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:6/23/2020)... ... June 23, 2020 , ... ... today announced that the company has received ISO9001:2015 certification for the development ... research industries. The decision to pursue ISO9001 accreditation demonstrates Kemp’s commitment to ...
(Date:6/19/2020)... ... ... The director of stem cell biotechnology company Asymmetrex , Dr. James L. Sherley, ... easier access to stem cell counting, they will soon make it a routine part ... in the U.S., Asymmetrex is offering free tissue stem cell counting at its ...
(Date:6/11/2020)... ... June 09, 2020 , ... Superior Controls, Inc. , an E Technologies ... for the life sciences industry, is pleased to announce the recent hiring of Ray ... company’s Seabrook, New Hampshire office. In his new role, Boudreau will use his ...
Breaking Biology News(10 mins):
(Date:6/28/2020)... ... 25, 2020 , ... The Indoor Lab, a leading provider of sensor solutions ... all types to ensure cleanliness, distancing and occupancy with its patent pending WipeAway™ technology ... business will provide a health performance index system that scores all aspects of compliance ...
(Date:6/23/2020)... ... June 23, 2020 , ... ... to unique lab-made bioresearch materials, today announced the availability of the Delta-G-VSV Pseudotyping ... at University of Tennessee, enables studies of SARS-CoV-2 viral entry and COVID-19 vaccine ...
(Date:6/23/2020)... ... June 23, 2020 , ... Nobilis Therapeutics, a biopharmaceutical company ... filed an Investigational New Drug application (IND) with the U.S. Food & Drug ... candidate NBTX-001 in patients with panic disorder (PD). , "Adding a PD trial ...
(Date:6/11/2020)... ... 09, 2020 , ... TRX Systems, developer of NEON® Indoor ... a highly accurate, contact tracing solution for identification of employees who may have ... disease control measure, is a key strategy for preventing further spread of COVID-19. ...
Breaking Biology Technology:
Cached News: