SU597410A1 - Apparatus for magnetic electrochemical treatment of liquid dispersion media - Google Patents

Description

native space at the same angular distance from each other.

FIG. 1 shows the apparatus proposed in section, FIG. 2 is a section along A-A of FIG. one.

The device has a cylindrical body 1, which is a cathode, a hollow cylindrical anode 2, sources of a magnetic field, an inlet 4, which is an integral part of the cathode, an outlet 5. The anode is mounted on an insulating base 6 with windows for circulation of fluid in the interelectrode space.

The source of the magnetic field 3 includes cylindrical rods 7 made of a diamagnetic material, on which permanent magnets 8 are put on, and fixed on them.

Rods with magnets, the number of which must be: at least two C: each of the sides of the anode, are fixed on a circle in a round insulating case 9;

Permanent magnets can be used as magnets (for example, brand UND24). During operation, it is recommended that the surface of the magnets be coated with a varnish resistant to corrosive attack.

It is possible to use as a source of magnetic field and solenoids fed by both alternating and direct current. The anode and cathode spaces are sealed with covers 1O, 11.

The parsing apparatus works in the following way. The original liquid medium through the inlet 4 enters the apparatus, where it is magnetically electrochemically processed, and the liquid medium reacts with both the internal and external surface of the anode 2, circulating | through the windows of the insulating base 6. The treated liquid enters

apparatus through the drain pipe 5.

In the proposed apparatus, a magneto-electrochemical treatment of an aqueous solution of ferrous sulfate is carried out. The solution of vitriol obtained after processing is used as a coagulant during the precipitation of a suspension of apatite concentrate. The evaluation of the coagulating capacity of ferrous sulfate is made by determining the sedimentation rate of a suspension of apatite concentrate in cylinders. The effect of the magnetic-electrochemical treatment of an aqueous solution of ferrous sulfate on the deposition rate of a suspension of apatite concentrate; 1. The coagulating ability of the solution of ferrous sulfate after treatment in the proposed apparatus increases by 1.5 times, while This reduces the power consumption by 24%, the processing time by 1.5 times.

A source of external magnetic field is a solenoid fed by a direct current; the power consumption spent on powering the electromagnet is further reduced by 10%.

Table 1

The proposed apparatus

o Current density Oh, 01 a / cm

Voltage 2.2 V

Processing time - 20 min

When using the proposed apparatus as an electrocoagulant, the treatment of waste water is much more efficient as compared with the known device, for example, the content of fine particles (5 µm) in the discharge of the sump

21

15

ka decreases more than 3 times, and the amount of dissolved iron decreases 2.6 times.

In tab. 2 gives the results of wastewater treatment (drainage of filtering apatite concentrate)

table 2