Water Technologies

Heat powered water pump for reverse osmosis desalination

Glushenkov M., Bhosale R., Kumar A., AlMomani F., Kronberg A., Qatar University, QA

Reverse osmosis (RO) is one of the most widely employed technologies for water desalination. A drawback of this technology is high consumption of electricity by electric motors used for high-pressure water pumping. Energy consumption can [...]

A Novel Technology for Removal/Recovery of Toxic Heavy Metal

Acey R.A., Jordaan G.R., Nguyen H., Nguyen P.H., Nguyen H., Nguyen P.H., MGP Biotechnologies,LLC, US

We have developed a novel technology for the removal/recovery of heavy metal from aqueous and organic solvents. The patented technology is based on a low molecular weight protein known as metallothionein (MT). The protein has [...]

Engineered Nanoparticles in the Environment: Their Fate, Transport and Interaction with Organic Pollutants

Sahle-Demessie E., Zhao A., Grecsek H., U.S. Environmental Protection Agency, US

Nanotechnology has emerged as one of the leading fields in science having tremendous application in diverse disciplines. As nanomaterials become increasingly part of everyday consumer products, it is imperative to measure the potential release during [...]

River, Lake and Ocean Water Cooling

Peterson J., HP, US

Using water directly from rivers, lakes, and oceans is becoming an option for end users to save energy, avoid ozone depleting refrigerants, and save space. The first system in the U.S. at Ithica, NY, which [...]

Advanced oxidation processes for water purification: compact vs nanoporous anodic TiO2

Piazza V., Diamanti M.V., Mazare A., Pedeferri MP., Schmuki P., Politecnico di Milano, IT

In the last years, research on TiO2 engineering has been dedicated mostly to thin films for environmental and energetic applications, such as advanced oxidation processes for water purification and dye-sensitized solar cells. Anodic oxidation can [...]

HydroFlame – A Low Carbon Intensity Process for Low-Mobility Oil Recovery

Rao D.N., HydroFlame Technology Resources, INC, US

HydroFlame is a new concept of burning a fuel directly inside a rotating stream of water. Because of the direct contact between the flame and water, very high heat transfer coefficients are achieved which render [...]

Nitrogen-doped porous carbon for the removal of Cr or As in aqueous solutions

Han J.S., Ha D.G., Han J.S., Kang S-H, Seoul National University, KR

The removal of hexavalent chromium and arsenic from aqueous solutions was investigated with nitrogen-doped porous carbon. Excellent adsorption behavior was obtained due to the strong attraction between [HCrO4]- or [H2AsO4]- and nitrogen sites under weak [...]

Preparation and characterization of porous polyethersulfone nanofiltrationmembranes via combined phase separation method for water desalination

Jahanbakhsh Asl H., Soltanieh M., Sharif University of Technology, IR

In this work combined thermally induced phase separation (TIPS) and nonsolvent induced phase separation (NIPS), were used to fabricate nanofiltration membranes for water desalination at low pressures. Polyethersulfone (PES) flat-sheet membranes were successfully prepared by [...]

Low-cost membranes for nanofiltration and reverse osmosis

Berland B., Huntley K., Misra M., ITN Energy Systems, US

ITN has developed a proprietary nanocomposite membrane that outperforms state of the art water filtration and purification membranes by combining the following attributes: • High Salt Rejection • High water flux at Low Pressure • [...]