Navigation Links
Polymer-based filter successfully cleans water, recovers oil in Gulf of Mexico test

PITTSBURGHIn response to the massive oil leak in the Gulf of Mexico, a University of Pittsburgh engineering professor has developed a technique for separating oil from water via a cotton filter coated in a chemical polymer that blocks oil while allowing water to pass through. The researcher reports that the filter was successfully tested off the coast of Louisiana and shown to simultaneously clean water and preserve the oil.

Di Gao, an assistant professor and William Kepler Whiteford Faculty Fellow in the Department of Chemical and Petroleum Engineering in Pitt's Swanson School of Engineering, created his filter as a possible method to help manage the spreading oil slick that resulted from the April 20 explosion of BP's Deepwater Horizon drilling platform. Gao has submitted his idea through the Deepwater Horizon Response Web site managed by the consortium of companies and government agencies overseeing the disaster response.

A video of Gao testing his filter with oil and water samples from the Gulf of Mexico spill is available on YouTube at

Gao's filter hinges on a polymer that is both hydrophilicit bonds with the hydrogen molecules in waterand oleophobic, meaning that it repels oil. When the polymer is applied to an ordinary cotton filter, it allows water to pass through but not oil. The filter is produced by submerging the cotton in a liquid solution containing the polymer then drying it in an oven or in open air, Gao explained.

For the massive slick off the U.S. Gulf Coast, Gao envisions large, trough-shaped filters that could be dragged through the water to capture surface oil. The oil could be recovered and stored and the filter reused. Current cleanup methods range from giant containment booms and absorbent skimmers to controlled fires and chemical dispersants with questionable effects on human health and the environment.


Contact: Morgan Kelly
University of Pittsburgh

Related biology news :

1. Blue light-filtering increases macular pigment, may protect against age-related vision loss
2. New filtering technology has environmental, industrial applications
3. Biological sand filters, a practical approach to combat poverty and inequality
4. High blood pressure takes big toll on small filtering units of the kidney
5. Research team finds that microorganisms filter nitrogen from small streams
6. Increasing nitrogen pollution overwhelms filtering capability of streams
7. Streams natural filters, if not overloaded
8. From the backyard to the ocean: New study shows streams act as key nitrogen filters
9. Bacteria and nanofilters -- the future of clean water technology
10. Pathological gambling may be successfully treated with medications for substance addiction
11. Rare genetic disease successfully reversed using stem cell transplantation
Post Your Comments:
(Date:6/30/2017)... 2017 Today, American Trucking Associations announced ... face and eye tracking software, became the newest ... "Artificial intelligence and advanced sensing ... a driver,s attentiveness levels while on the road.  ... detect fatigue and prevent potential accidents, which could ...
(Date:5/16/2017)... , May 16, 2017   Bridge Patient ... organizations, and MD EMR Systems , an ... partner for GE, have established a partnership to ... product and the GE Centricity™ products, including Centricity ... These new integrations will allow ...
(Date:4/17/2017)... NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or the ... Annual Report on Form 10-K on Thursday April 13, 2017 with ... ... Relations section of the Company,s website at  under "SEC ... . 2016 Year Highlights: Acquisition ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... , ... October 10, 2017 , ... Dr. Bob Harman, ... his local San Diego Rotary Club. The event entitled “Stem Cells ... and had 300+ attendees. Dr. Harman, DVM, MPVM was joined by two human ...
(Date:10/10/2017)... ... October 10, 2017 , ... The Pittcon Program Committee ... honoring scientists who have made outstanding contributions to analytical chemistry and applied ... the world’s leading conference and exposition for laboratory science, which will be held ...
(Date:10/9/2017)... ... October 09, 2017 , ... The Giving Tree Wellness ... targeting the needs of consumers who are incorporating medical marijuana into their wellness ... Arizona. , As operators of two successful Valley dispensaries, The Giving Tree’s two ...
(Date:10/7/2017)... , Oct. 6, 2017  The 2017 Nobel ... three scientists, Jacques Dubochet, Joachim Frank ... in cryo-electron microscopy (cryo-EM) have helped ... the structural biology community. The winners worked with ... now routinely produce highly resolved, three-dimensional images of ...
Breaking Biology Technology: