Bladder for containment vessel

A containment vessel bladder for retaining material to be stored within a containment vessel, the bladder comprising:

• a flexible enclosure having a sealed interior defined generally by a floor portion connected to an enclosed top by one or more wall portions, said enclosure further including an opening for the delivery of material into and the evacuation of material from said sealed interior, and a drain facilitating element positioned on said floor portion within said sealed interior of said flexible enclosure, said drain facilitating element expandable through use of a source of pressurized fluid from a deflated position to an expanded position, when in said deflated position said drain facilitating element foldable with said enclosure to facilitate storage and transport of said containment vessel bladder, when in said expanded position said drain facilitating element having one or more sloped surfaces aiding in the direction of material stored within said sealed interior toward a pre-determined location within said sealed interior to help facilitate the removal of material from said containment vessel bladder;
• the containment vessel bladder further including a ceiling shape retaining element in the form of an upper bladder positioned adjacent to said enclosed top and within the interior of said containment vessel, said upper bladder having an inflated configuration and a deflated configuration and inflated through use of a of a source pressurized fluid, wherein the same source of pressurized fluid is used to expand said drain facilitating element and to inflate said upper bladder.

A containment vessel bladder for retaining material to be stored within a containment vessel, the bladder comprising:

• a flexible enclosure having a sealed interior defined generally by a floor portion connected to an enclosed top by one or more wall portions, said enclosure further including an opening for the delivery of material into and the evacuation of material from said sealed interior, and a ceiling shape retaining element positioned adjacent to said enclosed top and within the interior of said containment vessel bladder, said ceiling shape retaining element comprising an upper bladder having an inflated configuration and a deflated configuration, said upper bladder expandable from a deflated configuration to said expanded configuration through use of a source of pressurized fluid, when in said inflated configuration said upper bladder bearing against said enclosed top to aid in permitting said enclosed top to shed precipitation or other debris that may come into contact therewith, the containment vessel bladder including a drain facilitating element positioned on said floor portion within said sealed interior of said flexible enclosure, said drain facilitating element expandable from a deflated position to an expanded position through use of a source of pressurized fluid, when in said deflated position said drain facilitating element foldable with said enclosure to facilitate storage and transport of said containment vessel bladder, when in said expanded position said drain facilitating element having one or more sloped surfaces aiding in the direction of material stored within said sealed interior toward a pre-determined location within said sealed interior to help facilitate the removal of material from said containment vessel bladder,
• wherein the same source of pressurized fluid is used to expand said drain facilitating element and to inflate said upper bladder.