I think that most of us have seen too much of what has sounded too good to be true and has turned out to be. This is not specifically directed at you, but healthy scepticism exists.

I have no doubt that if instead of making unsubstantiated claims here, that if you provide a peer-reviewed report with explanation of the process along with at least a pilot-scale demonstration there will be corporations beating a path to your doorstep for licensing.

Regulations to lower sulphate (and sulphides) in NPDES discharge permits is also beginning in Oil and Gas production with produced water discharges as permits are being renewed. Some of these discharges have been in operation since the 1930s. This industry's biggest concern, until recently, was TDS and oil and grease. With lower sulphide and sulphate permit limits, the oil and gas production industry has little options other than remove the sulphur as H2S early in production, and see what options are available for residual sulphide/sulphate removal prior to discharge.

Regarding the characterization of flow-back and produced water from oil and gas operations, we are preparing to conduct and ASTM round-robin by ICPOES for Ba, Ca, K, Li, Na, P, S, SiO2 and Sr. This work is intended to support base-line and ongoing monitoring of domestic and commercial groundwater wells for possible impacts in the vicinity of these operations and will also be useful for ARD characterization.

Let me know if you need any help with the round-robin.