CN109809621A - A kind of processing method containing ammonia-nitrogen sewage - Google Patents
A kind of processing method containing ammonia-nitrogen sewage Download PDFInfo
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- CN109809621A CN109809621A CN201910169403.1A CN201910169403A CN109809621A CN 109809621 A CN109809621 A CN 109809621A CN 201910169403 A CN201910169403 A CN 201910169403A CN 109809621 A CN109809621 A CN 109809621A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The application provides a kind of processing method of ammonia nitrogen in sewage, to high concentration ammonia nitrogen sewage using gradient magnetic activation and the technical treatment of stripping process in-situ combination, high concentration ammonia nitrogen sewage is processed into low-concentration ammonia-nitrogen sewage, improve the utilization rate of gradient magnetic activating technology, the effect of stripping process is enhanced simultaneously, improve ammonia nitrogen removal frank, further, advanced treating is carried out with breakpoint chlorination technique in-situ combination technology using gradient magnetic activation to low-concentration ammonia-nitrogen sewage, it is the sewage for meeting ammonia nitrogen discharge standard by low-concentration ammonia-nitrogen sewage treatment, improve the utilization rate of gradient magnetic activating technology, the effect of breakpoint chlorination technique is enhanced simultaneously, improve ammonia nitrogen removal frank.
Description
Technical field
This application involves a kind of sewage water treatment method more particularly to a kind of processing methods containing ammonia-nitrogen sewage.
Background technique
As China's industrialzation and urbanization process is constantly accelerated, the problem of environmental pollution generated therewith is also got worse,
Environmental pollution causes water environment constantly to deteriorate, and seriously affects the safety of China's water resource.Wherein, ammonia nitrogen is to cause water eutrophication
Change and an important factor for environmental pollution, algae and other microorganism mass propagations in Yi Yinqi water, water treatment plants operation are stranded
Difficulty causes drinking water peculiar smell, oxygen in water can be made to decline when serious, fish mortality, results even in the dry of lake
It is destroyed.In addition, ammonia nitrogen can also make to increase chlorine dosage in water disinfection and industrial circulating water sterilisation process；To certain metals
(copper) has corrosivity；When reusing sewage, ammonia nitrogen can promote microorganism in aqueduct and watering equipment in recycled water
Breeding forms biofouling, blocks pipeline and watering equipment, and influence heat exchange efficiency.Therefore, using ammonia nitrogen as the water body of contamination index
Pollution, which becomes in water pollution control, preferentially to be solved the problems, such as.
There are many ways to removing the ammonia nitrogen in sewage at present, such as reverse osmosis membrane filtration method, gas blow-off method, chemistry are anti-
Removal method, biological clarification etc., ion-exchange etc. are answered, it is each to have applicable NH_3-N treating environment and feature by oneself.China's hair
Bright patent CN107804946A discloses a kind of technique for handling nitrosamines disinfection by-products in drinking water, and which introduce gradients
Magnetic field makes cluster water resolve into single hydrone state, and in regularly arranged, and make hydrone and nitrosamines organic matter into
Row separation, has it in a free form, reduces the molecular action between hydrone and organic and inorganic complex compound, then using suction
Attached processing eliminates nitrosamines substance.More and more passes are obtained using the technology that gradient magnetic carries out water process in the recent period
Note, CN107963766A, CN207933215U, CN107954504A, CN107804946A, CN107628724A,
The more prior arts such as CN104529043A use gradient magnetic to make water molecule cluster solution cluster with realize activation, convenient for it is subsequent into
Row processing.But existing gradient magnetic activating technology is all used for water molecule activation step, then (especially by subsequent processing steps
Adsorption step) water body after activation is handled.However, water molecule cluster solution cluster is a kind of spy under the conditions of gradient magnetic
Different phenomenon, under the conditions of losing gradient magnetic, the hydrone for having solved cluster then will be again by Van der Waals force or hydrogen bond mode shape
At water molecule cluster, the water body of activation will gradually lose the state of activation.Although the prior art indicate that having solved the water molecule energy of cluster
Enough relaxation certain times are to keep the state of activation, but the relaxation time is limited after all, limit the treating capacity and processing effect of water body
Fruit, does not make full use of the water body of the state of activation, and the utilization rate of gradient magnetic activating technology is limited.
Currently, it is less using the report of gradient magnetic activating technology processing ammonia nitrogen in sewage, and gradient magnetic activates skill
The service efficiency of art is lower.The application proposes a kind of processing method of new ammonia nitrogen in sewage in view of the above technical problems, will
Gradient magnetic activating technology and existing ammonia nitrogen removal technology are combined, and are improving the same of the service efficiency of gradient magnetic activating technology
When, improve ammonia nitrogen removal effect.
Summary of the invention
The application provides a kind of processing method of ammonia nitrogen in sewage, to high concentration ammonia nitrogen sewage using gradient magnetic activation with
High concentration ammonia nitrogen sewage is processed into low-concentration ammonia-nitrogen sewage, improves gradient magnetic by stripping process in-situ combination technical treatment
The utilization rate of activating technology, while the effect of stripping process is enhanced, ammonia nitrogen removal frank is improved, further, to low concentration ammonia
Nitrogen sewage carries out advanced treating with breakpoint chlorination technique in-situ combination technology using gradient magnetic activation, by low-concentration ammonia-nitrogen sewage
Processing is the sewage for meeting ammonia nitrogen discharge standard, improves the utilization rate of gradient magnetic activating technology, while enhancing break chlorine
The effect of chemical industry skill, improves ammonia nitrogen removal frank.Specific technical solution is as follows:
A kind of processing method containing ammonia-nitrogen sewage, including following processing step:
(1) high concentration ammonia nitrogen sewage is subjected to pH adjusting, so that pH value is 9-12, preferable ph 11, wherein high concentration
Ammonia nitrogen concentration in ammonia-nitrogen sewage is 1000mg/L to 10000mg/L；
(2) high concentration ammonia nitrogen sewage after adjusting pH is passed through stripping tower, using stripping gas by aeration mode to institute
It states ammonia-nitrogen sewage and carries out stripping, gradient magnetic is applied to ammonia-nitrogen sewage in situ while stripping and is handled, is obtained after processing
Low-concentration ammonia-nitrogen sewage, wherein the ammonia nitrogen concentration in low-concentration ammonia-nitrogen sewage is 30mg/L to 500mg/L.
Gradient magnetic activating technology and stripping technology are combined by the application, are played the synergistic effect of two kinds of technologies, are improved
The utilization rate of gradient magnetic activating technology, while the effect of stripping process is enhanced, improve ammonia nitrogen removal frank.
Preferably, in step (2), stripping gas is at least one of air, oxygen, nitrogen or steam, preferably air；
Stripping temperature is 20-80 DEG C, preferably 25-45 DEG C；Stripping time is 20-180min, preferably 30-60min；Stripping gas flow rate is
0.1-10L/min, preferably 1-5L/min.
Nitric wastewater pH value, the temperature of stripping gas and flow velocity, stripping time etc. all have an impact to ammonia nitrogen removal frank, according to
Stripping principle, usual pH value need for alkalinity to produce ammonium hydroxide, and stripping gas temperature height is then conducive to ammonium hydroxide point
Solution, stripping gas flow rate are conducive to reaction fastly and accelerate, and further consider removal rate and relevant cost, to blowing pH value of sewage water, de-
Gaseous species, stripping gas temperature and flow velocity, stripping time have carried out preferably, so that the application can be into benefit and cost
One-step optimization.
Preferably, further comprise following processing step:
(3) low-concentration ammonia-nitrogen sewage is subjected to pH adjusting, so that pH value is 6-8, preferable ph 7；
(4) the low-concentration ammonia-nitrogen sewage after adjusting pH is passed through reactor, chlorine, hypochlorous acid or hypochlorite is added anti-
It answers in the ammonia-nitrogen sewage of device, disturbance gas is passed through reactor by aeration form, in situ to ammonia-nitrogen sewage while reaction
Apply gradient magnetic to be handled, the sewage for meeting ammonia nitrogen discharge standard is obtained after processing, wherein meet ammonia nitrogen discharge standard
Ammonia nitrogen concentration in sewage is less than 10mg/L.
Gradient magnetic activating technology and breakpoint chlorination technology are combined by the application, are played the synergistic effect of two kinds of technologies, are mentioned
The high utilization rate of gradient magnetic activating technology, while the effect of breakpoint chlorination technique is enhanced, improve ammonia nitrogen removal frank.
Preferably, in step (4), chlorine-bearing compound additional amount makes ClO-With NH4 +Molar ratio be 1.5-1.8:1, instead
10-30min between seasonable；Disturbance gas is air；Perturbation of gas stream speed is 0.1-10L/min, preferably 1-5L/min.
Nitric wastewater pH value, perturbation of gas stream speed, reactive material ratio etc. all have an impact to ammonia nitrogen removal frank, according to break
Chlorination technique principle, usual pH value need to be neutral, and stripping gas flow rate is conducive to reaction fastly and accelerates, hypochlorite and ammonium ion
Ratio should be more slightly higher than theoretical value to remove ammonia nitrogen as far as possible.
Preferably, in step (2), gradient magnetic generation device is arranged outside stripping tower or inside stripping tower, in step
Suddenly gradient magnetic generation device is arranged outside reactor or inside reactor in (4).
The application can be according to gradient magnetic generation device in the prior art be utilized, and it is appropriate to be arranged according to the actual situation
Position avoids generating other influences between sewage to generate gradient magnetic simultaneously.
Preferably, before step (1), increase pre-treatment step, high concentration ammonia nitrogen sewage to be processed is filtered
To remove the impurity such as bulky grain therein, colloidal substance.
The application can be realized using technologies such as common filtering, ultrafiltration to bulky grain, colloid substances before sewage treatment ammonia nitrogen
The removal of the impurity such as matter.
Preferably, after step (2), before step (3), increase adsorption filtration step, it is organic in adsorbed water body
Object, heavy metal ion, death the substances such as microorganism, while reducing the turbidity of water body, coloration；In the adsorption filtration step,
Using at least one of natural crystal material, carbonaceous material, molecular sieve.
The application can use for reference the relaxation property that the prior art generates state using gradient magnetic in sewage, in conjunction with absorption skill
Art removes related impurities.
Preferably, after step (4), before the sewage discharge for meeting ammonia nitrogen discharge standard, increase disinfection and sterilization step
Suddenly, virus remaining in water body, microorganism are further removed；In the disinfection and sterilization step, in the material with strainability
Increase disinfection and sterilization in matter, to realize filtering while the sterilization that carries out disinfection.
The application can use for reference the prior art and carry out disinfection sterilization processing to sewage according to demand.
The utility model has the advantages that
(1) gradient magnetic activating technology and stripping technical tie-up are applied to processing high concentration ammonia nitrogen sewage, are blown in sewage
Application gradient magnetic de- while in situ, so that the water cluster solution cluster in sewage, the substance being dissolved in water is at free state, root
According to the difference of the solubility of ammonia in gas phase in liquid phase, ammonia nitrogen is removed using physical reactions, wherein the direct collision between each substance
Enable physical reactions deeper into progress, to improve the removal rate of ammonia nitrogen, while also taking full advantage of gradient magnetic
The utilization rate of technology.
(2) gradient magnetic activating technology and breakpoint chlorination technical tie-up are applied to processing low-concentration ammonia-nitrogen sewage, changed
Reaction application gradient magnetic in situ simultaneously is learned, so that the water cluster solution cluster in sewage, the ammonium that can be reacted being dissolved in water
Ion and hypochlorite ion at free state can direct collision so that chemical reaction can deeper into progress, from
And the removal rate of ammonia nitrogen is improved, while also taking full advantage of the utilization rate of gradient magnetic technology.
Specific embodiment
More detailed explanation and explanation are made to technical solution of the present invention and advantage below.It should be understood that saying
The content presented in bright book, specific embodiment, just to clearly illustrate technical solution of the present invention and its excellent
Point, is not construed as limiting protection scope of the present invention.Those skilled in the art can on the basis of specification disclosure,
For it is various it is reasonable changed after technical solution, as long as it does not depart from the spirit of the invention, the skill after various change
Art scheme is included within protection scope of the present invention.
Embodiment 1
The simulation sewage that the pH value that configuration 500mL ammonia-nitrogen content is 1200mg/L is 11, is passed through the simulation stripping tower of 5L, adopts
Stripping is carried out to the simulation ammonia-nitrogen sewage by aeration mode with 35 DEG C of air, is blown by being arranged in simulation while stripping
Gradient magnetic generation device original position outside de- tower applies gradient magnetic to ammonia-nitrogen sewage and handles, stripping time 40min；It blows
De- gas flow rate is 3L/min.Through measuring, ammonia-nitrogen content is 53mg/L after processing.
