Keywords: Activated carbon filterHydrophilic Millipore MembraneLaboratory filterMillipore-cartridge precision filter
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The principle of activated carbon filters and water purification technology Applications
Activated carbon filters work is done through the carbon bed . Activated carbon bed of particles composed of a very large number of pores and a large specific surface area , has a strong physical adsorption capacity. Water through the carbon bed , organic pollutants in water by activated carbon adsorption effectively . Besides activated carbon, there are some non-crystalline portion of the functional groups containing oxygen tube , so that through the carbon bed of organic pollutants in water effectively adsorbed by activated carbon . Activated carbon filter is a more commonly used water treatment equipment, water desalination system as pre-treatment can effectively ensure the post-stage equipment life, improve water quality , pollution prevention , in particular to prevent post-stage reverse osmosis membranes , ion exchange resins , etc. free state I oxygen toxicity pollution. Activated carbon is widely used in industrial waste treatment , solvent recovery , food and beverage purification , vector, medicine, gold extraction , semiconductor applications , such as batteries and energy storage . Adjusting the pore structure of activated carbon , the surface modifying groups , to improve its performance and the particular specific adsorption has a very important role in catalysis .
In water pretreatment system, activated carbon filter can absorb pre- filter can not remove the residual chlorine in order to prevent post-stage reverse osmosis membrane by its degradation , and also leaked over the previous stage adsorption of small organic molecules and other polluting substances, water, odor , colloid and pigment , heavy metal ions , which are more visible role in the adsorption removal , but also has the effect of reducing COD .
Activated carbon filters work is done through the carbon bed . Composed of carbon bed activated carbon particles have a very large number of pores and large specific surface area , has a strong physical adsorption capacity of water through the carbon bed , organic pollutants in water by activated carbon effectively adsorbed . Besides activated carbon, there are some non-crystalline portion of the functional groups containing oxygen tube , so that through the carbon bed of organic pollutants in water effectively adsorbed by activated carbon activated carbon filter is a more commonly used water treatment equipment, as water treatment desalination system after pre-treatment can effectively ensure the grade equipment life, improve water quality , pollution prevention , in particular to prevent post-stage reverse osmosis membranes , ion exchange resins and other pollution free state I oxygen toxicity .
Activated carbon filters in water purification technology in the application:
1, for good water quality , the traditional access to safe water treatment processes qualified drinking water. But with the source water contamination, removal of organic matter , reducing the nitrogen content of the current three urgent problems of drinking water , the traditional water treatment technology can not meet the requirements, although most parts of drinking water after conventional treatment , but still contains a variety of trace organic compounds , especially toxic , teratogenic , carcinogenic and mutagenic substances gradually increased , people drinking , there will be dizziness , fatigue , hair loss, increased incidence of cancer and other phenomena .
2 , urban drinking water treatment processes to remove suspended solids, turbidity and sedimentation of pathogenic microorganisms coagulation → → Filter → disinfection conventional treatment process based, and according to the characteristics of source water treatment structures to select the appropriate type , a combination of drinking water treatment process . Chlorination disinfection methods mainly based, there are a few water using chlorine dioxide, ozone or ultraviolet disinfection. General requirements for water quality meet the national drinking water quality standards promulgated .
3 , in order to improve and enhance the quality of drinking water , effective removal of trace organic compounds in drinking water as well as iron , manganese, heavy metals and other hazardous substances to prevent THMs and other teratogenic , carcinogenic substances, many of the world 's countries have carried out in this area study , and take appropriate measures. From the information available , drinking water purification mainly taken the pre-oxidation , activated carbon adsorption and ozone oxidation and other measures.
Activated carbon filters are widely used in water treatment processes, such as the depth of water purification ; brewing and beverage industry, the depth of water purification ; activated carbon filter is now an indispensable part of people's lives , the city has played a significant environmental improvement effect.