CN108996825A - A kind of total nitrogen processing method based on deamination film - Google Patents
A kind of total nitrogen processing method based on deamination film Download PDFInfo
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- CN108996825A CN108996825A CN201810890368.8A CN201810890368A CN108996825A CN 108996825 A CN108996825 A CN 108996825A CN 201810890368 A CN201810890368 A CN 201810890368A CN 108996825 A CN108996825 A CN 108996825A
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- waste water
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/24—Sulfates of ammonium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/24—Sulfates of ammonium
- C01C1/242—Preparation from ammonia and sulfuric acid or sulfur trioxide
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/586—Treatment of water, waste water, or sewage by removing specified dissolved compounds by removing ammoniacal nitrogen
-
- 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
- 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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1215—Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a kind of total nitrogen processing method based on deamination film, include the following steps: to be passed through waste water in aerobic tank and carry out aerobic biodegradation, while reducing COD, converts ammonium nitrogen for the part nitrogen substance in waste water；Entered in secondary settling tank by the waste water of Aerobic biological process, activated sludge sedimentation concentration, partial reflux, part is discharged；Waste water and clear liquid after step 2 precipitating enters No. 1 pH value adjustment pond, and lye is added in pH value adjustment pond, pH value is adjusted to 10 or more, is stirred；Waste water is entered in deamination equipment through pump again and is converted into ammonia, and is reacted with wherein dilute sulfuric acid and generates ammonium sulfate；The ammonium sulfate of generation is recycled, and waste water is entered into No. 2 pH value adjustment ponds, after adjusting pH value to 6.5-9, ammonia nitrogen removal agent is added into waste water.The present invention is degraded using the aerobe in aerobic tank, while reducing COD, converts ammonium nitrogen for the part nitrogen substance in waste water, and by control dissolved oxygen content, reduce the generation of nitrate nitrogen.
Description
Technical field
The present invention relates to technical field of waste water processing, and in particular to a kind of nitrogenous effluent treatment method.
Background technique
With the continuous propulsion of process of industrialization, the environmental pollution got worse, especially water pollution are caused, is exacerbated
Water resource it is in short supply, water resources problems have become an important factor in order of China's economic and social sustainable development.It is useless
The recycling of water has the function of very big to alleviating city water resource shortage, and waste water passes through regeneration treatment appropriate, repeatable
The multiple uses such as landscape water, green area irrigation, industry cooling are used in, realize that water resource recycles.Wherein, ammonia nitrogen in high density is useless
Water is one kind difficult to deal in industrial wastewater, and source is wide and discharge amount is big, also becomes the restraining factors of relevant industries development
One of.
Common denitrification and dephosphorization method has materialization denitrogenation dephosphorizing method and biochemical denitrification dephosphorization method, and chemical method can preferably more
Mend the deficiency of dephosphorization.At this stage without effective, quickly processing nitrate nitrogen chemical method, there is processing equipment, only pass through ammonia nitrogen
Nitration reaction is converted into nitrate nitrogen, removes that the denitrifying capacity of nitrate nitrogen is not or very weak, and reaction rate is slower, volume load
Lower (only 0.1kg/ (m3* d)), thus need pool capacity larger, but quite a few enterprise does not have abundant space to build anti-nitre
Change pond body.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of total nitrogen processing methods based on deamination film, including walk as follows
It is rapid:
1) waste water is passed through in aerobic tank and carries out aerobic biodegradation, it is while reducing COD, the part in waste water is nitrogenous
Substance is converted into ammonium nitrogen；
2) entered in secondary settling tank by the waste water of Aerobic biological process, activated sludge sedimentation concentration, partial reflux, part is arranged
Out；
3) waste water and clear liquid after step 2 precipitating enters No. 1 pH value adjustment pond, lye is added in pH value adjustment pond, by PH
Value is adjusted to 10 or more, is stirred；
4) waste water in step 3 enters in deamination equipment through pump, and since pH value is higher, ammonium nitrogen is converted into ammonia, penetrates
Deamination film enters in membrane module tube side, reacts with wherein dilute sulfuric acid, generates high-purity sulfuric acid ammonium；
5) ammonium sulfate of generation is recycled, the waste water by step 4 enters No. 2 pH value adjustment ponds, and to conditioning tank
Middle addition acid solution adjusts pH value 6.5-9；
6) ammonia nitrogen removal agent is added into the waste water handled by step 5, it is ensured that ammonia nitrogen is up to standard.
