Ion exchange system with external regeneration KR 30 – 250 (Recirculation systems)

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Ion exchange system with external regeneration

Download brochure ion exchange unit (pdf, 1546 kB)

For our water treatment installations we offer ion exchange cartridges with fillings from 10 litres resin up to 250 litres resin.

With our service regeneration we offer an economy-priced, fully developed technology. A 2-shift operated recirculation system with a flow rate of 1.5 m³/h saves expenses for fresh water of approx. 30,000 € per year.

The ion exchange systems are used for

• recirculation of rinsing water

• selective ion exchange for the removal of heavy metals / pollutants

The transportation of the ion exchange cartridges to our central regeneration plant in D-92348 Berg can be carried out by our pick-up / delivery service or by a forwarding agency. For this we offer special transportation boxes.

Figure: Decker ion exchange units

Figure: Decker ion exchange units

Recirculation systems

• reduce the demand of fresh water

• avoid waste-water

• are easy to handle

• are applicable up to 70°C

Applications of recirculation systems

Circulation of rinsing water

• Immediate reduction of water in the waste-water treatment unit.

• The waste-water treatment unit will be kept clear of critical substances if rinses with complexing agents, cyanidic or chromate loaded water are circulated

• Recirculation systems improve the quality of rinsing water

• The reduction of expenses for fresh water will almost completely bear or even exceed the expenses for regeneration.

Circulation of the last rinse in a sequence up to 70°C

• considerable reduction of energy costs as the rinse water doesn’t have to be heated all the time

• a combination of activated carbon, cation exchange and anion exchange produces pure water of high quality (conductivity < 1 (Achtung kleiner/gleich) µS/cm) and allows for stain-free drying.

Circulation of pure water < 0.1 µS/cm

• our regeneration service realise an economic circulation of pure water

• because of the minimal loading of the ion exchange resins the installations have a long operating time
  

Circulation of rinsing water loaded with precious metals

• complete reclaim of precious metals (Au, Pd, Pt, Ag) from rinsing water

• expenses for regeneration are considerably lower than the credits for the precious metals

• smaller companies may be able to do completely without a waste-water treatment unit.
  

Figure: desalinisation of galvanical rinse water (recirculation), source: Lanxess

Example of use:

Bath sequence (nickel coating), degreasing-static rinse-flow rinse-pickling-nickel bath-static rinse-flow rinse

Due to the demineralisation of the rinsing water 2 cartridges with 30 litres resin each are loaded per week

Figure: Example of use Decker ion exchange unit on rinse water

Technical Data

Resin: 30-150 litres per cartridge
Capacity: 40-400 eq/cartridge
Flow rate: 500 – 10,000 litres/h
Max. pressure: 6 bar
Temperature range: 5-70°C

Material

• Inliner made of polyethylene with glass-fibre reinforced epoxy resin

• Polyester resin or vinyl ester resin

• Distribution system made of polypropylene

The continuous function of the Decker ion exchange units is backed by the regeneration of loaded ion exchange cartidges.

Download brochure ion exchange unit (pdf, 1546 kB)

Decker Verfahrenstechnik GmbH
Am Roethenbuehl 7, 92348 Berg/Opf., Germany
Web: http://www.decker-vt.de E-Mail: info@decker-vt.de
Phone: +49 (0)9189/4410-0 Fax: +49 (0)9189/4410-20

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