RU1835307C - Device for water purification - Google Patents

Abstract

The invention relates to the field of purification of drinking water, in particular to the design of means for producing drinking water, and will increase the duration of the device by enhancing the bactericidal effect. The water purification device consists of a preliminary filter, a hand pump and a membrane apparatus made in the form of two flanges compressing a packet of filtering membranes, between which there is a bactericidal insert made of copper and titanium elements in contact with each other. A feature of the device is that the copper and titanium elements are made in the form of alternating grids. A water purification device can be used in the national economy as an individual means of supplying water to tourists, hunters, fishermen, and the like. 2 ill.

Description

The invention relates to equipment for purifying drinking water and can be used as an individual means of obtaining drinking water from surface sources for tourists, geologists, fishers, hunters, etc.

The purpose of the invention is to increase the duration of the device by enhancing the bactericidal effect.

In FIG. 1 - a device for purifying water assembly; figure 2 is a fragment of a packet of filtering membranes.

The water purification device (Fig. 1) consists of a hand pump 1, a disk-shaped membrane apparatus 2, a hose 3 and a pre-filter 4. A hose 3 is connected at one end to the inlet pipe of the membrane device 2, and the other to a pre-filter 4, The outlet pipe of the membrane apparatus 2 is connected to the suction pipe 5 of the hand pump 1.

The hand pump 1 is a piston type, has a piston 6, a suction 5 and a discharge 7 nozzles with non-return valves 8 located inside them.

The membrane apparatus 2 is made in the form of two flanges, hermetically connected to each other, between which is a packet of filtering membranes.

The package of filtering membranes (Fig. 2) consists of two layers of filter paper 9, between which is a layer of carbon cardboard 10 with a size of the order of 5 microns. Between the layer of coal cardboard 10 and the layer of filter paper 9 located on the side of the outlet fitting of the membrane apparatus 2, a bactericidal insert is placed.

The bactericidal insert is an alternating copper (11) and titanium (12) mesh in contact with each other.

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A water purification device operates as follows. The hose 3 with the pre-filter 4 is lowered into the surface water body (river, lake, swamp, etc.) and starts to work with the manual pump 1. Thanks to the vacuum created by the pump 1, the initial water is sucked into the pre-filter 4 and moves through the hose 3 to the membrane unit 2. Passing through a packet of filtering membranes, the water is clarified from suspended and colloidal impurities and cleaned of odors.

During the suction stroke, the piston 6 of the pump 1, due to the vacuum created, the membrane package in the membrane apparatus 2 bends together with the nets 11 and 12 located therein towards the outlet pipe. During the injection stroke, the piston 6 of the pump 1 due to some inertia of the non-return valve 8 located in the suction nozzle 5 of the pump 1, a partial decrease in the vacuum occurs in the membrane apparatus 2.

Since the suction and discharge passages of the pump 1 constantly follow each other, alternating loads are regularly affected by the filter membrane package. In this case, grids of copper 11 and titanium 12 are in contact with each other and the process of electrochemical corrosion with the dissolution of a chemically more active metal - copper and transitions of Cu + ions into water.

When contacted under the influence of alternating loads, the titanium .12 harder is torn. The grid peels off the surface of the copper 11 grid, forming a soft layer of copper hydroxides on its surface that impedes the corrosion process. They are collected in the form of sludge on the surface of filter paper 9, forming an active gel-like layer, the so-called dynamic membrane, which ensures high-quality cleaning and disinfection of water, and when the water purifier is idle, it prevents the filter bag from fouling.

Thus, Cu2 + ions having a bactericidal property fall into the treated water in the membrane apparatus 2. Disinfection of the treated water. Then, the water through the manual pump 1 reaches the consumer, for example, in some receiving tank. As water with copper ions passes through pump 1, its cavities are also sterilized.

In addition, the grids 11 and 12 are themselves filter media of mechanical impurities. Small gaps accumulate in the gaps between the wire of the nets 11 and 12. With the elastic deformations of the grids 11 and 12 described above, they are compressed and larger mechanical particles are formed from them, which, due to their size, do not penetrate into the membranes, which are located downstream of the treated water, but accumulate in the free spaces of the grids 11 and 12. increasing accordingly the soil capacity of the membrane apparatus 2.

The process of corrosion of copper occurs not only during the operation of the device to a direct value of 5, but also during its inactivity, because Moisture is retained in membrane apparatus 2 for a long time due to the capillary effect of the materials in the filter membrane pack.

0 Thus, on the surface of the filter paper layer 9 adjacent to the mesh 12, an active gel-like layer of copper oxides is formed, which substantially prevents the layers of the bag

5 filtering membranes from biofouling.

Compared with the prototype of the claimed device for water purification, we have the following advantage: an increase in the duration of work due to the strengthening

0 bactericidal action. This advantage is ensured by using elasticity of copper and titanium grids under alternating loads, they constantly move relative to each other, guaranteeing scraping of the oxide film from the material. And intense corrosion processes with the formation of a bactericidal substance, the total yield of which increases repeatedly.

At the same time, due to the use of nets as storage filters, the load capacity of the filter membrane package is increased.

5 All this increases the duration of the device.

Claims (1)

The introduction of the claimed water purification device will have a great social effect when used as an individual means of obtaining water from surface sources for tourists, geologists, fishermen, hunters, and the like. SUMMARY OF THE INVENTION A water purification device comprising a pre-filter, a hand pump and a membrane apparatus made in the form of two flanges compressing a packet of filtering membranes, between which there is a bactericidal insert made of copper and titanium elements in contact with each other, characterized in that in order to increase the duration of the device due to the amplification bactericidal action, copper and titanium elements are made in the form of alternating grids.  Figure 1 Figure 2.