The latest developments in engineering, as part of Progressive Engineer (www.ProgressiveEngineer.com), the online magazine and information source with a sustainability slant.
Sunday, October 7, 2018
Chemical engineer documents drop in plastics recycling
According to a post in WasteAdvantage magazine, the Plastic Pollution Coalition has publisheda new engineering estimateshowing plummeting recycling rates for plastic in United States. Author Jan Dell, a consulting chemical engineer, used U.S. Environmental Protection Agency data and industry data to estimate the U.S. plastic recycling rate will sink from 9.1% in 2015 to 4.4% in 2018. Dell estimated the recycling rate could drop as low as 2.9% in 2019 if plastic waste import bans are adopted by more countries in Asia.
The engineering estimate shows four factors contributing to the drop in recycling rates: 1. Plastic waste generation is increasing in the U.S. 2. Exports counted as recycled have cratered due to China’s ban. 3. Costs of recycling are increasing since many trucks are needed to collect the widely dispersed waste. 4. Plastic production expansion is keeping the prices of new plastics comparatively low. These factors work against the key premise that waste plastic will someday have sufficient value to drive reclaiming it rather than disposing of it.
“Einstein famously said that a definition of insanity is doing the same thing over and over again and expecting a different outcome,” says Dell. “We’ve seen promises, goals, ambitions, and aims from companies for nearly 30 years toincrease recycled contentandreduce the number of plastic bags they hand out.During that time, plastic use and pollution has increased as well-documented byJenna Jambeck,Roland Geyer, and other researchers. The projected less-than-5% U.S. plastic recycling rate in 2018 should be a wake-up call to the false promise that the existing voluntary, economic-driven U.S. recycling system is a credible solution to plastic pollution.”
“Recycling as the solution to plastic pollution is a myth,” said Dianna Cohen, co-founder and CEO of Plastic Pollution Coalition. “Recycling is the end point of the production chain, and it does not work without infrastructure and operational systems, which many places in the U.S. and world, simply do not have. In the U.S., industry looks to recycling as a catch-all, when really we must stop using plastic as a material for single-use. Corporations must step up to change their packaging because they are responsible for 100 percent of the damage it does. It’s time for all of us to work together and demand a systems shift away from ‘disposable’ toward nontoxic reusables.”
Jan Dell, PE, is a registered chemical engineer and author of The Last Beach Cleanup (to be published in 2019). She has worked with companies in diverse industries to implement sustainable business and climate resiliency practices in their operations, communities, and supply chains in more than 40 countries. Appointed by the White House Office of Science and Technology Policy, she was a member of the U.S. Federal Committee that led the 3rd National Climate Assessment from 2010 to 2014 and the Vice Chair of the U.S. Federal Advisory Committee on the Sustained National Climate Assessment in 2016-2017.