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Little Star

(17,055 posts)
Thu Jul 30, 2015, 08:31 AM Jul 2015

Scientists Find a Natural Way to Clean Up Oil Spills

Researchers at the City College of New York are testing a spray made of phytol, a molecule in chlorophyll, on oil in lab wave pools



After an oil spill, the number one priority is finding a way to contain and remove the oil. Boat operators sometimes deploy physical booms to trap the oil so that it can be siphoned or burned off of the water's surface. But, because oil in water is tricky to contain, other methods for corraling it call for adding manmade chemicals to the water.

In a technique called dispersion, chemicals and wave action break down the oil into smaller particles, which then disperse and slowly biodegrade over a large area. Then, there is chemical herding. To clean up an oil spill with a chemical herder, crews spray a compound around the perimeter of the spill. The compound stays on the surface and causes the oil to thicken. Once it’s thick enough, it can be burned off. Chemical herding requires calm water, which makes it unreliable in some spills, but, unlike mechanical removal or dispersion, it gets all the oil. The technique has been around since the 1970s, but, until now, the chemicals used to herd the oil, called soap surfectants, didn't break down over time. After the oil burned off, they’d still be in the ecosystem.

Researchers at the City College of New York, led by chemist George John and chemical engineer Charles Maldarelli, have developed a way to clean up oil using a chemical herder made of phytol, a molecule in chlorophyll that makes algae green. It’s the first non-toxic, natural way to remediate oil spills.

http://www.smithsonianmag.com/innovation/scientists-find-natural-way-to-clean-up-oil-spills-with-plant-based-molecule-180955815/?utm_source=facebook.com&no-ist

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Scientists Find a Natural Way to Clean Up Oil Spills (Original Post) Little Star Jul 2015 OP
Thats "Surfactant" not "surfectant"...and technically... NeoGreen Jul 2015 #1
Clean up is good but what about prevention daybranch Jul 2015 #2

NeoGreen

(4,031 posts)
1. Thats "Surfactant" not "surfectant"...and technically...
Thu Jul 30, 2015, 08:42 AM
Jul 2015

...the Corexit that was reportedly used in great quantities for the dispersion of the 2010 Gulf Spill was a Surface-Active-Agent being primarily comprised of Tween-80, a common non-ionic surfactant.

For the record, my master's thesis was titled something to the effect of: Surfactant Enhanced Dissolution of Chlorinated Solvent Mixtures, so I have a minor bit of practical knowledge when it comes to the use of Surfactants, but that was a few years ago, and I am sure the technology has progressed.

Phytol sounds like a promising idea.

daybranch

(1,309 posts)
2. Clean up is good but what about prevention
Thu Jul 30, 2015, 09:56 AM
Jul 2015

It is always amazing to me that arguments are always made in favor of the status quo which lets fossil fuel companies continue to destroy our world.
One of the strangest to me is this great movement to photovoltaic solar energy to reduce use of carbon fuels when insulation much more reliably reduces or obliterates most of the need.
The Department of Energy works hand in hand with Business to sell new energy saving products to more efficiently use what we never needed to use in the first place. We hear of home weatherization bur do we hear of attempts to just remove heating and cooling bills with insulation , reflective surfaces(white roofs), overhangs and other means of shading. I recognize that photovoltaic advocates are glad that China's slave labor can produce a great downward trend on Photovoltaic panel prices but I really question if this is not just another technowit way in which to solve simple problems with complicated solutions. H. L. Mencken said that for every complicated situation, thereis a simple solution that is simple, direct, and wrong. I would say American business would sell for every simple problem (heat loss or absorption) a device that is complicated, keeps us dependent and costs us forever. So while I aplaud this band aid I think we should really address the real problem which is over reliance on fossil fuels.

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