CN203904125U - Ammonia nitrogen sewage treating apparatus - Google Patents
Ammonia nitrogen sewage treating apparatus Download PDFInfo
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- CN203904125U CN203904125U CN201420308970.3U CN201420308970U CN203904125U CN 203904125 U CN203904125 U CN 203904125U CN 201420308970 U CN201420308970 U CN 201420308970U CN 203904125 U CN203904125 U CN 203904125U
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- ammonia
- reaction tank
- tank
- treatment facility
- nitrogen sewage
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Abstract
The utility model relates to an ammonia nitrogen sewage treating apparatus. The ammonia nitrogen sewage treating apparatus comprises a mixing tank (1), a deamination reactor (2), a condenser (3) and a liquid ammonia storage tank (4), all of which are orderly connected together, wherein a sewage inlet is formed in the mixing tank (1); the mixing tank (1) is further connected with an additive storage tank (5); the deamination reactor (2) comprises a support (211), a reaction tank (210), a microwave emission tube (208) and an ammonia gas collecting cover (209); the reaction tank (210) is fixed on the support (211); the microwave emission tube (208) and the ammonia gas collecting cover (209) are located above the reaction tank (210); an ammonia gas outlet (205) is formed in the top of the ammonia gas collecting cover (209) and an exhaust fan (206) is arranged on the top of the ammonia gas collecting cover (209). The ammonia nitrogen sewage treating apparatus is capable of releasing aqueous ammonia dissolved in water in the form of ammonia gas by use of the thermal effect of the microwave on polar molecules, thereby reducing the ammonia nitrogen concentration in the sewage and achieving the purposes of treatment and emission; the released ammonia gas can be reutilized to meet the sustainable development requirements.
Description
Technical field
The utility model relates to sewage disposal device, more particularly, relates to a kind of high concentration ammonia nitrogen sewage treatment facility.
Background technology
Along with the development of industrial production technology, the environmental problem that trade effluent brings is increasingly serious, and particularly how ammonia nitrogen waste water, effectively process these ammonia nitrogen waste waters, and on the basis that guarantees industrial development, building good living environment becomes the task of top priority.The statistical information of 2008 shows 571.7 hundred million tons of national wastewater emission amounts, and approximately 241.7 hundred million tons of discharged volume of industrial waste water, account for 42.3% of wastewater emission amount; 330.0 hundred million tons of sanitary sewage quantity dischargeds, account for 57.7% of wastewater emission amount; 1,270,000 tons of whole nation waste water total ammonia nitrogen quantity dischargeds, wherein trade effluent ammonia nitrogen quantity discharged is 29.7 ten thousand tons, 97.3 ten thousand tons of sanitary sewage ammonia nitrogen quantity dischargeds.This severe contamination China's water body.In the discharge of industry ammonia nitrogen waste water: approximately 2.6 hundred million tons of coking industries, approximately 1,500,000,000 tons of chemical industry of chemical fertilizer industries, dyeing accounts for 300,000,000 tons, and paper industry accounts for 200,000,000 tons, and rare-earth trade accounts for 1.4 hundred million tons.
NH
3the indispensable nutritive substance of biological growth, but excessive NH in sewage
3can make nutritive substance enrichment in water, cause algae and other planktonic organisms breed rapidly, Dissolved Oxygen in Water amount declines, water quality deterioration, causes fish or other biological mortality, and ammonia nitrogen pollutants a large amount of in trade effluent need can carry out safety dumping through further processing.
Ammonia nitrogen is the main component of various industrial sewage, and the removal of ammonia nitrogen is a very thorny global difficult problem always.Traditionally ammonia nitrogen in high density trade effluent (ammonia nitrogen concentration is greater than 1000mg/L) adopted and regulate pH value, utilize high-temperature steam to carry out the method removal ammonia nitrogens such as stripping, but all exist, energy consumption is large, processing cost is high, water outlet also needs the problems such as secondary treatment ability qualified discharge.
The at present domestic distil process that adopts is removed the ammonia in waste water more, along with the development of technology also has the ammonia process such as the indirect ammonia still process of heat-conducting oil heating, the indirect ammonia still process of diamond heating, the ammonia still process of steam heating reboiler, but the most energy consumption of these ammonia treatment techniques is high, equipment is complicated, takes up an area the shortcomings such as in large scale.
Adopt the steam consumption of the direct ammonia still process of water vapor large, increased efflux wastewater amount.The technique of the indirect ammonia distillation process of heat-conducting oil heating is comparatively complicated, and construction investment is large.Thermal oil long-time running under 250 ℃ of conditions easily causes thermal oil spoilage problems, and a small amount of splitting gas enters atmosphere also can be to environment, within common 1 year, needs to change once new thermal oil, and the about 8000-9000 unit/T of thermal oil price, has increased cost at present.Gas consumption amount is large, about 25-33m
3/ ton ammoniacal liquor.The indirect ammonia distillation process of diamond heating needs to increase a set of tube furnace and an ammonia circulation pump on the direct ammonia steaming system of original water vapor, technique comparatively complexity needs consume fuel, tube furnace furnace tube material be there are certain requirements, tube furnace is naked light equipment simultaneously, requirement is comparatively large with the safe distance in inflammable and explosive region, otherwise this technique exists potential safety hazard.At the bottom of the indirect ammonia distillation process of steam heating adopts water vapor to pass through ammonia still, deposed ammonia reboiler indirect heating is as ammonia still process energy thermal source, steam must guarantee enough pressure, source of the gas is sufficient and stable, need set up reboiler and circulating pump system, and power consumption is high but do not increase wastewater flow rate.
Summary of the invention
The technical problems to be solved in the utility model is, the ammonia-nitrogen sewage that a kind of energy consumption is low, processing cost is low treatment facility is provided.
The utility model solves the technical scheme that its technical problem adopts: construct a kind of ammonia-nitrogen sewage treatment facility, comprise the mixing tank connecting successively, deamination reaction device, condenser and liquefied ammonia hold-up vessel, described mixing tank is provided with sewage inlet, described mixing tank is also connected with additive storage tank, described deamination reaction device comprises support, reaction tank, microwave launcher tube and ammonia collecting hood, described reaction tank is fixed on support, described reaction tank is connected with described mixing tank by pipe connecting, described microwave launcher tube and ammonia collecting hood are positioned at reaction tank top, the top of described ammonia collecting hood is provided with ammonia air outlet and vacuum fan.
In such scheme, described pipe connecting is provided with the first valve, water pump and under meter.
In such scheme, the below of described reaction tank is provided with detection arm, and described detection arm is provided with the second valve and ammonia concentration detector.
In such scheme, the top of described ammonia collecting hood is provided with tensimeter and temperature sensor.
In such scheme, be provided with the dividing plate that a plurality of intervals shift to install in described reaction tank, described dividing plate makes to form in described reaction tank the flow passage of " snakelike ".
In such scheme, described reaction tank is provided with water inlet pipe and rising pipe, and the diameter of described rising pipe is greater than the diameter of water inlet pipe.
In such scheme, described reaction tank outside is provided with housing, and described housing is provided with viewing window.
Implement ammonia-nitrogen sewage treatment facility of the present utility model, there is following beneficial effect:
1, the additive in additive storage tank carries out pH regulator and dosing catalytic treatment to sewage, by pretreated sewage, enter and in reactor, carry out microwave treatment, after the ammonia condensation producing, by liquefied ammonia hold-up vessel, reclaim, sewage of low concentration after processing discharges by detecting qualified laggard column criterion, waste heat recycles, raise the efficiency energy-conserving and environment-protective.
2, the utility model utilizes microwave the ammoniacal liquor being dissolved in water can be decomposed out with the form of ammonia to the heat effect of polar molecule, thereby the ammonia nitrogen concentration in reduction sewage, reach the object of processing discharge, and the ammonia decomposing out can be re-used, turn waste into wealth, meet the requirement of Sustainable development.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the utility model ammonia-nitrogen sewage treatment facility;
Fig. 2 is the internal structure schematic diagram of deamination reaction device;
Fig. 3 is the vertical view of reaction tank;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the external structure schematic diagram of deamination reaction device;
Fig. 6 is the left view of Fig. 5.
Embodiment
For technical characterictic of the present utility model, object and effect being had more clearly, understand, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
As shown in Fig. 1-Fig. 6, ammonia-nitrogen sewage treatment facility of the present utility model comprises mixing tank 1, deamination reaction device 2, condenser 3 and the liquefied ammonia hold-up vessel 4 connecting successively, and mixing tank 1 is provided with sewage inlet, and mixing tank 1 is also connected with additive storage tank 5.
Industrial sewage is of a great variety, according to the main component of the different sewage of kind, be also not quite similar, therefore, industrial sewage is carried out microwave treatment before, also need sewage to carry out the pre-treatment in early stage, first to carry out filtration treatment and remove the solid impurity in sewage, avoid line clogging and improve microwave treatment efficiency.In order to meet the processing condition of microwave treatment, the additive in additive storage tank 5 carries out pH regulator and dosing catalytic treatment to sewage.PH regulator and dosing catalytic treatment are prior art, do not repeat them here.By pretreated sewage, enter and in reactor, carry out microwave treatment, after the ammonia condensation producing, by liquefied ammonia hold-up vessel 4, reclaim, the sewage of low concentration after processing discharges by detecting qualified laggard column criterion, and waste heat recycles, raise the efficiency energy-conserving and environment-protective.
Deamination reaction device 2 comprises support 211, reaction tank 210, microwave launcher tube 208 and ammonia collecting hood 209.Support 211 mainly plays a part to support, reaction tank 210 is fixed on support 211, reaction tank 210 is connected with mixing tank 1 by pipe connecting, and microwave launcher tube 208 and ammonia collecting hood 209 are positioned at reaction tank 210 tops, and the top of ammonia collecting hood 209 is provided with ammonia air outlet 205 and vacuum fan 206.It is interior under microwave irradiation that sewage in mixing tank 1 enters reaction tank 210, isolates ammonia.
Microwave is a kind of frequency electromagnetic waves, and its range of frequency is (corresponding wavelength is 100～0.01cm) between 300MHz and 300GMz, and it has four large fundamental characteristics, i.e. fluctuation, high frequency, thermal property and non-thermal propertys of wave particle duality and ripple.In the present embodiment, the microwave transmitting frequency f=2450MHZ of microwave launcher tube 208.For polar molecule, microwave shows obvious thermal property, for non-polar molecule because its specific inductivity is little, a little less than the receptivity of microwave, microwave thermal characteristic is not obvious, and when heated material is in microwave field, its polar molecule is by with microwave frequency, the high frequency with tens times per second swings back and forth, produce rapidly a large amount of heat energy, this polar substance could absorb micro-wave energy and be converted into the selectivity principle of heating that heat energy is exactly microwave heating.The gordian technique of the separated ammonia of microwave heating is to utilize ammonia to electromagnetic principle of absorption, realize electromagnetic energy---the conversion between heat energy, promote the carrying out of ammoniacal liquor decomposes process, formal solution by the ammonia in ammoniacal liquor with gaseous state separates out, the thermal conversion efficiency of microwave heating can reach more than 95%, can put forward high-octane utilization ratio.
Ammonia is polar molecule, and water is also polar molecule, so ammonia is very easily water-soluble, can be water-soluble with the form of chemical combination state with the volume ratio of 700:1 in water, and the equation of reaction is:
NH
3+H
2O→NH
4OH
This reaction is thermopositive reaction, therefore provides certain heat can promote the forward of reaction to carry out, and makes NH
4oH resolves to NH
3, parsing degree is by the energy size and the liquid-gas interface NH that provide
3dividing potential drop and determine, energy is constantly provided or reduces liquid-gas interface NH
3dividing potential drop can strengthen NH
4oH resolves to NH
3.Research shows the NH in microwave reactor under certain vacuum condition
4oH is more than 98% NH after microwave irradiation
3can be resolved and enter gas phase, after condensation, can become concentration and be about 16% strong aqua and carry out recycling.In a certain specific embodiment, take high concentration coking as processing raw material, its ammonia nitrogen concentration is 1350mg/L, by the utility model equipment, is undertaken after subsequent disposal, ammonia nitrogen concentration drops to below 200mg/L.
Further, pipe connecting is provided with the first valve 201, water pump 202 and under meter 203.The below of reaction tank 210 is provided with detection arm, detects arm and is provided with the second valve 212 and ammonia concentration detector 213.The top of ammonia collecting hood 209 is provided with tensimeter 204 and temperature sensor 207.Microwave plumbing launched microwave provides wave source, and temperature sensor 207 and pressure transmitter, for the Heating temperature of test reaction pond 210 interior sewage and the gaseous tension of reactor inner chamber, carry out condition monitoring.
Further, process the hydraulic detention time t=5min of waste water in reaction tank 210, the flow of waste water is 2L/min, in order to guarantee waste water, in reaction tank 210 flow process, accept the homogeneity of microwave irradiation, need slow down flow velocity with and equally distributed design in flow process, therefore be provided with the flow passage guiding current that dividing plate 214 that a plurality of intervals shift to install makes the interior formation of reaction tank 210 " snakelike " in reaction tank 210, guarantee flow velocity and mobile homogeneity with this.The material of reaction tank 210 and baffle plate all adopts plastic foam plate, under satisfied carrying and working conditions, reduces costs.
Further, reaction tank 210 is provided with water inlet pipe 215 and rising pipe 216, and the diameter of rising pipe 216 is greater than the diameter of water inlet pipe 215, can guarantee Quick water exit when being necessary.Reaction tank 210 base plate bottoms increase leg, adopt so built on stilts design to be beneficial to drawing with waste water of water shoot and discharge.Reaction tank 210 outer setting housings 217, the material of housing 217 is stainless-steel sheet, can effectively stop microwave leakage.Viewing window 218 and relief door are installed on housing 217.
The utility model utilizes material to electromagnetic principle of absorption, can realize electromagnetic energy---the conversion between heat energy.Be direct heating, do not increase again new waste water, the thermal conversion efficiency of microwave heating is high, and more than 95%, and steam heating is more than 15%, and Infrared Heating is more than 50%.Utilize microwave the ammoniacal liquor being dissolved in water can be decomposed out with the form of ammonia to the heat effect of polar molecule, thereby the ammonia nitrogen concentration in reduction sewage, reach the object of processing discharge, and the ammonia decomposing out can be re-used, and turns waste into wealth and meets the requirement of Sustainable development.In addition utilize advanced technical process and microwave technology exploitation treatment facility energy-conservation, efficient, that volume is little also to there is huge economic worth and social benefit.
The energy consumption of the utility model and other deamination technique and economic analysis are as shown in table 1-1.
The economic analysis of the various deamination techniques of table 1-1
| Project | Open steam | Indirect steam | Diamond heating | Heat-conducting oil heating | Microwave deamination |
| Wastewater flow rate t/h | 15 | 15 | 15 | 15 | 15 |
| Steam consumption t/h | 3 | 3.8 | 0 | 0 | 0 |
| Increase waste water t/h | 3 | 0 | 0 | 0 | 0 |
| Power consumption kwh | 22 | 52 | 59 | 80 | 180 |
| Gas using quantity m 3/h | 0 | 0 | 400 | 400 | 0 |
| Consumption thermal oil t/a | 0 | 0 | 0 | 2 | 0 |
| Consumption alkali takes ten thousand yuan/a | 108 | 108 | 108 | 108 | 108 |
| Cost unit/m 3 | 33.2 | 41 | 32.3 | 33.2 | 25.4 |
| Invest ten thousand yuan | 202 | 230 | 350 | 420 | 260 |
| Ten thousand yuan/a of running cost | 436 | 561.74 | 466 | 478 | 202 |
By reference to the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not departing from the scope situation that the utility model aim and claim protect, also can make a lot of forms, within these all belong to protection of the present utility model.
Claims (7)
1. an ammonia-nitrogen sewage treatment facility, it is characterized in that, comprise the mixing tank (1) connecting successively, deamination reaction device (2), condenser (3) and liquefied ammonia hold-up vessel (4), described mixing tank (1) is provided with sewage inlet, described mixing tank (1) is also connected with additive storage tank (5), described deamination reaction device (2) comprises support (211), reaction tank (210), microwave launcher tube (208) and ammonia collecting hood (209), described reaction tank (210) is fixed on described support (211), described reaction tank (210) is connected with described mixing tank (1) by pipe connecting, described microwave launcher tube (208) and ammonia collecting hood (209) are positioned at reaction tank (210) top, the top of described ammonia collecting hood (209) is provided with ammonia air outlet (205) and vacuum fan (206).
2. ammonia-nitrogen sewage treatment facility according to claim 1, is characterized in that, described pipe connecting is provided with the first valve (201), water pump (202) and under meter (203).
3. ammonia-nitrogen sewage treatment facility according to claim 1, is characterized in that, the below of described reaction tank (210) is provided with detection arm, and described detection arm is provided with the second valve (212) and ammonia concentration detector (213).
4. ammonia-nitrogen sewage treatment facility according to claim 1, is characterized in that, the top of described ammonia collecting hood (209) is provided with tensimeter (204) and temperature sensor (207).
5. ammonia-nitrogen sewage treatment facility according to claim 1, it is characterized in that, in described reaction tank (210), be provided with the dividing plate (214) that a plurality of intervals shift to install, described dividing plate (214) makes to form in described reaction tank (210) flow passage of " snakelike ".
6. ammonia-nitrogen sewage treatment facility according to claim 1, it is characterized in that, described reaction tank (210) is provided with water inlet pipe (215) and rising pipe (216), and the diameter of described rising pipe (216) is greater than the diameter of water inlet pipe (215).
7. ammonia-nitrogen sewage treatment facility according to claim 1, is characterized in that, described reaction tank (210) outside is provided with housing (217), and described housing (217) is provided with viewing window (218).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420308970.3U CN203904125U (en) | 2014-06-11 | 2014-06-11 | Ammonia nitrogen sewage treating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420308970.3U CN203904125U (en) | 2014-06-11 | 2014-06-11 | Ammonia nitrogen sewage treating apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN203904125U true CN203904125U (en) | 2014-10-29 |
Family
ID=51778413
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420308970.3U Expired - Fee Related CN203904125U (en) | 2014-06-11 | 2014-06-11 | Ammonia nitrogen sewage treating apparatus |
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|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114642895A (en) * | 2020-12-18 | 2022-06-21 | 陕西青朗万城环保科技有限公司 | High concentration ammonia treatment facility |
| CN114956249A (en) * | 2021-02-25 | 2022-08-30 | 陕西青朗万城环保科技有限公司 | Microwave-based gas stripping deamination method and control system thereof |
| CN116924472A (en) * | 2023-09-14 | 2023-10-24 | 崇义章源钨业股份有限公司 | Comprehensive utilization method of tungsten-containing magnesium ammonium phosphate slag |
-
2014
- 2014-06-11 CN CN201420308970.3U patent/CN203904125U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114642895A (en) * | 2020-12-18 | 2022-06-21 | 陕西青朗万城环保科技有限公司 | High concentration ammonia treatment facility |
| CN114956249A (en) * | 2021-02-25 | 2022-08-30 | 陕西青朗万城环保科技有限公司 | Microwave-based gas stripping deamination method and control system thereof |
| CN116924472A (en) * | 2023-09-14 | 2023-10-24 | 崇义章源钨业股份有限公司 | Comprehensive utilization method of tungsten-containing magnesium ammonium phosphate slag |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20141029 Termination date: 20150611 |
|
| EXPY | Termination of patent right or utility model |