CN111348791A - Advanced treatment device and treatment method for high-concentration ammonia nitrogen wastewater - Google Patents
Advanced treatment device and treatment method for high-concentration ammonia nitrogen wastewater Download PDFInfo
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- CN111348791A CN111348791A CN201811564867.4A CN201811564867A CN111348791A CN 111348791 A CN111348791 A CN 111348791A CN 201811564867 A CN201811564867 A CN 201811564867A CN 111348791 A CN111348791 A CN 111348791A
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F1/00—Treatment of water, waste water, or sewage
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Abstract
The invention discloses a high-concentration ammonia nitrogen wastewater advanced treatment device and a treatment method. The invention discloses a high-concentration ammonia nitrogen wastewater advanced treatment device which comprises an ammonia nitrogen wastewater storage pool, a sedimentation pool, a first pH adjusting device and a blow-off tower water inlet which are sequentially connected through pipelines, wherein a blow-off tower air outlet is sequentially connected with a spraying device and a spraying absorption liquid storage pool through pipelines, a blow-off tower water outlet is sequentially connected with an adsorption pool, a photocatalytic treatment device, a second pH adjusting device and a reverse osmosis treatment device through pipelines, a reverse osmosis treatment device concentrated water outlet is connected with an evaporative crystallization device through a pipeline, and a reverse osmosis treatment device fresh water outlet is connected with a regeneration reuse water storage tank through a pipeline. The advanced treatment device and the treatment method for the high-concentration ammonia nitrogen wastewater disclosed by the invention have high ammonia nitrogen removal rate, solve the problems of low treatment efficiency, high production cost and standard discharge of the existing high-concentration ammonia nitrogen wastewater, realize zero resource discharge and avoid secondary pollution.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a high-concentration ammonia nitrogen wastewater advanced treatment device and a treatment method.
Background
In recent years, with the rapid development of economy in China, the problem of water pollution is increasingly prominent, and the current economic development and human survival are seriously influenced. The ammonia nitrogen wastewater is generated by a plurality of ways, such as ammonia production enterprises, application enterprises, metallurgy, coal chemical industry, glass production, pesticide plants, food processing, breeding and other industries, and kitchen wastewater in daily life of people, garbage leachate of garbage landfill sites and the like. Ammonia nitrogen wastewater becomes one of the wastewater pollution sources, and the national treatment of ammonia nitrogen wastewater pays great attention to the ammonia nitrogen wastewater, and the discharge standard is continuously improved.
The traditional ammonia nitrogen wastewater treatment method mainly comprises an evaporation concentration method, a breakpoint chlorination method, an ammonia gas stripping method, an ion exchange method, a biological method and the like. Although each of the methods has characteristics, the methods also have certain limitations, and have the defects of low efficiency, secondary pollution and the like in different degrees, so that the production cost is high.
The photocatalytic oxidation technology is a new technology developed in recent years for treating drinking water and wastewater, can be carried out at normal temperature and normal pressure, does not produce secondary pollution, has a wide application range, has incomparable superiority with other treatment methods, has become a leading-edge research subject of international environmental control, and is highly valued by various countries in the world.
Disclosure of Invention
The invention aims to overcome the defects and provides the advanced treatment device and the treatment method for the high-concentration ammonia nitrogen wastewater, the ammonia nitrogen removal rate is high, the problems of low treatment efficiency, high production cost and standard discharge of the existing high-concentration ammonia nitrogen wastewater are solved, the resource zero discharge is realized, the secondary pollution is avoided, and the device and the method have important environmental benefits and economic benefits.
