Study of the biogas potential generated from residue: peanut shells

The increase in agricultural production generates a large volume of waste, which may lead to concerns about its proper destination. The main economic activity in Herculândia City, Western region of São Paulo State, Brazil, is the production and processing of peanuts. In this process, a large volume of peanut shells is generated. Following the current movement of using waste for energy purposes, in compliance with what was established by the Sustainable Development Goals (SDGs), this work aimed to carry out a study on the biogas potential generated from peanut shells. To this end, a low-cost biodigester prototype was built, which, over a period of 108 days, produced biogas and biofertilizer. The results showed that there was production of biogas from peanut waste; however, the volume produced did not provide savings in electricity costs when compared to the production of biogas from animal waste. Nevertheless, the work demonstrated the importance of providing solutions to the disposal of peanut shells, effectively mitigating future environmental problems, and serving as an alternative for generating sustainable and low-cost energy, especially for small producers.

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Ghana's post-MDGs sanitation situation: an overview

Journal of Water Sanitation and Hygiene for Development ◽

10.2166/washdev.2019.031 ◽

2019 ◽

Vol 9 (3) ◽

pp. 397-415 ◽

Cited By ~ 5

Author(s):

Eugene Appiah-Effah ◽

Godwin Armstrong Duku ◽

Naziru Yakubu Azangbego ◽

Ransford Kojo Aduafo Aggrey ◽

Barbara Gyapong-Korsah ◽

...

Keyword(s):

Sustainable Development Goals ◽

Low Cost ◽

Property Tax ◽

Sociocultural Factors ◽

The Sustainable Development ◽

Potential Barriers ◽

Development Goals ◽

Barriers And Opportunities ◽

Municipal Assembly ◽

Public Toilets

Abstract This paper presents an overview of Ghana's sanitation situation post-Millennium Development Goals (MDGs). It specifically examines why the MDG target on sanitation was missed, Ghana's preparedness towards achieving the Sustainable Development Goals (SDGs) sanitation target, potential barriers and opportunities for the sanitation sector. An eight step policy analysis framework guided the review. The findings indicate that the low sanitation has largely been driven by rather complex economics, institutional and sociocultural factors including inadequate financial commitment, poor implementation of policies, bad attitude and perception towards sanitation and extensive use of shared and public toilets. Nevertheless, it was found that recent reforms and programmes in the sanitation sector such as the creation of new Sanitation and Water Resource Ministry, National Sanitation Authority (NSA), introduction of sanitation surcharges included in property tax, and programmes such as the Greater Accra Municipal Assembly sanitation and water project put Ghana in a better position to rapidly increase its coverage. However, efforts would have to be accelerated by forging partnerships with the private sector to provide efficient and low-cost technologies, financial schemes, human and technical resources for improved service delivery.

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