Ultra Pure Water

3 Separation SystemsYour Purification Partner

Electro-deionization (EDI) combines two, well established,

water treatment methods; electro-dialysis and ion exchange

bymeans of ion exchanger resins. This technique makes it possible

anode to remove dissolved salts without chemical regeneration, at

low cost in terms of the energy used.

ELECTRO DEIONIZATION

Before being fed into the electro-deionization module the

permeate produced by the reverse osmosis system is divided into

three sub-streams. The EDI feed water is passed through the diluate

chambers, which, are filled with ion exchange resin. Through the

action of the electric field the anions migrate through the resin bed in

the direction of the anode. As a result they pass through the anion-

permeable membrane and arrive in the adjacent stream of

concentrate. The cations migrate through the resin bed in the

direction of the cathode, pass through the cation-permeable

membrane, and so likewise enter the stream of concentrate. With

the concentrate stream, the ions are expelled from the module. The

electrolyte stream flushes out the gases that are created at the

electrodes, along with the ions, and carry them cut of the module.

As a result of the electrical voltage, water splitting occurs in the

resin bed of the diluate chamber The H+ and OH- ions that are

needed for the regeneration of the exchange resin are created.

These regenerate the resin bed on an ongoing basis. In this way

continuous operation can be maintained, without any need to switch

oft the system for regeneration purposes.

Description of the EDI process

Steam generators

Laboratories

Pharmaceutical industry

Semiconductor industry

Optics industry

Glass costing

Metal processing industry

Applications requiring ultra-pure water

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Areas of application

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Chemical / Waste Process

Waste Water Treatment

Plating Bath Purification

Plating Rinse Recycling

Precious Metal Recovery

Ultra Pure Water

3 Separation SystemsYour Purification Partner

105, Vakharia Industrial Estate

Ram Mandir Road, Goregaon (W)

Mumbai - 400104, INDIA.

Tel : +91-22-32201863

Cell: +91-98923 45754

3sepsys@gmail.com

www.separationsystems.in

3 Separation SystemsYour Purification Partner

Waste Water Treatment

Flow Diagram

Equalization & Neutralization

Precipitation & Coagulation

Flocculation

Clarifier, Inclined Plate:

Filter PressSand/Carbon

Filter

FLOW CHART OF WASTE WATER TREATMENT

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Automotive part suppliersJewelry mfgMachine tool mfg.Metal forming such as stamped metal parts that require plating of various types. Building materials, cadmium plated nuts, bolts etc.. AerospaceWire forming - nails, screws etcAppliance makersElectronics – gold and silver plating of electrical connectors etc.

Electroplating shops, captive or independent

Typical industries include:

Hormon Free Dairy

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Enviromental Justice

Natural Resourse

Stewardship

Social Environmental

Energy Effieciency

Incentives for use of

natural resourses

Envireonmental Economic

Education

Community

Social Cost Savings

Economic Growth

Research &

Development

Economic

Sustainability

Natural Resource Use

Ennironmental Managament

Pollution Prevention

Envirenmental

Business Ethics

Fair Trade

Economical-Social

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Energy Efficiency

PACKAGED SYSTEMS :

3 Separation Systems has a great deal of experience and technical knowledge in designing custom packaged systems for your

wastewater treatment needs. We dedicate a great deal of time and effort to ensuring that the system we recommend will be a

great fit for your application, and will be cost effective as well.

Fully engineered skid mounted treatment systems are an excellent choice for fully automatic, reliable wastewater treatment

in a compact, easy to install and use package.

Systems can be configured for a wide variety of wastewater conditions, making them the most versatile systems available.

Treatment systems come complete with all the components integrated and skid mounted to make a complete wastewater

treatment system. The integral chemical mixing and separation chambers, automatic pH adjusting system, chamber mixers,

chemical pumps, sludge dewatering, and system control panel are included.

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Chemical Reaction Systems :

We manufactures following reaction systems.

pH adjustment

pH neutralization

multi-stage chemical reaction systems

flash mix and flocculation systems

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Advanced Wastewater Treatment Solutions :

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Disinfection

Activated Carbon

Filtration

Ion Exchange

3 Separation SystemsYour Purification Partner

Plating Bath Purification / Recovery

Chromic Acid Bath Purification

Chromic Acid Rinse Water Recycle

Nickel & Copper Recovery

Precious Metal Recovery

Spent Pickling Bath Purification

Chromic acid baths are used in metal working plants for plating and

passivation of metal surfaces. A typical spent chromium plating bath

contains about 300 g/L of chrmic acid and 25 g/L of Cu+2, Fe+3 and Cr+3

cause of the dissolution of a small amount of the metal piece being plated

results in high current densities, decreased bright range,?increased

tendency to burn, rough and pitted deposits. Even chromic baths used for

aluminum are also can be treated cause they are having concentration of

100 g CrO3/L and 10 g Al2O3/L. This baths treated with ion exchange

systems will have longer running life results in overall economic of the

plant.

These rinse water contain about 20 to 200 ppm of chromates with

metal impurities(Cu+2, Fe+3 and Cr+3) at 5 to 50 ppm levels. This chromic is

recovered with ion exchange system to get it back to the main plating bath

while effluents are converted into clean demineralized water which will be

taken back to the rinsing tank.

In all plating shops where Ni & Cu plating is carried out, these is wasted

in terms of rinse and waste water. The concentration of these metals can be

found in the ppm level to gms level for different industries in generally

acidic forms. This are treated to take the metal back to the main plating

bath.

The high price of noble or precious metals such as gold, platinum and

silver makes a high dent to the economic of such plants. Systems are very

small and compact in design with high efficiency to reduce the leakage to

ppt levels. The metal is then recovered by incineration in powder form.

The hydrochloric acid used for the pickling process gets contaminated

with Fe2+ and Zn2+ .At these chloride concentrations Zn2+ forms anionic

complex, ZnCl4. Iron(Fe2+) forms such complexes but at very high HCl

concentrations (>9N) while Fe3+ forms such complexes at 1.5 N HCl. The

purification process will be double benefit since it produces ferric chloride

which can be used for waste water treatment and HCl is recovered for bath.

Reduces Metal purchases

Reduce waste treatment costs

Lower operating costs

Increase productivity

Reduce power usage by 25%

Eliminate defects

Provide consistent bath performance

Improve quality

99% recovery from rinses

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Benefits

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IX column

Acid dosing station

Caustic dosing station

Dilution pump

Valves and fittings

Instrumentation and

automatic control

Feed pump

General Systems IncludesSpent Pickling Bath Purification

Copper Recovery

Nickel Recovery

Chromic Bath / Rinse Water Recycle

Precious Metal Recovery