Removal and Separation of Spilled Hazardous Materials from Impoundment Bottoms.

摘要

A demonstration was conducted of a system for removing spilled hazardous materials from pond bottoms and separating the hazardous materials and suspended solids from the resulting dredged slurry. The removal system consisted of a MUD CAT dredge. The processing system consisted of a pair of elevated clarifier bins in series, a bank of hydrocyclones, a cartridge filter unit,and a Uni-flow bag-type fabric filter. The MUD CAT proved efficient in removing particulate simulated hazardous materials from the pond bottom without imparting a substantial amount of turbidity to the water. The processing system was effective in removing particulate simulated hazardous materials from the processing stream and also in removing most of the pigment from a latex paint which was tested. A conceptual portable system for processing at 1500gpm was prepared. This system consisted of a scalping-classifying tank combined with spiral classifiers, Uni-Flow filter,and an inclined tube settler.