CN107935301A - Discarded small-size coal mine acid mine water comprehensive processing method - Google Patents
Discarded small-size coal mine acid mine water comprehensive processing method Download PDFInfo
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- CN107935301A CN107935301A CN201711174575.5A CN201711174575A CN107935301A CN 107935301 A CN107935301 A CN 107935301A CN 201711174575 A CN201711174575 A CN 201711174575A CN 107935301 A CN107935301 A CN 107935301A
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- 239000003245 coal Substances 0.000 title claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000002253 acid Substances 0.000 title claims abstract description 19
- 238000003672 processing method Methods 0.000 title claims abstract description 13
- 239000010410 layer Substances 0.000 claims abstract description 72
- 238000007569 slipcasting Methods 0.000 claims abstract description 30
- 239000003513 alkali Substances 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 230000004888 barrier function Effects 0.000 claims abstract description 16
- 239000011440 grout Substances 0.000 claims abstract description 10
- 239000002344 surface layer Substances 0.000 claims abstract description 9
- 239000003673 groundwater Substances 0.000 claims abstract description 8
- 239000005442 atmospheric precipitation Substances 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims abstract description 7
- 238000012423 maintenance Methods 0.000 claims abstract description 7
- 238000005516 engineering process Methods 0.000 claims abstract description 6
- 239000002351 wastewater Substances 0.000 claims description 59
- 238000012545 processing Methods 0.000 claims description 25
- 238000010276 construction Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 18
- 239000005416 organic matter Substances 0.000 claims description 15
- 238000001556 precipitation Methods 0.000 claims description 13
- 238000009826 distribution Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 12
- 230000004224 protection Effects 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 9
- 239000002689 soil Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000006386 neutralization reaction Methods 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 229910021645 metal ion Inorganic materials 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 238000009954 braiding Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 6
- -1 iron ion Chemical class 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- WAEMQWOKJMHJLA-UHFFFAOYSA-N Manganese(2+) Chemical compound [Mn+2] WAEMQWOKJMHJLA-UHFFFAOYSA-N 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 230000015556 catabolic process Effects 0.000 claims description 5
- 238000006731 degradation reaction Methods 0.000 claims description 5
- 229910001437 manganese ion Inorganic materials 0.000 claims description 5
- 230000000813 microbial effect Effects 0.000 claims description 5
- 239000013618 particulate matter Substances 0.000 claims description 5
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 241000894006 Bacteria Species 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 230000000979 retarding effect Effects 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 2
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 238000004065 wastewater treatment Methods 0.000 claims description 2
- 238000005273 aeration Methods 0.000 claims 1
- 150000002500 ions Chemical class 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 2
- 239000003643 water by type Substances 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 description 11
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000029142 excretion Effects 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 241000269793 Cryothenia peninsulae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/203—Iron or iron compound
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/206—Manganese or manganese compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The present invention provides discarded small-size coal mine acid mine water comprehensive processing method, by blocking surface layer in slip casting filled layer slip casting, grout curing rear formed, reducing the increment of groundwater of the Atmospheric precipitation to abandoned mine Goaf Area in target area；In the mine well head of the preferably discarded small-size coal mine of maintenance condition, permeable reactive barrier, continuous alkali production pond and Manual moist location are continuously set；Drainage canal collection system is built on earth's surface river periphery in target area；Seal treatment is carried out to the bastard coal clitter in target area.Integration technology scheme of the present invention realizes the comprehensive regulation that multiple discarded small-size coal mine acid mine waters are distributed in target area, and highly practical, cost is low, and effect is good.
Description
Technical field
It is comprehensive more particularly, to discarded small-size coal mine acid mine water the invention belongs to the wastewater treating technology field in colliery
Close administering method.
Background technology
There are a large amount of mined out discarded small-size coal mines in south China karst area, in typical southern karst
Area, precipitation enters behind coal seam goaf forms the mine water of iron content, manganese superelevation through immersion, and mine water is from pithead or earth's surface
Karst corridor, crack outflow heel row enter surface water and underground water, cause serious water environment pollution.
