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Glossary (R)

Updated on

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.

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Recirculating bed reactor RBR

Reactor configuration based on a recirculating media bed, usually sand
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Recycle ratio

Ratio of the recycle flow rate to influent sludge flow rate in a dissolved air flotation process
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Residence or retention time

Period of time the solids or liquid are retained in the reactor
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Resource recovery rate

Rate at which an embedded sludge resource (water, nutrients, biogas, etc) is recovered
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Return liquors

Liquid stream from anaerobic digestion or sludge solid−liquid separation process returned to the wastewater treatment works inlet
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Rotary drum thickening RDT

Sludge consolidation by allowing water to drain through a porous rotating drum
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Rotary dryer

See rotating drum dryer
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Rotary press RP

Dewatering technology based on a cylindrical vessel housing two slowly-rotating circular screens which are sandwiched together
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Rotating cone reactor RCR

Reactor configuration used for fast pyrolysis based on a rotating cone
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Rotating drum dryer

Convective dryer based on a rotating drum through which hot air passes axially to dry the sludge particles
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This page was last updated on 23 April 2021

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