CN205773802U - A kind of heavy metal pollution place soil chemical leaching liquid Circulation reusing and treating device - Google Patents
A kind of heavy metal pollution place soil chemical leaching liquid Circulation reusing and treating device Download PDFInfo
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- CN205773802U CN205773802U CN201620698356.1U CN201620698356U CN205773802U CN 205773802 U CN205773802 U CN 205773802U CN 201620698356 U CN201620698356 U CN 201620698356U CN 205773802 U CN205773802 U CN 205773802U
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- heavy metal
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- leaching liquid
- metal pollution
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Abstract
The utility model discloses the chemical leaching liquid Circulation reusing and treating device of a kind of heavy metal pollution place soil treatment, it includes the eluate collecting pit (1) being sequentially communicated, setting pot (2), backflow regulating reservoir (3), front neutralization reaction tank (4), electricity flocculation apparatus (5), aeration oxidation pool (6), kieselguhr Circulation clarifying pool (7), neutralizes reaction tank (8), leacheate reuse pool (9) afterwards.This device combines with electricity flocculation apparatus and aeration oxidation pool, kieselguhr Circulation clarifying pool, flco can be made to form stable, a fine and close suspended sludge filter course, the fine and close superposed layer that eluate oneself in system is formed can be purified after filtering further, heavy-metal ion removal efficiency is high, and eluate after treatment can reuse.
Description
Technical field
This utility model belongs to soil remediation field, heavy metal pollution place, refers to a kind of heavy metal pollution place further
Soil chemistry leacheate Circulation reusing and treating device.
Background technology
Heavy metal pollution place soil chemical leaching liquid typically contains Cd, Pb, Zn, As and Hg.Develop application at present
Chemical leaching liquid treatment technology mainly has chemical method, physical-chemical process, biological treatment etc..
(1) chemical method
The principle of chemical precipitation method is to make in leacheate the heavy metal ion in dissolved state be transformed into by chemical reaction
For water-fast heavy metal compound, then by filtering and separation makes precipitate remove from aqueous solution, including neutralization precipitation
Method, sulphide precipitation, ferrite coprecipitation method.Owing to being affected by precipitant and environmental condition, sedimentation method effluent characteristics can only
Basically reach environmental requirement, it is impossible to reach the requirement of circulating and recovering.
(2) physical-chemical process
Ion exchange is to carry out in ion exchanger, and the method completes by ion-exchanger, in exchanger
Require to load different types of ion-exchanger.When solution containing heavy metal ion is by exchanger, the ion on exchanger
Swap with the heavy metal ion in water, reach to remove the purpose of heavy metal ion in leacheate.This method is by exchanger
The impact of kind, yield and cost.
Membrane separation technique is to utilize the semipermeable membrane of a kind of characteristic, under the effect of the pressure, is not changing chemistry shape in solution
On the basis of state, the method carrying out solvent and solute separating or concentrating, including electrodialysis and diaphragm electrolysis.The most all can
Run into the problems such as electrode polarization, fouling and corrosion.
(3) biological treatment
Biological adsorption is for making heavy metal ion be managed by the overview of microorganism adsorption through series of biochemical reactions
Solving, these effects include complexation, ion exchange, absorption etc..These microorganisms mechanism of separation of heavy metal ions from solution has:
The upper enrichment of born of the same parents, precipitation；The absorption of cell surface or complexation；Intracellular is enriched with.Wherein cell surface absorption or complexation are to micro-life anyway
Thing all exists, and a large amount of enrichments outside intracellular and born of the same parents up require that microorganism is active.Biological treatment is a kind of traditional water
Processing mode, but its be primarily directed to the biodegradability such as sanitary sewage can be good, water quality toxicity is little, the pollution that water quality stability is good
Water.Biological treatment has the advantages such as low, the high treating effect of operating cost, but biological treatment there is also floor space simultaneously
The shortcomings such as greatly, automaticity is low, the more weak sludge quantity of anti impulsion load ability is big.
Utility model content
For the deficiencies in the prior art, this utility model provides with electricity flocculation apparatus and aeration oxidation pool, kieselguhr circulation
A kind of heavy metal pollution place soil chemical leaching liquid circulating and recovering treatment technology that depositing reservoir combines, this technology has process
Effective, the advantage such as non-secondary pollution.
