Valorization of bromine-containing waste printed circuit boards and biowastes through co-pyrolysis process for fuel production

Abstract

The present study investigates the co-pyrolysis process of waste printed circuit boards (WPCBs) and biowastes as a sustainable solution for managing e-waste, focusing on the challenges posed by brominated flame retardants. The study aims to maximize fuel recovery and manage bromine content effectively. The study initiates with an overview of the growing issue of electronic waste due to industrialization and technological advancements. It highlights the complex composition of WPCBs, which contain valuable materials and hazardous brominated compounds that require careful treatment. The core of the project focuses on co-pyrolysis, a process where WPCBs and biomass are thermally decomposed together. This method enhances the yield of liquid and gas products, directing bromine to the solid phase and resulting in bromine-free liquid fuels. Based on the comprehensive information compiled, the study outlines a preliminary design for implementing the co-pyrolysis process. This includes considerations for reactor selection, temperature control, residence time, and product collection strategies, all aimed at optimizing the process for efficient fuel recovery and effective bromine management. The project concludes by summarizing the benefits of co-pyrolysis for WPCBs and biomass,proposing further research into scaling the process and optimizing bromine recovery. This work contributes to advancing sustainable waste management practices and resource recovery from e-waste.