The present invention relates to a filter device for capturing a target cell and a target cell collecting method using the same. A filter substrate by which a target cell is captured is formed of an elastic material. When blood passes, the size of a lattice hole of the filter substrate by which the target cell is captured is reduced. When the blood completely passes, the size of the lattice hole of the filter substrate by which the target cell is captured is restored, so that a destruction rate of the target cell may be reduced and a collect rate of the target cell may be increased.

Provided are an extraction structure, an extraction module, and a liquid pretreatment device relating to the liquid component testing technical field. The extraction structure comprises a cavity and a first pore passage. The extraction module comprises an extraction module body, successively bottom up, including a first cavity provided therein with a second filter layer, a first pore passage provided therein with a first filter layer, and a second cavity provided therein with an extractant layer and a porous filter disc; the first and second filter layers contain therein an expansive agent; and the diameter of the first filter layer is smaller than that of the second filter disc. The liquid pretreatment device comprises a storage tank, a transfer device and the extraction module. Between the transfer device and the extraction module is provided a filter membrane for filtering and supporting.

A device and method for filtering a liquid, wherein the device (100) comprises a container (110), a filter unit (120) and a filtering medium (130). The container (110) holds the liquid (10) containing a solid substance (10a), and the filter unit (120) is slidable in the container (110). The filtering medium (130) is non-permeable to the solid substance (10a) in the liquid (10).

Systems and methods for recovering clarified water and by-products from hydrovac waste or other slurry waste include a receiving unit for receiving the waste; a processing unit for separating coarse aggregates, fine aggregates, and raw water within the waste; and a water clarifying unit for removing ultrafine suspended solids and solid particles from the raw water to yield clarified water.

Under-sink solids separating and compositing devices, systems, and methods. An under-sink solids separating device can include a solids separation housing having a fluid opening and a solids opening positioned along a length of the housing between the top and bottom end. The under-sink solids separating device is configured to separate fluid from solids such that fluid exits the housing via the fluid opening and solids exit the housing via the solids opening. A composting device can be coupled to the solids opening of the separating device or a garbage disposal and can include one or more housings or chambers for grinding or processing the solids, one or more heaters or fans for drying the solids, and optionally a mechanism for compacting the processed solids into pucks.