Harvard's oil recycling system, installed on this Caterpillar 980G loader, cleans the used oil so it can be reused in the engine. Both engine and hydraulic filters, shown here on a mixer, keep ...

The plastics industry has worked for decades to convince people and policymakers that recycling would keep waste out of landfills and the environment. Consumers sort their trash so plastic packaging ...

Doug Mickelson has faced his share of skepticism. But he and his product are finding growing acceptance, too. His Horace, N.D.-based Oil Transfer Systems makes and sells a recycling system designed ...

Editor's Note: This article has been updated. Castrol MoreCircular used-oil recycling program includes collecting, re-refining, and repurposing base oil into lubricants to be put back into supply ...

Years ago, oil filters were simply trash, and the waste oil from them was a by-product that was burned in a heater or a costly disposable that a recycling company was paid to take away. Those days are ...

The first 100% emission-and-pollutant-free recycling machine for auto-shredder residue (ASR) was recently developed by engineers at Global Resource Corp., West Berlin, N.J. The first 100% emission-and ...