CN109092870A - A kind of pollution of chromium building waste immersion systems and its embathe method - Google Patents
A kind of pollution of chromium building waste immersion systems and its embathe method Download PDFInfo
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- CN109092870A CN109092870A CN201811308428.7A CN201811308428A CN109092870A CN 109092870 A CN109092870 A CN 109092870A CN 201811308428 A CN201811308428 A CN 201811308428A CN 109092870 A CN109092870 A CN 109092870A
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- pond
- building waste
- storage tank
- discharge port
- drainage
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- 239000002699 waste material Substances 0.000 title claims abstract description 84
- 239000011651 chromium Substances 0.000 title claims abstract description 43
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 229910052804 chromium Inorganic materials 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000007654 immersion Methods 0.000 title claims abstract description 27
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000003814 drug Substances 0.000 claims abstract description 61
- 238000003860 storage Methods 0.000 claims abstract description 52
- 239000004744 fabric Substances 0.000 claims abstract description 35
- 239000012530 fluid Substances 0.000 claims abstract description 35
- 239000003513 alkali Substances 0.000 claims abstract description 26
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 19
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 13
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 12
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 12
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 9
- 238000012216 screening Methods 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 239000010865 sewage Substances 0.000 claims description 5
- 238000007873 sieving Methods 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 10
- 238000002386 leaching Methods 0.000 description 9
- 238000006722 reduction reaction Methods 0.000 description 7
- 238000010828 elution Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 150000001844 chromium Chemical class 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/58—Construction or demolition [C&D] waste
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of pollution of chromium building waste immersion systems and its embathe method, the immersion systems include sulfuric acid storage tank, alkali liquor storage tank, medicament agitator tank, drainage pond, pump pond, section be rectangle embathe pond body and cloth pencil road, the side of sulfuric acid storage tank is provided with sour discharge port, the other side of sulfuric acid storage tank is provided with discharge port, and the discharge port of sulfuric acid storage tank is connect by pipeline with the first charging aperture of medicament agitator tank；The second charging aperture and water inlet for adding ferrous sulfate are additionally provided at the top of medicament agitator tank；The side in drainage pond, which is provided with, embathes pond body；The side long side for embathing pond body is provided with cloth pencil road；The treatment fluid for having embathed rubbish is embathed the discharge port of pond body and flows back to drainage pond, and is set the waste solution channel discharge in drainage bottom of pond portion.Process cycle is short, process is complete, embathes that process is easy to operate, and repairing effect is good.Embathing pond body has the function of antiseepage, and liquid preparation forms fluid-tight to building waste during embathing, and avoids fugitive dust.
Description
Technical field
The present invention relates to building waste processing technology field, especially a kind of pollution of chromium building waste immersion systems and its leaching
Washing method.
Background technique
Pollution of chromium Site Type mainly includes chromium slag storage yard, chromium salt factory leaves factory site and chromic salts product downstream user enterprise loses
Factory site is stayed, during the down-stream enterprises such as chromium salt factory and plating, tanning move with industrial upgrading, the building of same court is just
Ground is removed, and forms tens of thousands of side's pollutions of chromium containing types building wastes such as concrete, bricks.In the production process of chromium salt factory decades
In, genuine building and structures, especially original production workshop receive serious pollution, part building waste hexavalent chromium concentration
Reach hundreds of mg/kg, Cr VI leaching concentration reaches tens of mg/l, much higher than the limit that general industrial solid waste enters landfill yard
Value, it is necessary to could security landfill by processing.
Chromium salt factory is always the difficult point of pollution of chromium reparation by the building waste of pollution of chromium, and pollution of chromium building waste is repaired at present
Multiple thinking is derived from the reduction stabilizing surface treatment and chromic slag wet method detoxifcation technology of chromium-polluted soil.It was once taken in previous reparation
Elution technique and reinforcing dump leaching recovery technique.
