CN105772497B - A kind of soil heterotopic elution reparation complete set of equipments - Google Patents
A kind of soil heterotopic elution reparation complete set of equipments Download PDFInfo
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- CN105772497B CN105772497B CN201610224704.6A CN201610224704A CN105772497B CN 105772497 B CN105772497 B CN 105772497B CN 201610224704 A CN201610224704 A CN 201610224704A CN 105772497 B CN105772497 B CN 105772497B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
- B03B5/52—Spiral classifiers
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
It is eluted the present invention provides a kind of soil heterotopic and repairs complete set of equipments, belong to contaminated sites recovery technique field.It solves the problems such as generally existing soil texture of existing elution equipment is poor for applicability, it is single to repair pollutant, elution device systems are numerous and jumbled, manipulation strength is high, water consumption and displacement are big.This equipment, including the wet screening mechanism set gradually, screw classifying mechanism, elute repairing mechanism, wastewater treatment mechanism and Sewage treatment utilize mechanism, contaminated soil separates with screw classifying and elution repairing mechanism via wet screening mechanism and obtains cobble, granule and clean up dirt form soil heterotopic and elute repair process, the dystopy elution of the reparation and different-grain diameter rank soil that present invention can be suitably applied to heavy metal and/or organic polluted soil is repaired, and have applied widely, reduced training is good, repairing effect is stablized, operation operation is easy, water consumption is small, the advantages that wastewater recycle rate is high.
Description
Technical field
The invention belongs to contaminated sites recovery technique fields, refer in particular to a kind of soil heterotopic elution reparation complete set of equipments.
Background technique
Soil is the basic eco-environmental elements of composition natural ecosystems and the substance base that the mankind depend on for existence and development
Plinth.Aggravation with mankind's activity to natural environment influence, produced pollution object is possible to logical during people's production and living
It crosses various approach and enters soil, and be more than the receiving and detergent power of soil, so as to cause soil natural functional disturbance and soil
Earth deterioration, and then serious adverse effect may be generated to neighbouring human body and surrounding enviroment.Therefore, it is necessary to take rationally
Technological means carry out contaminated soil remediation, thus effectively control soil pollution caused by human health and Ecological Environment Risk.
Soil heterotopic elution i.e. contaminated soil is transferred in the reactor of ground from contaminated area, using water or its
Its eluent the effects of by chelating, solubilising, precipitating, separates and soil pollution component or the pollutant in soil is transferred to liquid
Phase, then to the technology that the leacheate containing pollutant is handled.Soil heterotopic elution belongs to physical/chemical recovery technique, can use
Include heavy metal and half volatile organic contaminant, difficult volatile organic contaminant etc. in the polluter of processing, has effective
Soil pollutant concentration, flexible operation are reduced, process control repairs the advantages that speed is fast.
According to existing research and application at present, soil heterotopic elutes the reparation for big partial size rank contaminated soil more
Effectively, the pollutant in gravel, medium-fine sand and similar soil is easier to be cleaned coming out, and the small particles such as cohesive soil rank soil
Pollutant then more difficult cleaning in earth.The generally existing soil texture of existing elution equipment is poor for applicability, can repair pollutant list
One, the problems such as elution device systems are numerous and jumbled, manipulation strength is high, water consumption and displacement are big.
Summary of the invention
It is a primary object of the present invention to elute the deficiency in small particle rank soil pollution reparation for soil heterotopic,
A kind of dystopy elution complete set of equipments that can be suitable for different pollutant types, different-grain diameter rank soil remediation is provided.
The object of the present invention is achieved like this:
Complete set of equipments is repaired in a kind of elution of soil heterotopic, it is characterised in that: including set gradually wet screening mechanism, spiral shell
It revolves classification mechanism, elution repairing mechanism, wastewater treatment mechanism and Sewage treatment and utilizes mechanism, contaminated soil is via wet screening machine
Structure is separated with screw classifying and elution repairing mechanism show that cobble, granule and clean up dirt form soil heterotopic elution and repaired
Journey, the waste water exported from screw classifying and elution repairing mechanism isolate sludge and processing water, processing by wastewater treatment mechanism
Water is delivered to wet screening mechanism or/and screw classifying using mechanism by Sewage treatment and elution repairing mechanism forms waste water and follows
Ring recycles.
