Peraulis clâf
- Anaerobic co-digestion,
- sonication,
- thermal pretreatment,
- BMP
Cemût citâ
Ristret
Anaerobic co-digestion of sewage sludge with Organic Fraction of Municipal Solid Waste (OFMSW) appears to be an interesting solution to increase the biogas production of WWTP (WasteWater Treatment Plant) under-loaded digesters. In this study developed by the Department of Chemistry, Physics and Environment of Udine University, the co-digestion process potential of two companies in the Friulian region (AMGA - Azienda Multiservizi SpA and NET SpA) was analyzed and investigated by several laboratory tests. In order to achieve an integrated solution to upgrade the Udine WWTP towards co-digestion and maximize the biogas production, different pretreatments were tested in bench-top reactors. Sewage sludge and organic waste were treated by different techniques: ultrasound and thermal treatment were chosen to enhance the solubilization of particulate matter and make it available to bacterial metabolism, optimizing the anaerobic process as a whole. To verify the effectiveness of these pretreatments, BMP tests (Biomethane Potential Tests) were carried out.
Riferiments
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