Plasma

Plasma Technology for Purifying Waste Water

Currently, plasma technology has extensive application in the field of surface treatment and ecological engineering. Plasma technology has been primarily proven as an alternative component of ventilation technology to purify or reduce odors in kitchen exhaust for both commercial and private use, as well as in industrial exhaust. No matter whether it concerns private or commercial kitchen exhaust or even exhaust air from industry, odors and pollutants are not only unpleasant, but they can also be detrimental to human health.

As an alternative to UV-C technology, oxytec has developed its plasma technology to provide compact ventilation systems from high-quality 1.4301 stainless steel for a wide variety of private and commercial applications and installation locations (integrated directly into the kitchen or roof-mounted).

Plasma technology can be easily described in a few words:

Plasma is created by applying energy to a stream of air. The exact level, i.e., the power of the applied energy, is the precise amount needed to knock a critical amount of electrons in the air flow from their atomic shell. The result is plasma – a mix of atoms, molecules, and ions surrounded by free electrons. Plasma is highly reactive resulting from the production of electrons supplemented with ions and radicals (hydroxyl radicals) described above, which makes it possible to oxidize odorous substances.

Plasma technology’s system – whether for private or commercial use – is always based on the same principle.

PRE-CLEANING:

Together with a highly absorbent sponge having the same dimensions as a woven filter, two so-called pre-cleaning filters, i.e., 9-ply woven filters (mesh filters), filter out coarse contaminants before the following stages of purification. The downstream electrostatic filter filters out additional grease that was not caught during the pre-filtering. Suction: an EC ventilator (electronically controlled, i.e., a frequency converter is unnecessary) creates the necessary suction and also ensures streamline airflow through the plasma modules installed downstream.

PLASMA OXIDATION:

The plasma modules – or the electrons, respectively – produce the plasma and cause the oxidation process for odors or residual substances contained in the exhaust air (e.g., grease).

CATALYST:

Activated carbon causes the absorption of residual odors and grease not oxidized in the plasma modules. Then, the ozone that was created in the plasma modules is absorbed by the activated carbon. If the pre-filtering works well, the cartridges with activated carbon can be used for a very long time.

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