SuPER-W Conference Publication: Comparison of specific methanogenic activity of sludge from full scale mesophilic and thermophilic digesters

Event date:

Tuesday, October 17, 2017 (All day) to Friday, October 20, 2017 (All day)

ESR5 Iryna Lanko attended the 15th IWA World Conference on Anaerobic Digestion (AD-15) in Beijing, China. She presented her most recent work with a poster presentation.

Abstract

There are still some uncertainties in application of anaerobic digestion at different temperature ranges. In this work one of the key parameters such as specific methanogenic activity (SMA) was studied at thermophilic (55°C) and mesophilic (35°C) conditions. The standard method of SMA testing was used with cellulose as a substrate. The sludge was taken from five full-scale digesters operated at Czech wastewater treatment plants. The experiment showed that under thermophilic conditions SMA is significantly higher. SMAs of the mesophilic sludges were 0.10-0.13 grams of CH4-COD per gram of VSS and day whilst the thermophilic ones were equal to 0.21-0.36 grams of CH4-COD per gram of VSS and day.

Reference:

Lanko I., et al (2017). "Comparison of specific methanogenic activity of sludge from full scale mesophilic and thermophilic digesters". IWA World on Anaerobic Digestion Conference, 17-20.10.2017, Beijing, China