Ablative reactor
Reactor configuration based on a rotating disc used for fast pyrolysis
Glossary (A)
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Acetogenesis
Biochemical conversion of volatile fatty acids to acetic acid and mineral products
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Acetotrophic
Bacteria which feed off acetate
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Acidogenesis
Conversion of small organic molecules to volatile fatty acids
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AD
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Aerobic
In the presence of oxygen
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Aerobic digestion
Sludge degradation in the presence of oxygen
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After burner
Region above a thermochemical fluidised bed reactor where thermal oxidation takes place
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Agglomerate
Action of agglomeration (v) or a single particle (or floc) formed from a collection of coalesced/aggregated particles
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Agglomeration (of particles)
Coalescence or aggregation of particles to form larger ones
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Air to solids ratio
Mass of air employed per unit mass of sludge solids in a dissolved air flotation process
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Alkaline stabilisation
Stabilisation of sludge based on lime dosing
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Alum
Aluminium sulphate
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Anaerobic
In the absence of oxygen
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Anaerobic digestion AD
Sludge degradation in the absence of oxygen
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Annamox
Anaerobic ammonium oxidation
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Annular gap
Ring-shaped gap between two concentric cylinders
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Antimicrobial resistant genes ARG
Genes which enable microbes to resist chemicals which are designed to attack them
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Archimedean
Type of large screw used for conveying solids or liquids though a cylindrical conduit
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ARG
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Ash
Solid product stream generated from incineration
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Aspect ratio
Length to diameter
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Auger/screw reactor
Pyrolytic reactor configuration using a turning screw to transport the solids through the reactor
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Autothermal
Sustained by the heat generated
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This page was last updated on 23 April 2021
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