HOME >> BIOLOGY >> NEWS
'Shock Therapy' Exceeds Expectations In Cleaning Up Contaminated Soils

Cost-Effective Approach Has Potential For Wide Use

Researchers have removed up to 99 percent of trichloroethylene from contaminated soil during the first field tests of an innovative remediation method called Lasagna™ buried in the ground.

Trichloroethylene is used for cleaning and degreasing metal, in the production of rubber and plastics, in dry cleaning processes and in household solvents. It has been associated with a possible increased risk of cancer in people.

The tests exceeded the researchers' expectations for remediation of the soil, according to two related research articles in the April 1 print edition of the peer-reviewed journal Environmental Science & Technology, published by the American Chemical Society, the world's largest scientific society.

Scientists from Monsanto, General Electric and DuPont describe the Lasagna technology as "very successful" and claim it is cost-effective in cleaning up trichloroethylene-contaminated soil in place. The research was initially published on the journal's web site Feb. 25.

Called "lasagna" because of the layered placement of 'treatment zones' within the buried electrodes, "the technology utilizes an electrical current to drive contaminants from soil into in situ treatment zones for destruction," says the report's lead author, Sa V. Ho, Ph.D., of the Monsanto Company in St. Louis, Mo. Doing the treatment in place, rather than moving it to a central remediation site, means "the technology has minimal disturbance to the environment, generates no waste, can be cost-effective and has the potential for wide application," he claims.

Applying electricity to the electrodes, which were buried up to 45 feet deep in the larger of two field tests that were conducted, causes water in the soil to move toward the electrodes and into the treatment zones where iron filings mixed with clay destroy (dechlorinate) the trichloroethylene carried by the water. All the materials u
'"/>

Contact: Charmayne Marsh
y_marsh@acs.org
202-872-4445
American Chemical Society
31-Mar-1999


Page: 1 2

Related biology news :

1. DOE Joint Human Genome Effort Exceeds Sequencing Goal
2. Cleaning up contaminated soil, groundwater
3. Chemists Discover New Processes In Fuel-Cleaning Catalysis
4. New Chemical Processing Technique Being Studied At UW May Hold Key To CleaningUp Hanford, Reducing Industrial Waste
5. Argonne Researchers Develops Simple, Inexpensive Method For Cleaning Industrial Waste Streams
6. Photocatalytic Air Cleaning System Promises To Help Allergy Sufferers
7. Can Contaminated Aquifers Restore Themselves?
8. Agronomy, Crops and Soils Annual Meetings papers, symposia searchable online

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/3/2020)... ... August 03, 2020 , ... Accumen Inc. ... with medical equipment manufacturer, Spectrum Solutions, to provide COVID-19 saliva testing kits nationally. ... supply chain for more than 10 years. Early in the COVID-19 crisis, we ...
(Date:7/18/2020)... ... July 17, 2020 , ... Commercial launch readiness is a critical ... discover a COVID cure or vaccine, the global economic downturn will only increase price ... not going away and capturing full value from every product launch is critical. However, ...
(Date:7/2/2020)... (PRWEB) , ... July 02, ... ... Biology Systems, B.V. (MBS) has announced a publication detailing the use of ... reverse transcription polymerase chain reaction (RT-PCR) in 16 minutes. The article, titled ...
Breaking Biology News(10 mins):
(Date:7/18/2020)... ... July 17, 2020 , ... dicentra , a leading ... food industries, is pleased to announce that Charles Galea has joined its clinical ... Charles is an accomplished and results-driven sales executive with over 10 years of ...
(Date:7/10/2020)... , ... July 09, 2020 ... ... company, announced today that Massachusetts Institute of Technology (MIT) has expanded the ... license allows PathSensors to move into the point-of-care diagnostic market, focusing initially ...
(Date:7/10/2020)... ... July 09, 2020 , ... ... today announced the hiring of Allen R. Nissenson, M.D., F.A.C.P., as its Chief ... clinical development of Sentien’s lead product, SBI-101. Dr. Nissenson serves as an ...
(Date:7/7/2020)... ... , ... Bio-IT World has announced the winners of the ... of Chicago, Massachusetts General Hospital, Mission: Cure, and the Pistoia Alliance were honored. ... examples of how technology innovations and strategic initiatives can be powerful forces for ...
Breaking Biology Technology:
Cached News: