CN208995316U - A kind of passive type biological treatment system of acidic mine waste water - Google Patents
A kind of passive type biological treatment system of acidic mine waste water Download PDFInfo
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- CN208995316U CN208995316U CN201821107554.1U CN201821107554U CN208995316U CN 208995316 U CN208995316 U CN 208995316U CN 201821107554 U CN201821107554 U CN 201821107554U CN 208995316 U CN208995316 U CN 208995316U
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Abstract
The utility model discloses a kind of passive type biological treatment systems of acidic mine waste water, including conditioning tank, conditioning tank connects the oxidization and sedimentation basin that bottom is provided with sludge pipe by water pipe, oxidization and sedimentation basin is connected with vertical current anaerobic biofilter by water pipe, conditioning tank, the liquid level of oxidization and sedimentation basin and vertical current anaerobic biofilter successively reduces, it has been sequentially placed gravel layer from top to bottom in vertical current anaerobic biofilter, organic substrates packing layer and lithosphere, the component of organic substrates packing layer is with shrimp and crab shells, the NEW TYPE OF COMPOSITE organic filler of organic compost and the riverbed bed mud composition rich in sulfate reducing bacteria and quartz sand, it is formed by the quality proportioning of 1:1, vertical current anaerobic biofilter is connected by aqueduct with aerobic clarifying basin, aerobic clarifying basin top is provided with outlet pipe, bottom is provided with sludge pipe.The device of the utility model is easy to operate, and processing speed is fast, and system stability can be good, and operating cost is low.
Description
Technical field
The utility model belongs to the technical field of wastewater treatment, is related to a kind of passive type biological treatment of acidic mine waste water
Device.
Background technique
In recent years, China increases the exploitation of mineral resources, but is difficult to the processing of the acidic mine waste water after exploitation
Reach relevant national standard, such as the requirement of " iron ore pick up emission of industrial pollutants standard (GB28661-2012) ", caused by ring
Border problem is increasingly prominent.Not only pH value is low for acidic mine waste water, and contains the heavy metals such as a large amount of iron, aluminium, zinc, manganese, copper, cadmium, cobalt
Ion and sulfate after acidic mine waste water is discharged into the receiving water bodies such as the river near mine, lake, can not only destroy water body
Self-cleaning, endangers community of aquatic organism, pollutes surrounding body and soil environment, can also industrial and agricultural production and life to downstream resident
Extreme influence is caused, and there is potential health risk.
Currently, to the passive type biological treatment of acidic mine waste water be it is a kind of using microbial biochemical metabolism and physical chemistry
The in-situ remediation method of mechanism synergy has the advantages such as at low cost, easy to operate, surplus sludge volume is low.This method is main
By the sulfate reduction sulphidisation in acidic mine waste water and basicity is generated under anaerobic using sulfate reducing bacteria, into
And sulfide is promoted to react with the heavy metal ion in waste water, the metal sulfide precipitating of indissoluble is generated, thus realization pair
Sulfate, the removal of heavy metal and the neutralization to acidity in acidic mine waste water.At the passive type biology of acidic mine waste water
During reason, the crucial ring that suitable environmental condition is to maintain its high efficiency and continually and steadily runs is provided for sulfate reducing bacteria
One of section, still, due to lacking the nutriments such as dissolved organic carbon, nitrogen in acidic mine waste water, so that sulfate reducing bacteria
Sufficient vital movement can not be carried out, generally requires additional carbon nitrogen source to promote the processing to acidic mine waste water.People at present
Mainly using traditional biological compost as carbon nitrogen source, but its there are operational effects in acidic mine waste water repair process not
Good, the problems such as working life is unstable.
Utility model content
The purpose of the utility model is to provide a kind of passive type biological treatment systems of acidic mine waste water, are passed with solving
The biological compost of system big, carbon nitrogen as the waste residue amount generated in the passive type biological treatment process of the acidic mine waste water of carbon nitrogen source
The problem of source is insufficient and fluctuation of service.
