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 green links beneath to view the documents.

-Owens-Illinois, Inc. announces an aggressive plan to reduce energy consumption, carbon emissions and significantly increase the use of recycled glass in producing containers worldwide

O-I, the world’s largest manufacturer of glass packaging, recently completed a complete life cycle assessment of the environmental impact of glass containers.  The study will be used to assess the impact of a program O-I will implement which will cut the company’s energy consumption by 50%, reduce its carbon dioxide emissions by 65% and double its use of recycled glass so that a global average of 60% of each O-I container is recycled material over the next ten years.

O-I Reycling news release 5-5-10

O-I Life Cycle Assessment Analysis

-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


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