Search Results - water treatment

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Forward Osmosis separation processes using Magnesium Oxide and Carbon Dioxide
SUMMARYLehigh University has developed a forward osmosis separation processes using magnesium oxide and carbon dioxide. The invention can purify water through a Forward Osmosis process from both surface water and saline water. The invention can concentrate waste from a dilute waste stream. In various applications it may be desirable to concentrate...
Published: 5/20/2014   |   Inventor(s): Arup Sengupta, Robert Creighton, Ryan Smith
Keywords(s): Water Treatment
Category(s): Chemistry, Chemical, Gas/Liquid Treatment
Use of Soy Proteins or Soy Derivatives and Zero-Valent Iron for Environmental Remediation
SUMMARY Lehigh has developed a novel material for the treatment of contaminated water and soil. The method for the preparation of such materials involves the dispersion of zero-valance nanoscale iron particles and use of either soy protein, soy milk, or other soy derivatives. These particles have large surface areas, giving them increased reactivit...
Published: 4/2/2009   |   Inventor(s): Wei-Xian Zhang
Keywords(s): Environmental Remediation, Nanotechnology, Pollution Control, Water Treatment
Category(s): Energy and Environment
A Method for Treating Contaminated Water
SUMMARY The given technology is a method for the treatment of wastewater. Zero valent iron particles having enhanced surface area are used to treat contaminated groundwater in-situ or above ground. Hollow and/or porous zero valent iron particles having a generally spherical shape and porous surface are produced using a sacrificial substrate and the...
Published: 3/16/2009   |   Inventor(s): Wei-Xian Zhang
Keywords(s): Environmental Remediation, Nanotechnology, Water Treatment
Category(s): Gas/Liquid Treatment
Dispersed Zero-Valent Iron Colloids
SUMMARY Stable dispersions of zero-valent iron particles are produced by milling of micro- and nano-scale iron particles (colloids) in the presence of a dispersant or dispersants. The present invention is a process for preparing zero-valent iron suspensions which can be used directly at the source of the pollution, applied to deep aquifers, and spr...
Published: 3/16/2009   |   Inventor(s): Wei-Xian Zhang
Keywords(s): Environmental Remediation, Nanotechnology, Water Treatment
Category(s): Energy and Environment