Can brushing with baking soda be abd to do on a regular basis, wear away enamal, or whiten teeth?

Both. Brushing with baking soda once a week is an ok practice for whitening. However, it is an abrasive agent. Constant use of this could be a little too abrasive. It hasn't been approved for daily use by the American Dental ociation. It is ok to use once or twice a week for a good scrubbing. However, for a safer bet, get a ADA approved whitening toothpaste.