Environmental Engineers Demonstrate Effective Method For Trapping Highway Pollutants

Cincinnati -- Researchers in the University of Cincinnati College of Engineering have shown that a modified filtration system along interstate highways can prevent heavy metals from polluting nearby water supplies.

The system, known as a partial exfiltration trench (PET), was designed and built by research assistant professor John Sansalone as part of his doctoral research in the department of civil and environmental engineering at UC. The PET replaces the normal sand used in highway storm drainage systems with an iron oxide coated sand. That makes the sand signficantly more effective at trapping heavy metals such as cadmium, copper, lead and zinc.

"Polluted water flows in, and clean water flows out," explained Steven Buchberger, associate professor of environmental engineering and Sansalone's thesis adviser.

Sansalone presented data from a year-long field test during the recent World Congress of the International Association for Hydraulic Research (IAHR) in San Francisco. A prototype PET system was installed along a stretch of Interstate 75 near downtown Cincinnati. It is the second busiest stretch of interstate highway in the state of Ohio.

The effectiveness of the PET system varied for each specific metal, but the overall trapping efficiencies ranged from 82 to 97 percent. The PET even holds up well during heavy rainstorms. The system can handle up to one inch of rain per hour. That's when Sansalone discovered a side benefit to his novel system.

"The PET not only works as a water quality device, but it can act like a water quantity control device to reduce surface flooding," said Sansalone. That discovery was completely unexpected in the Cincinnati area where clay soils are common.

Sansalone will continue his research by looking at ways to make the system more economical and efficient. It took ten tons of coated sand to treat 20 meters of highway during the field test, so Sans

Contact: Chris Curran
University of Cincinnati

Page: 1 2

Related biology news :

1. Environmental issues center of Inland Northwest Research Alliance 4th Annual Symposium
2. Environmental decontamination, greenhouse gases, and the genome of a methane-loving bacterium
3. Environmental costs of home construction lower with wise choice, reuse of building materials
4. NIH funds Breast Cancer and the Environmental Research Center at Fox Chase Cancer Center
5. UCR graduate student wins best poster at Environmental Mutagen Society Meeting
6. Jane Goodall to receive 2003 Global Environmental Citizen Award
7. Jane Goodall to receive 2003 Environmental Citizen Award
8. Environmental influences play significant role on experiments
9. Environmental enrichment reverses learning impairments caused by lead poisoning
10. School of public health launches CDC Center for Excellence in Environmental Public Health Tracking
11. Brookhaven Lab scientist wins Environmental Mutagen Society Award

Post Your Comments:

(Date:8/23/2020)... ... August 21, 2020 , ... The August ... published and is now available on the company’s global website. Crystallography Times—an electronic ... community, presenting current news and crystallographic research. , The latest issue of ...
(Date:8/21/2020)... ... August 19, 2020 , ... “How can we help?”, ... to Salivary Bioscience for more than twenty years. Together with Douglas Granger, Ph.D., ... Salivary Bioscience: Foundations of Interdisciplinary Saliva Research and Applications ," and Steven Granger, ...
(Date:8/21/2020)... Rochelle, Virginia (PRWEB) , ... August 20, 2020 ... ... announced today that Hassan Movahhed , a Clinical Operations executive with expertise ... CRO management, has joined the firm as an Expert Consultant. Throughout his career, ...
Breaking Biology News(10 mins):
(Date:7/31/2020)... ... July 29, 2020 , ... Diversified ... systems that can be configured to drive Klystrons, TWTs, IOTs, and magnetrons. , ... one or two switches in a push-pull configuration; yielding fast fall time for ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... the top radiation centers in 16 countries, has reached its 20th anniversary of ... now in routine use at top universities including University of Pennsylvania, University of ...
(Date:7/18/2020)... ... July 16, 2020 , ... “We are thrilled to deliver this new technology ... technology of its kind on the market and we were pleased that the IFT ... of traditional cultured ingredients, creating a natural way to extend the shelf life and ...
(Date:7/10/2020)... ... July 09, 2020 , ... ... Technology (MIT) has expanded the company’s exclusive license to include clinical applications ... point-of-care diagnostic market, focusing initially on the SARS-CoV-2 biosensor. CANARY’s™ fast ...
Breaking Biology Technology:
Cached News: