CN106830112A - A kind of efficient ammonia nitrogen remover and preparation method thereof - Google Patents
A kind of efficient ammonia nitrogen remover and preparation method thereof Download PDFInfo
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- CN106830112A CN106830112A CN201710026807.6A CN201710026807A CN106830112A CN 106830112 A CN106830112 A CN 106830112A CN 201710026807 A CN201710026807 A CN 201710026807A CN 106830112 A CN106830112 A CN 106830112A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/20—Prevention of biofouling
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
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- Hydrology & Water Resources (AREA)
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- Environmental & Geological Engineering (AREA)
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Abstract
A kind of efficient ammonia nitrogen remover and preparation method thereof, belongs to sewage treatment area, including part by weight account for 1 5% aluminum sulfate, part by weight account for 80 90% sodium carboxymethylcellulose and part by weight account for 5 20% high-efficient oxidant.This kind of efficient ammonia nitrogen remover can not only be by destroying hydrone and NH3Intermolecular hydrogen bond, promotes the free state of ammonia nitrogen to convert, and significantly improves treatment effect of the ammonia-nitrogen stripping tower to ammonia nitrogen, can also slow down stripping tower fouling obstruction, so as to improve ammonia nitrogen removal frank, reducing energy consumption.
Description
Technical field
The present invention relates to sewage treatment area, more particularly to a kind of efficient ammonia nitrogen remover and preparation method thereof.
Background technology
In recent years, as the water pollution event that all kinds of ammonia nitrogens cause largely occurs, the seriousness of ammonia and nitrogen pollution is increasingly drawn
The attention of people is played, country has also worked out more strict standard to ammonia nitrogen discharge capacity in water body.Blown except the method for ammonia nitrogen mainly has
De- method, ammonia still process method, membrane filter method, chemical precipitation method etc..Wherein, blow-off method is domestic at present more for processing ammonia-nitrogen sewage
Method, with low cost, the simple advantage of equipment.
But for some agricultural chemicals, chemical enterprise, the ammonia-nitrogen sewage of high concentration usually can be constantly produced in process of production,
Ammonia-nitrogen content is generally in more than 500mg/L, it might even be possible to reach tens of thousands of mg/L, and the discharge capacity of these ammonia-nitrogen sewages is big, composition is multiple
Miscellaneous, strong toxicity, though using common ammonia-nitrogen stripping tower PROCESS FOR TREATMENT efficiency it is low, time-consuming and long-time circular treatment also very
It is difficult that ammonia-nitrogen content is reduced to below 300mg/L, in addition can not reach general biochemical process treatment ammonia-nitrogen sewage enter water quality standard.
In order to improve ammonia nitrogen removal frank in stripping tower process, prior art typically using the method for heating and improving basicity,
But so on the one hand need to consume mass energy or chemical reagent, increased processing cost, another side removes ammonia nitrogen effect
It is very limited, especially for some organic ammoniac compounds, such as alpha amino acid, it is impossible to the method by heating or improve basicity
Free state to realize ammonia nitrogen is converted.It is additionally, since in sewage and there is many organic matters, microorganism or algae, in ammonia-nitrogen desorption
During be easy to be deposited in stripping tower, cause tower wall fouling, filler to block, cause stripping efficiency to be greatly lowered, energy consumption
Increase, influence the normal operation of equipment.
The content of the invention
It is an object of the invention to provide a kind of efficient ammonia nitrogen remover and preparation method thereof, to improve ammonia-nitrogen stripping tower work
Skill and can slow down the generation of dirt in stripping tower for the treatment effeciency of high concentration ammonia nitrogen sewage, reducing energy consumption, so as to drop
Reduction process cost.
Above-mentioned technical purpose of the invention technical scheme is that：A kind of efficient ammonia nitrogen remover,
The aluminum sulfate of 1-5%, part by weight being accounted for including part by weight and accounting for the sodium carboxymethylcellulose and part by weight of 80-90% account for 5-
20% high-efficient oxidant.
By above-mentioned technical proposal, due to blowing in tower sewage typically first plus between alkali regulation pH to 10.0~12.0, sewage
In ammonia nitrogen it is main exist in the form of a hydration ammonia, ammonia molecule is combined with hydrone by intermolecular hydrogen bonding, by weight
Ratio is accounted in 80-90% sodium carboxymethylcelluloses containing the free radicals such as substantial amounts of O, H, OH and active group, can destroy moisture
Son and NH3Intermolecular hydrogen bond, makes NH3Molecule breaks away from the adhesion of hydrone, while by ammonia under the drive of air in the stripping tower
Air-blowing takes off, and so as to effectively improve the stripping efficiency of ammonia, the aluminum sulfate for accounting for 1-5% by part by weight leads to and can add
Metal ion present in fast sewage and acid ion and calcium hydroxide reaction production precipitation, so that, combined with NH4+ originally
Salt be easier to be electrolysed, and also more thoroughly so that in sewage have more NH4+ transform into ammonia and from
Blown in sewage and put forward, so as to improve the clearance to the ammonia nitrogen in sewage, the efficient of 5-20% is accounted for by part by weight
Oxidant has efficient oxidability, can oxidation Decomposition organic matter, microorganism and algae, slow down these impurity in stripping
Deposition fouling on tower, so as to reduce because fouling in stripping tower or in filler and caused by the reduction of stripping efficiency, energy consumption increases
The occurrence of.
Further, described high-efficient oxidant is potassium ferrate, C5H6Br2N2O2, BCDMH or DBNPA
In one or two.
By above-mentioned technical proposal, vigorous oxidation reaction is produced in potassium ferrate input water, except can oxidation Decomposition have
Machine thing, microorganism and algae, slow down deposition fouling of these impurity on stripping tower, and its catabolite Fe (OH) 3 glue
Body also has flocculation, can be with organic and inorganic pollution in Adsorption water, and heavy metal has special efficacy, bromine chlorine sea
Cause, C5H6Br2N2O2 and DBNPA are brominated high-efficient oxidant, with strong oxidizing property, can kill microorganism, energy
Enough oxidation Decomposition organic matters, microorganism and algae, slow down deposition fouling of these impurity on stripping tower, so as to reduce because
Fouling in stripping tower or in filler and cause the reduction of stripping efficiency, and cause ammonia in microbial body and in sewage,
Amino acid, protein and other itrogenous organic substance oxidation Decompositions, improve ammonia nitrogen removal frank, with deodorant effect.
Further, the high-efficient oxidant is that weight ratio is 2.5：1 C5H6Br2N2O2 and the mixture of BCDMH.
By C5H6Br2N2O2 and BCDMH according to 2.5：, than compounding, oxidation disinfection ability is better than exclusive use for 1 weight
The situation of C5H6Br2N2O2 or BCDMH, so that with the effect for preferably slowing down incrustation scale generation, consumption is effectively reduced,
So that reagent cost reduction.
Further, described high-efficient oxidant includes 3% aluminum sulfate, 82% sodium carboxymethylcellulose and 15%
High-efficient oxidant.
Verified by test of many times, the sewage constituted using the proportioning is imitated as optimum proportioning with the best ammonia nitrogen that goes
Really.
It is another object of the present invention to provide a kind of preparation method of efficient ammonia nitrogen remover, above-mentioned mesh of the invention
Technical scheme is that, comprise the following steps：
(1) aluminum sulfate, sodium carboxymethylcellulose, high-efficient oxidant are weighed according to above-mentioned part by weight, is added in blender, turned
It is well mixed within fast 15rpm, 5-10 minute；
(2) said mixture is placed in mixer, is 2 by the weight ratio of mixture and water：100 in mixer add go from
Sub- water, mixing time is 30-60min, is made solution.
By above-mentioned technical proposal, the present invention is prepared into a kind of liquid ammonia nitrogen remover, and preparation process is simple is readily transported
With
Add, and ammonia nitrogen removal agent in liquid form is added in sewage, reduces water body resistance, improves ammonia nitrogen removal
Efficiency.
In sum, a kind of efficient ammonia nitrogen remover and preparation method thereof that the present invention is provided, can destroy hydrone with
NH3
Intermolecular hydrogen bond, makes NH3Molecule breaks away from the adhesion of hydrone, promotes the free state of ammonia nitrogen to convert, and improves common
Stripping
The low problem of the stripping efficiency of tower ammonia, significantly reduces the ammonia-nitrogen content in the sewage of high-concentration ammonia-nitrogen, is not required to secondary place
Reason, drop
Low processing cost, can be slowed down tower wall fouling, filler and be blocked with oxidation Decomposition gas chromatography, microorganism or algae,
Have
Effect ground deodorization and discoloration and preparation process is simple.
Specific embodiment
The present invention is described in further detail below.
Embodiment 1：
A kind of efficient ammonia nitrogen remover and preparation method thereof, including：
Aluminum sulfate：4kg
Sodium carboxymethylcellulose：82kg
High-efficient oxidant:C5H6Br2N2O2 and BCDMH are respectively 10kg and 4kg
Preparation technology and sewage treatment process are as follows：
(1) aluminum sulfate, sodium carboxymethylcellulose, high-efficient oxidant are weighed according to above-mentioned part by weight, is added in blender, turned
It is well mixed within fast 15rpm, 5-10 minute；
(2) above-mentioned solid mixture is placed in mixer, is 2 in the ratio of mixture and water：100 add in mixer and go
Ionized water, mixing time：30-60min, is made solution.
The difference of 2~embodiment of embodiment 7 is that the proportioning of component is different.
