Mauro Lafratta


Doctoral Practitioner in Sustainability working with Thames Water Utilities ltd

Academic and research departments

Centre for Environment and Sustainability.

My research project

Research

Research interests

Research projects

My publications

Highlights

Lafratta, M., Thorpe, R.B., Ouki, S.K., Shana, A., Germain, E., Willcocks, M. and Lee, J., 2020. Dynamic biogas production from anaerobic digestion of sewage sludge for on-demand electricity generation. Bioresource Technologyhttps://doi.org/10.1016/j.biortech.2020.123415

Publications

Lafratta Mauro, Thorpe Rex B., Ouki Sabeha K., Shana Achame, Germain Eve, Willcocks Mark, Lee Jacquetta (2020) Dynamic biogas production from anaerobic digestion of sewage sludge for on-demand electricity generation,Bioresource Technology 310 123415 Elsevier

The aim of this work was to study the potentials and benefits of dynamic biogas production from Anaerobic Digestion (AD) of sewage sludge. The biogas production rate was aimed to match the flexible demand for electricity generation and so appropriate feeding regimes were calculated and tested in both pilot and demonstration scale.

The results demonstrate that flexibilization capability exists for both conventional AD and advanced AD using Thermal Hydrolysis Process (THP) as pre-treatment. Whilst the former provides lower capability, flexible biogas production was achieved by the latter, as it provides a quick response. In all scenarios, the value of the biogas converted into electricity is higher than with a steady operational regime, increasing by 3.6% on average (up to 5.0%) in conventional and by 4.8% on average (up to 7.1%) with THP. The process has proven scalable up to 18m3 digester capacity in operational conditions like those in full scale.