CN202658046U - Landfill leachate treating system - Google Patents
Landfill leachate treating system Download PDFInfo
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- CN202658046U CN202658046U CN 201220254623 CN201220254623U CN202658046U CN 202658046 U CN202658046 U CN 202658046U CN 201220254623 CN201220254623 CN 201220254623 CN 201220254623 U CN201220254623 U CN 201220254623U CN 202658046 U CN202658046 U CN 202658046U
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- anaerobic sludge
- sludge blanket
- treating system
- blanket reactor
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Abstract
The utility model disclose a landfill leachate treating system, which comprises an upflow anaerobic sludge blanket reactor, an air stripping tower, an aeration tank and a reverse osmosis device connected in sequence, wherein a water outlet tube of the upflow anaerobic sludge blanket reactor is connected with a water inlet tube of a blow-off device, and is connected with a water inlet tube of the upflow anaerobic sludge blanket reactor simultaneously. The treating system provided by the utility model has the characteristic of good treating effect.
Description
Technical field
The utility model relates to the technology of garbage disposal field, and specifically a kind of percolate is processed system.
Background technology
Percolate is the extremely complicated sewage of a kind of high density, high toxic, composition, and water quality is along with the different differences of region, living habit, economic level are very big.Pollutants from landfill leachate mainly contains following source: the great amount of soluble organism that rubbish itself contains, inorganics dissolve in rainwater, surface water or underground water immersion process and enter percolate; Rubbish enters percolate by the soluble substance that the effects such as biology, chemistry, physics produce; Enter the soluble substance of percolate in covering and the soil on every side.
At present the treatment technology of rubbish mainly is divided into two classes: a class is percolate directly to be discharged into the municipal sewage plant merge processing after certain pre-treatment; Another kind of is that percolate is carried out individual curing.Because refuse landfill is away from the city, the percolate handling charges is higher and uneconomical, and leachate quality is complicated, easily sewage work is produced and impacts, and affects the normal operation of municipal sewage plant.Therefore, adopt generally speaking the percolate individual curing.
Percolate treating process commonly used mainly is divided into several directions at present: biological treatment, materialization treatment process, soil facture etc.
Biological treatment is divided into aerobe to be processed, anaerobic biological treatment, and anaerobic-aerobic combination worker and oxidation pond are processed.Invest relatively high, build and debugging cycle longer, inadaptable for the weather condition that the long-term winter temperature of the northern area of China is lower.
Materialization treatment process mainly comprises coagulating sedimentation, chemical precipitation, absorption, stripping, membrane sepn etc.Physico-chemical process is mainly used in removing the organic substance of ammonia nitrogen, heavy metal ion and difficult degradation in the percolate, guarantees the normal operation of subsequent biological treatment technique; When processing as subsequent disposal with materialization, can further improve effluent quality, guarantee the qualified discharge of percolate.Construction investment is higher, and running cost is high, and is higher for operation operations staff competency profiling, and the main technique that can not process as percolate is separately used.In the membrane sepn process, film fouling and contamination phenomenon are serious, and film is short work-ing life, and assembly is easy care not, and the filtration membrane replacement charge is higher, if need to change whole membrane module, replacement charge is higher.Membrane module obviously is better than traditional rolled film at anti-soil aspect stifled, and rolled film is more obvious in the shortcoming aspect above.
The soil facture mainly is that filtration, ion-exchange, absorption and the precipitating action by soil particle removed suspended solids and the solvent components in the percolate, biological action by soil transforms organism and ammonia in the percolate, reduces the generating capacity of percolate by Evaporation.Soil and groundwater there is the chronic pollution effect, and is subjected to the soil condition restriction.Along with the increase of Municipal Solid Waste, fewer and feweri near the applicable soil in city, open up remote soil and greatly improved again the refuse treatment cost.
In view of the problem that exists in the above-mentioned existing refuse leachate treatment technology, the design people is actively studied and innovated, and has has finally researched and developed a kind of percolate and has processed system, and percolate is carried out comprehensive treating process, and is safe, efficient, energy-conservation.
The utility model content
In order to solve the above-mentioned problems in the prior art, the utility model provides a kind of garbage percolation liquid treating system, and garbage percolation liquid treating system of the present utility model has the characteristics of good sewage processing effect.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme:
Garbage percolation liquid treating system, comprise upflow anaerobic sludge blanket process (UASB) reactor, stripping tower, aeration tank and the reverse osmosis unit that connect successively, also be connected with the water inlet pipe of up flow anaerobic sludge blanket reactor when wherein the rising pipe of up flow anaerobic sludge blanket reactor is connected with the water inlet pipe of stripping device.
