CN103896354A - Ammonia-nitrogen wastewater treatment device - Google Patents
Ammonia-nitrogen wastewater treatment device Download PDFInfo
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- CN103896354A CN103896354A CN201410132502.XA CN201410132502A CN103896354A CN 103896354 A CN103896354 A CN 103896354A CN 201410132502 A CN201410132502 A CN 201410132502A CN 103896354 A CN103896354 A CN 103896354A
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Abstract
The invention provides an ammonia-nitrogen wastewater treatment device. The ammonia-nitrogen wastewater treatment device comprises an ammonia-nitrogen wastewater pool (2), a wastewater lifting pump (12), a flow meter (14), a medicine feeder (15), an efficient coagulation settler (18), an alkali liquor adjusting tank (20), an alkali adding pump (30), a first-section wastewater circulating pool (39), a first-section circulating pump (49), a first-section first-level filter (54), a first-section second-level filter (59), a first-section vacuum degassing film device (65), a second-second wastewater circulating pool (71), a second-section circulating pump (81), a second-section filter (86), a second liquid indicator (67), a second-section direct contact type degassing film device (93), a waste acid circulating pool (98), an acid circulating pump (108) and an acid filter (112). The ammonia-nitrogen wastewater treatment device has the characteristics of being low in energy consumption, recoverable in resource, low in operation cost, simple in operation, convenient to manage, no secondary pollution, etc.
Description
Technical field
The present invention can be directly used in the processing of the ammonia nitrogen waste water of titanium white production industry, especially a kind of ammonia nitrogen wastewater treatment device.The present invention can be applicable to following field: the utilization of degassing film technology in ammonia nitrogen waste water is processed; The utilization of vacuum outgas membrane technique in ammonia nitrogen waste water is processed; The utilization of direct contact type degassing film in ammonia nitrogen waste water is processed; The utilization of acid absorption process in ammonia nitrogen waste water is processed; Directly from ammonia nitrogen waste water, reclaim ammoniacal liquor (resource recovery); Directly utilize the spent acid producing in producing to process ammonia nitrogen waste water (utilization of waste material).
Background technology
Be accompanied by the development of industrial and agricultural production, the quantity discharged of ammonia nitrogen waste water sharply rises, and has become an important factor in environmental pollution.Its source is relatively extensive: as the decomposition of itrogenous organic substance; The trade effluents such as synthetic ammonia, coking, petrochemical industry, pharmacy, food; And the use of chemical fertilizer etc. all produces a large amount of high-concentration ammonia nitrogenous wastewaters.Along with the raising of people's living standard, the harm that ammonia nitrogen waste water brings is more and more valued by the people.Many experts both domestic and external have carried out many-sided research to this, formed the technology such as ammonia blow-off method, chemical precipitation method, ion exchange method, break point chlorination, biological deamination method.The waste water relating in this patent is the ammonia nitrogen waste water of titanium white production industry, and it is mainly in production process of titanium pigment, to add ammoniacal liquor desulfurization, forms due to sulfate of ammoniac.Because organic content in the middle of production process of titanium pigment is few, so biological process denitrogenation is subject to larger restriction, and in other these treatment processs, all exist picture: secondary pollution, the shortcoming such as cost is high, clearance is relatively low, resource cannot reclaim.
Summary of the invention
The object of this invention is to provide a kind of ammonia nitrogen wastewater treatment device, the present invention is a kind of brand-new technology of utilizing vacuum outgas film and direct contact type degassing film to combine.Whole technological process is divided into two sections.One section is to utilize vacuum outgas membrane technique, the free ammonia in the ammonia nitrogen waste water producing is separated from waste water, thereby reduce the ammonia nitrogen concentration in waste water in production process of titanium pigment.Ammonia is fully recycled into the ammoniacal liquor of high density, direct reuse, in producing or selling, reduces running cost simultaneously.Secondly, in the time that ammonia nitrogen concentration is reduced to a certain degree, reach gradually vapor liquid equilibrium, now, if continue to adopt vacuum outgas membrane technique to extract the free ammonia in ammonia nitrogen waste water, efficiency is just very low.In order to raise the efficiency, further reduce the ammonia nitrogen concentration in ammonia nitrogen waste water, will be through vacuum outgas film ammonia nitrogen waste water after treatment, enter two sections and continue to process.Two sections is to adopt direct contact type degassing film technology, utilizes the Waste Sulfuric Acid producing in production process of titanium pigment, not increasing under the prerequisite of running cost, proceeds deamination, thereby makes the ammonia nitrogen concentration in ammonia nitrogen waste water can reach fast preset value.It has: the features such as energy consumption is low, resource reclaims, running cost is low, simple to operate, convenient management non-secondary pollution.
