Extremely chlorine-resistant parasites, known as Cryptosporidium, which cause a diarrheal disease in humans and can lead to significant mortality in immunodeficient patients, become virtually inactive when exposed to industrial UV reactors.
Human contamination of this waterborne disease, known as cryptosporidiosis, occurs by ingestion of the resistant form of the parasite, either directly through person-to-person and animal-to-person routes or indirectly through environmental vehicles including water, food or soil. Contamination of water resources for drinking water supplies, as well as inadequate water treatment can be responsible for large cryptosporidiosis outbreaks. Up until now, there has been no efficient curative treatment, making it one of the most common causes of waterborne disease within humans in the United States.
Thanks to collaboration between researchers at the Laboratory of Parasitology of the University Denis Diderot, and the VEOLIA Research Center, the efficacy of UV light was demonstrated in large scale tests with pilot equipment. The study was designed for spiking experiments in which water was experimentally contaminated with large amounts of Cryptosporidium oocysts then passed through the UV reactors. The efficacy of medium-pressure and low-pressure UV reactors (UVaster®*) used in the water industry was then assessed using a sensitive cell culture method developed by Emilio Entrala and used by Professor Francis Derouin’s team in the Denis Diderot’s University Laboratory of Parasitology.
The article published in FEMS Immunology & Medical Microbiology, a journal of the Federation of European Microbiological Societies, describes how replicate experiments successfully achieved inactivation rate of >99.998% with both reactors. These results confirm the remarkable efficacy of both polychromatic medium-pressure and monochromatic low-pressure UV lamps in conditions that are close to that of many small- or medium-size water distribution units.
According to Dr. Cedric Féliers, who led the study conducted for the VEOLIA Research Center “These tests, made in near real conditions, confirm that these industrial UV reactors could prevent waterborne outbreaks and secure water supply to customers.”
*UVaster® is a UV reactor trademark of Veolia Water Solutions & Technologies.
Lucy Mansfield | alfa
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Researchers Discover New Anti-Cancer Protein
22.03.2018 | Universität Basel
An international team of researchers has discovered a new anti-cancer protein. The protein, called LHPP, prevents the uncontrolled proliferation of cancer cells in the liver. The researchers led by Prof. Michael N. Hall from the Biozentrum, University of Basel, report in “Nature” that LHPP can also serve as a biomarker for the diagnosis and prognosis of liver cancer.
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In just a few weeks from now, the Chinese space station Tiangong-1 will re-enter the Earth's atmosphere where it will to a large extent burn up. It is possible that some debris will reach the Earth's surface. Tiangong-1 is orbiting the Earth uncontrolled at a speed of approx. 29,000 km/h.Currently the prognosis relating to the time of impact currently lies within a window of several days. The scientists at Fraunhofer FHR have already been monitoring Tiangong-1 for a number of weeks with their TIRA system, one of the most powerful space observation radars in the world, with a view to supporting the German Space Situational Awareness Center and the ESA with their re-entry forecasts.
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Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP, provider of research and development services for OLED lighting solutions, announces the founding of the “OLED Licht Forum” and presents latest OLED design and lighting solutions during light+building, from March 18th – 23rd, 2018 in Frankfurt a.M./Germany, at booth no. F91 in Hall 4.0.
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For the first time, an interdisciplinary team from the University of Basel has succeeded in integrating artificial organelles into the cells of live zebrafish embryos. This innovative approach using artificial organelles as cellular implants offers new potential in treating a range of diseases, as the authors report in an article published in Nature Communications.
In the cells of higher organisms, organelles such as the nucleus or mitochondria perform a range of complex functions necessary for life. In the networks of...
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