It is repaired in complete set of equipments in a kind of above-mentioned soil heterotopic elution, the specific structure of the wet screening mechanism
Be: Wet oscillating screen sieve posterior segment is provided with 4 groups of high-pressure water nozzles, wherein 3 groups of front spray head uses recycling
Water is handled as injection water source；1 group of spray head next uses clean tap water as injection water source, shakes by sluicing wet type
Dynamic sieve sieve improves the crushing and screening effect to soil and to the washing process of cobble on sieve.
It is repaired in complete set of equipments in a kind of above-mentioned soil heterotopic elution, the specific structure of the screw classifying mechanism
It is: including the spiral classifier below Wet oscillating screen sieve, high-pressure water nozzle is set before the sand return mouth of spiral classifier,
Clear water washing is carried out to the granule that spiral classifier is isolated as water source using tap water, the contaminated soil particle warp isolated
By the overflow port overflow of spiral classifier to collecting tank.
It is repaired in complete set of equipments in a kind of above-mentioned soil heterotopic elution, the specific structure of the elution repairing mechanism
It is: including the elution stirred tank by Pulp pump and collecting tank conveying connection, is equipped with blender in elution stirred tank and can reduce
Stirring dead angle and the circulation stirring pipe for strengthening hybrid reaction effect, the delivery outlet for eluting stirred tank are de- by Pulp pump connection centrifugation
Water dispenser realizes soil dehydration under the action of the centrifugal force, can effectively realize and be difficult to realize to silty clay class routine dehydration technique
Fine-grained soil dehydration, the clear liquid delivery outlet of centrifugal dehydrator connects clear liquid collecting tank.
It is repaired in complete set of equipments in a kind of above-mentioned soil heterotopic elution, the specific structure of the wastewater treatment mechanism
Be: the wastewater equalization pond including connecting clear liquid collecting tank, the waste water after adjusting homogeneous are pumped into waste water reaction pond and carry out dosing chemistry
Reaction, waste water reaction pond connect inclined-tube sedimentation tank, and inclined-tube sedimentation tank passes through mud-water separation, and output supernatant to Sewage treatment utilizes
Mechanism, precipitating sludge are discharged into sludge collecting pit.
It is repaired in complete set of equipments in a kind of above-mentioned soil heterotopic elution, the waste water reaction pond includes that pH is adjusted
Cell, chemical reaction units lattice, coagulation cell and flocculation unit lattice, pH adjust cell, chemical reaction units lattice, coagulation
Blender is equipped in cell and flocculation unit lattice and adds acid/base, reactant, coagulant, flocculant respectively, in blender
Under the action of, medicament is sufficiently mixed with waste water and contacts, and pollutant separates under pharmacy effect with waste water, according to adding medicament not
Together, this element can not only handle heavy metal contaminants, but also can handle organic pollutant.
It is repaired in complete set of equipments in a kind of above-mentioned soil heterotopic elution, the precipitating sludge of the inclined-tube sedimentation tank passes through
Gravity is discharged into sludge collecting pit, then will collect sludge by screw pump and be pumped into the plate and frame filter press progress sludge dewatering, dehydration
The mud cake generated afterwards is transported outward as hazardous waste and is disposed.
It is repaired in complete set of equipments in a kind of above-mentioned soil heterotopic elution, the Sewage treatment utilizes the specific knot of mechanism
Structure is: including dosing/discharge bay, dosing/discharge bay is separately connected water return tank and double purification mechanism, according to dosing/discharge bay
The difference of interior water quality, the water in dosing/discharge bay directly overflow can enter reuse water pot as elution injection water source；Or into
It pressurizes after row dosing precipitation process or chemical oxidation treatment by pump and inputs double purification mechanism progress double purification.
