NUST MISIS researchers have developed a reusable sorbent in tablet form for filters that removes pharmaceutical residues from wastewater that conventional filters cannot remove with an efficiency of over 90%. The invention can be useful not only in water treatment plants, but also at home, this was told to socialbites.ca at NUST MISIS.
The production and use of antibiotics in both agriculture and medicine has increased in recent years, especially since the Covid-19 epidemic. There has been an increase in levels of pharmaceutical waste in wastewater that traditional filters cannot cope with. The most effective and economical method of water purification is considered to be adsorption, a process in which molecules “stick” to the surface of the adsorbent.
“Newly developed sorbents are not always cheap, sometimes incompatible with existing purification systems, and often need to be disposed of after use. The nanomaterials we created based on boron nitride and polymer showed excellent adsorption properties of various types of antibiotics, outperforming activated carbon and zeolites. NUST MISIS’s “Inorganic The samples compressed into tablets are designed for reuse, they are cheaper and can be used as home filters, Kristina Kotyakova, a researcher at the “Nanomaterials” research center, told socialbites.ca.
Previously, NUST MISIS scientists proposed a powder sorbent based on boron nitride nanoparticles for water purification. Now researchers have doubled the filter’s absorption capacity by replacing the filter’s surface with the safe polymer methyl acrylate. The improved samples not only physically adsorb antibiotics but also chemically bind contaminant molecules. Additionally, the researchers developed a method to regenerate the sorbent and ensure its effective reuse.
Now scientists are conducting additional research on the environmental safety and resistance of filter tablets to long-term exposure to polluted water, and are also studying the decomposition of antibiotics on the sorbent surface to minimize usage costs.
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Source: Gazeta
Barbara Dickson is a seasoned writer for “Social Bites”. She keeps readers informed on the latest news and trends, providing in-depth coverage and analysis on a variety of topics.