Biochemical methane potential (BMP) tests were used to compare
microalgae anaerobic biodegradabilitywith and without flocculants addition.
For this reason, BMP testswere performed in triplicatewith samples
of flocculatedmicroalgal biomasswith Ecotan and Tanfloc (with the
optimal dose for each flocculant), together with a sample without flocculant
(control). Blank trials containing only inoculum were also performed.
Digested sludge from a full-scale anaerobic reactor located in
a municipal wastewater treatment plant near Barcelona (Spain) was
used as inoculum at a substrate/inoculum ratio of 0.5 g COD/g VS, defined
as the optimal ratio by