Abstract
A pilot study was performed at the Fox River Fiber recovered paper processing company in DePere, Wisconsin, to determine the extent to which injection of oxygen and ozone could reduce the high chemical oxygen demand, COD, in the effluent and the effectiveness of the ozone/oxygen stream in suppressing production of hydrogen sulfide gas in downstream sewage lines. Adaptive Ozone Solutions, LLC, supplied the oxygen/ozone generation and injection system. Samples were analyzed both before and after oxygen/ozone injection. Hydrogen sulfide gas was continuously monitored at sewer stations downstream of Fox River Fiber. Results showed that with a very short contact time, effluent COD was reduced by over 15%. A simple kinetic model predicts that a contact time of fewer than 30 minutes could reduce COD by as much as 60%. In addition, downstream hydrogen sulfide gas production in the sewage mains was also better controlled, such that costly Bioxide applications could be reduced.
Highlights
Introduction and Literature ReviewIn a growing world, it is increasingly more necessary to treat municipal and industrial wastewaters using environmentally green technologies
Fox River Fiber Company does not pretreat its effluent water prior to discharge to the Green Bay Metropolitan Sewerage District (GBMSD) system and, must pay the sewerage district to compensate for the load associated with such high COD levels
Addition of a high pressure oxygen/ozone stream to the effluent discharged by Fox River Fiber Company to the GBMSD system reduced COD sent to GBMSD by FRF by over 15% despite a very small contact time
Summary
A pilot study was performed at the Fox River Fiber recovered paper processing company in DePere, Wisconsin, to determine the extent to which injection of oxygen and ozone could reduce the high chemical oxygen demand, COD, in the effluent and the effectiveness of the ozone/oxygen stream in suppressing production of hydrogen sulfide gas in downstream sewage lines. Adaptive Ozone Solutions, LLC, supplied the oxygen/ozone generation and injection system. Samples were analyzed both before and after oxygen/ozone injection. Results showed that with a very short contact time, effluent COD was reduced by over 15%. Downstream hydrogen sulfide gas production in the sewage mains was better controlled, such that costly Bioxide applications could be reduced
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
