CN206814532U - A kind of high iron content high alkalinity mine water treatment system - Google Patents
A kind of high iron content high alkalinity mine water treatment system Download PDFInfo
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- CN206814532U CN206814532U CN201720219493.7U CN201720219493U CN206814532U CN 206814532 U CN206814532 U CN 206814532U CN 201720219493 U CN201720219493 U CN 201720219493U CN 206814532 U CN206814532 U CN 206814532U
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Abstract
A kind of high ferro high alkalinity mine water treatment system is the utility model is related to, the system includes Multi-stage spiral aeration tank, Multi-flow direction reinforced clarifier, ultra-filtration membrane device, pH regulating reservoirs, calcium hydroxide throwing device and sour throwing device；Multi-stage spiral aeration tank, Multi-flow direction reinforced clarifier, ultra-filtration membrane device and pH regulating reservoirs are sequentially connected, calcium hydroxide throwing device is used to add calcium hydroxide in Multi-stage spiral aeration tank, sour throwing device is used to acid being added in pH regulating reservoirs, and the effluent reuse of pH regulating reservoirs uses in ore deposit downhole coal mine washing etc..The utility model solves at present the problem of high iron content high alkalinity mine water can not effectively handle discharge or reuse, influence enterprise's locality water ecological environment.
Description
Technical field
The utility model is related to a kind of high iron content high alkalinity mine water treatment technique and system, i.e., using spiral-flow aeration pond-
Multi-flow direction reinforced clarifier-ultrafiltration-pH regulating reservoirs-effluent reuse handles the technique of mine water and system in the flow of underground.
Background technology
Mine water is the outer draining in progress of coal mining, and its water quality and local quality of groundwater are closely related, but than ground
Lower water generally has the features such as salt content is high, and turbidity is larger, may contain ferrimanganic.Conventional processing mode is gone by coagulating sedimentation
Except the suspension in mine water and heavy metal ion etc., underground or outer row are then back to.
And the mine water of China the north some areas has hardness high alkalinity high, rich in ferrous feature, conventional treatment
Method is difficult to remove ferrous iron, and after causing the water after processing to expose a period of time in atmosphere, ferrous iron small amounts are trivalent
Iron, cause the muddy jaundice of water body.If the iron that Water circulation is brought in underground, water after the processing, which forms precipitation, can be attached to equipment
Surface, the disastrous effects such as equipment Accelerated corrosion are caused, simultaneously because the high rigidity of water, also can accumulate incrustation scale in equipment surface, cause dirt
Lower corrosion；If directly outer arrange in surface water system, iron content in water can be caused to greatly increase, destroy water system biological existence ring
Border, most of biological death is caused, part iron-loving bacteria amount reproduction, rapidly causes the destruction of the aquatic organism ecological balance, and arranged
The high rigidity to discharge water will also result in riverbed salinization of soil.Therefore conventional processing mode can not effectively handle the mine water.
Utility model content
The problem of for above-mentioned high iron content high alkalinity treating mine drainage, the utility model provide a kind of high iron content high alkalinity ore deposit
The system of well water processing.The purpose of this utility model is to provide a kind of high iron content high alkalinity treating mine drainage work of mature and reliable
Skill, discharge or reuse can not effectively be handled by solving current high iron content high alkalinity mine water, influence enterprise's locality water ecological environment
Problem.
The technical solution adopted in the utility model is as follows：A kind of high iron content high alkalinity mine water treatment system, it includes more
Level spiral-flow aeration pond, Multi-flow direction reinforced clarifier, ultra-filtration membrane device, pH regulating reservoirs, calcium hydroxide throwing device and acid add
Device；Multi-stage spiral aeration tank has hydraulic agitation device and aerator, and hydraulic agitation device and aerator are used for ore deposit
Well water carries out abundant hydraulic mixing and aeration；Calcium hydroxide throwing device is used to add calcium hydroxide into Multi-stage spiral aeration tank
It is interior, preferably add calcium hydroxide in rear two-stage spiral-flow aeration pond；Multi-stage spiral aeration tank connects Multi-flow direction reinforced clarifier, is used for
The water outlet in spiral-flow aeration pond is entered Multi-flow direction reinforced clarifier and carry out rapid precipitation, Multi-flow direction reinforced clarifier has front end
Flocculation zone is stirred, for by a part of internal reflux of the sludge of Multi-flow direction reinforced clarifier to Multi-flow direction reinforced clarifier front end
Stir flocculation zone, another part discharge；Multi-flow direction reinforced clarifier connects ultra-filtration membrane device, for by Multi-flow direction reinforced clarifier
Water outlet import ultra-filtration membrane device, the concentrated water of ultrafiltration and daily backwash draining are all back to spiral-flow aeration pond, milipore filter dress
Connection pH regulating reservoirs are put, for the water outlet of ultra-filtration membrane device to be imported into pH regulating reservoirs, sour throwing device is used to acid being added to pH
In regulating reservoir, so that pH is adjusted to 6.5-8.5；PH regulating reservoir bottom of pond portion sets delivery port, for the water outlet that will be flowed out from delivery port
Recycle；It is preferred that it is back to the use such as ore deposit downhole coal mine washing.
Wherein, the Multi-stage spiral aeration tank is handled using series connection, preferably 6 grades, single spiral-flow aeration pond interior shape
For vertical cylinder, perforate is provided with the top of the pond per one-level spiral-flow aeration pond, mine water is by the perforate at the top of pond along pond
Wall tangential direction horizontal water inflow, the spiral shape cyclone mixing effect that axle center is vertical direction is caused using waterpower flowing；Bottom of pond side
Wall sets perforate, and for making water outlet, water pipe connects upwards after the perforate of bottom of pond side wall tangentially horizontally enters into connecting water pipe
The perforate being connected at the top of the pond in next stage spiral-flow aeration pond.
Wherein, each spiral-flow aeration pond pond bottom part down sets conical sludge bucket, and the perforate that bottom of pond side wall is set is located at
The top of conical sludge bucket；Conical sludge bucket is used for the spoil disposal for collecting the corresponding precipitation per one-level spiral-flow aeration pond, is used for
The spoil disposal is all back to Multi-stage spiral aeration tank front end, mixed with the water inlet of mine water.
Wherein, the bottom of pond horizontal layout on the conical sludge bucket top has the gas distribution system for aeration, gas distribution system
Unite as micro-pore aeration system and/or perforated pipe aerating regulation system.
Wherein, the Multi-flow direction reinforced clarifier includes coagulation area, stirring flocculation zone, sloping plate deposition district and sludge area；
The coagulation area sets the upstream of stirring flocculation zone, and is connected with stirring flocculation zone, and the small flco for forming coagulation area enters
Enter to stir flocculation zone；Sloping plate deposition district is arranged on the downstream of stirring flocculation zone, for making to enter in stirring flocculation zone formation big flocculating body
Enter sloping plate deposition district, sludge area is arranged on the lower section of sloping plate deposition district, and big flocculating body touches swash plate surface under gravity
Attachment aggregation is glided, the sludge area sunk to below sloping plate deposition district.
Wherein, Multi-stage spiral aeration tank total residence time was at -6 hours 10 minutes, and the single spiral-flow aeration pond residence time is 2
- 1.5 hours minutes, the air water volume ratio of aeration is 0.1：1 to 10：1, calcium hydroxide add the control of rear water pH value not less than
10, the Multi-flow direction reinforced clarifier residence time is in -2 hours 8 minutes, the sludge in the sludge area of the Multi-flow direction reinforced clarifier
The sludge reflux ratio that portion is back to the stirring flocculation zone of Multi-flow direction reinforced clarifier front end is 10%-90%.It is preferred that multistage rotation
Flow aeration tank total residence time preferably 1.5 hours, preferably six grades of spiral-flow aeration ponds, the single spiral-flow aeration pond residence time is preferred
15 minutes, the air water volume ratio of aeration was preferably 3：1, calcium hydroxide adds rear water pH value and is preferably controlled in 10.3, more flow directions
Strengthen preferably 15 minutes clarifier residence time, the sludge internal reflux in the sludge area of the Multi-flow direction reinforced clarifier to multithread
Sludge reflux ratio to the stirring flocculation zone for strengthening clarifier front end is preferably 50%.