It is repaired in complete set of equipments in a kind of above-mentioned soil heterotopic elution, double purification mechanism is: including sequentially connected
Sandfiltration pot and charcoal canister, charcoal canister are connected to reuse water pot.
Workflow of the invention is as follows:
(1) wet screening: Wet oscillating screen sieve posterior segment is provided with 4 groups of high-pressure water nozzles, before 3 groups of spray heads use leaching
Recycle-water after washing wastewater treatment is as injection water, and last 1 group of spray head uses clean tap water, acts on by sluicing
It is broken to sieve upper large granular impurity to improve the crushing and screening effect to soil and realize and wash to the clear water for sieving upper cobble.This stage
Soil constitution can be achieved to mix with the initial contact of recycle-water (containing eluent), while the cobble for being practically free of polluter being washed
It is expelled directly out after washing, reduces contaminated soil amount to be processed.
(2) screw classifying: for the sieving material and flushing water of Wet oscillating screen with gravity fall to spiral classifier, spiral is low
Speed rotation, is sufficiently stirred slurries, and soil constitution is made further to contact mixing with recycle-water (containing eluent).By gravitational settling
With screw lifting, relatively big and heavy granule is discharged from sand return mouth, and more tiny soil particle is then overflowed from overflow weir.Sand return mouth
Preceding same setting high-pressure water nozzle carries out clear water washing to the granule that spiral classifier is isolated using tap water, will hardly
It is expelled directly out after granule washing containing polluter, is further reduced contaminated soil amount to be processed.
(3) elution stirring: Soil slurry is delivered to elution stirred tank by Pulp pump, while being added in elution stirred tank
Simultaneously reaction is sufficiently stirred in eluent, and the selection of eluent type is different and different according to soil pollution species.Elution is stirred
The smaller liquid-solid ratio of process choosing is mixed to reduce the yield of wastewater eluting, simultaneous selection longer residence time, to overcome granule
The not strong disadvantage of diameter rank soil particle permeability, enables eluent to be sufficiently mixed with pollutant.It elutes stirred tank and removes blender
It is externally provided with circulation stirring pipe, reduce stirring dead angle and strengthens hybrid reaction effect.
(4) centrifugal dehydration: it is scrubbed to be stirred to react rear soil pollutant and be effectively transferred to liquid phase from solid phase, it mixes
Mud delivers into centrifugal dehydrator by Pulp pump, realizes effective soil dehydration under the effect of high-speed rotating centrifugal force,
Clear liquid is discharged into subsequent wastewater treatment unit, and dehydration soil then can be used as cleaning soil, and he uses.Select centrifugal dehydrator effectively real
The dehydration for the fine-grained soil that now silty clay class routine dehydration technique is difficult to realize.
(5) wastewater treatment: the dehydration clear liquid of centrifugal dehydrator is delivered to wastewater equalization pond by pump, after overregulating homogeneous
It is pumped into waste water reaction pond and carries out dosing reaction, waste water reaction pond is discharged gravity and flows into inclined-tube sedimentation tank, by mud-water separation, supernatant
Liquid stream enters dosing/discharge bay, and precipitating sludge is discharged into sludge collecting pit.According to the difference for adding medicament, this treatment unit for waste water was both
Heavy metal contaminants can be handled, and organic pollutant can be handled.
(6) waste water recycling: according to water quality difference and draining whereabouts, dosing/discharge bay water outlet can directly overflow enter back
Soil leaching system is back to water pot and efficiently uses the eluent remained in water outlet；Also it can be passed through after further agent-feeding treatment
Pump pressurization is crossed, be back to Soil leaching system by passing back into reuse water pot after sandfiltration pot and charcoal canister filtering again or receives pipe
Discharge.According to the difference for adding medicament, this element equally can not only handle heavy metal contaminants, but also can handle organic pollutant, and
And the advanced treating of waste water can be realized by sand filtration and active carbon filter station.
