As an important by-product of electroplating, alloy manufacturing, metal surface treatment and electronics industries, nickel containing wastewater has high concentration of nickel ion (Ni^2+) and other heavy metal ions, refractory organic matter and phosphorus, which poses a serious threat to the environment and human health. In response to this challenge, the combined extraction centrifugal extractor has played an important role in the treatment of nickel-containing wastewater with its unique advantages.

Overview of combined extraction centrifugal extractor

As a kind of advanced physical separation equipment, combined with centrifugal separation and solvent extraction technology, the mass transfer process between heavy metal ions and organic solvents in wastewater can be realized efficiently and quickly. Its unique centrifugal design enhances the interphase contact area and mass transfer efficiency, making the extraction process faster and more thorough.

Application of combined extraction centrifugal extractor in the treatment of nickel-containing wastewater

Efficient extraction of nickel ions: under acidic conditions, the combined extraction centrifugal extractor uses selected extractants (such as P204, P507, etc.) to react with nickel ions in wastewater, and quickly transfers nickel ions from the water phase to the organic phase through powerful centrifugal force, achieving efficient separation.

To solve the complex stability problem: In order to solve the stability problem of the complex in nickel wastewater, the combined extraction centrifugal extractor can effectively destroy the complex structure by optimizing the extraction conditions (such as pH value, temperature, extraction agent concentration, etc.), combined with the appropriate pretreatment steps (such as oxidation, reduction, etc.), so that the nickel ion can be free and improve the extraction efficiency.

Selective extraction and impurity control: The combined extraction centrifugal extractor shows good selectivity in the extraction process, giving priority to the extraction of nickel ions and reducing the extraction of other impurities. This is thanks to its precise process control and efficient phase separation capabilities, ensuring the quality of the treated wastewater.

Back extraction and solvent regeneration

Under alkaline conditions, the combined extraction centrifugal extractor realizes the backextraction of nickel ions in the organic phase by adjusting the pH value of the solution or adding a specific backextraction agent. This process not only simplifies the extractant regeneration process, but also facilitates the subsequent further treatment or recovery of nickel ions. At the same time, the extractant recovers its extraction capacity after back extraction and can be recycled in a new extraction cycle, which reduces the treatment cost and meets the environmental requirements.

The combined extraction centrifugal extractor has shown remarkable advantages in the treatment of heavy metal wastewater containing nickel due to its high efficiency, environmental protection and wide adaptability. In the future, with the continuous progress of technology and the optimization and innovation of the process, the combined extraction centrifugal extractor is expected to achieve application expansion and performance improvement in more fields, and provide more reliable and efficient solutions for industrial wastewater treatment.