Purification of used dry cleaning solvents

Purification of used dry cleaning solvents

Activated carbon is widely used in the purification and recycling of used dry cleaning solvents, primarily perchloroethylene (also known as perc) and other hydrocarbon-based solvents. Dry cleaning solvents can become contaminated with dirt, oils, dyes, and other impurities during the cleaning process. Activated carbon’s adsorption properties make it effective in removing these contaminants and extending the lifespan of the solvent, reducing waste, and promoting environmental sustainability.

Contaminated solvents can develop undesirable colors and odors due to the presence of dyes and organic compounds. Activated carbon adsorption helps to reduce these visual and olfactory indicators, restoring the solvent to its original quality.

The adsorption of contaminants by activated carbon helps extend the usable lifespan of the solvent. This reduces the frequency of solvent disposal and replacement, resulting in cost savings and environmental benefits.

By recycling and purifying used solvents, businesses can minimize the amount of hazardous waste generated and reduce the need for new solvent purchases. This has economic benefits and contributes to sustainability by minimizing the environmental impact of solvent disposal.

Many jurisdictions have regulations governing the disposal and handling of hazardous solvents. Proper purification using activated carbon can help businesses meet these regulatory requirements.

Purified solvents contribute to more effective dry cleaning processes by reducing the chances of stains or contaminants being redeposited on clothing during cleaning.