sludge


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Related to sludge: Activated sludge, Engine sludge

sludge

 [sluj]
a suspension of solid or semisolid particles in a fluid.

sludge

(slŭdj),
A muddy sediment.
See also: sludged blood.

sludge

(sluj) a suspension of solid or semisolid particles in a fluid which itself may or may not be a truly viscous fluid.

sludge

a suspension of solid or semisolid particles in a fluid.

activated sludge
a means of encouraging biodegradation. See also activated sludge.
References in periodicals archive ?
Main problems in sewage sludge usage would be the presence and accumulation of heavy metals in soils, affecting negatively plant growth and causing biosecurity problems.
The aim of this research is to develop the cement replacement material from waste paper sludge collected from paper pulp industries Kotri, Hyderabad, Sindh, Pakistan.
During exploration several tons of oily sludge has been produced which is dumped in an open pit and causes severe environmental threat to the terrestrial and aquatic life.
In Table 4, the measured average results of heavy metals in the sludge wastewater of treatment in Tabriz with Environmental Protection Agency standards for use in agriculture were compared with the standards of other countries.
This causes rapid sludge development in the engine, leading to severe engine damage.
SVI for both neutral and alkaline medium sludge was 39 and 40 respectively.
Workers at the facility design, develop, test and train for sludge retrieval, mastering the retrieval tools, processes and techniques for sludge retrieval in a safe, radiologically clean environment.
Anaerobically digested sewage sludge, obtained from the wastewater treatment plant of the Municipality of Ankara,was added to the plough layer (0-25 cm) of the experimental site in July 2004 at rates of 0 (Control), 4, 8, and 12 t da-1 dry weight and no sewage sludge application was made after this date.
The present study was undertaken to discover any possible effect of iron addition on the anaerobic digestion of the primary-waste activated sludge mixture and phosphorus release during the digestion of the sludge mixture.
In the present research, effects of some natural polymers on sludge dewatering by a vacuum filter has been studied and then their efficiency is compared with those of chemical coagulants.
But as sludge has spread across the country, so have concerns that it may cause as many environmental problems as it solves.
Yet Severn Trent has defended the sludge sales, which are backed by the Government.