Food waste was pyrolyzed by four pyrolysis processes to produce food waste biochars FWBC FWSB FWRB HWFB respectively润色

The resulting biochars were characterized for their physicochemical properties, including surface area, pore size distribution, elemental composition, and functional groups. The FWBC had the highest surface area and total pore volume, while the FWRB had the highest carbon content. The FWSB and HWFB had similar properties, with lower surface area and pore volume compared to the FWBC and FWRB. The biochars were also tested for their adsorption capacity for heavy metals, and the FWBC showed the highest adsorption capacity. Overall, the results suggest that pyrolysis of food waste can produce biochars with varying properties and potential applications in soil remediation and other environmental applications