Analysis of Sludges Generated from Flotation Treatment of Storm Run-Off Waters

摘要

The most feasible process for removal of suspended solids, arsenic, color turbidity, and oil and grease from storm water treatment is either dissolved air flotation (Krofta Supracell) or dissolved air flotation-filtration (Krofta Sandfloat), depending on the effluent discharge standards. The report documents the pretreatment data and the characteristics of floated sludge by dissolved air flotation. The dewatered sludge met the current New Jersey Dept. of Environmental Protection limits on cadmium, chromium, copper, nickel, lead, and zinc for land application.