CN207581583U - Abandoned mine acid waste water processing system - Google Patents
Abandoned mine acid waste water processing system Download PDFInfo
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- CN207581583U CN207581583U CN201721271527.3U CN201721271527U CN207581583U CN 207581583 U CN207581583 U CN 207581583U CN 201721271527 U CN201721271527 U CN 201721271527U CN 207581583 U CN207581583 U CN 207581583U
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- waste water
- acid waste
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Abstract
The utility model discloses a kind of abandoned mine acid waste water processing system.The processing system is made of adjusting processing unit, chemical treatment integrated treatment unit, clear water processing unit, combined artificial wetland treatment unit and the submerged forest unit by placed in series；The chemical treatment integrated treatment unit the sequentially connected aeration tank of pipeline, mixing pit, reaction tank and sedimentation basin by being made up of.This abandoned mine acid waste water processing system can effectively remove the pH mining area acid waste waters exceeded not less than 3, heavy metals exceeding standard, nitrate nitrogen, can effectively control pollution of the abandoned mine acid waste water to downstream water, underground water, soil.It is found by being embodied, for abandoned mine acid waste water after treatment method is disposed, water outlet disclosure satisfy that pH is 6~8, heavy metal concentration reaches pollutant emission standard, nitrate nitrogen substantially meets surface water IV standards.
Description
Technical field
The utility model belongs to the technical field of prevention and cure of pollution, specifically devises that a kind of operation and maintenance are simple, construction cost
The processing system of low, efficient abandoned mine acid water pollution.
Background technology
Mine wastewater is one of primary pollution source of mine environment, wherein again the most serious with the harm of acid waste water.Ore deposit
Mountain waste water is generally unable to direct circulation utilization, if being discharged into the water bodys such as river, lake, water body pH will be caused to change, be unfavorable for
Bacterium and the growth of microorganism interfere the self-purification of water.Being discharged into for acid waste water leads to water quality acidification, contains heavy metal ion simultaneously
Acid waste water can soil poisoning, cause plant exhausted, dead.Therefore, eliminating the harm of acid wastewater in mine has become exploitation
It has to consider the problems of during mine.
With the termination of mining activity, a large amount of mines are discarded, at this point, barren rock is in air and microorganism in mine wall, well
Collective effect under, oxidation reaction production highly acid substance occurs, and then dissolve out the contents of many kinds of heavy metal ion in ore, generation contains
The acid waste water of the pollutants such as copper, iron, lead, zinc, cadmium, arsenic not only gushes out earth's surface and causes the heavy metal-polluted of mining area and receiving water body
Dye, and cause underground water cross strata pollution by channels such as mining area stratum crack, tomographies.
Abandoned mine acid waste water feature has：First, acid, containing more heavy metal ion, sulfate, nitrate contain
Amount is higher, second is that water is big, the time of flow is long, third, water, variation water quality are big.General processing method has：The precipitation method, biology
Method, oxidation-reduction method, ion-exchange, solvent extraction, membrane processing method etc..Wherein, the precipitation method are to pollutants such as heavy metal, pH
With great effect, but the pollutant removals such as nitrate nitrogen are little；Bioanalysis needs that specific functional flora is selected to locate
Some of the contaminants, such as Thiobacillus ferrooxidans are managed, this causes the cost of biological treatment to be significantly increased, and due to lacking carbon source
Reason, some conventional biological processes can not remove the pollutants such as nitrate nitrogen substantially；Ion-exchange, solvent extraction, film process
Method, processing cost is higher, and for abandoned mine, construction, operating cost are excessively high.
Utility model content
To solve the above problems, the utility model is intended to provide a kind of abandoned mine acid waste water processing system, saving
Construction and operation cost on the basis of simplifying maintenance management, efficiently handles abandoned mine acid waste water, to reduce it to receiving water
The pollution of body, underground water.
In order to achieve the above objectives, the utility model abandoned mine acid waste water processing system, the processing system is by leading to
Adjusting processing unit, chemical treatment integrated treatment unit, clear water processing unit, the combined Manual moist of piping series connection are located in
Manage unit and submerged forest unit composition.
Preferably, the chemical treatment integrated treatment unit by by the sequentially connected aeration tank of pipeline, mixing pit,
Reaction tank and sedimentation basin composition.
Preferably, the aeration tank include aeration tank ontology, be provided in the aeration tank ontology aeration supervisor,
Several aeration branch pipes and aeration tube buttress connected with aeration supervisor；The aeration branch pipe is arranged in rows in aeration tube buttress
On, it is provided with solarization air cap on aeration branch pipe, is aerated 3~5mm of bore dia, the spacing 200mm between two neighboring solarization air cap, trepanning
45 ° obliquely of angle.
Preferably, the mixing pit includes mixing pit ontology, returned sludge is provided in the mixing pit ontology
Pipe and blender；The reflux sludge tube is connected by pipeline with return sludge pump mud mouth, the mud inlet of return sludge pump
It is connected by pipeline with sedimentation basin bottom；Returned sludge gate valve is provided on the pipeline；
One control device controls signal to control returned sludge gate valve, return sludge pump and the stirring for exporting
Machine is run.
Preferably, the reaction tank includes reaction tank ontology, in being provided in reaction tank ontology and medicament pipe and stir
Mix machine, neutralize medicament pipe and be connected by pipeline with neutralizing pharmacy jar, in being provided on the pipeline with medicament valve；
One control device controls signal so that the neutralization medicament valve and blender to be controlled to run for output.
Preferably, the sedimentation basin includes sedimentation basin ontology, concrete pipe is provided in sedimentation basin ontology, concrete pipe leads to
Piping is connected with coagulated agent tank, and coagulation valve is provided on the pipeline；One control device, for exporting control letter
Number the coagulation valve to be controlled to run；The sedimentation basin bottom also connects a residual sludge pump；The control device is defeated
Go out to control signal to control the excess sludge pump operation.
Preferably, the combined artificial wetland treatment unit is connected by several groups of vertical current constructed wetlands being arranged in series
Connect, every group of vertical current constructed wetland from be arranged in series it is lower to vertical current constructed wetland and on to vertical current constructed wetland group
Into；Wherein, pass through pipeline to the water outlet of vertical current constructed wetland on upstream in two adjacent groups vertical current constructed wetland
It is connected with positioned at the lower of downstream to the water inlet of vertical current constructed wetland.
Preferably, the vertical current constructed wetland from top to bottom includes plantation layer, with water layer, packing layer, transition successively
Layer sum aggregate water layer.
Preferably, further include a horizontal drowned flow artificial wet land, wherein, to vertical on last group of vertical current constructed wetland
The water outlet of artificial wetland is connected with the water inlet of horizontal drowned flow artificial wet land.
This abandoned mine acid waste water processing system can effectively remove pH and surpass not less than 3, heavy metals exceeding standard, nitrate nitrogen
Target mining area acid waste water can effectively control pollution of the abandoned mine acid waste water to downstream water, underground water, soil.It is logical
It crosses specific implementation to find, for abandoned mine acid waste water after the disposition of present treatment system, water outlet disclosure satisfy that pH for 6~8, heavy metal
Concentration reaches pollutant emission standard, nitrate nitrogen substantially meets surface water IV standards.
Description of the drawings
Fig. 1 the utility model abandoned mine acid waste water processing system process flow chart.
Fig. 2 is chemically treated the floor map of integrated treatment unit.
Fig. 3 is the schematic cross-sectional view of Fig. 2.
The floor map of the combined artificial wetland treatment units of Fig. 4.
Fig. 5 is the schematic cross-sectional view of Fig. 4.
Specific embodiment
As shown in Figure 1, the abandoned mine acid waste water processing system of the utility model, by the adjusting by placed in series
Manage unit, chemical treatment integrated treatment unit, clear water processing unit, combined artificial wetland treatment unit and submerged forest list
Member composition.