(7) Treatment of Sludge: the precipitating sludge of inclined-tube sedimentation tank is discharged into sludge collecting pit by gravity, then will by screw pump
It collects sludge and is pumped into plate and frame filter press progress sludge dewatering, the mud cake generated after dehydration is transported outward as hazardous waste and disposed.
The present invention is prominent and beneficial compared with prior art to be had the technical effect that
(1) simple, reliable, convenient wet screening and screw classifying equipment are used, soil constitution is carried out according to partial size
Distinguish, discharge be practically free of polluter and by washing cobble and granule, reduce Soil leaching processing total amount, while
Mixed form and the time of contact of other tiny soil particles and recycle-water (containing eluent) are realized in classification process in advance.
(2) be integrated with originally Water washing device in the sand export of wet screening and screw classifying equipment, may be implemented be
The washing function of cobble and granule that system is isolated, effectively removes remaining trace contaminant thereon, it is ensured that Environmental security, simultaneously
Reduce the complexity of system.
(3) the elution stirred tank for using longer dwell time overcomes small particle rank soil particle permeability is not strong to lack
Point, is sufficiently mixed eluent with pollutant.Elution stirred tank is additionally provided with circulation stirring pipe in addition to blender, reduces stirring dead angle
And strengthen hybrid reaction effect.
(4) washed off soil dehydration is carried out using centrifugal dehydrator.It is poor to filterability, the high sticky great soil group soil of viscosity, from
Fast dewatering equally may be implemented in heart dewaterer.
(5) matched wastewater treatment equipment is applied widely, operating flexibility is big, can not only handle heavy metal-containing waste water, but also can
Processing contains organic wastewater, processed waste water both can direct reuse in elution circuit and using remaining eluent effective component,
Reuse after waste water progress advanced treating or pipe of receiving can be discharged again, it is ensured that entire elution circuit can both make to be suitable for organic contamination
The reparation of soil, and it is applicable to the reparation of heavy-metal contaminated soil, and water consumption and wastewater discharge can be reduced.
Therefore, the present invention may be not only suitable for the reparation and different-grain diameter rank of heavy metal and/or organic polluted soil
The dystopy of soil, which elutes, repairs, and with applied widely, reduced training is good, repairing effect is stable, operation operation is easy, consumption
The advantages that water is small, wastewater recycle rate is high.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
With specific embodiment, the invention will be further described with reference to the accompanying drawing: referring to Fig. 1,
Complete set of equipments is repaired in a kind of elution of soil heterotopic, including set gradually wet screening mechanism, screw classifying mechanism,
It elutes repairing mechanism, wastewater treatment mechanism and Sewage treatment and utilizes mechanism, contaminated soil is via wet screening mechanism and spiral point
Grade and elution repairing mechanism separation show that cobble, granule and clean up dirt form soil heterotopic elution repair process, from spiral point
Grade and the waste water of elution repairing mechanism output isolate sludge by wastewater treatment mechanism and handle water, and processing water is returned by waste water
It receives and is delivered to wet screening mechanism or/and screw classifying and elution repairing mechanism formation waste water recycling using mechanism.
Contaminated soil to be processed is delivered to Wet oscillating screen 2 by feeding belt conveyor 1, and the bulky grain of compass screen surface retention is miscellaneous
Matter carries out broken and cleans (first 3 groups use elution recycle-water, and last 1 group uses tap water) by 4 groups of high-pressure nozzles, after cleaning
The cobble left on sieve comprehensively utilizes after being delivered to cobble working area by cobble belt conveyor 3.It is arranged below Wet oscillating screen 2
Aggregate bin 4 collects sieving material and flushing water merger to spiral classifier 5, relatively crude by gravitational settling and screw lifting
The granule of weight is discharged from sand return mouth, comprehensively utilizes after being delivered to granule working area by granule belt conveyor 6, sand export is same
Clear water washing is sampled, more tiny soil particle is then spilled over to overflowing liquid collecting tank 7 from overflow weir.
