L6Solids_updated_supercedes_L6

L6Solids_updated_supercedes_L6 - WaterQuality:FocusonSolids...

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    Water Quality: Focus on Solids  Characteristics EVEG 3110 September 12, 2003
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    Physical Characteristics of Water Solids Concentration Suspended Dissolved Turbidity Color Temperature Taste & Odor
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    10 -4 10 - 3 10 -2 10 -1 1 10 100 Dissolved Colloidal Suspended Settleable Particle Sizes 
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    Settleable Solids  (>100 microns) Determined by 1 hour settling test in a glass Imhoff Cone Unit of measure is ml/L Used to determine the sludge volume approximately that will be produced when a sample is settled
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    Suspended Solids (>1 microns) Solids with a particle size that will allow them to eventually settle Widely used to characterize solids content of waters, very important standards criteria Units – mg/L, ppm Common abbreviations TSS (Total suspended solids) VSS (Volatile Suspended solids)
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    TSS Benchmarks 0.1 mg/L drinking water 5 mg/L clear stream 20 mg/L classical secondary effluent target 20 mg/L Eutrophic lake 100 mg/L Mississippi River 200 mg/L typical domestic wastewater
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    Colloidal Solids (0.001-5 micron) Particles that are so small that they will not settle in a reasonable time Cause cloudy water Can display special chemical properties Colloidal chemistry Common unit of measure Turbidity (NTU, JTU) Secchi disk (meters) Also contribute to Total Dissolved Solids Colloidal solids generally demand coagulation/flocculation for removal
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This note was uploaded on 05/20/2010 for the course EVEG 3110 taught by Professor Malone during the Spring '10 term at LSU.

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L6Solids_updated_supercedes_L6 - WaterQuality:FocusonSolids...

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