Water or wastewater filtration systems and processes have a filter tank having a floor and sidewall defining a filtration zone, an influent conduit, and an effluent conduit. One or more filtration members in the tank having filter media, and one or more cleaning members adjacent at least some portions of the filter media. Generating an effluent stream by generating a pressure differential across submerged portions of the filtration media, causing water in the influent to flow from outside to inside the submerged portions of the filter media. A prime mover rotates the filtration members. A blower and chamber for creating a reduced pressure condition in each of the cleaning members when they are non-submerged, the chamber receiving wet solids removed from non-submerged, wet solids-laden portions of the filter media by the non-submerged cleaning members subsequent to submerged, fouled portions of the filter media being rotated out of the filtration zone.

The present discloses a waste screening apparatus comprising: a main body; a waste screener vertically and tiltedly disposed in the main body to screen wastes in the input water and to allow waste-removed water to be discharged through water discharge holes defined in both side faces of the main body respectively, wherein the waste screener vertically circulates in a conveyor manner, wherein the input water is input to a front, rear and bottom of the waste screener; wherein the main body includes: both side walls having the water discharge holes defined therein respectively to allow waste-removed water to be discharged out from the waste screener therethrough; and a rear blocking wall disposed at a rear of the waste screener to be spaced from the waste screener, wherein the input water passes through front and rear portions of the waste screener with wastes being removed from the input water, and, then, is discharged out through the water discharge holes defined in the both side walls respectively.

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.

A drive shaft with direct-mounted sprockets is arranged in a chain drive unit. The drive shaft includes a shaft body, a pair of metal plate sprockets, and first padding portions and second padding portions formed of weld beads. The first padding portions are formed such that their positions are changed to alternate with each other in a circumferential direction of the shaft body. The second padding portions are formed such that their positions are changed to alternate with each other in the circumferential direction of the shaft body. A torque input to the shaft body is transmitted to the metal plate sprockets via the padding portions.

Provided is a filter, including a filter closure head (1), a tank body (2), two cross support frames (3), a mandrel (6), and filter elements (5). The filter closure head (1) is provided with a liquid inlet and is fixedly mounted with the tank body (2) through flanges. A liquid outlet is formed in the tank body (2). Two groups of support rings (4) are respectively fixedly mounted at the upper end and the lower end in the tank body (2). Grooves used for matching and lapping the two cross support frames (3) are formed in both groups of the support rings (4). Sliding bearings (9) used for rotatably mounting the upper end and the lower end of the mandrel (6) are arranged at the central positions of the two cross support frames (3). Filter element sleeves (501) of the filter elements (5) are fixedly mounted on the mandrel (6).

The invention relates to a rotary pressure filter module (100) which comprises a rotary pressure filter (200) having a plurality of supply lines (302, 318, 330) for supplying a suspension, washing medium, drying medium, and optionally other operating media to be filtered and having a plurality of discharge lines (314, 326, 348) for discharging mother filtrate, washing filtrate, and filter cakes, different sensor devices (306/308/310, 322/324, 334/336, 316, 328, 349) being assigned to the supply lines and the discharge lines, and adjusting devices also being assigned to the supply lines, the rotary pressure filter module (100) additionally comprising a control device (400) which is connected to the sensor devices and the adjusting devices. According to the invention, the decentralised control device (400) assigned to the rotary pressure filter (200) is arranged on the rotary pressure filter (200) or in its immediate vicinity and has a signal input via which it can be brought into data exchange connection with a central control device, which does not belong to the rotary pressure filter module (100), of a higher-level production system.

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.

This disclosure provides apparatuses and methods for a rotatable, cylindrical basket within a housing, wherein the rotatable, cylindrical basket has a longitudinal bore therethrough and an external surface, and, optionally, other surface areas, comprising filtering media. Further, the housing may include an inlet and an outlet, wherein the inlet and the outlet, optionally openable and closeable, and located at least proximate to opposing ends of the rotatable, cylindrical basket. Further still, the apparatus may include a heating unit removably coupled to the rotatable, cylindrical basket, wherein the heating unit is configured to blow hot air onto at least a portion of the filtering media.

Solid/liquid separation processes using a large pore filter. One aspect of the disclosure is a process comprising filtering a solid/liquid mixture of a collection of solid aromatic carboxylic acid particles in a solvent in a first zone of a rotary pressure filter apparatus to form a filter cake on a filter surface, and removing the filter cake from the filter surface.

A mechanism for detecting obstacles and mechanically reversing (a direction of) a pool cleaner includes a drive part in non-rotatable connection with a cleaner housing, an arresting assembly connected to the cleaner housing, and a rotary direction-changing assembly rotatably connected to the cleaner housing or the drive part. The arresting assembly cooperates with the rotary direction-changing assembly. The mechanism for detecting obstacles and mechanically reversing (a direction of) a pool cleaner is compact in structure, low in manufacturing cost, and can perform obstacle detection and change a direction of the pool cleaner. With the structure of the rotary direction-changing assembly capable of rotating relative to the cleaner housing, the cleaner, when meeting an obstacle, is allowed to change the traveling direction, thereby resulting in a high working efficiency.