Eco-friendly Way of Decomposing BPA-containing Plastic

by Savitha C Muppala on  May 15, 2010 at 12:03 AM Environmental Health   - G J E 4
Fungi may help provide an eco-friendly way of decomposing polycarbonate plastic waste containing bisphenol A ((BPA), two Indian scientists have revealed.

Mukesh Doble and Trishul Artham say manufacturers produce about 2.7 million tons of plastic containing BPA each year.
 Eco-friendly Way of  Decomposing  BPA-containing Plastic
Eco-friendly Way of Decomposing BPA-containing Plastic

Polycarbonate is an extremely recalcitrant plastic, used in everything from screwdriver handles to eyeglass lenses, DVDs, and CDs.

Some studies have suggested that the BPA may have a range of adverse health effects, sparking the search for an environmentally safe way of disposing of waste plastic to avoid release of BPA.

The scientists pretreated polycarbonate with ultraviolet light and heat and exposed it to three kinds of fungi - including the fabled white-rot fungus, used commercially for environmental remediation of the toughest pollutants.

They found that fungi grew better on pretreated plastic, using its BPA and other ingredients as a source of energy and breaking down the plastic.

After 12 months, there was almost no decomposition of the untreated plastic, compared to substantial decomposition of the pretreated plastic, with no release of BPA.

The study has appeared in ACS' Biomacromolecules, a monthly journal.

Source: ANI

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