Present treatment system has the following advantages that compared with conventional well water treatment system：(1) can remove in mine water
Ferrous iron, avoid mine Water circulation pipeline and equipment because corrosion occurs for attachment iron rust, and to be substantially free of suspension solid for water outlet
Body and colloid, also mitigate the spot corrosion and dirt attachment of pipeline and equipment；(2) part that can be removed in high alkalinity mine water is hard
Degree and part basicity, avoid the fouling of pipeline and equipment, alleviate and cause soil and riverbed salinization of soil；(3) relatively finer
Control under salt content can also be made not raise or even reduce in water, alleviate the salt erosion of pipeline and equipment, alleviate to periphery
The destruction of the salt balance of water environment；(4) although treating mine drainage cost raises than common process, conveyance conduit is slow down significantly
With the corrosion or fouling of user equipment, the service life of pipeline and equipment is extended, it is totally much more cost effective to consider.
Brief description of the drawings
Fig. 1 is high iron content high alkalinity mine water treatment technique system architecture flow chart；
Fig. 2 Multi-flow direction reinforced clarifier structural representations
Embodiment
As illustrated in fig. 1 and 2, a kind of high iron content high alkalinity mine water treatment system, it includes Multi-stage spiral aeration tank, multithread
To reinforcing clarifier, ultra-filtration membrane device, pH regulating reservoirs, calcium hydroxide throwing device and sour throwing device；Multi-stage spiral is aerated
Pond has hydraulic agitation device and aerator, and hydraulic agitation device and aerator stir for mine water to be carried out into abundant waterpower
Mix and stir aeration；Calcium hydroxide throwing device is used to add calcium hydroxide in Multi-stage spiral aeration tank, is preferably revolved in rear two-stage
Stream aeration tank adds calcium hydroxide；Multi-stage spiral aeration tank connects Multi-flow direction reinforced clarifier, for making going out for spiral-flow aeration pond
Water enters Multi-flow direction reinforced clarifier and carries out rapid precipitation, and Multi-flow direction reinforced clarifier has the stirring flocculation zone of front end, is used for
It is another by the stirring flocculation zone of a part of internal reflux of the sludge of Multi-flow direction reinforced clarifier to Multi-flow direction reinforced clarifier front end
Partial discharge；Multi-flow direction reinforced clarifier connects ultra-filtration membrane device, for the water outlet of Multi-flow direction reinforced clarifier to be imported into ultrafiltration
Film device, the concentrated water of ultrafiltration and daily backwash draining are all back to spiral-flow aeration pond, and ultra-filtration membrane device connects pH regulating reservoirs,
For the water outlet of ultra-filtration membrane device to be imported into pH regulating reservoirs, sour throwing device is used to acid being added in pH regulating reservoirs, so that pH
It is adjusted to 6.5-8.5；PH regulating reservoir bottom of pond portion sets delivery port, and the water outlet for will be flowed out from delivery port recycles；It is preferred that return
Used for ore deposit downhole coal mine washing etc..
Technological process concretely comprises the following steps：
(1) mine water initially enters Multi-stage spiral aeration tank and carries out abundant hydraulic mixing and aeration, make ferrous oxidising be
Ferric iron, and calcium hydroxide is added in spiral-flow aeration pond, calcium hydroxide is preferably added in rear two-stage spiral-flow aeration pond, generates hydrogen-oxygen
Change iron precipitation, magnesium hydrate precipitate and precipitation of calcium carbonate, and make that heavy metal also forms the hydroxide of the metal or carbonate sinks
Form sediment, and suspension is converted into bulky grain flco using ferric coagulation；
(2) water outlet in the spiral-flow aeration pond enters Multi-flow direction reinforced clarifier, and is carried out in Multi-flow direction reinforced clarifier
Rapid precipitation, most of iron and suspension, and partial organic substances are removed, a sludge part for Multi-flow direction reinforced clarifier is internally
It is back to the stirring flocculation zone of the Multi-flow direction reinforced clarifier front end, another part mud discharging；
(3) the Multi-flow direction reinforced clarifier water outlet enters ultra-filtration membrane device, removes remaining suspension, colloid form
Iron, bacterium and large-scale virus；The concentrated water of ultra-filtration membrane device and daily backwash draining are all back to the spiral-flow aeration pond；
(4) the ultra-filtration membrane device water outlet enters pH regulating reservoirs, and pH value is adjusted to 6.5-8.5 by acid adding；
(5) water outlet of pH regulating reservoirs is recycled, and is preferably back to the use such as ore deposit downhole coal mine washing.
