CN216552034U - Underground water sewage-cleaning and shunting treatment structure for harmful substance storage field - Google Patents
Underground water sewage-cleaning and shunting treatment structure for harmful substance storage field Download PDFInfo
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- CN216552034U CN216552034U CN202122865212.4U CN202122865212U CN216552034U CN 216552034 U CN216552034 U CN 216552034U CN 202122865212 U CN202122865212 U CN 202122865212U CN 216552034 U CN216552034 U CN 216552034U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/30—Landfill technologies aiming to mitigate methane emissions
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Abstract
The utility model discloses a ground water sewage disposal and shunting treatment structure of a harmful substance storage field, which is characterized in that: the storage field warehouse comprises a harmful substance storage field warehouse (1), wherein vertical anti-seepage curtains (5) are arranged in permeable rock-soil layers (2) on the periphery of the storage field warehouse (1), the vertical anti-seepage curtains (5) surround the storage field warehouse (1) along the boundary of the storage field warehouse (1), a drainage tunnel (9) is arranged on the outer side of the vertical anti-seepage curtains (5), and an upward oblique main drainage hole (6), an auxiliary drainage hole (7) and a downward oblique lower main drainage hole (8) are arranged in the drainage tunnel (9). The utility model adopts a comprehensive treatment structure and method of enclosing, leading, dividing and discharging, ensures that harmful wastewater does not flow out, underground water and clear water do not flow in, clear water and sewage do not mix, controls pollution and reduces the wastewater treatment cost.
Description
Technical Field
The utility model relates to a ground water pollutant-removing and shunting treatment structure of a harmful substance storage field, belonging to the field of ground water treatment of harmful substances.
Background
With the high importance of ecological environment protection at the national level, a series of regulations and regulations for ecological environment protection are continuously provided, wherein strict requirements are imposed on the construction and operation of hazardous solid storage yards and hazardous liquid storage (or landfill sites). For example, for the general industrial solid waste of the II type, the landfill site is generally processed by horizontal paving and seepage-proofing treatment, and the percolate is collected and then processed in a centralized way. Due to problems of horizontal paving construction processes and techniques, local leakage of solid waste landfill sites during operation often results, causing leachate to pollute the surrounding environment.
The storage of harmful solid and liquid is usually built in the valley or trough. If the field reservoir is positioned at the source of the groove and is generally positioned in a groundwater supply area, the groundwater level is deep, the damage of a horizontal paving seepage-proofing system and the leakage of harmful wastewater in the field reservoir can enter underground water bodies along channels such as groundwater cracks, pipelines and the like, and finally the problem of mixed flow of sewage and sewage is generated. If the field reservoir is positioned in the middle and lower reaches of the groove, the field reservoir is positioned in a catchment drainage area of surface water and underground water, the underground water level is shallow, the influence of underground water level fluctuation on the horizontal cover is large, even the horizontal cover is damaged, after the horizontal seepage prevention fails, harmful waste water is mixed with the underground water, the underground water pollution and mixed flow of sewage disposal are caused, and the sewage disposal difficulty is very high. If the field reservoir is located in an unfavorable environment area such as karst, the problem of groundwater decontamination mixing flow is more serious.
At present, to the harmful waste water that the seepage came out, because prevention of seepage membrane seepage area is difficult to the accurate positioning, is difficult to realize fixing a point to the level shop cover and restores, harmful waste water gets into underground rock-soil body after, along with groundwater flow direction seepage and diffusion, the degree of depth is big, distributes extensively. The existing cases are treated by adopting a conventional pumping mode, but for bedrock areas, underground water is fracture water, karst areas are karst pipeline water and karst fracture water, the obvious characteristics of nonuniformity and anisotropy are realized, most underground water fracture networks are difficult to be communicated by sparsely distributed pumping wells, and therefore a scheme for pumping and draining the pumping wells to intercept underground water is difficult to obtain a good effect. In some cases, the polluted underground water is collected to form spring water, but in the underground water transportation process, a large amount of rock clear water is supplied in multiple channels, so that the mixed flow sewage is often collected in a large amount, the operation and treatment difficulty and cost are greatly increased, and the environmental risk is prominent.
