I D
× COMMENTARY
Digitalization Game ChangersGame Changers
The technologies associated with the Industrial Internet of Things, and…
COVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineChementator Briefs
ANG fueling station Ingevity (North Charleston, S.C.; www.ingevity.com) has completed…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILESOLIDS PROCESSINGEQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More SHOW PREVIEWS

Comment Water Treatment

Selective removal of micropollutants

By Paul Grad |

Micropollutants, such as antibiotics and flame retardants, can pose a health threat to animals and humans, even in tiny concentrations. Current methods to remove micropollutants from the environment include adsorption onto powdered activated carbon, which is then separated from the wastewater and burned. This process can be costly because the organic matter present in the wastewater is also adsorbed onto the powder, and a lot of the activated carbon is consumed in the treatment process. Another method, ozone treatment, breaks down the micropollutants through oxidation, but this can produce harmful byproducts such as formaldehyde. To avoid those pitfalls, scientists from Dalian University of Technology (Dalian, China; www.dlut.edu.cn) developed a two-step method to target those micropollutants. In the first step, insoluble polymers made of cyclodextrins cross-linked with epichlorohydrin are used as adsorbents. Cyclodextrins, derived from starch, selectively trap small hydrophobic organic compounds. The doughnut-shaped cyclodextrins have a hydrophobic cavity than can encapsulate micropollutants while excluding the larger organic matter that can clog the activated carbon. In the second step, potassium permanganate is used to degrade the…
Related Content
Microbial Control in Cooling Water
Three chlorine-based strategies for controlling microbial load in industrial cooling water are evaluated here Industrial cooling-water systems are critical to…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Reduce Explosion Risk in 2 Seconds with In Situ Oxygen Analysis
Tunable Diode Laser Spectroscopy in Critical Applications
Non-Contacting Gas Sensors Minimize the Risk of Corrosion to Plant Equipment.
5 ways to Optimize Production of Polymers and Intermediate Petrochemicals
7 Ways to Achieve Process Safety in Chemical Production

View More

Live chat by BoldChat