Patent ID: 7887762
Filing Date: 2011-02-15
Classification: C01B

Abstract:
1. A sparging apparatus for treating contaminates within a contaminated sub-surface comprising: (a) an injection point injector for injecting ozone into one or more injection points within said contaminated sub-surface; (b) a high pressure ozone source for providing a high pressure ozone gas mixture that comprises an oxygen carrier gas having an ozone gas concentration of about 5 percent or greater by weight of ozone gas; (c) a high-pressure pulse storage tank coupled to said high pressure ozone source for temporarily storing said ozone gas mixture, produced by said high pressure ozone source; (d) a valve coupled between said high-pressure pulse storage tank and said injection point; (e) a controller for causing said valve to open and transport said ozone gas mixture within said high pressure pulse storage tank into said injection point injector when pressure of said ozone gas mixture in said high-pressure pulse storage tank reaches a high discharge pressure site-specific set-point, and for causing said valve to be closed when pressure within said high pressure pulse storage tank decreases to a minimum injection pressure needed to induce gas flow.