Table 1 is the weight (kg) of embodiment 2~each component of implementation 7
The sewage sample that ammonia-nitrogen content is 10300mg/L is taken, is provided by Jiangsu agrochemical Co., Ltd, the basicity for adjusting water sample is mixed
After closing uniformly, seven parts are equally divided into, be added in ammonia-nitrogen stripping tower in seven times, the efficient ammonia nitrogen removal in embodiment is not added with respectively
Efficient ammonia nitrogen remover in agent and addition embodiment 1 to embodiment 7, uses air stripping 1 hour respectively under the same conditions
Afterwards, water sample respectively after collection treatment, according to method using supernatant in Berthelot spectrophotometry seven parts of water samples of measure
Nitrogen content.
Then, determined by adding the efficient ammonia nitrogen remover in embodiment 1 to embodiment 7 and being not added with according to smelly threshold method
The stink of sewage after efficient ammonia nitrogen remover treatment, takes the sewage 10mL after treatment and adds the deionized water of different volumes by sewage
Various concentrations are diluted to, the stink of sample is heard successively from low concentration to high concentration, the water sample for snuffing stink adds the volume of water to get over
It is few, illustrate that the deodorizing effect of efficient ammonia nitrogen remover is better, as a result as shown in table 2.
Table 2 is prior art and the NH_3-N treating result of 1~embodiment of embodiment 7
| Ammonia-nitrogen content/(mg/L) | Smelly threshold value/water sample dilutes volume (mL) | |
| Not adding medicine | 556.3 | 50 |
| Embodiment 1 | 38.2 | 10 |
| Embodiment 2 | 25.1 | 0 |
| Embodiment 3 | 41.4 | 10 |
| Embodiment 4 | 30.8 | 5 |
| Embodiment 5 | 31.4 | 5 |
| Embodiment 6 | 27.5 | 0 |
| Embodiment 7 | 41.3 | 5 |
Result shows that, with commonly the stripping tower of adding medicine does not process the ammonia-nitrogen sewage of high concentration, ammonia-nitrogen content is reduced to
556.3mg/L, same ammonia nitrogen is processed with the stripping tower of the efficient ammonia nitrogen remover for having added embodiment of the present invention 1- embodiments 7
Sewage, ammonia-nitrogen content is reduced to below 50mg/L, and the used time is very short, significantly improves the efficiency of NH_3-N treating, and add real
Stink substantially mitigates after applying the efficient ammonia nitrogen remover of a 1- embodiment 7.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification without creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected by Patent Law in the right of invention.
Claims (5)
1. a kind of efficient ammonia nitrogen remover, it is characterized in that：The aluminum sulfate of 1-5%, part by weight are accounted for including part by weight account for 80-
90% sodium carboxymethylcellulose and part by weight account for the high-efficient oxidant of 5-20%.
2. efficient ammonia nitrogen remover according to claim 1, it is characterized in that：The high-efficient oxidant is potassium ferrate, two
One or two in bromine glycolylurea, BCDMH or DBNPA.
3. efficient ammonia nitrogen remover according to claim 2, it is characterized in that：The high-efficient oxidant is that weight ratio is 2.5：
1 C5H6Br2N2O2 and the mixture of BCDMH.
4. any one efficient ammonia nitrogen remover according to claim 1-3, it is characterized in that：Including 3% aluminum sulfate,
82% sodium carboxymethylcellulose and 15% high-efficient oxidant.
5. a kind of preparation method of efficient ammonia nitrogen remover, including any one efficient ammonia nitrogen removal described in claim 1-4
Agent, it is characterized in that：Comprise the following steps：
Aluminum sulfate, sodium carboxymethylcellulose, high-efficient oxidant are weighed according to above-mentioned part by weight respectively, in addition blender,
It is well mixed within rotating speed 15rpm, 5-10 minute；
Said mixture is placed in mixer, is 2 by the weight ratio of mixture and water：100 add deionization in mixer
Water, mixing time is 30-60min, is made solution.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110697824A (en) * | 2019-10-16 | 2020-01-17 | 德蓝水技术股份有限公司 | Ammonia nitrogen remover and preparation method thereof |
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| US4737293A (en) * | 1985-08-01 | 1988-04-12 | Betz Laboratories, Inc. | Process for reducing the content of trihalomethane compounds and precursors thereof in influent water |
| US6207059B1 (en) * | 1998-03-23 | 2001-03-27 | Achemco, Inc. | Process for treating wastewater |
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Effective date of registration: 20180112 Address after: Yao Chong Street Road in Qixia District of Nanjing city in Jiangsu province 210046 No. 1 Building 2 Room 101 Applicant after: Nanjing Yubao Source Environmental Protection Technology Co.,Ltd. Address before: Room 301, No. 32, Dashiqiao 32, Xuanwu District, Jiangsu, Jiangsu Applicant before: Feng Zhixiang |
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