SU1479003A3 - Apparatus for treating waste water - Google Patents

Abstract

The apparatus comprises a biorotor (2) preferably formed by a sector modules (20), within which biorotor a granular medium (11) is provided to form a substrate for the biomass, said medium simultaneously serving as a hydraulic bearing during the rotation of the rotor partly immersed in water so that it holds up the entire biorotor structure as well as the active biomass.

Description

Fig 2

114

The invention relates to wastewater treatment by the method of biological oxidation.

The purpose of the invention is to increase the cleaning efficiency.

FIG. I shows the biotorotor, a general view; in fig. 2 — device, cross section; in fig. 3 - the sector of the device module.

The device contains a tank 1 with treated water and a biorotor 2, which floats in the tank, supported by a loose medium containing

with in the biorotor. Purified water post-15 formed by the walls 14 and 17 and in each case in particular. For example, hpH particle size of 8 mm. The area of active biomass is obtained up to 500 and even more, three times more than the known constructions.

The device has an outer tray 12 where extra water flows. In the biorotor there are angular supports 13, walls 14, toothed supports 15, agitator blades 16, intermediate walls 17, supports 18 at the bottom, a scraper 19 located above the tray 12. The bihorotor consists of sector modules 20,

It flows from the feed pipe 3 and through the nozzles 4 and onto the toothed ring 5 of the biorotor, creating a torque. Water simultaneously enters into the inside of the bio-rotor through the lattice outer sheath 6. Water leaves the bio-rotor through the end surfaces 7, is loaded and the central channel 8.

Constructions of the central channel 8

and the functions of the discharge channels 9, it is possible to separate, for example,

visible in FIG. 2. The spiral-shaped structure is formed by fastening the aforementioned grooves 9 at an inclination relative to the longitudinal

the powder contained in the wastewater of the paper mills. In practice, this can be done through an elastic, brush-like

the axis of the biorotor shaft, as a result, the water, 30 of the scraper 19, which is located above the flowing down in the center, moves to the output end of the biorotor.

The inner surface 10 of the central channel of the rotor can be made of a similar grid material of the material as well as the outer shell 6.

The biorotor is not completely filled with loading — granular material 11, the grains of which move during rotation and rub each other 40. When this happens, self-cleaning and biomass can not grow excessively in thickness, otherwise the system would be clogged. Since the granulated material 11 is lighter than water, a lift force is created that keeps the entire structure of the biorotor afloat. The loading acts as a hydraulic bearing of the biorotor and the entire system and provides it with support for JQ over the entire length. Consequently, the biorotor can be very light in design and the drums can be of large diameter and of any length.

tray 12, which drains too much water.

The device works as follows.

The initial water enters the rotor through the supply pipes 3 and the nozzles 4 in trickles through the shell 6 of the gear ring 5 to the loading and then flows down in slow streams. For -, / loads granular material can be made, for example, from cork or plastic. Due to the fact that the water supply is from above the surface of the water in the tank 1, a torque is generated to the rotor. When the load is lowered into the water being treated, it is completely wetted with water, and when it rises on the opposite side, the residual water drains out of the space between the charge particles, the wetted biomass remains on the surface of the particles, which, when changing the particle size or grain, go into contact with air

The granulated material I1 influences the amount of active biomass per unit volume, and the process can be effectively adapted to the required conditions throughout their entire surface. With each rotation of the rotor, the water that needs to be processed is completely replaced.

15 and 18.

The grill sheath 6 may be made of a perforated sheet, wire material or similar materials. The grate shell acts as a pre-screener and separator, for example, of fiber particles in front of a bio-rotor, improving biological oxidation. Thus, the powder contained in the wastewater of paper mills. In practice, this can be done by means of an elastic, brush-like,

scraper 19 which is located above

tray 12, which drains too much water.

The device works as follows.

The original water enters the surface of the rotor through the supply pipes 3 and the nozzles 4 in trickles through the casing 6 of the gear ring 5 to the load and then flows down in trickles slowly down. Granulated material for -, / weights can be made, for example, of cork or plastic. Due to the fact that the water is supplied from above relative to the surface of the water in the tank 1, a torque is generated to the rotor. When the load is lowered into the treated water, it is completely wetted with water, and when it rises on the opposite side, the residual water flows out from the space between the charge particles, wetted biomass remains on the surface of the particles that come in contact with air.

across their surface. With each rotation of the rotor, the water that needs to be processed is completely replaced.

The invention increases the effectiveness of wastewater treatment. The design of the biofilter is simple and economical.

The proposed biorotor can also be used to clean flue gases or other gases or to remove odors in biological or chemical systems.

Claims (1)

Invention Formula A device for wastewater treatment, containing a reservoir with treated water, partially immersed in it a biorotor with sector modules filled with a load, a central channel, a peripheral gear ring with water supply nozzles for rotating the biorotor, characterized in that, in order to increase cleaning efficiency, the peripheral gear wheel is made of perforated material, the central channel is equipped with drain chutes attached to its inner surface is along a helical line, and the load is made of granular material with a density that is less than the density of water, for example, cork or plastic. 1 15 13 15