Soil slurries in overflowing liquid collecting tank 7 are delivered to by elution charging Pulp pump 8 elutes stirred tank 9, while
Eluent is added in elution stirred tank 9 and is stirred to react.Pass through dehydration charging Pulp pump 10 by the mixing mud being stirred to react
It is delivered to centrifugal dehydrator 11, mixing mud realizes soil dehydration under the action of the centrifugal force, passes through dehydration after being dehydrated soil discharging
Soil belt conveyor 12 uses after being delivered to dehydration soil working area as cleaning soil.
The clear liquid that the dehydration of centrifugal dehydrator 11 generates is collected by clear liquid collecting tank 13, is conveyed by clear liquid elevator pump 14
To wastewater equalization pond 15, waste water after overregulating homogeneous is promoted to waste water reaction pond 17 by waste water lifting pump 16 and is added
Medicine reaction, waste water reaction pond are discharged gravity and flow into inclined-tube sedimentation tank 18, and by mud-water separation, supernatant flows into dosing/discharge bay
19, precipitating sludge is discharged into sludge collecting pit 21.
According to water quality difference, dosing/discharge bay 19 water outlet can directly overflow enter reuse water pot 20 be back to soil leaching
Wash system；Also it can pressurize after further agent-feeding treatment by intensive treatment force (forcing) pump 26, pass through sandfiltration pot 27 and charcoal canister 28
Passed back into after filtering reuse water pot 20 be back to Soil leaching system or receive pipe discharge.Sludge passes through dirt in sludge collecting pit 21
Mud delivery pump 22 will collect sludge and be pumped into the progress sludge dewatering of plate and frame filter press 23, and the mud cake generated after dehydration is as hazardous waste
Outward transport disposition, then gravity flows into pressing filtering liquid collecting tank 24 and is promoted to wastewater equalization pond 15 by pressing filtering liquid elevator pump 25 pressing filtering liquid
It is handled.Material washs tap water used from originally water pot 29 in Wet oscillating screen 2, spiral classifier 5.
The invention will be further described for following embodiment.The specification of each capital equipment such as following table institute in the present embodiment
Show:
The soil heterotopic in complete set of equipments Mr. Yu's heavy metal pollution place is eluted and is repaired, site area about 20000 is flat
Square rice, wait elute the total earth volume 28000m of processing3, for contaminated soil based on silty clay, main contamination index is heavy metal cadmium
(Cd), nickel (Ni), zinc (Zn).
By 45 days trial operations, equipment was run 20 hours daily, which reaches 3m3/ hr design treatment ability, it is dirty
Soil is contaminated after classification, elution, dehydration, and main contamination index is below reparation target value, and repairing effect is stablized.Wastewater eluting
For reclamation rate up to 80% or more, daily iron supplement tap water is mainly used for the washing of cobble, granule.
Numerical value is as shown in the table after numerical value, reparation target value and reparation before the reparation of the main contamination index of contaminated soil:
Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore: it is all according to
The equivalence changes that structure of the invention, shape, principle are done, should all be covered by within protection scope of the present invention.
