Definitions of sludge on the Web:
- the precipitate produced by sewage treatment
- any thick, viscous matter
- unpleasant viscous oozy sewage ejection
- Sludge is a 2005 documentary film by Appalshop filmmaker Robert Salyer chronicling the Martin County Sludge Spill that was an accident that occurred after midnight on October 11, 2000 when a coal sludge impoundment in Martin County, Kentucky, broke through an underground mine below, propelling ...
- Sludge is the residual semi-solid material left from industrial, water treatment, or wastewater treatment processes.
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