ECO2 Technology Promotes Sustainability

The effects of climate change are becoming more apparent every year, including its effects on the collection and treatment of wastewater. In response, improved sustainability at all levels is paramount.

By effectively using superoxygenation to maintain aerobic conditions in a force main, the following sustainability objectives are realized:

H2S Odor Prevention (Air Quality Improvement)

H2S Corrosion Prevention (Infrastructure Protection)

No Harmful Byproducts Added (High Purity Oxygen)

Reduced Chemical Budget (Oxygen gas is 1/10th the cost of Nitrate salts)
Methane Gas Prevention (Greenhouse Gas Reduction)

Eco2 Technology Promotes Sustainability
ECO2 - SuperOxygenation Applications

Greenhouse Gas Emissions

Infrastructure for wastewater collections has been identified as a source of GHG (Greenhouse Gas) emissions, with its largest impact from the formation of Methane gas (which is 30 times more harmful to the environment than Carbon Dioxide gas). However, most utilities are just beginning to recognize the GHG emissions from untreated wastewater collections systems.

Methane Reduction Calculations

In 2021 the Water Research Foundation (WRF) completed a report with calculations to quantify the greenhouse gases (GHG) produced in wastewater collections systems. ECO2 has applied the findings from this research to assist water treatment professionals with a better understanding of the positive impacts of effectively preventing H2S and Methane gas formation.

CH4 gas potential in a force main (in kg) = Length x Diameter x 3.452 x 1.06(Temp-20)

(Source: 11/7/2018 Brown and Caldwell, John Willis Ph.D Presented at WEF)

Speece Cone Installation Columbia Theta Midpoint
Methane Reduction Estimate for Proposed Force MainGHG Potential
Methane Gas Potential - Dailyx lbs CH4 /day
Carbon Dioxide Equivalent - Annualx tons CO2 /year
Cars off the road Equivalent - Annualx cars / year

Since Hydrogen Sulfide (H2S) and Methane (CH4) are both generated by anaerobic bacteria in wastewater, satisfying the oxygen demand (with superoxygenation) effectively stops them both by preventing the anaerobic conditions under which both harmful gases are naturally produced.

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