Elution technique is to be transported to elution region after sieving construction waste crushing, by giant spray clear water or
Medicament elutes pollution of chromium building waste, and leacheate collection processing, use device and material mainly include high-pressure injection device, liquid
Collection device etc..Existing main problem is: elution technique medicament or clear water residence time are short, for poor permeability or contaminated
Reparation is not able to satisfy for the pollution of chromium building waste that time is long, pollution level is high generally to require.
Strengthen heap Leaching and refer to that building waste is stacked into heap soaking pit, reduction is then added into building waste heap body
Agent and organic fertilizer and/or glucose etc. carry out reduction reaction, and the external side of heap is equipped with biological overlay film, and then acquisition is built
Building refuse sample is detected, and reduction reaction and detection is successively carried out again if hexavalent chromium concentration is below standard, finally by heap soaking pit
In liquid discharge, use device and material mainly include heap soaking pit, biological overlay film, spray piping etc..Strengthen heap Leaching
(CN107745001 A) generally can achieve reparation target, but high concentration building waste long processing period, crushing and screening are wanted
Ask high, treatment process need to repeatedly supplement medicament causes process cumbersome, while needing constantly to extend dump leaching according to repairing effect
Time, the technology the problem is that: rehabilitation cost is uncontrollable, and the recovery project period is long, far from meeting current site remediation
Requirement of the market to the duration.
At this stage, all there is ineffective, process is tedious, processing week for pollution of chromium place building waste processing technique scheme
The disadvantages of phase is long, and device used in garbage processing procedure and material do not seek unity of standard and can not form holonomic system
System, equipment occupation space is big, and long construction period, there are security risks.
Summary of the invention
The object of the present invention is to provide a kind of pollution of chromium building waste immersion systems and its method is embathed, pollution is solved and build
Building refuse handles the technical problems such as the time is long, treatment process is cumbersome, processing system is not perfect, recovery technique is ineffective.
To achieve the above object, the present invention adopts the following technical scheme: a kind of pollution of chromium building waste immersion systems, the leaching
The system of washing include sulfuric acid storage tank, alkali liquor storage tank, medicament agitator tank, drainage pond, pump pond, section be rectangle embathe pond body and cloth medicine
Pipeline, the side of the sulfuric acid storage tank are provided with sour discharge port, and the other side of sulfuric acid storage tank is provided with discharge port, sulfuric acid storage tank
Discharge port is connect by pipeline with the first charging aperture of medicament agitator tank；
The second charging aperture and water inlet for adding ferrous sulfate are additionally provided at the top of medicament agitator tank；
The side of alkali liquor storage tank is provided with alkali discharge port, and the other side of alkali liquor storage tank is provided with discharge port, the discharging of alkali liquor storage tank
Mouth is connect by pipeline with cloth pencil road, is additionally provided with valve between the discharge port and cloth pencil road of alkali liquor storage tank；
The side in the drainage pond, which is provided with, embathes pond body；The side long side for embathing pond body is provided with cloth pencil road；
The treatment fluid modulated in medicament agitator tank, the discharge port being set in medicament stirring pot bottom are sent into storage by pipeline
The feeding inlet of blowoff basin；The discharge port in the drainage pond is connect by pipeline with cloth pencil road；
The treatment fluid for having embathed rubbish is embathed the discharge port of pond body and flows back to drainage pond, and is set in drainage bottom of pond portion
Waste solution channel discharge.
Further, the height at least cofferdam of 0.6m is provided on the outside of sulfuric acid storage tank, medicament agitator tank and alkali liquor storage tank.
Further, pond body is embathed having a size of 25 × 9 × 2.25m, pool wall thickness 0.4m.
Further, the bottom of pond for embathing pond body is obliquely installed, and the bottom of pond top surface far from drainage pond side is higher than close to storage row
The bottom of pond top surface of pond side.
Further, the length in cloth pencil road is adapted with the long side length for embathing pond body.
Further, at least four are provided on cloth pencil road into medicine valve.
Further, the side in drainage pond is arranged in, close to the position for embathing pond body in pump pond；It pumps between pond and drainage pond
It is connected by pipeline.
