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Building materials recycler switches fleet to Neste renewable diesel

Green Car Congress

Since forming in 2013, Argent Materials, a San Francisco Bay Area recycler of concrete and asphalt, and supplier of aggregate such as crushed rock, entry, cutback, sand, backfill and base rock for construction projects, has diverted more than a billion pounds of waste from local landfills. There’s no change in engine performance.

Renewable 448
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E-Waste is a Cybersecurity Problem, Too

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million metric tons of electronic waste in 2019, up more than 21% over five years, according to the United Nations’ most recent assessment. Only about 17% of that e-waste was recycled, and what happens to the rest can be detrimental for both human health and privacy. The world generated a record 53.6 We have so, so, so many devices.

Waste 142
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MIT team proposes flex-fuel gasoline-alcohol engine PHEV long-haul trucks

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In a paper being presented at WCX SAE World Congress Experience in Detroit this week, a team from MIT is proposing the use of a flex-fuel gasoline-alcohol engine approach for a series-hybrid powertrain for long-haul Class 8 trucks. Ethanol or methanol would be employed to increase knock resistance. —Daniel Cohn. —Daniel Cohn.

MIT 247
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EU research project IDEALFUEL seeks to develop marine low-sulfur heavy fuel oils from biomass; Bio-HFO

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Although cleaner fuels are available, many companies opt for HFOs due to their low cost. However, HFOs are banned in the national waters of many countries. In addition, the International Maritime Organization (IMO) is seeking to ban HFO use in Arctic waters.

Mariner 273
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ICL researchers develop new membrane-based system for cheap, efficiently made biofuels

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In contrast to water, the extractant does not form a heterogeneous azeotrope with n-butanol, and the overall energy consumption of for n-butanol production is 3.9 —Professor Andrew Livingston of Imperial’s Department of Chemical Engineering. —Co-author Dr Ji Hoon Kim, also of the Department of Chemical Engineering.

Cheap 321
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How Engineers Can Help Protect Earth From Worsening Climate Change

Cars That Think

Engineers and technologists can and should play major roles in creating a greener planet, creating tools that address environmental degradation. The microbes and minerals in soil systems regulate water, cycle nutrients, filter pollutants, physically support plants, and sequester greenhouse gasses.

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ICL briefing paper estimates that 52% of all small particle pollution from road transport comes from tires and brakes

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In the new briefing paper, a multidisciplinary group of Imperial experts including engineers, ecologists, medics, and air quality analysts have called for as much investment into tire wear research as there is for reducing fuel emissions—and for understanding their interactions. Water Research 139, 83-100. Klöckner, P.,

Pollution 243