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Cotton offers a new ecologically friendly way to clean up oil spills

Date:
May 15, 2013
Source:
American Chemical Society
Summary:
With the Deepwater Horizon disaster emphasizing the need for better ways of cleaning up oil spills, scientists are reporting that unprocessed, raw cotton may be an ideal, ecologically friendly answer, with an amazing ability to sop up oil.

Raw cotton.
Credit: Rafael Ben-Ari / Fotolia

With the Deepwater Horizon disaster emphasizing the need for better ways of cleaning up oil spills, scientists are reporting that unprocessed, raw cotton may be an ideal, ecologically friendly answer, with an amazing ability to sop up oil.

Their report, which includes some of the first scientific data on unprocessed, raw cotton's use in crude oil spills, appears in the ACS journal Industrial & Engineering Chemistry Research.

Seshadri Ramkumar and colleagues note that a particular need exists for oil-spill sorbents that are abundantly available at relatively low cost, sustainable and biodegradable. There have been extensive studies on fibers such as barley straw, kapok and wool -- but big gaps in knowledge about their basic crude oil-uptake mechanisms and no data on unprocessed raw cotton. Ramkumar's team decided to fill those gaps with research on the oil sorption properties of low micronaire cotton, a form of unprocessed cotton with relatively less commercial value.

They report that each pound of the material has the ability to sop up and hold more than 30 pounds of crude oil. The cotton fibers take up oil in multiple ways, including both absorption and adsorption (in which oil sticks to the outer surface of the cotton fiber). "In contrast to synthetic sorbents, raw cotton with its high crude oil sorption capacity and positive environmental footprint make it an ecologically friendly sorbent for oil spill cleanups," the report concludes.

The authors acknowledge funding from the Texas State Support Program of Cotton Incorporated and The CH Foundation.


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Journal Reference:

  1. Vinitkumar Singh, Ronald J. Kendall, Kater Hake, Seshadri Ramkumar. Crude Oil Sorption by Raw Cotton. Industrial & Engineering Chemistry Research, 2013; 52 (18): 6277 DOI: 10.1021/ie4005942

Cite This Page:

American Chemical Society. "Cotton offers a new ecologically friendly way to clean up oil spills." ScienceDaily. ScienceDaily, 15 May 2013. <www.sciencedaily.com/releases/2013/05/130515113833.htm>.
American Chemical Society. (2013, May 15). Cotton offers a new ecologically friendly way to clean up oil spills. ScienceDaily. Retrieved September 20, 2014 from www.sciencedaily.com/releases/2013/05/130515113833.htm
American Chemical Society. "Cotton offers a new ecologically friendly way to clean up oil spills." ScienceDaily. www.sciencedaily.com/releases/2013/05/130515113833.htm (accessed September 20, 2014).

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