In order to achieve the above object, the invention provides a high-concentration ammonia nitrogen wastewater advanced treatment device, which comprises an ammonia nitrogen wastewater storage tank, a sedimentation tank, a first pH adjusting device, a stripping tower, a spraying device, a spraying absorption liquid storage tank, an adsorption tank, a photocatalytic treatment device, a second pH adjusting device, a reverse osmosis treatment device, an evaporative crystallization device and a regenerated recycle water storage tank; the air stripping tower comprises a tower body, a water inlet, a water outlet and a gas outlet are arranged on the tower body, the ammonia nitrogen wastewater storage pool is sequentially connected with the sedimentation tank, the first pH adjusting device and the air stripping tower water inlet through pipelines, the air outlet of the air stripping tower is sequentially connected with the spraying device and the spraying absorption liquid storage pool through pipelines, the water outlet of the air stripping tower is sequentially connected with the adsorption pool, the photocatalytic treatment device, the second pH adjusting device and the reverse osmosis treatment device through pipelines, the concentrated water outlet of the reverse osmosis treatment device is connected with the evaporative crystallization device through a pipeline, and the fresh water outlet of the reverse osmosis treatment device is connected with the regeneration and reuse water storage tank through a pipeline;
the ammonia nitrogen wastewater storage pond with be equipped with first elevator pump on the pipeline between the sedimentation tank, the sedimentation tank with be equipped with the second elevator pump on the pipeline between the first pH adjusting device, first pH adjusting device with be equipped with the third elevator pump on the pipeline between the air stripping tower water inlet, the adsorption tank with be equipped with the fourth elevator pump on the pipeline between the photocatalytic treatment device, the photocatalytic treatment device with be equipped with the fifth elevator pump on the pipeline between the second pH adjusting device, the second pH adjusting device with be equipped with the booster pump on the pipeline between the reverse osmosis unit, the dense water delivery port of reverse osmosis treatment device with be equipped with the sixth elevator pump on the pipeline between the evaporation crystallization device.
Further, the first pH adjusting device comprises a first pH adjusting tank, a first pH detector, a first pH adjusting agent storage tank, a first metering pump, a first dosing pump, a first instrument display device and a first pH control system, the first pH detector is arranged in the first pH adjusting tank and used for detecting the pH value of liquid in the first pH adjusting tank, the first pH adjusting agent storage tank, the metering pump and the first dosing pump are communicated with the first pH adjusting tank through pipelines in sequence, and the first pH control system is in control connection with the first pH detector, the first metering pump, the first dosing pump and the first instrument display device respectively.
Furthermore, an active carbon adsorption layer is arranged in the adsorption tank.
Further, the second pH adjusting device comprises a second pH adjusting tank, a second pH detector, a second pH adjusting agent storage tank, a second metering pump, a second dosing pump, a second instrument display device and a second pH control system, the second pH detector is arranged in the second pH adjusting tank and used for detecting the pH value of liquid in the second pH adjusting tank, the second pH adjusting agent storage tank, the second metering pump and the second dosing pump are communicated with the second pH adjusting tank through pipelines in sequence, and the second pH control system is in control connection with the second pH detector, the second metering pump, the second dosing pump and the second instrument display device respectively.
Further, the operating pressure of the reverse osmosis treatment device is 0.7-1.5 MPa.
Further, the photocatalytic treatment device comprises a barrel body, a water inlet is formed in the top of the barrel body, a water outlet is formed in the bottom of the barrel body, a rotary water sprayer connected with the water inlet is arranged in the barrel body, an inner glass barrel is sleeved in the barrel body, a plurality of ultraviolet lamps are uniformly arranged in a gap between the inner wall of the barrel body and the outer wall of the inner glass barrel, and nano titanium dioxide films are loaded on the inner side wall and the inner bottom wall of the inner glass barrel.
Further, the wavelength of the ultraviolet lamp is 365nm or 254 nm.
The invention also provides a high-concentration ammonia nitrogen wastewater advanced treatment method, which comprises the following steps:
step one, pretreatment, namely introducing the treated ammonia nitrogen wastewater into a sedimentation tank, removing suspended solid particles in the ammonia nitrogen wastewater to be treated, adding a proper amount of sodium hydroxide, uniformly stirring, and adjusting the pH value of the ammonia nitrogen wastewater to be treated to 10-11;
pumping the ammonia nitrogen wastewater obtained in the step one into a stripping device, and performing stripping treatment through air to obtain crude ammonia gas and a denitrified solution;
step three, spraying and absorbing, namely converting the crude ammonia gas obtained in the step two into finished products of ammonia water, ammonium sulfate or ammonium chloride through spraying and absorbing;
adsorbing by using biological activated carbon, namely adsorbing heavy metal ions by using the denitrified liquid obtained in the step two through a biological activated carbon layer;
step five, degrading the ammonia nitrogen wastewater obtained in the step four by using a titanium dioxide photocatalyst;
step six, performing reverse osmosis treatment, namely adjusting the pH value of the ammonia nitrogen wastewater obtained in the step five to 6-9, and then treating the ammonia nitrogen wastewater by using a reverse osmosis treatment device to obtain concentrated solution and fresh water;
and step seven, evaporating crystals, taking the fresh water obtained in the step six as regenerated reuse water, and enabling the concentrated solution obtained in the step six to enter an evaporation crystallization device 11 to obtain crystals of ammonium salt.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, ammonia nitrogen wastewater is firstly blown off in a blow-off tower, ammonia gas is separated and treated, then the ammonia gas is absorbed by an absorption tower, secondary pollution of the ammonia gas to the atmosphere is prevented, then low-concentration ammonia nitrogen wastewater blown off is sequentially treated by an adsorption tank, a photocatalytic treatment device and a reverse osmosis treatment device, concentrated solution treated by the reverse osmosis treatment device is evaporated and crystallized by an evaporation and crystallization device to recover ammonium salt, fresh water treated by the reverse osmosis treatment device can be used as recycled water, the ammonia nitrogen removal rate is high, the problems of low treatment efficiency, high production cost and standard emission of the existing high-concentration ammonia nitrogen wastewater are solved, resource zero emission is realized, secondary pollution is avoided, and important environmental benefits and economic benefits are achieved.
