B3I1O1S1O1L1I1D2S1
12 points
BIOSOLIDS is validvalid
BIOSOLID, solid organic matter obtained from treated sewage [n]
BIOSOLID, solid organic matter obtained from treated sewage [n]
BIOSOLID, solid organic matter obtained from treated sewage [n]
BIOSOLID, solid organic matter obtained from treated sewage [n]