The main technical problem to be solved in the present invention has:
1, how ammonia is separated from ammonia nitrogen waste water;
2, how the ammonia nitrogen concentration in waste water is reduced to preset value;
3, how the ammonia of separating is made to the ammoniacal liquor of high density;
4, how to reduce running cost;
5, how to prevent secondary pollution.
Technical scheme of the present invention is:
A kind of ammonia nitrogen wastewater treatment device, is characterized in that comprising ammonia nitrogen waste water pond 2, waste water lifting pump 12, under meter 14, chemicals dosing plant 15, highly effective coagulation settling vessel 18, alkali lye regulating tank 20, add alkali pump 30, one section of waste water circulation pond 39, one section of recycle pump 49, one section of grade one filter 54, one section of secondary filter 59, one section of vacuum outgas film device 65, two sections of waste water circulation ponds 71, two sections of recycle pumps 81, two sections of strainers 86, the second liquidometer 67, two sections of direct contact type degassing film devices 93, spent acid circulatory pool 98, acid circulating pump 108 and sour strainer 112, described ammonia nitrogen waste water pond 2 connects chemicals dosing plant 15 and highly effective coagulation settling vessel 18 by waste water lifting pump 12, between waste water lifting pump 12 and chemicals dosing plant 15, be provided with under meter 14, 20 respectively with one sections of waste water circulation ponds 39 of highly effective coagulation settling vessel 18 and alkali lye regulating tank are connected, between alkali lye regulating tank 20 and one section of waste water circulation pond 39, be provided with and add 30, one sections of waste water circulation ponds 39 of alkali pump successively by one section of recycle pump 49, one section of grade one filter 54, one section of secondary filter 59 connects a side of one section of vacuum outgas film device 65, the opposite side of one section of vacuum outgas film device 65 connects two sections of waste water circulation ponds 71, two sections of waste water circulation ponds 71 are connected 93, two sections of direct contact type degassing film devices 93 of two sections of direct contact type degassing film devices and are connected sour circulatory pool 98 by acid circulating pump 108 with sour strainer 112 with two sections of strainers 86 by two sections of recycle pumps 81.
Described ammonia nitrogen wastewater treatment device also comprises device for absorbing tail gas 122, ammonia absorption device 121, vacuum extractor 120 and surge tank 119, described surge tank 119, vacuum extractor 120, ammonia absorption device 121 and device for absorbing tail gas 122 are connected successively, surge tank 119 is connected with one section of vacuum outgas film device 65, and device for absorbing tail gas 122 is connected with spent acid circulatory pool 98.
The invention has the beneficial effects as follows:
The present invention compares and has following advantage and positively effect with existing ammonia nitrogenous wastewater treatment technology:
1, the present invention directly extracts free ammonia and makes the ammoniacal liquor of high density from ammonia nitrogen waste water, has realized the recycling of resource;
2, the ammonia nitrogen concentration in fast reducing ammonia nitrogen waste water of the present invention, the clearance of ammonia nitrogen is high;
3, the present invention utilizes spent acid to process ammonia nitrogen waste water, has really realized utilization of waste material;
4, the present invention invest little, running cost is low, operation of equipment is simple, be easy to safeguard;
5, the present invention is without harmful byproduct generation, non-secondary pollution.
Accompanying drawing explanation
Fig. 1-1st, one of structural representation of the present invention.
Fig. 1-2 is two of structural representation of the present invention.
Fig. 1-3rd, three of structural representation of the present invention.
Fig. 1-4th, four of structural representation of the present invention.
Fig. 1-5th, five of structural representation of the present invention.
Fig. 1-6th, six of structural representation of the present invention.