Further, the deamination equipment is deamination membrane module, and nitrogen-containing wastewater flows the shell side in membrane module, and acid absorbs
Liquid stream is moved in the tube side of membrane module.
Further, a dissolved oxygen controller of the oxidation pond company passes through control for controlling the dissolved oxygen amount in oxidation pond
Dissolved oxygen amount processed reduces nitrate nitrogen and generates, and dissolved oxygen control is in 2mg/L hereinafter, and ensuring COD degradation.
Further, the microbe carrier containing aeration bacteria and nitrifier in the aerobic tank.
Nitrogen in waste water is oxidized to ammonium nitrogen using oxidation pond is existing, and passes through control by treatment process of the invention
Dissolved oxygen content, reduces the generation of nitrate nitrogen, and deamination film device is recycled efficiently can be quickly translated into ammonium salt, and into
Row recycles, and is not take up place.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
A specific embodiment of the invention is illustrated below in conjunction with attached drawing.
As shown in Figure 1, the deamination equipment that the present invention uses is deamination membrane module, the waste water containing ammonia nitrogen is flowed in membrane module
Shell side (on the outside of hollow fiber film thread), tube side of the sour absorbing liquid flowing in membrane module (on the inside of doughnut).In waste water
When middle PH is improved or temperature improves, balance described above will move right, ammonium ion NH4 +It will become free gaseous state
NH3.And gaseous state NH at this time3The micropore that can pass through doughnut surface absorbs liquid phase from the acid that the waste water in shell side mutually enters tube side,
The NH for becoming ionic state again at once is absorbed by acid solution4 +.Deamination film device technology NH3Separation and absorption be in the interior outside of film wire
It is completed at the same time, saves the movement of traditional handicraft purging air, save a large amount of power consumption.
Oxidation processes are carried out to nitrogenous effluent first with oxidation pond, oxidation pond connects a dissolved oxygen controller for controlling
Oxygen content in oxidation pond can also accommodate the microbe carrier of ammonia oxidation bacteria and anaerobic ammonia oxidizing bacteria in oxidation pond, utilize micro- life
Object aoxidizes nitrogenous effluent.Nitrogen substance in waste water is converted into ammonium nitrogen, reduces nitrate nitrogen and COD.Dissolved oxygen ---
The content of free oxygen, is indicated with DO in water, unit mg/L, and oxygen is the electron acceptor of nitration reaction, so the height of dissolved oxygen must
It will affect the process of nitration reaction.DO is reduced, reduces the amount that ammonia nitrogen is converted into nitrate nitrogen, it is ensured that nitrate is lower, ammonia nitrogen
Concentration is higher, removes ammonium nitrogen for the later period and creates conditions.Dissolved oxygen concentration is that 0.5-0.7 is the limit that nitrifier can be born,
It is related studies have shown that ammonia nitrogen is possible to nitrify completely as DO >=2mg/L, therefore dissolved oxygen is controlled in 2mg/L or less, it is ensured that
COD degradation simultaneously, prevents conversion of the ammonia nitrogen to nitrate nitrogen.
Waste water is passed through in secondary settling tank again, concentration and returnedactivatedsludge.The waste water containing ammonium nitrogen is passed through pH value again
Ph value is adjusted to 10, makes NH by conditioning tank, the lye into conditioning tank4 +Exist in the form of ammonium hydroxide, then waste water is passed through to waste water again
Desulphurization plant (i.e. deamination film device) adjusts the parameters such as temperature, and dilute sulfuric acid is added into desulphurization plant, gaseous state NH3By acid solution
Absorb the NH for becoming ionic state again at once4 +, to form ammonium sulfate, and ammonium sulfate is recycled, can be used to manufacture chemical fertilizer
Deng.
Then above-mentioned waste water is passed through again in pH value adjustment pond again, and adds hydrochloric acid etc. into the pH value adjustment pond,
By pH value adjustment to 6.5-9, waste water is then passed through NH_3-N treating and ensures pond, and ammonia nitrogen removal agent is added, is removed in waste water
Excessive ammonia nitrogen, makes waste water reach discharge standard.Ammonia nitrogen protective agent can choose sodium phosphate and magnesium chloride category etc., also can choose
Microbial reagent.
