George Town, Australia — Some Australian farmers are closing the loop by buying plastic lumber fence posts made from their own recycled polyethylene cattle feed bags.
On Australia's island state of Tasmania, George Town-based Poly Marketing Pty. Ltd., which trades as Envorinex, is collecting used silage wrap and converting it into 100 percent recycled fence posts.
Silage is hay and other cattle feed harvested during summer, rolled into large bales and sealed in PE wrap to store until winter. During winter, the wrap is removed and the silage fed to cattle.
Envorinex's recycling line shreds, washes, dries and extrudes the waste silage wrap into pellets ready for re-manufacturing into fence posts.
CEO Jenny Brown told Plastics News Envorinex provides free bins it manufactures from UV-stabilized waste PVC to farmers, so they can leave silage wrap for collection at their farm gates.
She said free collection was cost effective in Tasmania because the state is relatively small — only 226 miles long from north to south and 190 miles from east to west. Some larger farms feed cattle year-round, so supply is continuous.