Fig. 1-7th, seven of structural representation of the present invention.
Fig. 1-8th, the structural representation of recycle pump and sour strainer in Fig. 1-7.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
If Fig. 1-1 is to Fig. 1-8, a kind of ammonia nitrogen wastewater treatment device, is characterized in that comprising ammonia nitrogen waste water pond 2, waste water lifting pump 12, under meter 14, chemicals dosing plant 15, highly effective coagulation settling vessel 18, alkali lye regulating tank 20, add alkali pump 30, one section of waste water circulation pond 39, one section of recycle pump 49, one section of grade one filter 54, one section of secondary filter 59, one section of vacuum outgas film device 65, two sections of waste water circulation ponds 71, two sections of recycle pumps 81, two sections of strainers 86, the second liquidometer 67, two sections of direct contact type degassing film devices 93, spent acid circulatory pool 98, acid circulating pump 108 and sour strainer 112, described ammonia nitrogen waste water pond 2 connects chemicals dosing plant 15 and highly effective coagulation settling vessel 18 by waste water lifting pump 12, between waste water lifting pump 12 and chemicals dosing plant 15, be provided with under meter 14, 20 respectively with one sections of waste water circulation ponds 39 of highly effective coagulation settling vessel 18 and alkali lye regulating tank are connected, between alkali lye regulating tank 20 and one section of waste water circulation pond 39, be provided with and add 30, one sections of waste water circulation ponds 39 of alkali pump successively by one section of recycle pump 49, one section of grade one filter 54, one section of secondary filter 59 connects a side of one section of vacuum outgas film device 65, the opposite side of one section of vacuum outgas film device 65 connects two sections of waste water circulation ponds 71, two sections of waste water circulation ponds 71 are connected 93, two sections of direct contact type degassing film devices 93 of two sections of direct contact type degassing film devices and are connected sour circulatory pool 98 by acid circulating pump 108 with sour strainer 112 with two sections of strainers 86 by two sections of recycle pumps 81.
Also comprise device for absorbing tail gas 122, ammonia absorption device 121, vacuum extractor 120 and surge tank 119, described surge tank 119, vacuum extractor 120, ammonia absorption device 121 and device for absorbing tail gas 122 are connected successively, surge tank 119 is connected with one section of vacuum outgas film device 65, and device for absorbing tail gas 122 is connected with spent acid circulatory pool 98.
The waste water containing impurity such as ammonia nitrogens of being discharged by production plant, through the first valve 1, enters in ammonia nitrogen waste water pond 2.In ammonia nitrogen waste water pond 2, the liquid level of waste water is controlled by the first liquidometer 3.Open waste water lifting pump 12 or waste water lifting pump 13 for subsequent use, waste water is through the second valve 4 or the second standby valve 5, the 3rd valve 8 or the 3rd standby valve 9, the first vacuum breaker 10 or the first vacuum breaker 11 for subsequent use, by delivering to highly effective coagulation settling vessel 18 after under meter 14 meterings.Meanwhile, the PAM flocculation agent in chemicals dosing plant 15 is sent to waste water in high-new coagulating sedimentation device 18 after fully mixing with waste water with line mixer 17 by line mixer 16 respectively with PAC flocculation agent.In highly effective coagulation settling vessel 18, under the effect of PAM flocculation agent and PAC flocculation agent, most of colloid and suspended substance in ammonia nitrogen waste water are removed, make the SS value≤20mg/L in ammonia nitrogen waste water.Then under the control of the 4th valve 19, enter one section of waste water circulation pond 39.Liquid level in one section of waste water circulation pond 39 is to be controlled by the 3rd liquidometer 35.In the time that the liquid level in one section of waste water circulation pond 39 arrives setting height, close waste water lifting pump 12 or waste water lifting pump 13 for subsequent use, open and add alkali pump 30 or the alkali pump 31 that adds for subsequent use, alkali lye in alkali lye regulating tank 20 is sent in one section of waste water circulation pond 39 after the 5th valve 22 or the 5th standby valve 23, the 6th valve 26 or the 6th standby valve 27, the second vacuum breaker 28 or the second vacuum breaker 29 for subsequent use, the 7th valve 33, and the pH value of the ammonia nitrogen waste water in one section of waste water circulation pond 39 is adjusted.In alkali lye regulating tank 20, the liquid level of alkali lye is controlled by the 4th liquidometer 21 being arranged on alkali lye regulating tank 20.Open add alkali pump 30 or for subsequent use add alkali pump 31 in, open