CN202785772U - Novel crystallized seed crystal dephosphorization device based on ultrasonic technique reinforcement - Google Patents
Novel crystallized seed crystal dephosphorization device based on ultrasonic technique reinforcement Download PDFInfo
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- CN202785772U CN202785772U CN 201220347520 CN201220347520U CN202785772U CN 202785772 U CN202785772 U CN 202785772U CN 201220347520 CN201220347520 CN 201220347520 CN 201220347520 U CN201220347520 U CN 201220347520U CN 202785772 U CN202785772 U CN 202785772U
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Abstract
The utility model belongs to the technical field of environmental engineering water treatment, and particularly relates to a novel crystallized seed crystal dephosphorization device based on ultrasonic technique reinforcement. In the technical scheme of the novel crystallized seed crystal dephosphorization device, the novel crystallized seed crystal dephosphorization device based on ultrasonic technique reinforcement comprises a columnar filter and an ultrasonic generator, wherein one end of the ultrasonic generator is connected with an original water pipe, the other end of the ultrasonic generator is connected with the bottom of the filter by a water inlet pipe, the filter is internally provided with a filtering material layer, and a water outlet pipe is arranged at the upper part of the filter. Novel seed crystals are utilized as filtering materials to form a static bed system, and the coupling ultrasonic technique can promote the novel crystal dephosphorization efficiency, and solve the problem that low concentration urban phosphorus wastewater is hard to treat.
Description
Technical field
The utility model belongs to the environmental engineering water-treatment technology field, relates in particular to a kind of device of strengthening the Novel crystal seed crystallizing-dephosphorizing based on ultrasonic technique.
Background technology
Because the holophytic nutrition elements such as nitrogen phosphorus enter water body, eutrophication causes a series of environmental problem; Phosphorus ore resource is faced with deficient situation simultaneously, removes phosphorus superfluous in the water body and reclaims the focus that becomes field of waste water treatment research as the New Phosphorus resource.Municipal wastewater has very large recovery potentiality under its large flow prerequisite, at present main dephosphorization process comprises chemical precipitation dephosphorization, biological phosphate-eliminating, induced crystallization dephosphorization.For the defective on chemical method, biological process processing cost and the operation stability, what the induced crystallization dephosphorization technique had become a kind of extensive approval can efficient dephosphorization, can realize again the effective ways of the sustainable use of phosphor resource.Produce the precipitation with certain crystalline form by regulation and control water quality and reaction conditions and advance and reclaims, it is integrated to realize processing recovery.Can significantly reduce excess sludge and running cost than chemical method, operation stability is far above biological process.Battistoni etc. adopt stripping CO take quartz sand as crystal seed
2Method, utilize the Mg in the former water
+And NH
4 +, need not add chemical agent, can claim again with the MAP(magnesium ammonium phosphate " struvite ") form reclaim 80% phosphorus, realized the sustainable use of phosphor resource.At present relevant induced crystallization reactor such as DHV reactor have obtained practical application on the ground such as Japanese, Dutch, and this type of reactor adopts quartz sand as crystal seed more.According to principle of free energy minimum in the crystallization reaction, quartz sand crystalizing interface free energy is higher so its crystalline rate its crystallizing cycle of reactor lower and like that is longer; Utilize (the patent No.: 201010176250.2), can effectively reduce the crystalizing interface free energy, also represent good processing power in the practice of the Novel crystal seed with absorption-slow-release capability of slag manufacturing.The measure of strengthening at present crystallization reaction mainly adds medicament and reduces degree of supersaturation, and the higher while operational management of reagent cost is comparatively complicated.Consider existing crystallization reaction technique to reaction conditions have relatively high expectations, the problem such as the low-concentration phosphorus-containing wastewater intractability is large, utilizing this type of Novel crystal seed and imposing to strengthen becomes key to the issue.
It is on the other hand, relevant that to utilize acoustic wave energy affect in the crystallization reaction research of thermodynamic(al)equilibrium and kinetic equation and then promotion crystallisation process more at material, chemical industry and field of food.Ultrasonication can produce cavitation effect, perturbation effect, interfacial effect, turbulence effect, cavity effect etc. in two-phase or heterogeneous system has obvious impact to nucleation and the developmental process of crystal.Relevant ultrasonic impact experiment on the monosodium glutamate crystallisation process shows, ultrasonicly can weaken intermolecular reactive force, reduces solution viscosity so that crystallization concentration is low, and crystal yield obviously improves.In the impact research of ultrasonic field on sucrose solution crystallization nucleation process, find that the crystallization nucleation process can realize under low saturation.Can find out from above-mentioned relevant experiment that ultrasonic wave has at the growth velocity of the generating rate of nucleus, crystal and crystallization content and significantly induce promoter action.
The most crystallizing-dephosphorizing all is the situation for high-concentration phosphorus-containing wastewater in sum, to relatively poor such as the treatment effect of city low-concentration phosphorus-containing wastewater, and tradition to add medicament reinforcement cost higher; It is lower that present crystallization reaction device, more options quartz sand on the crystal seed, crystal seed are difficult to its crystallization reaction speed of recycling, and the reaction cycle of operation is long and operating load is low; Simulation phosphorus-containing wastewater and water outlet phosphorus concentration that the research field most of relevant induced crystallization reactor still is limited to high density are larger, lower to the low-concentration phosphorus-containing wastewater processing efficiency, in design, adopt fluidization more, it is large that it processes energy consumption, and operational management is complicated.In water treatment field, utilizing the research of ultrasound-enhanced crystallizing-dephosphorizing aspect is a white space still, has no relevant report.
Summary of the invention
The purpose of this utility model is, overcomes the deficiencies in the prior art, and a kind of device of strengthening the Novel crystal seed crystallizing-dephosphorizing based on ultrasonic technique is provided.The utility model utilizes Novel crystal seed to form fixed bed system as filtrate, the coupling ultrasonic technology, and the crystallizing-dephosphorizing usefulness of promotion Novel crystal seed can solve the unmanageable problem of lower concentration city phosphorus-containing wastewater.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of device of strengthening the Novel crystal seed crystallizing-dephosphorizing based on ultrasonic technique, comprise column strainer and ultrasonic generator, one end of described ultrasonic generator is connected with raw water tubes, the other end is connected with the bottom of strainer by water inlet pipe, in the described strainer filter material layer is arranged, rising pipe is arranged at the top of strainer.Adopt on the array mode preposition ultrasonic-form that crystal seed filters, this form is carried out supersound process with the ultrasonic filtration unit leading portion that places to water inlet, reduces water inlet viscosity, shortens inductive phase, and then promote the induced crystallization process of crystal seed, the device structure is simple and easy.
The bottom of described strainer is connected with the back flushing water pipe.The back flushing water pipe connects the back flushing water tank.
The bottom of described strainer is connected with aeration tube.
Supporting layer is arranged at the bottom at described filter material layer.Be the gravel supporting layer.
Sidewall at described filter precoat has thief hole, is provided with thief hole at filter material layer along journey and is used for water determination and filtrate microscopy.
Strainer top overflow port is arranged.On described water inlet pipe and back flushing water pipe, valve is arranged respectively.At water inlet pipe water pump is arranged.
Described filter material layer is the modified particles slag.Utilize the modified particles slag dephosphorizing crystal seed with certain slowly-releasing adsorptive power of slag by hydrothermal method preparation as the fixed bed filtrate.
Consider that higher concentration difference can improve degree of supersaturation and be conducive to crystallisation process, adopt the fixed bed based on PF reactor design theory on this utility model reactor design, can be under the prerequisite that guarantees phosphor-removing effect, maximum amplitude reduces operation energy consumption; Tool has great advantage after this device back flushing, and its accelerating effect can effectively shorten the cycle of operation and then improve operating load.Utilize simultaneously acoustic energy can change state of matter and impel crystallization to finish the principle of phase transformation, this utility model coupling ultrasonic technology is finished intensive treatment, forms a novel environmentally friendly combination process.This device can effectively reduce floor space, has extremely strong suitability in city sewage deep treatment stage and industrial phosphorus-containing field of wastewater.
The beneficial effects of the utility model are: the utility model utilizes Novel crystal seed to form fixed bed system as filtrate, the coupling ultrasonic technology, and the crystallizing-dephosphorizing usefulness of promotion Novel crystal seed can solve the unmanageable problem of lower concentration city phosphorus-containing wastewater.Consider that higher concentration difference can improve degree of supersaturation and be conducive to crystallisation process, adopt the fixed bed based on PF reactor design theory on this invention reactor design, can be under the prerequisite that guarantees phosphor-removing effect, maximum amplitude reduces operation energy consumption; Tool has great advantage after this device back flushing, and its accelerating effect can effectively shorten the cycle of operation and then improve operating load.Utilize simultaneously acoustic energy can change state of matter and impel crystallization to finish the principle of phase transformation, this utility model coupling ultrasonic technology is finished intensive treatment, forms a novel environmentally friendly combination process.This device can effectively reduce floor space, has extremely strong suitability in city sewage deep treatment stage and industrial phosphorus-containing field of wastewater.
Analyze by experiment, utilize this method of ultrasound-enhanced Novel crystal seed crystallizing-dephosphorizing to realize effective processing to low-concentration phosphorus-containing wastewater (less than 10mg/L), realized calcium phosphate powder (HAP) crystallization, the water outlet phosphorus concentration has reached " urban wastewater treatment firm pollutant emission standard (GB18918-2002) " one-level A emission standard less than 0.5mg/L.The action effect of comparative analysis Vltrasonic device, when water inlet directly entered filtration unit, regulation and control found that water outlet is up to standard, shows that thus supersound process has played good promoter action to the crystallization reaction process when HRT is about 50min.Present method requires lower to water inlet pH, give full play to the slow-release capability of novel filtrate, and the coupling ultrasonic technology impels nucleus to form fast, has great advantage than traditional crystallization process tool.
Description of drawings
Accompanying drawing 1 is apparatus structure synoptic diagram of the present utility model.
Among the figure: 1-raw water tubes, 2-ultrasonic generator, 3-water inlet pipe, 4-water pump, 5-valve, 6-supporting layer, 7-filter material layer, 8-overflow port, 9-strainer, 10-rising pipe, 11-thief hole, 12-aeration tube, 13-back flushing water pipe.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Embodiment
According to shown in Figure 1, a kind of device of strengthening the Novel crystal seed crystallizing-dephosphorizing based on ultrasonic technique, comprise column strainer 9 and ultrasonic generator 2, one end of ultrasonic generator 2 is connected with raw water tubes 1, the other end is connected with the bottom of strainer 9 by water inlet pipe 3, in the described strainer 9 filter material layer 7 is arranged, supporting layer 6 is arranged at the bottom of filter material layer 7, sidewall at strainer 9 filter material layers has thief hole 11, rising pipe 10 is arranged at the top of strainer 9, the bottom of strainer 9 is connected with back flushing water pipe 13, the bottom is connected with aeration tube 12, strainer 9 top overflow port 8 is arranged, on water inlet pipe 3 and back flushing water pipe 13, valve 5 is arranged respectively, at water inlet pipe 3 water pump 4 is arranged, filter material layer 7 is the modified particles slag.
Claims (8)
1. device of strengthening the Novel crystal seed crystallizing-dephosphorizing based on ultrasonic technique, it is characterized in that: comprise column strainer and ultrasonic generator, one end of described ultrasonic generator is connected with raw water tubes, the other end is connected with the bottom of strainer by water inlet pipe, in the described strainer filter material layer is arranged, rising pipe is arranged at the top of strainer.
2. according to claim 1ly a kind ofly strengthen the device of Novel crystal seed crystallizing-dephosphorizing based on ultrasonic technique, it is characterized in that: the bottom of described strainer is connected with the back flushing water pipe.
3. according to claim 1ly a kind ofly strengthen the device of Novel crystal seed crystallizing-dephosphorizing based on ultrasonic technique, it is characterized in that: the bottom of described strainer is connected with aeration tube.
4. according to claim 1ly a kind ofly strengthen the device of Novel crystal seed crystallizing-dephosphorizing based on ultrasonic technique, it is characterized in that: supporting layer is arranged at the bottom at described filter material layer.
5. according to claim 1ly a kind ofly strengthen the device of Novel crystal seed crystallizing-dephosphorizing based on ultrasonic technique, it is characterized in that: the sidewall at described filter precoat has thief hole.
6. according to claim 1ly a kind ofly strengthen the device of Novel crystal seed crystallizing-dephosphorizing based on ultrasonic technique, it is characterized in that: described strainer top overflow port is arranged.
7. a kind of device based on ultrasonic technique reinforcement Novel crystal seed crystallizing-dephosphorizing according to claim 2 is characterized in that: on described water inlet pipe and back flushing water pipe valve is arranged respectively.
8. a kind of device based on ultrasonic technique reinforcement Novel crystal seed crystallizing-dephosphorizing according to claim 1 is characterized in that: at described water inlet pipe water pump is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347520 CN202785772U (en) | 2012-07-18 | 2012-07-18 | Novel crystallized seed crystal dephosphorization device based on ultrasonic technique reinforcement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347520 CN202785772U (en) | 2012-07-18 | 2012-07-18 | Novel crystallized seed crystal dephosphorization device based on ultrasonic technique reinforcement |
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| CN202785772U true CN202785772U (en) | 2013-03-13 |
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ID=47813079
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|---|---|---|---|
| CN 201220347520 Expired - Fee Related CN202785772U (en) | 2012-07-18 | 2012-07-18 | Novel crystallized seed crystal dephosphorization device based on ultrasonic technique reinforcement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152431A (en) * | 2015-09-22 | 2015-12-16 | 巫立斌 | Sewage treatment equipment with drip washing device |
| CN112876292A (en) * | 2021-01-14 | 2021-06-01 | 生态环境部南京环境科学研究所 | Pretreatment method for enhancing extraction of nitrogen in landfill leachate |
-
2012
- 2012-07-18 CN CN 201220347520 patent/CN202785772U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152431A (en) * | 2015-09-22 | 2015-12-16 | 巫立斌 | Sewage treatment equipment with drip washing device |
| CN107162296A (en) * | 2015-09-22 | 2017-09-15 | 朱保生 | Ke Shui, the sewage disposal device with elution device of mud shunting a kind of method of work |
| CN105152431B (en) * | 2015-09-22 | 2017-12-22 | 盐城服务业集聚区投资有限公司 | A kind of sewage disposal device with elution device |
| CN112876292A (en) * | 2021-01-14 | 2021-06-01 | 生态环境部南京环境科学研究所 | Pretreatment method for enhancing extraction of nitrogen in landfill leachate |
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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: 20130313 Termination date: 20160718 |
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| CF01 | Termination of patent right due to non-payment of annual fee |