CN1104382C

CN1104382C - Device for creation of oxidation and pptn. zone or reduction zone in aquifer

Info

Publication number: CN1104382C
Application number: CN97117480A
Authority: CN
Inventors: 鲁道夫·马丁内尔
Original assignee: VYRMETODER AB
Current assignee: Arlington Trading Corp SA
Priority date: 1997-08-20
Filing date: 1997-08-20
Publication date: 2003-04-02
Anticipated expiration: 2017-08-20
Also published as: CN1208720A

Abstract

The present invention relates to a device used for forming an oxidation and precipitation zone or forming a reduction zone in a water bearing layer, which is distributed around one pump well or more than one pump well of purified water and among a plurality of perfusion wells, and each perfusion well has a pervious outer tube. In order to prevent the device from being blocked, the upper end of the outer tube is provided with a circulating container; a first guide tube 1 of the container extends downwards in the outer tube, and finally arrives at the height of the upper part of the water bearing layer; a device of a pressure entrance is arranged, and thereby, a top water ejector is formed. On the upper end of a second guide tube, an outer seal sphere which can be inflated is supported, and connected with the internal surface of the outer tube by sealing; the second guide tube approaches the upper surface of the sphere, and a device of a pressure entrance is arranged; thereby, a second ejector is formed.

Description

Waterbearing stratum oxidation and settling region or reduction zone form device

The present invention relates to the described technology finishing device of a kind of printed publication (Publication Print) WO92/00 918 claims 1, promptly in the waterbearing stratum, form an oxidation and settling region or reduction zone, be distributed in a bite or the pumped well of purifying waste water more than a bite on every side between many perfusion wells, this district is for the usefulness of unwanted material reduction of on-the-spot underground water or precipitation, service area intermittently forms between every pair of adjacent perfusion well, its method (i) is when forming oxidation and settling region, oxygen, oxygen-containing gas or put in the water that the oxygen thing adds two mouthfuls of wells, or when forming the reduction zone, the oxygen consumption thing is added in the water of two mouthfuls of wells; (ii) from bottom to top, draw water in a bite well therein, and also draw water in another mouthful well from the top down, thereby form a circulation loop in the waterbearing stratum between Liang Koujing, above-mentioned perfusion well respectively has an outer tube, carries the underground water part porose permeable in one section at least.

According to the aforementioned means that WO92/00918 recommends, operation is all satisfactory in many purposes.In some cases, " trouble " appears in underground water, seriously sneaks into pollutent, and it is quite serious to be originally that injector stops up, and causes this process to slow down.Particularly the deflection district of each ligament is blocked.Outer tube only shows an internal surface and contacts with water, and interior Guan Ze is by the inside and outside encirclement of the water of " trouble ".Therefore annular geographic surfaces externally and internally forms throw out between pipe, causes serious obstruction, and flowing water is obstructed.Further prove and be difficult to flushing, otherwise be exactly that above-mentioned throw out is difficult to removing because perfusion well casing footpath is thinner.

Thereby the objective of the invention is to take a kind of different design apparatus to eliminate above-mentioned shortcoming for this reason.The principal character of this invention is: in the outer tube upper end, adorn a circulation vessel, from this container one side, the 1st conduit is arranged, in outer tube, extend to following, arrive the waterbearing stratum upper height at last, and, adorn a pressure entrance device in the high slightly part of its oral area, thereby injector in the formation, and, the 2nd conduit being arranged at opposite side, its end is below pipe meshed portion middle part or middle part, in the conduit lower end, support the spheroid that an outside seal is installed, it is inflatable, with outer pipe internal surface sealing engagement, above-mentioned the 2nd conduit is near above the above-mentioned spheroid, adorn a pressure entrance device, thereby form the 2nd injector, two pressure entrance devices all are connected with one or more pressure sources that match with spheroid.

Details are as follows to the present invention referring now to accompanying drawing, and Fig. 1 is a pair of well axial section synoptic diagram, and Fig. 2 is the longitudinal sectional drawing of apparatus of the present invention.

