Purification

SERFILCO pioneered the use of activated granular carbon canisters in a chamber positioned downstream of the primary filter system to purify filtered solution. Because adsorption of organics through the carbon is most effective at low flow rates in order to maximise efficiency we suggest that a ‘bypass’ is fitted between the primary filter and downstream carbon chamber. This permits a controlled volume of clean solution to be diverted through the column of the carbon as required, or as many customers do, on a continuous low flow. This type of system gives two different ways of carbon treating

For continuous carbon treatment. Simply open the bypass valve between chambers a small amount and allow a percentage of the pump flow to continuously pass through the carbon chamber and back to process tank (the remainder of the flow will continue to pass through the filter chamber and back to process tank).

For batch carbon treatment the valve between the filter chamber and carbon chamber is closed during normal operation, when organic contamination reaches increased levels the bypass valve is fully opened and 100% of the flow passes through the carbon until the organics are removed

This innovative SERFILCO design eliminates down-time, labour intensive powdered carbon treatments, inefficient carbon discs and cartridges and lost chemistry due to constant manual change outs and carbon treatment.

• No downtime – no need to stop production when the carbon needs changing, just turn a valve.
• Less labour intensive than traditional methods, easy, quick and efficient
• No messy filter papers and clean-up
• No messy powdered carbon to contaminate the factory area
• Part of planned maintenance
• No more labour-intensive carbon treatment!
• Media available for Organic, Oil and Ion-X purification
• The treatment units are small and usually can be located right at the plating tank.
• Treatment is simple, consisting of pumping solution from the tank, through the treatment unit and back to the tank.

For successful trivalent chromium plating bath operation, SERFILCO provide simple, cost-effective equipment to remove copper, nickel and zinc from the bath without interrupting bath operation. Efficient and cost-effective treatment of contaminant metal ions is readily accomplished using ion exchange technology. The benefits gained include the following:

• Copper, zinc and nickel ions are all removed from the bath simultaneously.
• Treatment can be done during bath operation (no shutdown time required).
• Treatment can be done continuously or intermittently depending on need.
• The treatment units are small and usually can be located right at the plating tank.
• Treatment is simple, consisting of pumping solution from the tank, through the treatment unit and back to the tank.
• Regeneration of the ion exchange resin takes about two hours and occurs about every week to two weeks for a properly sized treatment unit.

Options exist for acid, alkaline and de-min water feeds for regeneration