Allegheny County Republican Pushes Natural Gas-Fueled Buses, In Campaign Spot

I sub­mit­ted a ques­tion about the “pro­duced water” or waste water that comes back up with the gas.
Can this fracked water be fil­tered, dis­tilled, or treated so it can be made safe for human con­sump­tion?
It is my under­stand­ing that once you mix alco­hol, ben­zene, xylene, ester, glycerine’s with water, you can’t sep­a­rate them by any means.  It is what is known as anisotropic mix­tures, which can’t be sep­a­rated by any known means, chlo­ri­na­tion, acti­vated char­coal fil­ters.  And we are talk­ing about 4 mil­lion gal­lons of water each time a well is fracked.  So how is this safe, clean and economical?