When olive oil is produced, the leftover water and solid residue are discarded – and that can be problematic. Help may be on the way, however, as scientists have devised a process of converting the wastewater into biofuel, fertilizer and clean water.
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According to researchers at Queen's University Belfast, around 20,000 metric tons of aluminum foil is tossed away in the UK each year – enough to stretch to the Moon and back. This prompted chemistry researcher Ahmed Osman to look for new ways to put all that waste to use.
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Used coffee grounds can already be turned into biofuel but it's a fairly complex affair, making its widespread use unlikely. That could be about to change, however, as scientists have simplified the coffee-grounds-to-biofuel conversion process.
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Till now, in the US, tests of genetically engineered algae have been confined to the lab. The US Environmental Protection Agency approved moving things outdoors, and green glowing algae was let loose in water from five reservoirs. Should anyone be worried? Not all, according to the results.
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They may give us an almost endless supply of eggs and nuggets, but industrial chicken farming comes with a tradeoff: it produces a lot of poop. To turn a con into a pro, researchers have developed a process that mixes chicken manure with an invasive weed to create a feedstock for making biofuel.
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What if biofuel crops could be grown on marginal land that wouldn't be suitable for food crops anyway? Well, that's the case with sugarcane. Now, genetically-engineered types of sugarcane may make it a more valuable source of biofuel than ever before.
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Aqualia and SEAT are teaming up to develop a sustainable fuel from wastewater. The project, known as Life Metha-morphosis, is aimed at creating a biofuel from treated organic waste, which can then be used to power CNG cars, whose CO2 emissions would be cut by up to 80 percent.
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By analyzing the contrails created by planes running on a biofuel mix, NASA has found that biofuels can cut particle emissions by 70 percent. The benefits come not just from reducing carbon emissions but by also cutting down the chance of contrails forming, which have a bigger impact on the climate.
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Microalgae is a potentially valuable source of biofuel. Unfortunately, however, growing it on a large scale can be a rather fussy process. Syracuse University Ph.D. candidate Bendy Estime has set out to change that, by developing a new growth medium that makes cultivation and harvesting easier.
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Alaska Airlines has flown a number of commercial passengers across the United States, fueled by woody biomass.
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