HOME >> BIOLOGY >> NEWS
Synthetic clay could assist radioactive waste cleanup

Researchers from Pennsylvania State University supported by the National Science Foundation (NSF) have performed an important step in the drive to remove environmentally harmful materials from waste streams and drinking water.

A team led by Sridhar Komarneni, professor of clay mineralogy demonstrated that a synthetic clay known as a swelling mica has the ability to separate ions of radium, a radioactive metal, from water. The scientists report their results in the April 12 issue of Nature.

The finding could have implications for radioactive and hazardous waste disposal, particularly in the cleanup of mill tailings left over from the processing of uranium for the nation's nuclear industry. The tailings contain radium and heavy metals that can leach into groundwater and contaminate drinking water supplies.

"This result represents significant progress in developing new ion-separation materials," said Thomas Chapman, manager of NSF's program for separations and purification processes, which funded the research. "With more development, the swelling micas should prove useful in both waste remediation and metals recovery."

The swelling mica tested by Komarneni's team, known as Na4, is one of a group of clays not found in the natural environment. Created specifically for water treatment purposes, swelling micas expand as they absorb metal ions and then, reaching their capacity, collapse and seal the contaminants inside. The swelling micas are being explored for potential use in separating ions of heavy metals such as lead, zinc and copper as well as other radioactive materials, including strontium, from waste streams. Because they trap the ions, the micas can permanently immobilize the pollutants. They could prove useful for the recovery and recycling of valuable metals as well.

Komarneni has used x-ray diffraction and nuclear magnetic resonance spectroscopy to evaluate the chemical properties of this new
'"/>

Contact: Amber Jones
aljones@nsf.gov
703-292-8070
National Science Foundation
10-Apr-2001


Page: 1 2

Related biology news :

1. Synthetic hormone used in contraceptives and HRT produces negative effects in monkey studies
2. Synthetic antifreeze could prevent ice growth
3. New Class Of Synthetic Capsules That Mimic Biological Cells Has Wide Array Of Potential Uses
4. Synthetic Lock Binds Some Molecules, Excludes Others
5. A Synthetic Peptide Destroys Brain Plaque Implicated in Alzheimers Disease
6. Cellular Engineers Design Custom Cell Surfaces Able To Adhere To Synthetic Materials
7. Synthetic Vitamin E And Natural Vitamin E Are Equally Powerful Antioxidents
8. Landmark agreement between Samoa and UC Berkeley could help search for AIDS cure
9. Circulation of disaster myths in Haiti could hinder appropriate disposal of bodies
10. New study indicates arsenic could be suitable as first-line treatment in type of leukaemia
11. Marijuana use could cause tubal pregnancies

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


(Date:8/26/2020)... ... August 25, 2020 , ... Catalent, the leading ... cell and gene therapies, and consumer health products, today announced that two Catalent ... & Expo, taking place between Aug. 31 – September 4, 2020. , On ...
(Date:8/23/2020)... WOODLANDS, Texas (PRWEB) , ... August 21, 2020 ... ... from Rigaku Corporation has been published and is now available on ... single crystal X-ray diffraction—serves the X-ray analysis community, presenting current news and crystallographic ...
(Date:8/21/2020)... ... August 19, 2020 , ... “How can ... businesses dedicated to Salivary Bioscience for more than twenty years. Together with Douglas ... Springer, " Salivary Bioscience: Foundations of Interdisciplinary Saliva Research and Applications ," and ...
Breaking Biology News(10 mins):
(Date:8/12/2020)... (PRWEB) , ... August 11, 2020 , ... ... a year to expand the Facioscapulohumeral Muscular Dystrophy Clinical Trial Research Network ... 2021 and 2022. The network is a consortium of academic research centers in ...
(Date:8/3/2020)... ... August 03, 2020 , ... Introducing Ardent Animal Health – MediVet Biologics ... , Known as MediVet Biologics since its formation in 2016, the company ... Ardent Animal Health will build on its base of innovative therapies for osteoarthritis and ...
(Date:7/31/2020)... SOMERSET, N.J (PRWEB) , ... July 29, 2020 ... ... editing company, and Catalent, the leading global provider of advanced delivery technologies, development, ... products, today announced that they have entered into a strategic partnership whereby Catalent ...
(Date:7/18/2020)... ... ... After research model surgery and catheter implantation, the long journey of catheter maintenance and ... successful study, while protecting and accessing the catheter or device post-surgery is often undervalued ... Envigo in a live webinar on Wednesday, August 5, 2020 at ...
Breaking Biology Technology:
Cached News: