- The specific surface area affects the effect of waste activated carbon recovery and benzene removal.
The specific surface area not only determines the adsorption capacity of activated carbon – the larger the specific surface area, the larger the adsorption capacity, and the adsorption capacity of activated carbon. Generally, the more the pore structure is developed, the better the adsorption capacity of the product. Therefore, the activated carbon has a better specific effect on the benzene removal effect.
- The pore size affects the benzene removal effect of waste activated carbon recovery.
Why do you say this? Because benzene is a small volume of pollutants, it has certain requirements on the pore size of activated carbon. The pore size is too large, and it is easy to cause desorption. The pore size is small, and it is easy to block the pore diameter of activated carbon. Also can not hit the adsorption effect. Therefore, it is important to select a suitable activated carbon pore size, and the microporous structure of activated carbon has better benzene removal effect.
Activated carbon adsorption technology has been used in domestic purification and decolorization of pharmaceutical, chemical and food industries for many years. It was used in industrial wastewater treatment in the 1970s. Production practice shows that activated carbon has excellent adsorption to trace organic pollutants in water, and it has good adsorption effect on industrial wastewater such as textile printing and dyeing, dye chemical, food processing and organic chemical industry. Under normal circumstances, organic substances represented by comprehensive indicators such as BOD and COD in wastewater, such as synthetic dyes, surface agents, phenols, benzenes, organic chlorine, pesticides and petrochemical products, have unique removal capabilities. Therefore, activated carbon adsorption has gradually become one of the main methods for secondary or tertiary treatment of industrial wastewater.