Drawings
FIG. 1 is a process flow diagram of the advanced treatment method of high-concentration ammonia nitrogen wastewater in the invention.
FIG. 2 is a schematic structural diagram of the advanced treatment device for high-concentration ammonia nitrogen wastewater in the invention.
FIG. 3 is a schematic structural diagram of a first pH adjusting device in the advanced treatment device for high-concentration ammonia nitrogen wastewater.
FIG. 4 is a schematic structural diagram of a second pH adjusting device in the advanced treatment device for high-concentration ammonia nitrogen wastewater.
FIG. 5 is a schematic structural diagram of a photocatalytic treatment device in the advanced treatment device for high-concentration ammonia nitrogen wastewater in the invention.
FIG. 6 is a schematic view of the inner glass barrel of the photocatalytic treatment device according to the present invention.
1. An ammonia nitrogen wastewater storage tank; 2. a sedimentation tank; 3. a first pH adjusting device; 3001. a first pH adjusting tank; 3002. a first pH detector; 3003. a first pH adjuster storage tank; 3004. a first metering pump; 3005. a first dosing pump; 3006. a first meter display device; 3007. a first pH control system; 4. a stripping tower; 5. a spraying device; 6. a spray absorption liquid storage tank; 7. an adsorption tank; 8. a photocatalytic treatment device; 8001. a barrel body; 8002. a water inlet; 8003. a water outlet; 8004. a rotary water sprayer; 8005. a glass inner barrel; 8006. an ultraviolet lamp; 8007. a nano titanium dioxide film; 9. a second pH adjusting device; 9001. a first pH adjusting tank; 9002. a first pH detector; 9009. a first pH adjuster storage tank; 9004. a first metering pump; 9005. a first dosing pump; 9006. a first meter display device; 9007. a first pH control system; 10. a reverse osmosis treatment device; 11. an evaporative crystallization device; 12. a reclaimed water storage tank; 13. a first lift pump; 14. a second lift pump; 15. a third lift pump; 16. a fourth lift pump; 17. a fifth lift pump; 18. a booster pump; 19. and a sixth lift pump.
Detailed Description
In order to make the technical means, the characteristics, the purposes and the functions of the invention easy to understand, the invention is further described with reference to the specific drawings.
Example 1
As shown in fig. 2, a high-concentration ammonia nitrogen wastewater advanced treatment device comprises an ammonia nitrogen wastewater storage tank 1, a sedimentation tank 2, a first pH adjusting device 3, a stripping tower 4, a spraying device 5, a spraying absorption liquid storage tank 6, an adsorption tank 7, a photocatalytic treatment device 8, a second pH adjusting device 9, a reverse osmosis treatment device 10, an evaporative crystallization device 11 and a regeneration reuse water storage tank 12; blow-off tower 4 includes the tower body, be equipped with the water inlet on the tower body, delivery port and gas outlet, ammonia nitrogen waste water reservoir 1 passes through the pipeline in proper order with sedimentation tank 2, first pH adjusting device 3, blow-off tower 4 water inlet 8002 is connected, blow-off tower 4 gas outlet pass through the pipeline in proper order with spray set 5, it is connected to spray absorption liquid reservoir 6, blow-off tower 4 delivery port 8003 passes through the pipeline in proper order with adsorption tank 7, photocatalysis treatment device 8, second pH adjusting device 9, reverse osmosis treatment device 10 is connected, reverse osmosis treatment device 10 dense water delivery port 8003 passes through the pipeline and is connected with evaporation crystallization device 11, reverse osmosis treatment device 10 fresh water delivery port 8003 passes through the pipeline and is connected with regeneration water storage tank 12.
