CarbonSeal and Hydrogen Sulfide Removal
CarbonSeal has been used successfully to remove hydrogen sulfide
from water, air, oil wells, factory stacks, ground water, waste
water, garbage and medical waste. It typically removes 92% to 99.3%
of hydrogen sulfide.
Hydrogen sulfide (or hydrogen sulphide) is the chemical compound
with the formula H2S. This colorless, toxic and flammable gas is
responsible for the foul odour of rotten eggs.
It often results from the bacterial break down of organic matter
in the absence of oxygen, such as in swamps and sewers (anaerobic
digestion). It also occurs in volcanic gases, natural gas and some
well waters. When released as a gas, it will change into sulfur
dioxide and sulfuric acid. In some instances, it may be released
as a liquid waste from an industrial facility.
When removing hydrogen sulfide, every application varies in the
required amounts, concentrations and methods.
For example, in sewage treatment, a 100% concentrate is sprayed
in a mist directly onto the source, at a rate of one part CS to
10,000 parts sludge to remove hydrogen sulfide, if left for between
18-24 hours; but for sewage treatment odors, a 1:50 ratio can be
used in an automatic fogging system over the holding tank.
In the stagnant water, use 200 liters of CarbonSeal for each 1000
square meters.
In the oil and gas industry, hydrogen sulfide causes other problems.
Because it is toxic, it poses a risk to workers. Because it is acidic,
it can damage pipes. Natural gas can contain up to 90% hydrogen
sulfide.
In wells, up to 99% of the hydrogen sulfide can be removed by bleeding
the gas out of the well through a 3 inch pipe where CarbonsSeal
is injected to react with the gas. The mixture is then bubbled through
a drum containing water.
Lint filter traps kept continuously wet with a 50/50 mixture of
CarbonSeal and water have also proven effective as a containment
of hydrogen sulfide released through vents in factories and oil
wells.
A few of the factors that can cause variations in applications
include:
- Temperature
- Air flow
- Iron content
- Carbon content
- Organic element content
- Tank size
- Discharge rate
Because of this, the best success can be achieved through experimentation,
varying methods and concentrations.
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