SU985214A1 - Installation for removing iron from soil water within formation - Google Patents

Description

(54) INSTALLATION FOR GROUNDING OF UNDERGROUND WATER IN THE PLATE

The invention relates to water supply and can be used for the purpose of deironing groundwater. A known installation for deironing groundwater in a reservoir, including a water well equipped with a water lifting device, and a number of nutrient wells, interconnected by a pipeline, to which the pipeline is connected from the water well to the water aeration device 1. The disadvantage of the known installation is the need to construct feed wells (5-8 pcs., wrapping them with pipelines with a feed pump and pumping iron-free water (in the amount of 10-40% of the selected through the feed wells into the reservoir. Moreover, in the installation, there is a need for a device for aerating the injected water.The closest to the proposed technical essence is the installation for deironing groundwater in the reservoir, including water intake and feed wells with water lifting devices, connected by means of sealed tanks, pump for pumping WATER, taken from the sealed bones, into the feed well, the air valve, the iron supply pipeline to the consumer and the shut-off valves 2. The lack of known The installation consists in a low degree of deferrization due to insufficient FaaM oxygen content in the reservoir when aerated water is pumped into it through a nutrient well. The aim of the invention is to increase the degree of deironing of groundwater. The goal is achieved by the fact that the installation for removing iron from the groundwater in the reservoir, including a well equipped with a filter and a water lifting device, a sealed container, a pipeline for pumping water into the well, air and shut-off valves, is equipped with a sealed partition installed in the filter and mounted in it airlift, overflow wall and liquid level sensors installed in an airtight container, water level sensor B of a well, while liquid level sensors installed in an airtight container STI are connected

with shut-off valves, a water level sensor in the well — with an air valve, and a sealed chamber is connected by pipelines with an airlift and a well BbiM superfilter space.

The drawing shows the scheme of the proposed installation for the deironing of groundwater in the reservoir.

The installation includes a well 1 with a casing 2 and a filter 3, an airtight partition 4 in which an air-lift 5 is mounted with an air tube 6 and a lifting column 7 which, using the flange 8, rests on the casing 2 and is connected by a pipe 9 with a sealed container 10, in which an overflow wall 11 is installed, which divides it into two sections 12 and 13, air klagtai 14, located in the upper part of the hermetic container 10, and sensors 15 and 16 ypoDfiH, located in the upper and middle parts of it, connected to the locks 1-. -1 and valves 17 and 18, at Stay in the pipeline 19 for supplying water to the consumer and the pipeline 20 connecting the sealed container 10 to the casing 2. In the column 2 above the filter 3 there is a level sensor 21 connected to the air valve 14.

Installation for the removal of iron in the reservoir works as follows.

In the initial position, the shut-off valves 17 and 18 are closed, and the air valve 14 is open. Air is supplied through the air pipe 6 to the lower part of the filter, and water is extracted with its simultaneous aeration in the water-lifting column 7 and carbon dioxide is blown out of the water. This results in an increase in the pH of the water, which accelerates the process of hydrolysis of ferrous iron. From the lifting column 7, water in the form of a water-to-air emulsion enters section 12 of the hermetic tank 10, where air is separated from it, which is removed through the air valve 14 to the atmosphere. As water accumulates in section 12, it enters section 13 through overflow wall 11, and the latter is filled. When the water level in section 13 rises to the mark at which the level sensor 15 is installed, the shut-off valve 17 opens and the air valve 14 closes. At the same time, the water supply from the well 1 to the airtight container 10 stops and due to air accumulation in the upper part of the sealed container 10 begins to squeeze water out of it through line 19 to the consumer. The water level in the section decreases when it reaches the mark at which the level 16 sensor is installed, the shut-off valve closes.

17, and the shut-off valve 18 opens, and water is squeezed out of section 12 through conduit 20 through the annulus between the lifting column 7 and casing 2 into the upper part of the filter 3 and further into the aquifer. When the water level in the annulus reaches the mark at which the level sensor 21 is installed, the air valve 14 opens and the shut-off valve 18 closes, the well pumping cycle begins again.

The equipment of the filter 3 of the well with a hermetic septum 4 with an airlift 5 mounted into it provides for the extraction of carbon dioxide from the water, an increase in the pH of the water, which accelerates the process of hydrolysis of ferrous iron and increases the degree of deironing of groundwater. The installation in the hermetic vessel 10 of the overflow wall of the level sensors 15 and 16 connected to the shut-off valves 17 and 18, and in the casing 2 connected by pipe 20 to the hermetic vessel 10, a level sensor 21 connected to the air valve 14 ensures efficient formation formation oxygen as a result of intensive mixing of degreased oxygen-saturated water with underground water, which is achieved by cyclic injection and subsequent water withdrawal through a filter 3 wells imperfect in the degree of opening of the reservoir.

The proposed installation for the removal of iron in the reservoir compared with the known increases the degree of deironing of groundwater by 35-40%.

Claims (2)

1. Patent of the USSR No. 310442, cl. C 02 B 1/20, 1970, 2. The patent of France 2385850, class, Е 03 В 3/06, 1979. about about ° C about about o 9 about with about Ltd 9 o about oh oh about o ° E