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Researchers detect broad range of emerging synthetic antioxidants in dust in e-waste recyling centers

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Now, researchers have detected a broad range of emerging synthetic antioxidants, called hindered phenol and sulfur antioxidants, in dust from electronic waste (e-waste) recycling workshops, possibly posing risks for the workers inside. An open-access paper on the work is published in ACS’ Environmental Science & Technology Letters.

Waste 434
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Rice lab’s flash Joule heating extracts rare earth elements from waste at high yields

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The Rice lab of chemist James Tour has successfully extracted valuable rare earth elements (REE) from waste at yields high enough to resolve issues for manufacturers while boosting their profits. An open-acess paper on their study appears in Science Advances. —Deng et al. Rare earth elements aren’t actually rare.

Waste 434
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Simulation study suggests ORC waste heat recovery system could deliver potential 7% improvement in fuel consumption in a PHEV on highway

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Their paper was presented at the ASME Internal Combustion Engine Division 2012 Fall Technical Conference by Marcello Canova, assistant professor at OSU; lead author was Philipp Skarke, from the University of Stuttgart Institute for Internal Combustion Engines and Automotive Engineering. —Skarke et al. The OSU EcoCAR PHEV powertrain.

Waste 312
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Study finds urban waste heat affects temperatures across thousands of miles, warming some areas and cooling others

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The extra waste heat generated from buildings, cars, and other sources in major Northern Hemisphere urban areas causes winter warming across large areas of northern North American and northern Asia. At the same time, the changes to atmospheric circulation caused by the waste heat cool areas of Europe by as much as 1 degree C (1.8

Waste 262
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GE study finds 5% of worlds natural gas production wasted per year by flaring

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A newly released GE study — Flare Gas Reduction: Recent Global Trends and Policy Considerations —estimates that 5% of the world’s natural gas production is wasted by burning or “flaring” unused gas each year, despite some progress on the flaring issue. The study finds that the technologies required for a solution exist now.

Waste 260
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DOE awards $3M to MP Materials for project to extract rare earths from fossil fuel waste streams

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MP Materials has received a $3-million award from the Department of Energy (DOE) to complete a feasibility study, working with the University of Kentucky (UK), on a system to produce rare earth oxides, metals, and other critical materials recovered from coal by-products.

Kentucky 418
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Study finds high-density, low-rise cities such as Paris may be optimal urban form for reducing life cycle GHG emissions

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A study by researchers at CU Boulder and Edinburgh Napier University finds that high-density, low-rise environments such as those found in Paris are the optimal urban form when looking to reduce greenhouse gas emissions over their whole life cycle. There is a growing belief that building taller and denser is better.

Emissions 476