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Pollution Prevention and Control Technologies for Plating Operations
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 were successful.