|By Marketwired .||
|July 9, 2014 01:46 PM EDT||
WASHINGTON, DC -- (Marketwired) -- 07/09/14 -- A new study conducted by the Earth Engineering Center (EEC) of Columbia University has found that if all of the municipal solid waste (MSW) that is currently put into landfills each year in the United States were diverted to waste-to-energy (WTE) power plants, they could generate enough electricity to power nearly 14 million homes annually, or 12 percent of the U.S. total. According to the study, this shift also could reduce greenhouse gas emissions by at least 123 million tons of carbon dioxide equivalents per year, an amount comparable to taking more than 23 million cars off our roads.
The new study, "2014 Energy and Economic Value of Municipal Solid Waste (MSW), including and Non-recycled Plastics (NRP), Currently Landfilled in the Fifty States," found that the recovery of resources from waste, and hence, diverted from landfill, in the United States increased between 2008 and 2011. The recycling of materials from MSW improved by 18.5 million tons, and the tonnage of materials processed by WTE facilities grew by 3.8 million tons during this period.
Key statistics from the study are illustrated in a new infographic, "The Power of Waste."
The study's authors noted that, while some individual states have invested in infrastructure to boost recycling and energy recovery from MSW -- Connecticut, Maine, Massachusetts, Minnesota, and New Hampshire topped the list -- overall, European countries have set a much higher bar. For example, the study calculated that if the United States were to deploy district heating systems similar to countries such as Denmark, Germany, Sweden and Norway, our current waste stream could provide heat for close to 10 million additional homes.
"Modern technologies that convert waste into energy present a good opportunity to significantly reduce our reliance on landfills, lower our carbon footprint, and provide renewable energy to businesses and communities," said Nickolas Themelis, director of the Earth Engineering Center at Columbia University. "Currently, many developed nations are further along in embracing and expanding their use of energy recovery technologies as a vital part of their sustainable resource management systems. This presents an important opportunity for city planners and policy makers in the United States."
Sponsored by the American Chemistry Council (ACC), the study is based on data obtained in Columbia University's 2014 Survey of Waste Management in the U.S., which looked at waste management statistics during 2011, and from MSW characterization studies in several states.
Engineers at the Earth Engineering Center also calculated the quantity of non-recycled plastics -- a subset of MSW that remains after plastics that can be economically recycled have been extracted --available for energy conversion. This latest study expands on an earlier EEC study (published in 2011 and based on data from 2008) by including (in addition to plastics in MSW) plastics that are not counted by the U.S. Environmental Protection Agency as MSW but that are disposed in landfill, such as construction demolition debris and auto shredder residue.
According to the study's authors, plastics represent 11 percent of the total U.S. waste stream. The total recovery rate for plastics, which includes both recycling and energy recovery, increased from 14.3 percent in 2008 to 16.6 percent in 2011. The recycling rate for plastics increased by 21 percent between 2008 and 2011 to reach nearly 2.7 million tons. The study also found that if all non-recycled plastics in the U.S. were converted to energy through facilities that use modern plastics-to-oil technologies, they could produce nearly 6 billion gallons of gasoline, enough to fuel nearly 9 million cars per year.
"Every day, plastics significantly enhance our ability to reduce, reuse, recycle and recover more of our resources," said Steve Russell, vice president of plastics for ACC. "These important findings show that, while we're making progress, we have a vital opportunity to recycle and recover more of these valuable materials."
ACC's Plastics Division just released a new animated video that explores a growing number of processes that are helping to unlock the value of non-recycled used plastics -- as new materials and as energy. The video, "Beyond Recycling: Recovering the Energy in Non-Recycled Plastics," illustrates processes for recycling plastics and converting those plastics that can't be economically recycled into various forms of energy, including oil, gas, electricity and liquid and solid fuels.
About the Plastics Division
The American Chemistry Council's Plastics Division represents leading companies dedicated to providing innovative solutions to the challenges of today and tomorrow through plastics. Ongoing innovations from America's Plastics Makers have led to medical advances and safety equipment that make our lives better, healthier and safer every day. And, advances in plastics are helping Americans save energy, reduce greenhouse gas emissions and decrease waste. Because plastics are such a valuable resource, the Plastics Division is leading efforts to "reduce, reuse, recycle and recover," including through outreach, education and access to advances in recycling technology.
The American Chemistry Council (ACC) represents the leading companies engaged in the business of chemistry. ACC members apply the science of chemistry to make innovative products and services that make people's lives better, healthier and safer. ACC is committed to improved environmental, health and safety performance through Responsible Care®, common sense advocacy designed to address major public policy issues, and health and environmental research and product testing. The business of chemistry is a $770 billion enterprise and a key element of the nation's economy. It is one of the nation's largest exporters, accounting for twelve percent of all U.S. exports. Chemistry companies are among the largest investors in research and development. Safety and security have always been primary concerns of ACC members, and they have intensified their efforts, working closely with government agencies to improve security and to defend against any threat to the nation's critical infrastructure.
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