Search

ABSTRACTFood waste can be converted to a useful product such as biochar as a way of recycling waste to retain nutrients in the soil, which in turn contributes to carbon sequestration and offset some greenhouse gas emissions in the struggle to achieve carbon neutrality. Mixed food waste-derived biochars (FWB1–300°C, FWB2–450°C and FWB3–600°C) were pyrolysed at 300°C, 450°C and 600°C, respectively, using an electric kiln. Tests for physiochemical parameters and germination tests were performed. It was realized that at 300°C biochars produced had high nitrogen, organic matter, bulk density, biochar yield, and longer root lengths. The results indicate that municipal food waste biochars produced at three temperatures were suitable for use as fertilizer. However, biochar produced at a moderately lower temperature is favourable for agriculture purposes, FWB1–300°C and FWB2–450°C obtained moderate pH and ash levels and so are less toxic to the growth of plants.

Municipal Authorities (Assemblies) in Ghana have been unable to generate adequate revenue to effectively manage sanitation. To address this challenge, the Akuapem North and Ga West Municipalities have recently introduced a sanitation surcharge, which is collected through property rates. Using a mixed-method approach, this paper assesses the attitudes of policymakers and taxpayers towards the policy and the implications for its effective implementation. Qualitative data were collected through interviews with officials of the Municipal Assemblies while quantitative data were collected through a survey of 832 randomly selected property owners. The study revealed that policymakers’ de jure acceptance of the policy has not translated into de facto implementation. Although most taxpayers support the policy, a significant minority of them oppose it due to lack of trust in the Assemblies. Therefore, the Assemblies need to devise effective communication strategies, and enhance transparency in the use of revenue collected through the surcharge.