Such as Fig. 1, acid waste water is a regulating reservoir from adjusting processing unit, adjustings processing unit is flow to, be substantially carried out storing,
Collect waste water.Acid waste water into regulating reservoir drains into chemical treatment integrated treatment unit, warp by gravity flow or elevator pump pump
Clear water processing unit is drained into through flowing automatically or pumping after chemical treatment, clear water processing unit is clear water reserviors, if clear water reserviors detect nitrate nitrogen
Concentration is not high, can be immediately discharged to submerged forest processing unit, if clear water reserviors detection nitrate is higher, in chemical treatment one
Change in processing unit and add carbon source, then drain into combined artificial wetland treatment unit and carry out biological treatment, processing heel row is extremely
Submerged forest processing unit, through submerged forest treated discharged wastewater met the national standard.
Wherein, above-mentioned chemical treatment integrated treatment unit, by passing through the sequentially connected aeration tank A-1 of pipeline, mixing
Pond A-2, reaction tank A-3 and sedimentation basin A-4 compositions.
Aeration tank A-1 includes aeration tank ontology, aeration supervisor A-7 is provided in the aeration tank ontology, with being aerated
It is responsible for several aeration branch pipe A-8 of connection and aeration tube buttress A-9；The aeration branch pipe is arranged in rows in aeration tube buttress
On, it is provided with solarization air cap on aeration branch pipe, is aerated 3~5mm of bore dia, the spacing 200mm between two neighboring solarization air cap, trepanning
45 ° obliquely of angle.
Mixing pit A-2 includes mixing pit ontology, and reflux sludge tube and blender are provided in the mixing pit ontology
A-11；The reflux sludge tube is connected by pipeline with return sludge pump A-17 mud mouths, and the mud inlet of return sludge pump leads to
Piping is connected with sedimentation basin bottom；Returned sludge gate valve A-14 is provided on the pipeline；Control device, for exporting
Signal is controlled so that the returned sludge gate valve, return sludge pump and blender to be controlled to run.
Reaction tank A-3 includes reaction tank ontology, in being provided in reaction tank ontology and medicament pipe A-13 and blender A-
11, neutralize medicament pipe by pipeline with neutralize pharmacy jar be connected, in being provided on the pipeline with medicament valve；One control
Device controls signal so that the neutralization medicament valve and blender to be controlled to run for output.
Sedimentation basin A-4 includes sedimentation basin ontology, concrete pipe A-16 is provided in sedimentation basin ontology, concrete pipe passes through pipeline
It is connected with coagulated agent tank, coagulation valve is provided on the pipeline；One control device controls signal to control for exporting
The system coagulation valve operation.Sedimentation basin bottom also connects a residual sludge pump A-24；The control device output control letter
Number to control the excess sludge pump operation.
Above-mentioned control device can be one, can also be every as needed in order to be uniformly controlled to each unit
A unit sets a control device, to control each unit alone.PLC, microcontroller etc. may be used to realize in control device.