Claims (6)
1. complete set of equipments is repaired in a kind of soil heterotopic elution, it is characterised in that: including wet screening mechanism, the spiral set gradually
Classification mechanism, elution repairing mechanism, wastewater treatment mechanism and Sewage treatment utilize mechanism, and contaminated soil is via wet screening mechanism
It is separated with screw classifying and elution repairing mechanism and show that cobble, granule and clean up dirt form soil heterotopic elution repair process,
The waste water exported from screw classifying and elution repairing mechanism isolates sludge and processing water, processing water warp by wastewater treatment mechanism
Cross Sewage treatment using mechanism be delivered to wet screening mechanism or/and screw classifying and elution repairing mechanism formed waste water be recycled back to
It receives and utilizes；The specific structure of the wet screening mechanism is: Wet oscillating screen sieve posterior segment is provided with 4 groups of high pressure water jets
Head, wherein the 3 groups of spray heads in front use the processing water of recycling as injection water source；1 group of spray head next uses clean
Tap water is as injection water source, by the raising of sluicing Wet oscillating screen sieve to the crushing and screening effect of soil and to sieve
Upper cobble is washed；The specific structure of the elution repairing mechanism is: including being connected by Pulp pump and collecting tank conveying
Elution stirred tank, equipped with blender and stirring dead angle can be reduced and strengthen the circulation of hybrid reaction effect stir in elution stirred tank
Pipe is mixed, the delivery outlet for eluting stirred tank connects centrifugal dehydrator by Pulp pump, realizes soil dehydration under the action of the centrifugal force, can
Effectively to realize the dehydration for the fine-grained soil being difficult to realize to silty clay class routine dehydration technique, the clear liquid of centrifugal dehydrator is defeated
Outlet connection clear liquid collecting tank；The Sewage treatment is using the specific structure of mechanism: including dosing-discharge bay, dosing-goes out
Pond is separately connected water return tank and double purification mechanism, according to the difference of water quality in dosing-discharge bay, in dosing-discharge bay
Water directly overflow can enter reuse water pot as elution injection water source；Either carry out at dosing precipitation process or chemical oxidation
It pressurizes after reason by pump and inputs double purification mechanism progress double purification.
2. complete set of equipments is repaired in a kind of soil heterotopic elution according to claim 1, it is characterised in that: the spiral point
The specific structure of grade mechanism is: including being located at the spiral classifier below Wet oscillating screen sieve, the sand return mouth of spiral classifier
Preceding setting high-pressure water nozzle carries out clear water washing, separation to the granule that spiral classifier is isolated as water source using tap water
Contaminated soil particle out is via the overflow port overflow of spiral classifier to collecting tank.
3. complete set of equipments is repaired in a kind of soil heterotopic elution according to claim 1, it is characterised in that: at the waste water
The specific structure of reason mechanism is: the wastewater equalization pond including connecting clear liquid collecting tank, it is anti-that the waste water after adjusting homogeneous is pumped into waste water
Pond is answered to carry out dosing chemical reaction, waste water reaction pond connects inclined-tube sedimentation tank, and inclined-tube sedimentation tank passes through mud-water separation, exports supernatant
Liquid to Sewage treatment utilizes mechanism, and precipitating sludge is discharged into sludge collecting pit.
4. complete set of equipments is repaired in a kind of soil heterotopic elution according to claim 3, it is characterised in that: described is described useless
Water reaction tank includes that pH adjusts cell, chemical reaction units lattice, coagulation cell and flocculation unit lattice, pH adjust cell,
Blender is equipped in chemical reaction units lattice, coagulation cell and flocculation unit lattice and is added acid/base respectively, reactant, is mixed
Solidifying agent, flocculant, under the action of blender, medicament is sufficiently mixed with waste water and contacts, pollutant under pharmacy effect with waste water
Separation, according to the difference for adding medicament, this element can not only handle heavy metal contaminants, but also can handle organic pollutant.
5. complete set of equipments is repaired in a kind of soil heterotopic elution according to claim 3, it is characterised in that: the inclined tube is heavy
The precipitating sludge in shallow lake pond is discharged into sludge collecting pit by gravity, then will collect sludge by screw pump and be pumped into plate and frame filter press progress
Sludge dewatering, the mud cake generated after dehydration are transported outward as hazardous waste and are disposed.
6. complete set of equipments is repaired in a kind of soil heterotopic elution according to claim 1, it is characterised in that: double purification mechanism
Be: including sequentially connected sandfiltration pot and charcoal canister, charcoal canister is connected to reuse water pot.
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| CN201610224704.6A CN105772497B (en) | 2016-04-12 | 2016-04-12 | A kind of soil heterotopic elution reparation complete set of equipments |
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| CN201610224704.6A CN105772497B (en) | 2016-04-12 | 2016-04-12 | A kind of soil heterotopic elution reparation complete set of equipments |
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