Anaerobic sequencing batch reactor cover
AssigneeThe Board of Regents for Oklahoma State University
InventorDouglas Wayne Hamilton
Life of this patent
Estimating the term…
Abstract
There is provided herein a roof for a reactor vessel that utilizes a weighted floating cover. The cover is free to move up and down within the vessel as the fluid level changes during the operational cycle. In some embodiment, the cover itself is not directly connected to the reactor vessel or its sidewall, but instead is held in place and supported from above by truss-like support members that permit movement of the cover in concert with the changing fluid level in the vessel. In an embodiment, the support members are anchored proximate to the top of the reactor vessel.
Claims15
An anaerobic sequencing batch reactor, comprising:
- (a) a generally cylindrical reactor tank having an interior, an interior wall, and an exterior;
- (b) a free floating cover positionable to be within said reactor tank,
- said cover having a perimeter that conforms to said interior wall,
- said cover shaped to trap biogas from said tank within said interior,
- said cover including a plurality of conduits passing therethrough, said plurality of conduits at least for performing the functions of releasing said biogas from said inner surface said cover, mixing the reactor content, removal of clarified liquid above the expanded sludge cloud for use in mixing, feeding, decanting, sampling, and sludge or scum removal;
- and,
- (c) a plurality of lateral support arms, each of said plurality of later support arms being in mechanical on one end with said cover and on another end with a roller positionable to be within a corresponding vertical roller guide external to said reactor tank
An anaerobic sequencing batch reactor, comprising:
- (a) a generally cylindrical reactor tank having an interior, an interior wall, and an exterior;
- (b) a free floating cover positionable to be within said reactor tank,
- said cover having a perimeter that conforms to said interior wall,
- said cover shaped to trap biogas from said tank within said interior,
- said cover including a plurality of conduits passing therethrough, said plurality of conduits at least for performing the functions of releasing said biogas from said inner surface said cover, mixing the reactor content, removal of clarified liquid above the expanded sludge cloud for use in mixing, feeding, decanting, sampling, and sludge or scum removal;
- (c) a plurality of vertical roller guides situated external to said reactor tank;
- (d) a same number of lateral support arm assemblies as vertical roller guides, each of said lateral support arm assemblies being in mechanical communication on a first end with said cover and on a second end with a roller, each of said rollers being positionable to be within a corresponding one of said vertical roller guides.
Dependencies are inferred from the claim text.