Outer tube 1 is arranged shown in the figure, and this pipe is preferably round shape, inserts undergroundly, and at least to containing the underground water part, promptly from ground water table 11, one section part is porose permeable in the above.On aforementioned tube 1 top, a circulation vessel 2 is arranged, be contained on ground or the ground, from this container the 1st conduit 3 is arranged, in outer tube 1, extend downwards, arrive the waterbearing stratum upper height at last.In the high slightly part of above-mentioned conduit 3 oral areas, adorn a pressure entrance device 5, go up injector thereby form.In addition, also have the 2nd conduit 4, in outer tube 1, extend downwards, arrive at last below buried pipe 1 meshed portion middle part or the middle part.In above-mentioned conduit bottom, adorn the spheroid 7 that an outside seal is installed, it is inflatable, with outer tube 1 internal surface sealing engagement.In the high slightly part of spheroid 7, the 2nd conduit 4 supports a pressure entrance device 6, thereby forms the 2nd injector.Two pressure entrance devices 5,6 all are connected with one or more pressure sources that match with spheroid 7.Forming under the oxidation zone situation, above-mentioned pressure fluid is an air, by the compressor supply.And in reduction process, the injector pressure fluid draws water or the aqueous solution for (not shown) pump that matches, and spheroid 7 still links to each other with pressurization air source by flexible pipe 10 simultaneously.

Circulation vessel 2 is circular shape, to improve throughflow, produces sedimentary danger thereby reduce the said vesse internal surface.In addition, container 2 can be adorned a ventilation bend pipe 8, but controls with a valvegear 9 counterpart cross sections.

Conduit 3 and 4 major parts are plastic hose preferably.

Fig. 1 is a well position example, forms an oxidation and settling region or reduction zone between its well casing A and the B, at this moment prepares to adopt contrive equipment in this pipe, so that form required effective circulation loop in the waterbearing stratum.

The operating method of said apparatus is as follows: operational hypothesis is spheroid 7 inflations.Therefore with outer tube 1 internal surface sealing engagement,,, outgas so water upwards is pumped to circulation vessel 2 with injector in forced air or the water supply or pressure entrance device 5.Outlet valve 9 on container 2 ventpipes 8 is limited in appropriate level.Water just is pressed towards the below so, by conduit 4, enters pipe 1 bottom below the spheroid 7, and water is from be pressed on every side the place here.

Can hydraulic pressure upward,, enter container 2 at following injector or pressure entrance device 6 air supplies or water/aqueous solution on the contrary, outgas by conduit 4.Then, current return conduit 3, are forced out, and enter in the underground water in place above the spheroid 7.

If unwanted throw out occurs in the pipe and in the conduit 3 and 4, can after the emptying of spheroid air, wash at an easy rate.

Claims

1. in the waterbearing stratum, form the device of an oxidation and settling region or reduction zone, oxidation and settling region or reduction zone are distributed in flatly or purify waste water pumped well more than a bite on every side between many perfusion wells, this district is for the usefulness of on-the-spot reduction of the unwanted material of underground water or precipitation, the expectation district intermittently forms between every pair of adjacent perfusion well, it is characterized in that: adorn a circulation vessel (2) in outer tube (1) upper end, there is the 1st conduit (3) under outer tube (1) is introversive, to extend on the one hand from this container, arrive the waterbearing stratum upper height at last, and adorn a pressure entrance device (5) in the high slightly part of its oral area, thereby injector in the formation, and the 2nd conduit (4) is arranged on the other hand, its end is below pipe (1) meshed portion middle part or middle part, support the spheroid (7) that an outside seal is installed in the conduit lower end, it is inflatable, with outer tube (1) internal surface sealing engagement, above-mentioned the 2nd conduit is equipped with a pressure entrance device (6) near above the above-mentioned spheroid, thereby form the 2nd injector, two pressure entrance devices (5,6) all are connected with the one or more pressure source that matches with spheroid (7);

Circulation vessel (2) is a circular shape, to improve throughflow, produces sedimentary danger thereby reduce inner surface of container;

Circulation vessel (2) have one the ventilation bend pipe (8), with a valvegear (9) but the counterpart cross section control.

2. according to the device of claim 1, it is characterized in that: the most of length of conduit (3,4) comprises plastic hose.

3. according to the device of claim 1, it is characterized in that: in oxidising process, pressure fluid comprises air, is supplied with by compressor, and in reduction process, and the pressure fluid that leads to inlet device (5,6) then comprises water or the similar suitable fluid from respective pump.