Evoqua Water Technologies Pte. Ltd.

Siemens Water Technologies Pte. Ltd.

Siemens Industry, Inc.

Timothy Frank Matheis

James Paul Harshman

Eric Carl Hansen

Yunjie Zhang

Julie Ward

Winsel E Middleton

David L Morano

Michael Sumner Murphy

Narahari Narasiah Kramadhati

A system for removing undesirable compounds from contaminated air includes a biofilter having sintered glass media. Hydrogen sulfide is removed from contaminated air by passing the contaminated air through the biofilter.

Use of porous glass media for a biofilter to remove odorous compounds from an air stream

A method of providing sustained odor control in an extended sewer line is disclosed. The method includes measuring at least one parameter of the sewer line including average wastewater volume, flow rate, and retention time and administering a blended composition which includes an immediate release compound and an extended release compound into the sewer line to control concentration of an odorous compound therein. A method of facilitating sustained odor control in an extended sewer line is also disclosed. The method includes providing the blended composition including the immediate release compound and the extended release compound and instructing a user to administer the blended composition to the sewer line control concentration of the odorous compound therein. A system for providing sustained odor control in the extended sewer line including sensors to measure sewer line parameters and a controller to instruct administration of the blended composition is also disclosed.

Blend for odor control

A system for removing undesirable compounds from contaminated air includes a biofilter having porous glass media. Hydrogen sulfide is removed from contaminated air by passing the contaminated air through the biofilter.

A system for removing undesirable compounds from contaminated air includes a biofilter having a fuzzy logic based controller. A contaminant, such as hydrogen sulfide, is removed from contaminated air by passing the contaminated air through the biofilter.

Biofilter with fuzzy logic control

A system for removing undesirable compounds from contaminated air includes a biofilter having a fuzzy-logic based controller. A contaminant, such as hydrogen sulfide, is removed from contaminated air by passing the contaminated air through the biofilter.

An odor control composition may be dosed to a wastewater treatment system to control hydrogen sulfide levels. The composition may include a sulfide-reducing agent and an oxidizer. Synergy between the compounds of the odor control composition may facilitate efficient reduction of hydrogen sulfide levels. The sulfide-reducing agent and the oxidizer may be present in a single odor control composition or may be dosed to the system separately.

Synergistic methods for odor control

The invention can provide or facilitate systems and methods for feeding a slurry and, in particular, to systems and methods for treating wastewater streams with a slurry having periodic flushing of conduits.

Slurry feed system and method

Systems and methods for wastewater treatment. A nitrate source may be dosed to a collection tank, such as a wet well, for downstream control of hydrogen sulfide levels in the wastewater. A source of a strong oxidizer may also be dosed to the wet well. The oxidizer, such as chlorite, may temporarily interrupt denitrification processes in the wet well to prevent floatation of undesirable constituents therein. The oxidizer dosage may be generally consistent with the nitrate dosage. An ORP sensor may facilitate regulation of dosing. The nitrate and the oxidizer may be present in a single mixture to be dosed to the wet well.

Growing community of inventors

Palmetto, FL, United States of America

Timothy Frank Matheis