Conveyance of Water and Wastewater Residuals

by
Sludge Treatment, Utilization, Reclamation and Disposal Committee, ASCE


Abstract: The treatment of water and wastewater results in the production of significant quantities of residual suspended solids which must be further processed prior to discharge/disposal. Invariable, the processing stages involve the separation of liquids from the suspended solids and in doing so, change the characteristics of the residual matter. The processing may result in changes from a solid/water mixture (sludge/slurry) to cakes of high viscosity and ultimately to minimal moisture (dried) at the ultimate solids concentration. The purpose of this presentation is not to describe the means of achieving various levels of solids concentrations, but rather to define operable and efficient means of conveying the residuals form one point to another in the solids processing stream. It is a further objective to classify the solids with varying states of moisture content in a manner such that the appropriate equipment can be selected to transport the residuals for further processing/disposal.

Subject Headings: Solid mechanics | Water discharge | Turbidity | Wastewater treatment | Industrial wastes | Mixtures | Sludge

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