Apparatus for on-site production of nitrate ions

A facility in which nitrate ions are produced on-site and brought into contact with an aqueous system used to inject a water solution into an oil reservoir, comprising:

• (A) an integrated system that is comprised of (i) an extraction device for extracting water and natural gas in proximity to said facility and extracting oxygen and nitrogen from ambient air at the facility, and (ii) a chemical reactor for processing and reacting said water, natural gas, oxygen and nitrogen to form nitrate ions;
• (B) a delivery device, physically interconnecting said integrated system to said aqueous system, capable of continuously delivering said ions into contact with the aqueous system;
• (C) a controller that is operably connected to each of said extraction device, said chemical reactor, and said delivery device and which is configured to control speed and volume of the nitrate ion production;
• and
• (D) a sensor, operably connected to the controller, for monitoring the concentration of said ions in the aqueous system.