ijoma, Grace N.; Mutungwazi, Asheal; Mannie, Thulani; Nurmahomed, Weiz; Matambo, Tonderayi; Hildebrandt, Diane

doi:10.1016/j.heliyon.2022.e09385

Cited by 12 publications

(7 citation statements)

References 139 publications

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“…A summary of the studied articles by Ali et al [60] in Ghana, Owebor et al [61] in Nigeria, Mmereki [62] in Botswana, Ayeleru et al [12], Ijoma et al [63] and Somé [64] indicates law enforcement, political will, and funding as the major issues for WM within SSA.…”

Section: Methodsmentioning

confidence: 99%

Barriers and Challenges to Waste Management Hindering the Circular Economy in Sub-Saharan Africa

2022

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More and more, waste generated in most parts of the Western world has been recycled and transformed into new circularity products. However, managing waste within Sub-Saharan Africa (SSA), such as in Ghana, has become a challenge due to the continued practice of the old traditional linear waste economy, that is, the taking, making and disposing methods of management, representing a threat to global environmental sustainability. Despite the need to revise current linear waste management (WM) in order to turn to the circular economy (CE) model, which consists of the concept of renew, remake and share, to advance sustainable development, a number of factors restrict the CE realization in practice, specifically in developing countries. An integrative methodology was used in this article to identify some of the challenges that hinder the achievement of CE in SSA countries. The results revealed the absence of educational programs and public awareness of waste management activities. The findings also highlight the lack of political will, funding and national policies on WM as some of the most significant issues. The study contributes to further encouraging policymakers and policy implementers, entrepreneurs and relevant interested groups to commit resources to sustainable WM services aiming to advancing CE in SSA countries.

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Section: Methodsmentioning

confidence: 99%

Barriers and Challenges to Waste Management Hindering the Circular Economy in Sub-Saharan Africa

2022

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Section: Literature Reviewmentioning

confidence: 99%

“…Therefore, energy auditing in power plants and presenting an optimal pattern for developing renewable energies with the purpose of preserving fuels and decreasing carbon emission in the world have been noticed by many experts. [28][29][30][31] Moreover, many research have been conducted for analyzing optimum power plant capacity in their countries, [32][33][34][35] assessing the essential parameters for promoting electrical energy efficiency and decreasing the related costs within the industry, 36 optimizing and analyzing the economic factor, exergy, and power plants pollutants. 37 For the replacement of renewable resources in Iran's power plant industry, the thermodynamic analysis of combining solar plant with Shahid Montazeri power plant has indicated that creating an optimal combination of thermal power plant and PV system will result in a 6698 m 3 decrease in fuel consumed by the boiler and also a decrease of 90.43 tons of carbon dioxide annually.…”

Section: Literature Reviewmentioning

confidence: 99%

Numerical analysis of water, energy, and environment nexus in the hybrid thermal and solar multigeneration power plants

Zahedi,

Yousefi,

Aslani

et al. 2024

Energy Science & Engineering

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The challenge of providing water, energy, and managing the environment is widely recognized as a significant barrier to global advancement in light of the increasing population. Based on projections, it is anticipated that the global community will encounter crises pertaining to water, energy and the environment in the foreseeable future. In this research, the application of the hybrid renewable system in a thermal power plant has been assessed based on the approach of analyzing the link between energy, water, and environment. The design of the solar system and the assessment of carbon balance during the power plant lifetime have been conducted in PVsyst application in 2022. Moreover, ReCipe environmental model has been used for assessing the effect of decrease in carbon emission on the ecosystem. The findings of the research indicate that the replacement of at least 2% of the nominal capacity of the fossil fuel power plant with the renewable one, prevents the emission of 1340.37 tons of carbon dioxide yearly. This amount equals to 371.25 m3 of reserve in fossil fuel consumption and 382.64 tons of crude oil. The results also showed that in addition to preserving natural resources, the hybrid cycle design leads to significant water demand reduction which equals to 3751 m3 with the capacity to supply underground water sources. Due to the interests of preserving water and energy resources and decreasing carbon emission in power plant industry, within the framework of nexus approach, management of energy supply by replacing resources and using water and heat recovery technologies and application of energy demand management policies based on energy efficiency and environmental implications is recommended.

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“…e challenges of the development and utilization of nonsolid biomass are quite similar to the previous energy systems. Moreover, the barriers to the wider implementation of biogas as a source of energy have been comprehensively reviewed by previous studies [209][210][211][212][213][214][215]. However, some of the challenges include lack of technology and capacity building, high investment costs, and poor country's regulation, policy, and standards.…”

Section: Current State Of Utilizationmentioning

confidence: 99%

A Critical Review on the Development and Utilization of Energy Systems in Uganda

Bongomin

Nziu

2022

The Scientific World Journal

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We live in a world that is completely dependent on energy; thus, humankind can no longer live without power. With electricity being the main form of energy today, this has increased the complexity of our life today. In Uganda, electricity generation is mainly through hydropower, which puts the country in the bottleneck of overdependence on one source of energy. There are many energy systems out there that the country can use to diversify its electricity generation. Therefore, the need to understand the level of development and utilization of various energy systems has been the underlying question for this present study. A comprehensive literature survey was conducted using electronic databases, including ScienceDirect, Wiley, Sage, Scopus, Taylor & Francis, and Google Scholar. The publications in the form of reports, conference papers, working papers, discussion papers, journal articles, book sections, and textbooks were considered in this study. In total, 11 energy systems, including human and animal energy, solid biomass (firewood), hydropower, wind, geothermal, solar, nuclear, peat, coal, petroleum, and nonsolid biomass (methanol, hydrogen, ethanol, biodiesel, and biogas), are described. The current and future development and utilization of these energy systems have been described. The challenges for developing and utilizing these systems were elaborated on, and the solutions for their challenges were presented. Hydropower from the Nile River, being the main river for large hydropower plant construction, is the dominant energy system in Uganda. Nuclear energy will be the salvation for the country’s electric energy supply in the near future. Therefore, Uganda needs to bet big on nuclear energy.

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Addressing the water-energy nexus: A focus on the barriers and potentials of harnessing wastewater treatment processes for biogas production in Sub Saharan Africa

Cited by 12 publications

References 139 publications

Barriers and Challenges to Waste Management Hindering the Circular Economy in Sub-Saharan Africa

Barriers and Challenges to Waste Management Hindering the Circular Economy in Sub-Saharan Africa

Numerical analysis of water, energy, and environment nexus in the hybrid thermal and solar multigeneration power plants

A Critical Review on the Development and Utilization of Energy Systems in Uganda

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