SU645943A1 - Electric coagulator for water purification - Google Patents

Description

I

The invention relates to a wastewater treatment technique and can be used in the production of iron hydroxides, aluminum, and other metals.

An electrocoagulant for water purification is known, including a bath with electrodes installed in it connected to a DC source, iron scrap separated from the negative polarity electrode by a dielectric grid and nozzles for supplying and discharging water

The disadvantages of the known electrocoagulant are that sequential connection of individual sections requires an increase in the operating voltage of the current source compared to the voltage of the sources in operation, that current is supplied through water, leading to a loss of electricity, and that gases evolved during electrolysis are not effective.

The purpose of the invention is to reduce energy consumption and improve water purification.

The goal is achieved by those. that the elec trokoagulor is equipped with a vibrator mounted on a dielectric grid made in the form of a box, that the positive polarity electrode is made in the form of strips covering iron scrap and equipped with magnets, and that the bath is made of metal and connected to the negative pole of the source direct current.

FIG. 1 shows an electrocoagulant circuit for water purification; in fig. 2, section A-A of FIG. one.

The electrocoagulatory torus consists of a frame and a bath 2. On the am. Isolator isolators 3

0 freely suspended dielectric duct 4, made of a dielectric material. To impart vibration to the box, a vibrator 5 is mounted on it, driven by an electric motor 6. Inside the box there is a lead electrode 7 made in the form of a horizontal strip with petals moving down the box in contact with iron scrap. Magnetic plates 8 are introduced into the lead petals of the electrode 7. On the lead electrode

the box and iron scrap have a positive potential, and the frame and bath are grounded. Electrocoagulatory torch is supplied with 9 inlet and outlet 10 nozzles of the solution, as well as sediment discharge nozzles 11.

E; 11Kgrok;) agu. | Yator rg bot; ct as follows. Source raspor chepe.5 nozzles 9 nocTyFiaei; into the drip and, further, into the perforated box 4. filled with iron scrap. After treatment, the solution is discharged through the discharge pipe 0. The positive pole of the current source is connected to the HepacTsuipiiMOMv electrolyte 7, into the petals of which the magnetic plates 8 secured, ensuring reliable contact of the iron scrap with the current lead. The negative pole is ngso1; and the current is connected to a grounded bath serving as a cathode. With the current source SK.noiieHHK, iron scrap G1o. / Is cast through 5 anodic dissolution. The operation of the inerclopia vibrator 5 imparts these oscillations to the scrap of the resonance, providing more intensive removal of gases and the formation of precipitation. The sediments through the holes B of the perforation box enter the apparatus, are removed through pipe 11, open the bottom of the box, are made of dielectric, are removed by ring ceramic magnets, and therefore; the failure of small particles of iron formed in the process of raszorei. and skr.

A prototype of an electrocoagulant with a volume of 15 liters was tested in laboratory conditions for three days on artificial solutions that were prepared in a mixture of niaxTic sys. When itzbpapkn with a frequency of W -22 fy. gases are free yes, ff: from the working volume, the precipitates are accumulated in the bathing bin. At the same time, iie was observed to decrease the current due to the anodic passivation of scrap.

An industrial apparatus with a capacity of a box of 3 M with a loading of scrap of 700–800 kg complete with a rectifying unit of 3000 L provides a daily output of 5,000–1,000,000 m.

Claims (3)

1. An electro-coagulant for cleaning water, including a bath with electrodes installed in it connected to a direct current source, iron scrap separated from the negative polarity electrode by a dielectric grid, and nozzles for supplying and discharging water, reducing energy consumption and improving water purification; the electrocoagulator is equipped with a vibrator mounted on a dielectric grid made in the form of a duct. 2. Electrocoagulator according to claim I, characterized in that the electrode of positive polarity is made in the form of strips covering iron scrap and fitted with magnets. 3. The electrocoagulator according to claim 1, distinguishes itself by the fact that the bath is made of metal and is connected to the negative pole of the direct current source. // ii-pv ten OmSod -. paemSopa ABOUT SLros siege (Rig J