The experiments showed that activated carbon and reverse osmosis best

Miss Wu's troubles are not isolated cases. A wide variety of water purifier on the market today, many brands, the concept is complex, leading to most consumers lack the ability to determine the quality of water purifier. It also makes many consumers to take in the selection, or price, or to listen to the salesperson side of the story, often making the wrong choice.

According to the reporter's investigation, in accordance with the degree of filtration, water purifier on the market can be divided into coarse filter (activated carbon adsorption), ultrafiltration and reverse osmosis three types of coarse-to-fine filter mode, the price difference is mainly because of the use of the number of filter and quality vary.disposable syringe

Among them, more than 80% of the water purifier market-based activated carbon filter. Activated carbon water purifier granular activated carbon, powdered activated carbon or compressed activated carbon for water purification media, because of its well-developed porous structure caused by the high specific surface area, can absorb a variety of organic substances and harmful heavy metals, removal of organic olfactory substances.
 Ultrafiltration water purifier using ultrafiltration technology, selective separation of substances through the porous structure of the membrane surface, and retention. When tap water flows through the membrane surface under a certain pressure, the small water molecules through the membrane, bacteria, macromolecules, colloids were trapped. A reverse osmosis membrane filtration technology, the core is a microporous filter, only the water molecules and minerals smaller than water molecules through the membrane and retained for drinking; are not passed through the membrane of bacteria, viruses, scale, pollutants, minerals, concentrated Be water discharge, thus ensuring water purity of water.

However, the three filter modes are insufficient. Activated carbon main indicators of organic matter removal effect, but with the increase in flow capacity, removal efficiency decreased very fast; ultrafiltration membrane can not remove the residual chlorine in the water and pollution compounds; reverse osmosis water purifier water, generally The maximum water rate of only 8% -10%, a glass of water purification needs two or three cups of wastewater drain, the higher cost of clean water is a waste of water.

For these types of water purification, Hongkou District, Shanghai Center for Disease Control has done a water purification efficiency experimental results show that activated carbon and reverse osmosis best, only the worst of activated carbon, ultrafiltration as good as reverse osmosis. Experts suggest that if you do not consider the quality problems, three water purifier, each have their own characteristics, choose what kind of water purifier, also needs to be flexibility to choose according to the actual situation, the higher the better is not the ability to remove the foreign body .disposable scapel

Water, chlorine, heavy odor, organic matter content of more tap water, buy a large amount of activated carbon home water purifier. Activated carbon residual chlorine, odor strong adsorption, the removal of organic matter. However, because of the obvious limitations of activated carbon, used in conjunction with ships and other water purification equipment.