CN208684674U - Processing system for garbage filter concentrate zero-emission - Google Patents
Processing system for garbage filter concentrate zero-emission Download PDFInfo
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- CN208684674U CN208684674U CN201821384977.8U CN201821384977U CN208684674U CN 208684674 U CN208684674 U CN 208684674U CN 201821384977 U CN201821384977 U CN 201821384977U CN 208684674 U CN208684674 U CN 208684674U
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Abstract
The utility model discloses a kind of processing systems for garbage filter concentrate zero-emission, wherein, the concentrated solution of the entrance input counter-infiltration system of dish tubular type nanofiltration system, the separating liquid of dish tubular type nanofiltration system is input to ductwork type counter-infiltration system, and the concentrate of dish tubular type nanofiltration system, which is exported to coagulation, softens settling system；The concentrate of ductwork type counter-infiltration system is exported to mechanical compression re-evaporation system, and the evaporation mother liquor of mechanical compression re-evaporation system is exported to centrifugal dehydrator, and the liquid that centrifugal dehydrator is isolated, which is exported to coagulation, softens settling system；The sediment of coagulation softening settling system is exported to frame dehydration machine, and the dehydrate of frame dehydration machine exports landfill, and the precipitating supernatant of coagulation softening settling system, which is exported to pretreatment conditioning tank, carries out circular treatment.By the technical solution of the utility model, the drawbacks of traditional consumer waste infiltration liquid film concentrate is handled is overcome, the zero-emission of rubbish percolation liquid membrane concentrate is truly realized.
Description
Technical field
The utility model relates to pollute processing technology field more particularly to a kind of for garbage filter concentrate zero-emission
Processing system.
Background technique
For a long time, house refuse sanitary landfills is the basic mode of China's most cities garbage disposal, therefore complete
The landfill leachate treatment that state's various regions garbage loading embeading generates becomes the severe challenge of each place Environmental security.Landfill leachate has
The problems such as complicated component, pollutant concentration are high, inorganic salt content is high, coloration is high and stench, processing difficulty is very big.It is general at present
Technique are as follows: biochemical treatment system+ultrafiltration+reverse osmosis can guarantee that standard water discharge is discharged substantially, however, to ensure that water outlet reaches
Mark, the serious problems that the use of membranous system also brings organic matter and inorganic salts to be enriched with, easily causes secondary pollution.
China's household refuse landfill sites about more than 2000 at present, wherein more than half above using biochemistry+ultrafiltration+nanofiltration reverse osmosis
Saturating technique can generate the counter-infiltration system concentrate of about 15%-40% at the same time, there is no reasonable concentrate processing skill at present
Art generallys use back the measures such as recharge in spray incinerator and landfill yard.But if recharge causes to locate it will cause salt accumulation
Reason load increase eventually leads to percolation liquid treating system collapse, and incinerator corrosion is likely to result in if returning spray incinerator.Cause
This, landfill leachate membranous system concentrate is treated as emphasis, the difficulties of puzzlement landfill leachate treatment.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of processing system for garbage filter concentrate zero-emission,
It, can not only by dish tubular type nanofiltration (DTNF) and the combination of ductwork type reverse osmosis (STRO) and evaporative crystallization and other techniques
It effectively realizes that the advanced treating of rubbish percolation liquid membrane concentrate realizes standard water discharge discharge, traditional house refuse can also be overcome
The drawbacks of percolation liquid membrane concentrate processing, really realize rubbish percolation liquid membrane concentrate zero discharge treatment.
