The water source of the reverse osmosis system is generally natural water, and the content of organic matter in natural water is complex. Studies have shown that the shell activated carbon has a good effect on organic matter with a molecular weight of 500 to 3000, and it does not remove organic matter with a molecular weight of less than 500 and greater than 3000. effect.
The reverse osmosis system consists of a reverse osmosis membrane (RO), a high-pressure pump, and a filter set to protect the reverse osmosis membrane. The basic working principle of reverse osmosis is: use a special high-pressure water pump to add raw water to a pressure of 6-20 kg, so that the raw water can penetrate through the reverse osmosis membrane with a pore size of only 0.0001 micron under the action of pressure. activated carbon powder Chemical ions, bacteria, fungi, and virions cannot pass through, and are discharged with the wastewater. Only water molecules and solvents with a volume less than 0.0001 microns are allowed to pass. The reverse osmosis device is the main part of the purified water production line.
The molecular weight of the adsorption index of nutshell activated carbon is below 200, while the organic matter in natural water mainly includes humic acid, fulvic acid and other substances, and its molecular weight is far greater than 200, so its adsorption value cannot represent the adsorption capacity of organic matter in natural water. https://www.granular-activated-carbon.com
Therefore, when natural water is selected as the inlet water of nutshell activated carbon, the selection of the filter material has nothing to do with the adsorption iodine value of the nutshell activated carbon and other parameters, but has nothing to do with the transition pores of the nutshell activated carbon (the radius of the transition pore is generally 10~100nm) is related to the number of activated carbons with higher transition pores.