Purification of inkjet ink from water using liquid phase, electric discharge polymerization and cellulosic membrane filtration.
A method to separate inkjet ink from water was developed using a liquid phase, electric discharge process. The liquid phase, electric discharge process with filtration or sedimentation was shown to remove 97% of inkjet ink from solutions containing between 0.1-0.8 g/L and was consistent over a range of treatment conditions. Additionally, particle size analysis of treated allyl alcohol and treated propanol confirmed the electric discharge treatment has a polymerization mechanism, and small molecule analysis of treated methanol using gas chromatography and mass spectroscopy confirmed the mechanism was free radical initiated polymerization.
Department of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 778 Atlantic Drive, Atlanta, GA 30332, USA E-mail: jeffery.hsieh@chbe.gatech.edu.
Alexander T
AT
Jordan
Jeffery S
JS
Hsieh
Daniel T
DT
Lee
D000433:1-Propanol / Q000737:chemistry; D004560:Electricity; D005374:Filtration / Q000379:methods*; D008401:Gas Chromatography-Mass Spectrometry; D007281:Ink; D000432:Methanol / Q000737:chemistry; D010316:Particle Size; D058105:Polymerization; D020005:Propanols / Q000737:chemistry; D014865:Waste Disposal, Fluid / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000737:chemistry*
D020005:Propanols; D014874:Water Pollutants, Chemical; C006463:allyl alcohol; D000433:1-Propanol; D000432:Methanol