Wherein, the Multi-stage spiral aeration tank is handled using series connection, preferably 6 grades, single spiral-flow aeration pond interior shape
For vertical cylinder, perforate is provided with the top of the pond per one-level spiral-flow aeration pond, mine water is by the perforate at the top of pond along pond
Wall tangential direction horizontal water inflow, the spiral shape cyclone mixing effect that axle center is vertical direction is caused using waterpower flowing；Bottom of pond side
Wall sets perforate, and for making water outlet, water pipe connects upwards after the perforate of bottom of pond side wall tangentially horizontally enters into connecting water pipe
The perforate being connected at the top of the pond in next stage spiral-flow aeration pond.It is preferred that each spiral-flow aeration pond pond bottom part down sets cone dirty
Bucket, the perforate that bottom of pond side wall is set are located at the top of conical sludge bucket；Conical sludge bucket is corresponding each for collecting
The spoil disposal of level spiral-flow aeration pond precipitation, for the spoil disposal to be all back into Multi-stage spiral aeration tank front end, with mine water
Water inlet mixing.It is preferred that the bottom of pond horizontal layout on the conical sludge bucket top has the gas distribution system for aeration, gas distribution
System is micro-pore aeration system and/or perforated pipe aerating regulation system.
Wherein, the Multi-flow direction reinforced clarifier includes coagulation area, stirring flocculation zone, sloping plate deposition district and sludge area；
The coagulation area sets the upstream of stirring flocculation zone, and is connected with stirring flocculation zone, and the small flco for forming coagulation area enters
Enter to stir flocculation zone；Sloping plate deposition district is arranged on the downstream of stirring flocculation zone, for making to enter in stirring flocculation zone formation big flocculating body
Enter sloping plate deposition district, sludge area is arranged on the lower section of sloping plate deposition district, and big flocculating body touches swash plate surface under gravity
Attachment aggregation is glided, the sludge area sunk to below sloping plate deposition district.
Wherein, Multi-stage spiral aeration tank total residence time was at -6 hours 10 minutes, and the single spiral-flow aeration pond residence time is 2
- 1.5 hours minutes, the air water volume ratio of aeration is 0.1：1 to 10：1, calcium hydroxide add the control of rear water pH value not less than
10, the Multi-flow direction reinforced clarifier residence time is in -2 hours 8 minutes, the sludge in the sludge area of the Multi-flow direction reinforced clarifier
The sludge reflux ratio that portion is back to the stirring flocculation zone of Multi-flow direction reinforced clarifier front end is 10%-90%.It is preferred that multistage rotation
Flow aeration tank total residence time preferably 1.5 hours, preferably six grades of spiral-flow aeration ponds, the single spiral-flow aeration pond residence time is preferred
15 minutes, the air water volume ratio of aeration was preferably 3：1, calcium hydroxide adds rear water pH value and is preferably controlled in 10.3, more flow directions
Strengthen preferably 15 minutes clarifier residence time, the sludge internal reflux in the sludge area of the Multi-flow direction reinforced clarifier to multithread
Sludge reflux ratio to the stirring flocculation zone for strengthening clarifier front end is preferably 50%.
