Clarifier Surface Overflow Rate & Weir Loading Calculator
Size municipal and industrial sedimentation basins: Surface Overflow Rate ($SOR$), Solids Loading Rate ($SLR$), Weir Loading Rate ($WLR$), and hydraulic detention time.
Clarifier Basin Geometry & Type
Typically 50% - 100% of Q for activated sludge
Hydraulic & Solids Loading Rates
Surface Overflow Rate (SOR)
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Solids Loading Rate (SLR)
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Weir Loading WLR
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Detention Time (t)
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Total Area A_surf
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Ten States Standards Design Limits
Max Recommended SOR: 16 - 32 m³/m²·d | Max SLR: 4 - 6 kg/m²·h
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