Further, the shore pipe that described up flow anaerobic sludge blanket reactor is connected with the aeration tank separately is connected with sludge thickener, and sludge thickener also is connected with digester.
Further, described up flow anaerobic sludge blanket reactor is made of three groups of upflow anaerobic sludge blanket process, and every group of upflow anaerobic sludge blanket process arranges 4 thief holes from top to bottom.
Compared with prior art, the beneficial effects of the utility model are:
Garbage percolation liquid treating system of the present utility model can carry out comprehensive treating process to percolate, and treatment effect is good.The main water-quality guideline of water outlet has reached the related request among the GB16889-2008 " consumer waste filling and embedding pollution control criterion ".Treatment system of the present utility model is used physico-chemical process treating refuse percolate, is subjected to water quality, water yield variable effect little, and stable effluent quality, has obtained in recent years significant progress.Obviously reduced the toxicity that causes because of the synergy synergy between the percolate complex component and antagonistic action, system's water outlet biodegradability strengthens.The suitable large-scale development for the treatment of system of the present utility model uses.
Description of drawings
Fig. 1 is the structured flowchart of the preferred embodiment of garbage percolation liquid treating system of the present utility model.
Fig. 2 is the structural representation of up flow anaerobic sludge blanket reactor.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail, but not as to restriction of the present utility model.
Fig. 1 is the structured flowchart of the preferred embodiment of garbage percolation liquid treating system of the present utility model.As shown in Figure 1, garbage percolation liquid treating system, comprise the up flow anaerobic sludge blanket reactor 1, stripping tower 2, aeration tank 3 and the reverse osmosis unit 4 that connect successively, also be connected with the water inlet pipe of up flow anaerobic sludge blanket reactor when wherein the rising pipe of up flow anaerobic sludge blanket reactor is connected with the water inlet pipe of stripping device.
As preferably, the shore pipe that up flow anaerobic sludge blanket reactor is connected with the aeration tank by separately is connected with sludge thickener 5, and sludge thickener 6 also is connected with digester.The mud of discharging enters digester 7 after precipitating and concentrating in sludge thickener, finally pull away through outward transport.
Fig. 2 is the structural representation of up flow anaerobic sludge blanket reactor.As shown in Figure 2, upflow anaerobic sludge blanket process (UASB) reactor is built-up type, concrete structure, consists of by three groups, and single group dead size is 10m*10m*6m, and single pond useful volume is 600m
3Every group of up flow anaerobic sludge blanket reactor comprises pond body 11, manhole 15 on the pond body 11, shore pipe 16 and 4 thief holes 14 that arrange from top to bottom.The bottom of pond body 11 is provided with blow-down pipe 17.Also comprise the water inlet pipe 12 and the rising pipe 13 that arrange on the pond body 11.For preventing sludge loss, at pond body 11 interior layout cavity fillings.The volumetric loading of reactor is 5kgCOD/ (m
3D), hydraulic detention time is 24h.Adopt the water intake mode of intermittent water inflow and effluent recycling, rising pipe 13 is connected with water inlet pipe 12, is used for effluent recycling.The former water that is entered in the pond body 11 by water inlet pipe 12 is 1: 1 with recirculation water flow ratio, and the design sludge concentration is 30kgTSS/m
3
The sewage that up flow anaerobic sludge blanket reactor is processed enters stripping tower through rising pipe.NH3-N concentration reaches more than the 1500mg/L in the water outlet, therefore utilize first ammonia stripper to carry out the part denitrogenation, namely at first add alkali and make percolate be alkalescence (the pH value is 10), make ammonium ion wherein be converted into free ammonia, then send into stripping tower and remove with spray and air blast stripping mode.Stripping tower adopts JYDN type denitrification column, and gas flow rate is 12m/s in the tower height 70m, tower, and gas-water ratio is 2800: 1, and the void tower gas flow rate is 25m/s.
Sewage after stripping tower is processed enters into the aeration tank.By adding Fenton reagent, the COD clearance reaches 61%.According to the regulation of the emission limit of percolate, the aeration tank water outlet does not reach emission standard, therefore needs further process through reverse osmosis unit.
Reverse osmosis claims again reverse osmosis, is a kind of take pressure difference as impellent, isolates the membrane sepn operation of volume from solution.Feed liquid to film one side is exerted pressure, and when pressure surpassed its osmotic pressure, solvent can be against the direction inverse osmosis of naturally osmotic.Thereby the solvent that obtains seeing through in the low-tension side of film, i.e. penetrating fluid; The solution that the high-tension side obtains concentrating, i.e. concentrated solution.Various mineral ions, colloidalmaterial and macromole solute in the reverse osmosis membrane energy trap water, thus water quality is purified.The operating pressure of reverse osmosis is about 23bar, and the concentrating and separating stable water outlet is up to standard, enters the reverse osmosis water outlet tank and regulates temporarily, and all the other are reserved for one's own use and are discharged into retention basin.Reverse osmosis is same adopts dense water internal recycle two-section type system, the rate of recovery to guarantee more than 80%, and water outlet COD clearance is about 80%.
In the following table 1 for using garbage percolation liquid treating system of the present utility model to carry out each index amount in (water inlet) and processing rear (water outlet) before the processing that percolate processes.
Table 1
| Sequence number | The control pollutent | Water inlet | Water outlet |
| 1 | BOD5 | 5000 | 15 |
[0027]
| 2 | COD | 12000 | 20 |
| 3 | Suspended substance | 800 | 0 |
| 4 | Ammonia nitrogen | 1200 | 16 |
| 5 | Total nitrogen | 1500 | 33 |
| 6 | The pH value | 5～8 | 6～8 |
As can be seen from Table 1, the main water-quality guideline of water outlet has reached the related request among the GB16889-2008 " consumer waste filling and embedding pollution control criterion ", and the result shows, this treatment system of the present utility model is better to the percolate treatment effect.
Above embodiment is exemplary embodiment of the present utility model only, is not used in restriction the utility model, and protection domain of the present utility model is defined by the claims.Those skilled in the art can make various modifications or be equal to replacement the utility model in essence of the present utility model and protection domain, this modification or be equal to replacement and also should be considered as dropping in the protection domain of the present utility model.
Claims (3)
1. garbage percolation liquid treating system, it is characterized in that, comprise the up flow anaerobic sludge blanket reactor, stripping tower, aeration tank and the reverse osmosis unit that connect successively, also be connected with the water inlet pipe of up flow anaerobic sludge blanket reactor when wherein the rising pipe of up flow anaerobic sludge blanket reactor is connected with the water inlet pipe of stripping device.
2. garbage percolation liquid treating system according to claim 1 is characterized in that, the shore pipe that described up flow anaerobic sludge blanket reactor is connected with the aeration tank separately is connected with sludge thickener, and sludge thickener also is connected with digester.
3. garbage percolation liquid treating system according to claim 1 is characterized in that, described up flow anaerobic sludge blanket reactor is made of three groups of upflow anaerobic sludge blanket process, and every group of upflow anaerobic sludge blanket process arranges 4 thief holes from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254623 CN202658046U (en) | 2012-06-01 | 2012-06-01 | Landfill leachate treating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254623 CN202658046U (en) | 2012-06-01 | 2012-06-01 | Landfill leachate treating system |
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| Publication Number | Publication Date |
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| CN202658046U true CN202658046U (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220254623 Expired - Lifetime CN202658046U (en) | 2012-06-01 | 2012-06-01 | Landfill leachate treating system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107840533A (en) * | 2017-10-19 | 2018-03-27 | 浙江博世华环保科技有限公司 | A kind of processing method of garbage burning factory percolate |
| CN110563261A (en) * | 2019-09-09 | 2019-12-13 | 贵州欧瑞欣合环保股份有限公司 | landfill leachate biological treatment method |
-
2012
- 2012-06-01 CN CN 201220254623 patent/CN202658046U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107840533A (en) * | 2017-10-19 | 2018-03-27 | 浙江博世华环保科技有限公司 | A kind of processing method of garbage burning factory percolate |
| CN110563261A (en) * | 2019-09-09 | 2019-12-13 | 贵州欧瑞欣合环保股份有限公司 | landfill leachate biological treatment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: BEIJING XUANANG ENVIRONMENT PROTECTION SCIENCE & TECHNOLOGY CO., LTD. Assignor: Zhao Yiwu Contract record no.: 2013110000064 Denomination of utility model: System and method for treating high-concentration landfill leachate in aerobic composting site Granted publication date: 20130109 License type: Exclusive License Record date: 20131211 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING XUANANG ENVIRONMENTAL PROTECTION TECHNOLOG Free format text: FORMER OWNER: ZHAO YIWU Effective date: 20140129 |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140129 Address after: 100029, No. 29, 3rd Ring Road, North China, building A, ten block, Hua Zun building, Beijing Patentee after: BEIJING XUANANG ENVIRONMENT PROTECTION SCIENCE & TECHNOLOGY CO., LTD. Address before: 100029, Beijing, North Third Ring Road, a flower No. 29, building A, ten floor Patentee before: Zhao Yiwu |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |
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| CX01 | Expiry of patent term |