2025 Nelsen Corporation Catalog - Catalog - Page 107
Aldex CR26 4
Aldex CR26 is a special media designed
to provide excellent catalytic properties
required for removal of many contaminants
from potable and non-potable aqueous
streams. Aldex CR26 is an insoluble media
that oxidizes species in solution including
hydrogen sulfide, iron and manganese.
Metal-oxide nano-particles are precipitated
within the resin bed where they form very
strong chemical bonds with arsenite (As III)
and arsenate (As V). This allows Aldex CR26
to thoroughly and effectively remove arsenic
along with Fe, Mn and H2S.
Chemical Free Regeneration - CR26 does
not require chemicals such as chlorine
dioxide, potassium permanganate, chlorine
or sodium chloride brine solution for
regeneration. The oxidative chemical locked
inside CR26 beads is regenerated via the
dissolved oxygen in the backwash water.
Potable and Non-Potable Water Applications
- CR26 requires less contact time and is like
standard softening resins in bulk density and
handling making it an ideal choice for pointof-entry (POE) systems.
CR26 can be backwashed at lower flow
rates to achieve ideal bed expansion
General Guidelines
1. The media can treat water having an iron content above 10 ppm,
but the process is not economical particularly for large flow rates.
Hence it is recommended to remove iron by pretreating the water
by aeration, followed by clarification and filtration. CR26 shall
then be used as a polishing media.
2. Free chlorine should be removed before passing water
through the media.
3. The treated water from Aldex CR26 will have an iron
content of
1.2 mm % ........................................................................ 5.0 maximum
