Research team develops eco-friendly oil spill solution

Research team develops eco-friendly oil spill solution

City College of New York researchers led by chemist George John have developed an eco-friendly biodegradable green "herding" agent that can be used to clean up light crude oil spills on water.

Derived from the plant-based small molecule phytol abundant in the marine environment, the new substance would potentially replace chemical herders currently in use. According to John, professor of chemistry in City College's Division of Science, "the best known chemical herders are chemically stable, non-biodegradable, and hence remain in the marine ecosystem for years."

"Our goal was to develop an eco-friendly herding molecule as an alternative to the current silicone-based polymers," said John.

Herding agents are surface-active molecules (surfactants) that when added to a liquid, such as seawater, reduce the surface tension. In the case of , when they are added along the periphery of an spill slick, they contract and thicken the slick or push slicks together so that they can be collected or burned.

"Understanding the interfacial behavior is crucial to design the next generation eco-friendly herding agents" said Charles Maldarelli, a professor of engineering in CCNY's Benjamin Levich Institute for Physico-Chemical Hydrodynamics who participated in the study.

John's research team also included Deeksha Gupta, a postdoctoral student now at the Royal Society of Chemistry, and Vijay John of Tulane University.

Oil herding experiment at the lab scale mimicking an oil spill scenario. Credit: Gupta et al. Sci. Adv. 2015;1:e1400265

Their finding will be published in the June 26 issue of Science Advances.


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More information: Sacrificial amphiphiles: Eco-friendly chemical herders as oil spill mitigation chemicals, advances.sciencemag.org/content/1/5/e1400265
Journal information: Science Advances

Citation: Research team develops eco-friendly oil spill solution (2015, June 26) retrieved 22 January 2020 from https://phys.org/news/2015-06-team-eco-friendly-oil-solution.html
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