CN203419825U - Landfill leachate advanced treatment device - Google Patents
Landfill leachate advanced treatment device Download PDFInfo
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- CN203419825U CN203419825U CN201320552793.9U CN201320552793U CN203419825U CN 203419825 U CN203419825 U CN 203419825U CN 201320552793 U CN201320552793 U CN 201320552793U CN 203419825 U CN203419825 U CN 203419825U
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Abstract
The utility model discloses a landfill leachate advanced treatment device which is characterized by comprising an ozone catalytic oxidation device, an anoxic pool, an aerobiotic pool and a membrane bioreactor (MBR) sequentially connected through a landfill leachate pipeline, wherein the MBR is internally provided with a built-in MBR membrane assembly, and aerating pipelines are arranged at the bottoms of the aerobiotic pool and the membrane bioreactor. The device disclosed by the utility model carries out advanced treatment on the landfill leachate by adopting an advanced oxidation technology combined with a biochemical treatment technology, thereby not only lowering the investment and operating cost of projects, but also effectively treating the landfill leachate. The device disclosed by the utility model can be further used for treatment of high-concentration organic wastewater which is difficultly biochemically degraded.
Description
Technical field
The utility model relates to sewage treatment area, relates in particular to the percolate advanced treatment apparatus of a kind of catalytic ozonation combined film bioreactor (MBR).
Background technology
Percolate has that contaminant component complexity, Pollutant levels are high, heavy metal ion content high.Percolate after biochemical treatment, the CODcr of its water outlet is still up to nearly 1000mg/l, remaining organism mainly be take the humic acid of hydrophobic nature and fulvic acid as many, and these organic substances have been difficult to traditional biochemical method removal, and its content is also directly proportional to the landfill time.
Percolate after biochemical treatment, has following features: 1) carbon source material biodegradability is lower, BOD
5/ CODcr, greatly about 0.01-0.15, is unsuitable for removing organism in biochemical mode; 2) BOD5/TN is low to moderate below 1, is not suitable for adopting biochemical mode to remove total nitrogen again; 3) BOD5/TP value, lower than 5, is not suitable for adopting biochemical mode to remove total phosphorus again.
Enhancing day by day along with broad masses of the people's environmental consciousness; the requirement of " building a resource-conserving and environment-friendly society " for responding country, Environmental Protection Department pollutes control criterion > > (GB16889-2008) replacement < < consumer waste filling and embedding pollution control criterion > > (GB16889-1997) from the new < < consumer waste filling and embedding of having formulated.By new standard requirement, in tail water, the emission concentration of CODCr must be controlled at below 100mg/l.
For reaching emission standard requirement, the advanced treatment technology of percolate need consider from physico-chemical process, as: absorption, membrane sepn and high-level oxidation technology.But absorption is not a better selection for percolate advanced treatment, and it has two reasons: the one, and pollutent contained in water body is difficult to by using a kind of sorbent material all to remove.The 2nd, sorbent material is saturated, and after pollutent penetrates, the desorb of sorbent material and regeneration can increase the complicacy of operation; Membrane separation technique in actual application, exist membrane flux reduce than very fast, the film replacement cycle is short, cost of investment is high, running cost is high and concentrated solution such as cannot process at the problem; And if adopt merely Advanced Oxidation Processes for Treating Landfill Leachate, by oxygenant, hardly degraded organic substance carbonization is decomposed completely, running cost is very high.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide the percolate advanced treatment apparatus of a kind of efficient, reliable and stable, low input, low operating cost.
For achieving the above object, the technical scheme that the utility model proposes is: a kind of percolate advanced treatment apparatus, it is characterized in that: comprise the device for catalyzing and oxidating ozone, anoxic pond, Aerobic Pond, the membrane bioreactor (MBR) that are connected successively with percolate pipeline, in described membrane bioreactor, be provided with built-in MBR membrane module, described Aerobic Pond, membrane bioreactor bottom are provided with aerated conduit.
Further, described device for catalyzing and oxidating ozone comprises connected successively apparatus of oxygen supply, ozonizer, catalyst oxidation reactor, described catalyst oxidation reactor top connects percolate pipeline, bottom connects ozonizer, and described catalyst oxidation reactor top is provided with an ozone tail gas destructor.
Further, described catalyst oxidation reactor comprises one-level catalyst oxidation reactor, secondary catalyst oxidation reactor, described one-level catalyst oxidation reactor, secondary catalyst oxidation reactor and percolate pipeline are connected in series, and described one-level catalyst oxidation reactor, secondary catalyst oxidation reactor and ozonizer are connected in parallel.
Further, between described secondary catalyst oxidation reactor and anoxic pond, be also provided with Buffer Pool.
Further, on described ozonizer, be also provided with heat exchange pipeline.
Further, described membrane bioreactor bottom is provided with a reflux line and is connected with anoxic pond, and described reflux pump is provided with a reflux pump.
Adopt technique scheme, the beneficial effect that percolate advanced treatment apparatus described in the utility model has is: the utility model adopts high-level oxidation technology associating biochemical processing to carry out advanced treatment to percolate, investment, the running cost of engineering can be reduced, effective processing of percolate can be realized again simultaneously; The utility model also can be used for the processing of high density bio-refractory organic waste water.