the temperature-sensing valve 34 of relying on oneself steam delivered in one section of waste water circulation pond 39, the waste water in one section of waste water circulation pond 39 is heated.Under the effect of stirrer 37, in the time being arranged on online PH meter 36 on one section of waste water circulation pond 39 and showing that pH values are within the scope of 10-12, close and add alkali pump 30 or the alkali pump 31 that adds for subsequent use, stop adding alkali in one section of waste water circulation pond 39; When being arranged on one section of thermometer 38 displays temperature on waste water circulation pond 39 within the scope of 25-55 ℃ time, close the temperature-sensing valve 34 of relying on oneself, stop heating in one section of waste water circulation pond 39.Open one section of recycle pump 49 or one section of recycle pump 50 for subsequent use, ammonia nitrogen waste water in one section of waste water circulation pond 39, through the 8th valve 40, the 9th valve 41 or the 9th standby valve 42, the tenth valve 45 or the tenth standby valve 46, the 3rd vacuum breaker 47 or the 3rd vacuum breaker 48 for subsequent use, be arranged under the monitoring of the thermometer 51 on pipeline, through the 11 valve the 52 or the 11 standby valve 53, enter one section of grade one filter 54 or one section of grade one filter 55 for subsequent use, then, again through the 12 valve the 56 or the 12 standby valve 57, after the 13 valve 58, enter again one section of secondary filter 59.By the ammonia nitrogen waste water after one section of cascade filtration, a side that enters film in one section of vacuum outgas film device 65 through the 14 valve 60, from one section of vacuum outgas film device 65 out after, get back in one section of waste water circulation pond 39 through the 15 valve 61, so just form the circulation of one section of ammonia nitrogen waste water.In one section of waste water circulation process, should open and close at any time and add alkali pump 30 or alkali pump 31 and the temperature-sensing valve 34 of relying on oneself of adding for subsequent use, the online PH meter 36 that makes to be arranged on one section of waste water circulation pond 39 shows that pH value reading remains within the scope of 10-12; Being arranged on one section of thermometer 38 displays temperature reading on waste water circulation pond 39 remains within the scope of 25-55 ℃.One section of vacuum outgas film device 65 adopts vacuum outgas mode, in one section of vacuum outgas film device 65, the free ammonia in ammonia nitrogen waste water is separated and enters the opposite side of film, under the effect of vacuum extractor 120, is drawn out of, after surge tank 119, enter ammonia absorption device 121.In ammonia absorption device 121, adopt the mode of three grades of absorptions, utilize pure water to absorb ammonia, make ammoniacal liquor.After ammoniacal liquor absorption is saturated, be stored to tank used for storing ammonia, can be directly used in the production of titanium dioxide.Tail gas after ammonia absorption device 121 absorbs, enters device for absorbing tail gas 122.In device for absorbing tail gas 122, the Waste Sulfuric Acid that utilizes production plant to discharge absorbs tail gas, has avoided the secondary pollution of tail gas to atmosphere, and the spent acid absorbing after saturated is still directly taken out or outward transport as spent acid.Along with the waste water in one section of waste water circulation pond 39 constantly circulates, the free ammonia in waste water is just constantly separated from waste water.After circulation several times, in the time being arranged on the ammonia nitrogen concentration arrival set(ting)value showing in one section of ammonia nitrogen on-line monitoring instrument 64 on waste water circulation pipeline, now, ammonia nitrogen waste water reaches vapor liquid equilibrium substantially, if continue to adopt one section of vacuum outgas film device 65 to remove free ammonia, efficiency will obviously reduce.Therefore, by through one section the waste water after degassed through the 16 valve 62, then after under meter 63 meterings, deliver in two sections of waste water circulation ponds 71.Liquid level in two sections of waste water circulation ponds 71 is controlled by the second liquidometer 67, in the time that the liquid level in two sections of waste water circulation ponds 71 arrives set(ting)value, closes one section of recycle pump 49 or one section of recycle pump 50 for subsequent use.Open and add alkali pump 30 or the alkali pump 31 that adds for subsequent use, alkali lye in alkali lye regulating tank 20 is sent in two sections of waste water circulation ponds 71 after the 5th valve 22 or the 5th standby valve 23, the 6th valve 26 or the 6th standby valve 27, the second vacuum breaker 28 or the second vacuum breaker the 29, the 17 valve 32 for subsequent use, and the pH value of the ammonia nitrogen waste water in two sections