Group items tagged

Millions of printed circuit boards from discarded electronics are tossed into landfills every year. In addition to the volume of waste, the material can leach chemicals into the soil. As an alternative, researchers at Shanghai Jiao Tong University in China are finding various ways to reuse the panels, including as an additive in asphalt.

University of China is using ground-up circuit boards to strengthen cement

Headlines abound with stories of branded technology being fished out of rivers and landfills in developing nations leaking toxic metals into the water supply. The Environmental Protection Agency estimates roughly 400,000 tons of e-waste goes to recyclers every year, and that up to 80 percent of the materials sorted for recycling end up in operations in China, India, Southeast Asia and West Africa where it is disassembled and burned or dumped. But it doesn't have to be that way, declares Mark Newton, the senior manager of environmental sustainability at Dell Computers, the computer manufacturing giant based in Round Rock, Texas.

Approach Two relies primarily on government statistics on sales of electronic products. It then uses the same lifespan data (with some modifications) as Approach One to estimate EOL quantities. From these EOL estimates, we subtract the quantity of selected electronics disposed to yield the quantity recycled. This approach also provides information on the composition of electronic products, as well as the number of select electronic devices entering storage/reuse annually.

This analysis relies primarily on market research data on sales of electronic products. It then applies these sales data to some of the most comprehensive collection information available to estimate product lifespans and the amounts of particular products that are ready for EOL management. From these EOL estimates, we subtract the estimated quantity recycled to yield the quantity disposed. This approach also provides information on the export of CRT monitors and TVs, as well as the amount of selected electronics cumulatively in storage.