Wherein, mine water initially enters Multi-stage spiral aeration tank and carries out abundant hydraulic mixing and aeration, Multi-stage spiral aeration
Pond is handled using series connection, and single spiral-flow aeration pond interior shape is vertical cylinder, and lower section is with conical sludge bucket.Per one-level
From the perforate at the top of pond along pool wall tangential direction horizontal water inflow, the spiral shape that axle center is vertical direction is caused to revolve using waterpower flowing
Mixing effect is flowed, after water outlet tangentially horizontally enters into connecting water pipe using bottom of pond side-wall hole, water pipe is connected up under
One-level spiral-flow aeration pond.Bottom of pond uses taper sludge bucket, and the spoil disposal in each monomer spiral-flow aeration pond is all back to multistage rotation
Aeration tank front end is flowed, is mixed with water inlet, spoil disposal refers to the sludge of each bottom of pond precipitation in spiral-flow aeration pond herein, all
Multi-stage spiral aeration tank front end is back to, is mixed with water inlet, such as the signal arrow in Fig. 1.Each pond sludge all flows back
To front end.Bottom of pond planar cloth on taper sludge bucket top is equipped with the gas distribution system of aeration, and micro-pore aeration, perforated pipe can be used to expose
A variety of gas distribution modes such as gas.Bubble is with the mine water that spiral shape declines to contacting, extending the air-water contact time；Mine simultaneously
The horizontal cyclone effect of water ensure that gas mixes with the uniform of water；Its stable eddy flow fluidised form in turn ensure that the stable speed of each position
Spend gradient so that in mine water existing suspended solid and oxidation formed iron hydroxide can stablize be formed bulky grain flco and
Flco will not break up destruction.The tolerance of aeration is tired out according to the peak and content of organics of water body iron content, sulfide content
Meter calculates so that iron and some areas sulfide that may be present more fully complete can aoxidize in water body, remove simultaneously
Partial organic substances.Due to forming the process of iron hydroxide, it is necessary to which additional hydroxide could shape by ferrous oxidising for ferric iron
Into Precipitation；And the high alkalinity of mine water can remove its temporary hardness and part carbonic acid, it is necessary to add hydroxide simultaneously
Saline and alkaline；Therefore calcium hydroxide is added in the entrance of the last two-stage of Multi-stage spiral aeration tank, can both made oxidized
Ferric iron precipitates and forms flco in time, keeps the free ferric ion content in water to drop to very low, so as to not influence residue
Ferrous iron continue to be substantially oxidized as ferric iron in rear two-stage spiral-flow aeration pond；Part temporary hardness can be removed simultaneously again
And carbonate alkalinity, the precipitation of calcium carbonate of generation can turn into good condensation nucleus, facilitate iron hydroxide quickly to form bulky grain
Flco.
As shown in Fig. 2 the water outlet in spiral-flow aeration pond enters Multi-flow direction reinforced clarifier, Multi-flow direction reinforced clarifier is by coagulation
Area, stirring flocculation zone, a few part compositions of sloping plate deposition district and sludge area.The upstream of coagulation area setting stirring flocculation zone, and with
Flocculation zone connection is stirred, enters stirring flocculation zone in the small flco that coagulation area is formed, big flocculating body, swash plate are formed in stirring flocculation zone
Settling zone is arranged on the downstream of stirring flocculation zone, and big flocculating body enters sloping plate deposition district, and big flocculating body touches under gravity
The aggregation of swash plate surface attachment is glided, the sludge area sunk to below sloping plate deposition district.Specially：Spiral-flow aeration pond water outlet first
Quickly stirred into coagulation area, control in higher blade outer rim linear velocity (1.5-3m/s), promote the suspension in water to consolidate
The sediments such as body, the iron hydroxide of generation and calcium carbonate are frequently contacted with each other, and are combined into small flco.Then enter and stir
Mix flocculation zone to be mixed slowly, control in suitable velocity gradient (20-60s-1) so that the small flco in water can phase mutual connection
The flco i.e. big flocculating body for forming bulky grain or medium grain is touched, is unlikely to smash flco again, when more flow directions strengthen clarification in operation
When device water outlet suspended solids content is more than 20mg/L, cause quick dirt stifled in order to avoid ultrafiltration water inlet suspended solids content is too high,
Cleaning is frequent, and 0.05mg/L-0.5mg/L micro flocculation aid can be added in the stirring flocculation zone of Multi-flow direction reinforced clarifier
(such as PAM), because the macromolecule flocculation aid of excess is attached to extremely difficult cleaning on milipore filter, flocculation aid is not added as far as possible,
It is never excessive to add.After forming big flocculating body, current enter sloping plate deposition district, and flco touches swash plate quickly under gravity
Surface attachment aggregation is glided, and lower section sludge area is sunk to, because flco is larger and is mixed with the sludge of partial reflux, suspended solid
Concentration is higher, except that can also form the crowded precipitation even effect of layering and precipitating in addition to the shallow layer precipitating of swash plate surface.Swash plate sinks
The water outlet of shallow lake area has just eliminated the suspended solid and sediment of the overwhelming majority, and the partial organic substances of suspended state.
