HOME >> BIOLOGY >> NEWS
Water filtration technique removes dangerous freshwater algae toxins

COLUMBUS , Ohio -- A water filtration technique that normally cleans up agricultural chemicals is also effective at removing a toxin secreted by algae found in lakes and rivers, an Ohio State University study has found.

Engineers here determined that the technique greatly outperformed other methods by removing at least 95 percent of a toxin secreted by Microcystis, a blue-green algae.

Some water filtration plants around the country already use the technique, which couples activated carbon with membrane filters, said Hal Walker, associate professor of civil and environmental engineering and geodetic science at Ohio State .

Microcystis is native to freshwater lakes and rivers around the country, and secretes toxins that can cause liver damage in animals including humans. Worsening environmental pollution in Lake Erie during the last decade has caused algal blooms, the most recent of which began this August.

Some 13 million people rely on Lake Erie for their water supply, so Microcystis is a growing concern there, Walker said. But dangerous algal blooms have occurred across the country this summer, from Massachusetts to California .

And while many water filtration plants are beginning to use high-tech ultrafiltration membranes with very fine holes to filter water, Microcystin toxins are small enough to slip through. For example, the toxin used in this study was microcystin-lr, a tiny molecule made up of only seven amino acids.

The study will appear in the journal Environmental Science & Technology, and has been published in advance on the journal's Web site.

Rather than invent a new technology for filtering microcystin-lr, Walker and his colleagues decided to test whether combining activated carbon with membrane filters would do the trick. That technology has already proven effective for removing herbicides and pesticides from drinking water.

"This toxin is an organic molecule, and we kn
'"/>

Contact: Hal Walker
Walker.455@osu.edu
614-292-8263
Ohio State University
23-Aug-2006


Page: 1 2

Related biology news :

1. Waters off Washington state only second place in world where glass sponge reefs found
2. Pioneering approach to wastewater treatment earns Stanford engineer the 2007 Stockholm Water Prize
3. Water theory is watertight, researchers say
4. Water Treatment and Reuse -- II
5. NJIT professor to address Water Industry Conference At Harvard Club about desalinating water
6. Caltechs Emmanuel Candes to receive $500,000 Waterman Award
7. Water management in cells
8. Water quality a major focus of $14 million grant to the University of Arizona
9. Water and the environment
10. Water research initiatives at UW-Madison
11. National Academy news: Water quality improvement in southwestern Pennsylvania

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


(Date:11/7/2019)... ... November 07, 2019 , ... R3 Stem Cell is now offering its ... of 2019. The code to use during checkout is FIFTYOFF and applies to both ... nation’s leader in regenerative therapies with over 12,000 successful stem cell procedures performed nationwide. ...
(Date:11/5/2019)... ... 05, 2019 , ... Catalent, the leading global provider of ... consumer health products, today announced it will present at the upcoming World Orphan ... – 14, 2019. , On Wednesday, Nov. 13 at 3:20 p.m., Philip Wills, ...
(Date:10/30/2019)... CUMBERLAND FORESIDE, Maine (PRWEB) , ... October 29, ... ... UC4 linearity and calibration verification kits, for SIEMENS ATELLICA® analyzers, Order Numbers 701sa ... GLU, K, MG, NA, PHOS, UA, UTP, and UUN. , Each VALIDATE® kit, ...
Breaking Biology News(10 mins):
(Date:11/19/2019)... ... November 19, 2019 , ... Supercomputing Conference – Cirrascale ... for Autonomous Vehicle , Medical Imaging, and Natural Language Processing (NLP) workflows, ... Graphcore Poplar® software stack as part of its bare-metal cloud service offerings. In ...
(Date:11/12/2019)... ... 12, 2019 , ... Fiberstar, Inc., a global market leader ... a new innovative website. , After extensive research, Fiberstar revamped the ... updated ingredient usage tables by food application and video tutorials. And, this site ...
(Date:11/9/2019)... BOSTON (PRWEB) , ... November ... ... provider of artificial intelligence (AI)-powered technology for use in pathology research, today ... in liver biopsy samples from patients enrolled in the phase 3 selonsertib ...
(Date:11/5/2019)... N.J. (PRWEB) , ... November ... ... global provider of advanced delivery technologies, development, and manufacturing solutions for drugs, ... its next-generation cell line development technology, GPEx® Boost. The technology enhances Catalent’s ...
Breaking Biology Technology:
Cached News: