RU1813738C - Sewage water treatment unit - Google Patents

Description

divided by partitions 9. Semi-cylindrical partitions 10 are located under each pack of disks 1, and aerators 11 are located in the bottom. The last cell is made larger in volume and there is a partition inside it separating the aeration zone from the settling zone, while the settling zone is divided by an inclined partition 13 into two zones. The cleaned liquid is discharged from the unit through the tray 14. The disks 1 consist of a frame-rim 15 and hubs 16, which are fixedly mounted on the shaft 2. The filter material — fabric 17 — is pulled onto the frames. The edge of the fabric adjacent to the shaft 2 is crimped by clips 18, and the planes in the middle are fixed by flashing 19 to the hubs 16, Holes 20 connect the internal cavity of the shaft 2 to the cavity of the disk 1. The rotational movement of the shafts is communicated by electric drives 21. The hollow shafts 2 are also connected by the internal cavities with the pipe 22 - a source of salt solution catalysis metals tori of biochemical processes - 23 (Fig. 5) of wastewater 24, being treated in a tray.

Installation works as follows. The effluent from the tray 5 enters the sump 6, where solid particles are deposited. From the sump 6, the waste fluid enters the honeycomb tray 8, where it is treated with biofilm located on the surface of the rotating discs 1. The fluid flows from the cell into the cell through the edges of the baffles 9, due to the surge phenomenon arising from the rotation of the disc packs. Thanks to the supply of compressed air through the hollow shafts 2 into the two-layer discs from the filter mat

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rial, for example, of fabric 17. It is filtered and interacts with the biofilm from the base, in addition, the solution is filtered using a metal salt catalyst: iron, zinc, copper and others. With negligible catalyst consumption, biochemical processes are accelerated with all the ensuing consequences. The supply of catalysts by filtration leads to a very important effect - the absence of catalyst in the treated effluents. For effective operation, it is sufficient to periodically feed the catalyst solutions into the disks through the hollow shaft, replenishing the expended volumes.

The concentration of metal salts is from 0.001 to 0.01 g mol / L. The intensification is characterized by an acceleration of the cleaning process by 10-12% with respect to the prototype.

Cost-effectiveness is to reduce cleaning costs.

Claims (1)

The claims A wastewater treatment device comprising a container with biofilters installed in it from disks mounted on horizontal shafts, characterized in that, in order to increase the oxidizing power and intensify the cleaning process, the biofilter disks are made of filter cloth on frames, the shafts are hollow and with holes that connect them with the disc cavities, and are equipped with couplings and air sources and solutions of biochemical process catalysts connected to opposite ends of the shafts through couplings.