Multi-flow direction reinforced clarifier water outlet enters ultra-filtration membrane device, i.e. ultra-filtration membrane device, removes remaining suspension, colloid
Iron, bacterium and the large-scale virus of form；The concentrated water of ultrafiltration and daily backwash draining are back to spiral-flow aeration pond；Ultrafiltration formats select
Immersion ultrafiltration or external pressure type ultra-filtration membrane post are selected,
Ultra-filtration membrane device water outlet enters pH regulating reservoirs, and pH is adjusted to 6.5-8.5 by acid adding；
PH regulating reservoirs effluent reuse uses in ore deposit downhole coal mine washing etc..
In order to which utility model is further described, the embodiment of use is as follows.Wherein embodiment is according to foregoing
What reaction principle was carried out.
Embodiment 1
Mine water initially enters Multi-stage spiral aeration tank and carries out abundant hydraulic mixing and aeration, and it is trivalent to make ferrous oxidising
Iron, and calcium hydroxide is added in rear two-stage spiral-flow aeration pond, generation ferric hydroxide precipitate, magnesium hydrate precipitate and calcium carbonate sink
Form sediment, and heavy metal is also formed the hydroxide or carbonate deposition of the metal, and will be suspended using ferric coagulation
Thing is converted into bulky grain flco；Multi-stage spiral aeration tank total residence time was at 10 minutes, and the single spiral-flow aeration pond residence time is 2
Minute, the gas-water ratio of aeration is 0.1：1, calcium hydroxide adds rear water body pH controls not less than 10.
The water outlet in spiral-flow aeration pond enters Multi-flow direction reinforced clarifier and carries out rapid precipitation, removes most of iron and suspension
Thing, and partial organic substances, the stirring flocculation zone of Multi-flow direction reinforced clarifier sludge internal reflux to its front end, another part row
Put.The Multi-flow direction reinforced clarifier residence time, sludge reflux ratio was 10% at 8 minutes.
Multi-flow direction reinforced clarifier water outlet enters ultra-filtration membrane device, removes remaining suspension, the iron of colloid form, bacterium
And large-scale virus；The concentrated water of ultrafiltration and daily backwash draining are back to spiral-flow aeration pond；
Ultra-filtration membrane device water outlet enters pH regulating reservoirs, and pH is adjusted to 6.5 by acid adding；
PH regulating reservoirs effluent reuse uses in ore deposit downhole coal mine washing etc..
| Water quality index | Raw water quality | Water quality after processing |
| pH | 7.96 | 6.5 |
| Basicity (CaCO3Meter) | 560.6mg/L | 77.3mg/L |
| Hard (the CaCO of calcium3Meter) | 470mg/L | 146mg/L |
| Hard (the CaCO of magnesium3Meter) | 1840mg/L | 1720mg/L |
| Total Fe | 87.5mg/L | 0.03mg/L |
| Mn | 5.6mg/L | 0.1mg/L |
Embodiment 2
Mine water initially enters Multi-stage spiral aeration tank and carries out abundant hydraulic mixing and aeration, and it is trivalent to make ferrous oxidising
Iron, and calcium hydroxide is added in rear two-stage spiral-flow aeration pond, generation ferric hydroxide precipitate, magnesium hydrate precipitate and calcium carbonate sink
Form sediment, and heavy metal is also formed the hydroxide or carbonate deposition of the metal, and will be suspended using ferric coagulation
Thing is converted into bulky grain flco；At 6 hours, the single spiral-flow aeration pond residence time existed Multi-stage spiral aeration tank total residence time
1.5 hours, the gas-water ratio of aeration was 10：1, calcium hydroxide adds rear water body pH controls not less than 10.