In order to solve above-mentioned technical problem, technical solution adopted in the utility model is:
A kind of heavy metal pollution place soil chemical leaching liquid Circulation reusing and treating device, including eluate collecting pit,
Setting pot, backflow regulating reservoir, front neutralization reaction tank, electricity flocculation apparatus, aerating oxidation it has been sequentially communicated after eluate collecting pit
Pond, kieselguhr Circulation clarifying pool, neutralize reaction tank, leacheate reuse pool afterwards.
Preferred version, described eluate collecting pit import is provided with feed tube.
Preferred version, for cone bucket bottom described setting pot, is provided with sediment outflow pipe bottom cone bucket, is provided with tiltedly in the middle part of setting pot
Pipe holder, is provided with inclined tube at inclined-tube support.
Preferred version, is provided with antipriming pipe bottom described backflow regulating reservoir, bottom pool wall penetrates and is provided with backflow water pipe.
Preferred version, described front neutralization is provided with the first air stirring pipe bottom reaction tank, in described front neutralization reaction tank
Wall limit is provided with pH meter, is provided with lime cream and adds tank by described front neutralization reaction tank.
Preferred version, described electricity flocculation apparatus is up provided with pole plate, on polar plate bracket away from 450-500mm space from the bottom of pond
Face is provided with polylith pole plate.
Preferred version, is provided with the mixed aerator of rotation at the bottom of described aeration oxidation pool pond, inwall limit is provided with liquidometer, sets by pond
Being equipped with lifting water pump, described aeration oxidation pool connects with backflow regulating reservoir with backflow water pipe by promoting water pump.
Preferred version, described kieselguhr Circulation clarifying pool is up disposed with water inlet pipe, nozzle, trunnion and from bottom
One reative cell, the first reative cell side is provided with the second reative cell, and the second reative cell top is provided with inclined tube assembly, inclined tube assembly
Top is provided with annular collecting vat；Being provided with discharge pipeline at the bottom of described kieselguhr Circulation clarifying pool pond, top, pond is provided with trunnion and carries
Rise device.
Preferred version, described rear neutralization is provided with the second air stirring pipe bottom reaction tank, the other chemicals dosing plant arranged in pond.
Preferred version, is provided with immersible pump at the bottom of described leacheate reuse pool pond, and pool wall top is provided with circulating and recovering pipe.
Below in conjunction with Fig. 3, technological process of the present utility model is illustrated:
(1) soil chemical leaching liquid in heavy metal pollution place initially enters eluate collecting pit；Eluate is collected,
Subsequently into setting pot desanding；Enter back into backflow regulating reservoir, the part promoting water pump being arranged on aeration oxidation pool side go out
Flow is back to regulating reservoir front end, again along journey distribution water inlet, to improve regulating effect；Backflow regulating reservoir neutralizes reaction before entering
Pond, adds tank and adds alkaline solution lime cream by being arranged on the other lime cream in pond eluate is carried out pH adjustment, make pH keep
Between 7.5～8.5.After pH adjusts, eluate enters electricity flocculation apparatus, by pH regulator system, pH is carried out accurate adjustment at this, makes
PH is maintained between 8.5～10.0, preferably there is electrolytic flocculation, electrofloatation and electrolysis oxidation-reduction reaction；Electricity wadding
Solidifying equipment water outlet enters aeration oxidation pool and carries out aeration agitation and oxidation reaction；Aeration tank water outlet enters kieselguhr circular clarifying
Pond, and on water inlet pipe, add tripolite solution in the lump, spray into trunnion through nozzle with higher flow velocity.Nozzle flow velocity is up to 7
～more than 9m/s, negative pressuren zone occurs around nozzle, makes the body refuse water of about 3～5 times of former water yields of horn mouth adnexa inhale in company with former water
Entering trunnion, larynx velocity in pipes, with 2～3m/s, flows to the first reative cell after fast reaction, current through the first reative cell and
During second reative cell, the cross-section of river gradually expands, and upflow velocity is gradually reduced, for the same water of active sludge of different-grain diameter
In tiny flocculation body contact with each other and provide good condition.The water flowed out from the second reative cell, a part is upwardly into inclined tube
Assembly (separation chamber).Owing to the upflow velocity of separation chamber is little, body refuse sinks rapidly, and the body refuse of sinking flows out with the second reative cell
Remainder water be back to again around nozzle, be the most repeatedly circulated；In after kieselguhr Circulation clarifying pool water outlet entrance
And reaction tank, add dilution heat of sulfuric acid by the chemicals dosing plant being arranged on pond other, make pH pull back between 6～9；Rear neutralization is reacted
Pond water outlet enters leacheate reuse tank, through immersible pump by process up to standard after leacheate pressurization reuse.
(2) to be carried out danger by the unit having qualification useless for the mud containing heavy metal discharged bottom kieselguhr Circulation clarifying pool
Process or resource reclaim.
Compared with prior art, the beneficial effects of the utility model are:
Device described in the utility model combines with electricity flocculation apparatus and aeration oxidation pool, kieselguhr Circulation clarifying pool, energy
Make the suspended sludge filter course that flco formation one is stable, fine and close, fine and close the hanging that eluate oneself in system is formed
Mud Layer can be purified after filtering further, and heavy-metal ion removal efficiency is high, and eluate after treatment can reuse.
Accompanying drawing explanation
Fig. 1 is the planar structure signal of a heavy metal species contaminated soil of site chemical leaching liquid Circulation reusing and treating device
Figure；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
Fig. 3 is the process chart of a heavy metal species contaminated soil of site chemical leaching liquid Circulation reusing and treating device；
In the drawings:
1-eluate collecting pit, 1-1-feed tube
2-setting pot, 2-1-sediment outflow pipe, 2-2-inclined-tube support, 2-3-inclined tube
3-refluxes regulating reservoir, 3-1-antipriming pipe, and 3-2-refluxes water pipe
Neutralizing reaction tank, 4-1-the first air stirring pipe before 4-, 4-2-pH counts, and 4-3-lime cream adds tank
5-electricity flocculation apparatus, 5-1-polar plate bracket, 5-2-pole plate, 5-3-external power source, 5-4-pH regulates system
6-aeration oxidation pool, the mixed aerator of 6-1-rotation, 6-2-liquidometer, 6-3-promotes water pump
7-kieselguhr Circulation clarifying pool, 7-1-water inlet pipe, 7-2-nozzle, 7-3-trunnion, 7-4-the first reative cell, 7-5-
Two reative cells, 7-6-inclined tube assembly, 7-7-annular collecting vat, 7-8-discharge pipeline, 7-9-trunnion lifter
Reaction tank, 8-1-the second air stirring pipe, 8-2-chemicals dosing plant is neutralized after 8-
9-leacheate reuse pool, 9-1-immersible pump, 9-2-circulating and recovering pipe.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is described further.
A heavy metal species contaminated soil of site chemical leaching liquid Circulation reusing and treating device as shown in Figure 1 and Figure 2, including depending on
The eluate collecting pit 1 of secondary connection, setting pot 2, backflow regulating reservoir 3, front neutralization reaction tank 4, electricity flocculation apparatus 5, aerating oxidation
Pond 6, kieselguhr Circulation clarifying pool 7, rear neutralization reaction tank 8, leacheate reuse pool 9.
The import of described eluate collecting pit 1 is provided with feed tube 1-1.
The function of eluate collecting pit: collect eluate.
For cone bucket bottom described setting pot 2, it is provided with sediment outflow pipe 2-1 bottom cone bucket, is provided with inclined tube in the middle part of setting pot and props up
Frame 2-2, inclined-tube support ∠ 60 × 8mm angle steel makes, and is provided with inclined tube 2-3 at inclined-tube support, and inclined tube material is Propylene polymerization,
Specification is diameter 80mm, a size of 1000 × 500 × 867 (plagioclase) mm, sheet thickness 0.8mm.
Being provided with antipriming pipe 3-1 bottom described backflow regulating reservoir 3, antipriming pipe orifice diameter is 10-15mm, and pitch-row is
300mm, eyelet is staggered straight at 45 ° downwards.Bottom pool wall penetrates and is provided with backflow water pipe 3-2, refluxes water pipe and sets
Put the lifting water pump 6-3 outlet pipe on aeration oxidation pool 6 side to connect.
The function of backflow regulating reservoir: equal and water quality, regulating pondage.
Neutralizing before described bottom reaction tank 4 and be provided with the first air stirring pipe 4-1, the first air stirring pipe is a diameter of
DN32mm, bore dia is 5mm, and pitch-row is 200mm, and eyelet is staggered straight at 45 ° downwards.Inwall limit is provided with pH meter 4-
2, it is provided with lime cream by pond and adds tank 4-3, add alkaline solution lime cream and eluate pH is adjusted, make pH be maintained at
Between 7.5～8.5.
The function of front neutralization reaction tank: be adjusted pH, to meet the water quality requirement of subsequent technique electricity flocculation apparatus.
Described electricity flocculation apparatus 5 is up provided with pole plate 5-1, polar plate bracket [80 × 8mm away from 450mm space from the bottom of pond
Channel-section steel make, polar plate bracket is provided above with pole plate 5-2, and pole plate specification be length × width x thickness=800 × 500 × 10mm, use
Iron plate makes, and pole plate and external power source 5-3 use the negative of unipolar fashion connection, i.e. odd number polar plate cathode wire and external power source
Pole connects, and even number pole plate positive wire is connected with external power source positive pole.Other pH regulator system 5-4 arranged in pond, including soda acid
Tank and compounding system, frequency conversion dosing pump and pH meter, pH is fine-tuning between 8.5～10.0.
The function of electricity flocculation apparatus: electrolytic flocculation, electrofloatation and electrolysis oxidation-reduction reaction occur, eluate is entered
Row degree of depth heavy-metal ion removal processes.
Being provided with the mixed aerator 6-1 of rotation at the bottom of described aeration oxidation pool 6 pond, the production of inwall limit has liquidometer 6-2, and pond is other to be arranged
There is lifting water pump 6-3.
The function of aeration oxidation pool: carry out aeration agitation and Oxidation, ferrous ion is changed into ferric ion.
Described kieselguhr Circulation clarifying pool 7 is up disposed with water inlet pipe 7-1 and (and adds in the lump on water inlet pipe from bottom
Enter tripolite solution), nozzle 7-2, trunnion 7-3, the first reative cell 7-4 side be provided with the second reative cell 7-5, the second reative cell
Top is provided with inclined tube assembly 7-6, and inclined tube assembly top is provided with annular collecting vat 7-7, is provided with discharge pipeline 7-8, pond at the bottom of pond
Top is provided with trunnion lifter 7-9.
The function of kieselguhr Circulation clarifying pool: heavy-metal ion removal is played the last effect of checking on.
Neutralizing after described bottom reaction tank 8 and be provided with the second air stirring pipe 8-1, the second air stirring pipe pipe is a diameter of
DN25mm, bore dia is 4mm, and Ullage is 150mm, and eyelet is staggered straight at 45 ° downwards.The other chemicals dosing plant arranged in pond
8-2 adds dilution heat of sulfuric acid in pond, makes pH pull back between 6～9.
The function of rear neutralization reaction tank: readjustment pH value, to meet reuse requirement up to standard.
Being provided with immersible pump 9-1 at the bottom of described leacheate reuse pool 9 pond, pool wall top is provided with circulating and recovering pipe 9-2.
The function of leacheate reuse pool: store and transfer the leacheate after process.
Fig. 3 is shown in technological process of the present utility model, elaborates in specific embodiment description.
Claims (10)
1. a heavy metal pollution place soil chemical leaching liquid Circulation reusing and treating device, including eluate collecting pit (1), its
Feature is, has been sequentially communicated setting pot (2), backflow regulating reservoir (3), front neutralization reaction tank after eluate collecting pit (1)
(4), electricity flocculation apparatus (5), aeration oxidation pool (6), kieselguhr Circulation clarifying pool (7), neutralize reaction tank (8) afterwards, leacheate returns
Millpond (9).
The most according to claim 1, heavy metal pollution place soil chemical leaching liquid Circulation reusing and treating device, is characterized in that:
The import of described eluate collecting pit (1) is provided with feed tube (1-1).
The most according to claim 1, heavy metal pollution place soil chemical leaching liquid Circulation reusing and treating device, is characterized in that:
Described setting pot (2) bottom is cone bucket, is provided with sediment outflow pipe (2-1), is provided with inclined-tube support (2-in the middle part of setting pot bottom cone bucket
2) inclined tube (2-3), it is provided with at inclined-tube support.
The most according to claim 1, heavy metal pollution place soil chemical leaching liquid Circulation reusing and treating device, is characterized in that:
Described backflow regulating reservoir (3) bottom is provided with antipriming pipe (3-1), and bottom pool wall penetrates and is provided with backflow water pipe (3-2).
The most according to claim 1, heavy metal pollution place soil chemical leaching liquid Circulation reusing and treating device, is characterized in that:
Neutralizing reaction tank (4) bottom before described and be provided with the first air stirring pipe (4-1), described front reaction tank (4) the inwall limit that neutralizes sets
Being equipped with pH meter (4-2), described front neutralization reaction tank (4) side is provided with lime cream and adds tank (4-3).
The most according to claim 1, heavy metal pollution place soil chemical leaching liquid Circulation reusing and treating device, is characterized in that:
Described electricity flocculation apparatus (5) is up provided with pole plate (5-1) away from 450-500mm space from the bottom of pond, and polar plate bracket is provided above with
Polylith pole plate (5-2).
Heavy metal pollution place soil chemical leaching liquid Circulation reusing and treating device, its feature the most according to claim 1
It is: being provided with the mixed aerator (6-1) of rotation at the bottom of described aeration oxidation pool (6) pond, inwall limit is provided with liquidometer (6-2), sets by pond
Being equipped with lifting water pump (6-3), described aeration oxidation pool (6) is by promoting water pump (6-3) and backflow water pipe (3-2) and backflow regulation
Pond (3) connects.
The most according to claim 1, heavy metal pollution place soil chemical leaching liquid Circulation reusing and treating device, is characterized in that:
Described kieselguhr Circulation clarifying pool (7) be up disposed with from bottom water inlet pipe (7-1), nozzle (7-2), trunnion (7-3) and
First reative cell (7-4), the first reative cell (7-4) side is provided with the second reative cell (7-5), and the second reative cell top is provided with
Inclined tube assembly (7-6), inclined tube assembly top is provided with annular collecting vat (7-7)；Set at the bottom of described kieselguhr Circulation clarifying pool (7) pond
Being equipped with discharge pipeline (7-8), top, pond is provided with trunnion lifter (7-9).
The most according to claim 1, heavy metal pollution place soil chemical leaching liquid Circulation reusing and treating device, is characterized in that:
Neutralize reaction tank (8) bottom after described and be provided with the second air stirring pipe (8-1), the other chemicals dosing plant (8-2) arranged in pond.
10. according to one of claim 1-9 described heavy metal pollution place soil chemical leaching liquid Circulation reusing and treating device, its
Feature is: being provided with immersible pump (9-1) at the bottom of described leacheate reuse pool (9) pond, pool wall top is provided with circulating and recovering pipe (9-
2)。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620698356.1U CN205773802U (en) | 2016-07-05 | 2016-07-05 | A kind of heavy metal pollution place soil chemical leaching liquid Circulation reusing and treating device |
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| CN201620698356.1U CN205773802U (en) | 2016-07-05 | 2016-07-05 | A kind of heavy metal pollution place soil chemical leaching liquid Circulation reusing and treating device |
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| CN205773802U true CN205773802U (en) | 2016-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111574005A (en) * | 2020-05-27 | 2020-08-25 | 湖北华德莱节能减排科技有限公司 | Salinization sludge treatment method |
-
2016
- 2016-07-05 CN CN201620698356.1U patent/CN205773802U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111574005A (en) * | 2020-05-27 | 2020-08-25 | 湖北华德莱节能减排科技有限公司 | Salinization sludge treatment method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 410000 Hunan province Changsha hi tech Development Zone, Lu Tin Road No. 8 Building 2030 unit 5 Oaks Patentee after: Hunan Aibulu environmental Polytron Technologies Inc Address before: Wanjiali road 410000 Hunan City No. 36 Changsha Xiyingmen van city International Building, 20 floor Patentee before: HUNAN AIRBLUER ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. |
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| CP03 | Change of name, title or address |