An underwater energy storage system includes a tank for storing a compressed gas that is adapted to be stored underwater. The tank includes at least one water opening through which water from surrounding environment can flow into and out of the tank, and at least one gas opening through which the compressed gas is received. The underwater energy storage system further includes at least one duct communicating between the at least one opening for gas flow and a source of compressed gas and a compartment constructed over a roof of the tank, wherein said compartment is adapted for receiving weights at a sinking site of the tank.

Systems and methods relating to the safety of railway cars carrying flammable materials. A rail tank car having an inner tank and an outer protective wall surrounding the inner tank is provided. The outer surface of the inner tank and the inner surface of the outer protective wall are separated by a gap. A low emissivity coating is applied to one or both of the outer surface of the inner tank and the inner surface of the outer protective wall. Existing rail tank cars with a similar construction can be retrofitted by spraying the low emissivity coating inside the gap to thereby coat at least one of the inner surface and the outer surface. Preferably, the low emissivity coating has an emissivity coefficient of, at most, 0.8.

A closable and sealable, preferably thermoplastic plastic container (1) for storing, transporting and dispensing a powdery or granular polypeptide, said container comprising a circumferential wall (2) having an upper end and a lower end and at the lower end joining a closed bottom wall (7) and being at the upper end provided with a closable outlet member (16) having an outlet opening, the container having an inner surface and an outer surface, the inner surface being an antistatic surface adapted to be in contact with the polypeptide.

A wall having a fluid impervious coating thereon and further having a monitoring arrangement which provides for monitoring the condition of the wall. The monitoring arrangement mounted on a surface of the wall.

The present disclosure provides for an above-ground mobile storage tank that can be used in a variety of different commercial applications. In one embodiment, the storage tank may comprise a tank shell, wherein the tank shell further comprises at least one floor wall, at least one top wall, and at least four side walls. The side walls may each be affixed to the floor wall and the top wall to from an interior tank space. Each of the wall panels may comprise a copolymer polypropylene material. The storage tank may also comprise a plurality of steel reinforcements, wherein each reinforcement is configured to encapsulate the tank shell. Each reinforcement may be affixed to a trailer, which is configured to transport the tank shell. The storage tank may also comprise a plurality of slip plates located on the trailer to enable the tank shell to float above the trailer.

A modular container storage system includes multiple container units configured to be assembled to one another in an indefinite expanded state for enabling sheltered access to the stored items through a corridor enclosure, and in a compacted state for convenient transport and/or reduced storage space.

A modular container storage system includes multiple container units configured to be assembled to one another in an indefinite expanded state for enabling sheltered access to the stored items through a corridor enclosure, and in a compacted state for convenient transport and/or reduced storage space.

An epoxy resin for use in chemically resistant two component epoxy linings and composites is produced through the reaction of resorcinol, cresol novolak and polyhydoxystyrene with epichlorohydrin and subsequent reaction with caustic. The ratio of the three components is optimized to give the lining excellent chemical resistance, good crystallization resistance, acceptable viscosity for use in epoxy linings while minimizing the cost of the epoxy resin.

Provided herein are tank-sensor systems and related manufacturing methods. In at least one aspect, the tank-sensor system includes a tank liner. The tank liner includes a body having a top end, a bottom end, an outer surface, and an inner surface. The tank liner also includes a recessed opening having a recessed portion and an opening. The recessed portion is positioned on the outer surface and the opening is positioned within the recessed portion and defines a through-hole between the outer surface and the inner surface. The tank-sensor system also includes a sensor inserted into the opening and engaging with the recessed portion, and a coating disposed around the outer surface of the tank liner and sealing the recessed opening.