Abstract:
: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 18 m3 digester capacity in operational conditions like those in full scale.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Lafratta M,Thorpe RB,Ouki SK,Shana A,Germain E,Willcocks M,Lee Jdoi
10.1016/j.biortech.2020.123415subject
Has Abstractpub_date
2020-08-01 00:00:00pages
123415eissn
0960-8524issn
1873-2976pii
S0960-8524(20)30687-8journal_volume
310pub_type
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