Subcritical Water Hydrolysis Treatment for Sewage Sludge Reduction and Energy Recovery by High-rate Digestion
This study was a verifying performance of a demonstration plant installed at an existing sewage treatment plant, where it used a continuous forced circulation type subcritical water reactor to hydrolyze sewage sludge and then performed high-rate anaerobic digestion of the treated slurry, in order to reduce the quantity of the sewage sludge. The results show that sewage sludge was reduced by 53-72%(average 62.5%) on suspended solid(SS) basis. The amount of biogas produced by anaerobic digestion was an average of approximately 10.6Nm3/ sludge-m3. This amount of biogas provided the heat energy needed for the subcritical water treatment. The anaerobic digestion was stable after hydraulic retention time(HRT) 5 days, confirming that it is possible to lower the digester capacity below that of a conventional digester.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Document Type: Research Article
Publication date: 01 January 2010
More about this publication?
- Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed. A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.
WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
- Subscribe to this Title
- Membership Information
- About WEF Proceedings
- WEFTEC Conference Information
- Learn about the many other WEF member benefits and join today
- Ingenta Connect is not responsible for the content or availability of external websites