They can provide 10 or more gallons of drinking water a day. A reverse osmosis system costs from $150 to $300, plus $100 to $200 annually for replacement filters. Reverse-osmosis filters remove ...

Wan Yinhua from the Institute of Process Engineering (IPE) of the Chinese Academy of Sciences has developed a dual-functional reverse osmosis (RO) membrane with enhanced antibacterial and ...

The new technique uses a physics-based tapered flow channel design within electrodes that moves fluids quickly and efficiently, potentially requiring less energy than reverse osmosis techniques ...