Products Description
Activated carbon, as an environmentally friendly adsorbent, has strong adsorption and catalytic performance, sufficient raw materials and high safety, acid and alkali resistance, heat resistance, insoluble in water and organic solvents, easy regeneration and other advantages, has strong adsorption capacity for organic pollutants dissolved in water such as benzene compounds, phenolic compounds, petroleum and petroleum products, etc. It also has a good removal effect on organic pollutants that are difficult to be removed by biological and other chemical methods, such as chroma, methylene blue surfactants, herbicides, insecticides, synthetic dyes and many synthetic organic compounds.
In addition, activated carbon also has strong adsorption capacity for heavy metals in electroplating wastewater and smelting wastewater. It has an obvious clarifying effect on the turbidity of the water, and can remove the abnormal odor and peculiar smell in the water. It also has an excellent filtering effect on the bacteria. Therefore, activated carbon is getting more and more attention in water treatment.
However, due to the characteristics of ordinary activated carbon, such as high ash content, small pore volume, wide distribution of micropores, small specific surface area and poor adsorption selectivity, and some limitations of its surface functional groups and electrochemical properties, its adsorption and removal of pollutants is limited, far from meeting the requirements of domestic and foreign markets. Therefore, it is necessary to modify its structure and properties to increase its adsorption capacity and relieve the pressure of water pollution.
The through-hole resistance is small, the specific surface area is large and the adsorption rate is high.
Suitable for exhaust gas purification, gas separation purification, deodorization and oil removal, ect.
Granular carbon, good absorption, high purification rate, large contact area.
Activated carbon filter is a process of intercepting pollutants in water in a suspended state, where suspended solids are blocked in the gaps between activated carbon. The pore size and porosity of the filter layer increase with the increase of activated carbon particle size. That is to say, the coarser the particle size of activated carbon, the larger the space to accommodate suspended substances. The results show that the filtration capacity is enhanced, the pollutant carrying capacity is improved, and the pollutant interception capacity is increased.
Meanwhile, the larger the pore size of the activated carbon filter layer, the more suspended solids in the water can be transported to the next layer of activated carbon filter layer. With sufficient protection thickness, more suspended solids can be intercepted, enabling the middle and lower filter layers to better play their interception role and increasing the unit's pollutant interception capacity.
Strictly speaking, the ability of activated carbon to retain suspended substances comes from the surface area provided by activated carbon. When the flow rate is low, the filtration ability of the device mainly comes from the screening of activated carbon. When the flow rate is fast, the filtration ability comes from the adsorption of activated carbon particles on the surface. During the filtration process, the larger the particle surface area provided by activated carbon, the stronger its adhesion to suspended solids in water.