Technical solution used by the utility model is a kind of passive type biological treatment system of acidic mine waste water, including
Conditioning tank, conditioning tank are connected with vertical current anaerobic biofilter, are disposed with from top to bottom in vertical current anaerobic biofilter
Gravel layer, organic substrates packing layer and lithosphere, vertical current anaerobic biofilter bottom are connected with drainage pipeline, and drainage pipeline connects
It is connected to pump, vertical current anaerobic biofilter is connected with aerobic clarifying basin by aqueduct, and aerobic clarifying basin top is provided with water outlet
Pipe, outlet pipe connect artificial wet land system.
The utility model is also characterized by:
Organic substrates packing layer includes being formed with shrimp and crab shells, organic compost and riverbed bed mud rich in sulfate reducing bacteria
Compound organic filler and quartz sand, compound organic filler and quartz sand press the quality proportioning of 1:1.
It is connected between conditioning tank and vertical current anaerobic biofilter by the oxidization and sedimentation basin that both ends are connected with water pipe, is aoxidized
It precipitates bottom of pond portion and sludge pipe is set.
Aqueduct one end is placed in lithosphere, and the other end is placed on aerobic clarifying basin overhead.
Aerobic clarifying basin is in inverted cone shape structure, and aerobic clarification bottom of pond portion is provided with sludge pipe.
The beneficial effects of the utility model are:
(1) acidic mine waste water is carried out at anaerobe using shrimp and crab shells residue as the carbon nitrogen source of passive repair system
Reason can make the sulfate reduction sulphion in waste water, then generate sulfide precipitation with heavy metal.This method both reduces acidity
The sulphates content of mine wastewater also eliminates a large amount of heavy metal in waste water, and problem without secondary pollution.
(2) contain calcium carbonate in shrimp and crab shells residue, can be used as natural neutralizer to neutralize the acid of acidic mine waste water
Degree, meanwhile, using shrimp and crab shells residue as novel carbon nitrogen source substrate, resource is rationally utilized, it is both economically and environmentally beneficial.
(3) through the pretreated acidic mine waste water of system of the utility model after the processing of conventional artificial wet land system
It can reach the standard of integrated wastewater discharge, the system operation cost is low, easy to operate, processing speed is fast and stability is good.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the passive type biological treatment system of acidic mine waste water of the utility model；
In figure, 1. conditioning tanks, 2. oxidization and sedimentation basins, 3. vertical current anaerobic biofilters, 4. gravel layers, 5. organic substrates are filled out
The bed of material, 6. lithospheres, 7. aerobic clarifying basins, 8. outlet pipes, 9. sludge pipes；
Fig. 2 is a kind of effect of the passive type biological treatment system processing waste water acidity of acidic mine waste water of the utility model
Curve graph；
Fig. 3 is that a kind of effect of the passive type biological treatment system processing iron ion of acidic mine waste water of the utility model is bent
Line chart；
Fig. 4 is that a kind of effect of the passive type biological treatment system processing zinc ion of acidic mine waste water of the utility model is bent
Line chart；
Fig. 5 is that a kind of passive type biological treatment system of acidic mine waste water of the utility model handles aluminum ions effect song
Line chart；
Fig. 6 is that a kind of effect of the passive type biological treatment system processing manganese ion of acidic mine waste water of the utility model is bent
Line chart.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
The passive type biological treatment system of a kind of acidic mine waste water of the utility model, as shown in Figure 1, system includes adjusting
Pond 1, oxidization and sedimentation basin 2, vertical current anaerobic biofilter 3 and aerobic clarifying basin 7, conditioning tank 1 and vertical current anaerobic biofilter 3
Between be connected by the oxidization and sedimentation basin 2 that both ends are connected with water pipe, 2 bottom of oxidization and sedimentation basin is provided with sludge pipe, conditioning tank 1,
The liquid level of oxidization and sedimentation basin 2 and vertical current anaerobic biofilter 3 successively reduces, in vertical current anaerobic biofilter 3 from top to bottom
It is sequentially placed gravel layer 4, organic substrates packing layer 5 and lithosphere 6, highly than for 1:12:8, the group of organic substrates packing layer 5
It point is the NEW TYPE OF COMPOSITE organic filler formed with shrimp and crab shells, organic compost and riverbed bed mud rich in sulfate reducing bacteria and stone
Sand is formed by the quality proportioning of 1:1, and 3 bottom of vertical current anaerobic biofilter is connected with drainage pipeline, and drainage pipeline is connected with
Pump, vertical current anaerobic biofilter 3 are connected to aerobic clarifying basin 7 by aqueduct, and aqueduct is by 3 pvc pipes and two screw threads
Z-shaped shape is connected, aqueduct one end is placed in lithosphere 6, and the other end is placed on aerobic 7 overhead of clarifying basin, aerobic clarifying basin 7
Top is provided with outlet pipe 8, and bottom is provided with sludge pipe 9, and outlet pipe 8 connects artificial wet land system.
