No, that would not be advisible. The word here in the U.S. is to toss it, and that is exactly what is being done everywhere I have seen. Leafy greens, being highly susceptible to bacterial contamination to begin with, are difficult to decontaminate and salvage. The reasons some other contaminated fruits and vegetables can be salvaged easily by sanitizing with light bleach is that they can later be peeled and then cooked.