The Chinese patent 'seepage-intercepting drainage structure suitable for the interlaminar dislocation zone in the underground powerhouse' (application CN202011259228.4, application is China electrical engineering group China east survey design research institute Co., Ltd., inventor Leifenghui, etc.) relates to seepage-intercepting drainage by adopting an anti-seepage curtain and a corridor. The structure is a seepage-stopping drainage structure suitable for an interlaminar dislocation zone in an underground workshop, and aims to block a channel for the interlaminar dislocation zone to seep water to the workshop and reduce the possibility of causing dislocation deformation of the interlaminar dislocation zone due to seepage water. For the underground cavern, especially the underground factory building, the inside is a cavity, so a water collecting and draining system can be arranged in the underground cavern, the draining tunnel and the draining hole of the underground factory building are arranged on the side of the curtain system close to the underground factory building, the drained water is the leaked water between the anti-seepage curtain and the factory building, and meanwhile, the underground factory building does not need to consider the problem of internal water leakage.
Aiming at the problems that harmful waste water enters underground rock-soil bodies and leaks and diffuses along the flow direction of underground water to cause environmental pollution of the underground water due to the fact that an original seepage-proof system is damaged in a harmful solid storage yard and a harmful liquid storage warehouse, an seepage-proof system consisting of a vertical seepage-proof curtain, a deep water-proof stratum or a seepage-proof curtain around the field and a horizontal seepage-proof curtain at the bottom is adopted at the periphery of the field, sewage of the field is enclosed in a permeable rock-soil layer, clean underground water outside the field is blocked outside the seepage-proof system, the clean underground water outside the field is discharged outside a drainage tunnel through a drainage hole outside the curtain, a small amount of sewage permeating into the permeable rock-soil bodies is collected and discharged outside through a sewage pipe in the drainage tunnel at the bottom for centralized discharge treatment, and the patent and literature for split-flow treatment of clear water and sewage are realized.
Disclosure of Invention
The utility model aims to provide a groundwater sewage cleaning and shunting treatment structure of a harmful substance storage field. Through the surrounding, guiding, dividing and discharging treatment structure and method, the harmful wastewater is prevented from flowing outwards, underground water clear water is prevented from flowing into the treated harmful body, the clear water and the sewage are prevented from mixing, the scale of polluted water is controlled, and the wastewater treatment cost is reduced.
The technical scheme of the utility model is as follows: a ground water pollution-removing and shunting treatment structure of a harmful substance storage field comprises a harmful substance storage field library, wherein vertical seepage-proofing curtains are arranged in permeable rock-soil layers around the storage field library, the vertical seepage-proofing curtains surround the storage field library along the boundary of the storage field library, a drainage tunnel is arranged outside the vertical seepage-proofing curtains, and a main drainage hole and an auxiliary drainage hole which are inclined upwards and a lower main drainage hole which is inclined downwards are arranged in the drainage tunnel.
According to the underground water sewage cleaning and shunting treatment structure of the harmful substance storage field, a waterproof stratum or a bottom horizontal anti-seepage curtain is arranged below the storage field library.
According to the underground water pollution-removing and shunting treatment structure of the harmful substance storage field, the grouting tunnel is arranged on the horizontal impervious curtain at the bottom, and the bottom drain holes are obliquely and downwards arranged in the grouting tunnel towards the two sides of the tunnel.
The underground water of aforementioned harmful substance storage field is decontaminated and is shunted processing structure, set up the sewage pipe in the grout tunnel.
According to the underground water sewage-cleaning and shunting treatment structure of the harmful substance storage field, the upper layer curtain and the lower layer curtain of the drainage tunnel are connected by the lapping curtain.
