CN105320163A - Treatment method of utilizing ozone treatment membrane to filter tail gas generated after concentration - Google Patents
Treatment method of utilizing ozone treatment membrane to filter tail gas generated after concentration Download PDFInfo
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- CN105320163A CN105320163A CN201510769287.9A CN201510769287A CN105320163A CN 105320163 A CN105320163 A CN 105320163A CN 201510769287 A CN201510769287 A CN 201510769287A CN 105320163 A CN105320163 A CN 105320163A
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Abstract
The invention relates to the landfill leachate treatment field, and especially to a treatment method of utilizing an ozone treatment membrane to filter tail gas generated after concentration. In the method, tail gas is treated, and then enters into an aerobic digester to react with an oxidation liquid. The treatment method can not generate potential safety hazards, and can effectively utilize generated tail gas, thereby reducing waste and treatment costs.
Description
Technical field
The present invention relates to landfill leachate treatment field, particularly relate to a kind of disposal route utilizing the tail gas of the film filtration concentrated rear generation of ozone treatment.
Background technology
Waste incineration percolate has that pollutant levels are high, the change of complicated component, water quality and quantity greatly, the features such as intractability is large.At present, the treatment process of domestic waste incineration percolate mostly is physical treatment and adds this two kinds of method hybrid processing of biochemistry treatment, general technology is " pre-service adds the process of biological treatment blooming ", and film process generally adopts ultrafiltration, nanofiltration, counter-infiltration or its combination.It is good that nanofiltration and reverse osmosis technology have effluent quality, safe and reliable, simple operation and other advantages, but just physical separating process, the total amount of pollutant does not reduce, and in practice process, can produce the concentrate of former water inventory about 30%, these concentrates, due to its high salinity, high organism amount and the not easily feature such as biochemical decomposition, cause conventional physical, chemical method to be difficult to process; The main treatment technology of current domestic concentrate has Feton, returns spray, film is concentrated, galvanochemistry, Membrane Materials, evaporation and ozone oxidation etc., wherein ozone oxidation can make the thorough mineralising of the some organic pollutants in concentrate, organic pollutant molecule structure can also be changed, the compound of difficult for biological degradation is changed into the small-molecule substance of easily biological-degradable.Ozone oxidation is used for advanced treating waste incineration percolate, thoroughly can solves a difficult problem for film filtration concentrated pollution control in waste incineration percolate.
But the tail gas being rich in a large amount of oxygen and a part of ozone can be produced after adopting Ozonation process percolate, but these tail gas are directly discharged in air by prior art, like this because be rich in a large amount of oxygen in tail gas, so be directly discharged in air, there is certain potential safety hazard, and because water treatment biochemistry pool pure oxygen aeration also needs to use a large amount of oxygen, so the tail gas these being rich in oxygen directly discharges also certain waste.
Summary of the invention
Technical matters to be solved by this invention is: provide a kind of disposal route utilizing the tail gas of the film filtration concentrated rear generation of ozone treatment, this disposal route is adopted not only not have potential safety hazard, and effectively can utilize the tail gas of generation, cut the waste, reduce processing cost.
The technical solution adopted in the present invention is: a kind of disposal route utilizing the tail gas of the film filtration concentrated rear generation of ozone treatment, and it comprises the following steps:
One, to be processedly film filtration concentratedly ozone contact tank need be joined, during to be then passed into by the ozone that ozone generator produces in ozone contact tank film filtration concentrated;
Two, the tail gas produced after both steps one being reacted in ozone contact tank removes the particle in tail gas by filtrator, then whether the particle content measured in tail gas meets standard, if meet standard, jump to next step, if the standard of not meeting, tail gas is continued through the particle in filtrator removal tail gas, until particle content meets standard in tail gas, then jump to next step;
Three, the ozone concentration in the standard compliant tail gas of particle content that obtains of detecting step two, and the oxidation solution produced after both steps one being reacted in ozone contact tank is passed in Aerobic Pond;
If the ozone concentration that four step 3 detect is greater than X, ozone layer destroying in it is converted into oxygen by ozone breaker by the tail gas after then a part being filtered, then the tail gas after filtering with another part mixes, detect ozone concentration again, if detect, ozone concentration is still greater than X, then regulate the amount of the tail gas after being filtered by a part for ozone breaker, until the ozone concentration of gas is less than or equal to X after mixing, then jump to next step; If the ozone concentration that step 3 detects is less than or equal to X, then directly jump to next step;
Five, the tail gas ozone concentration that step 4 obtains being less than or equal to X be passed into after pressure charging system supercharging in Aerobic Pond with the secondary response again of the oxidation solution in Aerobic Pond, and the oxygen concentration simultaneously detected in Aerobic Pond, if detect, the oxygen concentration in Aerobic Pond is less than Y, the Switch Controller Aerobic Pond then opening another road oxygen system carries out oxygen supply, until the oxygen concentration in Aerobic Pond is more than or equal to Y, close the switch of another road oxygen system again, then continue to detect the oxygen concentration in Aerobic Pond.
Described X is 10-15%.
Described Y is 2.5-6.0mg/L.
Adopt above method compared with prior art, the present invention has the following advantages: import in Aerobic Pond after being processed by the tail gas of film filtration concentrated for ozone treatment rear generation and react with oxidation solution, the so not only effective tail gas directly emitted before utilized, potential safety hazard is reduced, but also the supply greatly reduced oxygen in Aerobic Pond, reduce processing cost, and because tail gas is through process, the particulate contaminant of the inside is less, principal ingredient is oxygen and ozone, and it is very little through the concentration limiting ozone, but ozone still exists, because better can react with oxidation solution through the applicant's test tail gas obtained containing a small amount of ozone, namely make treatment effect better.
Embodiment
Below for embodiment, the present invention is described further, but the present invention is not limited only to following embodiment.
Utilize a disposal route for the tail gas of the film filtration concentrated rear generation of ozone treatment, it comprises the following steps:
One, to be processedly film filtration concentratedly ozone contact tank need be joined, during to be then passed into by the ozone that ozone generator produces in ozone contact tank film filtration concentrated;
Two, the tail gas produced after both steps one being reacted in ozone contact tank removes the particle in tail gas by filtrator, then whether the particle content measured in tail gas meets standard, if meet standard, jump to next step, if the standard of not meeting, tail gas is continued through the particle in filtrator removal tail gas, until particle content meets standard in tail gas, then jump to next step; Described filtrator mainly filters the bulky grain thing in tail gas, and other impurity also can filtration fraction, reduces the impurity affecting tail gas and oxidation solution and react;
Three, the ozone concentration in the standard compliant tail gas of particle content that obtains of detecting step two, and the oxidation solution produced after both steps one being reacted in ozone contact tank is passed in Aerobic Pond;
If the ozone concentration that four step 3 detect is greater than X, ozone layer destroying in it is converted into oxygen by ozone breaker by the tail gas after then a part being filtered, then the tail gas after filtering with another part mixes, detect ozone concentration again, if detect, ozone concentration is still greater than 10%, then regulate the amount of the tail gas after being filtered by a part for ozone breaker, until the ozone concentration of gas is less than or equal to 10% after mixing, then jump to next step; If the ozone concentration that step 3 detects is less than or equal to 10%, then directly jump to next step; Ozone breaker is the equipment that directly can be converted into oxygen at ozone layer destroying, is being can be available on the market;
Five, the tail gas ozone concentration that step 4 obtains being less than or equal to 10% be passed into after pressure charging system supercharging in Aerobic Pond with the secondary response again of the oxidation solution in Aerobic Pond, and the oxygen concentration simultaneously detected in Aerobic Pond, if detect, the oxygen concentration in Aerobic Pond is less than 2.5mg/L, the Switch Controller Aerobic Pond then opening another road oxygen system carries out oxygen supply, until the oxygen concentration in Aerobic Pond is more than or equal to 2.5mg/L, close the switch of another road oxygen system again, then continue to detect the oxygen concentration in Aerobic Pond.Described oxygen concentration is dissolved oxygen concentration, and the oxygen concentration optimum control in this Aerobic Pond is at 2.5-6.0mg/L, and the oxidation solution reaction effect in such Aerobic Pond is better, and then makes treatment effect better.And the volume that the water in Aerobic Pond accounts for is at 85%-95%, its oxygen utilization rate is about 90%.
Claims (3)
1. utilize a disposal route for the tail gas of the film filtration concentrated rear generation of ozone treatment, it is characterized in that: it comprises the following steps:
One, to be processedly film filtration concentratedly ozone contact tank need be joined, during to be then passed into by the ozone that ozone generator produces in ozone contact tank film filtration concentrated;
Two, the tail gas produced after both steps one being reacted in ozone contact tank removes the particle in tail gas by filtrator, then whether the particle content measured in tail gas meets standard, if meet standard, jump to next step, if the standard of not meeting, tail gas is continued through the particle in filtrator removal tail gas, until particle content meets standard in tail gas, then jump to next step;
Three, the ozone concentration in the standard compliant tail gas of particle content that obtains of detecting step two, and the oxidation solution produced after both steps one being reacted in ozone contact tank is passed in Aerobic Pond;
If the ozone concentration that four step 3 detect is greater than X, ozone layer destroying in it is converted into oxygen by ozone breaker by the tail gas after then a part being filtered, then the tail gas after filtering with another part mixes, detect ozone concentration again, if detect, ozone concentration is still greater than X, then regulate the amount of the tail gas after being filtered by a part for ozone breaker, until the ozone concentration of gas is less than or equal to X after mixing, then jump to next step; If the ozone concentration that step 3 detects is less than or equal to X, then directly jump to next step;
Five, the tail gas ozone concentration that step 4 obtains being less than or equal to X be passed into after pressure charging system supercharging in Aerobic Pond with the secondary response again of the oxidation solution in Aerobic Pond, and the oxygen concentration simultaneously detected in Aerobic Pond, if detect, the oxygen concentration in Aerobic Pond is less than Y, the Switch Controller Aerobic Pond then opening another road oxygen system carries out oxygen supply, until the oxygen concentration in Aerobic Pond is more than or equal to Y, close the switch of another road oxygen system again, then continue to detect the oxygen concentration in Aerobic Pond.
2. the disposal route utilizing the tail gas of the film filtration concentrated rear generation of ozone treatment according to claim 1, is characterized in that: described X is 10-15%.
3. the disposal route utilizing the tail gas of the film filtration concentrated rear generation of ozone treatment according to claim 1, is characterized in that: described Y is 2.5-6.0mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510769287.9A CN105320163B (en) | 2015-11-12 | 2015-11-12 | The processing method of film filtration concentrated rear caused tail gas is handled using ozone |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510769287.9A CN105320163B (en) | 2015-11-12 | 2015-11-12 | The processing method of film filtration concentrated rear caused tail gas is handled using ozone |
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| CN105320163A true CN105320163A (en) | 2016-02-10 |
| CN105320163B CN105320163B (en) | 2018-02-23 |
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| CN101734828A (en) * | 2009-12-25 | 2010-06-16 | 浙江工业大学 | Process for treating and recovering dyeing sewage water |
| US20120318146A1 (en) * | 2009-11-30 | 2012-12-20 | Ark Co., Ltd. | Exhaust oxygen recycling apparatus for ozone treatment equipment, and ozone-using system having same |
| US20120318735A1 (en) * | 2010-01-22 | 2012-12-20 | Idroclean Spa | Process for the thermophilic aerobic treatment of concentrated organic waste water and the related plant |
| CN103214141A (en) * | 2012-12-07 | 2013-07-24 | 北京翰祺环境技术有限公司 | Sewage advanced treatment and recycling method capable of substantially raising economy |
| CN103958420A (en) * | 2011-12-01 | 2014-07-30 | 普莱克斯技术有限公司 | Method and system for ozone vent gas reuse in wastewater treatment |
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2015
- 2015-11-12 CN CN201510769287.9A patent/CN105320163B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120318146A1 (en) * | 2009-11-30 | 2012-12-20 | Ark Co., Ltd. | Exhaust oxygen recycling apparatus for ozone treatment equipment, and ozone-using system having same |
| CN101734828A (en) * | 2009-12-25 | 2010-06-16 | 浙江工业大学 | Process for treating and recovering dyeing sewage water |
| US20120318735A1 (en) * | 2010-01-22 | 2012-12-20 | Idroclean Spa | Process for the thermophilic aerobic treatment of concentrated organic waste water and the related plant |
| CN103958420A (en) * | 2011-12-01 | 2014-07-30 | 普莱克斯技术有限公司 | Method and system for ozone vent gas reuse in wastewater treatment |
| CN103214141A (en) * | 2012-12-07 | 2013-07-24 | 北京翰祺环境技术有限公司 | Sewage advanced treatment and recycling method capable of substantially raising economy |
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| 李树新: "臭氧尾气在污水厂曝气工艺中的回用研究", 《江苏农业科学》 * |
| 金敦: "利用臭氧深度处理污水并进行尾气回收利用的技术实例", 《给水排水》 * |
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Address after: 315192 149 Ketai Road, Wangchun Industrial Park, Haishu District, Ningbo City, Zhejiang Province Patentee after: ZHEJIANG ECO-WASTE TECHNOLOGY Co.,Ltd. Address before: 315192 No. 149 Ketai Road, Wangchun Industrial Park, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: ZHEJIANG ECO-WASTE TECHNOLOGY Co.,Ltd. |
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Denomination of invention: Treatment method of tail gas generated after filtering concentrated solution by ozone treatment membrane Effective date of registration: 20221109 Granted publication date: 20180223 Pledgee: Zhejiang Longyou rural commercial bank Limited by Share Ltd. Pledgor: ZHEJIANG ECO-WASTE TECHNOLOGY Co.,Ltd. Registration number: Y2022330002999 |