Embodiment 2
The simulation sewage that the pH value that configuration 500mL ammonia-nitrogen content is 1200mg/L is 11, is passed through the simulation stripping tower of 5L, adopts
Stripping is carried out to the simulation ammonia-nitrogen sewage by aeration mode with 25 DEG C of air, is blown by being arranged in simulation while stripping
Gradient magnetic generation device original position outside de- tower applies gradient magnetic to ammonia-nitrogen sewage and handles, stripping time 30min；It blows
De- gas flow rate is 8L/min.Through measuring, ammonia-nitrogen content is 47mg/L after processing.
Embodiment 3
The simulation sewage that the pH value that configuration 500mL ammonia-nitrogen content is 1200mg/L is 11, is passed through the simulation stripping tower of 5L, adopts
Stripping is carried out to the simulation ammonia-nitrogen sewage by aeration mode with 45 DEG C of air, is blown by being arranged in simulation while stripping
Gradient magnetic generation device original position outside de- tower applies gradient magnetic to ammonia-nitrogen sewage and handles, stripping time 80min；It blows
De- gas flow rate is 0.5L/min.Through measuring, ammonia-nitrogen content is 71mg/L after processing.
Comparative example 1
The simulation sewage that the pH value that configuration 500mL ammonia-nitrogen content is 1200mg/L is 11, only by setting in simulation stripping
Gradient magnetic generation device outside tower applies gradient magnetic to ammonia-nitrogen sewage and carries out processing 40min.Through measuring, ammonia nitrogen contains after processing
Amount is 1198mg/L.
Comparative example 2
The simulation sewage that the pH value that configuration 500mL ammonia-nitrogen content is 1200mg/L is 11, is passed through the simulation stripping tower of 5L, only
Stripping, stripping time 40min are carried out to the simulation ammonia-nitrogen sewage by aeration mode using 35 DEG C of air；Stripping gas stream
Speed is 3L/min.Through measuring, ammonia-nitrogen content is 230mg/L after processing.
By comparing embodiment 1-3 it can be found that stripping technology is used in combination with gradient magnetic activating technology enables to
Ammonia nitrogen removal reaches 90% or more in high concentration ammonia nitrogen sewage pretreatment, can effectively remove the high strength ammonia in sewage
Nitrogen.Further, comparing embodiment 1 and comparative example 1,2 be not it can be found that gradient magnetic technology have the ability of removal ammonia nitrogen substantially,
Stripping technology enables to ammonia nitrogen removal frank to reach 80%, and after two-phase technology is carried out combination in situ, ammonia nitrogen rate further mentions
Height illustrates to produce synergistic effect between two kinds of technologies, and gradient magnetic technology makes water cluster solution cluster, ammonium hydroxide is made to exist
In sewage at free state, and blow-off method will make to solve by aeration form between the hydrone of cluster, between ammonium hydroxide, solution
Mutually collided between cluster hydrone and ammonium hydroxide, promote ammonium hydroxide decompose, and then between ammonium hydroxide decomposition product also into
Row mutually collision, accelerates reaction process, since to be consistently less than balance under this condition dense for ammonia concentration in gas phase during stripping
Degree, therefore the ammonia dissolved in sewage may pass through gas-liquid interface and enter gas phase and is able to the ammonia that dissolves in removing liquid.Due to hydrone
Cluster solution cluster causes mutually to be more prone to produce direct collision between each substance, so that reaction can further be goed deep into carrying out, from
And improve the removal effect of ammonia nitrogen in water.
Embodiment 4
The simulation sewage that the pH value that configuration 500mL ammonia-nitrogen content is 50mg/L is 7, is passed through the analogue reactor of 5L, will be secondary
Sodium chlorate is added in the ammonia-nitrogen sewage of reactor, is passed through reactor by aeration form using air as disturbance gas, is reacting
While gradient magnetic applied to ammonia-nitrogen sewage carry out by the way that the gradient magnetic generation device being arranged in outside analogue reactor is in situ
Processing, chlorine-bearing compound additional amount make ClO-With NH4 +Molar ratio be 1.6:1, reaction time 15min；Air velocity is 3L/
min.Through measuring, ammonia-nitrogen content is 1.2mg/L after processing.
Embodiment 5
The simulation sewage that the pH value that configuration 500mL ammonia-nitrogen content is 50mg/L is 7, is passed through the analogue reactor of 5L, will be secondary
Sodium chlorate is added in the ammonia-nitrogen sewage of reactor, is passed through reactor by aeration form using air as disturbance gas, is reacting
While gradient magnetic applied to ammonia-nitrogen sewage carry out by the way that the gradient magnetic generation device being arranged in outside analogue reactor is in situ
Processing, chlorine-bearing compound additional amount make ClO-With NH4 +Molar ratio be 1.8:1, reaction time 30min；Air velocity is 0.5L/
min.Through measuring, ammonia-nitrogen content is 3mg/L after processing.
