Small-Scale Biosolids Composting
A row of new wood chips is put down, then topped with layers of finished compost and biosolids. Feedstocks are mixed with a Brown Bear aerator attached to a skid loader.

Cambridge, Ohio retrofitted a portion of its vacuum assisted drying beds into a covered composting facility, processing about 300 dry tons/year of biosolids and wood chips.
Nora Goldstein
BioCycle October 2013, Vol. 54, No. 10, p. 37