Cold Plasma

What is Cold Plasma?
"Purifying Plasma"
By utilizing the principles of photochemistry, cold fusion plasma,
and photoionization, contaminants, both organic and biological can be removed
from the air and surfaces.
While these methodologies have been well studied and documented by
the scientific community, the synergy of their interaction produces a unique and
a superlative way of providing a true "real time" technological system for
ensuring superior indoor air quality.
To ensure that these affects are distributed throughout the
facility being addressed, we utilize the HVAC system
which act as the "heart and lungs" of a building.
Photochemistry is the chemical reaction
or change in material caused by exposure to light energy.
The process typically requires the use of photons in the
ultraviolet spectral range.
Ultraviolet radiation serves to excite or
cleave chemical bonds and leads to the desired photoinduced reaction
Energetic ultraviolet radiation is useful for disinfection
proposes. For this application, the fundamental physical requirement for the
ultraviolet light source is sufficiently high photo energy (wavelength) at the
required intensity.
When sufficient photo energy is present, ultraviolet light becomes
particularly useful in the destruction of contaminating organic compounds.
Almost all indoor contaminants are organic.
Organic compounds are carbon based. Many common organic compounds
are based on the carbon and hydrogen combination, or hydrocarbons.
Hydrocarbons can be toxic volatile organic
compounds such as formaldehydes and benezenes.
Airborne, indoor dust particles like dander, hair, dust mites
feces, etc. Are based upon organic compounds generally associated with the lipid
group. Biological contaminants Re bacteria, viruses, and fungi are carbon based
Photochemistry can break down these harmful
organic molecules. Ultraviolet light with enough energy such as in the
100-280 manometer wavelength can break down the electron bonds of an organic
molecule. The shorter the wavelength the more energy created to break molecular
bonds.
All organic material is photodegradable at certain
wavelengths.
LJV wavelengths in the 100-280 manometer bandwidth not only break
down electron bonding of an organic molecule, but also initiate the formation of
a cold gas plasma.
A plasma is an excitation of gas by radio frequency energy. In our
case, we excite gases by the energy from ultraviolet light waves. We create a
highly energized gaseous state.
The plasma, or highly energized gaseous state, is aggressive and
highly reactive and contains excited atoms and molecules, ionized gases,
radicals, and free electrons.
It
can destroy just about all organic contaminants.
The destruction mechanism primarily involves the photodissociation
of molecular oxygen leading tot he formation if highly oxidizing species, such
as atomic oxygen, molecular singlet oxygen and activated oxygen. These agents interact with contaminants converting most to
volatilized carbon dioxide and water. The LJV radiation also creates
electron ejection of organic molecules that produces additional free radical
creation.
The radicals react with oxygen producing hydroperoxide ions. The
hydroperoxide process activates a chain reaction with organic compounds
triggering further oxidation. When additional hydrogen is added as in the form
of water vapor ( humidity), the highly oxidative species hydroxyl radicals is
created
These radical ions are stable but a very potent o-ne-clectron
oxidant.
They are very destructive to organic contaminants because they
steal hydrogen atoms from the organic materials, leaving decaying carbon ions.
The theft of hydrogen from organic molecules forms even stronger
hydroxyl radical bonds with even higher oxidation potential.
This entire process turns into a chain reaction - the breakdown
and formation of new hydroxyl radicals results in the continual decay of organic
material.
While the photoelectric effect created by high energy ultraviolet
light is ejecting electrons forma molecule, it is further enhanced by
irradiating what is called a "photoelectron emitting membee'with ultraviolet
light.
A photoelectron emitting member may be made of any material that
emits photoelectrons upon exposure to ultraviolet radiation.
Such a photoelectron emitting member is contained in our
technology.
The photoelectrons ejected from the photoelectron emitting member
are used to charge fine particles in a gas which are then removed form the air
stream as they attach to oppositely clwged surfaces.
This electrically charging dust and other particulates can remove
particles as small as .00 I micron. It should be noted that
each of the electron ejections can cause multiple ionization events. For
example, in the photoelectric effect, the photon undergoes only one interaction,
yet thousands of ionizations can be caused by the resultant electron and its
products.
The combination of ultraviolet light and plasma has been
reported to be an extremely potent in removing contaminants from
surfaces.
As an example and for comparative purposes, it has been estimated
that removing biological contaminants from surfaces by corona discharge created
ozone may take IO hours.
Ultraviolet light in the highly bacterial range of 253.7
manometers would take I hour for the same result. Corona discharge ozone and
ultraviolet light combined would achieve the same result in 1.5 minutes. However, the use of a broader and more energetic ultraviolet
bandwidth combined with the resulting plasma would clean the same surface in 20
seconds
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APPLICATIONS FOR COLD PLASMA
TECHNOLOGY
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(REACTIVE, PRO-ACTIVE AND RETRO-ACTIVE MEASURES)
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3. REMEDIATION
4. RESTORATION PROJECTS
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7. HOTEL AND MOTEL APPLICATIONS - IAQ APPLICATIONS
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10. MOLD INSPECTION CERTIFICATION CLASSES
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ISSUES:
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B. REALTORS
C. ARCHITECTS
D. BUILDING ENGINEERS
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