of waste water circulation ponds 71 is adjusted.Open add alkali pump 30 or for subsequent use add alkali pump 31 in, open the temperature-sensing valve 66 of relying on oneself steam delivered in two sections of waste water circulation ponds 71, the waste water in two sections of waste water circulation ponds 71 is heated.Under the effect of stirrer 69, in the time being arranged on online PH meter 68 on two sections of waste water circulation ponds 71 and showing that pH values are within the scope of 10-12, close and add alkali pump 30 or the alkali pump 31 that adds for subsequent use, stop adding alkali in two sections of waste water circulation ponds 71; When being arranged on two sections of thermometer 70 displays temperatures on waste water circulation pond 71 within the scope of 25-55 ℃ time, close the temperature-sensing valve 66 of relying on oneself, stop heating in two sections of waste water circulation ponds 71.Open two sections of recycle pumps 81 or two sections of recycle pumps 82 for subsequent use, ammonia nitrogen waste water in two sections of waste water circulation ponds 71, through the 18 valve 72, the 19 valve the 73 or the 19 standby valve 74, the 20 valve the 77 or the 20 standby valve 78, the 4th vacuum breaker 79 or the 4th vacuum breaker 80 for subsequent use, be arranged under the monitoring of the thermometer 83 on pipeline, through the 21 valve the 84 or the 21 standby valve 85, enter two sections of strainers 86 or two sections of strainers 87 for subsequent use, then, again after the 22 valve the 88 or the 22 standby valve 89, enter a side of film in two sections of direct contact type degassing film devices 93, from two sections of direct contact type degassing film devices 93 out after, get back in two sections of waste water circulation ponds 71 through the 23 valve 90, so just form the circulation of ammonia nitrogen waste water.In two sections of waste water circulation processes, should open and close at any time and add alkali pump 30 or alkali pump 31 and the temperature-sensing valve 66 of relying on oneself of adding for subsequent use, the online PH meter 68 that makes to be arranged on two sections of waste water circulation ponds 71 shows that pH value reading remains within the scope of 10-12; Being arranged on two sections of thermometer 70 displays temperature readings on waste water circulation pond 71 remains within the scope of 25-55 ℃.The Waste Sulfuric Acid discharging in production, through the 24 valve 95, delivers in spent acid circulatory pool 98, and the liquid level in waste water circulation pond 98 is controlled by the 5th liquidometer 96.In opening two sections of recycle pumps 81 or two sections of recycle pumps 82 for subsequent use, open acid circulating pump 108 or acid circulating pump for subsequent use 109, spent acid in spent acid circulatory pool 98, through the 25 valve 99, the 26 valve the 100 or the 26 standby valve 101, the 27 valve the 104 or the 27 standby valve 105, the 5th vacuum breaker 106 or the 5th vacuum breaker 107 for subsequent use, through the 28 valve the 110 or the 28 standby valve 111, enter sour strainer 112 or sour strainer 113 for subsequent use, then, again after the 29 valve the 114 or the 29 standby valve 115, enter the opposite side of film in two sections of direct contact type degassing film devices 93, from two sections of direct contact type degassing film devices 93 out after, get back in spent acid circulatory pool 98 through the 30 valve 116, so just form the circulation of spent acid.In two sections of direct contact type degassing film devices 93, the free ammonia in ammonia nitrogen waste water is separated from waste water, sees through film, and from two sections of direct contact type degassing film devices 93, waste water one side of film, enters into Waste Sulfuric Acid one side, is absorbed by Waste Sulfuric Acid.Because ammonia is very thorough with reacting of sulfuric acid, therefore deamination effect is very good.Along with ammonia nitrogen waste water constantly circulation in two sections of direct contact type degassing film devices 93, free ammonia in waste water is constantly absorbed, ammonia nitrogen concentration in waste water constantly reduces, in the time being arranged on the ammonia nitrogen concentration arrival set(ting)value showing in two sections of ammonia nitrogen on-line monitoring instrument 91 on waste water circulation pipeline, waste water, after the 31 valve 92, utilizes acid direct outer row when the pH value in waste water is adjusted to 6-9.Along with Waste Sulfuric Acid constantly circulation in two sections of direct contact type degassing film devices 93, the ammonia absorbing in Waste Sulfuric Acid is also more and more, when the online PH meter 97 being arranged on spent acid circulatory pool shows that pH value arrives after set(ting)value, together with absorbing the spent acid after tail gas in device for absorbing tail gas 122, still directly take out or transport outward as spent acid.
