Organic wastewater from chemical plants mainly refers to a large amount of high-concentration wastewater containing organic phases generated during the production and processing of chemical plants. Wastewater usually contains a large amount of organic matter. This type of wastewater has high COD and high toxicity. It cannot be directly discharged or biochemically treated. The organic components in it need to be extracted, and then the treated wastewater is discharged biochemically.

The CWL-M centrifugal extractor developed and produced by Zhengzhou Tiei Extraction Technology Co., Ltd. can be applied to wastewater pretreatment. Experiments have shown that the effect of solvent extraction with a centrifugal extractor is better than other processes. A customer's chemical plant produces high COD wastewater during the production process in workshop. The COD is about 10,000, and the processing capacity is about 30 tons of wastewater per day. Currently, the COD needs to be reduced to a level that can enter the biochemical stage.

According to the actual situation of the customer, Tiei Extraction Technology Engineer conducted a small test with the wastewater samples brought by the customer, and then selected the industrial equipment based on the experimental results. The company selected the CWL50-M experimental centrifugal extractor for the customer, and the extractant was extractant A. During the experimental operation, COD wastewater and extractant A were injected into the centrifugal extractor according to a certain ratio. With the help of the rotation of the drum, the two phases were quickly mixed and dispersed through the turbine disc and impeller, and the two-phase solution was fully transferred to complete the mixing and mass transfer process. The mixed liquid was then separated into two phases by the centrifugal force of the drum and discharged from the machine.
Through the back extraction section, the organic phase is separated from the extractant, and the extractant can be recycled. The COD of the wastewater after extraction is significantly reduced, and it can enter the biochemical section for treatment with good results. The customer is very satisfied with the experimental results and purchased industrial equipment. The equipment is currently running stably in the workshop.

The CWL-M centrifugal extractor is very effective in treating organic wastewater from chemical plants. Of course, not all chemical wastewater can be treated according to this extraction process. It is necessary to formulate corresponding extraction process plans and equipment selection plans based on the specific feed and liquid conditions. If you want to know more about the specific operating principles of the centrifugal extractor and its application in chemical wastewater, welcome contact us.
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