There are many harmful substances in wastewater. In order to remove these harmful substances, some adsorbents are often used in water treatment projects. Activated carbon, activated lignite, quartz sand, clay and zeolite and other conventional adsorption materials have low adsorption capacity, poor regeneration performance and selectivity, and cannot meet environmental protection requirements. Now there is a new material in many sewage treatment project cases. The following introduces a highly efficient polymeric adsorbent macroporous adsorption resin.
Macroporous adsorption resin is an adsorbent with porous three-dimensional structure. It has stable physical and chemical properties, large specific surface area, high adsorption capacity, and superior selectivity. It is widely used in wastewater treatment, pesticide adsorption and heavy metal ions. Adsorption and other environmental fields.
The adsorption of macroporous adsorption resin is mainly physical adsorption, the essence of which is that the surface molecules generate surface energy due to uneven force, which ultimately leads to the adsorption function of the surface. Surface adsorption is usually adsorbed in an aqueous solution, and the amount of adsorption is affected by the specific surface area and the active sites of the adsorbed molecules, and is the result of van der Waals attraction or hydrogen bonding. The macroporous adsorption resin with porous structure can adsorb and screen substances of different molecular weights. Different molecules are eluted by a certain eluent to achieve the purpose of separation, impurity removal, purification and concentration.
Macroporous adsorption resin is widely used because of its strong adsorption capacity. Especially for pollutants such as halogenated hydrocarbon compounds, nitro compounds, phenolic compounds, and organic acid compounds in wastewater, it has a high adsorption capacity. With the continuous emergence of new macroporous adsorption resins and the rapid development of adsorption technology, it has unique properties such as good selectivity, high adsorption capacity, fast exchange speed, and strong pollution resistance. Macroporous adsorption resins play a significant role in the field of water treatment. effect.