Be equipped with first elevator pump 13 on the pipeline between ammonia nitrogen wastewater storage tank 1 and the sedimentation tank 2, be equipped with second elevator pump 14 on the pipeline between sedimentation tank 2 and the first pH adjusting device 3, be equipped with third elevator pump 15 on the pipeline between first pH adjusting device 3 and the air stripping tower 4 water inlet 8002, be equipped with fourth elevator pump 16 on the pipeline between adsorption tank 7 and the photocatalytic treatment device 8, be equipped with fifth elevator pump 17 on the pipeline between photocatalytic treatment device 8 and the second pH adjusting device 9, be equipped with booster pump 18 on the pipeline between second pH adjusting device 9 and the reverse osmosis unit, be equipped with sixth elevator pump 19 on the pipeline between reverse osmosis unit 10 dense water delivery port 8003 and the evaporation crystallization device 11.
As shown in fig. 3, the first pH adjusting device 3 includes a first pH adjusting tank 3001, a first pH detector 3002, a first pH adjusting agent storage tank 3003, a first metering pump 3004, a first dosing pump 3005, a first instrument display device 3006, and a first pH control system 3007, the first pH detector 3002 is disposed in the first pH adjusting tank 3001 and is configured to detect a pH value of a liquid in the first pH adjusting tank 3001, the first pH adjusting agent storage tank 3003, the metering pump, and the first dosing pump 3005 are sequentially communicated with the first pH adjusting tank 3001 through a pipeline, and the first pH control system 3007 is respectively in control connection with the first pH detector 3002, the first metering pump 3004, the first dosing pump 3005, and the first instrument display device 3006.
Wherein, an activated carbon adsorption layer is arranged in the adsorption tank 7.
As shown in fig. 4, the second pH adjusting device 9 includes a second pH adjusting tank 9001, a second pH detector 9002, a second pH adjusting agent storage tank 9003, a second metering pump 9004, a second dosing pump 9005, a second instrument display device 9006, and a second pH control system 9007, the second pH detector 9002 is disposed in the second pH adjusting tank 9001 and is configured to detect the pH of the liquid in the second pH adjusting tank 9001, the second pH adjusting agent storage tank 9003, the second metering pump 9004, and the second dosing pump 9005 are sequentially communicated with the second pH adjusting tank 9001 through a pipeline, and the second pH control system 9007 is controllably connected to the second pH detector 9002, the second metering pump 9004, the second dosing pump 9005, and the second instrument display device 9006, respectively.
Wherein the operating pressure of the reverse osmosis treatment device 10 is 0.7-1.5 MPa.
As shown in fig. 5 and 6, the photocatalytic treatment device 8 includes a barrel body 8001, a water inlet 8002 is disposed at the top of the barrel body 8001, a water outlet 8003 is disposed at the bottom of the barrel body 8001, a rotary sprinkler 8004 connected to the water inlet 8002 is disposed in the barrel body 8001, a water outlet of the adsorption pool 7 is connected to the rotary sprinkler 8004 through a pipeline, an inner glass barrel 8005 is sleeved in the barrel body 8001, a plurality of ultraviolet lamps 8006 are uniformly disposed in a gap between an inner wall of the barrel body 8001 and an outer wall of the inner glass barrel 8005, and a nano titanium dioxide film 8007 is loaded on an inner side wall and an inner bottom wall; wherein, the wavelength of the ultraviolet lamp 8006 adopts 365nm or 254 nm.
