I D
× COMMENTARYEDITOR'S PAGECOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineChementator Briefs
Nanofiltration Toray Industries, Inc. (Tokyo, Japan; www.toray.com) has created what…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEEQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More SHOW PREVIEWS

Comment Water Treatment

Using bromine to make renewable hydrogen from biowaste

By Gerald Ondrey |

A process that produces renewable hydrogen from organic biowaste and reduces the economic and environmental burden of wastewater treatment is being developed by Chemergy, Inc. (Miami Fla.; www.chemergy.com). Introduced at last month’s AIChE Spring Meeting (April 22–26; Orlando, Fla.), Chemergy’s HyBrTec technology offers an alternative method for processing sewage, manure, wood and agricultural residues, paper, plastics and municipal solid waste. Depending on the feedstock, the process can recover up to 420 lb of H2 per dry ton of biowaste, says CEO Robin Parker. HyBrTec utilizes two established steps (diagram) that are scalable to tons per minute with commercially available equipment, says Parker. First, cellulosic biowaste and wastewater are oxidized with bromine to produce HBr, CO2 and heat. The HBr reacts with unreacted water, forming concentrated hydrobromic acid (HBraq). The HBraq is then electrolyzed into H2 and recyclable Br2 reagent. renewable hydrogen[/caption] The heat released in the bromination step is recovered and used to concentrate the water content of the feedstock to 50 vol.%. Electro-osmotic water transfer from the Br2 anode to the H2 cathode produces 4–6 gal of potable water per kilogram of H2 and increases…
Related Content
Show Preview: Weftec 2019
The 92nd annual Water Environment Federation Technical Exhibition and Conference (Weftec; www.weftec.org) will be held September 21–25 at the McCormick…
Addressing water scarcity
The threat of water scarcity may not be a top concern for those who have readily available freshwater to meet…
Removing PFAS from wastewater
A new low-cost, safe and environmentally friendly method for removing polyfluorinated alkyl substances (PFAS) from water has been developed by…

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
How separation processes profit from Industrial Internet of Things (IIoT) solutions
Up to 80% increased production rates in plastic recycling
Higher throughput and purity in sodium bicarbonate production with up to 15% less energy consumption
Help feeding nations with chemical filtering technologies
Not at the forefront of Industry 4.0?

View More

Live chat by BoldChat