Recycling De-Icer Cuts Carbon Emissions

Recycling airport de-icer, comprised mostly of propylene glycol (PG), rather than cleaning it in a wastewater treatment plant, reduces carbon dioxide emissions by 40%-50%, according to an independent study published recently in Environmental Impact Assessment Review, a peer-reviewed journal.   According to the study, the carbon savings are generated in two areas; two-thirds of the savings are made because the footprint of recycling PG is markedly lower than the footprint for manufacturing fresh PG. The other third of the savings are made by avoiding...

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