Accompanying drawing explanation
Fig. 1 is percolate advanced treatment apparatus schematic diagram described in the utility model;
Wherein: 1. apparatus of oxygen supply, 2. ozonizer, 3. one-level catalyst oxidation reactor, 4. inter-stage lift pump, 5. secondary catalyst oxidation reactor, 6. intermediate lift pump, 7. ozone tail gas destructor, 8. Buffer Pool, 9. anoxic pond, 10. Aerobic Pond, 11. membrane bioreactors; 12. built-in MBR membrane modules, 13. produce water pump, 14. reflux pumps, 15. Aeration fans.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figure 1, a kind of percolate advanced treatment apparatus, comprise the device for catalyzing and oxidating ozone, Buffer Pool 8, anoxic pond 9, Aerobic Pond 10, the membrane bioreactor (MBR) 11 that are connected successively with percolate pipeline, in membrane bioreactor 11, be provided with built-in MBR membrane module 12, described Aerobic Pond, membrane bioreactor 11 bottoms are provided with aerated conduit, are connected with Aeration fan 15 on aerated conduit.
Concrete, device for catalyzing and oxidating ozone comprises connected successively apparatus of oxygen supply 1, ozonizer 2, one-level catalyst oxidation reactor 3, inter-stage lift pump 4, secondary catalyst oxidation reactor 5, and one-level catalyst oxidation reactor 3, secondary catalyst oxidation reactor 5 tops are provided with an ozone tail gas destructor 7; One-level catalyst oxidation reactor 3, secondary catalyst oxidation reactor 5 are connected in parallel with ozonizer 2, and described membrane bioreactor 11 bottoms are provided with a reflux line and are connected with anoxic pond, and described reflux pump is provided with a reflux pump 14.
The utility model adopts the membrane Bio-reactor Technology in the catalytic ozonation technical tie-up biochemical treatment in advanced oxidation to carry out advanced treatment to percolate, ozone can produce a large amount of hydroxyl radical free radicals in catalytic oxidation process, this hydroxyl radical free radical can decompose hardly degraded organic substance fast and effectively, and be converted into the small organic molecule of readily biodegradable, improve the biodegradability of percolate; Percolate after catalytic ozonation, biodegradability improves greatly, can adopt the membrane bioreactor of low operating cost, high treatment efficiency further to process completely, and to remove organism residual in percolate, water outlet reaches corresponding discharge standard-required.Avoid so simple employing high-level oxidation technology to process, caused facility investment large, the problem that processing costs is high; Also without adopting in membrane separating method process, produce the problem that concentrated solution cannot be processed.
During concrete use, adopt said apparatus to carry out the treating processes of advanced treatment of rubbish yield as follows:
1) oxygen being provided by apparatus of oxygen supply 1, in ozonizer 2, reaction produces certain density ozone;
2) ozone that ozonizer 2 produces is dispensed to one-level catalyst oxidation reactor 3 and secondary catalyst oxidation reactor 5 by pipeline, and mixes with percolate;
3) after the percolate after biochemical treatment mixes with liquid-phase catalyst, by one-level catalyst oxidation reactor 3 tops, entered, the ozone gas counter current contact entering with one-level catalyst oxidation reactor 3 bottoms, carry out catalytic oxidation, the gas of reactor head residue ozone enters ozone tail gas destructor 7 and processes;
4) through the percolate of one-level catalyzed oxidation, through inter-stage lift pump 4, be promoted to secondary catalyst oxidation reactor 5 tops, the ozone gas counter current contact again entering with bottom, carry out catalytic oxidation, the gas of reactor head residue ozone enters ozone tail gas destructor 7 and processes;
5) through the percolate of two-stage catalyzed oxidation, through intermediate lift pump 6, be promoted to Buffer Pool 8, unreacted ozone is removed in neutralization;
6) through in Buffer Pool 8 and after percolate, certainly flow into anoxic pond 9, mixes and carries out anoxic biochemical reaction with the phegma of membrane bioreactor, one side remove the COD in percolate, carry out on the other hand anti-nitration reaction and remove nitric nitrogen;
7) percolate after anoxic pond 9 is processed, flows into Aerobic Pond 10 certainly, by blast aeration, mixes, and carries out aerobic biochemical decomposition under the effect of aerobic microbiological, removes the COD in percolate on the one hand, carries out on the other hand nitration reaction removal of ammonia and nitrogen;
8) percolate after Aerobic Pond 10 biochemical treatments, flows into membrane bioreactor 11 certainly, by built-in MBR membrane separation assemblies 12, after qualified product water multiparity water pump 13 suctions after separation, promotes outer row; Unsegregated part percolate and mud mixture are back to anoxic pond 9 through reflux pump 14 and process, and carry out sludge treatment on a small quantity by row of conduits to sludge treatment equipment.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but those skilled in the art should be understood that; within not departing from the spirit and scope of the present utility model that appended claims limits; in the form and details the utility model is made a variety of changes, be protection domain of the present utility model.
Claims (6)
1. a percolate advanced treatment apparatus, it is characterized in that: comprise the device for catalyzing and oxidating ozone, anoxic pond, Aerobic Pond, the membrane bioreactor that are connected successively with percolate pipeline, in described membrane bioreactor, be provided with built-in MBR membrane module, described Aerobic Pond, membrane bioreactor bottom are provided with aerated conduit.
2. a kind of percolate advanced treatment apparatus according to claim 1, it is characterized in that: described device for catalyzing and oxidating ozone comprises connected successively apparatus of oxygen supply, ozonizer, catalyst oxidation reactor, described catalyst oxidation reactor top connects percolate pipeline, bottom connects ozonizer, and described catalyst oxidation reactor top is provided with an ozone tail gas destructor.
3. a kind of percolate advanced treatment apparatus according to claim 2, it is characterized in that: described catalyst oxidation reactor comprises one-level catalyst oxidation reactor, secondary catalyst oxidation reactor, described one-level catalyst oxidation reactor, secondary catalyst oxidation reactor and percolate pipeline are connected in series, and described one-level catalyst oxidation reactor, secondary catalyst oxidation reactor and ozonizer are connected in parallel.
4. a kind of percolate advanced treatment apparatus according to claim 3, is characterized in that: between described secondary catalyst oxidation reactor and anoxic pond, be provided with Buffer Pool.
5. a kind of percolate advanced treatment apparatus according to claim 2, is characterized in that: on described ozonizer, be also provided with heat exchange pipeline.
6. a kind of percolate advanced treatment apparatus according to claim 1, is characterized in that: described MBR reactor bottom is provided with a reflux line and is connected with anoxic pond, and described reflux pump is provided with a reflux pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320552793.9U CN203419825U (en) | 2013-09-06 | 2013-09-06 | Landfill leachate advanced treatment device |
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| CN201320552793.9U CN203419825U (en) | 2013-09-06 | 2013-09-06 | Landfill leachate advanced treatment device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104803547A (en) * | 2015-03-25 | 2015-07-29 | 江苏博大环保股份有限公司 | Method for treating COW-DM sewage with high chemical stability and biodegradation difficulty |
| CN105130088A (en) * | 2014-05-28 | 2015-12-09 | 江苏维尔利环保科技股份有限公司 | Ozone oxidation treatment leachate nanofiltration concentrate treatment method |
| CN108275848A (en) * | 2018-03-27 | 2018-07-13 | 中节能工程技术研究院有限公司 | A kind of wastewater treatment integrating device and method |
| CN108996819A (en) * | 2018-07-24 | 2018-12-14 | 山东龙安泰环保科技有限公司 | A kind of processing method of high alcohol waste water |
| CN109020097A (en) * | 2018-09-29 | 2018-12-18 | 北京环境工程技术有限公司 | A kind of garbage leachate full dose processing equipment and method |
| CN111484192A (en) * | 2020-04-02 | 2020-08-04 | 江苏永冠给排水设备有限公司 | Mobile garbage transfer station leachate treatment device |
| CN112209560A (en) * | 2019-07-11 | 2021-01-12 | 中国科学院城市环境研究所 | Combined process treatment method of landfill leachate |
-
2013
- 2013-09-06 CN CN201320552793.9U patent/CN203419825U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130088A (en) * | 2014-05-28 | 2015-12-09 | 江苏维尔利环保科技股份有限公司 | Ozone oxidation treatment leachate nanofiltration concentrate treatment method |
| CN105130088B (en) * | 2014-05-28 | 2017-07-04 | 江苏维尔利环保科技股份有限公司 | The processing method of ozone Oxidation Treatment percolate nanofiltration concentrate |
| CN104803547A (en) * | 2015-03-25 | 2015-07-29 | 江苏博大环保股份有限公司 | Method for treating COW-DM sewage with high chemical stability and biodegradation difficulty |
| CN108275848A (en) * | 2018-03-27 | 2018-07-13 | 中节能工程技术研究院有限公司 | A kind of wastewater treatment integrating device and method |
| CN108996819A (en) * | 2018-07-24 | 2018-12-14 | 山东龙安泰环保科技有限公司 | A kind of processing method of high alcohol waste water |
| CN109020097A (en) * | 2018-09-29 | 2018-12-18 | 北京环境工程技术有限公司 | A kind of garbage leachate full dose processing equipment and method |
| CN112209560A (en) * | 2019-07-11 | 2021-01-12 | 中国科学院城市环境研究所 | Combined process treatment method of landfill leachate |
| CN111484192A (en) * | 2020-04-02 | 2020-08-04 | 江苏永冠给排水设备有限公司 | Mobile garbage transfer station leachate treatment device |
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Address after: Siming District of Xiamen city in Fujian province after the 361004 Dai Xi Road No. 28 building 28 floor huangtech Patentee after: CUE Co.,Ltd. Address before: Siming District of Xiamen city in Fujian province after the 361004 Dai Xi Road No. 28 building 28 floor huangtech Patentee before: CHINA UNION ENGINEERING Co.,Ltd. |
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Granted publication date: 20140205 |
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