At present, domestic treating mine drainage uses end-o f-pipe -control mode more, builds relevant treatment in the end of sewage discharge and sets
Apply, since south China precipitation is big, karst cranny development is more, recharge of ground water condition is preferable, cause sewage load
Larger, processing cost remains high.Simultaneously as small coal mines disperse unordered while there are the coal mining cash that a large amount of earth's surfaces are stacked
Stone, causes the intractability of waste water of mine very big.
The content of the invention
In view of this, the present invention is directed to propose discarded small-size coal mine acid mine water comprehensive processing method, small-sized to discard
Coal mine well head overflows the pollution problem of sewage.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
Discarded small-size coal mine acid mine water comprehensive processing method, includes the following steps：
S1：Region including abandoned mine is set to target area, note is set above the Goaf Area of target area
Starch filled layer；By blocking surface layer in slip casting filled layer slip casting, grout curing rear formed, reducing Atmospheric precipitation to target area
The increment of groundwater of interior abandoned mine Goaf Area；
S2：In the mine well head of the preferably discarded small-size coal mine of maintenance condition, permeable reactive barrier, continuous alkali are continuously set
Produce pond and Manual moist location；
Neutralized using the alkaline neutralization materials of permeable reactive barrier and adsorb the total suspended matter in waste water, iron ion, manganese from
Son and dissolved oxygen content；
The sulfate in waste water is removed using the organic matter layer of continuous alkali process units, is precipitated using basicity layer in waste water
Metal ion；
Using the particulate matter in the soil horizon absorption waste water in Manual moist location, the microbial degradation in Manual moist location is utilized
Assimilate the organic pollution in waste water；
S3：Drainage canal collection system is built on earth's surface river periphery in target area, and drainage canal collection system includes ore deposit
Well waste water drains collection system and end centralized processing system；
S4：Seal treatment is carried out to the bastard coal clitter in target area.
Further, the step S1 is step by step specifically：
S11：Region including abandoned mine is set to target area, target area further includes Goaf Area, to underground
Earth's surface curved bel on the permeable fissure zone in goaf, fissure zone, fissure zone include roof caving band and water flowing fractured zone；
S12：Worked by survey for the purpose of locating hydrogeological resources and gather target area hydrogeologic condition, determine Goaf Area, top plate
Caving zone, water flowing fractured zone, the position feature of earth's surface curved bel；
Determine that underground water enters the water supplementing method of Goaf Area by roof caving band and water flowing fractured zone respectively；
S13：Note of one interval of water flowing fractured zone bottom as Regional is selected according to the position feature of fissure zone
Filled layer is starched, determines distribution occasion, trend and the tendency Distribution Characteristics of slip casting filled layer；
S14：The construction work of main vertical hole or main round is determined according to the position feature of Goaf Area and earth's surface curved bel
Position, according to the distribution occasion of slip casting filled layer, trend and the construction location and technical parameter that are inclined to Distribution Characteristics branched hole, divides
The horizontal pinniform oriented branch holes of Zhi Kongwei or fan-shaped branched hole；
S15：The drilling construction for leading vertical hole or main round is carried out, along main vertical hole or main round deflecting to slip casting filled layer, into
The drilling construction of row branched hole；
S16：Region slip casting is carried out by branched hole, slurries is diffused in slip casting filled layer by pressurization, it is each
A branched hole grout mixing mutually overlaps, and grout curing grouting behind shaft or drift lining filled layer forms closure surface layer, is subtracted by blocking surface layer
The increment of groundwater of few Atmospheric precipitation to abandoned mine Goaf Area in target area.
Further, the step S2 specifically comprises the following steps：
S21：The mine well head of the preferably discarded small-size coal mine of maintenance condition is selected to discard small moulded coal as processing target
There is acid waste water spilling in the mine of ore deposit.
S22：Set permeable reactive barrier to be handled before carrying out in tunnel in mine well head, utilize permeable reactive barrier
Alkaline neutralization materials neutralize and adsorb the total suspended matter in waste water, iron ion, manganese ion and dissolved oxygen content；
S23：Continuous alkali production pond is set outside mine well head, and continuous alkali production pond includes water layer, organic from top to bottom
Nitride layer and basicity layer, waste water flow into water layer, are discharged successively after organic matter layer and basicity layer；
Waste water passes through organic matter layer, using the sulfate reducing bacteria in organic matter layer by sulfate conversion for sulfide or
Elemental sulfur simultaneously settles removal；
Waste water passes through basicity layer, and the metal ion in waste water is removed using the production alkali inorganic matter precipitation in basicity layer；
S24：Manual moist location is set in continuous alkali production pond downstream using in the soil horizon absorption waste water in Manual moist location
Particulate matter, utilize Manual moist location microbial degradation assimilation waste water in organic pollution.
Further, in the step S3, waste water of mine drainage collection system includes the braiding channel built along the river, waste water
End centralized processing system is discharged into by braiding channel, is discharged into river, the treatment process of end centralized processing system again after processing
Including neutralization reaction, preliminary sedimentation, Air Exposure and precipitation process.
Further, end centralized processing system is construction in the waste water treatment plant of downstream area.
Further, bastard coal clitter progress Seal treatment includes the following steps in the step S4：
S41：For gentle slope bastard coal clitter, by the top of cement retardative grave lid bastard coal clitter, being kept off by the stone-laying of C20 paddles
Wall bank protection covers bastard coal clitter surrounding, and C20 paddle stone-laying barricades bank protection sets gutter, and C20 paddle stone-laying barricade bank protections top is set
Green layer；
S42：For river or mountain valley bastard coal clitter, bastard coal clitter is transferred in earthwork hole, and earthwork hole ground is done at antiseepage
Reason, paves covering at least 50cm green layers in bottom after bastard coal clitter.
Relative to the prior art, discarded small-size coal mine acid mine water comprehensive processing method of the present invention have with
Lower advantage：
(1) at the top of the Goaf Area in discarded colliery, closure face is formed by Regional slip casting, closure face is opposite
Water proof cuts off the water-permeable passage of Goaf Area, reaches and reduces Atmospheric precipitation to the sewage increment of abandoned mine, significantly cuts down
The excretion of discarded Technique of Coal Mine Drainage, is greatly reduced the processing total amount and operating cost of waste water control.
(2) make full use of the mine well head in discarded colliery, using Abandoned Tunnel inside well head in certain distance build can
Permeable reactive wall, permeable reactive barrier carry out front-end processing to the waste water of spilling, on the one hand reach the mesh for reducing the total amount of pollutant
Mark, on the other hand can reduce the construction of down-stream treatment facility, can also solve that sewage can not be reduced under MODEL OVER COMPLEX TOPOGRAPHY
The problem for the treatment of facility；Continuous alkali production pond is established in mine outer wellhead, can effectively remove the sulfide and simple substance in waste water
Sulphur, and each metal ion species of precipitation；It is right by the soil in artificial swamp, artificial dielectric, plant, microorganism multiple action
Pollutant in waste water carries out degraded removal, has capital construction and operating cost is low, process equipment is simple and easy to maintain excellent
Point.
(3) can not be realized from cost useless in target area since wastewater effluent mouth disperses and water yield is little
Water process, by setting drainage canal collection system by wastewater collection and guiding to downstream in this administering method, is concentrated by end
Processing system realizes wastewater purification.
(4) bastard coal clitter is source of sewage important in target area, and carrying out Seal treatment to it can effectively prevent outside sewage
Blend outflow.
(5) realized by integration technology scheme and the comprehensive of multiple discarded small-size coal mine acid mine waters is distributed in target area
Close and administer, highly practical, cost is low, and effect is good.
Brief description of the drawings
The attached drawing for forming the part of the invention is used for providing further understanding the invention, the present invention
The schematic description and description of creation is used to explain the invention, does not form the improper restriction to the invention.
In the accompanying drawings：
Fig. 1 is the schematic diagram of the target area described in the embodiment of the present invention；
Fig. 2 is the facility schematic diagram described in the embodiment of the present invention.
Description of reference numerals：
10- Goaf Areas；20- fissure zones；21- roof caving bands；22- water flowing fractured zones；30- earth's surface curved bels；
31- slip casting filled layers；50- permeable reactive barriers；The continuous alkali production ponds of 60-；61- water layers；62- organic matter layers；63- basicity layers；
70- Manual moists location；71- soil horizons.
Embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the invention can
To be mutually combined.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ",
" under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", the orientation or position of the instruction such as " outer "
Relation is based on orientation shown in the drawings or position relationship, is for only for ease of description the invention and simplifies description, without
It is instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as the limitation to the invention.In addition, term " first ", " second " etc. are only used for description purpose, without being understood that
To indicate or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ",
One or more this feature can be expressed or be implicitly included to the feature of " second " etc..In the description of the invention
In, unless otherwise indicated, " multiple " are meant that two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the invention
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or one
Ground connects；Can mechanically connect or be electrically connected；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, can be the connection inside two elements.For the ordinary skill in the art, can be managed by concrete condition
Solve concrete meaning of the above-mentioned term in the invention.
The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments creates.
Problem to be solved by this invention is：Existing country's treating mine drainage uses end-o f-pipe -control mode more, in sewage
Relevant treatment facility is built in the end of discharge, since south China precipitation is big, karst cranny development is more, underground water is mended
It is preferable to condition, cause sewage load larger, processing cost remains high.Simultaneously as small coal mines disperse it is unordered, at the same time
There are the coal mining spoil that a large amount of earth's surfaces are stacked, cause the intractability of waste water of mine very big.
In order to solve the above-mentioned technical problem, as shown in Figure 1, present embodiments providing discarded small-size coal mine acid mine water
Comprehensive processing method, includes the following steps：
S1：Region including abandoned mine is set to target area, is set above the Goaf Area 10 of target area
Slip casting filled layer 31；By blocking surface layer in 31 slip casting of slip casting filled layer, grout curing rear formed, reducing Atmospheric precipitation to mesh
Mark the increment of groundwater of abandoned mine Goaf Area 10 in region；
S2：In the mine well head of the preferably discarded small-size coal mine of maintenance condition, permeable reactive barrier 50, continuous is continuously set
Alkali produces pond 60 and Manual moist location 70；
Neutralized using the alkaline neutralization materials of permeable reactive barrier 50 and adsorb the total suspended matter in waste water, iron ion, manganese
Ion and dissolved oxygen content；
The sulfate in waste water is removed using the organic matter layer 62 of continuous alkali process units, is precipitated using basicity layer 63 useless
Metal ion in water；
The particulate matter in waste water is adsorbed using the soil horizon 71 in Manual moist location 70, utilizes micro- life in Manual moist location 70
Organic pollution in thing degraded assimilation waste water；
S3：Drainage canal collection system is built on earth's surface river periphery in target area, and drainage canal collection system includes ore deposit
Well waste water drains collection system and end centralized processing system；
S4：Seal treatment is carried out to the bastard coal clitter in target area.
The technical solution that the embodiment is provided has the technical effect that：At the top of Goaf Area 10 in discarded colliery, lead to
Cross Regional slip casting and form closure face, it is big to reach reduction with respect to the water-permeable passage of water proof cut-out Goaf Area 10 for closure face
Gas precipitation significantly cuts down the excretion of discarded Technique of Coal Mine Drainage, waste water control is greatly reduced to the sewage increment of abandoned mine
Processing total amount and operating cost；Make full use of the mine well head in discarded colliery, using Abandoned Tunnel inside well head a spacing
From interior construction permeable reactive barrier 50, permeable reactive barrier 50 carries out front-end processing to the waste water of spilling, on the one hand reaches reduction
The target of the total amount of pollutant, on the other hand can reduce the construction of down-stream treatment facility, can also solve complicated landform bar
The problem of sewage treatment facility can not be reduced under part；Continuous alkali production pond 60 is established in mine outer wellhead, can effectively remove waste water
In sulfide and elemental sulfur, and each metal ion species of precipitation；By the soil in artificial swamp, artificial dielectric, plant,
Microorganism multiple action, degraded removal is carried out to the pollutant in waste water, has capital construction and operating cost is low, process equipment is simple
The advantages of single and easy to maintain.
