Potential of biogas production from biomass and waste materials in the Small Island Developing State of Mauritius

Bundhoo, Zumar M.A.; Mauthoor, Sumayya; Mohee, Romeela

doi:10.1016/j.rser.2015.12.026

Cited by 47 publications

(17 citation statements)

References 87 publications

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“…The maximum values obtained from the generation of biogas in this research for food and garden waste were 0.023 and 0.005 kg CH 4 kg -1 waste, respectively, lower than those reported in the literature indicating 0.251 and 0.026 kg CH 4 kg -1 waste (Bundhoo et al, 2016). However, this information comes from a metropolis with more than one million inhabitants and the study area is predominantly rural or semi-urban, which presumably had a role in the differences noted.…”

Section: Scenario E4: Landfillcontrasting

confidence: 81%

Valorisation of the organic fraction of municipal solid waste

et al. 2018

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The appropriate selection of treatment or final disposal for municipal solid waste generated by a population depends on multiple characteristics; decision-making becomes a challenge for those responsible for its integral management. Therefore, the objective of this research was to evaluate multi-scenarios of valorisation of the organic fraction of municipal solid waste. The methodology used included a sample of 421 houses to determine the generation and composition of the aforementioned municipal solid waste; this data served as input to be able to design four treatment and final disposal scenarios: current situation, composting, anaerobic digestion and landfill. The parameters of humidity, biochemical methane potential and biogas were used. In addition, organic fraction variability and treatment cost were considered. Data analysis included design of experiments with the uncertainty coefficient and predictive equations. The results showed that composting was the scenario that presented the highest coefficient of determination and therefore it would be the best choice to fit the particular conditions of the localities. It is concluded that this applied methodology can be used as a tool in the decision-making process regarding the valorisation of the organic fraction of municipal solid waste and can be replicated at a national and international level.

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Section: Scenario E4: Landfillcontrasting

confidence: 81%

Valorisation of the organic fraction of municipal solid waste

et al. 2018

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“…The amount and rates of waste generation are influenced by many factors such as urbanisation [15], population growth [15,16] social development [15], economic development [15,16], change in consumption patterns [15], industrialisation [15,17], and higher standards of living [16,17], amongst others. Hence the difference in development levels of communities or countries represent a significant difference in the different waste generation profiles of such communities.…”

Section: The Credibility Of Sub-saharan Africa's Assumptionsmentioning

confidence: 99%

The Conundrums of the Estimated Magnitude of Food Waste Generated in South Africa

Machate¹

2020

IJSDP

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This paper presents three conundrums that influence the estimation of the magnitude of food waste generated in South Africa. The first conundrum is the lack of standard definition of food waste which includes the inconsistencies and interchangeable use of food waste and food loss. The second conundrum relates to inconsistencies associated with the inclusion and exclusion criterion of inedible portions into food waste, and lack of clarity about the stages in the food supply chain at which food losses are considered food waste. The last conundrum relates to the credibility of sub-Saharan Africa's assumptions and methodological replicability used in the estimation of South Africa's magnitude of food waste generated. This paper highlights the influence of the three conundrums and relationship between qualitative and quantitative measurement of food waste variable by recalculating the food waste generation using the 2007-2009 data. Ultimately, the study results confirm that scientific quantification of variables should be based on clearly defined and validly demarcated qualitative variables to prevent methodological replicability and validity errors, as evident from the three conundrums identified in the South African food waste estimates.

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“…The power range of the CHP unit was estimated at 1MW and total energy production was calculated assuming CHP efficiencies of 34.6% for electricity and 42.0% for thermal energy (Bundhoo et al, 2016). The internal energy demand from the plant was assumed to be equal to 3.4% for electrical consumption and 11% for thermal consumption (Bundhoo et al, 2016), and these values were subtracted from the total energy produced by the plant. In this scenario, the net available electrical energy production of the biogas plant reached 8341 MWh per year.…”

Section: Anaerobic Digestionmentioning

confidence: 99%

Cocoa residues as viable biomass for renewable energy production through anaerobic digestion

Acosta

Vrieze

Sandoval

et al. 2018

Bioresource Technology

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The aim of this work was to evaluate the bioenergy potential of cocoa residue via anaerobic digestion. Batch and fed-batch lab-scale reactors were operated under low and high solids conditions. In the batch tests, 59 ± 4% of Chemical Oxygen Demand (COD) was recovered as methane. This corresponded with an average methane yield of 174 (wet) and 193 (dry) L kg volatile solids fed, whereas a series of fed-batch reactors produced 70 ± 24 (wet) and 107 ± 39 (dry) L CH kg volatile solids fed during stable conditions. A case study was developed for canton Balao (Ecuador) based on our experimental data, operational estimates and available cocoa waste in the area. Annually, 8341 MWh could be produced, meeting 88% of the current electricity demand in Balao. This case study proves the potential for cocoa waste as a source of renewable energy in rural areas.

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Potential of biogas production from biomass and waste materials in the Small Island Developing State of Mauritius

Cited by 47 publications

References 87 publications

Valorisation of the organic fraction of municipal solid waste

Valorisation of the organic fraction of municipal solid waste

The Conundrums of the Estimated Magnitude of Food Waste Generated in South Africa

Cocoa residues as viable biomass for renewable energy production through anaerobic digestion

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