Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1989-09-19
1990-12-11
Woo, Jay H.
Gas separation
Means within gas stream for conducting concentrate to collector
55 85, 55 89, 210615, B01D 4700
Patent
active
049767518
ABSTRACT:
In a known method for the purification of exhaust air containing impurities which are biologically degradable and difficultly soluble in water, by means of activated sludge washing liquid in an absorption tower, pulverized activated carbon is added to the activated sludge washing liquid. The impurities are initially absorbed by the activated carbon and are subsequently degraded by the microorganisms of the activated sludge. Since the impurities are not transferred directly to the activated carbon, but through the washing liquid, material exchange apparatus having high turbulence are required which have a high energy consumption. By adding a high-boiling, organic solvent, for example, dialkyl phthalate, material exchange apparatus having a low energy consumption can be used, the absorption efficiency is increased and peak loads can be compensated in a buffer-like manner.
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Bushey C. Scott
Keramchemie GmbH
Woo Jay H.
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