Suspended particle destabilization in retained urban stormwater as a function of coagulant dosage and redox conditions

• Published in: Water research (Oxford) Vol. 42; no. 4; pp. 909 - 922
• Main Authors: Sansalone, John J., Kim, Jong-Yeop
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.02.2008; Elsevier Science
• Subjects: alum; Alum Compounds - chemistry; Applied sciences; Best management practices; Chlorides; Cities; coagulants; coagulation; electrical conductivity; Exact sciences and technology; ferric chlorides; Ferric Compounds - chemistry; Flocculation; gravity; hydrochemistry; isoelectric point; Other industrial wastes. Sewage sludge; Oxidation-Reduction; Particle Size; particle size distribution; Pollution; Rain; redox potential; Retention; Storage; Stormwater; stormwater management; suspended particles; total suspended solids; TSS; turbidity; urban areas; Waste Disposal, Fluid; Wastes; Water Movements; Water Pollutants - chemistry; water treatment; Water treatment and pollution; Zeta potential; Particle size; Storage; TSS; Zeta potential; Best management practices; Stormwater; Retention; Iron III Chlorides; Urban area; Waste water; Batchwise; Flocculation reagent; Watershed; Turbidity; Electrokinetic potential; Aluminium sulfate; Aerobe; Runoff water; Sediments; Suspended particle; Particle size distribution; Isoelectric point; Flocculation; Trend analysis; Physicochemical purification; Storm water

Source area runoff entrains a hetero-disperse particle size distribution (PSD). When retained for clarification, larger sediment and settleable particles are mainly influenced by gravitational forces, while the suspended particles, in particular the clay-size particles, are subject to coagulation ph...