Phenol and its derivatives are widely used as an important chemical raw material in oil refining, dyestuff, paper making, rubber, medicine and other industries, Thus large amount of phenol wastewater is produced.
Phenol wastewater is one of the important pollutants in water. It not only poses a serious threat to human health, but also does harm to animals and plants. On the other hand, phenolic substances are important chemical raw materials with high added value. Therefore, the separation and purification of phenolic substances in sewage is a very effective method to realize environmental protection and resource utilization.
This customer, The water quality of the wastewater is as follows: the phenol content is 3500ppm and the COD is 5200ppm.
We use two-stage extraction and three-stage reverse extraction to treat the wastewater.
After treatment, the total phenol content in the wastewater is reduced to 26ppm and the COD is reduced to 150ppm.