RU2647908C2 - Method for accelerating subsoil water purification from pollutants - Google Patents

Abstract

FIELD: ecology.

SUBSTANCE: invention relates to the protection of underground and surface waters from a polluting sewage stream of livestock complexes, SDW landfills, oil products, containment ponds, etc. Pollutants, penetrating into the subsoil water, move in the direction of their movement and can spread to large areas. A geomembrane 2 with filtering windows is placed in the main trench 1 as an impervious material. A water intake tank and a pump 7 for pumping floating contaminated dissolved matters from the upper layer of water 8 are placed in an impervious curtain. Valves 9 are installed on the filtering windows and pumps 7 create a forced movement of subsoil water.

EFFECT: speed of subsoil water movement rises and thus the efficiency of subsoil water purification from pollutants increases.

2 cl, 2 dwg

Description

The invention relates to the field of protection of groundwater and surface water from the polluting stream of effluents of livestock complexes, solid waste landfills, oil products, storage ponds, etc.

Contaminants, penetrating into groundwater, move in the direction of their movement and can spread to large areas.

Currently, there is a method of creating anti-filter curtains with filter windows (RF Patent No. 2301862, IPC EV 3/16, published June 27, 2007), including the development and filling of a trench with anti-filter material with windows filled with sorbent-filtering or deactivating-filtering material.

The disadvantage of this method is:

- the complexity of the removable cartridge;

- a small volume of sorbent-filtering material and, accordingly, a small transmitted volume of the filtrate through the windows;

- high consumption of hardening impermeable material, backfilled into the trench;

- the possibility of violating the integrity of the "walls in the ground" due to subsidence of the ground.

The objective of the proposed method is to increase the speed of groundwater and thereby increase the efficiency of purification from pollutants due to forced pumping using pumps.

The essence of the proposed method is illustrated by drawings of FIG. 1, FIG. 2.

The numbers in the drawings indicate:

1. main trench

2. geomembrane

3. filter windows

4. sorption-filtering material

5. filter material

6. water intake capacity

7. pumps

8. top layer of water

9. valves

A method of accelerating the purification of groundwater from pollutants is as follows.

A geomembrane 2 with filtering windows 3 is placed in the main trench 1 as an antifiltration material. A water receiving tank 6 and a pump 7 are placed in the antifiltration curtain for pumping 8 floating contaminated dissolved substances from the upper water layer.

On the filter windows, valves 9 are installed and pumps 7 create a forced movement of groundwater.

Method advantage

1. With the help of pumps, forced groundwater movement is created, thereby increasing the speed of movement and the efficiency of cleaning pollutants through anti-filter material.

2. Ability to control the groundwater level.

3. Prevention of stagnation and sedimentation of pollutants to the bottom.

4. The high water-lowering and drainage ability, as well as the automatic controllability of this system, makes it possible to operatively manage soil-reclamation processes in the soil-groundwater system.

Claims (2)

1. A method of accelerating the purification of groundwater from pollutants, including filling the main trench with antifiltration material in the form of a geomembrane with filter windows, characterized in that valves are installed on the windows through which the groundwater is forced to move. 2. The method according to claim 1, characterized in that the groundwater intake and level are regulated by pumps, followed by discharge.

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