CN106587272A - Ammonia-containing wastewater treatment method - Google Patents
Ammonia-containing wastewater treatment method Download PDFInfo
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- CN106587272A CN106587272A CN201611199922.5A CN201611199922A CN106587272A CN 106587272 A CN106587272 A CN 106587272A CN 201611199922 A CN201611199922 A CN 201611199922A CN 106587272 A CN106587272 A CN 106587272A
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- Prior art keywords
- waste water
- ammonia
- deamination
- water
- film
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Classifications
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- 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
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention belongs to the field of water treatment, and particularly relates to an ammonia-containing wastewater treatment method. The method comprises the following steps of: a, carrying out pH regulation on ammonia-containing wastewater to obtain alkali wastewater, wherein a pH value of the alkali wastewater is greater than or equal to 10; b, heating the alkali wastewater to a temperature of 35 to 60 DEG C to obtain heated wastewater; and c, treating the heated wastewater in a membrane deamination device to obtain deaminated wastewater, wherein a membrane element in the membrane deamination device is a degased membrane. According to the method disclosed by the invention, the pH and the temperature of the wastewater entering the membrane deamination device are subjected to optimal selection, so that ammonia in the wastewater can be efficiently removed in the membrane deamination device. An experimental result shows that after the ammonia-containing wastewater is treated according to the method provided by the invention, obtained effluent has ammonia content of lower than 8mg/L.
Description
Technical field
The invention belongs to water treatment field, more particularly to a kind of Treatment Method of Ammonia-contained Waste Water.
Background technology
Growth is developed rapidly with microelectronics industry, the high-ammonia wastewater for producing therefrom becomes industry development restraining factors
One of.Ammonia-containing water enters water body, particularly flow more slow lake, bay, easily causes algae and other micro- lifes in water
Thing amount reproduction, forms eutrophication pollution, except water treatment plants operation can be made difficult, causes outside the abnormal flavour of drinking water,
Decline can oxygen in water when serious, Fish mortality results even in the dry destruction in lake.Ammonia-containing water is as worked as nothing
During number reuse, the ammonia in water can promote the breeding of microorganism in aqueduct and water equipment, form biofouling, block pipeline
And water equipment, and affect heat exchange efficiency.Therefore, ammonia-containing water must be carried out after deamination process, just can be discharged or sharp again
With.
The deamination processing method of waste water is mainly blown by many including the way of distillation, soil irrigation method, ion exchange, air
De- method, burning method, catalystic pyrolysis, electrochemical treatment, biological fixation method etc..Wherein, the most widely used waste water deaminizing
Method is air stripping method.So-called air stripping method is that gas is passed through in waste water, is allowed to mutually be fully contacted, and makes the ammonia in water
Through gas-liquid interface, to gas phase transfer, so as to reach the purpose of removing ammonia, but the ammonia removal efficiency of air stripping method is relatively low, while
Environmental health is seriously polluted.
The content of the invention
In view of this, it is an object of the invention to provide a kind of Treatment Method of Ammonia-contained Waste Water, the ammonia removal efficiency of the method compared with
It is high.
The invention provides a kind of Treatment Method of Ammonia-contained Waste Water, comprises the following steps：
A), pH regulator is carried out to ammonia-containing water, obtains alkaline waste water；PH value >=10 of the alkaline waste water；
B), the alkaline waste water is warming up to into 35～60 DEG C, obtains intensification waste water；
C), the intensification waste water is processed in film deamination apparatus, deamination waste water is obtained；In the film deamination apparatus
Membrane component be degassing film.
Preferably, the membrane aperture of the degassing film is 0.02～0.2 μm.
Preferably, in step a), the pH value of the alkaline waste water is 10～12.
Preferably, in step b), the alkaline waste water is warming up to 40～55 DEG C.
Preferably, in step c), before the intensification waste water is processed in film deamination apparatus, first filtered, filtered
Except the impurity of particle diameter >=1 μm in waste water.
Preferably, the ammonia-containing water is carried out before pH regulator, first carries out pre-filtering, filters particle diameter >=50 μm in waste water
Impurity.
