CN209128261U - A kind of landfill leachate treatment Zero discharging system - Google Patents
A kind of landfill leachate treatment Zero discharging system Download PDFInfo
- Publication number
- CN209128261U CN209128261U CN201821836104.6U CN201821836104U CN209128261U CN 209128261 U CN209128261 U CN 209128261U CN 201821836104 U CN201821836104 U CN 201821836104U CN 209128261 U CN209128261 U CN 209128261U
- Authority
- CN
- China
- Prior art keywords
- tank
- landfill leachate
- mbr
- reverse osmosis
- leachate treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a kind of landfill leachate treatment Zero discharging system, including sequentially connected primary sedimentation tank, conditioning tank, hydrolysis acidification pool, UASB reactor, A/O-MBR system, MBR film water producing tank, nanofiltration device, nanofiltration fresh water water producing tank, electrodialysis system, electrodialysis fresh water case and RO reverse osmosis unit, the output end of the RO reverse osmosis unit is connect with reverse osmosis concentrated water tank and reverse osmosis freshwater case respectively.The utility model uses the treatment process of " primary sedimentation tank → conditioning tank → hydrolysis acidification pool → high efficiency anaerobic reactor → A/O-MBR system → NF system → electrodialysis → RO system ", organic matter and ammonia nitrogen in the percolate that can effectively degrade；With electrodialytic frequently pole-reversing system, it is able to achieve equipment with high desalinization；The concentrated water minimizing system combined by chemical tendering and film, reduces the hardness of concentrate, improves the overall rate of recovery；Integrated artistic processing cost is low, small investment, stable, strong operability, realizes landfill leachate treatment zero-emission.
Description
Technical field
The utility model relates to a kind of landfill leachate treatment Zero discharging systems.
Background technique
Currently, landfill leachate has the characteristics that high organic concentration, high ammonia nitrogen, high saliferous rate, therefore it is effectively located
Reason is always the difficult point of domestic and international field of water treatment.The mainstream technology of country's landfill leachate treatment is " at pretreatment+biochemistry at present
Oxidation of coal (removal of organic matter) process and nitrifying process occur mainly in aerobic section for the technique of reason+advanced treating ", so
Nitrification mixed liquor is back to anoxic section and carries out anti-nitration reaction afterwards, completes nitration denitrification denitrogenation process；And utilize MBR film biology
Reactor is further processed, the use of membrane separation technique, so that sludge concentration with higher in processing system, it can be more effective
Go water removal in organic matter；Simultaneously because the extension of sludge retention time, is conducive to build up a large amount of nitre in reactor
Change bacterium and denitrifying bacterium, ammonia nitrogen is made to reach removal more thoroughly.
But industry water reuse standard is not achieved in the salinity in MBR water outlet, therefore need to carry out advanced treating to water outlet.It is common
Advanced treatment process be nanofiltration or reverse osmosis technology, but nanofiltration and the reverse osmosis combination technique purified water rate of recovery are low, generally
The rate of recovery causes concentrated water water larger less than 75%, and consumption is difficult；And inorganic salts are only risen using nanofiltration/reverse osmosis process
To concentrated effect, salinity is constantly enriched in reaction system, is not effectively removed.Separately there is a kind of further treatment technique to use DTRO/
STRO technique is able to ascend the rate of recovery, but needs to be pressurized during the technical treatment, so that system design cost improves.
Therefore, it is necessary to a kind of desalination rate height, the water outlet rate of recovery is high, operating cost is low, small investment landfill leachate treatment
Technique of zero discharge.
Utility model content
The utility model aim is to provide a kind of landfill leachate treatment zero-emission system in view of the defects existing in the prior art
System, using " primary sedimentation tank → conditioning tank → hydrolysis acidification pool → UASB reactor → A/O-MBR system → NF system → electrodialysis →
The treatment process of RO system " improves landfill leachate treatment efficiency；Pass through the group of electrodialysis system and concentrated water minimizing system
It closes, the rate of recovery of final outflow water can be improved, reach zero-emission effect, and salt rejection rate is higher.The utility model process operation expense
Low, small investment, desalination rate are high, the water outlet rate of recovery is high, can be realized landfill leachate zero-emission.
