In order to maintain aerobic conditions in a force main, the DO level at the start of a force main must often be higher than the saturation DO level in the wet well. For example, a lift station pumping 500,000 gpd through a 12-inch, 10,000 foot force main with an oxygen uptake rate of 0.08 mg/L/min will require a DO level at the start of the force main of about 56 mg/L in order to maintain aerobic conditions upon discharge. This is accomplished by aerating under pressure, driving more oxygen into solution than is possible in an open vessel.
Gener-Ox
Gener-Ox
Uses for Gener-Ox:
• Uses FM Pressure to produce DO levels much higher than otherwise possible.
• Aerobic control for 10 + miles of FM conveyance.
• Eliminates Sulfur Reducing Bacteria (SRB’s).
• Prevents formation of sulfides and resulting odor concerns.
• Prevents sulfuric acid formation and resulting corrosion.
• Removes anaerobic biomass that can constrict force main flow.
• Eliminates anaerobic shock loading of WWTP.
Based in Spokane washington, IER is a manufacturer and distributor of innovative environmentally friendly process water and wastewater treatment chemicals and equipment. Speacialing in sodium-free wastewater acid neutralization, which improves solids settling, and sludge volume reduction.
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Inland Environmental Resources has developed a proprietary super-oxygenation technology called Gener-Ox, which is designed to convert anaerobic effluent streams to a fully aerobic environment. By converting these problem systems from anaerobic to fully aerobic conditions, anaerobic organisms are unable to survive and simply expire.
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The basic function of the Gener-Ox system is to convert the anaerobic biology of a pressurized force main into a strongly aerobic biological environment. This will cause Sulfate Reducing Bacteria (SRB's) which are the principal cause of odors and corrosion in an anaerobic transport environment to encapsulate and quickly expire.
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How IER's Gener-Ox™ System Works:
Hydrogen sulfide is naturally generated by Sulfate Reducing Bacteria in an anaerobic environment. Depending on the chemical nature of the sewer line, a force main can become a sulfate-rich anaerobic environment. Therefore, the sulfide problem is the result of chemistry and anaerobic microbiology.
The chemical-free Gener-Ox system works on a very simple principle: change the environment, change the biology, change the results.
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Most chemical approaches to the sulfide problem attempt to sterilize the force main using either chlorine or other oxidants or strong alkalis. A newer popular approach is to feed the force main with a nitrate salt which the anaerobes preferentially reduce to odor-free nitrogen.
The Gener-Ox system is the only approach that addresses the root cause of the problem. Gener-Ox inhibits the formation of hydrogen sulfide in the first place by making the force main aerobic, rendering all anaerobes and sulfate-reducing bacteria inactive or nonexistant.
