Поиск

A mass of water or sludge shut up by a dam, dike, floodgate, or other barrier.

Unwanted materials produced in or expelled from the industrial process or operation and categorized under a variety of headings, such as liquid wastes, sludge, solid wast

organic sludge and remains of organisms in an aquatic habitat; in a science about soils - the debris of vegetative matter (humus); in geology a shallow detritus matters i