N,N-Dimethylacetamide (DMAC), a "universal solvent" widely used in the pharmaceutical, petroleum, and chemical industries, produces a significant amount of toxic wastewater annually. A key raw material in the production of antibiotics like cephalosporins and amoxicillin, DMAC also plays a vital role in the polyimide film and synthetic fiber spinning industries. However, its high polarity and biological toxicity make wastewater treatment a major industry pain point.

Comparison of Traditional Treatment Methods

1.Biochemical method: Long treatment cycle and low efficiency
2.Supercritical water oxidation: Large equipment investment
3.Photocatalytic oxidation: High operating costs
4.Solvent extraction: economical and efficient, and can also recover DMAC

Zhengzhou Tiei Extraction Technology's CWL-M series centrifugal extractor is the perfect solution to this problem! Using the liquid-liquid solvent extraction principle and specialized extractant, it can reduce DMAC concentrations in wastewater from tens of thousands of mg/L to below 180 mg/kg, achieving a recovery rate of up to 95%.

Three Major Advantages of CWL-M Centrifugal Extractor

  1. Reduce energy consumption by 50%: Unique vortex disc design improves separation efficiency by 40%.
  2. Strong corrosion resistance: Special materials withstand various acid and alkaline environments.
  3. Automated operation: One-touch start for easy maintenance.

DMAC Wastewater Treatment Process

DMAC wastewater and extractant enter the CWL-M centrifugal extractor in proportion. High-speed centrifugation realizes rapid separation of the two phases. The loaded organic phase is stripping to recover DMAC, and the extractant is recycled to achieve zero emission.

"After we used Tiei Extraction's CWL-M centrifugal extractor, not only did our wastewater meet biochemical standards, but we were also able to recycle DMAC worth more than 2 million yuan each year!" said the environmental protection manager of a pharmaceutical company.

For more details about CWL-M centrifugal extractor, welcome contact us.
Email: sales@tieiextraction.com
Whatsapp: +86 19069612820