CN203284240U - Landfill leachate pretreatment advanced oxidation device based on free radical shower technology - Google Patents
Landfill leachate pretreatment advanced oxidation device based on free radical shower technology Download PDFInfo
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- CN203284240U CN203284240U CN201320270017XU CN201320270017U CN203284240U CN 203284240 U CN203284240 U CN 203284240U CN 201320270017X U CN201320270017X U CN 201320270017XU CN 201320270017 U CN201320270017 U CN 201320270017U CN 203284240 U CN203284240 U CN 203284240U
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Abstract
The utility model relates to a landfill leachate pretreatment advanced oxidation device based on a free radical shower technology. The oxidation device comprises a high-voltage power supply and an advanced oxidation reactor and further comprises a free radical shower device, wherein the free radical shower device comprises a tubular high-voltage electrode, an air conduit and a blower; the air conduit, the blower and the tubular high-voltage electrode are connected in sequence. The oxidation device has the benefits that the treatment efficiency is improved in a free radical shower and plasma liquid level discharge combined manner; short-life active free radicals O and OH as well as long-life active substances O3, H2O2 and the like simultaneously enter the landfill leachate to conduct advanced oxidation reaction, so that the utilization efficiency of the active substances is improved and energy consumption is lowered; meanwhile, as the electrode is separated from the liquid level of the landfill leachate, not only the electrode is free from influence of water quality, but also the service life of the electrode is prolonged, and the advanced oxidation pretreatment effects of strong suitability for water quality and stable treatment effect are achieved.
Description
Technical field
The utility model relates to the field of sewage purification, processing, especially a kind of advanced oxidation device of percolate pre-treatment based on free radical shower technology.
Background technology
Percolate refers to enter in the garbage treatment process liquid experience waste layer such as the rainwater of refuse landfill and snow-broth and overburden layer and a kind of high-concentration sewage of forming.Percolate generally comprises following characteristics: BOD and COD content is high, heavy metal concentration is high, ammonia-nitrogen content is high, the imbalance of microbial nutrition element ratio., if not dealing carefully with, can cause severe contamination to environment, water body and soil on every side., because the percolate composition is extremely complicated, therefore usually need multiple-stage treatment could realize deep purifying.Its pre-treating process mainly contains three kinds of Physical, chemical method and biological processes.Wherein, physical method and chemical treatment method have treatment effect preferably, and lower to the susceptibility of water quality, water yield change.Be particularly useful for BOD/COD ratio low (＜0.20), the percolate pre-treatment of difficult for biological degradation.But their processing costss are high, complicated operation, shortcoming that energy consumption is high are also apparent.Biochemical process running cost is low, is to remove dissolved organic matter in sewage and the main method of colloidal organic matter.But, due to the toxic substance that contains high density in percolate (as heavy metal etc.), may make microorganism poisoning, dead, to such an extent as to can't work.The treatment process of the percolate of development of new becomes the focus of recent scientific circles and engineering circles research.
Summary of the invention
The utility model will solve the shortcoming of above-mentioned prior art, provides that a kind of processing efficiency is high, energy consumption is low, water quality strong adaptability, the stable advanced oxidation device of the percolate pre-treatment based on free radical shower technology for the treatment of effect.
The utility model solves the technical scheme that its technical problem adopts: this advanced oxidation device of percolate pre-treatment based on free radical shower technology, comprise high-voltage power supply and advanced oxidation reactor, this oxidation unit also comprises free radical shower device, described free radical shower device comprises tubulose high voltage electrode, air lead and gas blower, and air lead, gas blower are connected and are connected with the tubulose high voltage electrode.
As preferably, described free radical shower device and garbage filter liquid level are separated from each other.
As preferably, described high-voltage power supply is high-voltage pulse power source, high-frequency ac power or direct supply.
The effect that utility model is useful is: adopt the free radical shower to improve processing efficiency with the mode that the discharge of plasma body liquid level combines; Short life living radical O and OH, and long lifetime active substance O3, H2O2 etc. enter simultaneously in percolate and carry out the advanced oxidation reaction, have improved the utilising efficiency of active substance, have reduced energy consumption; Simultaneously,, because electrode separates with the percolate liquid level, not only make electrode not be subjected to the impact of water quality also to extend the work-ing life of electrode, realized water quality strong adaptability, the stable advanced oxidation pre-treatment effect for the treatment of effect.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Description of reference numerals: high-voltage power supply 1, advanced oxidation reactor 2, free radical shower device 3, high voltage electrode 4, air lead 5, gas blower 6.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Embodiment: as Fig. 1, a kind of advanced oxidation device of percolate pre-treatment based on free radical shower technology mainly comprises high-voltage power supply 1 and advanced oxidation reactor 2, this oxidation unit also comprises free radical shower device 3, described free radical shower device 3 comprises tubulose high voltage electrode 4, air lead 5 and gas blower 6, described air lead 5 is connected and is connected successively with the tubulose high voltage electrode with gas blower 6.
High-voltage power supply 1 can be crest voltage at 1-200kv, pulsewidth at 0.002-900 μ s, frequency at the positive negative pulse stuffing high-voltage power supply of 1-3000Hz or crest voltage at 1-200kv, frequency at the ac high voltage source of 1Hz-100MHz or the voltage direct supply at 1-200kv.Free radical shower device 3 can be tubular type needle-like high voltage electrode, in the presence of air lead 5 and gas blower 6, free radical through the tubular type high voltage electrode with high-velocity jet to the percolate liquid level.Under the dual function of plasma body and free radical injection, short life living radical O and OH, and long lifetime active substance such as O3, H2O2 etc. enter simultaneously in percolate and carry out the advanced oxidation reaction, improve the utilising efficiency of active substance, reduced energy consumption.Simultaneously,, because electrode separates with the percolate liquid level, not only make electrode not be subjected to the impact of water quality also to extend the work-ing life of electrode, realized water quality strong adaptability, the stable advanced oxidation pre-treatment effect for the treatment of effect.
Below be based on the specific examples of the percolate advanced oxidation pre-treatment of free radical shower technology.Percolate is obtained from Hangzhou emperor mountain range refuse landfill, and power supply operating parameter used is: crest voltage 5kV, 50Hz AC power, gas blower tolerance is at 40l/min.Concrete steps are: percolate is placed in the advanced oxidation reactor.Meanwhile, open gas blower and high-voltage power supply, percolate is carried out plasma reaction and free radical injection.
Result shows: the pre-treatment advanced oxidation device through this percolate carries out the advanced oxidation pre-treatment to percolate, and the turbidity of percolate reduces greatly, and ammonia nitrogen is processed clearance can reach 80%.The COD clearance can reach 80-90%.The biodegradability BOD/COD ratio of percolate reaches〉0.4.Simultaneously, more energy-conservation more than 15% than traditional way under the same treatment effect.And electrode does not contact with liquid level, and water quality adaptability is extremely strong, and treatment effect is stable.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (5)
1. advanced oxidation device of the percolate pre-treatment based on free radical shower technology, comprise high-voltage power supply (1) and advanced oxidation reactor (2), it is characterized in that: this oxidation unit also comprises free radical shower device (3), described free radical shower device (3) comprises tubulose high voltage electrode (4), air lead (5) and gas blower (6), and air lead (5), gas blower (6) are connected 4 with the tubulose high voltage electrode) connect successively.
2. the advanced oxidation device of the percolate pre-treatment based on free radical shower technology according to claim 1 is characterized in that: described free radical shower device (3) is separated from each other with the garbage filter liquid level.
3. the advanced oxidation device of the percolate pre-treatment based on free radical shower technology according to claim 1 is characterized in that: described high-voltage power supply (1) is high-voltage pulse power source.
4. the advanced oxidation device of the percolate pre-treatment based on free radical shower technology according to claim 1 is characterized in that: described high-voltage power supply (1) is high-frequency ac power.
5. the advanced oxidation device of the percolate pre-treatment based on free radical shower technology according to claim 1 is characterized in that: described high-voltage power supply (1) is direct supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201320270017XU CN203284240U (en) | 2013-05-15 | 2013-05-15 | Landfill leachate pretreatment advanced oxidation device based on free radical shower technology |
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| CN201320270017XU CN203284240U (en) | 2013-05-15 | 2013-05-15 | Landfill leachate pretreatment advanced oxidation device based on free radical shower technology |
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| CN203284240U true CN203284240U (en) | 2013-11-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113200596A (en) * | 2021-04-15 | 2021-08-03 | 成都安捷芮环保科技有限公司 | Compound type water treatment agent for dissolving and activating free radical clusters and application thereof |
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2013
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113200596A (en) * | 2021-04-15 | 2021-08-03 | 成都安捷芮环保科技有限公司 | Compound type water treatment agent for dissolving and activating free radical clusters and application thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20170515 |
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| CF01 | Termination of patent right due to non-payment of annual fee |