eco: N-Nitrogen
eco: N-Nitrogen
An Innovative Solution for Nitrogen Recovery and Climate Impact
eco:N is EkoBalans’ technology for nitrogen extraction as ammonium sulfate (NH₄)₂SO₄. eco:N offers a sustainable alternative to traditional biological nitrogen removal processes, which, unlike eco:N, convert plant-available nitrogen in residual streams into nitrogen gas. This prevents the return of nitrogen to the cycle. Biological nitrogen removal requires a large amount of energy and, in addition to nitrogen gas, produces the potent greenhouse gas nitrous oxide, which has 300 times the warming potential of carbon dioxide.
The eco:N-process
In the eco:N-process, ammonium nitrogen is stripped and crystallized with the addition of sulfuric acid. Ammonium sulfate is harvested as solid crystals.
Extracted Nitrogen
The extracted nitrogen is highly pure in terms of contaminants such as heavy metals, as only substances that can transition into the gas phase are carried through to the crystallization step. eco:N -extracted nitrogen can replace commercial fertilizer nitrogen, which has high greenhouse gas emissions during production and also requires fossil energy sources, the availability of which is limited.
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