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Produce High Quality Sodium Hypochlorite
The Powell Sodium Hypochlorite Filter System provides the highest quality sodium
hypochlorite available in the market and can be used with any quality caustic to
yield sodium hypochlorite that can be packaged for the household market using sealed
bottles, the drinking water industry, or any other application required.
Standard sizes of filters are 100, 200 or 300 square feet.
Any of the filters can be purchased with a reduced number of plates, reducing the
initial cost. For example, a 300 sq ft filter can be supplied with 200 square feet
of plate. Additional plates can be added as flow rate and capacity
Powell also offers filter systems for smaller applications. Contact us for details.
The filter shell and pump are constructed of titanium with fiberglass precoat tank
and PVC piping, providing an expected service life of 30 to 35 years for major components
of the system. All parts of the system are easily repaired and maintained. Typically,
the filter is inspected every 6 to 9 months depending on the type of operation,
and the filter cloth is replaced every 12 months with minimal expense.
Contact Powell today to
discuss your design requirements.
Why Filter Bleach?
Filtering of sodium hypochlorite to remove heavy metals and suspended solids is
required in almost every application. Typically, sodium hypochlorite used in drinking
water treatment and laundry bleach packaged in bottles must be filtered. Other
typical applications that require filtered sodium hypochlorite include wastewater
treatment applications and any sodium hypochlorite stored at the customer’s site
in large tanks where accumulated suspended solids will precipitate with the heavy
metals and settle to the bottom of the tanks. The only filtering method that will
produce the required results for these circumstances is a system that uses a filter
aid in conjunction with additives to the bleach to help complex the metals and suspended
solids. The typical filter aid used in the Powell filter system is perlite. With
a proper choice of filter aids and additives, it is possible to achieve maximum
particle size of approximately 0.2 micron and metal contents of < 0.5 PPM of
iron, < 0.05 PPM of nickel, and < 0.05 PPM of copper. The Powell Sodium Hypochlorite
Filter System is the only packaged system available that offers an engineered system
with guaranteed performance. The system is suitably constructed using titanium
for metal components and PVC and Teflon® as nonmetallic components.