Perm scientists from PPRPU have developed an innovative method for cleaning water from heavy metals and oil products, using sorbents based on coffee grounds. The study showed that their properties are comparable to activated carbon, which is widely used in industry.
Coffee waste, possessing high sorption capacity, can effectively remove iron, copper, and oil products from water. To create the sorbent, the researchers used potassium hydroxide as an activator, which greatly simplified the process. Pyrolysis at a temperature of 800 degrees Celsius with a waste-to-activator ratio of 10:1 ensured the production of a carbon sorbent that meets modern standards.
This method not only reduces the cost of sorbent production but also offers an environmentally safe solution for the disposal of coffee grounds, which are currently used in less than 15% of cases. The research results are published in the collection of the conference "Chemistry. Ecology. Urbanistics" for 2025 and are conducted within the framework of the "Priority-2030" program.
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