The rising presence of microfibers, that are tiny artificial fibers, and dangerous micro organism in wastewater has offered a essential environmental and public well being problem. Researchers led by Professor Milenko Roš, together with Jolanda Pikl, Professor Aleksandra Lobnik, Hakim El Khiar, and Nataša Uranjek from the College of Maribor, the College of Environmental Safety in Velenje, and AQUA LAB have developed a modern technique to deal with this difficulty. Their examine, not too long ago printed within the journal Cleaner Engineering and Know-how, explores an environment friendly system combining membrane filtration, a method utilizing skinny limitations to separate impurities and a course of utilizing ozone fuel to wash water, a technique that makes use of extremely reactive oxygen to kill microorganisms to purify wastewater.
Professor Roš’s crew’s motivation stems from the pressing want to scale back pollution like microplastics, small plastic particles that pollute water methods and pathogens in handled water. Conventional wastewater therapies typically fall wanting adequately eradicating microfibers and micro organism, which pose vital threats to aquatic ecosystems and human well being. “Our goal was to make handled wastewater appropriate for reuse in agriculture and recreation by eliminating almost all microfibers, microplastics, and microorganisms,” defined Professor Roš.
By using a a specialised ceramic filter with tiny openings, the crew achieved exceptional ends in filtering out suspended solids and microfibers. A subsequent a course of utilizing ozone fuel to wash water, a technique that makes use of extremely reactive oxygen to kill microorganisms course of—the place ozone fuel is used to disinfect water—utterly eradicated dangerous micro organism, rendering the handled water extremely appropriate for purposes reminiscent of irrigation and bathing. The analysis described a two-step remedy course of that exceeded conventional strategies, with microfiltration alone eradicating most dangerous micro organism.
The importance of this innovation lies in its capability to attain near-complete removing of pollution whereas being adaptable to numerous wastewater remedy contexts. The examine utilized a pilot plant system, a small-scale setup used to check and refine industrial processes to research water samples from the Šalek Valley wastewater remedy facility. Outcomes confirmed that the filtering system significantly diminished undesirable particles within the water, whereas a course of utilizing ozone fuel to wash water, a technique that makes use of extremely reactive oxygen to kill microorganisms successfully eradicated residual pathogens.
Professor Roš and his crew additionally developed a brand new system designed to detect microfibers to precisely measure the prevalence of microplastics in handled wastewater. This technique, utilizing superior methods to check supplies, offered essential insights into the efficiency of the filtration course of. “The mix of microfiltration and a course of utilizing ozone fuel to wash water, a technique that makes use of extremely reactive oxygen to kill microorganisms demonstrated unmatched effectivity in producing water that meets excessive security requirements for reuse in varied purposes,” stated Professor Roš.
This modern system is poised to play a significant function in selling water sustainability by aligning with the round economic system mannequin, which focuses on reusing assets to attenuate waste, the place assets are reused effectively. The handled water can assist agriculture, scale back freshwater demand, and decrease environmental air pollution. The researchers consider that implementing comparable methods worldwide may revolutionize wastewater administration.
By addressing each environmental and public well being issues, Professor Roš and colleague’s examine provides a pathway to a extra sustainable future. The know-how represents a major leap in wastewater remedy, guaranteeing cleaner water for communities and ecosystems alike.
Journal Reference
Rihter Pikl J., Lobnik A., Roš M., El Khiar H., Uranjek N. “Microfibres and coliforms willpower and removing from wastewater remedy effluent.” Cleaner Engineering and Know-how, 2024. DOI: https://doi.org/10.1016/j.clet.2024.100806
In regards to the Authors
Prof. Dr. Milenko Roš has been employed on the Chemical Institute in Ljubljana for over 39 years, of which he spent 25 years as the pinnacle of the Laboratory for Water Chemistry, Biology, and Know-how. His work has targeted on wastewater remedy, the administration of sludge from organic remedy vegetation, and metrology in chemistry. As a professor of air pollution and water safety, he has lectured at quite a few home establishments (the College of Ljubljana, the College of Maribor, and the College of Environmental Safety in Velenje) in addition to at international universities (the Vienna College of Know-how and the Warsaw College of Know-how). Milenko is the creator and co-author of quite a few scientific articles, textbooks, and over 15 books on wastewater remedy. Up to now, he served because the president of the Slovenian Society for Water Safety and is an energetic member of varied nationwide and worldwide associations involved with water safety and environmental sciences. Milenko Roš is a recipient of the William Dunbar Medal, awarded by the European Water Affiliation for his excellent contribution to utilized technical growth in wastewater and waste remedy.
