Patent ID: 11926547
Assignee: AQUACYCL, INC.
Field: Environmental technology (Chemistry)
Classification: CPC C  H  Y | IPC C  H

Claim 0:
1. A device for sulfide removal from water or wastewater, comprising:
a manifold structure including a plurality of openings to flow air out of an interior of the manifold structure;
one or more support structures connected to the manifold structure, wherein the one or more support structures are configured to float the manifold structure on a surface of a fluid, which is a water or wastewater, or to partially submerge the manifold structure below the surface of the fluid;
an air source configured to supply air to the manifold structure to be flowed out from the manifold structure through the plurality of openings at the fluid to facilitate sulfide in the fluid to oxidize; and
a support material coupled to the manifold structure to facilitate growth of sulfide-oxidizing bacteria to create a biofilm, wherein the support material includes a plurality of voids such that the support material enables the sulfide-oxidizing bacteria to be in direct contact with the fluid at or below the surface,
wherein the device is configured to expel the air from the plurality of openings of the manifold structure at the fluid to remove sulfide from the fluid by micro-aeration, such that the air supplied by the air source is configured to provide an amount of oxygen gas within a shallow depth of the fluid between 0 cm to 5 cm from a top surface of the fluid, and wherein the amount of the oxygen gas in the air expelled from the device within the shallow depth of the fluid comprises less than 0.1 mg/L of oxygen (O2).