Specifically, the step S1 is step by step specifically：
As shown in Figs. 1-2, S11：Region including abandoned mine is set to target area, target area further includes underground
Goaf 10, wrap to the earth's surface curved bel 30 on the permeable fissure zone 20 in Goaf Area 10, fissure zone 20, fissure zone 20
Include roof caving band 21 and water flowing fractured zone 22；
S12：Worked by survey for the purpose of locating hydrogeological resources and gather target area hydrogeologic condition, determine Goaf Area 10, top
Plate caving zone 21, water flowing fractured zone 22, the position feature of earth's surface curved bel 30；
Determine that underground water enters the moisturizing side of Goaf Area 10 by roof caving band 21 and water flowing fractured zone 22 respectively
Formula；
S13：One interval of 22 bottom of water flowing fractured zone is selected as Regional according to the position feature of fissure zone 20
Slip casting filled layer 31, determine the distribution occasion of slip casting filled layer 31, trend and tendency Distribution Characteristics；
S14：The construction of main vertical hole or main round is determined according to the position feature of Goaf Area 10 and earth's surface curved bel 30
Station, according to the distribution occasion of slip casting filled layer 31, trend and the construction location and technology ginseng that are inclined to Distribution Characteristics branched hole
Number, branched hole are horizontal pinniform oriented branch hole or fan-shaped branched hole；
S15：The drilling construction for leading vertical hole or main round is carried out, along main vertical hole or main round deflecting to slip casting filled layer 31,
Carry out the drilling construction of branched hole；
S16：Region slip casting is carried out by branched hole, slurries is diffused in slip casting filled layer 31 by pressurization, often
One branched hole grout mixing mutually overlaps, and grout curing grouting behind shaft or drift lining filled layer 31 forms closure surface layer, by blocking face
Layer reduces the increment of groundwater of the Atmospheric precipitation to abandoned mine Goaf Area 10 in target area.
The step S2 specifically comprises the following steps：
S21：The mine well head of the preferably discarded small-size coal mine of maintenance condition is selected to discard small moulded coal as processing target
There is acid waste water spilling in the mine of ore deposit.
S22：Set permeable reactive barrier 50 to carry out preceding processing in tunnel in mine well head, utilize permeable reaction
The alkaline neutralization materials of wall 50 neutralize and adsorb the total suspended matter in waste water, iron ion, manganese ion and dissolved oxygen content；
S23：Continuous alkali production pond 60 is set outside mine well head, and continuous alkali production pond 60 includes water layer from top to bottom
61st, organic matter layer 62 and basicity layer 63, waste water flow into water layer 61, are discharged successively after organic matter layer 62 and basicity layer 63；
Waste water passes through organic matter layer 62, using the sulfate reducing bacteria in organic matter layer 62 by sulfate conversion for vulcanization
Thing or elemental sulfur simultaneously settle removal；
Waste water passes through basicity layer 63, and the metal ion in waste water is removed using the production alkali inorganic matter precipitation in basicity layer 63；
S24：Manual moist location 70 is set to be inhaled using the soil horizon 71 in Manual moist location 70 in continuous alkali production 60 downstream of pond
Particulate matter in attached waste water, utilizes the organic pollution in the microbial degradation assimilation waste water in Manual moist location 70.
In the step S3, waste water of mine drainage collection system includes the braiding channel built along the river, and waste water passes through braiding channel
End centralized processing system is discharged into, is discharged into river again after processing, the treatment process of end centralized processing system includes neutralizing anti-
Should, preliminary sedimentation, Air Exposure and precipitation process.
Bastard coal clitter progress Seal treatment includes the following steps in the step S4：
S41：For gentle slope bastard coal clitter, by the top of cement retardative grave lid bastard coal clitter, being kept off by the stone-laying of C20 paddles
Wall bank protection covers bastard coal clitter surrounding, and C20 paddle stone-laying barricades bank protection sets gutter, and C20 paddle stone-laying barricade bank protections top is set
Green layer；
S42：For river or mountain valley bastard coal clitter, bastard coal clitter is transferred in earthwork hole, and earthwork hole ground is done at antiseepage
Reason, paves covering at least 50cm green layers in bottom after bastard coal clitter.
