In terms of deep treatment or renovation of wastewater at the end of chemical plants or industrial parks, activated carbon adsorption technology is one of the solutions that many enterprises consider due to its simple reaction mechanism and convenient operation and maintenance.
Generally speaking, sewage treatment plants in chemical industrial parks still have COD that is difficult to remove after several levels of biochemical treatment. The common concentration range is COD 150mg/L~60mg/L. Now, it needs to be treated to level A, There are many COD concentrations of 50mg/L, and some are even higher, requiring treatment of surface Class IV water, which requires a COD concentration of 30mg/L. If the COD removal target is around 20mg/L, such as from COD70mg/L to 50mg/L, or from COD50mg/L to 30mg/L, or if the current system operation is between meeting or not meeting the standard, choosing activated carbon adsorption technology is more suitable for the above situations. Not only is the effect reliable, but the cost of treating tons of water is also appropriate. Moreover, more importantly, the operation and maintenance are simple, and the requirements for operators are not high. For sewage standards that require color and odor, choosing activated carbon has incomparable advantages.
If the COD target to be removed exceeds 20mg/L, such as reducing COD from 120mg/L to 60mg/L, using activated carbon adsorption alone, either the carbon adsorption saturation is relatively fast, or the amount of carbon added is relatively large, and the operating cost per ton of water is usually high. Other processes can be used at the front end and activated carbon adsorption process can be used at the end. This treatment effect is more reasonable.
https://www.naturecarbon.com/coconut-shell-activated-carbon/
