TREATMENT OF WASTE PRODUCTS WITH ANAEROBIC DIGESTION

TREATMENT OF WASTE PRODUCTS WITH ANAEROBIC DIGESTION

A process for treating WWTP sludge comprising the steps of, feeding the WWTP sludge at 1-5%TS to an anaerobic digester (82), operating the anaerobic digester (82) at 4-6% TS and providing at least a portion of the digestate of the digester for recuperative thickening by way of a side stream thickene...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: Juan Carlos, Josse
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:A process for treating WWTP sludge comprising the steps of, feeding the WWTP sludge at 1-5%TS to an anaerobic digester (82), operating the anaerobic digester (82) at 4-6% TS and providing at least a portion of the digestate of the digester for recuperative thickening by way of a side stream thickener in a side stream loop. A polymeric thickening aid (D) is added to the at least a portion of the digestate in the side stream loop, wherein the polymeric thickening aid (D) is added at 3 kg/MT-TSS or less.