The water outlet in spiral-flow aeration pond enters Multi-flow direction reinforced clarifier and carries out rapid precipitation, removes most of iron and suspension
Thing, and partial organic substances, the stirring flocculation zone of Multi-flow direction reinforced clarifier sludge internal reflux to its front end, another part row
Put.The Multi-flow direction reinforced clarifier residence time, sludge reflux ratio was 90% at 2 hours.
Multi-flow direction reinforced clarifier water outlet enters ultra-filtration membrane device, removes remaining suspension, the iron of colloid form, bacterium
And large-scale virus；The concentrated water of ultrafiltration and daily backwash draining are back to spiral-flow aeration pond；
Ultra-filtration membrane device water outlet enters pH regulating reservoirs, and pH is adjusted to 8.5 by acid adding；
PH regulating reservoirs effluent reuse uses in ore deposit downhole coal mine washing etc..
| Water quality index | Raw water quality | Water quality after processing |
| pH | 8.99 | 8.5 |
| Basicity (CaCO3Meter) | 860mg/L | 197.3mg/L |
| Hard (the CaCO of calcium3Meter) | 293mg/L | 76mg/L |
| Hard (the CaCO of magnesium3Meter) | 771mg/L | 320mg/L |
| Total Fe | 41.1mg/L | 0.02mg/L |
| Mn | 5.3mg/L | 0.1mg/L |
Embodiment 3
Mine water initially enters Multi-stage spiral aeration tank and carries out abundant hydraulic mixing and aeration, and it is trivalent to make ferrous oxidising
Iron, and calcium hydroxide is added in rear two-stage spiral-flow aeration pond, generation ferric hydroxide precipitate, magnesium hydrate precipitate and calcium carbonate sink
Form sediment, and heavy metal is also formed the hydroxide or carbonate deposition of the metal, and will be suspended using ferric coagulation
Thing is converted into bulky grain flco；At 1.5 hours, the single spiral-flow aeration pond residence time existed Multi-stage spiral aeration tank total residence time
15 minutes, the gas-water ratio of aeration was 3：1, calcium hydroxide adds rear water body pH controls 10.3.
The water outlet in spiral-flow aeration pond enters Multi-flow direction reinforced clarifier and carries out rapid precipitation, removes most of iron and suspension
Thing, and partial organic substances, the stirring flocculation zone of Multi-flow direction reinforced clarifier sludge internal reflux to its front end, another part row
Put.The Multi-flow direction reinforced clarifier residence time, sludge reflux ratio was 50% at 15 minutes.
Multi-flow direction reinforced clarifier water outlet enters ultra-filtration membrane device, removes remaining suspension, the iron of colloid form, bacterium
And large-scale virus；The concentrated water of ultrafiltration and daily backwash draining are back to spiral-flow aeration pond；
Ultra-filtration membrane device water outlet enters pH regulating reservoirs, and pH is adjusted to 7.5 by acid adding；
PH regulating reservoirs effluent reuse uses in ore deposit downhole coal mine washing etc..
