Process and installation for anaerobic digestion and degradation of ammonium
By concentrating ammoniacal nitrogen through evaporation and condensation followed by controlled bioreactor treatment, the process addresses ammonia overloads in anaerobic digestion, enhancing efficiency and reducing costs and greenhouse gas emissions.
FR3162744A1Inactive Publication Date: 2025-12-05SUEZ INTERNATIONAL
Patent Information
- Application Number
- FR2024005811
- Authority / Receiving Office
- FR · FR
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-12-05
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
The invention relates to a process for the anaerobic digestion and nitrogen reduction of an effluent, said process comprising: - an anaerobic digestion step (102) of the effluent in a digester (4) producing digestate and ammoniacal nitrogen, - a degradation step of ammonium ions (106) from the digester in an ammonium ion degradation bioreactor (24), characterized in that it comprises a step for extracting the ammoniacal nitrogen (104) formed during the anaerobic digestion in which: - a first fraction of the contents of the digester (4) is taken, - the taken fraction is subjected to evaporation and condensation to produce an aqueous solution enriched in ammonium ions, and in that at least a portion of the aqueous solution enriched in ammonium ions is sent to the bioreactor (24) to supply at least a portion of the ammonium ions to be degraded. Figure 1
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Citation Information
Patent Citations
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