Abstract: An apparatus for use in an elongated shipping container for selectively carrying solid freight and bulk liquid freight comprising a frame fixedly secured to the elongated shipping container, the frame comprising at least: two side members and at least one end member connected to the side members, a collapsible liquid container removably connected to the frame, the container having a liquid impermeable outer liner and a liquid impermeable inner bladder arranged within the outer liner, a fluid conduit in fluid communication with the inner bladder and removably connected to the frame, and at least one baffle operatively arranged to removably secured to the frame and on top of the collapsible liquid container.

Abstract: A collapsible liquid storage tank for use in an elongated trailer for selectively carrying solid freight and bulk liquid freight, comprising a first side frame configured for movement between a retracted position against a first trailer side wall for carrying solid freight and a deployed position for carrying liquid freight, a second side frame configured for movement between a retracted position against a second trailer side wall for carrying solid freight and a deployed position for carrying liquid freight, a rear frame positioned between the first and second side frames when the first and second side frames are in the deployed position, a liner having side walls connected to the first and second side frames and the rear frame, a liquid impermeable bladder disposed within the liner, and at least one baffle operatively arranged to be positioned between the first and second side frames.