Navigation Links
Simple approach could clean up oil remaining from Exxon Valdez spill
Date:9/29/2010

Traces of crude oil that linger on the shores of Alaska's Prince William Sound after the Exxon Valdez oil spill remain highly biodegradable, despite almost 20 years of weathering and decomposition, scientists are reporting in a new study. Their findings, which appear in ACS' semi-monthly journal Environmental Science & Technology, suggest a simple approach for further cleaning up remaining traces of the Exxon Valdez spill the largest in U.S. waters until the 2010 Deepwater Horizon episode.

Albert D. Venosa and colleagues note that bacteria, evaporation, sunlight, and other items in Mother's Nature's clean-up kit work together to break down the oil and make it disappear. Scientists have known for years that adding nitrogen and phosphorus fertilizer to oil-contaminated soil can speed the growth of bacteria that decompose, or biodegrade, oil. But it has been uncertain whether oil that has lingered in the environment for almost 20 years still is biodegradable, leaving questions on whether further clean-up efforts might be worthwhile.

The scientists collected oil-contaminated soil from different beaches in Prince William Sound and treated the samples with phosphorus and nitrogen fertilizer in the presence of excess oxygen from the air. Oil in the fertilized samples biodegraded up to twice as fast as oil in the unfertilized control samples, but significant biodegradation occurred even in the unfertilized controls. The results showed that oxygen supply was the major bottleneck, or limiting factor, in the field that prevented further decomposition of the oil. The scientists used data from the research to postulate a simple treatment scheme that would involve applying simple nitrate salts to possibly break down the natural organic matter in the sediment. That would cause an increase in sediment porosity that would allow dissolved oxygen in seawater to penetrate to the oiled zone and create oxygen-rich conditions that might stimulate more rapid
'/>"/>

Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society
Source:Eurekalert

Page: 1 2

Related biology news :

