New digester mixing system delivers better yields for Eco Verde Energy
Yet around 15 years ago when the UK was falling over itself in the rush to create seemingly ‘easy’, lucrative biogas, and funding was often only possible for what was considered ‘proven technology’, numerous Continental-style package plants were invested in; lock, stock – and mixers.
As with all equipment types, you get what you pay for. There are some extremely well-designed submersible mixers out there that will provide long-lasting service – but the feedstock in the United Kingdom wasn’t automatically going to consist of manure and maize, so no surprise perhaps, that with lower grade mixers installed during the biogas goldrush, there were going to be some casualties.
A biological process doesn’t take too kindly of course to the huge amount of downtime caused by taking the dome off of a...