Preferably, also include：
Using the deamination waste water as thermal source, exchanged heat with the alkaline waste water；Alkaline waste water after heat exchange is carried out again
Step b) process.
Preferably, also include：
PH regulator is carried out to the deamination waste water, the processed waste water that pH value is 7～9 is obtained.
Preferably, the ammonia-nitrogen content of the ammonia-containing water is 30～1500mg/L.
Preferably, the pH value of the ammonia-containing water is 7～9.
Compared with prior art, the invention provides a kind of Treatment Method of Ammonia-contained Waste Water, comprises the following steps：A), to containing
Ammonia waste water carries out pH regulator, obtains alkaline waste water；PH value >=10 of the alkaline waste water；B), the alkaline waste water is warming up to
35～60 DEG C, obtain intensification waste water；C), the intensification waste water is processed in film deamination apparatus, deamination waste water is obtained；Institute
It is degassing film to state the membrane component in film deamination apparatus.The processing method that the present invention is provided carries out pH regulator and intensification to waste water first
Process, afterwards the waste water of optimum pH and temperature is passed through into deamination in film deamination apparatus, the membrane component of film deamination apparatus is degassing
Film, can enable the ammonia in waste water through film, and hydrone can not be passed through because surface tension is different, useless containing ammonia so as to realize
The ammonia removal of water.The present invention is optimized selection to the pH and temperature of the waste water into film deamination apparatus, makes the ammonia in waste water
Can be with efficient removal in film deamination apparatus.Test result indicate that, ammonia-containing water is processed according to the method that the present invention is provided
Afterwards, the water outlet ammonia content for obtaining is less than 8mg/L.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can be with basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is ammonia-containing water processing technological flow figure provided in an embodiment of the present invention.
Specific embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
The invention provides a kind of Treatment Method of Ammonia-contained Waste Water, comprises the following steps：
A), pH regulator is carried out to ammonia-containing water, obtains alkaline waste water；PH value >=10 of the alkaline waste water；
B), the alkaline waste water is warming up to into 35～60 DEG C, obtains intensification waste water；
C), the intensification waste water is processed in film deamination apparatus, deamination waste water is obtained；In the film deamination apparatus
Membrane component be degassing film.
In the present invention, first pH regulator is carried out to ammonia-containing water.It is described to contain in one embodiment that the present invention is provided
The ammonia-nitrogen content of ammonia waste water is 30～1500mg/L, specifically may be selected to be 50mg/L, 90mg/L, 300mg/L or 1300mg/L.
In one embodiment that the present invention is provided, the pH value of the ammonia-containing water is 7～9, specifically may be selected to be 7,7.5,7.9,8,
8.3rd, 8.5 or 9.In the present invention, the mode of the pH regulator is preferably and alkaline matter, the alkalescence is added in ammonia-containing water
Material preferably includes sodium hydroxide and/or potassium hydroxide.After pH regulator is finished, alkaline waste water is obtained.The pH of the alkaline waste water
Value >=10, preferably 11～12.
In the present invention, the ammonia-containing water is carried out before pH regulator, preferably first carries out pre-filtering, filters particle diameter in waste water
>=50 μm of impurity.In the present invention, the pre-filtering is carried out in prefilter, and the present invention is to the prefilter without spy
Do not limit, it is preferred to use bag filter well known to those skilled in the art, the filter bag aperture of the bag filter preferably≤
50μm。
After obtaining alkaline waste water, the alkaline waste water is warming up to into 35～60 DEG C, is preferably warming up to 40～55 DEG C, more preferably
It is warming up to 45～50 DEG C.To save the power consumption for heating up, the present invention is useless with the alkalescence preferably using the deamination waste water as thermal source
Water is exchanged heat；Alkaline waste water after heat exchange carries out again hyperthermic treatment.It is warmed up to and requires after temperature, obtains intensification waste water.
