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WATER
TREATMENT
Ammonia is used in several areas of water and wastewater
treatment, such as pH control, in solution form to regenerate weak anion
exchange resins, in conjunction with chlorine to produce potable water, and as
an oxygen scavenger in boiler water treatment.
Acid
Neutralization:
is used in the following
areas:
 | Petroleum
refining areas |
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Metallurgical
& Mining operations |
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Chemical
Processing |
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Wet
battery manufacturing & rebuilding operations |
Acid
Neutralization on an industrial scale is usually accomplished by the
treatment of acidic solutions by the manual or automated addition of a
basic (alkaline) compound.
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Anhydrous
Ammonia is a strong base and is added to acidic solutions as vapor or
liquid. |
Advantages
of Ammonia in Acid Neutralization
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Ammonia
adds no additional salts to a solution, eliminating solid precipitates
and sludge that must be handled as bulk wastes and can become very
costly. |
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Ammonia
can be used in various other processes in the plant. |
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Ammonia
provides fast neutralization. |
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Fast
neutralization allows more accurate control and less waste. |
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Minimum
equipment requirement. |
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Minimum
handling and labor requirement. |
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Minimum
maintenance due to reduced corrosion to valves, piping and controls. |
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Minimum
space requirement for total system. |
Equipment
for Acid Neutralization when using Ammonia
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A
manual system with a portable pH meter can be installed if
neutralization is done on a batch basis. |
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More
complex automated systems can be designed and built to meet the
requirements of the situation. |
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Systems
can be designed and installed utilizing cylinder manifolds or bulk
ammonia systems. |
Liquid
vs. Vapor Ammonia for Acid Neutralization
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Liquid
ammonia is used for acid neutralization systems that require large
quantities of ammonia over a short period of time. |
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Vapor
is limited due to the rate of liquid ammonia vaporization.
However, the installation of a vaporizer can aid in maintaining the
vapor withdrawal rate. |
PH
Control
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Ammonia is used
to increase pH in Pharmaceutical, Ore Flotation & Food Industries. |
Anhydrous
Ammonia for Acid Mine Drainage
Ammonia
is commonly used as a neutralizing agent for acid discharges associated
with coal mining. The
continuous treatment method is used where vapor is injected at the
entrance channel to the pond where it is evenly dispersed into the pond.
Advantages
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Ammonia
is a very cost effective and an operationally efficient chemical. |
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The
rapid and complete reaction of ammonia with water makes accurate feed
control possible resulting in minimal waste. |
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Ammonia's
flexibility to be added as a vapor or liquid is a great advantage for
plants that wash several different seams of coal where each has a
different effect on pH control. |
Equipment
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ASME
Coded Storage Tank - for ammonia storage. |
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Steel
Pipe Lines - to prevent corrosion in the lines. Ammonia is incompatible
and corrosive with many other metals. |
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Needle
Valve - for feed control. |
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Check
Valve - to prevent water from coming back in the line and
contaminating the storage system. |
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Vaporizer
- is needed in winter weather when the surrounding air is cold causing
pressure to drop in the tank, decreasing the vapor withdrawal
rate. The vaporizer will heat the liquid ammonia changing it to
vapor, maintaining the vapor feed rate. |
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Proportioning
Valve and Proportioning pH Controller - allows control of feed rate
when gradual changes occur in water flow rate. |
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pH
Probe - a built-in safeguard that shuts down the system preventing
excessive amounts of ammonia discharging into the receiving stream if
pH reaches the high set point. |
Water
Chlorination Process
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Water
Chlorination is a waste-water treatment process that uses continuous
chlorine treatment to achieve high standards of bacteriological
quality and improvement in other water treatment processes. |
Applications
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Potable
water treatment |
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Disinfection
of new or repaired mains, tanks, reservoirs and wells. |
Chlorine-Ammonia
Treatment
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Chlorine
is added to water containing natural or added ammonia. The
ammonia reacts with the HOCl to form various chloramines that retain
the oxidizing power of the chlorine. |
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It
is used in the water disinfection process to destroy harmful and
"nuisance" organisms, including disease producing,
pathogenic organisms. |
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The
combination of chlorine and ammonia produce a more stable disinfecting
residual than chlorine alone. |
R.
M. Technologies Inc. is an
industry leader in the field of ammonia system integration. We will provide the
conceptual
design, fabrication,
turnkey procurement,
installation, system training, system start-up,
scheduled preventative maintenance programs, safety training,
regulatory
assistance with PSM,
RMP and General
Industry program requirements and 24 hour technical response.
Our
equipment design and fabrication includes the ammonia storage and
delivery system, the compressors, condensers, skid
packages, vaporizers
and
monitoring equipment.
R.
M. Technologies Inc.
Phone: 800-775-4280
Fax: 888-533-4884
E-Mail:
generalmail@rmtech.net
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