According to the underground water sewage-cleaning and shunting treatment structure of the harmful substance storage field, the bottom of the storage field warehouse is provided with the horizontal anti-seepage cover, and the surface of the storage field warehouse is provided with the surface waterproof cover.
According to the underground water sewage-cleaning and shunting treatment structure of the harmful substance storage field, the mixed liquid drainage horizontal pipe is arranged in the permeable rock-soil layer.
According to the underground water sewage-cleaning and shunting treatment structure of the harmful substance storage field, the vertical impervious curtain is an impervious wall.
A method for treating the underground water in the storage field of harmful substances by cleaning and dividing sewage features that the vertical impervious curtain and the horizontal impervious curtain are arranged around the storage field, the sewage in the storage field or leaked water is enclosed in the permeable rock-soil layer, and the clean underground water is blocked by said impervious system to separate clean water from sewage.
According to the underground water sewage disposal and diversion treatment method for the harmful substance storage field, clean underground water outside the screen is introduced into the clear water drainage tunnel through the drainage hole of the drainage tunnel in the seepage-proofing system and is discharged outside the drainage tunnel, so that the water head difference inside and outside the seepage-proofing system is reduced; and collecting the sewage seeped outside the permeable rock-soil layer in the seepage-proofing system through a sewage pipe, and discharging the sewage for centralized treatment to further reduce the weak seepage of the sewage.
The utility model has the beneficial effects that: compared with the prior art, the utility model encloses the sewage of the field warehouse in the permeable rock-soil layer through an impervious system consisting of the seepage-proofing curtain at the periphery of the field warehouse, the deep water-proof stratum or the seepage-proofing curtain at the periphery of the field warehouse and the horizontal seepage-proofing curtain at the bottom, and keeps the clean underground water outside the field warehouse out of the seepage-proofing system, thereby realizing the separation of clear water and the sewage. And dense drain holes are arranged outside the curtain in the tunnel to introduce clean underground water outside the curtain into the clear water drainage tunnel for outward discharge, thereby reducing the water head difference inside and outside the seepage-proofing system and further reducing the weak internal seepage of clear water. The sewage drain pipe is arranged in the drainage tunnel at the bottom of the seepage-proofing system, a small amount of sewage permeating into the permeable rock-soil body is collected and is discharged outside in a centralized manner, weak seepage of the sewage is further reduced, and external clean underground water is ensured not to be polluted. The utility model adopts a comprehensive treatment structure and method of enclosing, leading, dividing and discharging, ensures that harmful wastewater does not flow out, underground water and clear water do not flow in, clear water and sewage do not mix, controls pollution and reduces the wastewater treatment cost.
Drawings
FIG. 1 is a schematic structural view of the present invention with a water-barrier layer on the bottom;
FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1;
FIG. 3 is a schematic structural view of a bottom bag bottom of a horizontal impervious curtain without a waterproof layer at the bottom of the utility model;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;
fig. 5 is a schematic structural view of a sewage pipe in the grout tunnel.
Reference numerals: 1-storage field library; 2-permeable rock-soil layer; 3-water-resisting stratum; 4-lapping a curtain; 5-vertical impervious curtains; 6-main drainage hole; 7-auxiliary drain holes; 8-lower main drainage hole; 9-a drainage tunnel; 10-groundwater flow direction; 11-surface waterproof covering; 12-horizontal seepage-proofing covering; 13-horizontal drainage pipe for mixed liquor; 14-horizontal impervious curtains; 15-grouting a tunnel; 16-bottom drain holes; 17-sewer pipe.
Detailed Description
The utility model is further illustrated by the following figures and examples, which are not to be construed as limiting the utility model.
The embodiment of the utility model comprises the following steps: a groundwater decontamination shunting treatment structure of a harmful substance storage field comprises a harmful substance storage field library 1, wherein a vertical anti-seepage curtain 5 is arranged in a permeable rock-soil layer 2 around the storage field library 1, the vertical anti-seepage curtain 5 surrounds the storage field library 1 along the boundary of the storage field library 1, a drainage tunnel 9 is arranged outside the vertical anti-seepage curtain 5, and a main drainage hole 6 and an auxiliary drainage hole 7 which are inclined upwards and a lower main drainage hole 8 which is inclined downwards are arranged in the drainage tunnel 9.