The effect of main component is respectively such as in a kind of passive type biological treatment system of acidic mine waste water of the utility model
Under:
Conditioning tank 1: realizing the adjusting of water quality and quantity in conditioning tank 1, is right in subsequent vertical current anaerobic biofilter 3
The more sensitive anaerobic reaction of water quality, water and impact load plays the role of auxiliary adjustment, is transported with meeting stablizing for anaerobic reaction
Row；
Oxidization and sedimentation basin 2: by part metals ionic oxide formation at high-valence state (such as divalent state iron be oxidized to after three valence state iron with
After water reaction, ferric hydroxide precipitate is generated) promote its precipitating, oxidation precipitation bottom of pond portion is equipped with sludge pipe, and it is heavy to be conducive to generate
It forms sediment and is discharged, prevent from being deposited in and accumulate to influence treatment effect in pond；
Vertical current anaerobic biofilter 3: acidic mine waste water residence time in vertical current anaerobic biofilter 3 is 18 small
When, vertical current anaerobic biofilter 3 includes from top to bottom gravel layer 4, organic substrates packing layer 5 and lithosphere 6, highly than being 1:
12:8；
The adsorbable a small amount of heavy metal ion of gravel layer 4；
The component of organic substrates packing layer 5 is with shrimp and crab shells, organic compost and riverbed bottom rich in sulfate reducing bacteria
The NEW TYPE OF COMPOSITE organic filler of mud composition and quartz sand are formed by the quality proportioning of 1:1, and wherein main component shrimp and crab shells contain day
Right organic matter-chitin, the carbon-nitrogen ratio of shrimp and crab shells chitin is about 6:9, can create ideal carbon for anaerobic sulfate reducer
Nitrogen source growth conditions also can be used as the substitute of other nitrogen stress substrates, the volatile fatty acid that the fermentation of shrimp and crab shells chitin generates
Electron donor and reducing condition can be provided for sulfate reducing bacteria, in addition, the calcium carbonate in shrimp and crab shells can be recovery Acid mine
The buffer capacity of waste water provides basicity, to reduce the addition of lime stone, shrimp and crab shells chitin exists as solid organic particles
In filter material layer, be conducive to the sustained release in situ of carbon nitrogen source, granular size and unexpansive property help to maintain porosity, prevents
Continuous flowing is blocked caused by system；
Rock selected by lithosphere 6 is lime stone and sandstone, can be provided to restore the buffer capacity of acidic mine waste water
Basicity；
Aerobic clarifying basin 7: the liquid level difference of vertical current anaerobic biofilter 3 and aerobic clarifying basin 7 can realize passive increasing
Oxygen effect promotes organic matter in sludge to carry out aerobic respiration, organic matter is further resolved into inorganic matter, reaches removal pollutant
Function, aerobic clarifying basin 7 facilitates deposition bed mud to be discharged from sludge pipe using the Pool body design of the back taper bodily form, and aerobic clarification
Supernatant in pond 7 is discharged into artificial wet land system by outlet pipe.