It is chemically treated integrated treatment cell operation process：
Such as Fig. 1, waste water is first discharged into aeration tank (A-1) from water inlet pipe (A-5), there is aeration supervisor (A- in aeration tank (A-1)
7) and aeration branch pipe (A-8) and aeration tube buttress (A-9), aeration branch pipe (A-8) trepanning, in order to the waste water of entrance into
Row aerating oxidation.(A-10) is exported into mixing pit (A-2), mixing pit (A-2) by aeration tank by the waste water of aerating oxidation
In there are pass through reflux sludge tube (A-15)；Control device control returned sludge gate valve (A-14) unlatching at this time, returned sludge
(A-17) unlatching, excess sludge gate valve (A-18) closing, residual sludge pump (A-24) closing are pumped, in flat slurry blender (A-11)
Under the action of, waste water is sufficiently mixed with returned sludge, and the waste water being adequately mixed exports (A-12) by mixing pit and enters reaction
Pond (A-3) adds in neutralization medicament with waste water in flat slurry blender (A- in reaction tank (A-3) by neutralizing medicament pipe (A-13)
11) it is fully reacted under the action of, waste water is drained by precipitation by internal pipeline (A-20) and water outlet horn mouth (A-22) after reaction
Pond (A-4) adds flocculation medicament by coagulation and carbon source pipe (A-16) at this time, if nitrate nitrogen is excessively high at this time, while passes through coagulation
Carbon source medicament is added with carbon source pipe (A-16), after fully reacting, precipitating in sedimentation basin (A-4), water outlet passes through triangular-notch weir (A-
21) in overflow to the outlet pipe (A-6) of processing equipment, it is discharged sluice valve (A-23) at this time and opens, water outlet and then progress are in next step
Processing.Free time is run, when intaking, closing volume sludge gate valve (A-14), closing volume sludge pump (A-17) are not opened
It opens excess sludge gate valve (A-18), open residual sludge pump (A-24), chemically treated excess sludge is drained and is subsequently located
Reason.
Wherein, above-mentioned control device carries out control as follows in one embodiment：
Waste water is 2~5 hours in the residence time of aeration tank (A-1), and gas-water ratio is not less than 3；Sedimentation basin (A-4) bottom is set
Return sludge pump (A-17) is put, return sludge ratio is not less than 1, is arranged outside excess sludge.The mixing pit (A-2) designs incorporation time
It is 5~30 minutes.Reaction tank (A-3) the design reaction time is 20~60 minutes.The design residence time of sedimentation basin (A-4) is 30
~120 minutes.
Above-mentioned artificial wetland treatment unit is formed by connecting by several groups of vertical current constructed wetlands being arranged in series, every group
Vertical current constructed wetland from be arranged in series it is lower to vertical current constructed wetland and on form to vertical current constructed wetland；Wherein, phase
To the water outlet of vertical current constructed wetland by pipeline and positioned at downstream on upstream in adjacent two groups of vertical current constructed wetlands
Lower be connected to the water inlet of vertical current constructed wetland.Wherein, vertical current constructed wetland from top to bottom successively include plantation layer,
With water layer, packing layer, transition zone sum aggregate water layer.Water outlet on from last group of vertical current constructed wetland to vertical current constructed wetland
Mouth is also connected with the water inlet of horizontal drowned flow artificial wet land, so as to form combined artificial swamp.
Fig. 4 and Fig. 5 is the structure diagram of one specific embodiment of artificial wetland treatment unit, including one group of vertical current
The combined artificial swamp of artificial swamp and horizontal drowned flow artificial wet land composition, waste water are introduced into the water inlet pipe of hybrid constructed wetland
(B-4), then matched by distribution main (B-5) into trepanning range pipe (B-6) to vertical current constructed wetland (B-1) downwards
Water, waste water pass sequentially through plantation layer (B-1-5), with water layer (B-1-4), packing layer (B-1-3), transition zone (B-1- from top to bottom
2) sum aggregate water layer (B-1-1) is then flow to by the trepanning collector pipe (B-8) of bottom to vertical current constructed wetland (B-2),
Pass sequentially through from lower to upper collection water layer, transition zone, packing layer, with water layer and plantation layer, flow into vertical current constructed wetland (B-
2) trepanning range pipe (B-9), remittance is supreme to vertical current constructed wetland (B-2) outfall sewer (B-10), drains into horizontal drowned flow
The water distributing trough (B-15) of artificial swamp (B-3), then by undercurrent sparge pipe (B-11) into drowned flow artificial wet land purifying area, only
Change area to be made of plantation floor (B-3-2) and filter material layer (B-3-1), water outlet passes through undercurrent collection branch pipe (B-13) into catch basin
(B-16), overflow to outlet pipe (B-14) is discharged, thereafter into submerged forest processing unit.Wherein, it is lower wet to perpendicular flow artificial
Ground (B-1) and between vertical current constructed wetland (B-2), horizontal drowned flow artificial wet land (B-3) it is intermediate, using closed barricade
(B-7) separate.
