METHOD FOR SELECTIVELY TREATING SLUDGE TO REMOVE COMPONENTS THEREFROM

摘要

A system comprising method and apparatus for separating biologically-digestible materials from an influent sewage stream. The system may comprise a primary clarification tank to capture sixty percent or more of the total solids from an influent stream; a sludge classifying press (SCP) to isolate and concentrate biologically digestible materials from sludge formed in the primary clarification tank, releasing valuable organics, such as are found in corn kernels, by fracturing the protective casings; a grit capture mechanism in a chamber within the primary clarification tank and isolated from the bulk of the sludge containing biologically-degradable materials; a grit trap to remove grit from the sludge prior to classifying the sludge with the SCP; apparatus for adding thickener to the sludge after classification and prior to digestion; and automation of one or more elements of the process for separating and digesting the biologically digestible materials in an influent stream.

主权项

1. A method for adaptively and selectively treating sludge in a sludge treatment system to remove components from the sludge, comprising the steps of:
a) first measuring at least one characteristic of said sludge; and b) responsive to results of said first measuring step, first determining whether sufficient grit is present in said sludge to warrant removal prior to further processing.