sludge

n. mud, muck, mire, ooze, slush; any semiliquid messy substance; processed waste

SLUDGE (Scripting Language for Unhindered Development of a Gaming Environment) is a shareware adventure game engine developed by Hungry Software. It combines a scripting language with other IDE tools (including a sprite bank editor and a floor region editor). Freeware and commercial adventure games can be created with the engine.
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For other meanings see: Sludge (disambiguation).Sludge is the residual semi-solid material left from industrial, water treatment, or wastewater treatment processes.When fresh sewage or wastewater is added to a settling tank, approximately 50% of the suspended solid matter will settle out in about an hour and a half. This collection of solids is known as raw sludge or primary solids and is said to be "fresh" before anaerobic processes become active. Once anaerobic bacteria take over, the sludge will become putrescent in a short time and must be removed from the sedimentation tank before this happens.
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Noun
1. the precipitate produced by sewage treatment
(hypernym) precipitate
2. any thick messy substance
(synonym) slime, goo, gook, guck, gunk, muck, ooze
(hypernym) substance, matter
(hyponym) sapropel

(n.)
Small floating pieces of ice, or masses of saturated snow.
  

(n.)
See Slime, 4.
  

(n.)
Mud; mire; soft mud; slush.
  

A semi-solid residue from any of a number of air or water treatment processes; can be a hazardous waste.