A rotary disk filter has a central pipe and multiple filter disks arranged around and connected to the central pipe., wherein each filter disk includes multiple filter modules arranged adjacent to one another in the circumferential direction of the central pipe, each having a base frame and two filter elements, which include a filter surface connected to a filter frame. The base frame and the two filter elements delimit a cavity fluidically connected to the central pipe. The filter frames are detachably connected to both sides of the base frame, and removable from the base frame and replaceable with new filter elements. Each filter module is fixed at the central pipe with a threaded spindle independently of the remaining filter modules, wherein the threaded spindle extends through the filter module in the radial direction with respect to the central pipe.

A rotary disk filter has a central pipe and multiple filter disks arranged around and connected to the central pipe., wherein each filter disk includes multiple filter modules arranged adjacent to one another in the circumferential direction of the central pipe, each having a base frame and two filter elements, which include a filter surface connected to a filter frame. The base frame and the two filter elements delimit a cavity fluidically connected to the central pipe. The filter frames are detachably connected to both sides of the base frame, and removable from the base frame and replaceable with new filter elements. Each filter module is fixed at the central pipe with a threaded spindle independently of the remaining filter modules, wherein the threaded spindle extends through the filter module in the radial direction with respect to the central pipe.

The present disclosure relates to a fiber discfilter, and an object of the present disclosure is to provide a fiber discfilter with a means of forming grooves on a surface of filter cloths, the fiber discfilter being configured such that foreign substances in a deep part of a filter cloth having bristles as well as foreign substances on a surface of the filter cloth may be smoothly captured during a process of filtering inflow water, and all the foreign substances captured on the surface part and in the deep part of the filter cloth may be smoothly removed during a cleaning process by a cleaning means. The present disclosure provides a fiber discfilter including a groove forming means for forming a groove in a surface of a filter cloth, the fiber discfilter including: a filter unit configured such that a plurality of filter segments each having front and rear surfaces on which filter cloths each having a surface provided with bristles are installed is installed on an outer portion of a drum so that inflow water is filtered by being introduced into the filter segments while passing through the filter cloths; a cleaning means configured to remove foreign substances captured in the filter cloths; and a groove forming means disposed to be positioned at the periphery of the filter unit and having a plurality of protrusions configured to be inserted into the surface of the filter cloth and form grooves in the surface of the filter cloth when the filter unit rotates, such that foreign substances on the surface of the filter cloth and foreign substances in a deep part of the filter cloth are uniformly captured during a process of filtering the inflow water, and the foreign substances captured in the deep part of the filter cloth are exposed during a process of cleaning the filter cloth, such that the foreign substances captured in the deep part are smoothly removed.

The present disclosure relates to a fiber discfilter, and an object of the present disclosure is to provide a fiber discfilter with a means of forming grooves on a surface of filter cloths, the fiber discfilter being configured such that foreign substances in a deep part of a filter cloth having bristles as well as foreign substances on a surface of the filter cloth may be smoothly captured during a process of filtering inflow water, and all the foreign substances captured on the surface part and in the deep part of the filter cloth may be smoothly removed during a cleaning process by a cleaning means. The present disclosure provides a fiber discfilter including a groove forming means for forming a groove in a surface of a filter cloth, the fiber discfilter including: a filter unit configured such that a plurality of filter segments each having front and rear surfaces on which filter cloths each having a surface provided with bristles are installed is installed on an outer portion of a drum so that inflow water is filtered by being introduced into the filter segments while passing through the filter cloths; a cleaning means configured to remove foreign substances captured in the filter cloths; and a groove forming means disposed to be positioned at the periphery of the filter unit and having a plurality of protrusions configured to be inserted into the surface of the filter cloth and form grooves in the surface of the filter cloth when the filter unit rotates, such that foreign substances on the surface of the filter cloth and foreign substances in a deep part of the filter cloth are uniformly captured during a process of filtering the inflow water, and the foreign substances captured in the deep part of the filter cloth are exposed during a process of cleaning the filter cloth, such that the foreign substances captured in the deep part are smoothly removed.

A rotary disk filter has a central pipe and multiple filter disks arranged around and connected to the central pipe., wherein each filter disk includes multiple filter modules arranged adjacent to one another in the circumferential direction of the central pipe, each having a base frame and two filter elements, which include a filter surface connected to a filter frame. The base frame and the two filter elements delimit a cavity fluidically connected to the central pipe. The filter frames are detachably connected to both sides of the base frame, and removable from the base frame and replaceable with new filter elements. Each filter module is fixed at the central pipe with a threaded spindle independently of the remaining filter modules, wherein the threaded spindle extends through the filter module in the radial direction with respect to the central pipe.

A rotary disk filter has a central pipe and multiple filter disks arranged around and connected to the central pipe., wherein each filter disk includes multiple filter modules arranged adjacent to one another in the circumferential direction of the central pipe, each having a base frame and two filter elements, which include a filter surface connected to a filter frame. The base frame and the two filter elements delimit a cavity fluidically connected to the central pipe. The filter frames are detachably connected to both sides of the base frame, and removable from the base frame and replaceable with new filter elements. Each filter module is fixed at the central pipe with a threaded spindle independently of the remaining filter modules, wherein the threaded spindle extends through the filter module in the radial direction with respect to the central pipe.

A method of filtering a main fluid using a rotary fluid filter. A 360 degree filtration cycle is initiated by receiving, at an initial position, a first portion of a main fluid at a front end of a first fluid flow passage extending through a filter body rotationally mounted within a housing. The filter body is rotated in a rotation direction and the first portion of the main fluid is discharged from a rear end of the first fluid flow passage, having passed through a filter received in the first fluid flow passage. The filter body is rotated further in the rotation direction and a first portion of a backwash fluid is received through the first fluid flow passage from the rear end to the front end. The rotational cycle is completed by rotating the filter body back to the initial position.

A filter bag for a rotary disk filter, which is used to filter wastewater, has a filter material with a mounting opening, via which the filter bag can be slipped over a support frame of the rotary disk filter during a mounting step in order to form a filter module. The filter material has an exit opening that is situated opposite the mounting opening and allows filtrate to exit the interior of the filter module into a central pipe of the rotary disk filter. A reinforcement is connected to the filter material at an edge delimiting the mounting opening and fixes the filter bag at the support frame. A filter module and a rotary disk filter are disclosed.

A filter bag for a rotary disk filter, which is used to filter wastewater, has a filter material with a mounting opening, via which the filter bag can be slipped over a support frame of the rotary disk filter during a mounting step in order to form a filter module. The filter material has an exit opening that is situated opposite the mounting opening and allows filtrate to exit the interior of the filter module into a central pipe of the rotary disk filter. A reinforcement is connected to the filter material at an edge delimiting the mounting opening and fixes the filter bag at the support frame. A filter module and a rotary disk filter are disclosed.

According to various aspects and embodiments, a system and method for two-stage filtration is provided. The system includes an inlet fluidly connectable with wastewater, a first stage filter assembly that is fluidly connectable with the inlet and has a rotary drum with a filter surface configured for radially inward fluid flow, a second stage filter assembly that is fluidly connectable with the first stage filter and has a plurality of filter discs configured for radially outward fluid flow, and an outlet fluidly connectable with filtrate generated by the second stage disc filter assembly.