Further, it is provided at the top of pump pond rain-proof shed.
Further, the capacity of sulfuric acid storage tank is 8-12m3；The material of sulfuric acid storage tank is PVC.
Further, the capacity of medicament agitator tank is 8-12m3；The material of medicament agitator tank is steel lining plastic.
Another aspect of the present invention provides the method for embathing of above-mentioned pollution of chromium building waste immersion systems, and specific steps are such as
Under:
Step 1, construction waste crushing screening, the primitive architecture rubbish of several centimeters formed when place is removed to several tens cm
Particle is transported to workshop, is crushed to 2-5cm；
Step 2, the soil that screening removal is mingled in primitive architecture rubbish；
Building waste after sieving is transported to and embathes in pond body and uniformly stack by step 3, stacking height 1.2m；
Step 4 is prepared treatment fluid and is embathed；
Ferrous sulfate and the sulfuric acid mixed preparing in medicament agitator tank obtain embathing with treatment fluid, are set at medicament agitator tank bottom
The discharge port in portion by pipeline be sent into drainage pond feeding inlet, open cloth pencil road on into medicine valve, when treatment fluid is higher than
After building waste heap body 0.5-0.8m, stop embathing 12 hours into treatment fluid；
The discharge port that the treatment fluid for having embathed rubbish is embathed pond body is flowed into drainage pond by step 5；
Step 6 detects treatment fluid in drainage pond；If reaching the standard that can be continued to use, medicament is recycled, it is no
The waste solution channel being then set in drainage bottom of pond portion is discharged into sewage treatment facility or other designated positions；
Step 7, lye neutralize, and due to embathing treatment fluid in acidity, to enable building waste pH value to reach repairing standard, beat
Lye is added to pond body is embathed by cloth pencil road in the valve for opening alkali liquor storage tank discharge outlet, and lye liquid level needs are higher by building
Junk-heap body 0.5-0.8m, in lye and when it is 4 hours a length of；
Step 8 empties the lye for having neutralized building waste residual acid；
Step 9, self-test are checked and accepted, and will be transported by embathing the building waste of processing from embathing in pond body with forklift, are deposited in cleaning
Working area and the sample inspection that takes that treated；
Step 10, testing result cannot reach reparation target, then send back to and embathed in pond body again, and repeat the above steps four-steps
Nine.
Further, it embathes in step 4 and is mixed with treatment fluid by ferrous sulfate and sulfuric acid, ferrous sulfate is relative to building
The quality of building refuse is added than 5-10%, and 28% sulfuric acid phase, which adds the quality of building waste, compares 1%-2%.
The beneficial effects of the present invention are embodied in:
1, a kind of pollution of chromium building waste immersion systems provided by the invention and its method is embathed, immersion systems itself design conjunction
Reason, specification, design meet national contaminated site and repair industry relevant criterion.Technical solution is complete and can efficiently complete to build
Rubbish medicament mixes, embathes reaction, neutralizes the overall process for adjusting, treatment fluid detection, being discharged, while realizing that medicament recycles, in real time
The function of monitoring and regulation.
2, the present invention embathes method and the processing partial size of building waste is increased to 2-5cm from 2cm or less, reduces broken
The load of screening plant shortens the pre-treatment time.
3, method provided by the invention of embathing is compared with elution technique, when embathing contact of the liquid medicine with building waste
Between it is long, Cr VI dissolution and ferrous salt reduction it is more abundant.Building waste is sent into after immersion systems, and process operation letter is embathed
Just, building waste is stopped for 24 hours in pond embathing, and to reach reparation target, can be appropriately extended and be embathed the time to 2-4 days, repair effect
Fruit is good, the reparation of the pollution of chromium building waste suitable for a variety of pollution of chromium places.There is the preferable time compared with heap Leaching
Controllability.
4, space is saved, the processing time is saved.Drainage pond assumes responsibility for different functions in batch-type treatment process.
Treatment fluid can be sent into drainage pond through pipeline when preparing and temporarily store；Treatment fluid is completed a batch building waste and is embathed
Afterwards, it is flowed back in drainage pond naturally along the bottom of pond gradient.The property of the treatment fluid after reaction is embathed in measurement, if reaching can continue to make
Standard then recycles treatment fluid, be otherwise set draining bottom of pond portion waste solution channel be discharged into sewage treatment facility or
Other designated positions.Process flow is complete, reasonable, economical and practical.
5, embathing pond body has the function of antiseepage, and liquid preparation forms fluid-tight to building waste during embathing, and avoids fugitive dust,
It is possible to prevente effectively from secondary pollution, engineering exploitativeness more preferably, has and is preferably applied clinically and popularized prospect.
Other features and advantages of the present invention will be illustrated in the following description, and partly becomes from specification
It is clear that understand through the implementation of the invention.The main object of the present invention and further advantage can be by specifications, power
Specifically noted scheme is achieved and obtained in sharp claim.
Detailed description of the invention
The present invention will be further described in detail with reference to the accompanying drawing.
Fig. 1 is the top view of embodiment 1；
Fig. 2 is the top view of embodiment 2
Fig. 3 is the top view of embodiment 3；
Fig. 4 is the left view of embodiment 3；
Fig. 5 is the main view of embodiment 3.
Appended drawing reference: 1- sulfuric acid storage tank, 2- medicament agitator tank, 3- embathe pond body, 4- drainage pond, 5- pump pond,
6- cloth pencil road, 7- alkali liquor storage tank.
Specific embodiment
Carry out the technical solution that the present invention will be described in detail by the following examples, embodiment below is only exemplary,
It is only capable of for explanation and illustration technical solution of the present invention, and the limitation to technical solution of the present invention cannot be construed to.
The principle of the present invention is based on chromic slag wet method detoxifcation technology.Cr VI is water soluble salt, and concrete, brick etc. build rubbish
Rubbish is with the pollution of chromium feature inside surface enrichment, infiltration and itself is in alkalinity, therefore sulfuric acid is configured to soak with ferrous sulfate
The dissolution for accelerating hexavalent chromium pollutant in building waste is impregnated in wash agent by sulfuric acid, and Cr VI is immediately by the ferrous iron in solution
Ion reduction is trivalent chromium, and medical fluid empties after the completion of embathing, and is finally reached the purpose for eliminating building waste pollution of chromium.
Embodiment 1
As shown in Figure 1, the present invention provides a kind of pollution of chromium building waste immersion systems, which includes that capacity is 8-12m3
Modified PVC sulfuric acid storage tank 1, capacity 8-12m3The alkali liquor storage tank 7 and medicament agitator tank 2 of steel lining plastic, drainage pond 4, pump pond
5, section is that rectangle embathes pond body 3 and cloth pencil road 6, and the side of the sulfuric acid storage tank 1 is provided with sour discharge port, sulfuric acid storage tank 1
The other side be provided with discharge port, the discharge port of sulfuric acid storage tank 1 is connect by pipeline with the first charging aperture of medicament agitator tank 2；
The second charging aperture and water inlet for adding ferrous sulfate are additionally provided at the top of medicament agitator tank 2.The side of alkali liquor storage tank 7 is set
It is equipped with alkali discharge port, the other side of alkali liquor storage tank 7 is provided with discharge port, and the discharge port of alkali liquor storage tank 7 passes through pipeline and cloth pencil
Road 6 connects, and is additionally provided with valve between the discharge port and cloth pencil road 6 of alkali liquor storage tank 7.
The outer surface of medicament agitator tank 2 is also coated with anti-corrosive paint.Ferrous sulfate is added relative to the quality of building waste
Than 5-10%, 28% sulfuric acid phase, which adds the quality of building waste, compares 1%-2%.Sulfuric acid liquid from the first of medicament agitator tank 2 into
Material mouth input, ferrous sulfate are inputted by second charging aperture, and in medicament agitator tank 2 plus water mixes, finally from medicament agitator tank 2
Bottom discharge nozzle is sent out.The height at least cofferdam of 0.6m is provided on the outside of sulfuric acid storage tank 1, medicament agitator tank 2 and alkali liquor storage tank 7.
Outside is provided with the height at least enclosing of 0.6m.The main function of setting area enclosing be effectively to prevent sulfuric acid storage tank 1 or
There is safety accident when revealing in medicament agitator tank 2.
The side in drainage pond 4 is arranged in, close to the position for embathing pond body 3 in the pump pond 5 for being used to provide power source；Pump pond 5
It is connect between drainage pond 4 by pipeline.Be to keep dry in pump pond 5, be equipped with above pump 5 pond body of pond it is rain-proof shed, in pond body
Portion can also be equipped with draining pump.The right side in the drainage pond 4, which is provided with, embathes pond body 3；Drainage pond 4 and embathe pond body 3
Between be also provided with grid.The side long side for embathing pond body 3 is provided with cloth pencil road 6, the length and leaching in cloth pencil road 6
The long side length of wash pool body 3 is adapted, and is provided on cloth pencil road 6 for rapidly and uniformly input processing liquid into medicine
Valve, into medicine valve at least there are four.The treatment fluid modulated in medicament agitator tank 2 is set in 2 bottom of medicament agitator tank
Discharge port pass through pipeline be sent into drainage pond 4 feeding inlet；The discharge port in the drainage pond 4 passes through pipeline and cloth pencil road
6 connections；The treatment fluid for having embathed rubbish flows back to drainage pond 4 through embathing the discharge port of pond body 3, and is set in drainage pond 4
The waste solution channel of bottom is discharged.
Wherein, embathing 3 size of pond body can be 25 × 9 × 2.25m, and pool wall thickness can be 0.4m, be coated in pool wall anti-
Sour coating.The bottom of pond for embathing pond body 3 is obliquely installed, and inclination angle can be 2 ‰ ° or so, the i.e. pond far from 4 side of drainage pond
Bottom top surface is slightly above close to the bottom of pond top surface of 4 side of drainage pond.
Embathing process provided by the invention for pollution of chromium building waste can be operated with batch-type, specific processing step
It is as follows:
Step 1, construction waste crushing screening, the primitive architecture rubbish of several centimeters formed when place is removed to several tens cm
Particle is transported to workshop, is crushed to 2-5cm；
3 load of pond body is embathed in step 2, the soil that screening removal is mingled in primitive architecture rubbish, reduction；
Building waste after sieving is transported to and embathes in pond body 3 and uniformly stack, stacking height 1.2m by step 3, when charging
Long 4h.
Step 4 is prepared treatment fluid and is embathed；
Ferrous sulfate and the sulfuric acid mixed preparing in medicament agitator tank 2 obtain embathing with treatment fluid, are set in medicament agitator tank 2
The discharge port of bottom by pipeline be sent into drainage pond 4 feeding inlet, open cloth pencil road 6 on into medicine valve, work as treatment fluid
After building waste heap body 0.5-0.8m, stop into treatment fluid, building waste embathes in a medicament, reduces building waste pH
Value, makes Cr VI dissolve out and be reduced, and pollution building waste is repaired, and embathes 12 hours；
Step 5, the treatment fluid for having embathed rubbish flows down naturally along the bottom of pond gradient for embathing pond body 3 enters storage row by discharge port
Pond 4；It is recycled or is discharged into sewage disposal system, required duration 4 hours；
Step 6 detects treatment fluid in drainage pond 4；If reaching the standard that can be continued to use, medicament is recycled, it is no
It is then set the waste solution channel in 4 bottom of drainage pond and is discharged into sewage treatment facility or other designated positions；
Step 7, lye neutralize, and due to embathing treatment fluid in acidity, to enable building waste pH value to reach repairing standard, beat
Lye is added to pond body 3 is embathed by cloth pencil road 6 in the valve for opening 7 discharge outlet of alkali liquor storage tank.In order to make lye that will build rubbish
Rubbish pH is recalled to by acidity to neutrality, reaches reparation target value, and lye liquid level needs to be higher by building waste heap body 0.5-0.8m, lye
A length of 4 hours when neutralization；
Step 8 empties the lye for having neutralized building waste residual acid；
Step 9, self-test are checked and accepted, and will be transported by embathing the building waste of processing from embathing in pond body 3, are deposited in clear with forklift
Clean working area and the sample inspection that takes that treated；
Step 10, testing result cannot reach reparation target, then send back to and embathed in pond body 3 again, and repeat the above steps four-steps
Nine.