The utility model to achieve the above object, adopts the following technical scheme that a kind of landfill leachate treatment zero-emission system
System, including sequentially connected primary sedimentation tank, conditioning tank, hydrolysis acidification pool, UASB reactor, A/O-MBR system, MBR film water producing tank,
Nanofiltration device, nanofiltration fresh water water producing tank, electrodialysis system, electrodialysis fresh water case and RO reverse osmosis unit, the reverse osmosis dress of RO
The output end set is connect with reverse osmosis concentrated water tank and reverse osmosis freshwater case respectively.
Further, the UASB reactor is upflow anaerobic sludge blanket reactor.
Further, the A/O-MBR system includes denitrification pond, nitrification tank and MBR membrane cisterna, the nitrification tank and MBR
Membrane cisterna is provided with blast aerator；The nitrification liquid of the nitrification tank flows back into denitrification pond and carries out anti-nitration reaction, the MBR
Sludge reflux in membrane cisterna supplements biomass into the nitrification tank.
Further, the A/O-MBR system is built-in membrane bio-reaction system, using special PTFE hollow-fibre membrane
Component.
Further, the electrodialysis system uses frequently pole-reversing electroosmosis (EDR) system, the frequently pole-reversing electroosmosis
(EDR) system is made of electrodialysis ontology, rectifier and automatic electrode systems.
Further, concentrate a part of the RO reverse osmosis unit enters the further desalination of the electrodialysis system,
A part and the NF concentrate of nanofiltration concentrated water case discharge carry out concentrated water minimizing processing together.
It further, further include that the concentrated water handled the concentrate in the nanofiltration device and RO reverse osmosis unit subtracts
Quantization system.
Further, the excess sludge of the UASB reactor, nitrification tank and MBR membrane cisterna squeezes into dirt by sludge pipe together
Mud sump carries out sludge condensation, and dehydration clear liquid, which enters, uses mixedly pond.
Further, the exhaust system be hermetically sealed setting, by axial flow blower to conditioning tank, sludge-tank and nitrification,
Denitrification pond is taken a breath, and the foul smell in system is introduced into the primary air fan inlet in garbage warehouse using negative pressure.
Further, it is additionally provided in the A/O-MBR system and adds alkali medicine-chest and acid adding medicine-chest.
The beneficial effects of the utility model are as follows:
(1) the utility model uses " primary sedimentation tank → conditioning tank → hydrolysis acidification pool → high efficiency anaerobic reactor → A/O-MBR
The treatment process of system → NF system → electrodialysis → RO system ", organic matter and ammonia nitrogen in the percolate that can effectively degrade, out
Water water quality is good.
(2) after A/O biochemical treatment, mud-water separation is further processed and realized into MBR system, effectively realizes that sludge is cut
It stays, biochemistry pool sludge concentration is high, increases substantially treatment effeciency；Higher sludge concentration makes integrated artistic take up an area face simultaneously
Product is small, and operating cost is low.
(3) electrodialysis concentrated water conductivity is much higher than DTRO technique concentrated water conductivity, and desalination effect is good, and the rate of recovery is high.
(4) chemical tendering and dual-membrane process concentrated water reduction process are used, concentrate hardness is reduced, reaches desalination and mentions
The effect of the high totality rate of recovery.
(5) whole technique of zero discharge processing cost is low, and stable, controllability is strong.
Detailed description of the invention
Fig. 1 is the utility model garbage leachate treatment process flow diagram.
Fig. 2 is the structural schematic diagram of the utility model garbage leachate treatment process.