An upward inclined main drainage hole 6 is arranged in the drainage tunnel 9 towards the outer side, the height of the upward inclined main drainage hole exceeds the possible underground water level in the permeable rock-soil layer 2, and clean underground water at a high position in the permeable rock-soil layer 2 is guided and drained. An auxiliary water drain hole 7 which is inclined upwards is arranged in the water drain tunnel 9 towards the outer side, and clean underground water in the middle of the permeable rock-soil layer 2 is guided and drained. And a downward inclined lower main drainage hole 8 is arranged in the drainage tunnel 9 outwards, the depth of the downward inclined lower main drainage hole is close to that of the waterproof stratum 3 or exceeds that of the bottom horizontal impervious curtain 14, and clean underground water in the low part of the permeable rock-soil layer 2 is drained. The main drainage hole 6, the auxiliary drainage hole 7 and the lower main drainage hole 8 are arranged along the axis direction of the drainage tunnel, and the distance is small enough, generally 2-3 m. The main drainage hole 6, the auxiliary drainage hole 7 and the lower main drainage hole 8 lead the drained clean underground water to be drained outside the tunnel along the drainage tunnel, and the resource utilization is realized.
A waterproof stratum 3 or a bottom horizontal impervious curtain 14 is arranged below the storage field library 1. The vertical impervious curtain 5 is arranged in the permeable rock-soil layer 2 around the storage field library 1, the vertical impervious curtain 5 surrounds the storage field library 1 along the boundary of the waterproof cover 11 on the surface of the storage field library 1, and if a reliable waterproof stratum 3 exists at the bottom of the storage field library 1, the vertical impervious curtain 5 can be connected with the waterproof stratum 3 so as to reduce the engineering quantity of the vertical impervious curtain 5. The water-resisting stratum 3 can also be a micro water-permeable layer with the water permeability of less than 1 Lu. If no water barrier is present deep, the bottom horizontal impervious curtain 14 is considered. The vertical impervious curtain 5 and the horizontal impervious curtain 14 are enclosed to form a reliable enclosed impervious structure.
The bottom horizontal impervious curtain 14 is provided with a grouting tunnel 15 so as to facilitate the construction of the horizontal impervious curtain 14, and bottom drain holes 16 are obliquely and downwards arranged in the grouting tunnel 15 towards the two sides of the tunnel. Bottom drain holes 16 are obliquely arranged downwards at both sides of the grouting tunnel 15, and clean underground water below the horizontal impervious curtain 14 is drained. The bottom drain holes 16 are arranged along the axial direction of the grouting tunnel, and the distance is small enough, generally 2-3 m.
A sewage pipe 17 is arranged in the grouting tunnel 15. The grouting tunnel 15 may have sewage at the upper part to infiltrate, a sewage pipe 17 is arranged in the grouting tunnel 15, and sewage is introduced into the sewage pipe and discharged out of the grouting tunnel 15 for centralized treatment.
The upper and lower curtains of the drainage tunnel 9 are connected by the lapping curtains 4. The vertical impervious curtain 5 can be drilled and grouted downwards from the ground, when the depth is large, layered drilling and grouting can be performed by using the drainage tunnel 9, and the upper layer curtain and the lower layer curtain of the drainage tunnel 9 are connected by adopting the lap joint curtain 4, so that the whole and impervious effect of the impervious curtain is ensured.
The bottom of the storage field warehouse 1 is provided with a horizontal anti-seepage cover 12, and the surface is provided with a surface waterproof cover 11.
And a mixed liquid drainage horizontal pipe 13 is arranged in the permeable rock-soil layer 2. And (4) draining the sewage in the impervious curtain enclosing area in the permeable rock-soil layer 2 to the outside of the hole for centralized treatment.