During equipment or idle pond body, to carry out overhauling in time and be done for the processing of next period building waste
Good luck row prepares.
It is provided by the present invention it is above-mentioned embathe method for pollution of chromium building waste have good repairing effect, and locate
The reason period is short, processing cost is low.
Embodiment 2, a kind of pollution of chromium building waste immersion systems, with embodiment 1, the difference is that: rectangle embathes pond
There are two bodies 3 and is set side by side, and cloth pencil road 6, which has two and is symmetricly set on, to be embathed in pond body 3,6 one end of cloth pencil road
It is connected to by pipeline with 4 discharge port of drainage pond, provides power source by pump pond 5.It is shown in Figure 2.
Embodiment 3, a kind of pollution of chromium building waste immersion systems, with embodiment 1, the difference is that: rectangle embathes pond
There are four bodies 3 and is set side by side.As shown in figure 3, figure 4 and figure 5.
As shown in above-described embodiment 1-3, a kind of pollution of chromium building waste immersion systems provided by the invention and its side of embathing
Method, wherein medicament agitator tank 2, alkali liquor storage tank 7 used in immersion systems, sulfuric acid storage tank 1, pump pond 5 in pump quantity, cloth pencil
6 length of road, drug-feeding tube network management material, the enterprising medicine valve in cloth pencil road 6 quantity can according to actual treatment amount, disposal field etc. because
Element is adjusted flexibly.By adding, reducing part-structure but the similar reaction tank of main structure, it is accordingly to be regarded as a kind of change of the invention
It is logical.The technical program key is to embathe building waste, i.e., building waste heap body is completely submerged in liquid medicine,
And stop the regular hour.This technology is better than existing processing mode, and charging may be implemented, cloth medicine, embathe, neutralize, emptying, going out
The building waste of material embathes overall process, has medicament circulation, real time monitoring and the function of adjusting.
The foregoing is merely the preferable specific embodiments of the present invention, but scope of protection of the present invention is not limited thereto,
The change or replacement that anyone skilled in the art is expected in the technical scope disclosed by the present invention should all be contained
Lid is within protection scope of the present invention.
Claims (10)
1. a kind of pollution of chromium building waste immersion systems, it is characterised in that: the immersion systems include sulfuric acid storage tank (1), lye storage
Tank (7), medicament agitator tank (2), drainage pond (4), pump pond (5), section are that rectangle embathes pond body (3) and cloth pencil road (6), institute
The side for stating sulfuric acid storage tank (1) is provided with sour discharge port, and the other side of sulfuric acid storage tank (1) is provided with discharge port, sulfuric acid storage tank (1)
Discharge port connect with the first charging aperture of medicament agitator tank (2) by pipeline；
The second charging aperture and water inlet for adding ferrous sulfate are additionally provided at the top of medicament agitator tank (2)；
The side of alkali liquor storage tank (7) is provided with alkali discharge port, and the other side of alkali liquor storage tank (7) is provided with discharge port, alkali liquor storage tank
(7) discharge port is connect by pipeline with cloth pencil road (6), is also set between the discharge port and cloth pencil road (6) of alkali liquor storage tank (7)
It is equipped with valve；
The side of the drainage pond (4), which is provided with, embathes pond body (3)；The side long side for embathing pond body (3) is provided with cloth medicine
Pipeline (6)；
The treatment fluid modulated in medicament agitator tank (2) is set the discharge port in medicament agitator tank (2) bottom and passes through pipeline
It is sent into the feeding inlet of drainage pond (4)；The discharge port of the drainage pond (4) is connect by pipeline with cloth pencil road (6)；
The treatment fluid for having embathed rubbish is embathed the discharge port of pond body (3) and flows back to drainage pond (4), and is set in drainage pond
(4) the waste solution channel discharge of bottom.
