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Electrocoagulation
Applications for
Electrocoagulation
Produced Water Treatment:
Produced
water is a term used in the oil & gas industry to describe water
that is produced when oil and gas are extracted from the ground.
Oil and gas reservoirs have a natural water layer (formation
water) that lies under the hydrocarbons. Oil reservoirs
frequently contain large volumes of water, while gas reservoirs
tend to have smaller quantities. To achieve maximum oil recovery
additional water is often injected into the reservoirs to help
force the oil to the surface. Both the formation water and the
injected water are eventually produced along with the oil and
therefore as the field becomes depleted the produced water
content of the oil increases. Electrocoagulation is used as an
extremely cost effective and scalable treatment for the reuse of
produced waste water.
Frac
Water Treatment:
Frac Flowback
Water Treatment is a treatment that uses gel also known as a
proppant. A proppant is a solid material, typically treated sand
or man-made ceramic materials, designed to keep an induced
hydraulic fracture open, during or following a fracturing
treatment. It is added to a fracking fluid which may vary in
composition depending on the type of fracturing used, and can be
gel, foam or slickwater-based. Electrocoagulation has been used
as a successful treatment of fracking gels and should be
considered in any water treatment management of hydraulic
fracturing.
Ground Water Cleanup:
Electrocoagulation is extremely effective in the removal of
naturally occurring salts in well water, as well as the
separation of iron, magnesium, calcium, metals, nitrates and
sulfur. EC is also well suited for the reclamation of ground
water that has been contaminated with heavy metals, high
molecular weight hydrocarbons and haliginated hydrocarbons.
Surface Water Cleanup:
Electrocoagulation is used to remove bacteria, viruses and cysts
from surface water, thereby rendering contaminated waste streams
into potable water. EC is particularly effective in the removal
of life threatening contaminants such as giardia and
crypotosporidium.
Process Rinse Water and Wash Water:
EC routinely remediates process and rinse water from the
electroplating, computer board manufactures, textile industry,
paint rinse water, steel production, mining industry, automotive
industry, equipment repair industry, stack wash water, and pulp
and paper. In most cases, the treated water can be recycled and
reused.
Sewage Treatment:
Electrocoagulation has proven effective in treating sewage
water, sewage sludge concentrations, and sewage sludge metal
fixation sufficiently to enable land application.
Cooling Towers:
EC is used to
pretreat water entering towers as well as blow down water to
remove algae, suspended solids, calcium, and magnesium buildup,
thereby eliminating costly replacement water.
Radioactive Isotope Removal:
Metal ion isotope removal from cooling water at a nuclear power
plant site demonstrates another effective application of
electrocoagulation.
Water Pretreatment:
Water
pretreatment with EC has proven effective in removing bacteria,
silica and TSS prior to subsequent polishing with reverse
osmosis, ultrafiltration, nanofiltration, photocatalytics.
Water Reuse Resulting in Zero Discharge:
EC cost
effectively treats electroplating rinse water, stream cleaners,
pressure washers, mining, food processing, drilling mud, etc.
Food Processing Industry:
Meat, poultry, fish, total plant effluent to harvest additional
protein and fat for sale, salad oil, beverage, potato
processing, vegetable washing, equipment washing.
Antifreeze Regeneration:
The removal of
metals, oils, and dirt, from the antifreeze. Large fleet users
include governments, mining companies, bus companies, trucking
companies, service stations, auto dealerships, etc.
System
Capabilities
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Removes heavy metals as oxides
that pass TCLP
Removes suspended and colloidal
solids
Breaks oil emulsions in water
Removes fats, oil, and grease
Removes complex organics
Destroys & removes bacteria,
viruses & cysts
Processes multiple contaminants
- Textile and Dye
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Key Applications
Ground water cleanup
Process rinse and wash water
Potable water
Sewage treatment
Cooling towers
Radioactive isotope removal
Pretreatment for reverse osmosis, ultra filtration, nanofiltration, photocatalytics
Water reuse resulting in zero discharge
Metal recovery
Influent quality water control
Industrial waste water
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Benefits
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Capital cost significantly
less than alternative
technologies
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Operating cost significantly
less than alternative
technologies
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Low power requirements
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Generally no chemical
additions
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Metal oxide formation
passing TCLP
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Low maintenance
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Minimal operator attention
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Handles a wide variation in
the waste stream
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Consistent and reliable
results
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Sludge minimization
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Treats multiple contaminants
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