The vertical impervious curtain 5 can be changed into an impervious wall according to the requirement.
A method for treating underground water in a hazardous substance storage field by cleaning and shunting sewage comprises the steps of arranging an anti-seepage system consisting of a vertical anti-seepage curtain 5 and a lower waterproof stratum 3 or a bottom horizontal anti-seepage curtain 14 on the periphery of a storage field library 1, enclosing the sewage in the storage field library 1 in a permeable rock-soil layer 2, and blocking clean underground water outside the storage field library 1 outside the anti-seepage system to realize separation of clean water and the sewage.
Clean underground water outside the screen is introduced into the clear water drainage tunnel 9 through the drainage holes of the drainage tunnel 9 in the seepage-proofing system, the water head difference inside and outside the seepage-proofing system is reduced, sewage is collected and treated in the seepage-proofing system through the sewage pipe 17 and is discharged for centralized treatment, and weak seepage of the sewage is further reduced.
Claims (8)
1. The utility model provides a harmful substance storage field's groundwater is decontaminated and is shunted processing structure which characterized in that: the storage field warehouse comprises a harmful substance storage field warehouse (1), wherein vertical anti-seepage curtains (5) are arranged in permeable rock-soil layers (2) on the periphery of the storage field warehouse (1), the vertical anti-seepage curtains (5) surround the storage field warehouse (1) along the boundary of the storage field warehouse (1), a drainage tunnel (9) is arranged on the outer side of the vertical anti-seepage curtains (5), and an upward oblique main drainage hole (6), an auxiliary drainage hole (7) and a downward oblique lower main drainage hole (8) are arranged in the drainage tunnel (9).
2. A harmful substance storage site's groundwater sewage treatment diversion structure according to claim 1, wherein: a waterproof stratum (3) or a bottom horizontal seepage-proofing curtain (14) is arranged below the storage field warehouse (1).
3. A harmful substance storage site's groundwater sewage treatment diversion structure of claim 2, characterized in that: the grouting tunnel (15) is arranged on the bottom horizontal impervious curtain (14), and bottom drain holes (16) are obliquely and downwards arranged in the grouting tunnel (15) towards the two sides of the tunnel.
4. A harmful substance storage site's groundwater sewage treatment diversion structure of claim 3, characterized in that: and a sewage pipe (17) is arranged in the grouting tunnel (15).
5. A harmful substance storage site's groundwater sewage treatment diversion structure of claim 3, characterized in that: the upper and lower curtains of the drainage tunnel (9) are connected by lapping curtains (4).
6. A harmful substance storage site's groundwater sewage treatment diversion structure according to claim 1, wherein: the bottom of the storage yard reservoir (1) is provided with a horizontal anti-seepage cover (12), and the surface is provided with a surface waterproof cover (11).
7. A harmful substance storage site's groundwater sewage treatment diversion structure according to claim 1, wherein: and a mixed liquid drainage horizontal pipe (13) is arranged in the permeable rock-soil layer (2).
8. A harmful substance storage site's groundwater sewage treatment diversion structure according to claim 1, wherein: the vertical impervious curtain (5) is an impervious wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122865212.4U CN216552034U (en) | 2021-11-22 | 2021-11-22 | Underground water sewage-cleaning and shunting treatment structure for harmful substance storage field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122865212.4U CN216552034U (en) | 2021-11-22 | 2021-11-22 | Underground water sewage-cleaning and shunting treatment structure for harmful substance storage field |
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| Publication Number | Publication Date |
|---|---|
| CN216552034U true CN216552034U (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122865212.4U Active CN216552034U (en) | 2021-11-22 | 2021-11-22 | Underground water sewage-cleaning and shunting treatment structure for harmful substance storage field |
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| Country | Link |
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| CN (1) | CN216552034U (en) |
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2021
- 2021-11-22 CN CN202122865212.4U patent/CN216552034U/en active Active
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