HYDROCHEM PF-D20

ANSI/NSF Standard 60 Certified

DESCRIPTION AND USE

HYDROCHEM PF-D20 is a medium- low molecular weight coagulant DADMAC product with a very high degree of cationic charge.  It reacts readily in its diluted form to provide superior coagulation and performance in a variety of solids/liquid separation processes.  It is supplied as a 20% solution of polymer in water.

PRINCIPAL USES

HYDROCHEM PF-D20 has been designed as a coagulant for potable water treatment.  It has been proven especially effective for processes where enhanced sedimentation or filtration is necessary or where a reduction of turbidity, color, BOD/COD, or similar pollutants is necessary. 

CERTIFICATION

HYDROCHEM PF-D20 is certified under ANSI/NSF Standard 60 for use in the treatment of drinking water with use levels of up to 50 mg/L.

APPLICATION & STORAGE

Recommended solution concentrations:

HYDROCHEM PF-D20 can be metered directly into the wastewater stream and mixed in-line by static mixing.  If solutions are to be prepared, typical dilution concentrations of 0.25%-5% product as supplied are recommended.

Recommended storage periods:

The product as supplied should be stable under normal conditions of 40-85 ºF for at least two years.  If preparing and storing solutions, solutions greater than 1% can be stored for 2-5 days, whereas, solutions less than 1% should be prepared fresh after 1-2 days.

Storage of the product and solutions for longer than the recommended periods may be acceptable under the correct conditions but could result in some loss of product efficiency.  Product should be stored in a cool place, and conditions of extreme temperatures should be avoided.  Packages should be kept sealed when not in use.

CORROSIVE PROPERTIES

Corrosion towards most standard materials of construction can be low to moderate.  Stainless steel, fiberglass, polyethylene, polypropylene. and rubberized surfaces are recommended.  Avoid using mild steel, galvanized steel, aluminum, and copper containing alloys.

Physical Properties

Appearance                      Clear, colorless to light straw colored liquid

Solids Content                  20%

Specific Gravity                1.04

pH (as supplied)               ~7

Viscosity                          ~120 cps

Viscosity (1% soln.)          <5 cps