Charles Rashama
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View article: A critical review of food waste and poultry manure anaerobic co-digestion: an eco-friendly valorization for sustainable waste management and biogas production
A critical review of food waste and poultry manure anaerobic co-digestion: an eco-friendly valorization for sustainable waste management and biogas production Open
Anaerobic co-digestion (AcoD) has emerged as an effective technology for treating poultry manure (PM) and food waste (FW), converting these organic materials into valuable biogas and bio-fertilizers. The management of PM and FW has become …
View article: Assessing biosorbent materials for antibacterial properties and filtration efficiency for potential application in wastewater treatment
Assessing biosorbent materials for antibacterial properties and filtration efficiency for potential application in wastewater treatment Open
This study investigates the efficacy of certain biosorbents as a filtration method to reduce chlorination and its costs in wastewater treatment. A two-step filtering process was used, with each phase containing 200 mL of bacterially contam…
View article: Harnessing Horsepower from Horse Manure at the EARTH Centre in South Africa: Biogas Initiative Improve the Facility’s Operational Sustainability
Harnessing Horsepower from Horse Manure at the EARTH Centre in South Africa: Biogas Initiative Improve the Facility’s Operational Sustainability Open
This study investigated the sustainability aspects of implementing a small-scale biogas digester project at the EARTH Centre, a horse-riding facility for the disabled, in South Africa. Firstly, an energy audit of the facility was conducted…
View article: Inferences made from mineral elements characterisation of anaerobic digestion substrates: preliminary results from avocado oil processing byproducts
Inferences made from mineral elements characterisation of anaerobic digestion substrates: preliminary results from avocado oil processing byproducts Open
View article: Significance of mineral elements characterization for anaerobic digestion substrates: The case of avocado oil processing by-products
Significance of mineral elements characterization for anaerobic digestion substrates: The case of avocado oil processing by-products Open
Mineral elements effects on anaerobic biogas production (AD) were reviewed and inferences made for avocado oil processing by-products. Mineral elements in these by-products were measured using ICP-OES methods. It was noted that there is no…
View article: Preliminary biogas production assessment on insect frass and leachates of the organic wastes fed to larvae: A Johannesburg‐based factory case study
Preliminary biogas production assessment on insect frass and leachates of the organic wastes fed to larvae: A Johannesburg‐based factory case study Open
The biomethane potential of insect frass and leachates from waste (larvae feedstock) stockpile was evaluated. Frass was derived from a black soldier fly larvae (BSFL) operation that uses a fruit and vegetable waste diet. The two waste stre…
View article: Progress towards the standardization of test parameters and protocols for evaluating densified fuel products
Progress towards the standardization of test parameters and protocols for evaluating densified fuel products Open
Densification technologies used in managing biomass and coal fines to produce fuel briquettes or pellets are gaining rapid acceptance and application due to the widespread uptake of renewable energy. This has resulted in the mushrooming of…
View article: Investigating the Anaerobic Digestion of Water Hyacinth (Eichhornia crassipes) Sourced from Hartbeespoort Dam in South Africa
Investigating the Anaerobic Digestion of Water Hyacinth (Eichhornia crassipes) Sourced from Hartbeespoort Dam in South Africa Open
The biodegradability of water hyacinth for biogas and biofertilizer production was studied under mesophilic conditions. The effects of water hyacinth pretreatments were also included in this investigation. It was found that water hyacinth …
View article: Investigating Anaerobic Digestion of Water Hyacinth (Eichhornia Crassipes) Sourced from Hartbeesport Dam in South Africa
Investigating Anaerobic Digestion of Water Hyacinth (Eichhornia Crassipes) Sourced from Hartbeesport Dam in South Africa Open
The biodegradability of water hyacinth for biogas and biofertiliser production was studied under mesophilic conditions. The effects of water hyacinth pre-treatments were also included in this investigation. It was found that water hyacinth…
View article: Hierarchy of Waste Management: Option Selection for Managing Johannesburg City’s Restaurant Food Waste
Hierarchy of Waste Management: Option Selection for Managing Johannesburg City’s Restaurant Food Waste Open
Waste management strategies specified in the hierarchy of waste management were evaluated by applying a Multi-Criteria Decision-Making (MCDM) technique called the Analytic Hierarchy Process (AHP) to choose a strategy for managing Johannesb…
View article: Applying PICRUSt and 16S rRNA functional characterisation to predicting co-digestion strategies of various animal manures for biogas production
Applying PICRUSt and 16S rRNA functional characterisation to predicting co-digestion strategies of various animal manures for biogas production Open
An estimated 25 million tons of animal manure is produced globally every year, causing considerable impact to the environment. These impacts can be managed through the use of anaerobic digestion (AD) This process achieves waste degradation…
View article: Peculiar Response in the Co-Culture Fermentation of Leuconostoc mesenteroides and Lactobacillus plantarum for the Production of ABE Solvents
Peculiar Response in the Co-Culture Fermentation of Leuconostoc mesenteroides and Lactobacillus plantarum for the Production of ABE Solvents Open
Two bacterial strains (CL11A and CL11D) that are capable of ABE fermentation, identified as Leuconostoc mesenteroides and Weissella cibari, were isolated from the soil surrounding the roots of bean plants. Another strain (ZM 3A), identifie…