Adsorption technologies use activated carbon and other materials to adsorb and remove ions, organic matter and other impurities dissolved in water.
The materials activated carbon and zeolite have many very small holes called pores, and the traction of their porous surface causes particles present in liquids or gases to stick to them. For example, in wastewater treatment, water is passed through a device filled with activated carbon, and the traction of the activated carbon's porous surface causes the organic matter, etc. to become stuck inside the pores, removing it from the water.
Adsorption technologies are an efficient way of selectively removing particles from liquids or gases through the selection of an adsorbent with pores that are just the right size according to the properties of the substance being removed, i.e. the size of its particles and its solubility.
Kurita uses these adsorption technologies in the development of wastewater treatment and deodorization treatment applications.