Example 2
As shown in FIG. 1, the embodiment provides a method for advanced treatment of high-concentration ammonia nitrogen wastewater, which comprises the following steps:
step one, pretreatment, namely introducing the treated ammonia nitrogen wastewater into a sedimentation tank 2, removing suspended solid particles in the ammonia nitrogen wastewater to be treated, adding a proper amount of sodium hydroxide, uniformly stirring, and adjusting the pH value of the ammonia nitrogen wastewater to be treated to 10-11;
pumping the ammonia nitrogen wastewater obtained in the step one into a stripping device, and performing stripping treatment through air to obtain crude ammonia gas and a denitrified solution;
step three, spraying and absorbing, namely converting the crude ammonia gas obtained in the step two into finished products of ammonia water, ammonium sulfate or ammonium chloride through spraying and absorbing;
adsorbing by using biological activated carbon, namely adsorbing heavy metal ions by using the denitrified liquid obtained in the step two through a biological activated carbon layer;
step five, degrading the ammonia nitrogen wastewater obtained in the step four by using a titanium dioxide photocatalyst;
step six, performing reverse osmosis treatment, namely adjusting the pH value of the ammonia nitrogen wastewater obtained in the step five to 6-9, and then treating the ammonia nitrogen wastewater by using a reverse osmosis treatment device to obtain concentrated solution and fresh water;
and step seven, the fresh water obtained in the step six is used as regenerated reuse water, and the concentrated solution enters an evaporative crystallization device 11 to obtain crystals of ammonium salt.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A high-concentration ammonia nitrogen wastewater advanced treatment device is characterized by comprising an ammonia nitrogen wastewater storage tank, a sedimentation tank, a first pH adjusting device, a stripping tower, a spraying device, a spraying absorption liquid storage tank, an adsorption tank, a photocatalytic treatment device, a second pH adjusting device, a reverse osmosis treatment device, an evaporative crystallization device and a regeneration and reuse water storage tank; the air stripping tower comprises a tower body, a water inlet, a water outlet and a gas outlet are arranged on the tower body, the ammonia nitrogen wastewater storage pool is sequentially connected with the sedimentation tank, the first pH adjusting device and the air stripping tower water inlet through pipelines, the air outlet of the air stripping tower is sequentially connected with the spraying device and the spraying absorption liquid storage pool through pipelines, the water outlet of the air stripping tower is sequentially connected with the adsorption pool, the photocatalytic treatment device, the second pH adjusting device and the reverse osmosis treatment device through pipelines, the concentrated water outlet of the reverse osmosis treatment device is connected with the evaporative crystallization device through a pipeline, and the fresh water outlet of the reverse osmosis treatment device is connected with the regeneration and reuse water storage tank through a pipeline;
the ammonia nitrogen wastewater storage pond with be equipped with first elevator pump on the pipeline between the sedimentation tank, the sedimentation tank with be equipped with the second elevator pump on the pipeline between the first pH adjusting device, first pH adjusting device with be equipped with the third elevator pump on the pipeline between the air stripping tower water inlet, the adsorption tank with be equipped with the fourth elevator pump on the pipeline between the photocatalytic treatment device, the photocatalytic treatment device with be equipped with the fifth elevator pump on the pipeline between the second pH adjusting device, the second pH adjusting device with be equipped with the booster pump on the pipeline between the reverse osmosis unit, the dense water delivery port of reverse osmosis treatment device with be equipped with the sixth elevator pump on the pipeline between the evaporation crystallization device.
2. The advanced treatment device for the high-concentration ammonia-nitrogen wastewater as recited in claim 1, wherein the first pH adjusting device comprises a first pH adjusting tank, a first pH detector, a first pH adjusting agent storage tank, a first metering pump, a first dosing pump, a first instrument display device and a first pH control system, the first pH detector is arranged in the first pH adjusting tank and used for detecting the pH value of liquid in the first pH adjusting tank, the first pH adjusting agent storage tank, the metering pump and the first dosing pump are communicated with the first pH adjusting tank through pipelines in sequence, and the first pH control system is respectively in control connection with the first pH detector, the first metering pump, the first dosing pump and the first instrument display device.
3. The advanced treatment device for the high-concentration ammonia nitrogen wastewater as recited in claim 1, wherein an activated carbon adsorption layer is arranged in the adsorption tank.
4. The advanced treatment device for high-concentration ammonia-nitrogen wastewater as claimed in claim 1, wherein the second pH adjusting device comprises a second pH adjusting tank, a second pH detector, a second pH adjusting agent storage tank, a second metering pump, a second dosing pump, a second instrument display device and a second pH control system, the second pH detector is arranged in the second pH adjusting tank and used for detecting the pH value of liquid in the second pH adjusting tank, the second pH adjusting agent storage tank, the second metering pump and the second dosing pump are communicated with the second pH adjusting tank through pipelines in sequence, and the second pH control system is respectively in control connection with the second pH detector, the second metering pump, the second dosing pump and the second instrument display device.
5. The advanced treatment device for the high-concentration ammonia nitrogen wastewater as recited in claim 1, wherein the operating pressure of the reverse osmosis treatment device is 0.7-1.5 MPa.