To achieve the above object, the utility model provides a kind of processing system for garbage filter concentrate zero-emission
System, comprising: dish tubular type nanofiltration system, ductwork type counter-infiltration system, coagulation softening settling system, mechanical compression re-evaporation system,
Centrifugal dehydrator, frame dehydration machine and pretreatment conditioning tank；The entrance of the dish tubular type nanofiltration system inputs the reverse osmosis system
The concentrated solution of system, the separating liquid of the dish tubular type nanofiltration system are input to the ductwork type counter-infiltration system, and the dish tubular type is received
The concentrate of filter system, which is exported to the coagulation, softens settling system；The separating liquid of the ductwork type counter-infiltration system is up to standard defeated
Out, the concentrate of the ductwork type counter-infiltration system is exported to the mechanical compression re-evaporation system, and the mechanical compression is steamed again
The distillation supernatant output up to standard of hair system, the evaporation mother liquor of the mechanical compression re-evaporation system is after stiff tank crystallisation by cooling
To the centrifugal dehydrator, the liquid that the centrifugal dehydrator is isolated, which is exported to the coagulation, softens settling system for output；Institute
The sediment for stating coagulation softening settling system is exported to the frame dehydration machine, and the dehydrate output of the frame dehydration machine is filled out
It buries, the precipitating supernatant of the coagulation softening settling system, which is exported to the pretreatment conditioning tank, carries out circular treatment.
In the above-mentioned technical solutions, it is preferable that the mechanical compression re-evaporation system includes circulating and evaporating subsystem, stiff
Tank and soda acid absorption tower, the concentrate of the ductwork type counter-infiltration system output, which is input in the circulating and evaporating subsystem, to carry out
Forced-circulation evaporation, the distillate of circulating and evaporating subsystem output be input to the soda acid absorption tower carry out pickling alkali cleaning and
Ion exchange resin absorption, the soda acid absorption tower export the distillation supernatant, the steaming of the circulating and evaporating subsystem output
Hair mother liquor, which is exported to the stiff tank, carries out crystallisation by cooling, and the stiff tank exports evaporation mother liquor after cooling to the centrifugation
Dewaterer.
In the above-mentioned technical solutions, it is preferable that the crystal salt that the centrifugal dehydrator is isolated recycles or landfill, institute
The dewatered sediment of frame dehydration machine is stated to be filled.
In the above-mentioned technical solutions, it is preferable that the operating pressure of the dish tubular type nanofiltration system is 10bar~70bar, is returned
Yield is 75%~95%.
In the above-mentioned technical solutions, it is preferable that the operating pressure of the ductwork type counter-infiltration system is 10bar~90bar,
The rate of recovery is 80%~95%.
In the above-mentioned technical solutions, it is preferable that the dewatered precipitating water content of matter of the frame dehydration machine is less than 60%.
Compared with prior art, the utility model has the following beneficial effects: it is anti-by dish tubular type nanofiltration (DTNF) and ductwork type
The combination for permeating (STRO) and evaporative crystallization and other techniques, can not only effectively realize the depth of rubbish percolation liquid membrane concentrate
The drawbacks of standard water discharge discharge is realized in degree processing, and traditional consumer waste infiltration liquid film concentrate can also be overcome to handle, really
Realize the zero-emission of rubbish percolation liquid membrane concentrate.
Detailed description of the invention
Fig. 1 is a kind of knot of the disclosed processing system for the zero-emission of garbage filter concentrate of embodiment of the utility model
Structure schematic block diagram；
Fig. 2 is a kind of place of the disclosed processing system for the zero-emission of garbage filter concentrate of embodiment of the utility model
Manage schematic process flow diagram.
Corresponding relationship in figure, between each component and appended drawing reference are as follows:
10. being used for the processing system of garbage filter concentrate zero-emission, 11. dish tubular type nanofiltration systems, 12. ductwork type reverse osmosis
Permeable system, 13. coagulations softening settling system, 14. mechanical compression re-evaporation systems, 15. centrifugal dehydrators, 16. frame dehydration machines,
17. pre-processing conditioning tank.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is a part of the embodiment of the utility model, instead of all the embodiments.Based on the reality in the utility model
Apply example, those of ordinary skill in the art's every other embodiment obtained without making creative work, all
Belong to the range of the utility model protection.