Wherein, collection water layer (B-1-1) bottom setting antiseepage of vertical current constructed wetland (B-1, B-2), anti-corrosion, impervious barrier are adopted
With geotextiles+HDPE antiseepage films+glass fabric, collection water layer (B-1-1) is using grain size 16-32mm gravels, transition zone (B-1-2)
Using grain size 5-10mm gravels, packing layer (B-1-3) is using grain size 2-6mm coarse sands, with water layer (B-1-4) using grain size 16-
32mm gravels, plantation layer (B-1-5) is using planting soil, plantation layer plantation emergent aquactic plant.
Wherein, horizontal drowned flow artificial wet land (B-3), filter material layer (B-3-1) bottom and top set antiseepage, erosion resistant coating respectively
And loaded filter, impervious barrier use geotextiles+HDPE antiseepage films+glass fabric, filter material layer (B-3-1) is using grain size 20-60mm
Gravel, loaded filter use geotextiles, and plantation layer (B-3-2) plants emergent aquactic plant using planting soil.
Wherein, the range pipe in vertical current constructed wetland, collector pipe should be respectively arranged in water layer sum aggregate water layer, phase
Adjacent range pipe or tube spacing of catchmenting should be 0.5~4.0m.Range pipe, collector pipe trepanning 0.1~0.5m of spacing, opening diameter
5~30mm.
Above-mentioned submerged forest processing unit can utilize existing abandoned mine downstream pond or newly dig pond, and the depth of water 0.5~
1.5 rice.Kind of planting submerged plant in the pool, submerged plant planting ratio are not less than 60%, design 2~5 days residence times.
This abandoned mine acid waste water processing system can effectively remove pH and surpass not less than 3, heavy metals exceeding standard, nitrate nitrogen
Target mining area acid waste water can effectively control pollution of the abandoned mine acid waste water to downstream water, underground water, soil.It is logical
It crosses specific implementation to find, for abandoned mine acid waste water after the disposition of present treatment system, water outlet disclosure satisfy that pH for 6~8, heavy metal
Concentration reaches pollutant emission standard, nitrate nitrogen substantially meets surface water IV standards.
Many details described in detail above are to fully understand the utility model.But above description is only this practicality
Novel preferred embodiment, the utility model can be much to implement, therefore different from other modes described here
The utility model is not limited by specific implementation disclosed above.Meanwhile any those skilled in the art are not departing from this
Under utility model technical solution ambit, all using the methods and technical content of the disclosure above to the utility model technical side
Case makes many possible variations and modification or the equivalent embodiment for being revised as equivalent variations.It is every without departing from the utility model
The content of technical solution, according to the technical essence of the utility model any simple modification made to the above embodiment, equivalent change
Change and modification, still fall within technical solutions of the utility model protection in the range of.
Claims (9)
1. a kind of abandoned mine acid waste water processing system, which is characterized in that the processing system is by passing through placed in series
Adjust processing unit, chemical treatment integrated treatment unit, clear water processing unit, combined artificial wetland treatment unit and underwater
Forest unit forms.
2. acid waste water processing system in abandoned mine as described in claim 1, which is characterized in that the chemical treatment one
Change processing unit by being made up of the sequentially connected aeration tank of pipeline, mixing pit, reaction tank and sedimentation basin.
3. acid waste water processing system in abandoned mine as claimed in claim 2, which is characterized in that the aeration tank includes exposing
Gas pond ontology is provided with aeration supervisor, several aeration branch pipes connected with aeration supervisor and exposure in the aeration tank ontology
Tracheae buttress；The aeration branch pipe is arranged in rows on aeration tube buttress, and solarization air cap is provided on aeration branch pipe, and solarization air cap is straight
3~5mm of diameter, the spacing 200mm between two neighboring solarization air cap, 45 ° obliquely of blowing angle.
