An apparatus used in sampling and in flue gas cleaning. The gas is passed through
a space containing wetted '
packing' or spray. In general, particles are collected in scrubbers by one or a combination
of the following:
impingement of particles on a liquid medium;
diffusion of the particles onto a liquid medium; condensation of liquid medium vapours on the
particles; partitioning of the gas into extremely small elements to allow
collection of the particles by Brownian
diffusion and gravitation settling on the gas-liquid
interface. The devices include spray towers, jet scrubbers, Venturi scrubbers, cyclonic scrubbers,
inertial scrubbers, mechanical scrubbers and packed scrubbers. Normally the gas flow
in the scrubber is counter to the liquid flow. Efficient scrubbers will collect particles
as small as
to
in diameter.
Source:
PAC, 1990, 62, 2167
(Glossary of atmospheric chemistry terms (Recommendations 1990))
on page 2213
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