The utility model is further described in detail with reference to the accompanying drawing:
As depicted in figs. 1 and 2, according to a kind of processing for garbage filter concentrate zero-emission provided by the utility model
System 10, comprising: dish tubular type nanofiltration system 11, ductwork type counter-infiltration system 12, coagulation softening settling system 13, mechanical compression are again
Vapo(u)rization system 14, centrifugal dehydrator 15, frame dehydration machine 16 and pretreatment conditioning tank 17；The entrance of dish tubular type nanofiltration system 11 is defeated
Enter the concentrated solution of counter-infiltration system, the separating liquid of dish tubular type nanofiltration system 11 is input to ductwork type counter-infiltration system 12, dish tubular type
The concentrate of nanofiltration system 11, which is exported to coagulation, softens settling system 13；The separating liquid of ductwork type counter-infiltration system 12 is up to standard defeated
Out, the concentrate of ductwork type counter-infiltration system 12 is exported to mechanical compression re-evaporation system 14, mechanical compression re-evaporation system 14
The output up to standard of distillation supernatant, the evaporation mother liquor of mechanical compression re-evaporation system 14 exports to centrifugal dehydrator 15, and centrifugation is de-
The liquid that water dispenser 15 is isolated, which is exported to coagulation, softens settling system 13；The sediment of coagulation softening settling system 13 is exported to plate
Frame dewaterer 16, the dehydrate of frame dehydration machine 16 export landfill, the precipitating supernatant of coagulation softening settling system 13 export to
It pre-processes conditioning tank 17 and carries out circular treatment.
In this embodiment, specifically, dish tubular type nanofiltration (DTNF) system by cartridge filter, intake pump, booster pump, receive
Filter membrane component, dosing and cleaning system composition, pretreatment system can also be added according to specific water quality situation prevents blocking membranous system.
Landfill leachate reverse osmosis concentrated liquid is pumped into dish tubular type nanofiltration system 11 (DTNF), is made by the selective penetrated property of nanofiltration membrane
With removal most COD and divalent salts realize the separation of a divalent salts in waste water, prevent divalent salt accumulation from blocking subsequent reverse osmosis
Permeable membrane and evaporation and crystallization system fouling blockage.Secondly, macromolecular organic pollutant is retained by nanofiltration membrane, it is heavy finally by coagulation
The form in shallow lake is removed.DTNF system is by cartridge filter, intake pump, booster pump, nanofiltration membrane component, dosing and cleaning system
Composition.DTNF system is to guarantee normal operation, need to add antisludging agent and reducing agent, and periodic cleaning is to prevent film dirt stifled.
The production water of DTNF system still has possibility not up to standard, therefore DTNF water outlet pipe net formula is reverse osmosis (STRO)
The water inlet of system, by ductwork type reverse osmosis (STRO), further removal system produces monovalent salt and small molecule COD, NH4- in water
N, the pollutants such as TP are realized and produce water qualified discharge.STRO system is by cartridge filter, intake pump, booster pump, reverse osmosis membrane group
Part, dosing and cleaning system composition.Reverse osmosis (STRO) system of ductwork type, with membrane area is big, resistant degree performance is good, skid-mounted type
The advantages that being moved easily.
In the above embodiment, it is preferable that mechanical compression re-evaporation system 14 include circulating and evaporating subsystem, stiff tank and
Soda acid absorption tower, the concentrate that ductwork type counter-infiltration system 12 exports are input to progress forced circulation steaming in circulating and evaporating subsystem
Hair, the distillate of circulating and evaporating subsystem output are input to soda acid absorption tower and carry out pickling alkali cleaning and ion exchange resin absorption,
Soda acid absorption tower output distillation supernatant, the evaporation mother liquor of circulating and evaporating subsystem output export to stiff tank and carry out cooling knot
Crystalline substance, stiff tank export evaporation mother liquor after cooling to centrifugal dehydrator 15.