2. pollution of chromium building waste immersion systems as described in claim 1, which is characterized in that sulfuric acid storage tank (1), medicament stirring
The height at least cofferdam of 0.6m is provided on the outside of tank (2) and alkali liquor storage tank (7).
3. pollution of chromium building waste immersion systems as described in claim 1, which is characterized in that embathe pond body (3) having a size of 25
× 9 × 2.25m, pool wall thickness 0.4m.
4. pollution of chromium building waste immersion systems as described in claim 1, which is characterized in that the bottom of pond for embathing pond body (3) is inclined
Tiltedly setting, the bottom of pond top surface far from drainage pond (4) side are higher than close to the bottom of pond top surface of drainage pond (4) side.
5. pollution of chromium building waste immersion systems as described in claim 1, which is characterized in that the length in cloth pencil road (6) with
The long side length for embathing pond body (3) is adapted.
6. pollution of chromium building waste immersion systems as described in claim 1, which is characterized in that be provided on cloth pencil road (6)
At least four into medicine valve.
7. pollution of chromium building waste immersion systems as described in claim 1, which is characterized in that pump pond (5) is arranged in drainage
The side in pond (4), the close position for embathing pond body (3)；It is connect between pump pond (5) and drainage pond (4) by pipeline.
8. pollution of chromium building waste immersion systems as described in claim 1, which is characterized in that be provided with gear at the top of pump pond (5)
Awning.
9. pollution of chromium building waste immersion systems as described in claim 1, which is characterized in that the capacity of medicament agitator tank (2)
For 8-12m3；The material of medicament agitator tank (2) is steel lining plastic.
10. pollution of chromium building waste immersion systems as described in any one of claim 1-9 embathe method, feature exists
In, the specific steps are as follows:
Step 1, construction waste crushing screening, the primitive architecture rubbish of several centimeters formed when place is removed to several tens cm
Particle is transported to workshop, is crushed to 2-5cm；
Step 2, the soil that screening removal is mingled in primitive architecture rubbish；
Building waste after sieving is transported to and embathes in pond body (3) and uniformly stack, stacking height 1.2m by step 3；
Step 4 is prepared treatment fluid and is embathed；
Ferrous sulfate and sulfuric acid obtain embathing with treatment fluid in medicament agitator tank (2) interior mixed preparing, are set and stir in medicament
The discharge port of tank (2) bottom is sent into the feeding inlet of drainage pond (4) by pipeline, open on cloth pencil road (6) into medicine valve,
After treatment fluid is higher than building waste heap body 0.5-0.8m, stop embathing 12 hours into treatment fluid；
The discharge port that the treatment fluid for having embathed rubbish is embathed pond body (3) is flowed into drainage pond (4) by step 5；
Step 6 detects drainage pond (4) interior treatment fluid；If reaching the standard that can be continued to use, medicament is recycled,
Otherwise it is set the waste solution channel in drainage pond (4) bottom and is discharged into sewage treatment facility or other designated positions；
Step 7, lye neutralize, and due to embathing treatment fluid in acidity, to enable building waste pH value to reach repairing standard, beat
Lye is added to pond body (3) are embathed by cloth pencil road (6) in the valve for opening alkali liquor storage tank (7) discharge outlet, and lye liquid level needs
Be higher by building waste heap body 0.5-0.8m, in lye and when it is 4 hours a length of；
Step 8 empties the lye for having neutralized building waste residual acid；
Step 9, self-test are checked and accepted, and will be transported by embathing the building waste of processing from embathing in pond body (3), are deposited in forklift
Cleaning working area and the sample inspection that takes that treated；
Step 10, testing result cannot reach reparation target, then send back to and embathed in pond body (3) again, and repeat the above steps four-steps
Rapid nine.
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