CN208327721U - A kind of processing unit of landfill leachate - Google Patents
A kind of processing unit of landfill leachate Download PDFInfo
- Publication number
- CN208327721U CN208327721U CN201820599765.5U CN201820599765U CN208327721U CN 208327721 U CN208327721 U CN 208327721U CN 201820599765 U CN201820599765 U CN 201820599765U CN 208327721 U CN208327721 U CN 208327721U
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- Prior art keywords
- reflux line
- forward osmosis
- osmosis membrane
- landfill leachate
- processing unit
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a kind of processing units of landfill leachate, including pretreatment unit, conditioning tank, sedimentation basin, sludge reaction device, forward osmosis membrane bioreactor and the nanofiltration membrane system being sequentially communicated.The pretreatment unit is equipped with one for bulky grain floating material or suspended matter to be transferred to the recovery channel of refuse landfill.A concentrate reflux line is equipped with above the forward osmosis membrane bioreactor, the concentrate reflux line is connected to conditioning tank.Having the beneficial effect that for the utility model can efficiently remove the polluters such as organic matter, inorganic salts, heavy metal, effluent characteristics are high-quality, and forward osmosis membrane bioreactor has that contaminated degree is low, low power consumption and other advantages, can save operating cost while guaranteeing effluent characteristics.
Description
Technical field
The utility model relates to sewage treatment field, in particular to a kind of processing unit of landfill leachate.
Background technique
Landfill leachate be it is a kind of containing high organic concentration, high salinity, high heavy metal concentration complicated waste water, treatment process
Process is more and cost is big.Process flow have including grid, film filtering, precipitating etc. including pretreating process, SBR, UASB,
End-o f-pipe -control technique including advanced treatment process and reverse osmosis, positive infiltration, nanofiltration including DTOR, MBR etc. etc..
Advanced treatment process mostly uses greatly Anaerobic Treatment+MBR combination process.Compared with many biological water treatment technologies, MBR
Suspended matter and turbidity are had the advantage that close to zero, bacterium and virus are significantly removed, effluent quality high-quality stable；It should
Technique can be run under high volumetric loading, low sludge loading, and excess sludge production is few；High concentration can be maintained in bioreactor
Microbial biomass.Occupied area is small, is not limited by place；It can remove ammonia nitrogen and hardly degraded organic substance；In terms of operational administrative, it is easy to real
Now automatically control.But there is also many disadvantages for MBR technique: film cost is high, so that the capital expenditure of MBR is higher than at traditional wastewater
Science and engineering skill；Fouling membrane is easy to appear, and is made troubles to operational administrative；Energy consumption is high, and MBR mud-water separation process must keep certain
Film driving force leads to operating cost height.
Summary of the invention
In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of processing units of landfill leachate, using just
Permeable membrane replaces microfiltration membranes or ultrafiltration membrane in tradition MBR technique, by the efficient cutoff performance of forward osmosis membrane, effluent quality
More preferably, reuse can directly be carried out.Forward osmosis membrane does not need outer blooming driving force, by the infiltration drawn between liquid and material liquid
Pressure difference completes filtering.
To achieve the goals above, the technical solution adopted in the utility model is as follows:
A kind of processing unit of landfill leachate, including pretreatment unit, conditioning tank, sedimentation basin, the sludge being sequentially communicated
Reaction unit, forward osmosis membrane bioreactor and nanofiltration membrane system.The pretreatment unit is used for equipped with one will be big
Particles float object or suspended matter are transferred to the recovery channel of refuse landfill.It is equipped with above the forward osmosis membrane bioreactor
One concentrate reflux line, the concentrate reflux line are connected to conditioning tank.
Further, the rear end of the nanofiltration membrane system connects thermal release reactor, the thermal release reaction
Device is equipped with and seals the first reflux line and the second reflux line being connected to, first reflux line and forward osmosis membrane with it
Bioreactor connection, second reflux line are connected to refuse landfill.
Further, the sludge reaction device includes UASB reactor and sbr reactor device, the UASB reactor
Front end is connected with sedimentation basin, and the rear end of the UASB reactor is connected with sbr reactor device, the rear end of the sbr reactor device
It is connected with forward osmosis membrane bioreactor.
Further, the pretreatment unit includes coarse rack and fine fack.
Wherein, the grid distance of the coarse rack is 60-80mm.
Wherein, the grid distance of the fine fack is 4-8mm.
The utility model has the following beneficial effects: 1, using forward osmosis membrane bioreactor as landfill leachate depth
One link of processing, does not need outer blooming driving force relative to traditional membrane bioreactor, can reduce operating cost, simplifies
Operating process.Forward osmosis membrane is not easy to pollute simultaneously, reduces cost of investment without frequent clean or replacement film, more manageability；2, will
After the sodium chloride diluting solution that forward osmosis membrane bioreactor excludes removes remaining pollutant by nanofiltration, thermal release is carried out
Sodium chloride and water are respectively obtained, reuse can be distinguished to forward osmosis membrane bioreactor and refuse landfill, reduce cost；3, it uses
Reasonable garbage leachate treatment process, by grid, conditioning tank, precipitating, UASB, SBR, forward osmosis membrane bioreactor and
Nanofiltration membrane system can efficiently remove the various poisonous and harmful substances including organic matter, inorganic salts, heavy metal, microorganism etc.,
And producing water ratio is high, producing water water quality is good.
Detailed description of the invention
Fig. 1 is the principles of the present invention schematic diagram.
Primary clustering symbol description: 1, pretreatment unit；2, conditioning tank；3, sedimentation basin；4, UASB reactor；5, SBR is anti-
Answer device；6, forward osmosis membrane bioreactor；61, concentrate reflux line；7, nanofiltration membrane system；8, thermal release reactor；
81, the first reflux line；82, the second reflux line.
Specific embodiment
With reference to the accompanying drawings and detailed description, the utility model is described further.
As shown in Figure 1, a kind of processing unit of landfill leachate, including be sequentially communicated pretreatment unit 1, conditioning tank 2,
Sedimentation basin 3, UASB reactor 4, sbr reactor device 5, forward osmosis membrane bioreactor 6, nanofiltration membrane system 7 and thermal release are anti-
Answer device 8.Pretreatment unit 1 is equipped with one for bulky grain floating material or suspended matter to be transferred to the recovery tube of refuse landfill 9
Road 11, pretreatment unit 1 include coarse rack and fine fack, and the grid distance of coarse rack is 70mm, and the grid distance of fine fack is
6mm.A concentrate reflux line 61 is equipped with above forward osmosis membrane bioreactor 6, concentrate reflux line 61 and conditioning tank 2 connect
It is logical.Thermal release reactor 8 is equipped with and seals the first reflux line 81 and the second reflux line 82 being connected to, the first return pipe with it
Road 81 is connected to forward osmosis membrane bioreactor 6, and the second reflux line 82 is connected to refuse landfill 9.
When specifically used, the processing unit of landfill leachate described in the utility model is main for handling landfill leachate
Include the following steps:
Step 1: the grid that the landfill leachate come out from refuse landfill 9 is different by thickness twice, removal is more substantially
The floating material and suspended matter of long-pending pollutant, larger particles；
Step 2: conditioning tank 2 is entered by the landfill leachate after grid, meanwhile, subsequent forward osmosis membrane biological respinse
Concentrate in device 6 is back to conditioning tank 2 by concentrate reflux line 61, adjusts the pH value, water quality and water of landfill leachate
Amount, in case the high-quality operation of subsequent technique；
Step 3: entering sedimentation basin 3 by the landfill leachate after conditioning tank 2, precipitated by gravity, by garbage filter
The floating material and suspended matter and supernatant separation of liquid small particles, in case the high-quality operation of subsequent reactor；
Step 4: entering UASB reactor 4 by pipeline by the landfill leachate after conditioning tank 2, by garbage filter
Part larger molecular organics are converted to natural pond gas and water and other small-molecule substances in liquid；
Step 5: entering sbr reactor device 5 by pipeline by the landfill leachate after UASB reactor 4, rubbish is removed
Organic matter while denitrogenation dephosphorizing in percolate；
Step 6: forward osmosis membrane bioreactor 6 is entered by pipeline by the landfill leachate after sbr reactor device 5,
Carry out advanced nitrogen dephosphorization；Cross-flow mode；FO mode；Liquid is drawn using sodium chloride；In the process of running between drawing liquid holding
Formula of having a rest charging, maintains concentration between 3M-3.5M；Positive infiltration biofilm reactor 6 water outlet is sodium chloride solution；
Step 7: the sodium chloride solution by forward osmosis membrane bioreactor 6 enters nanofiltration membrane system by pipeline
7, remove remaining small molecule contaminants after advanced treating；
Step 8: being heat-treated to by the sodium chloride solution after nanofiltration, sodium chloride is separated from water；Sodium chloride returns
Liquid is drawn with into forward osmosis membrane bioreactor 6；Water can be in reuse to refuse landfill 9.
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered
This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details
On the utility model is made a variety of changes, be the protection scope of the utility model.
Claims (6)
1. a kind of processing unit of landfill leachate, it is characterised in that: including the pretreatment unit, conditioning tank, heavy being sequentially communicated
Shallow lake pond, sludge reaction device, forward osmosis membrane bioreactor and nanofiltration membrane system, the pretreatment unit are equipped with one
For bulky grain floating material or suspended matter to be transferred to the recovery channel of refuse landfill, the forward osmosis membrane bioreactor
Top is equipped with a concentrate reflux line, and the concentrate reflux line is connected to conditioning tank.
2. a kind of processing unit of landfill leachate as described in claim 1, it is characterised in that: the nanofiltration membrane system
The rear end of system connects thermal release reactor, the thermal release reactor be equipped with sealed with it the first reflux line being connected to and
Second reflux line, first reflux line are connected to forward osmosis membrane bioreactor, and second reflux line connects
It is connected to refuse landfill.
3. a kind of processing unit of landfill leachate as described in claim 1, it is characterised in that: the sludge reaction device
Including UASB reactor and sbr reactor device, the front end of the UASB reactor is connected with sedimentation basin, the UASB reactor
Rear end is connected with sbr reactor device, and the rear end of the sbr reactor device is connected with forward osmosis membrane bioreactor.
4. a kind of processing unit of landfill leachate as described in claim 1, it is characterised in that: the pretreatment unit packet
Include coarse rack and fine fack.
5. a kind of processing unit of landfill leachate as claimed in claim 4, it is characterised in that: between the grid of the coarse rack
Away from for 60-80mm.
6. a kind of processing unit of landfill leachate as claimed in claim 4, it is characterised in that: between the grid of the fine fack
Away from for 4-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820599765.5U CN208327721U (en) | 2018-04-25 | 2018-04-25 | A kind of processing unit of landfill leachate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820599765.5U CN208327721U (en) | 2018-04-25 | 2018-04-25 | A kind of processing unit of landfill leachate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208327721U true CN208327721U (en) | 2019-01-04 |
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ID=64778355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820599765.5U Expired - Fee Related CN208327721U (en) | 2018-04-25 | 2018-04-25 | A kind of processing unit of landfill leachate |
Country Status (1)
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| CN (1) | CN208327721U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110272170A (en) * | 2019-07-25 | 2019-09-24 | 江南大学 | A kind of multistage membrane separation device and method of processing and reuse for fermentation waste water |
| CN114289454A (en) * | 2022-01-11 | 2022-04-08 | 浙江工商大学 | Perishable garbage anaerobic fermentation device and method |
-
2018
- 2018-04-25 CN CN201820599765.5U patent/CN208327721U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110272170A (en) * | 2019-07-25 | 2019-09-24 | 江南大学 | A kind of multistage membrane separation device and method of processing and reuse for fermentation waste water |
| CN110272170B (en) * | 2019-07-25 | 2020-11-03 | 江南大学 | Multistage membrane separation device and method for treating and recycling fermentation wastewater |
| CN114289454A (en) * | 2022-01-11 | 2022-04-08 | 浙江工商大学 | Perishable garbage anaerobic fermentation device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 Termination date: 20200425 |