Engineers Use Seeds that Could Clean Water

Monday, June 18, 2018 - 15:46

Researchers from Carnegie Mellon University's Biomedical Engineering and Chemical Engineering recently co-authored a paper with Ph.D. students, using sand and plant materials readily available in many developing nations to create a cheap and effective water filtration medium, termed "f-sand."

Carnegie Mellon University's Biomedical Engineering and Chemical Engineering Professors Bob Tilton and Todd Przybycien recently co-authored a paper with Ph.D. students Brittany Nordmark and Toni Bechtel, and alumnus John Riley, further refining a process that could soon help provide clean water to many in water-scarce regions, phys.org reports.

The process, created by Tilton's former student and co-author Stephanie Velegol, uses sand and plant materials readily available in many developing nations to create a cheap and effective water filtration medium, termed "f-sand."

"F-sand" uses proteins from the Moringa oleifera plant, a tree native to India that grows well in tropical and subtropical climates. The tree is cultivated for food and natural oils, and the seeds are already used for a type of rudimentary water purification. However, this traditional means of purification leaves behind high amounts of dissolved organic carbon (DOC) from the seeds, allowing bacteria to regrow after just 24 hours. This leaves only a short window in which the water is drinkable.

Velegol, who is now a professor of chemical engineering at Penn State University, had the idea to combine this method of water purification with sand filtration methods, common in developing areas. By extracting the seed proteins and adsorbing (adhering) them to the surface of silica particles, the principal component of sand, she created f-sand. F-sand both kills microorganisms and reduces turbidity, adhering to particulate and organic matter. These undesirable contaminants and DOC can then be washed out, leaving the water clean for longer, and the f-sand ready for reuse.

To get more information please refer to: Brittany A. Nordmark et al. Moringa oleifera Seed Protein Adsorption to Silica: Effects of Water Hardness, Fractionation, and Fatty Acid Extraction, Langmuir (2018). DOI: 10.1021/acs.langmuir.8b00191

Related News

Maragheh IAU Researcher Studies On The Performance of Solar Still System For Sustainable Water

1397/7/24 14:28

S & R IAU Student Presents New Method of Nitrate Removal From Water

1397/7/10 15:44

Researchers Create Smartphone System That Can Detect Lead in Tap Water

1397/7/9 15:51

Researchers Develop Special Sand Making Stormwater Drinkable

1397/6/10 10:20

Scientists Are Developing a Device to Harvest Up to 10 Gallons of Drinking Water Per Hour From Thin Air

1397/6/5 16:37

Austria, Iran to Coop Academically In Managing Water Crisis

1397/5/23 13:12

Shiraz University Researchers Develop A Device That Can Produce Water Out Of Air

1397/5/20 10:28

Some Technologies That Produce Clean Drinking Water

1397/4/30 09:37

Researchers Claim Graphene Could be Key to Controlling Water Evaporation

1397/4/23 08:38

Iranian Researcher Presents a Method For Identifying Water Behavior

1397/4/12 15:07

Dr. Rahbar: IAU Branches Urgent Duty is to Supply Water for Abadan and Khorramshahr

1397/4/12 10:08

Iranian Researcher Creates Grey Water Treatment System

1397/4/5 12:58

Scientists Find Out About Water Weird Behavior at Extreme Pressures and Temps

1397/4/4 13:21

Iranian Researchers Prevent Heavy Metals Release Into Groundwater Aquifer

1397/4/2 14:31

Scientists Develop World's Fastest Water Heater

1397/2/29 12:50

China Developing the Biggest Artificial Rain Experiment Ever

1397/2/10 10:56

This New Device Purifies Water Using Sunlight and Hydrogels

1397/1/21 12:59

MIT Researchers Develop Device Harvests Water From Desert Air

1397/1/5 13:48

Sufian IAU Student Designs Smart Deice Growing Plants

1396/12/27 10:59

Sabzeh, Symbol of Livelihood

1396/12/22 10:52

Iranian Researcher Applies Carbon Fiber Waste to Improve Water-Draining Concrete

1396/12/13 14:38

Iran to Restrict Cultivation of Crops Amid Water Shortage

1396/11/28 15:00

Researchers Discover New Solution to Filter Salt and Metal Ions from Water

1396/11/21 14:29

S & R IAU Researcher Treats Water Through Removing Aromatic Pollutants

1396/11/11 13:17

Iran Secured the 1st Place in Energy Globe World Awards 2017

1396/10/30 12:54

Yazd, Winner of 2017 Global Energy Award

1396/10/26 14:44

Cape Town, The First Major City in the World to Run out of Water

1396/10/23 16:00

Mojen, Fountain of Seven Colors

1396/10/18 10:11

S & R IAU Researcher Creates Nanoparticle Removing Carcinogens from Water

1396/10/9 11:10

IAU Defeats South Korea at the 11th Asian Water Polo Clubs C’ship

1396/8/20 15:00

Saholan Cave, Iran’s Second Largest Water Cave

1396/7/24 16:12

IAU Faculty Member Shines in 23rd ICID Congress & 68th IEC Meeting

1396/7/22 12:56

Pardis IAU Graduates Make Oil–Water Separator Device

1396/3/6 23:22

Najafabad IAU Student Invents Environment-Friendly Liquid for Purifying Water and Sewage

1395/11/20 14:55

Opinions


Popular News

Latest News