Sediments and sand in the biogas digester: accumulation, operational impact and management
Sediments are the slowest problem a digester has: they build up for years without showing themselves, and one day it turns out the reactor has 15 % less volume than the project says. They come from the sand in slurry, the fines in WWTPs and the calcium and struvite precipitates. In a slurry plant without […]