A concentration device for concentrating a liquid containing a target object, the concentration device including: a container configured to store the liquid containing the target object; a filter in the container; and a position control portion configured to change a position of the filter in the container.

A movable seal for interfacing between a first surface and a second surface includes a floating portion attached to a non-floating portion by a flexible coupling portion, wherein the non-floating portion is coupled to the first surface by nesting in a groove on the first surface, and wherein the non-floating portion forms a seal between the first and second surfaces when the first surface moves relative to the second surface in a first direction, and wherein the non-floating portion does not form a seal between the first and second surfaces when the first surface moves relative to the second surface in a second opposite direction.

A movable seal for interfacing between a first surface and a second surface includes a floating portion attached to a non-floating portion by a flexible coupling portion, wherein the non-floating portion is coupled to the first surface by nesting in a groove on the first surface, and wherein the non-floating portion forms a seal between the first and second surfaces when the first surface moves relative to the second surface in a first direction, and wherein the non-floating portion does not form a seal between the first and second surfaces when the first surface moves relative to the second surface in a second opposite direction.

Modular fluid processing apparatuses, modular components and related methods are provided. A fluid processing apparatus for use in fluid processing systems can include a housing comprising first body half and a second body halves that are secured together. The first body half has one or more half bores that extend along a length of the first body half and the second body half has one or more half bores that extend along a length of the second body half with the one or more half bores in the first body half aligning with the one or more half bores in the second body half forming one or more full sleeve-receiving bores. The fluid processing apparatus can include one or more sleeves that are securable between the first and second body halves within the one or more sleeve-receiving bores to form piston pathways within the housing for receiving pistons.

Modular fluid processing apparatuses, modular components and related methods are provided. A fluid processing apparatus for use in fluid processing systems can include a housing comprising first body half and a second body halves that are secured together. The first body half has one or more half bores that extend along a length of the first body half and the second body half has one or more half bores that extend along a length of the second body half with the one or more half bores in the first body half aligning with the one or more half bores in the second body half forming one or more full sleeve-receiving bores. The fluid processing apparatus can include one or more sleeves that are securable between the first and second body halves within the one or more sleeve-receiving bores to form piston pathways within the housing for receiving pistons.

A filtration container assembly generally includes an outer container having a first end and a second end and defining an inner cavity, and a plunging assembly configured to be received within the outer container inner cavity, wherein the plunging assembly includes an inner sleeve having a first end and a second end and an outer wall defining an inner bore, wherein the outer wall is continuous from the first end to the second end, and a filtration assembly coupled to the inner sleeve at the second end.

A filtration container assembly generally includes an outer container having a first end and a second end and defining an inner cavity, and a plunging assembly configured to be received within the outer container inner cavity, wherein the plunging assembly includes an inner sleeve having a first end and a second end and an outer wall defining an inner bore, wherein the outer wall is continuous from the first end to the second end, and a filtration assembly coupled to the inner sleeve at the second end.

A dam assembly is provided which is used to increase retention time on the shaker and therefore achieve maximum dryness of solids, such as cuttings, sand, dirt, and other particles. As solids are conveyed to the end of the shaker, the solids will begin to pile up behind the dam assembly. Once enough solids of sufficient weight pile up behind the dam assembly, the dam assembly will fold over and release the solids.

A system for separating solids from a fluid includes a containment vessel having a V-shaped tank in fluid communication with an agitated overflow tank. Baffles within the V-shaped tank provide a series of zones where the fluid is deposited for processing. A shaftless auger at the bottom of the V-shaped tank transfers solids to an area where they are pumped to a first hydrocyclone assembly associated with a first shaker. Overflow from the hydrocyclone assembly and underflow from the first shaker is further processed by a second hydrocyclone assembly associated with a second shaker. Overflow from the second hydrocyclone assembly and underflow from the second shaker are deposited into overflow tank which contains the cleaned fluid.

A system for separating solids from a fluid includes a containment vessel having a V-shaped tank in fluid communication with an agitated overflow tank. Baffles within the V-shaped tank provide a series of zones where the fluid is deposited for processing. A shaftless auger at the bottom of the V-shaped tank transfers solids to an area where they are pumped to a first hydrocyclone assembly associated with a first shaker. Overflow from the hydrocyclone assembly and underflow from the first shaker is further processed by a second hydrocyclone assembly associated with a second shaker. Overflow from the second hydrocyclone assembly and underflow from the second shaker are deposited into overflow tank which contains the cleaned fluid.