A kind of passive type biological treatment system of acidic mine waste water of the utility model, the course of work are as follows:
Acidic mine waste water is stored in conditioning tank 1, then the water quality and quantity in conditioning tank 1 is adjusted, with full
The subsequent anaerobic reaction stable operation of foot, waste water enter oxidization and sedimentation basin 2 from conditioning tank 1 after water inlet pipe under the effect of gravity
In, waste water in oxidization and sedimentation basin 2 by part metals ionic oxide formation at high-valence state, promote its precipitating, deposit is from oxidation precipitation
The sludge pipe of 2 bottom of pond is discharged, and waste water after processing enters under the effect of gravity in vertical current anaerobic biofilter 3, from upper
Gravel layer 4, organic substrates packing layer 5 and lithosphere 6 were successively seeped under, and carried out biochemical reaction in organic substrates packing layer 5,
For waste water when by organic substrates packing layer 5, a large amount of sulfate reductions are sulphion by microbial flora, generate a large amount of basicity
Metal ion is set to generate metal sulfide precipitating in conjunction with sulphion simultaneously, to reach sour in same for treating acidic mine wastewater
The purpose of degree, heavy metal and sulfate, acid waste water residence time in vertical current anaerobic biofilter 3 is 18 hours, is utilized
Waste water after processing is pumped into aerobic clarifying basin 7 by pump by aqueduct, by the supernatant in aerobic clarifying basin 7 by outlet pipe 8
It is discharged into artificial wet land treating system, the sludge in aerobic clarifying basin 7 is discharged from sludge pipe 9.
A kind of processing of the passive type biological treatment system of acidic mine waste water of the utility model for acidic mine waste water
Effect is as shown in table 1.
The treatment effect of pH and each Heavy Metals ion in 1 acidic mine waste water of table
As can be seen from the table:
(1) pH is 3.5 or so in the original water sample of acidic mine waste water, and during continuous 7d handles water sample, pH is most
Height can rise to 7.5 or so.Illustrate that the system can be very good to adjust the pH of waste water, also illustrates with shrimp and crab shells to be mainly to fill out
The organic substrates packing layer 5 of material plays very big work in vertical current anaerobic biofilter 3 to the acidity adjustment of acid waste water
With.
(2) Fe in the original water sample of acidic mine waste water2+Content be 500mg/L or so, in continuous 7d processing water sample
In the process, Fe2+Content be reduced to 4.70mg/L, highest removal rate can achieve 99%.Mainly containing the organic of shrimp and crab shells
Substrate packing layer 5 provides enough carbon nitrogen sources for sulfate reducing bacteria, makes SO4 2-It is reduced to S2-Afterwards, promote metal cations Fe2+With
S2-In conjunction with FeS precipitating is generated, to reach removal Fe2+The effect of ion.
(3) Zn in the original water sample of acidic mine waste water2+Content be 13mg/L or so, in the mistake of continuous 7d processing water sample
Cheng Zhong, Zn2+Content be reduced to 0.01mg/L, close to completely removing Zn2+The effect of ion.Mainly having containing shrimp and crab shells
Machine substrate packing layer 5 provides enough carbon nitrogen sources for sulfate reducing bacteria, makes SO4 2-It is reduced to S2-Afterwards, promote configuration metal ions Zn2+
With S2-In conjunction with ZnS precipitating is generated, to reach removal Zn2+The effect of ion.
(4) Al in the original water sample of acidic mine waste water3+Content be 50mg/L or so, after continuous 7d handles water sample,
Detect Al3+Content be lower than instrument Monitoring lower-cut (detection is limited to 1.0ug/L).
(5) Mn in the original water sample of acidic mine waste water2+Content be 30mg/L or so, after continuous 7d handles water sample,
Detect Mn2+Content be 3.0mg/L or so, removal rate is close to 90%.The mainly organic substrates packing layer 5 containing shrimp and crab shells
Enough carbon nitrogen sources are provided for sulfate reducing bacteria, make SO4 2-It is reduced to S2-Afterwards, metal ions M n2+With S2-It is heavy in conjunction with MnS is generated
It forms sediment, to reach removal Mn2+The effect of ion.