Embodiment 6
The simulation sewage that the pH value that configuration 500mL ammonia-nitrogen content is 50mg/L is 7, is passed through the analogue reactor of 5L, will be secondary
Sodium chlorate is added in the ammonia-nitrogen sewage of reactor, is passed through reactor by aeration form using air as disturbance gas, is reacting
While gradient magnetic applied to ammonia-nitrogen sewage carry out by the way that the gradient magnetic generation device being arranged in outside analogue reactor is in situ
Processing, chlorine-bearing compound additional amount make ClO-With NH4 +Molar ratio be 1.5:1, reaction time 10min；Air velocity is 8L/
min.Through measuring, ammonia-nitrogen content is 0.9mg/L after processing.
Comparative example 3
The simulation sewage that the pH value that configuration 500mL ammonia-nitrogen content is 50mg/L is 7, is passed through the analogue reactor of 5L, only leads to
It crosses the gradient magnetic generation device being arranged in outside analogue reactor and processing 15min is carried out to ammonia-nitrogen sewage application gradient magnetic.Through
Measurement, ammonia-nitrogen content is 50mg/L after processing.
Comparative example 4
The simulation sewage that the pH value that configuration 500mL ammonia-nitrogen content is 50mg/L is 7, is passed through the analogue reactor of 5L, will be secondary
Sodium chlorate is added in the ammonia-nitrogen sewage of reactor, is passed through reactor by aeration form using air as disturbance gas, does not apply
Gradient magnetic, chlorine-bearing compound additional amount make ClO-With NH4 +Molar ratio be 1.6:1, reaction time 15min；Air velocity is
3L/min.Through measuring, ammonia-nitrogen content is 7mg/L after processing.
By comparing embodiment 4-6 it can be found that breakpoint chlorination technology and gradient magnetic activating technology be used in combination can
So that ammonia nitrogen removal frank reaches 90% or more in low-concentration ammonia-nitrogen advanced treatment of wastewater, can be used for effectively removing in sewage
Low-concentration ammonia-nitrogen.Further, comparing embodiment 4 and comparative example 3,4 be not it can be found that gradient magnetic technology has to remove ammonia substantially
The ability of nitrogen, breakpoint chlorination technology enable to ammonia nitrogen removal frank to reach 85%, and after two-phase technology is carried out combination in situ,
Ammonia nitrogen rate further increases, and illustrates to produce synergistic effect between two kinds of technologies, gradient magnetic technology makes water cluster solution
Cluster, make ammonium ion, hypochlorite ion in sewage at free state, and disturb gas make between ammonium ion, hypochlorous acid
It is mutually collided between radical ion, between ammonium ion and hypochlorite ion, promotes to react between ammonium ion and hypochlorite ion,
Accelerate reaction process.It is directly touched since water cluster solution cluster causes mutually to be more prone to produce between ammonium ion and hypochlorite ion
It hits, so that reaction can further be goed deep into carrying out, to improve the removal effect of ammonia nitrogen in water.
The application is for the low problem of gradient magnetic activating technology utilization rate in the prior art, by the way that its original position to be applied to
Ammonia nitrogen processing method in the prior art not only takes full advantage of the utilization rate of gradient magnetic activating technology, more finds the skill
It can be improved ammonia nitrogen removal frank after art and the combination of stripping technology and breakpoint chlorination technology.Therefore, the application is solving the prior art
Present in the low problem of gradient magnetic activating technology utilization rate simultaneously, realize the effect for improving ammonia nitrogen removal frank.
Although the content of present invention includes specific embodiment, to those skilled in the art it is apparent that without departing from
In the case where the invention element or scope of present claims and its equivalent technical solutions, various shapes can be made to these embodiments
Replacement or variation in formula and in details.Embodiment described herein should be considered only in descriptive sense, be not intended to limit
The purpose of system.The description of feature and aspect in each example is deemed applicable to the similar features in other embodiments
And aspect.Therefore, the scope of the present invention should not be by specifically describing to be limited, but by the limit of claim technical solution
It is fixed, and all changes in the range of present claims and its equivalent are interpreted to be included in technical solution of the present invention
Within.
