I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEEQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More

Comment Environment, Health, Safety & Security

This new membrane bioreactor cuts energy costs and boosts throughput

By Gerald Parkinson |

GE Power & Water (Trevose, Penn.; ge.com) has introduced an improved membrane bioreactor (mbr) technology whose productivity is said to be 15% higher than that of its predecessor for wastewater treatment plants. The new system, called LEAPmbr, was derived from innovations to GE’s ZeeWeed 500 mbr. Glenn Vicevic, senior manager, Engineered Systems, says the system has been tested on a commercial scale at three of its customers’ plants and has demonstrated several improvements in addition to higher productivity. These include a 30% reduction in membrane energy costs, a 50% reduction in membrane aeration equipment and controls, and a 20% smaller footprint. The system consists of rectangular cassettes of PVDF hollow-fiber membranes, immersed in a bioreactor in which bacteria break down pollutants. A pump draws treated water through the membranes, while solids, bacteria and colloidal material are retained in the tank. An improved aeration method for cleaning the membranes was the key element in lowering energy costs, says Vicevic. “The conventional wisdom is that there should be a continuous air scour of the membranes,” he says, “but over the last decade, we experimented with bubble-size-diffuser design…
Related Content
Addressing climate change
In a report 1 issued by the American Council for an Energy-Efficient Economy (ACEEE; www.aceee.org), one of the key summary…
Bacteria for wastewater treatment
Researchers from the National University of Singapore (www.nus.edu.sg), led by associate professor He Jianzhong, have found a new strain of…

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
Steel Belt Units for Medical Membranes
Upstream Oil & Gas: Automation intelligence from wellhead to distribution
Video - CoriolisMaster
Video - Do you really need a thermowell?
The influence of IIoT in the dewatering process step of pigment production

View More