Glass recycling today is at a critical juncture as more communities adopt commingled collection of recyclables to save money. The result of this trend is a growing amount of mixed color cullet which heretofore has been regarded as a problem for increased glass recycling. GMG's CulChrome ® technology was developed to specifically address this problem by enabling the use of large amounts of mixed color cullet in glass manufacturing thus turning this "waste" product into a viable raw material for glass manufacturing.

This page is dedicated to highlighting the latest developments in the ongoing debate over how best to increase glass recycling.

Please read the introductions to the articles then click on the blue links beneath to view the documents.

-New York and California Award Grants Totaling More than $1 Million To Support GMG Technology for Increased Glass Recycling

Recycling support agencies in the states of California and New York have awarded grants totaling more than $1 million to support further development and implementation of GMG's CulChrome ® technology to expand the use of mixed cullet in glass container manufacturing

Grant Awards Story.pdf

-British Glass calls for end to mixed glass collections

Another glass container manufacturer claims that the best way to maximize glass recycling is to halt mixed glass collection - an idea that is out of sync with the economic reality of solid waste collection in today's world. GMG's CulChrome ® technology would allow British Glass to use mixed cullet to make containers, which actually increases glass recycling.

British Glass calls for end to mixed glass collections.pdf

-UK study criticizes "carbon blind" glass recycling schemes that grind waste glass into sand replacement and filtration products and concludes that re-melting recycled glass to make new glass is far more environmentally friendly

The study, by consulting firm Grant Thornton, finds that tonnage-based programs to divert glass from landfills don't pay enough attention to the environmental effects of alternative methods of waste diversion. The report focuses specifically on glass (see pages 10-18) and notes that a program to remove glass from the waste stream by grinding it into sand-replacement building and filtration products "generates more carbon dioxide than if the glass was sent to landfill."

The report concludes that using the glass in the manufacture of new containers in a closed-loop system is clearly the most environmentally friendly way to go. The report also recommends that the UK target its funding efforts at finding ways to promote closed-loop glass recycling in the face of the growing use of commingled glass collection.

UK Carbon and Recycling Report.pdf

-Canadian bloggers take note of UK report and relate its lessons to glass recycling issues in Ontario

The issue of dealing with mixed cullet collected in commingled recycling program in Ontario has sparked an ongoing debate among various interest parties in the province. In this blog excerpt, participants discuss the UK report (see above) and its implications for glass recycling in Ontario.

Group Hugs and Glass Ceilings.pdf

-Glass recycling and single stream collection issues spark debate between O-I official and Ontario recycling agencies

All of the key issues facing glass recycling today are dramatically highlighted in this 2006 exchange of letters between a top official of glass manufacturer O-I and officials of Ontario provincial recycling agencies.

The exchange focuses on commingled collection of glass and how that process purportedly affects the availability of cullet for glass manufacturing.

Please note that O-I is using only color separated cullet in its glass production. GMG is working to educate the glass manufacturing and glass recycling communities about its CulChrome ® technology which enables the use of mixed color cullet to make amber and green bottles.

O-I Letter.pdf

Unical Reply Letter.pdf

Stewardship Ontario Reply Letter.pdf

Ontario Glass Facts.pdf

O-I Response Letter.pdf

 

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