After obtaining intensification waste water, the intensification waste water is processed in film deamination apparatus, in the film deamination apparatus
Membrane component be degassing film.In the present invention, the material of the degassing film can be modified polypropene, the fenestra of the degassing film
Footpath may be selected to be 0.02～0.2 μm.In one embodiment that the present invention is provided, the membrane component is by some rolling degassing films
Composition, the membrane area of every rolling degassing film is 10～100m2, preferably 30～90m2；In one embodiment that the present invention is provided
In, the membrane component is made up of 10～100 rolling degassing films, specifically may be selected 30,40 or 80.In the present invention, it is described
Membrane component in film deamination apparatus can be the membrane component of single-stage membrane component, or plural serial stage, can be specifically 4 grades of strings
Connection, 6 grades of series connection or 8 grades of series connection.During intensification waste water is processed in film deamination apparatus, ammonia can pass through film, and water
Molecule can not be passed through because surface tension is different, so as to realize the ammonia removal of waste water.Waste water through film deamination apparatus process after,
Obtain deamination waste water.
In the present invention, before the intensification waste water is processed in film deamination apparatus, first filtered, filtered waste water
The impurity of middle particle diameter >=1 μm.In the present invention, the filtration is carried out in accurate filter, and the present invention is to the secondary filter
Device is not particularly limited, it is preferred to use cartridge filter well known to those skilled in the art, the opening of sieve of the cartridge filter
Footpath preferably≤1 μm.
After obtaining deamination waste water, the pH to make deamination waste water meets outer row's standard, and deamination waste water carries out pH described in preferred pair
Adjust.In the present invention, the mode of the pH regulator is preferably and acidic materials is added in ammonia-containing water, and the basic species are of fine quality
Choosing includes hydrochloric acid and/or sulphuric acid.After pH regulator is finished, weakly acidic pH waste water is obtained.The pH value of the weakly acidic pH waste water is preferably 7～
9, concretely 8.In the present invention, if carrying out heat exchange process as thermal source using the deamination waste water, first deamination waste water is entered
Row heat exchange is processed, and carries out pH value regulation again afterwards.
In one embodiment that the present invention is provided, the process of ammonia-containing water is carried out according to flow process shown in Fig. 1, Fig. 1 is this
The ammonia-containing water processing technological flow figure that inventive embodiments are provided.As shown in figure 1, ammonia-containing water enters first ammonia-containing water collection
Groove；Then pre-filtering is carried out in prefilter；Afterwards pH regulator is carried out to pre-filtering waste water using alkaline matter；Then complete
The waste water of pH regulator is exchanged heat in heat exchanger 1 with the waste water of follow-up deamination, realizes the pre- intensification of waste water；Pre- intensification afterwards
Waste water exchanges heat in heat exchanger 2 with external heat source, is warmed up to waste water and requires temperature；Then the waste water after heating up is in secondary filter
Filtered in device；Waste gas after filtering afterwards carries out deamination in film deamination apparatus；Then the waste water of deamination is in heat exchanger 1
With pre-filtering before and adjust the waste water of pH and exchanged heat, realize the cooling of waste water；The waste water finally lowered the temperature uses acidic materials
Waste water to lowering the temperature carries out pH regulator, obtains the waste water of qualified discharge.
The processing method that the present invention is provided carries out pH regulator and hyperthermic treatment to waste water first, afterwards by optimum pH and temperature
The waste water of degree is passed through deamination in film deamination apparatus, and the membrane component of film deamination apparatus is degassing film, and the ammonia in waste water can be enable saturating
Film is crossed, and hydrone can not be passed through because surface tension is different, so as to realize the ammonia removal of ammonia-containing water.The present invention is to entering
The pH and temperature of the waste water of film deamination apparatus is optimized selection, the ammonia in waste water is efficiently taken off in film deamination apparatus
Remove.Test result indicate that, after ammonia-containing water is processed according to the method that the present invention is provided, the water outlet ammonia content for obtaining is less than
8mg/L。
For the sake of becoming apparent from, it is described in detail below by following examples.
Embodiment 1
Electronics industry ammonia-containing water project, day output：720t/d
Import ammonia nitrogen：90mg/L
Outlet ammonia nitrogen：6.3mg/L
Final outflow water is flowed to：Send head factory sewage disposal master station qualified discharge.
Ammonia-containing water after stripping process enters collecting tank, and the ammonia-containing water ammonia nitrogen value being collected is 90mg/L, warm
35 DEG C of degree, pH value 8.3；These ammonia-containing waters first pass around the granule foreign that 50 μm of bag type filterings are removed in waste water, then use hydrogen
Sodium oxide carries out pH adjustment to waste water, and the pH for making waste water reaches 11, then adjust pH value obtain waste water send into heat exchanger 1 carry out from
Heat exchange heats up (that is, with the wastewater heat exchange of follow-up deamination) in advance, and temperature is promoted to 39 DEG C, then enters back into heat exchanger 2 and enters traveling one
Step is warming up to 45 DEG C, and the waste water up to standard that heats up carries out deamination after 1 μm of cartridge filter into film deamination apparatus again；Film takes off
Ammonia device includes 40 rolling degassing film (membrane materials：Modified polypropene；Membrane pore size：0.02～0.2 μm)；Membrane area：90m2/
Only), using 4 grades of series models；Eventually pass through the waste water after deamination and enter back into heat exchanger 1 and carry out exchanging heat certainly and lower the temperature, temperature is down to
41 DEG C, then carrying out simple pH regulator with sulphuric acid again can send into deamination water tank qualified discharge to after 8, final discharge ammonia-containing water ammonia
Values of nitrogen might is 6.3mg/L.
Embodiment 2
Electronics industry ammonia-containing water project, day output：720t/d
Import ammonia nitrogen：1300mg/L
Outlet ammonia nitrogen：7.5mg/L
Final outflow water is flowed to：Send head factory sewage disposal master station qualified discharge.
Production discharge ammonia-containing water enter collecting tank, the ammonia-containing water ammonia nitrogen value being collected be 1300mg/L, temperature 23
DEG C, pH value 8.5；These ammonia-containing waters first pass around the granule foreign that 50 μm of bag type filterings are removed in waste water, then use hydroxide
Sodium carries out pH adjustment to waste water, and the pH for making waste water reaches 11, then carries out from heat exchange adjusting pH value and obtaining waste water and send into heat exchanger 1
Heat up (that is, with the wastewater heat exchange of follow-up deamination) in advance, temperature is promoted to 46 DEG C, then enters back into heat exchanger 2 and is further risen
To 50 DEG C, the waste water up to standard that heats up carries out deamination to temperature after 1 μm of cartridge filter into film deamination apparatus again；Film deamination is filled
Put including 80 rolling degassing film (membrane materials：Modified polypropene；Membrane pore size：0.02～0.2 μm)；Membrane area：90m2/ only),
Using 8 grades of series models；Eventually pass through the waste water after deamination and enter back into heat exchanger 1 and carry out exchanging heat certainly and lower the temperature, temperature is down to 27 DEG C,
Then carrying out simple pH regulator with sulphuric acid again can send into deamination water tank qualified discharge to after 8, final discharge ammonia-containing water ammonia nitrogen value
For 7.5mg/L.
Embodiment 3
Electronics industry ammonia-containing water project, day output：120t/d
Import ammonia nitrogen：300mg/l
Outlet ammonia nitrogen：5.5mg/l
Final outflow water is flowed to：Send head factory sewage disposal master station qualified discharge.