Claims (4)
1. a kind of total nitrogen processing method based on deamination film, it is characterised in that include the following steps:
1) waste water is passed through in aerobic tank and carries out aerobic biodegradation, while reducing COD, by the part nitrogen substance in waste water
It is converted into ammonium nitrogen；
2) entered in secondary settling tank by the waste water of Aerobic biological process, activated sludge sedimentation concentration, partial reflux, part is discharged；
3) waste water and clear liquid after step 2 precipitating enters No. 1 pH value adjustment pond, lye is added in pH value adjustment pond, by pH value tune
To 10 or more, it is stirred；
4) waste water in step 3 enters in deamination equipment through pump, and ammonium nitrogen is converted into ammonia, reacts with wherein dilute sulfuric acid, generates
Ammonium sulfate；
5) ammonium sulfate of generation is recycled, the waste water by step 4 enters No. 2 pH value adjustment ponds, and adds into conditioning tank
Enter acid solution, adjusts pH value 6.5-9；
6) ammonia nitrogen removal agent is added into the waste water handled by step 5.
2. the total nitrogen processing method according to claim 1 based on deamination film, it is characterised in that: the deamination equipment is de-
Ammonia membrane module, nitrogen-containing wastewater flow the shell side in membrane module, and sour absorbing liquid flowing is in the tube side of membrane module.
3. the total nitrogen processing method according to claim 1 based on deamination film, it is characterised in that: the oxidation pond connects a one
A dissolved oxygen controller reduces nitrate nitrogen by control dissolved oxygen amount and generates for controlling the dissolved oxygen amount in oxidation pond, and dissolved oxygen control exists
2mg/L is hereinafter, and ensure COD degradation.
4. the total nitrogen processing method according to claim 1 based on deamination film, it is characterised in that: contain in the aerobic tank
The microbe carrier of aeration bacteria and nitrifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810890368.8A CN108996825A (en) | 2018-08-01 | 2018-08-01 | A kind of total nitrogen processing method based on deamination film |
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|---|---|---|---|
| CN201810890368.8A CN108996825A (en) | 2018-08-01 | 2018-08-01 | A kind of total nitrogen processing method based on deamination film |
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| CN108996825A true CN108996825A (en) | 2018-12-14 |
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| CN201810890368.8A Pending CN108996825A (en) | 2018-08-01 | 2018-08-01 | A kind of total nitrogen processing method based on deamination film |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110745989A (en) * | 2019-10-25 | 2020-02-04 | 湖南中冶长天节能环保技术有限公司 | Activated carbon flue gas purification acid-making wastewater zero-discharge process and system |
| CN111547939A (en) * | 2020-05-09 | 2020-08-18 | 四川省生态环境科学研究院 | High-concentration wastewater dephosphorization process |
| CN111762881A (en) * | 2020-06-03 | 2020-10-13 | 北京科技大学 | High-nitrogen-content organic matter anaerobic fermentation system and method for regulating and controlling ammonia nitrogen through membrane absorption |
| CN113402115A (en) * | 2021-06-15 | 2021-09-17 | 中山大学 | Low-carbon source sewage treatment device and treatment method |
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| US9452938B2 (en) * | 2013-06-09 | 2016-09-27 | Morton Orentlicher | Ammonia capture recovery system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110745989A (en) * | 2019-10-25 | 2020-02-04 | 湖南中冶长天节能环保技术有限公司 | Activated carbon flue gas purification acid-making wastewater zero-discharge process and system |
| CN110745989B (en) * | 2019-10-25 | 2022-02-18 | 湖南中冶长天节能环保技术有限公司 | Activated carbon flue gas purification acid-making wastewater zero-discharge process and system |
| CN111547939A (en) * | 2020-05-09 | 2020-08-18 | 四川省生态环境科学研究院 | High-concentration wastewater dephosphorization process |
| CN111547939B (en) * | 2020-05-09 | 2022-03-22 | 四川省生态环境科学研究院 | High-concentration wastewater dephosphorization process |
| CN111762881A (en) * | 2020-06-03 | 2020-10-13 | 北京科技大学 | High-nitrogen-content organic matter anaerobic fermentation system and method for regulating and controlling ammonia nitrogen through membrane absorption |
| CN113402115A (en) * | 2021-06-15 | 2021-09-17 | 中山大学 | Low-carbon source sewage treatment device and treatment method |
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Application publication date: 20181214 |