This solid-liquid separator (100a) includes a screw type dehydration unit (2) including a screw (22) and that performs primary dehydration on an object to be processed, and a rotary-body type dehydration unit (3) including a plurality of rotary bodies (30), disposed subsequent to the screw type dehydration unit, and that performs secondary dehydration on the object to be processed on which the primary dehydration has been performed by the screw type dehydration unit. The screw rotates at a higher rotational speed than those of the rotary bodies.

A system and apparatus configured to facilitate on-site treatment of wastewater from a residence is described. The system is configured to immediately treat wastewater as it is generated, on an as-needed basis, and works to remove undissolved down solids and reduce dissolved materials concentrations to a uniform level prior to transmission of the wastewater to municipal waste water treatment facilities and/or any non-drinking application. The system employs a two-stage treatment apparatus where the first stage is configured to pre-grind and decompose undissolved solids of the wastewater and the second to reduce dissolved materials concentrations. The first stage uses turbidity meters, and the second stage uses pH, BOD and conductivity to ensure a uniform output from each stage. A fast decomposer has rotating filters which operational modes ensure that the filters do not become clogged with solids in a cake form simultaneously.

A system and apparatus configured to facilitate on-site treatment of wastewater from a residence is described. The system is configured to immediately treat wastewater as it is generated, on an as-needed basis, and works to remove undissolved down solids and reduce dissolved materials concentrations to a uniform level prior to transmission of the wastewater to municipal waste water treatment facilities and/or any non-drinking application. The system employs a two-stage treatment apparatus where the first stage is configured to pre-grind and decompose undissolved solids of the wastewater and the second to reduce dissolved materials concentrations. The first stage uses turbidity meters, and the second stage uses pH, BOD and conductivity to ensure a uniform output from each stage. A fast decomposer has rotating filters which operational modes ensure that the filters do not become clogged with solids in a cake form simultaneously.

A screen assembly for use in vibratory separators, e.g., shale shakers. The screen assembly has a support with first and second sides, and support surfaces bounded by and connected to at least a portion of the first and second sides. Overlying and adhered to at least portions of the support surfaces is a screen which has alternating planar and undulating portions of screening material.

The present invention is to provide a separation apparatus for separating a liquid from a treated object containing the liquid in the course of a process of sending the treated object with each rotating plate being rotated, wherein efficient separation of the liquid from the treated object can be performed, while the rotating plates are efficiently prevented from getting damaged.

The separation apparatus comprises a plurality of rotating shafts 9 formed in a lateral direction while being arranged in parallel in a longitudinal direction, a driving device 7 for rotationally driving each rotating shaft 9, and a plurality of rotating plates 12 mounted on each rotating shaft 9 in parallel in a lateral direction while being in such an attitude that their plate thickness direction is oriented in a direction along the lateral direction, wherein spaces S1, S2 through which the liquid contained in the treated object is allowed to drop are formed between the mutually adjacent rotating plates 12 in the lateral direction or those in the longitudinal direction, the rotating plates 12 are configured so as to periodically repeat a state of being projected upward and a state of being not projected upward, while being elastically deformable in a direction along said each rotating shaft 9.

The present invention is to provide a separation apparatus for separating a liquid from a treated object containing the liquid in the course of a process of sending the treated object with each rotating plate being rotated, wherein efficient separation of the liquid from the treated object can be performed, while the rotating plates are efficiently prevented from getting damaged.

The separation apparatus comprises a plurality of rotating shafts 9 formed in a lateral direction while being arranged in parallel in a longitudinal direction, a driving device 7 for rotationally driving each rotating shaft 9, and a plurality of rotating plates 12 mounted on each rotating shaft 9 in parallel in a lateral direction while being in such an attitude that their plate thickness direction is oriented in a direction along the lateral direction, wherein spaces S1, S2 through which the liquid contained in the treated object is allowed to drop are formed between the mutually adjacent rotating plates 12 in the lateral direction or those in the longitudinal direction, the rotating plates 12 are configured so as to periodically repeat a state of being projected upward and a state of being not projected upward, while being elastically deformable in a direction along said each rotating shaft 9.

A dry docking station that may include an interface that comprises an interface portion for contacting a self-propelled debris collecting robot when the self-propelled debris collecting robot is positioned at a container replacement position; a container manipulator that is arranged to assist, while the self-propelled solid debris collecting robot is contacted by the interface, in positioning a new debris collecting container into a debris collection position within the self-propelled debris collecting robot and to extract from the self-propelled debris collecting robot a used debris collecting container; a used container storage module for storing the used debris collecting container after the used debris collecting contains is extracted from the self-propelled debris collecting robot; and a new container storage module for storing the new debris collecting container before the new debris collecting container is positioned in the self-propelled debris collecting robot.

A dry docking station that may include an interface that comprises an interface portion for contacting a self-propelled debris collecting robot when the self-propelled debris collecting robot is positioned at a container replacement position; a container manipulator that is arranged to assist, while the self-propelled solid debris collecting robot is contacted by the interface, in positioning a new debris collecting container into a debris collection position within the self-propelled debris collecting robot and to extract from the self-propelled debris collecting robot a used debris collecting container; a used container storage module for storing the used debris collecting container after the used debris collecting contains is extracted from the self-propelled debris collecting robot; and a new container storage module for storing the new debris collecting container before the new debris collecting container is positioned in the self-propelled debris collecting robot.

A filtering device includes a filter tank, a first drum filter both ends of which are supported, and a cantilever second drum filter. A first end portion of the first drum filter is supported on a first sidewall of the filter tank. A second end portion of the first drum filter is supported on a second sidewall. An end portion of the second drum filter on the supported side is supported on the first sidewall. Between an end portion of the second drum filter on the non-supported side and the second sidewall, a communicating part is formed. A first jetting section jets a fluid against an outer circumferential surface of the first drum filter. A second jetting section is arranged in the vicinity of the second drum filter and jets the fluid against the second drum filter.

A two-vector centrifuge rotates on a central axis, while each centrifuge drum also rotates on the drum's own axis. The inside of each drum has flighting or threads to direct and force material to the bottom of the drum as the two-vector centrifuge rotates. Perforations in the top part of the drum allow liquids to be expelled from the drum, while dried, solid material is ejected though a gap in the bottom of the drum. A pair of troughs keep the ejected liquid fraction separate from the ejected solid fraction, and each fraction is removed from the centrifuge while the centrifuge is operating, allowing the centrifuge to run for extended periods without needing to be cleaned or have accumulated material removed.