6. The advanced treatment device for high-concentration ammonia nitrogen wastewater as claimed in claim 1, wherein the photocatalytic treatment device comprises a barrel body, a water inlet is arranged at the top of the barrel body, a water outlet is arranged at the bottom of the barrel body, a rotary water sprayer connected with the water inlet is arranged in the barrel body, a glass inner barrel is sleeved in the barrel body, a plurality of ultraviolet lamps are uniformly arranged in a gap between the inner wall of the barrel body and the outer wall of the glass inner barrel, and the inner side wall and the inner bottom wall of the glass inner barrel are loaded with nano titanium dioxide films.
7. The advanced treatment device for the high-concentration ammonia nitrogen wastewater as claimed in claim 1, wherein the wavelength of the ultraviolet lamp is 365nm or 254 nm.
8. The advanced treatment method of the high-concentration ammonia nitrogen wastewater is characterized by comprising the following steps:
step one, pretreatment, namely introducing the treated ammonia nitrogen wastewater into a sedimentation tank, removing suspended solid particles in the ammonia nitrogen wastewater to be treated, adding a proper amount of sodium hydroxide, uniformly stirring, and adjusting the pH value of the ammonia nitrogen wastewater to be treated to 10-11;
pumping the ammonia nitrogen wastewater obtained in the step one into a stripping device, and performing stripping treatment through air to obtain crude ammonia gas and a denitrified solution;
step three, spraying and absorbing, namely converting the crude ammonia gas obtained in the step two into finished products of ammonia water, ammonium sulfate or ammonium chloride through spraying and absorbing;
adsorbing by using biological activated carbon, namely adsorbing heavy metal ions by using the denitrified liquid obtained in the step two through a biological activated carbon layer;
step five, degrading the ammonia nitrogen wastewater obtained in the step four by using a titanium dioxide photocatalyst;
step six, performing reverse osmosis treatment, namely adjusting the pH value of the ammonia nitrogen wastewater obtained in the step five to 6-9, and then treating the ammonia nitrogen wastewater by using a reverse osmosis treatment device to obtain concentrated solution and fresh water;
and step seven, evaporating crystals, taking the fresh water obtained in the step six as regenerated reuse water, and enabling the concentrated solution obtained in the step six to enter an evaporation crystallization device 11 to obtain crystals of ammonium salt.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101386461A (en) * | 2008-10-28 | 2009-03-18 | 北京桑德环境工程有限公司 | Processing system for implementing coking waste water reuse and processing method |
| CN101891330A (en) * | 2010-07-23 | 2010-11-24 | 深圳市能源环保有限公司 | Power plant wastewater treatment system and method |
| CN104986899A (en) * | 2015-07-27 | 2015-10-21 | 广州华浩能源环保集团有限公司 | High-concentration ammonia-nitrogen wastewater ammonia stripping and resourceful treatment system and treatment method |
| CN105749956A (en) * | 2014-12-20 | 2016-07-13 | 天津滨浦生产力促进有限公司 | A simple preparing method for a zeolite-loaded titanium dioxide wastewater treating agent |
| CN107244706A (en) * | 2017-06-16 | 2017-10-13 | 云南大学 | A kind of handling process of high ammonia nitrogen and high heavy metal wastewater thereby |
| CN107585970A (en) * | 2017-10-30 | 2018-01-16 | 山东理工大学 | The technique of hardly degraded organic substance advanced treating in a kind of Industrial reverse osmosis concentrated water |
-
2018
- 2018-12-20 CN CN201811564867.4A patent/CN111348791A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101386461A (en) * | 2008-10-28 | 2009-03-18 | 北京桑德环境工程有限公司 | Processing system for implementing coking waste water reuse and processing method |
| CN101891330A (en) * | 2010-07-23 | 2010-11-24 | 深圳市能源环保有限公司 | Power plant wastewater treatment system and method |
| CN105749956A (en) * | 2014-12-20 | 2016-07-13 | 天津滨浦生产力促进有限公司 | A simple preparing method for a zeolite-loaded titanium dioxide wastewater treating agent |
| CN104986899A (en) * | 2015-07-27 | 2015-10-21 | 广州华浩能源环保集团有限公司 | High-concentration ammonia-nitrogen wastewater ammonia stripping and resourceful treatment system and treatment method |
| CN107244706A (en) * | 2017-06-16 | 2017-10-13 | 云南大学 | A kind of handling process of high ammonia nitrogen and high heavy metal wastewater thereby |
| CN107585970A (en) * | 2017-10-30 | 2018-01-16 | 山东理工大学 | The technique of hardly degraded organic substance advanced treating in a kind of Industrial reverse osmosis concentrated water |
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