Talk a water purifier why use activated carbon filter?

Water purifiers why use activated carbon filter? In water pretreatment system, activated carbon filter can filter adsorption before class can't remove the level of residual chlorine in order to prevent the reverse osmosis membrane by the oxidation degradation, as well as adsorption was magnitude leakage of small molecule organic pollutants, such as peculiar smell, colloid and pigment, heavy metal ions in water have more apparent, such as adsorption removal effect, also have the effect that reduce COD. Can further reduce the SDI value of RO water, assure SDI< 5，TOC< 2. Oppm。


water purifiers why use activated carbon filter? The current household water purifiers, filtering technology, filtering technology to follow the order of the filter hole from big to small. Only activated carbon as filter material at the same time, as well as the function of adsorption, can remove the water of different color, odor, residual chlorine, organic matter and adsorption of trace heavy metals. Especially for the reverse osmosis water purifier ( Country called general water purifier device) , activated carbon is an important means of adsorption harmful organisms, activated carbon filter so essential in water purifiers, other filter can't replace. For the RO process, because the residual chlorine is larger influence on RO membrane, to cause a decline in desalination rate, need activated carbon for pretreatment, protect the RO membrane, prolong service life. Visible, reverse osmosis water purifier ( The RO) Pre - activated carbon filter is standard.

1。 Water purifiers why use activated carbon filter? Activated carbon for heavy metal adsorption is a kind of selective, ie not all adsorption of heavy metals: it is to remove trace, so activated carbon is not a means to remove heavy metals and reliable. Even the modified activated carbon ( According to some kind of metal, add special in activated carbon adsorbent material such as chelating agent) And just for some metals ( Such as activated carbon technology research and development strength deeply amway, also only propaganda of Hg, Pb has very good effect, on the isolation, purification of the arsenic performance is not perfect) Five kinds of toxic heavy metals, harmful to human body, it is can't remove at the same time. Because now the waterworks water heavy metal content is low, basically is a fine line, some manufacturer propaganda to exaggerate the function, this have been exposed ( Such as 3 m) Don't be misled;





2. Water purifiers why use activated carbon filter? In China, as a result of industrial pollution is serious, the TOC removal is very important, not the RO process water purifiers, the choice of the activated carbon filter is one of the key factors determining the TOC removal effect.






3. Water purifiers why use activated carbon filter? For southern China, the hardness is not high, but the economy developed, industrial pollution, residual chlorine, ring evaluating remind everybody so home or choose front activated carbon adsorption value higher or more level. For high hardness area, or one grade scale or softening of the filter is better.






4. Water purifiers why use activated carbon filter? Currently widely used dow reverse osmosis element for low-pressure polyamide membrane, the membrane in use is not resistance to chlorine, especially under the action of heavy metal ions, easy oxidation to cause permanent damage. More than tap water containing heavy metal ions in activated carbon expires, easy to damage the membrane. Tap water residual chlorine and organic matter content is changing, activated carbon rods replacement is not enough to just by calculation and estimation of the






5. Water purifiers why use activated carbon filter? For activated carbon filter, the adsorption needs certain contact time, water velocity of flow can not too fast. According to standard JB/T2932-1999 'water treatment equipment technology conditions' : activated carbon filter to remove free chlorine in water, water flow rate must be 20 m/h or less, and to remove organic matter in water, water flow rate must be 10 m/h or less.






more filter information can look at the guangdong dongguan, activated carbon filter manufacturer's website: http://www. jinglv。 net/