Xylem WEDECO SMOevo PLUS Series, Оригинальное руководство

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Manual Ozone Generating System SMOevo
PLUS
Safety
Manual_SMOevoPLUS_eng_01.2019.doc
page 25 of 179
indicators which interrupt the ozone production immediately once
being activated.
Ensure that the monitoring device (measuring sensor) is positioned
at a place where the highest ozone concentration is to be expected
in the event of a hazardous incident (at ground level).
Ensure that no corrosive gases, i.e. chlorine, can enter the
operation room since this would affect the ozone measurement.
Ceilings, walls, and floors must be made of non-flammable
materials. As for systems operated with oxygen, make sure that no
flammable material is stored within a radius of 5 m from the ozone
system.
3.7 Hazardous Substance Ozone
The handling of ozone requires special safety measures which are described in the following
section.
Ozone
•
contains three oxygen atoms
•
is heavier than air
•
is a colorless to blue gas
•
has an intensive odor similar to carnations, hay, or chlorine
•
is difficult to dissolve in water
Ozone is non-combustible. However, it does promote combustion processes.
Ozone oxidizes all metals except for gold, platinum and stainless steel. Organic and
inorganic substances can be oxidized by ozone. With the exception of gold, platinum and
iridium metals are transferred to a higher or the highest oxidation state.
Organic compounds can be degraded up to carbon dioxide and water.
In microorganisms ozone has a disinfecting effect, for the cell membrane is oxidized and thus
the microorganisms will be destroyed.
Chemical and Physical Characteristics of Ozone
Chemical symbol O
3
Density 2.141 kg/m
3
(0°C, 1013 mbar)
Molar mass ≈ 48 g/mol
Boiling point -112 °C
TLV 0.2 mg/m
3
(≈ 0.1 ppm ≈ 0.1 ml/m³)
Smelling threshold value 0.02 mg/m
3
(≈ 0.01 ppm)