In conclusion processing system can effectively promote the pH of acidic mine waste water to neutrality left and right, also can effectively go
Except the quite high Fe of concentration in acidic mine waste water2+、Al3+、Zn2+And Mn2+, to control acidic mine waste water pollution, protect it is aquatic
Ecological environment plays positive effect.The utility model is shown in that specification is attached for the treatment effect of parameter each in acidic mine waste water
Fig. 2-Fig. 6 in figure.
Claims (4)
1. a kind of passive type biological treatment system of acidic mine waste water, which is characterized in that including conditioning tank (1), the adjusting
Pond (1) is connected with vertical current anaerobic biofilter (3), is set gradually from top to bottom in the vertical current anaerobic biofilter (3)
There are gravel layer (4), organic substrates packing layer (5) and lithosphere (6), vertical current anaerobic biofilter (3) bottom is connected with
Drainage pipeline, the drainage pipeline are connected with pump, and the vertical current anaerobic biofilter (3) is connected with aerobic clear by aqueduct
Clear pond (7), aerobic clarifying basin (7) top are provided with outlet pipe (8), and the outlet pipe (8) connects artificial wet land system.
2. a kind of passive type biological treatment system of acidic mine waste water as described in claim 1, which is characterized in that the tune
It is connected between section pond (1) and vertical current anaerobic biofilter (3) by the oxidization and sedimentation basin (2) that both ends are connected with water pipe, it is described
Sludge pipe is arranged in oxidization and sedimentation basin (2) bottom.
3. a kind of passive type biological treatment system of acidic mine waste water as described in claim 1, which is characterized in that described to lead
Water pipe one end is placed in lithosphere (6), and the other end is placed on aerobic clarifying basin (7) overhead.
4. a kind of passive type biological treatment system of acidic mine waste water as claimed in claim 3, which is characterized in that described good
Oxygen clarifying basin (7) is in inverted cone shape structure, and aerobic clarifying basin (7) bottom is provided with sludge pipe (9).
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110655186A (en) * | 2019-11-19 | 2020-01-07 | 云南大学 | Biochar-based filter bed device and method for treating acidic heavy metal wastewater |
| CN111747511A (en) * | 2020-07-08 | 2020-10-09 | 江西理工大学 | Method and system for synchronously removing ammonia nitrogen and rare earth ion pollution in rare earth mining area |
| CN112777874A (en) * | 2021-01-20 | 2021-05-11 | 喻婕 | Method for treating acidic wastewater containing heavy metals |
| CN114751590A (en) * | 2022-04-19 | 2022-07-15 | 中南大学 | Method for removing high-concentration iron and sulfur and heavy metal pollutants in acid mine wastewater |
| CN116002909A (en) * | 2022-12-29 | 2023-04-25 | 贵州亚太矿业有限公司 | Method for recovering iron from gold concentrate biological oxidation waste liquid |
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2018
- 2018-07-13 CN CN201821107554.1U patent/CN208995316U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110655186A (en) * | 2019-11-19 | 2020-01-07 | 云南大学 | Biochar-based filter bed device and method for treating acidic heavy metal wastewater |
| CN111747511A (en) * | 2020-07-08 | 2020-10-09 | 江西理工大学 | Method and system for synchronously removing ammonia nitrogen and rare earth ion pollution in rare earth mining area |
| CN112777874A (en) * | 2021-01-20 | 2021-05-11 | 喻婕 | Method for treating acidic wastewater containing heavy metals |
| CN114751590A (en) * | 2022-04-19 | 2022-07-15 | 中南大学 | Method for removing high-concentration iron and sulfur and heavy metal pollutants in acid mine wastewater |
| CN116002909A (en) * | 2022-12-29 | 2023-04-25 | 贵州亚太矿业有限公司 | Method for recovering iron from gold concentrate biological oxidation waste liquid |
| CN116002909B (en) * | 2022-12-29 | 2023-07-28 | 贵州亚太矿业有限公司 | Method for recovering iron from gold concentrate biological oxidation waste liquid |
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