Specifically, mechanical compression re-evaporation (MVR) uses forced-circulation evaporation system, and system is by vapour compression machine, pressure
The compositions such as circulating pump, heat exchanger, heating room, stiff tank, pickling caustic washing system.Reverse osmosis (STRO) concentrated water of ductwork type is followed into pressure
Ring vapo(u)rization system realizes that produce water is discharged in the form of distilled water, pollutant and salinity by the evaporation of forced-circulation evaporation system
Accumulation, until reach hypersaturated state realize crystallization.Forced-circulation evaporation system distilled water is through soda acid absorption tower or pickling tower
And caustic wash tower, the small organic molecule in distilled water react removal organic matter, ammonia nitrogen and dilute sulphur in distilled water with sodium hydroxide
Acid generates reaction and ultimately forms ammonium sulfate crystallization recycling.Distilled water is after pickling alkali cleaning absorption tower is handled, then through ion exchange system
System (resin) further adsorbs pollutant, guarantees vapo(u)rization system standard water discharge.
It is separated by solid-liquid separation in the above embodiment, it is preferable that evaporating mother liquor in stiff tank and being sent into centrifugal dehydrator 15, it is real
Existing inorganic salts recycling.The crystal salt that centrifugal dehydrator 15 is isolated recycles or landfill, and supernatant is sent into coagulation softening precipitating
System 13 is handled, and further SS (suspend solid, solid suspension) and other macromoleculars have in removal evaporation mother liquor
Machine pollutant.The dewatered sediment of frame dehydration machine 16 is filled.
In the above-described embodiments, dish tubular type nanofiltration (DTNF) concentrate and centrifuge supernatant enter coagulation softening precipitating system
In system 13, the operation of coagulation melded system need to add sodium hydroxide first and adjust PH to 10-11.5, then add sodium carbonate and other gold
Belong to precipitating reagent and remove divalent salts, prevent membranous system fouling and blocking, calcium ions and magnesium ions therein generate calcium carbonate, calcium sulfate and hydrogen-oxygen
Change magnesium precipitate, the flocculants such as PAC/PAM/PFS are then added, is discharged into high-efficiency clarifier after flocculation, passes through the mud of high-efficiency clarifier
Water centrifugation, as far as possible raising organic removal rate, the removal of hardness and pollutant is realized through precipitating.Coagulation softening precipitating system
The sludge of 13 discharge of system contains certain Mg (OH)2, it is therefore desirable to it is separated by solid-liquid separation using frame dehydration machine 16, and by sludge
Moisture content is reduced to 60% hereinafter, carrying out innoxious landfill.
The precipitating supernatant of coagulation softening settling system 13 can be back to pretreatment conditioning tank 17 and carry out circular treatment,
It can be combined with other ozone, Fenton and photocatalysis oxidation technique, further remove pollutant, reduce the subsequent place of system
Manage load.
In the above embodiment, it is preferable that the operating pressure of dish tubular type nanofiltration system 11 can be adjusted to 10bar~70bar, return
Yield is 75%~95%.
In the above embodiment, it is preferable that the operating pressure of ductwork type counter-infiltration system 12 is 10bar~90bar, recycling
Rate is 80%~95%.
In the above embodiment, it is preferable that the dewatered precipitating water content of matter of frame dehydration machine 16 is less than 60%, then
Sludge landfill is sent to fill in dewatered sediment sludge.
The above be the embodiments of the present invention, according to the utility model proposes be used for garbage filter concentrate
The processing system of zero-emission passes through dish tubular type nanofiltration (DTNF) and ductwork type reverse osmosis (STRO) and evaporative crystallization and other works
The combination of skill can not only effectively realize that the advanced treating of rubbish percolation liquid membrane concentrate realizes standard water discharge discharge, can be with
The drawbacks of overcoming traditional consumer waste infiltration liquid film concentrate to handle really realizes that rubbish percolation liquid membrane concentrate realizes zero-emission
It puts.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of processing system for garbage filter concentrate zero-emission, dense to the reverse osmosis diafiltration of reverse osmosis membrane system output
Contracting liquid is handled characterized by comprising dish tubular type nanofiltration system, ductwork type counter-infiltration system, coagulation softening precipitating system
System, mechanical compression re-evaporation system, centrifugal dehydrator, frame dehydration machine and pretreatment conditioning tank；
The entrance of the dish tubular type nanofiltration system inputs the concentrated solution of the counter-infiltration system, point of the dish tubular type nanofiltration system
Chaotropic is input to the ductwork type counter-infiltration system, and the concentrate of the dish tubular type nanofiltration system exports heavy to coagulation softening
Shallow lake system；
The separating liquid output up to standard of the ductwork type counter-infiltration system, the concentrate of the ductwork type counter-infiltration system are exported to institute
State mechanical compression re-evaporation system, the distillation supernatant output up to standard of the mechanical compression re-evaporation system, the mechanical compression
The evaporation mother liquor of re-evaporation system is exported to the centrifugal dehydrator, and the liquid that the centrifugal dehydrator is isolated is exported to described
Coagulation softens settling system；
The sediment of the coagulation softening settling system is exported to the frame dehydration machine, and the dehydrate of the frame dehydration machine is defeated
It fills out, the precipitating supernatant of the coagulation softening settling system, which is exported to the pretreatment conditioning tank, carries out circular treatment.