Specific embodiment
Shown in Fig. 1, Fig. 2, it is related to a kind of landfill leachate treatment Zero discharging system, including sequentially connected primary sedimentation tank 2, tune
Save pond 26, hydrolysis acidification pool 3, UASB reactor 5, A/O-MBR system, MBR film water producing tank 11, nanofiltration device 14, nanofiltration fresh water
Water producing tank 15, electrodialysis system 17, electrodialysis fresh water case 20 and RO reverse osmosis unit 21, the output of the RO reverse osmosis unit 21
End is connect with reverse osmosis concentrated water tank 22 and reverse osmosis freshwater case 23 respectively.
High efficiency anaerobic reactor 5 is upflow anaerobic sludge blanket reactor.A/O-MBR system includes denitrification pond 8, nitrification
Pond 9, MBR membrane cisterna 10, nitrification tank 9 and MBR membrane cisterna 10 are provided with blast aerator 7.9 nitrification liquid of nitrification tank flows back into denitrification
Pond 8 carries out anti-nitration reaction, and 10 sludge reflux of MBR membrane cisterna supplements biomass into nitrification tank 9.
MBR membrane cisterna 10 is built-in membrane bio-reaction system, using special PTFE hollow fiber film assembly.MBR membrane cisterna holds
Product load is high, and occupied area is small, high to hardly degraded organic substance and ammonia nitrogen removal frank, combines with A/O biochemical system, effluent quality is remote
It is much better than traditional biological treatment process.
Electrodialysis system 17 uses frequently pole-reversing electroosmosis (EDR) system, by electrodialysis ontology, rectifier and automatic pole
System composition.EDR system is according to the principle of ED system, in a certain time interval (15-20 minutes), by by electrodialysis system
The positive electrode of system, the polarity of negative electrode are mutually switched, to reach the mesh of the dirt of automatic cleaning amberplex and electrode surface
, guarantee that the efficiency of amberplex is steady in a long-term and ensures the water quality and quantity of fresh water, the rate of recovery and salt rejection rate are high.
Concentrate a part of the reverse osmosis concentrated water tank 22 of RO enters the further desalination of electrodialysis system 17, a part and nanofiltration
The NF concentrate of concentrated water case carries out concentrated water minimizing processing together.
It further include at the concentrate in the nanofiltration device and RO reverse osmosis unit in the system of the utility model
The concentrated water minimizing system of reason, the technology mode which uses are as follows: chemical tendering, ultrafiltration and reverse osmosis process
Mode can be further processed concentrate by the technology mode, improve the overall rate of recovery, be zero-emission indispensable one
Part.This part content is the prior art, therefore concentrated water minimizing system is not described in detail in the application.
In the utility model, the excess sludge of UASB reactor 5, nitrification tank 9 and MBR membrane cisterna 10 is beaten together by sludge pipe
Enter sludge-tank and carry out sludge condensation, dehydration clear liquid, which enters, uses mixedly pond.
All structures are all hermetically sealed in Tthe utility model system, by axial flow blower to conditioning tank 26, sludge-tank and
All structures such as nitrification tank 9, denitrification pond 8 are taken a breath, and the foul smell in all structures is introduced garbage warehouse using negative pressure
In primary air fan inlet, avoid foul smell from leaking.
