elen

Activity 4.3

Study of the anaerobic digestion of biowaste in pilot scale at the experimental hall in Treviso in Italy  

In the framework of Activity 4.3, the investigation of anaerobic digestion of biowaste has been initiated since 01.11.2012 as envisaged in the original plan, by using synthetic biowaste samples and starting-up and operating anaerobic mesophilic and thermophilic reactors. The comparison between mesophilic and thermophilic anaerobic digestion of synthetic biowaste is conducted at the pilot hall of the University of Verona in Treviso, Italy.

It should be stressed that the synthetic biowaste samples used in the AD system was set through biowaste composition analysis that are being performed in various households in the target areas despite the fact that the source separation scheme of biowaste hasn’t been initiated yet. Since after the deployment of the biowaste scheme (i.e. 30.06.2014) further analysis will be performed on biowaste in order to provide the necessary feedback for the continuation of the AD process.

It must be stated that no significant deviations is expected between the synthetic biowaste samples and the actual biowaste composition in the target areas since the experimental methodology that is being followed foresees a procedure for the collection of representative samples of biowaste produced in the areas under examination.

The future activity plans to achieve stable operating conditions and prolonged (at least 2-3 HRT). In particular, the anaerobic process will continue to be monitored in order to evaluate the stability and yields in the long term, to determine the removal efficiencies of solids and organic matter through calculations of mass and energy balances, considering which of the two processes is the most efficient and convenient to be implemented in full scale.

You can download the relevant Deliverable 4-4 here.

During autumn-winter 2014-15 the psychrophilic anaerobic digestion of synthetic biowaste is conducted at the pilot hall of the University of Verona in Treviso, Italy.