Claims (10)
1. a kind of processing method containing ammonia-nitrogen sewage, including following processing step:
(1) high concentration ammonia nitrogen sewage is subjected to pH adjusting, so that pH value is 9-12, wherein the ammonia nitrogen in high concentration ammonia nitrogen sewage
Concentration is 1000mg/L to 10000mg/L；
(2) high concentration ammonia nitrogen sewage after adjusting pH is passed through stripping tower, using stripping gas by aeration mode to the ammonia
Nitrogen sewage carries out stripping, applies gradient magnetic to ammonia-nitrogen sewage in situ while stripping and handles, obtains after processing low dense
Spend ammonia-nitrogen sewage, wherein the ammonia nitrogen concentration in low-concentration ammonia-nitrogen sewage is 30mg/L to 500mg/L.
2. as described in claim 1 containing the processing method of ammonia-nitrogen sewage, in step (2), stripping gas be air, oxygen,
At least one of nitrogen or steam；Stripping temperature is 20-80 DEG C；Stripping time is 20-180min；Stripping gas flow rate is 0.1-
10L/min。
3. further comprising following processing step as described in claim 1 containing the processing method of ammonia-nitrogen sewage:
(3) low-concentration ammonia-nitrogen sewage is subjected to pH adjusting, so that pH value is 6-8；
(4) the low-concentration ammonia-nitrogen sewage after adjusting pH is passed through reactor, reactor is added in chlorine, hypochlorous acid or hypochlorite
Ammonia-nitrogen sewage in, disturbance gas by aeration form is passed through reactor, in situ to ammonia-nitrogen sewage application while reaction
Gradient magnetic is handled, and the sewage for meeting ammonia nitrogen discharge standard is obtained after processing, wherein meet the sewage of ammonia nitrogen discharge standard
In ammonia nitrogen concentration be less than 10mg/L.
4. in step (4), chlorine-bearing compound additional amount makes ClO as claimed in claim 3 containing the processing method of ammonia-nitrogen sewage-
With NH4 +Molar ratio be 1.5-1.8:1, reaction time 10-30min；Disturbance gas is air；Perturbation of gas stream speed is 0.1-
10L/min。
5. the processing method as claimed in claim 1 or 3 containing ammonia-nitrogen sewage, in step (2), gradient magnetic generation device is set
It sets outside stripping tower or inside stripping tower, gradient magnetic generation device is arranged outside reactor or reacts in step (4)
Inside device.
6. as described in claim 1 containing the processing method of ammonia-nitrogen sewage, before step (1), increase pre-treatment step, it will be to
The high concentration ammonia nitrogen sewage of processing is filtered to remove the impurity such as bulky grain therein, colloidal substance.
7. after step (2), before step (3), increasing as claimed in claim 3 containing the processing method of ammonia-nitrogen sewage
Step is absorbed and filter, the substances such as microorganism of organic matter, heavy metal ion, death in adsorbed water body, while reducing water body
Turbidity, coloration.
8. as claimed in claim 7 containing the processing method of ammonia-nitrogen sewage, in the adsorption filtration step, using natural crystal material
At least one of material, carbonaceous material, molecular sieve.
9. after step (4), meeting ammonia nitrogen discharge standard as claimed in claim 3 containing the processing method of ammonia-nitrogen sewage
Sewage discharge before, increase disinfection and sterilization step, virus remaining in water body, microorganism are further removed.
10. as claimed in claim 9 containing the processing method of ammonia-nitrogen sewage, in the disinfection and sterilization step, with filterability
Increase disinfection and sterilization in the material of energy, to realize filtering while the sterilization that carries out disinfection.
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| CN201910169403.1A CN109809621B (en) | 2019-03-07 | 2019-03-07 | Method for treating sewage containing ammonia nitrogen |
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| CN201910169403.1A CN109809621B (en) | 2019-03-07 | 2019-03-07 | Method for treating sewage containing ammonia nitrogen |
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| CN101172729A (en) * | 2007-10-26 | 2008-05-07 | 郭晋民 | Physciochemical treatment technique for remained aqueous ammonia of coke-oven plant |
| CN103030235A (en) * | 2012-09-17 | 2013-04-10 | 何学文 | Ammonia-nitrogen wastewater treatment method |
| CN107698090A (en) * | 2017-11-14 | 2018-02-16 | 北京太和洁源科技发展有限公司 | The technique for preparing soilless culture active water |
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