The foregoing is merely the preferred embodiment of the invention, is not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on, should be included in the invention
Protection domain within.
Claims (6)
1. discarded small-size coal mine acid mine water comprehensive processing method, it is characterised in that include the following steps：
S1：Region including abandoned mine is set to target area, sets slip casting to fill out above the Goaf Area of target area
Fill layer；By blocking surface layer in slip casting filled layer slip casting, grout curing rear formed, Atmospheric precipitation is reduced to being discarded in target area
The increment of groundwater of mine Goaf Area；
S2：In the mine well head of the preferably discarded small-size coal mine of maintenance condition, permeable reactive barrier, the production of continuous alkali are continuously set
Pond and Manual moist location；
Neutralized using the alkaline neutralization materials of permeable reactive barrier and adsorb the total suspended matter in waste water, iron ion, manganese ion and
Dissolved oxygen content；
The sulfate in waste water is removed using the organic matter layer of continuous alkali process units, the metal in waste water is precipitated using basicity layer
Ion；
Using the particulate matter in the soil horizon absorption waste water in Manual moist location, assimilated using the microbial degradation in Manual moist location useless
Organic pollution in water；
S3：Drainage canal collection system is built on earth's surface river periphery in target area, and drainage canal collection system is given up including mine
Water drains collection system and end centralized processing system；
S4：Seal treatment is carried out to the bastard coal clitter in target area.
2. discarded small-size coal mine acid mine water comprehensive processing method according to claim 1, it is characterised in that：Step S1
It is step by step specifically：
S11：Region including abandoned mine is set to target area, target area further includes Goaf Area, mined out to underground
Earth's surface curved bel on the permeable fissure zone in area, fissure zone, fissure zone include roof caving band and water flowing fractured zone；
S12：Worked by survey for the purpose of locating hydrogeological resources and gather target area hydrogeologic condition, determine Goaf Area, roof caving
Band, water flowing fractured zone, the position feature of earth's surface curved bel；
Determine that underground water enters the water supplementing method of Goaf Area by roof caving band and water flowing fractured zone respectively；
S13：An interval for selecting water flowing fractured zone bottom according to the position feature of fissure zone is filled out as the slip casting of Regional
Layer is filled, determines distribution occasion, trend and the tendency Distribution Characteristics of slip casting filled layer；
S14：The construction station of main vertical hole or main round is determined according to the position feature of Goaf Area and earth's surface curved bel, according to
The distribution occasion of slip casting filled layer, trend and the construction location and technical parameter that are inclined to Distribution Characteristics branched hole, branched hole is water
Flat pinniform oriented branch hole or fan-shaped branched hole；
S15：The drilling construction for leading vertical hole or main round is carried out, along main vertical hole or main round deflecting to slip casting filled layer, is divided
The drilling construction in branch hole；
S16：Region slip casting is carried out by branched hole, slurries is diffused in slip casting filled layer by pressurization, each point
Branch hole grout mixing mutually overlaps, and grout curing grouting behind shaft or drift lining filled layer forms closure surface layer, is reduced greatly by blocking surface layer
The increment of groundwater of the gas precipitation to abandoned mine Goaf Area in target area.
3. discarded small-size coal mine acid mine water comprehensive processing method according to claim 1, it is characterised in that：Step S2
Specifically comprise the following steps：
S21：The mine well head of the preferably discarded small-size coal mine of maintenance condition is selected as processing target, the ore deposit of discarded small-size coal mine
There is acid waste water spilling in well.
S22：Set permeable reactive barrier to be handled before carrying out in tunnel in mine well head, utilize the alkalescence of permeable reactive barrier
Neutralization materials neutralize and adsorb the total suspended matter in waste water, iron ion, manganese ion and dissolved oxygen content；
S23：Continuous alkali production pond is set outside mine well head, and continuous alkali production pond includes water layer, organic matter layer from top to bottom
With basicity layer, waste water flows into water layer, is discharged successively after organic matter layer and basicity layer；
Waste water passes through organic matter layer, by sulfate conversion is sulfide or elemental sulfur using the sulfate reducing bacteria in organic matter layer
And settle removal；
Waste water passes through basicity layer, and the metal ion in waste water is removed using the production alkali inorganic matter precipitation in basicity layer；
S24：Manual moist location is set in continuous alkali production pond downstream using in the soil horizon absorption waste water in Manual moist location
Grain thing, utilizes the organic pollution in the microbial degradation assimilation waste water in Manual moist location.