1. Caltech chemists develop simple technique to visualize atomic-scale structures
2. Health diagnosis made simpler
3. The secret of life may be as simple as what happens between the sheets -- mica sheets
4. Research develops simple recipe for fungus-free horseradish
5. Study finds that simple 2-question survey can better identify hungry children
6. Cheap, simple, noninvasive blood test may replace invasive diagnostic techniques in early pregnancy
7. New study documents use of hormone progesterone in simple microscopic aquatic animals
8. Pitt researcher says simple polymer-based filter successfully cleans water, recovers oil in Gulf of Mexico tests
9. Coral transplantation the simple and cheap solution to reef restoration
10. Sari cloth a simple sustainable protector from cholera
11. Transportation governed by simple rules
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/31/2014)... is developing drugs that are highly effective against a ... patient. Such properties are directly related to the 3D ... have a shape that is perfectly complementary to a ... specificity. Publishing in Nature Chemistry , EPFL scientists ... the 3D structure of bioactive peptides and enhance their ...
(Date:8/31/2014)... is available in French . ... just published in the prestigious Nature Neuroscience journal ... Centre of the Douglas Mental Health University Institute and McGill ... circuitry and dynamic mechanisms controlling memory as well of the ... sub-region named the subiculum. , In 2009, they developed ...
(Date:8/29/2014)... how the repeated climatic shifts over the last ... genetic diversity, a team of researchers led by ... Carnaval developed a new biodiversity metric called "phylogeographic ... the genetic variation within species is restricted in ... of biology, and 14 other researchers from institutions ...
Breaking Biology News(10 mins):A new synthetic amino acid for an emerging class of drugs 2A new synthetic amino acid for an emerging class of drugs 3Memory and Alzheimer's: Towards a better comprehension of the dynamic mechanisms 2CCNY team defines new biodiversity metric 2
... published recently in PLoS One delivers new insight ... rattlesnakes may be engaged in an arms race with opossums, ... long been known to eat venomous snakes, this fact has ... of snake venom. Instead, snake venom is usually seen as ...
... see if you can spot the tallest tree. If you,re in ... there are few and far between, and tend to hunch low ... forests make the exercise a bit more difficult. And in the ... the eye can estimate. Knowing how tall trees can grow ...
... the University of Michigan Comprehensive Cancer Center have found that ... encouraging cancer stem cells to grow. Cancer stem cells ... drive its growth and spread. Traditional cancer treatments do not ... In a study published online in the Journal ...
Cached Biology News:Rapid venom evolution in pit vipers may be defensive 2Rapid venom evolution in pit vipers may be defensive 3MIT: The tallest tree in the land 2MIT: The tallest tree in the land 3Cancer stem cells recruit normal stem cells to fuel ovarian cancer, U-M study finds 2
(Date:9/2/2014)... Australia (PRWEB) September 02, 2014 The ... a cure for chronic tinnitus are seeking support for ... on the Indiegogo platform ( http://igg.me/at/tinaway ), was launched ... be a therapeutic ‘mHealth’ app and is based on ... of a team of biomedical and software engineers, Dr. ...
(Date:8/31/2014)... September 01, 2014 Available spectra ... needs for research and cultivation of a wide ... Valoya’s proprietary LEDs with proven patented and pending ... uncompromised light uniformity in critical applications in contrast ... LEDs. , “Our customers have a large variety ...
(Date:8/29/2014)... Electronic circuits are based on electrons, but one of ... photonic circuits, i.e. circuits based on light (photons) instead ... to create a stream of single photons and control ... sorts of attempts to achieve this control, but now ... creating a steady stream of photons emitted one at ...
(Date:8/29/2014)... Local veterinarian, Dr. Keith Clement, and his ... to participate in an investigational study of donor stem ... of this study is to determine if a single ... arthritically affected joints can help reduce pain and inflammation ... current investigational study must be older than nine months, ...
Breaking Biology Technology:tinAway Pty. Ltd. launch a crowdfunding campaign to fund a clinical trial of tinAway, a new potential cure for chronic tinnitus 2tinAway Pty. Ltd. launch a crowdfunding campaign to fund a clinical trial of tinAway, a new potential cure for chronic tinnitus 3tinAway Pty. Ltd. launch a crowdfunding campaign to fund a clinical trial of tinAway, a new potential cure for chronic tinnitus 4tinAway Pty. Ltd. launch a crowdfunding campaign to fund a clinical trial of tinAway, a new potential cure for chronic tinnitus 5Breakthrough in light sources for new quantum technology 2Burnt Hills Veterinary Hospital Seeks Candidates for an Investigational Study of Stem Cells for Dogs with Arthritis 2
... Therapeutics S.A.,(Alternext: ALEHT), a drug and diagnostic discovery ... the annual shareholders, meeting of the Company, that ... de Vezin,s appointment as,member of the Supervisory Board, ... has reached the age limit defined in the ...
... 29 ,Anesiva, Inc. (Nasdaq: ANSV ) today ... with Green Vision Company, for,several Middle Eastern countries. ... approved in the U.S. to,provide topical local analgesia ... children three to 18 years of age., ...
... barrier technology from Singapore A*STARs Institute of Materials ... organic light emitting diodes (OLEDs) and solar cells ... other technology available in the market, opening up ... , A team of scientists from Singapores Institute ...
Cached Biology Technology:Frederic Desdouits Appointed Member of the Supervisory Board of ExonHit Therapeutics 2Frederic Desdouits Appointed Member of the Supervisory Board of ExonHit Therapeutics 3Anesiva Announces New Zingo Marketing and Distribution Agreement 2Anesiva Announces New Zingo Marketing and Distribution Agreement 3Nanoengineered barrier invented to protect plastic electronics from water degradation 2Nanoengineered barrier invented to protect plastic electronics from water degradation 3Nanoengineered barrier invented to protect plastic electronics from water degradation 4Nanoengineered barrier invented to protect plastic electronics from water degradation 5
... matrix for the extraction of unwanted ... other macromolecules, Applications: ,Reducing octyl glucoside ... interaction of pure β-adrenergic receptor and ... SDS in 6 M urea/0.05 mM ...
Values of steady state parameters for enzyme activities are determined....
... be used for the identification of potential biomarkers ... and other diseases. Due to the fact that ... it provides an attractive alternative to blood plasma ... ProteoSpin Urine Protein Concentration Micro Kit provides ...
... Antibody Capture Kit eliminates ... optimization steps typically required ... This kit enables the ... multiple antigens based on ...
Biology Products: