Keep a spray bottle of diluted hydrogen peroxide, one part hydrogen peroxide to one part water, near your sink or where you will be washing the vegetables. Spray them lightly with the solution, then scrub them as you normally would, and rinse them well. This will kill more bacteria from the soil then a simple water wash.
To clean vegetables with hydrogen peroxide, you can pour the peroxide onto a sponge then scrub the vegetables with the sponge. Be sure to rinse the veggies thoroughly after scrubbing. You could also make a solution with 1 cup hydrogen peroxide to 4 cups water in a bowl, soak the veggies for 5 minutes, scrub then rinse thoroughly before eating.