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Case for housing trickling filters
Regulations in State of Minnesota require that biological filters must be housed; illustrated description of two examples; wooden roofs used up to 40 ft diam; prestressed concrete domes for larger sizes.
Case for housing trickling filters
Regulations in State of Minnesota require that biological filters must be housed; illustrated description of two examples; wooden roofs used up to 40 ft diam; prestressed concrete domes for larger sizes.
Case for housing trickling filters
Pub Works
Leibee, H.C. (author) / Ellison, R.J. (author)
Public Works ; 81
1950
Article (Journal)
English
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