The Ecosphere equipment is proven industrial hardware that's been in the oil fields of Arkansas and Oklahoma for over a year now. They have hardware in use on natural gas wells in the most demanding environments everyday. Ecosphere's Florida facility is already geared up for mass production. These guys have their act together!!!!
Not so certain about Costner's equipment. Check out Costner's website (Ocean Therapy Solutions) and compare it to Ecosphere's. The difference between the two is dramatic. Costner's company looks like a small startup website, Ecosphere's is polished and professional. Costner claims 200 gpm and shows no skid type assembly just a centrifuge assembly. Not very impressive at all. Ecosphere's hardware can process between 500-700 gpm. That's 2-3 times that of Costner's.