There are always oil spots near the petrol stations. Rainwater washes them away, polluting the environment. Researchers from Perm have developed a refining unit for cleaning rainwater sewage from petrol stations. It was successfully tested in Moscow and Perm.
The unit base is a new filter - "Kombi" - made of fibrous carbon sorbent, which is produced by coagulation of chemical cellulose fibres in a special way. The filtering process consists of three stages - settling, refinement through the mechanical filter and two-stage sorption extra refinement. At first, rainwater gets into the settling unit - a huge vat, where big insoluble particles of mud settle on the bottom.
The settled water is then refined through the mechanical filter - metal net. It clears the water from smaller particles. After the first two stages the suspension concentration is diminished by one hundred times. Then comes the two-stage refinement. Water gets twice through the "Kombi" filters with carbon fibrous substance, which extracts oil-products out of it. After these three stages the water becomes one and a half thousand times clearer.
Irina Marutsenko | alphagalileo
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27.03.2017 | Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung
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Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
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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...
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