METHOD FOR PURIFYING DRINKING WATER USING NANOFILTER COATED WITH NANO-SIZED FERROMAGNETIC FERRITE, METHOD FOR STERILIZING HARMFUL BACTERIA CONTAINED IN DRINKING WATER USING SAID NANOFILTER, AND METHOD FOR IMPROVING DRINKING WATER BY STERILIZING AND R

摘要

Provided is a method for purifying drinking water, which has a simple and low-cost configuration in which the magnetic line of force generated from the surface of a nanofilter formed by coating a nano-sized ferromagnetic ferrite on a non-woven fabric is used, and which reliably removes aggregates which were formed as harmful substances such as arsenic have aggregated on the iron in the drinking water. The method for purifying drinking water involves coating a filter material formed from a non-woven fabric with a nano-sized ferrite having a particle diameter of 5 to 30nm in order to form a nanofilter coated with the nano-sized ferromagnetic ferrite that emits a magnetic line of force from the surface of the filter material, soaking and leaving the nanofilter within drinking water for a predetermined period of time, and absorbing, with the nanofilter coated with the nano-sized ferromagnetic ferrite and by means of the action of the magnetic line of force thereof, aggregate substances included in which are a magnetic arsenic and a compound thereof which have aggregated on the iron in the drinking water, thereby purifying the drinking water.