Marius Blajan

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This paper presents an original device for the electrification of granular mixtures in vibrated zigzag-shaped pipes. Spatial movement of the granules introduced in the pipes is controlled by varying the oscillation amplitude and the frequency of a slider-crank mechanism. In the first set of experiments, two sorts of granular plastics (ABS and HIPS) were(More)
Pollution of the atmosphere from various sources, including factories and automobiles, is a serious problem worldwide and should be controlled and reduced. Nonthermal plasma is studied by various groups and has been applied for exhaust gas treatment and indoor air purification. Microplasma, which is atmospheric pressure nothermal plasma, has recently been(More)
Inactivation of microorganisms, such as <i>Escherichia coli</i>, by exposure to a microplasma is experimentally investigated. A microplasma is an atmospheric-pressure nonthermal plasma. Microplasmas, which generate high-intensity electric fields, can be formed using relatively low discharge voltages (0.7-1.1 kV) across small discharge gaps (0-100 ?m). The(More)
Microplasma can be found in many applications. The technology is also used for surface treatment of polymers. The process of surface treatment by microplasma is environmental friendly, and it could be realized at low cost due to the relatively low discharge voltage (around 1 kV) even under atmospheric pressure and the small size of the power supply and(More)
Microplasma has advantages of reducing the power and downsizing the entire plasma system. Decomposition of formaldehyde (HCHO) by a microplasma reactor was demonstrated for improving indoor air quality. One experimental investigation used a one-pass treatment (5 L/min), and the second used a large-volume treatment (1500 L/min). The removal ratio of HCHO(More)
This paper aims at evaluating several electrostatic separation techniques that could be effective for the recovery of mica flakes from pegmatite ores characterized by grain sizes <0.5 mm: 1) triboadhesive separation; 2) dc electric field separation; 3) ac electric field separation; 4) corona field separation using a grounded metallic roll electrode and(More)
Decomposition of formaldehyde (HCHO) by a microplasma reactor in order to improve Indoor Air Quality (IAQ) was achieved. HCHO was removed from air using one pass through reactor treatment (5 L/min). From an initial concentration of HCHO of 0.7 ppm about 96% was removed in one pass treatment using a discharge power of 0.3 W provided by a high voltage(More)
Sterilization of micro-organism, such as Escherichia coli, is experimentally investigated by using microplasma. Microplasma is suitable for practical application of sterilization, since its discharge voltage is low and its apparatus could be small and inexpensive. In this study, Gram-negative Escherichia coli HB101 and Gram-positive Bacillus subtilis JCB(More)
Microplasma has the advantage of reducing the discharge voltage compared with other atmospheric plasmas. It is generated at atmospheric pressure at only around 1.0 kV since its discharge gap is on the order of micrometers. The experiment was performed with air and argon as the process gases, to confirm the influence of different radical species in the(More)
Microplasma technology was used in many applications from biomedical to surface treatment of polymers. A new application could be the surface treatment of glass panels for the electronic industry in order to improve the surface wettability. The remote microplasma method is proposed for the surface treatment of glass. It can be easily applied as an(More)