Pollution Prevention and Control Technologies for Plating
Section 5 - Substitute Technologies
5.7 OTHER CHEMICAL SUBSTITUTIONS
Substitutions made for environmental reasons, not involving the
previously discussed four Cs chemicals, are shown in Exhibit 5-7.
These other substitutions were implemented for two main purposes:
(1) to reduce the mass of metal or other undesirable constituents
in the wastewater and (2) to improve the performance of their
treatment operations by reducing the use of chelating compounds.
As indicated in Exhibit 5-7 nearly all of these substitutions
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