4. acid waste water processing system in abandoned mine as claimed in claim 2, which is characterized in that the mixing pit includes mixed
Pond ontology is closed, reflux sludge tube and blender are provided in the mixing pit ontology；The reflux sludge tube passes through pipe
Road is connected with return sludge pump mud mouth, and the mud inlet of return sludge pump is connected by pipeline with sedimentation basin bottom；Described
Returned sludge gate valve is provided on pipeline；
One control device controls signal so that the returned sludge gate valve, return sludge pump and blender to be controlled to transport for output
Row.
5. acid waste water processing system in abandoned mine as claimed in claim 2, which is characterized in that the reaction tank includes anti-
Pond ontology is answered, in being provided in reaction tank ontology and medicament pipe and blender, neutralization medicament pipe pass through pipeline with neutralizing medicament
Tank is connected, in being provided on the pipeline and medicament valve；
One control device controls signal so that the neutralization medicament valve and blender to be controlled to run for output.
6. acid waste water processing system in abandoned mine as claimed in claim 2, which is characterized in that the sedimentation basin includes heavy
Shallow lake pond ontology is provided with concrete pipe in sedimentation basin ontology, and concrete pipe is connected by pipeline with coagulated agent tank, described
Coagulation valve is provided on pipeline；One control device controls signal that the coagulation valve is controlled to run for exporting；Described is heavy
Shallow lake bottom of pond portion also connects a residual sludge pump；The control device output controls signal that the residual sludge pump is controlled to transport
Row.
7. acid waste water processing system in abandoned mine as described in claim 1, which is characterized in that the combined Manual moist
Ground processing unit is formed by connecting by several groups of vertical current constructed wetlands being arranged in series, and every group of vertical current constructed wetland is set by connecting
Put it is lower to vertical current constructed wetland and on to vertical current constructed wetland form；Wherein, in two adjacent groups vertical current constructed wetland
On upstream to the water outlet of vertical current constructed wetland by pipeline with positioned at the lower to vertical current constructed wetland of downstream
Water inlet is connected.
8. acid waste water processing system in abandoned mine as claimed in claim 7, which is characterized in that the perpendicular flow artificial is wet
Ground from top to bottom includes plantation layer, with water layer, packing layer, transition zone sum aggregate water layer successively.
9. acid waste water processing system in abandoned mine as claimed in claim 2, which is characterized in that further include a horizontal drowned flow people
Work wetland, wherein, to the water outlet and horizontal drowned flow artificial of vertical current constructed wetland on last group of vertical current constructed wetland
The water inlet of wetland is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721271527.3U CN207581583U (en) | 2017-09-29 | 2017-09-29 | Abandoned mine acid waste water processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721271527.3U CN207581583U (en) | 2017-09-29 | 2017-09-29 | Abandoned mine acid waste water processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207581583U true CN207581583U (en) | 2018-07-06 |
Family
ID=62728928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721271527.3U Active CN207581583U (en) | 2017-09-29 | 2017-09-29 | Abandoned mine acid waste water processing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115215513A (en) * | 2022-08-15 | 2022-10-21 | 浙江工业大学 | System and method for controlling acidic wastewater in mine hole in situ by anaerobic methane-ammonia oxidizing bacteria |
-
2017
- 2017-09-29 CN CN201721271527.3U patent/CN207581583U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115215513A (en) * | 2022-08-15 | 2022-10-21 | 浙江工业大学 | System and method for controlling acidic wastewater in mine hole in situ by anaerobic methane-ammonia oxidizing bacteria |
| CN115215513B (en) * | 2022-08-15 | 2024-01-05 | 浙江工业大学 | System and method for controlling mine hole acidic wastewater in situ by anaerobic methane-ammonia oxidation flora |
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