Vacuum outgas membrane technique principle of the present invention is: vacuum outgas membrane technique is a kind of novel gas/liquid membrane separation process process, mainly hydrophobicity and the ventilation property of utilizing hollow-fibre membrane, gas can see through film and liquid and can not see through the characteristic of film under certain conditions, in a side waste water flowing of film, opposite side at film vacuumizes, and the ammonia in waste water so just sees through film and enters vacuum one side from waste water one side, taken away by vacuum system, so just reach degassed object.This patent utilizes vacuum outgas membrane technique exactly, free ammonia is taken off from waste water, thereby reduce ammonia nitrogen concentration in waste water.
Direct contact type degassing film know-why of the present invention is: direct contact type degassing film technology is a kind of novel gas/liquid membrane separation process process equally, mainly hydrophobicity and the ventilation property of utilizing hollow-fibre membrane, gas can see through film and liquid and can not see through the characteristic of film under certain conditions, in a side waste water flowing of film, at the opposite side of the film dilute sulphuric acid of flowing through, ammonia in waste water like this, just see through film and enter dilute sulphuric acid one side from waste water one side, absorbed by dilute sulphuric acid, so just reach degassed object.This patent utilizes direct contact type degassing film technology exactly, free ammonia is taken off from waste water, thereby reduce ammonia nitrogen concentration in waste water.
Raising degassing efficiency know-why of the present invention is: because be mainly ammonium sulfate in the ammonia nitrogen waste water that titanium white production industry produces, exist the hydrolysising balance shown in following (1) formula in this waste water:
(1) formula is strong acid weak base salt hydrolysising balance equation in water, when add caustic soda soln in waste water, has following chemical reaction in waste water:
(NH
4)
2SO
4+2NaOH→2NH
3↑+Na
2SO
4+2H
2O……………………（2）
(2) formula is that after adding highly basic, original balance under acidic conditions is broken, and produces a large amount of free ammonias, and the concentration of free ammonia is mainly subject to the impact of two aspect factors.Be the pH value in waste water on the one hand, when the pH value in waste water is higher, the concentration of free ammonia is just higher; Be the temperature in waste water on the other hand, when the temperature in waste water is higher, the concentration of free ammonia is also just higher.In this patent, by the adjusting to pH value in waste water and temperature, can make the concentration of free ammonia in waste water reach optimum value.
Ammoniacal liquor recovery technology principle of the present invention is: in this patent, the free ammonia of separating from vacuum outgas film, by vacuum system, directly delivers to tertiary amine gas absorption tower by free ammonia, utilizes pure water directly ammonia to be absorbed, and makes the ammoniacal liquor of high density.
Sour absorption techniques principle of the present invention is: in this patent, have 2 places to utilize sour absorption techniques to absorb ammonia.The one, in direct contact type degassing film device, utilize sour absorption techniques to absorb ammonia; The 2nd, vacuum outgas membrane sepn ammonia is out remaining tail gas after tertiary amine gas absorption tower absorbs, and in tail gas absorber, has utilized sour absorption techniques to absorb ammonia.In the time that ammonia runs into dilute sulphuric acid, there is the reaction of (3) formula:
2NH
3+H
2SO
4=（NH
4）
2SO
4……………………………………………（3）
Due to the reaction of (3) formula carry out quite thorough, therefore, no matter be in direct contact type degassing film device or in tail gas absorber, all realized the quick absorption to ammonia.Deamination efficiency, the secondary pollution of having avoided on the other hand ammonia to cause air are improved on the one hand.In order to reduce running cost, in this patent, adopt the spent acid producing in production process of titanium pigment, ammonia is absorbed.
