Communal wastewater, after being cleaned in clarification plants, is reintroduced into the water cycle, into rivers, lakes and coastal waters. Special treatment is necessary if, at subsequent points, drinking water is extracted or wastewater is fed back to bathing waters. If the wastewater has a high germ count then the hygienic conditions for bathing become doubtful as there are significant dangers of infection for humans.
In addition to the conventional processes for cleaning water – such as the use of chemicals like chlorine and ozone or filtration systems – the importance of ultraviolet light as a reliable, environmentally friendly and economically viable alternative is ever increasing.
The city of Munich and the State of Bavaria started a project to improve the hygienic water quality of the Isar, to ensure safe bathing during the summer months. One part of the Isar is diverted into the Isar canal and used for energy generation.
As a result, the remaining Isar between Bad Toelz and Freising carries very little water. By introducing cleaned wastewater from the clarification plants in this area the degree of contamination was high, in spite of sufficient treatment, and the water was heavy with pathogens.
The Europe-wide, unique “Clean Isar” project included the decision to use UV wastewater disinfection as the final cleaning stage in the clarification plants which fed the wastewater back into the river.
The aim was to significantly reduce the germ count of the waste waters and so improve the hygienic water quality of the Isar in the bathing season, while meeting the severe EU bathing water regulations.
Heraeus Noblelight offers different UV solutions for water treatment.
The disinfection of water can involve the use of compact medium pressure UV lamps, low pressure UV lamps and high power amalgam lamps.
Follow the link, if you would like to read details about the different UV lamp technolgies for water treatment
Are you interested in details about the project: “Clean Isar – a decision for UV”? Please contact us at firstname.lastname@example.org
Heraeus Noblelight GmbH
Phone +49 6181 35 8539
Fax +49 6181 35 16 8539
Dr. Marie-Luise Bopp | Heraeus Noblelight GmbH
Did you know that the wrapping of Easter eggs benefits from specialty light sources?
13.04.2017 | Heraeus Noblelight GmbH
To e-, or not to e-, the question for the exotic 'Si-III' phase of silicon
05.04.2017 | Carnegie Institution for Science
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
Two researchers at Heidelberg University have developed a model system that enables a better understanding of the processes in a quantum-physical experiment...
Glaciers might seem rather inhospitable environments. However, they are home to a diverse and vibrant microbial community. It’s becoming increasingly clear that they play a bigger role in the carbon cycle than previously thought.
A new study, now published in the journal Nature Geoscience, shows how microbial communities in melting glaciers contribute to the Earth’s carbon cycle, a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
21.04.2017 | Physics and Astronomy
21.04.2017 | Health and Medicine
21.04.2017 | Physics and Astronomy