Estimating flows and metal recovery values of waste printed circuit boards in Australian e-waste

摘要

This paper overviews current situation with e-waste management in Australia, focusing on material flows and metal recovery values of waste printed circuit boards (PCBs). PCBs often contain high concentrations of precious and other metals representing the most valuable material for recycling from e-waste. The amount of recovered PCBs from e-waste in Australia is estimated at up to 10 kt per year or 40% (2014), with potential metal recovery value of US$ 78 m or AUD 100 m (2014). However, most of collected PCBs are exported for recycling overseas, resulting in lost economic opportunities. The findings from this study represent the first comprehensive countrywide estimation of volumes, destiny and metal recovery values for waste PCBs. While many figures are indicative and expert opinion based, they help overcome the limitations of the official statistics for e-waste in Australia and provide important data for a feasibility study if the metal recovery operations for PCBs are to be considered in the country.