Provided herein are methods, devices and systems for processing of carbonaceous compositions. The processing may include the manufacture (or synthesis) of oxidized forms of carbonaceous compositions and/or the manufacture (or synthesis) of reduced forms of oxidized carbonaceous compositions. Some embodiments provide methods, devices and systems for the manufacture (or synthesis) of graphite oxide from graphite and/or for the manufacture (or synthesis) of reduced graphite oxide from graphite oxide.

A device for reducing pressure fluctuation of a pressure filter frame and a pressure filter. The device includes a pressure filter frame that is a cylindrical housing. An inner wall of the pressure filter frame is further provided with a buffer plate. A plurality of openings are provided in the buffer plate. A gap is remained between the buffer plate and the inner wall of the pressure filter frame. A plurality of supporting posts are disposed in the gap, which fixedly connect the inner wall of the pressure filter frame with the buffer plate.

Provided herein are methods, devices and systems for processing of carbonaceous compositions. The processing may include the manufacture (or synthesis) of oxidized forms of carbonaceous compositions and/or the manufacture (or synthesis) of reduced forms of oxidized carbonaceous compositions. Some embodiments provide methods, devices and systems for the manufacture (or synthesis) of graphite oxide from graphite and/or for the manufacture (or synthesis) of reduced graphite oxide from graphite oxide.

Apparatus and methodologies are provided for pumping fluids from a body of fluids. Herein, an apparatus operably connected to at least one pump for pumping fluids from a body of fluids is provided, the apparatus having a pump hose with a first intake end for receiving the pumped fluids and a second outlet end operably connected to the pump, a pump intake assembly, fluidically connected to the intake end of the pump hose, the pump intake assembly having at least one fluid control valve, a rotatable filter cage, centrally disposed about the pump intake assembly, and at least one fluid injection pipe centrally disposed within the pump hose for supporting the at least one fluid control valve, and for injecting fluids to drive the rotation of the rotatable filter cage. Herein, methods of utilizing the fluid pumping apparatus are provided.

Apparatus and methodologies are provided for pumping fluids from a body of fluids. Herein, an apparatus operably connected to at least one pump for pumping fluids from a body of fluids is provided, the apparatus having a pump hose with a first intake end for receiving the pumped fluids and a second outlet end operably connected to the pump, a pump intake assembly, fluidically connected to the intake end of the pump hose, the pump intake assembly having at least one fluid control valve, a rotatable filter cage, centrally disposed about the pump intake assembly, and at least one fluid injection pipe centrally disposed within the pump hose for supporting the at least one fluid control valve, and for injecting fluids to drive the rotation of the rotatable filter cage. Herein, methods of utilizing the fluid pumping apparatus are provided.

Anapparatus for continuously filtering a sludge suspension, having a hollow shaft (2) that is rotatably mounted in a housing (1) and which that is fluidically connected to an inner chamber (6), which is surrounded by a filter membrane (5), of a discoid filter element (3) that radially protrudes from the hollow shaft (2), for removing a filtrate. A higher throughput of the filtrate, independently of the solids content of the sludge suspension to be filtered, is provided by the filter cake thickness and the filtration duration. The the radius (r) of the filter element (3) increases in the circumferential direction from a low pressure radius r.sub.i to a high pressure radius r.sub.h,reducing the free housing cross section.

An apparatus for continuously filtering a sludge suspension, having a hollow shaft (2) that is rotatably mounted in a housing (1) and that is fluidically connected to an inner chamber (6), which is surrounded by a filter membrane (5) of a discoid filter element (3) that radially protrudes from the hollow shaft (2), for removing a filtrate. A higher throughput of the filtrate, independently of the solids content of the sludge suspension to be filtered, is provided by the filter cake thickness and the filtration duration. The radius (r) of the filter element (3) increases in the circumferential direction from a low pressure radius r.sub.i to a high pressure radius r.sub.h, reducing the free housing cross section.

Anapparatus for continuously filtering a sludge suspension, having a hollow shaft (2) that is rotatably mounted in a housing (1) and which that is fluidically connected to an inner chamber (6), which is surrounded by a filter membrane (5), of a discoid filter element (3) that radially protrudes from the hollow shaft (2), for removing a filtrate. A higher throughput of the filtrate, independently of the solids content of the sludge suspension to be filtered, is provided by the filter cake thickness and the filtration duration. The the radius (r) of the filter element (3) increases in the circumferential direction from a low pressure radius r.sub.i to a high pressure radius r.sub.h,reducing the free housing cross section.

An apparatus for continuously filtering a sludge suspension, having a hollow shaft (2) that is rotatably mounted in a housing (1) and that is fluidically connected to an inner chamber (6), which is surrounded by a filter membrane (5) of a discoid filter element (3) that radially protrudes from the hollow shaft (2), for removing a filtrate. A higher throughput of the filtrate, independently of the solids content of the sludge suspension to be filtered, is provided by the filter cake thickness and the filtration duration. The radius (r) of the filter element (3) increases in the circumferential direction from a low pressure radius r.sub.i to a high pressure radius r.sub.h, reducing the free housing cross section.

A rotary drum filter includes a drum shell configured to rotate through a slurry, the drum shell having areas defining a plurality of drainage holes, at least one divider plate a first end and a second end, the at least one divider plate disposed on an outer surface of the drum shell and extending longitudinally and laterally along the drum shell, the first end being disposed near a drainage hole, and a filter medium disposed on one or more grids that are disposed on the outer surface of the drum shell above the at least one divider plate. The at least one divider plate is configured to direct filtrate on the outer surface of the drum shell filtered through the filter medium into the drainage hole.

A rotary drum filter includes a drum shell configured to rotate through a slurry, the drum shell having areas defining a plurality of drainage holes, at least one divider plate a first end and a second end, the at least one divider plate disposed on an outer surface of the drum shell and extending longitudinally and laterally along the drum shell, the first end being disposed near a drainage hole, and a filter medium disposed on one or more grids that are disposed on the outer surface of the drum shell above the at least one divider plate. The at least one divider plate is configured to direct filtrate on the outer surface of the drum shell filtered through the filter medium into the drainage hole.

A rotating irrigation screen apparatus includes a frame, a panel coupleable to the frame, a drum, and a belt tensioner. An upper portion of the frame may have a mounting bracket that receives a motor/gear box. The drum may include one or more screen panels that may be removably attachable. The belt tensioner may include a first bolt that receives a first bracket with a belt guide roller. The belt tensioner may be configured to interact with the motor, the belt, and the drum. The belt tensioner may increase or decrease the tension of the belt that wraps around the drum.