| Water quality index | Raw water quality | Water quality after processing |
| pH | 8.39 | 7.5 |
| Basicity (CaCO3Meter) | 653.7mg/L | 125mg/L |
| Hard (the CaCO of calcium3Meter) | 700.7mg/L | 191mg/L |
| Hard (the CaCO of magnesium3Meter) | 196.2mg/L | 120mg/L |
| Total Fe | 122mg/L | 0.03mg/L |
| Mn | 6mg/L | 0.1mg/L |
Claims (5)
1. a kind of high iron content high alkalinity mine water treatment system, it includes Multi-stage spiral aeration tank, Multi-flow direction reinforced clarifier, surpassed
Filter membrane device, pH regulating reservoirs, calcium hydroxide throwing device and sour throwing device；Multi-stage spiral aeration tank has hydraulic mixing dress
Put and aerator, hydraulic agitation device and aerator are used to mine water carrying out abundant hydraulic mixing and aeration；Hydroxide
Calcium throwing device is used to add calcium hydroxide in Multi-stage spiral aeration tank；Connection more flow directions in Multi-stage spiral aeration tank are strengthened clear
Clear device, the water outlet for making spiral-flow aeration pond enter Multi-flow direction reinforced clarifier and carry out rapid precipitation, Multi-flow direction reinforced clarifier
Stirring flocculation zone with front end, it is clear for a part of internal reflux of the sludge of Multi-flow direction reinforced clarifier to more flow directions to be strengthened
The stirring flocculation zone of clear device front end, another part discharge；Multi-flow direction reinforced clarifier connects ultra-filtration membrane device, for that will flow to more
The water outlet for strengthening clarifier imports ultra-filtration membrane device, and the concentrated water of ultrafiltration and daily backwash draining are all back to spiral-flow aeration
Pond, ultra-filtration membrane device connection pH regulating reservoirs, for the water outlet of ultra-filtration membrane device to be imported into pH regulating reservoirs, sour throwing device is used for
Acid is added in pH regulating reservoirs, so that pH is adjusted to 6.5-8.5；PH regulating reservoir bottom of pond portion sets delivery port, for will be from delivery port
The water outlet of outflow recycles.
2. processing system according to claim 1, it is characterised in that the Multi-stage spiral aeration tank is handled using series connection,
Single spiral-flow aeration pond interior shape is vertical cylinder, and perforate, mine are provided with the top of the pond per one-level spiral-flow aeration pond
Water, along pool wall tangential direction horizontal water inflow, the spiral that axle center is vertical direction is caused using waterpower flowing by the perforate at the top of pond
Shape cyclone mixing effect；Bottom of pond side wall sets perforate, for making water outlet tangentially be horizontally entered into from the perforate of bottom of pond side wall
After connecting water pipe, water pipe is connected up to the perforate at the top of the pond in next stage spiral-flow aeration pond.
3. processing system according to claim 1 or 2, it is characterised in that each spiral-flow aeration pond pond bottom part down is set
Conical sludge bucket, the perforate that bottom of pond side wall is set are located at the top of conical sludge bucket；Conical sludge bucket is used for collection pair
The spoil disposal for the every one-level spiral-flow aeration pond precipitation answered, for the spoil disposal to be all back into Multi-stage spiral aeration tank front end,
Mixed with the water inlet of mine water.
4. processing system according to claim 3, it is characterised in that the bottom of pond plane on the conical sludge bucket top
The gas distribution system for aeration is disposed with, gas distribution system is micro-pore aeration system and/or perforated pipe aerating regulation system.
5. processing system according to claim 1 or 2, it is characterised in that the Multi-flow direction reinforced clarifier includes coagulation
Area, stirring flocculation zone, sloping plate deposition district and sludge area；The coagulation area sets the upstream of stirring flocculation zone, and is wadded a quilt with cotton with stirring
Coagulation zone connects, for making the small flco that coagulation area is formed enter stirring flocculation zone；Sloping plate deposition district is arranged on stirring flocculation zone
Downstream, for making to enter sloping plate deposition district in stirring flocculation zone formation big flocculating body, sludge area is arranged on the lower section of sloping plate deposition district,
Big flocculating body touches the aggregation of swash plate surface attachment and glided under gravity, the sludge area sunk to below sloping plate deposition district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720219493.7U CN206814532U (en) | 2017-03-07 | 2017-03-07 | A kind of high iron content high alkalinity mine water treatment system |
Applications Claiming Priority (1)
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| CN109455889A (en) * | 2019-01-10 | 2019-03-12 | 天津凯英科技发展股份有限公司 | High-speed rail height consolidates sludge digestion dehydration liquid denitrification of autotrophic organism combination unit and regulation method |
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| CN109455889A (en) * | 2019-01-10 | 2019-03-12 | 天津凯英科技发展股份有限公司 | High-speed rail height consolidates sludge digestion dehydration liquid denitrification of autotrophic organism combination unit and regulation method |
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