4. discarded small-size coal mine acid mine water comprehensive processing method according to claim 1, it is characterised in that：Step S3
In, waste water of mine drainage collection system includes the braiding channel built along the river, and waste water is discharged into end centralized processing system by braiding channel
System, is discharged into river again after processing, and the treatment process of end centralized processing system includes neutralization reaction, preliminary sedimentation, at aeration
Reason and precipitation process.
5. discarded small-size coal mine acid mine water comprehensive processing method according to claim 4, it is characterised in that：End collection
Middle processing system is construction in the waste water treatment plant of downstream area.
6. discarded small-size coal mine acid mine water comprehensive processing method according to claim 1, it is characterised in that：Step S4
Middle bastard coal clitter carries out Seal treatment and includes the following steps：
S41：For gentle slope bastard coal clitter, by the top of cement retardative grave lid bastard coal clitter, passing through C20 paddle stone-laying barricade bank protections
Bastard coal clitter surrounding is covered, C20 paddle stone-laying barricades bank protection sets gutter, and C20 paddle stone-laying barricade bank protections top sets green layer；
S42：For river or mountain valley bastard coal clitter, bastard coal clitter is transferred in earthwork hole, and earthwork hole ground does Anti-seeping technology, spreads
Covering at least 50cm green layers in bottom after flat bastard coal clitter.
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| CN111392921A (en) * | 2020-05-18 | 2020-07-10 | 范誉委 | Comprehensive treatment process for coal washing wastewater and mine wastewater |
| CN111927548A (en) * | 2020-08-19 | 2020-11-13 | 贵州煤设地质工程有限责任公司 | Method for plugging abandoned coal mine well mouth |
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| CN114544900A (en) * | 2022-03-08 | 2022-05-27 | 贵州省地质环境监测院(贵州省环境地质研究所) | Simulation experiment method for acid mine water and geological control of coal mine |
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| CN111302528B (en) * | 2020-02-24 | 2020-11-24 | 江西省科学院 | Comprehensive treatment method for copper mine wastewater |
| CN111392921A (en) * | 2020-05-18 | 2020-07-10 | 范誉委 | Comprehensive treatment process for coal washing wastewater and mine wastewater |
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| US11920473B2 (en) | 2020-07-16 | 2024-03-05 | Nanchang University | Device and method for integrated control of acid wastewater plugging and discharging of abandoned mine |
| CN111927548A (en) * | 2020-08-19 | 2020-11-13 | 贵州煤设地质工程有限责任公司 | Method for plugging abandoned coal mine well mouth |
| CN111927548B (en) * | 2020-08-19 | 2022-03-01 | 贵州煤设地质工程有限责任公司 | Method for plugging abandoned coal mine well mouth |
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| CN112031864A (en) * | 2020-08-31 | 2020-12-04 | 南昌大学 | Acid wastewater plugging and discharging integrated control device and method for remaining mine |
| CN112502640A (en) * | 2020-11-20 | 2021-03-16 | 贵州大学 | Construction method of high-sulfur coal gangue storage yard continuous alkali production permeable curtain |
| CN112830531A (en) * | 2021-01-04 | 2021-05-25 | 吉林大学 | Method for treating acidic water pollution source head of abandoned mine |
| CN112830531B (en) * | 2021-01-04 | 2022-02-25 | 吉林大学 | Method for treating acidic water pollution source head of abandoned mine |
| CN112963199A (en) * | 2021-02-03 | 2021-06-15 | 中煤水文局集团有限公司 | Mine underground water regulation and storage method and regulation and storage system |
| CN114544900A (en) * | 2022-03-08 | 2022-05-27 | 贵州省地质环境监测院(贵州省环境地质研究所) | Simulation experiment method for acid mine water and geological control of coal mine |
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