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patent+ magnetic nanoparticles+ wastewater using water-dispersible

The present invention relates to a method for treating wastewater using water-dispersible magnetic nanoparticles

The method comprising the steps of: employing an iron electrode as an oxidizing
electrode and a reducing electrode of a flow-type electrochemical oxidation-reduction
reactor; maintaining the interval between the electrodes of the oxidation-reduction
reactor at 0.1 to 1.0 cm; At a flow rate of 10 to 50 ml / min while applying a voltage of 1
to 5.5 V for 1 hour to the inside of the reactor at 40 to 80 ° C Preparing iron oxide
nanoparticles by mixing the iron oxide nanoparticles with a hydrophilic coating agent
selected from chitosan, dextrin and surfactant and reacting at 60 ° C for 1 hour to
prepare magnetic nanoparticles having improved water dispersibility The method
comprising the steps of: (a) introducing waste water using the prepared magnetic
nanoparticles having improved water dispersibility in a positive osmosis process; (b)
introducing the derived wastewater into a permanent magnet T-trap Waste water
treatment method using a water-dispersible magnetic nanoparticles being composed of
a step of re-purified

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