Process for removal of emission gas pollutants by biological means
AssigneeBayer Aktiengesellschaft
InventorFriedrich Schmidt
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Abstract
Method for scrubbing gases containing oxygen, that are polluted by biodegradable substances, by bringing them into contact with an aqueous suspension of microorganisms such that: (a) the period of contact between gas and suspension is 0.5-5 seconds; (b) the suspension is brought into contact with the gas again after a retention time of 3-10 minutes has been attained; (c) the suspension is continuously supplied with active biomass in amounts between 0.5% and 5% of the aqueous suspension whereby (d) the excess suspension is drawn off.
Claims8
Method for scrubbing gases containing oxygen, that are polluted by biodegradable substances, by bringing them into contact with an aqueous suspension of microorganisms such that:
- (a) the period of contact between gas and suspension is 0.5-5 seconds;
- (b) the suspension is brought into contact with the gas again after a retention time of 3-10 minutes has been attained;
- (c) the suspension is continuously supplied with active biomass in amounts between 0.5% and 5% of the aqueous suspension whereby
- (d) the excess suspension is drawn off.
Dependencies are inferred from the claim text.