Embodiment recited above is described the preferred embodiment of the present invention; not the spirit and scope of the present invention are limited; do not departing under design concept prerequisite of the present invention; various modification and improvement that in this area, common engineering technical personnel make technical scheme of the present invention; all should fall into protection scope of the present invention, the technology contents of request protection of the present invention has all been documented in claims.
Claims (2)
1. an ammonia nitrogen wastewater treatment device, is characterized in that comprising ammonia nitrogen waste water pond (2), waste water lifting pump (12), under meter (14), chemicals dosing plant (15), highly effective coagulation settling vessel (18), alkali lye regulating tank (20), add alkali pump (30), one section of waste water circulation pond (39), one section of recycle pump (49), one section of grade one filter (54), one section of secondary filter (59), one section of vacuum outgas film device (65), two sections of waste water circulation ponds (71), two sections of recycle pumps (81), two sections of strainers (86), the second liquidometer (67), two sections of direct contact type degassing film devices (93), spent acid circulatory pool (98), acid circulating pump (108) and sour strainer (112), described ammonia nitrogen waste water pond (2) connects chemicals dosing plant (15) and highly effective coagulation settling vessel (18) by waste water lifting pump (12), between waste water lifting pump (12) and chemicals dosing plant (15), be provided with under meter (14), highly effective coagulation settling vessel (18) is connected with respectively with one section of waste water circulation pond of alkali lye regulating tank (20) (39), between alkali lye regulating tank (20) and one section of waste water circulation pond (39), be provided with and add alkali pump (30), one section of waste water circulation pond (39) is successively by one section of recycle pump (49), one section of grade one filter (54), one section of secondary filter (59) connects a side of one section of vacuum outgas film device (65), the opposite side of one section of vacuum outgas film device (65) connects two sections of waste water circulation ponds (71), two sections of waste water circulation ponds (71) are connected two sections of direct contact type degassing film devices (93) by two sections of recycle pumps (81) with two sections of strainers (86), and two sections of direct contact type degassing film devices (93) are connected sour circulatory pool (98) by acid circulating pump (108) with sour strainer (112).
2. a kind of ammonia nitrogen wastewater treatment device according to claim 1, it is characterized in that described ammonia nitrogen wastewater treatment device also comprises device for absorbing tail gas (122), ammonia absorption device (121), vacuum extractor (120) and surge tank (119), described surge tank (119), vacuum extractor (120), ammonia absorption device (121) and device for absorbing tail gas (122) are connected successively, surge tank (119) is connected with one section of vacuum outgas film device (65), and device for absorbing tail gas (122) is connected with spent acid circulatory pool (98).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109248564A (en) * | 2018-11-15 | 2019-01-22 | 山东海科化工集团有限公司 | A kind of recycle device and technique of the ammonia liquor that petrochemical industry refinery acidity water treatment facilities generates |
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| JPH06182326A (en) * | 1992-12-17 | 1994-07-05 | Tohoku Electric Power Co Inc | Removing method for ammonium ion |
| CN201485354U (en) * | 2009-08-27 | 2010-05-26 | 浙江华友钴业股份有限公司 | Novel device for processing ammonia nitrogen waste water |
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2014
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH06182326A (en) * | 1992-12-17 | 1994-07-05 | Tohoku Electric Power Co Inc | Removing method for ammonium ion |
| CN201485354U (en) * | 2009-08-27 | 2010-05-26 | 浙江华友钴业股份有限公司 | Novel device for processing ammonia nitrogen waste water |
Non-Patent Citations (2)
| Title |
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| 成晓云等: "膜式氧合器不同解吸方式对水产养殖水体中氨氮去除效果的影响", 《中国水产科学》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109248564A (en) * | 2018-11-15 | 2019-01-22 | 山东海科化工集团有限公司 | A kind of recycle device and technique of the ammonia liquor that petrochemical industry refinery acidity water treatment facilities generates |
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