Production line discharge ammonia-containing water enter collecting tank, the ammonia-containing water ammonia nitrogen value being collected be 300mg/L, temperature 20
DEG C, pH value 7.9；These ammonia-containing waters first pass around the granule foreign that 50 μm of bag type filterings are removed in waste water, then use hydroxide
Sodium carries out pH adjustment to waste water, and the pH for making waste water reaches 11, then carries out from heat exchange adjusting pH value and obtaining waste water and send into heat exchanger 1
Heat up (that is, with the wastewater heat exchange of follow-up deamination) in advance, temperature is promoted to 40 DEG C, then enters back into heat exchanger 2 and is further risen
To 45 DEG C, the waste water up to standard that heats up carries out deamination to temperature after 1 μm of cartridge filter into film deamination apparatus again；Film deamination is filled
Put including 30 rolling degassing film (membrane materials：Modified polypropene；Membrane pore size：0.02～0.2 μm)；Membrane area：30m2/ only),
Using 6 grades of series models；Eventually pass through the waste water after deamination and enter back into heat exchanger 1 and carry out exchanging heat certainly and lower the temperature, temperature is down to 25 DEG C,
Then carrying out simple pH regulator with sulphuric acid again can send into deamination water tank qualified discharge to after 7.5, final discharge ammonia-containing water ammonia nitrogen
It is worth for 5.5mg/L.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of Treatment Method of Ammonia-contained Waste Water, comprises the following steps：
A), pH regulator is carried out to ammonia-containing water, obtains alkaline waste water；PH value >=10 of the alkaline waste water；
B), the alkaline waste water is warming up to into 35～60 DEG C, obtains intensification waste water；
C), the intensification waste water is processed in film deamination apparatus, deamination waste water is obtained；Film in the film deamination apparatus
Element is degassing film.
2. processing method according to claim 1, it is characterised in that the membrane aperture of the degassing film is 0.02～0.2 μm.
3. processing method according to claim 1, it is characterised in that in step a), the pH value of the alkaline waste water is 10
～12.
4. processing method according to claim 1, it is characterised in that in step b), the alkaline waste water is warming up to 40～
55℃。
5. processing method according to claim 1, it is characterised in that in step c), the intensification waste water is filled in film deamination
Before being processed in putting, first filtered, filtered the impurity of particle diameter >=1 μm in waste water.
6. processing method according to claim 5, it is characterised in that the ammonia-containing water is carried out before pH regulator, advanced
Row pre-filtering, filters the impurity of particle diameter >=50 μm in waste water.
7. processing method according to claim 1, it is characterised in that also include：
Using the deamination waste water as thermal source, exchanged heat with the alkaline waste water；Alkaline waste water after heat exchange carries out again step
B) process.
8. processing method according to claim 1, it is characterised in that also include：
PH regulator is carried out to the deamination waste water, the processed waste water that pH value is 7～9 is obtained.
9. processing method according to claim 1, it is characterised in that the ammonia-nitrogen content of the ammonia-containing water is 30～
1500mg/L。
10. the processing method according to any one of claim 1～9, it is characterised in that the pH value of the ammonia-containing water is 7
～9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611199922.5A CN106587272A (en) | 2016-12-22 | 2016-12-22 | Ammonia-containing wastewater treatment method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611199922.5A CN106587272A (en) | 2016-12-22 | 2016-12-22 | Ammonia-containing wastewater treatment method |
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| CN106587272A true CN106587272A (en) | 2017-04-26 |
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ID=58600883
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| CN201611199922.5A Pending CN106587272A (en) | 2016-12-22 | 2016-12-22 | Ammonia-containing wastewater treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966530A (en) * | 2017-05-25 | 2017-07-21 | 苏州依斯倍环保装备科技有限公司 | For the processing unit containing organic solvent high ammonia-nitrogen wastewater |
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| CN103130361A (en) * | 2013-03-22 | 2013-06-05 | 天津大学 | Ammonia-removing method and device for high-concentration ammonia-containing wastewater |
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| CN205382036U (en) * | 2016-01-28 | 2016-07-13 | 苏州澄江环境科技有限公司 | Contain treatment of ammonia nitrogen waste water system |
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| CN102491576A (en) * | 2011-12-01 | 2012-06-13 | 金川集团有限公司 | Method for treating wastewater containing ammonia |
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| CN106966530A (en) * | 2017-05-25 | 2017-07-21 | 苏州依斯倍环保装备科技有限公司 | For the processing unit containing organic solvent high ammonia-nitrogen wastewater |
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| CB02 | Change of applicant information |
Address after: 101500 Canbo Road, Miyun Industrial Development Zone, Beijing Applicant after: Gaopin meiteli environment science and Technology (Beijing) Co., Ltd. Address before: 100097 office building, B District, Jin Yuan times business center, 1 far road, Beijing, Haidian District 807 Applicant before: Gaopin meiteli environment science and Technology (Beijing) Co., Ltd. |
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Application publication date: 20170426 |
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