Methods for removing odors from process airstreams

Details Methods for removing odors from process airstreams Methods for removing odors from process airstreams

1989-08-25

1991-02-19

Lewis, Michael L.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423224, 423241, 423243, 4232452, B01J 1000

Patent

active

049942450

ABSTRACT:
After aerating sewage sludge in a composting process, a stream of process air is treated to remove odors therefrom by injecting into the airstream an atomized mixture of dilute sulfuric acid and dilute surfactant to remove ammonia and odorous organic compounds therefrom. The airstream is then oxidized with bleach to remove sulfides and treated with a hydrogen peroxide solution to remove chlorine introduced by the bleach while maintaining the oxidation reaction. A dilution fan is used to further dilute the scrubbed airstream as the airstream is exhausted to the atmosphere.

REFERENCES:
patent: 4125589 (1978-11-01), de Vries

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