Prof. Dr. Aleksandra Lobnik obtained her PhD in 1998 on the Institute of Natural Analytical Chemistry of Graz College, Austria. Since 2009, she has been employed as a full professor on the College of Mechanical Engineering on the College of Maribor. In 2006, she co-founded a spin-off firm, IOS Ltd., the place she is the CEO. In 2021, she turned a member of the Slovenian Academy of Engineering; she was additionally the President of the Worldwide Sol-Gel Society (ISGS). She has participated in additional than 50 nationwide and worldwide analysis tasks as a challenge supervisor. Aleksandra Lobnik can also be energetic within the promotion of science. She is often invited to numerous conferences and workshop committees. She provides a variety of interviews on recycling applied sciences for plastic/textile wastes, sensors, nanosciences, data switch in broadly accessible media, and spherical tables.
Jolanda Rihter Pikl, MSc, has spent the previous 18 years dedicated to discovering modern options in wastewater remedy. Her educational journey started with a level in Environmental Safety, adopted by a grasp’s in ecotechnology from the College of Environmental Safety in Velenje. Presently, she is pursuing doctoral analysis on the College of Mechanical Engineering in Maribor, the place her focus lies in leveraging membrane applied sciences to remove microplastics and disinfect micro organism utilizing ozonation. As a grasp of ecotechnology on the Ministry of Pure Assets and Spatial Planning, Jolanda leads initiatives to boost wastewater assortment and remedy infrastructure. Her environmental engineering experience permits her to considerably contribute to bettering water high quality and reaching nationwide and European ecological goals. With a holistic strategy that mixes superior scientific analysis with efficient challenge administration, Jolanda performs a pivotal function in remodeling wastewater administration and environmental infrastructure. Her work underscores the potential of modern applied sciences to sort out urgent international challenges associated to water shortage and environmental air pollution.
Hakim El Khiar, MSc, has been on the forefront of consuming water filtration methods since 1996, partaking in growing, prototyping, and industrialisation of modern filter applied sciences. He has additionally devised efficient methods for purifying consuming water in emergencies and specialises in recycling wastewater from varied industrial purposes. Moreover, he has created a microplastic sampling technique that allows fast and easy detection of microplastics in consuming water. Hakim’s groundbreaking improvements have garnered a number of awards from the Slovenian Chamber of Commerce. He co-authors a number of analysis papers and a e-book on eradicating microplastics utilizing membrane know-how. Lots of his merchandise are internationally patented, together with an uninterrupted water filtering system with automated filter cleaning, a tool for steady water filtration, a transportable gravity water filtration machine, and varied multi-stage water purification methods. Hakim contributes considerably to water filtration and environmental safety via his intensive work and patented applied sciences.
Nataša Uranjek, BSc, graduated in chemical engineering from the College of Chemistry and Chemical Know-how in Ljubljana. She heads the know-how and supervision division on the Velenje Public Utility Firm. Her experience encompasses the remedy and high quality management of consuming water and optimising and enhancing processes in wastewater remedy and organic sludge administration. She designs and supervises water remedy and processing services as an authorized engineer. Nataša has printed contributions to educational journals, participated in nationwide and worldwide conferences, and collaborated on varied analysis tasks with esteemed establishments. She has additionally obtained a number of innovation awards from the Savinja-Šalek Chamber of Commerce and the Slovenian Chamber of Commerce. Nataša has been an energetic Slovenian Water Safety Affiliation member for over a decade and represents the state within the European Federation of Nationwide Associations of Water Providers. She is pursuing her doctoral research on the College of Mechanical Engineering on the College of Maribor whereas serving as a senior lecturer on the College of Environmental Safety in Velenje, Slovenia.