The process flow of the utility model is as follows:
Landfill leachate enters primary sedimentation tank 2 from water inlet pipe 1, removes bulky grain floating material, then flows into conditioning tank 26 certainly, into
Row homogeneous average and certain hydrolysis acidification is carried out, conditioning tank 26 is discharged boosted pump and enters anaerobic reactor 5, removes big portion
The organic matter divided, the biogas of generation are discharged into marsh gas treating system through collecting methane pipe 6；Anaerobic effluent squeezes into hydrolysis by pump 4
Acidification pool 3, hydrolysis acidification pool water outlet 3 enter A/O-MBR system by elevator pump, in nitrification tank 9 and denitrification pond 8, pass through
The vital movements such as the metabolism of microorganism remove most COD in water removalCr、BOD、NH3The pollutants such as-N, biochemical system go out
Water enters MBR membrane cisterna 10 and is further processed and carries out mud-water separation；The water outlet of MBR membrane cisterna 10 enters (the i.e. NF system of nanofiltration device 14
System), the water outlet of NF system enters nanofiltration fresh water water producing tank 15, and nanofiltration concentrate enters nanofiltration concentrated water case 16, nanofiltration fresh water water producing tank
15 water outlets enter electrodialysis system 17, and pole is constantly recycled down by electrodialysis and achievees the purpose that desalination, electrodialysis water outlet enters
Electrodialysis fresh water case 20, the water outlet of electrodialysis fresh water case 20 enters the further desalination of RO reverse osmosis unit 21, while removing COD, ammonia
The substances such as nitrogen, water outlet reach reuse standard；The concentrate that RO reverse osmosis unit 21 generates enters reverse osmosis concentrated water tank 22, reverse osmosis
Water outlet enters reverse osmosis freshwater case 23, and the water outlet of reverse osmosis freshwater case 23 is connect with system outlet pipe 24.Wherein, into RO reverse osmosis
Concentrate a part of saturating concentrated water case 22 enters electrodialysis and continues desalination to improve the water outlet rate of recovery, another part concentrate and receives
The NF concentrate of filter concentrated water case 16 enters concentrated water minimizing system removal hardness together, achievees the purpose that no concentrate outlet, most
Whole integrated artistic realizes landfill leachate zero-emission.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of landfill leachate treatment Zero discharging system, which is characterized in that including sequentially connected primary sedimentation tank, conditioning tank, water
Solve acidification pool, UASB reactor, A/O-MBR system, MBR film water producing tank, nanofiltration device, nanofiltration fresh water water producing tank, electrodialysis system
System, electrodialysis fresh water case and RO reverse osmosis unit, the output end of the RO reverse osmosis unit is respectively with reverse osmosis concentrated water tank and instead
Permeate fresh-water tank connection.
2. a kind of landfill leachate treatment Zero discharging system as described in claim 1, which is characterized in that the UASB reactor
For upflow anaerobic sludge blanket reactor.
3. a kind of landfill leachate treatment Zero discharging system as described in claim 1, which is characterized in that the A/O-MBR system
System includes denitrification pond, nitrification tank and MBR membrane cisterna, and the nitrification tank and MBR membrane cisterna are provided with blast aerator；The nitrification
The nitrification liquid in pond flows back into denitrification pond and carries out anti-nitration reaction, and the sludge reflux in the MBR membrane cisterna is mended into the nitrification tank
Fill biomass.
4. a kind of landfill leachate treatment Zero discharging system as described in claim 1, which is characterized in that the A/O-MBR system
System is built-in membrane bio-reaction system, using special PTFE hollow fiber film assembly.
5. a kind of landfill leachate treatment Zero discharging system as described in claim 1, which is characterized in that the electrodialysis system
Using frequently pole-reversing electroosmosis (EDR) system, frequently pole-reversing electroosmosis (EDR) system by electrodialysis ontology, rectifier and
The automatic composition of falling electrode systems.
6. a kind of landfill leachate treatment Zero discharging system as described in claim 1, it is characterised in that: the reverse osmosis dress of RO
The concentrate a part set enters the further desalination of the electrodialysis system, the NF concentrate of a part and the discharge of nanofiltration concentrated water case
Concentrated water minimizing processing is carried out together.
7. a kind of landfill leachate treatment Zero discharging system as described in claim 1, it is characterised in that: further include being received to described
The concentrated water minimizing system that concentrate in filter device and RO reverse osmosis unit is handled.
8. a kind of landfill leachate treatment Zero discharging system as described in claim 1, it is characterised in that: the UASB reaction
Excess sludge in device, nitrification tank and MBR membrane cisterna squeezes into sludge-tank by sludge pipe together and carries out sludge condensation, dehydration clear liquid into
Enter to use mixedly pond.
9. a kind of landfill leachate treatment Zero discharging system as described in claim 1, it is characterised in that: the exhaust system is
Hermetically sealed setting takes a breath to conditioning tank, sludge-tank and nitrification, denitrification pond by axial flow blower, and will be using negative pressure
Foul smell in system is introduced into the primary air fan inlet in garbage warehouse.
10. a kind of landfill leachate treatment Zero discharging system as described in claim 1, it is characterised in that: the A/O-MBR system
It is additionally provided in system and adds alkali medicine-chest and acid adding medicine-chest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821836104.6U CN209128261U (en) | 2018-11-08 | 2018-11-08 | A kind of landfill leachate treatment Zero discharging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821836104.6U CN209128261U (en) | 2018-11-08 | 2018-11-08 | A kind of landfill leachate treatment Zero discharging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209128261U true CN209128261U (en) | 2019-07-19 |
Family
ID=67244313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821836104.6U Active CN209128261U (en) | 2018-11-08 | 2018-11-08 | A kind of landfill leachate treatment Zero discharging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209128261U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231713A (en) * | 2018-11-08 | 2019-01-18 | 浙江滨盛环境科技有限公司 | A kind of landfill leachate treatment Zero discharging system |
| CN112159030A (en) * | 2020-09-11 | 2021-01-01 | 郑州绿清环保科技有限公司 | Novel leachate treatment system |
-
2018
- 2018-11-08 CN CN201821836104.6U patent/CN209128261U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231713A (en) * | 2018-11-08 | 2019-01-18 | 浙江滨盛环境科技有限公司 | A kind of landfill leachate treatment Zero discharging system |
| CN112159030A (en) * | 2020-09-11 | 2021-01-01 | 郑州绿清环保科技有限公司 | Novel leachate treatment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109231713A (en) | A kind of landfill leachate treatment Zero discharging system | |
| CN103641272B (en) | High concentrated organic wastewater and percolate zero-discharge treatment system | |
| CN102976566B (en) | System and method for treating high-concentration landfill leachate in aerobic composting site | |
| CN206767868U (en) | A kind of garbage percolation liquid treating system | |
| CN102531298A (en) | Sewage treatment device and method for enhanced denitrification A/A/O (Anodic Aluminum Oxide) and deoxygenation BAF (Biological Aerated Filter) | |
| CN106219752B (en) | A kind of control membrane fouling method during landfill leachate treatment | |
| CN102115297A (en) | Double-reflux denitrification membrane-bioreactor (MBR) process for treating dry acrylic fiber waste water | |
| CN106219884A (en) | The processing method of high ammonia nitrogen landfill leachate | |
| CN204058193U (en) | A kind of garbage percolation liquid treating system | |
| CN109607965A (en) | A kind of system and method for sewage treatment plant tail water advanced nitrogen dephosphorization | |
| CN209128261U (en) | A kind of landfill leachate treatment Zero discharging system | |
| CN211141811U (en) | Landfill leachate's positive osmotic treatment system | |
| CN204079721U (en) | A kind of sewage disposal device adopting pure oxygen aeration and remaining oxygen reuse | |
| CN205347102U (en) | Degree of depth processing system of direct liquefaction of coal sewage | |
| CN113264586A (en) | MBR (membrane bioreactor) process for treating nitrate wastewater | |
| CN108341556A (en) | A kind of advanced treatment of wastewater and the system and method for acid-basic regenerated waste liquids in water reuse | |
| CN202089871U (en) | Integrated equipment for advanced treatment of printing and dyeing wastewater by applying microbial technology | |
| CN209778569U (en) | Old garbage landfill leachate treatment system | |
| CN101391833A (en) | Filter tank type membrane bioreactor | |
| CN205710287U (en) | One way of life sewage disposal system | |
| CN212174737U (en) | Integrated treatment system for zero discharge of domestic garbage sewage | |
| CN212403883U (en) | Wastewater treatment equipment | |
| CN210176666U (en) | Domestic waste filtration liquid high efficiency treatment all-in-one | |
| CN211445406U (en) | Landfill leachate treatment device | |
| CN211644970U (en) | Spices waste water desalination system based on electrodialysis technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |