Cake
Concentrated product from dewatering
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Having problems with our terms and abbreviations? Use Ctrl+F to search our list of glossary items below. Contact us if you find a sludge abbreviation or glossary term you think it would be useful to add.
Cake
Concentrated product from dewatering
Cake compressibility
Extent to which a filter cake compresses with applied pressure
Calorific content or value
Latent energy of a material, normally expressed in units of mega-Joules or kWh per unit mass of material
Carbonisation
Low-temperature thermochemical treatment in the presence of water and absence of air favouring the formation of hydrochar as the primary product
CAS
CD
Centrate
Diluted (water) stream from centrifugal sludge separation operations
Centrifugal dewatering CD
Sludge dewatering by using centrifugal forces to separate solids of higher density than water
Centrifugal thickening CT
Sludge consolidation by using centrifugal forces to separate solids of higher density than water
CFB
CHP
Circulating fluidised bed CFB
Reactor configuration used in thermochemical treatment based on a recirculating bed of sand fluidised by upward-flowing air
Co-disposal
Disposal through combination with some other waste product(s)
Coagulant
Inorganic/mineral chemical used to carry out coagulation
Coagulation
Aggregation or agglomeration of suspended solids to form larger particles (aggregates or flocs) through destabilisation of the particles using inorganic/mineral chemicals
Colloid
Particles or macromolecules in the sub-0.1 µm size range
Colloidal
Colloid-like properties
Combined heat and power CHP
Engines used to generate usable electrical and thermal energy from a heat source
Combustion
Alternative term for 'incineration'
Composting
Aerobic digestion process, based on natural recirculation of air under ambient conditions
Conditioning
Use of chemicals or heat to make sludge more dewaterable or biologically treatable
Conduction (or direct) dryer
Dryer using externally-heated surfaces to dry the sludge particles
Consolidated/consolidation
Increased solids concentration
Constant-rate drying conditions
Continuous stirred tank reactor CSTR
Reactor design widely used in the activated sludge process where mass transport is promoted evenly throughout the reactor volume by mixing
Convective (or indirect) dryer
Dryer using heated air or steam to dry the sludge particles directly
Conventional activated sludge CAS
Classical, widely-employed process for aerobic wastewater treatment
CSTR
CT
This page was last updated on 23 April 2021
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