This slide presentation outlines information on testing a new ion exchanger (Polymeric
Ligand Exchanger-PLE) for selective
removal of As(V), and
developing an engineered strategy to
minimize process waste residuals. Topics covered include: arsenate-sulfate breakthrough histories
with a standard IX resin; multi-component breakthrough
histories with PLE; arsenate sorption: isotherms for PLE
and 2 standard resins; efficient regeneration: As(V) elution
history during regeneration; direct reuse of brine for multiple
regeneration cycles; brine treatment and reuse; major composition of a spent
regeneration brine (SRB); removal of As from SRB using FeCl<sub>3</sub>; effect of pH on arsenate removal; effect of calcium addition on As removal; treated brine reuse; effect of Fe addition on waste
residual stability; effect of Ca addition on waste
residual stability; and, conclusions.
| Edition : | Vol. - No. |
| Number of Pages : | 26 |
| Published : | 06/17/2005 |
