Can waste water recycled into drinking water REALLY be safe?

The quick answer is yes, however, it might be hard to convince some people to drink it because of the Word "recycled". But factories have been able to recycle, cleanse, and purify water that can be consumed by people. Did you know that some water purifying factories can clean water SO well that they would have to put stuff back in the water for it to be drinkable? ~Apple Juice