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Chinese scientists can actually recover dyes from wastewater

Recently, the Key Laboratory of Biomimetic Materials and Interface Science, Institute of Physical and Chemical Technology, Chinese Academy of Sciences, proposed a new fully dispersed strategy for surface heterogeneous nanostructured particles, and prepared a fully dispersed hydrophilic hydrophobic heterogeneous microspheres.

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Put it into the wastewater, and the dye will be adsorbed onto the microspheres. Then, the microspheres adsorbed with dyes are dispersed into organic solvents, and the dyes are desorbed from the microspheres and dissolved by organic solvents such as ethanol and octane. Finally, by removing organic solvents through distillation, dye recovery can be achieved, and the microspheres can also be recycled.

 

The implementation process is not complex, and the relevant achievements have been published in the international academic journal Nature Communications, with unquestionable technical authority.

 

Organic dyes are commonly used as color additives in industrial production and daily life, such as clothing, food packaging, daily necessities, and other fields. Data shows that the global production of organic dyes has reached 700000 tons per year, but 10-15% of it will be discharged with industrial and household wastewater, becoming an important source of water pollution and posing a threat to the ecological environment and public health. So removing and even recovering organic dyes from wastewater is not only environmental friendly, but also achieves waste reuse.

 

Our company, SUNRISE, offers a wide range of eco-friendly dyes for various industries. Sulfur dyes for denim dyeing can be a popular choice because they provide vibrant and long-lasting color to the denim fabric. Paper liquid dyes are used in industries such as printing and packaging to add color and enhance visual appeal. Direct and basic dyes are used in the paper and textile industries to dye natural fibers such as cotton, silk and wool. Acid dyes are known for their excellent fastness properties and are commonly used in the leather industry to dye leather products. Finally, solvent dyes can be used in painting applications, providing artists and painters with a wide range of colors. SUNRISE is committed to providing eco-friendly options for a variety of dyeing needs.


Post time: Oct-09-2023