2. the processing system according to claim 1 for the zero-emission of garbage filter concentrate, which is characterized in that the machine
It includes circulating and evaporating subsystem, stiff tank and soda acid absorption tower that tool, which compresses re-evaporation system, and the ductwork type counter-infiltration system is defeated
Concentrate out, which is input in the circulating and evaporating subsystem, carries out forced-circulation evaporation, the circulating and evaporating subsystem output
Distillate is input to the soda acid absorption tower and carries out pickling alkali cleaning and ion exchange resin absorption, and the soda acid absorption tower exports institute
Distillation supernatant is stated, the evaporation mother liquor of the circulating and evaporating subsystem output, which is exported to the stiff tank, carries out crystallisation by cooling, institute
Stiff tank is stated to export evaporation mother liquor after cooling to the centrifugal dehydrator.
3. the processing system according to claim 1 for the zero-emission of garbage filter concentrate, which is characterized in that it is described from
The crystal salt that heart dewaterer is isolated recycles or landfill, the dewatered sediment of frame dehydration machine are filled.
4. the processing system according to claim 1 for the zero-emission of garbage filter concentrate, which is characterized in that the dish
The operating pressure of tubular type nanofiltration system is 10bar~70bar, and the rate of recovery is 75%~95%.
5. the processing system according to claim 1 for the zero-emission of garbage filter concentrate, which is characterized in that the pipe
The operating pressure of net formula counter-infiltration system is 10bar~90bar, and the rate of recovery is 80%~95%.
6. the processing system according to claim 1 for the zero-emission of garbage filter concentrate, which is characterized in that the plate
The dewatered precipitating water content of matter of frame dewaterer is less than 60%.
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| CN201821384977.8U CN208684674U (en) | 2018-08-27 | 2018-08-27 | Processing system for garbage filter concentrate zero-emission |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111018156A (en) * | 2019-12-24 | 2020-04-17 | 常熟浦发第二热电能源有限公司 | Garbage leachate shunting treatment method |
| CN112225372A (en) * | 2020-09-17 | 2021-01-15 | 广东闻扬环境科技有限公司 | Landfill leachate wastewater treatment system and treatment method |
| CN112266134A (en) * | 2020-10-27 | 2021-01-26 | 逸辰环保科技(厦门)有限公司 | Full-scale treatment system and process for landfill leachate |
-
2018
- 2018-08-27 CN CN201821384977.8U patent/CN208684674U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111018156A (en) * | 2019-12-24 | 2020-04-17 | 常熟浦发第二热电能源有限公司 | Garbage leachate shunting treatment method |
| CN112225372A (en) * | 2020-09-17 | 2021-01-15 | 广东闻扬环境科技有限公司 | Landfill leachate wastewater treatment system and treatment method |
| CN112225372B (en) * | 2020-09-17 | 2021-11-23 | 广东闻扬环境科技有限公司 | Landfill leachate wastewater treatment system and treatment method |
| CN112266134A (en) * | 2020-10-27 | 2021-01-26 | 逸辰环保科技(厦门)有限公司 | Full-scale treatment system and process for landfill leachate |
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