| 205 / | HD | ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS |
| 687 | DF | ELECTROLYTIC MATERIAL TREATMENT (PRODUCT, PROCESS, AND ELECTROLYTE COMPOSITION) {8} |
| 742 | DF | .~ Water, sewage, or other waste water {11} |
| 746 | DF | .~.~ Using membrane {3} |
| 748 | | .~.~.~ Plural membranes {1} |
| 749 | DF | .~.~.~.~> With recycle or reuse |