CN107827323A - A kind of processing unit of the high ammonia nitrogen organic wastewater of high salinity - Google Patents
A kind of processing unit of the high ammonia nitrogen organic wastewater of high salinity Download PDFInfo
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- CN107827323A CN107827323A CN201711285551.7A CN201711285551A CN107827323A CN 107827323 A CN107827323 A CN 107827323A CN 201711285551 A CN201711285551 A CN 201711285551A CN 107827323 A CN107827323 A CN 107827323A
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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
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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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
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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
- C02F1/22—Treatment of water, waste water, or sewage by freezing
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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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
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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
- 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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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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
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/307—Nitrification and denitrification treatment characterised by direct conversion of nitrite to molecular nitrogen, e.g. by using the Anammox process
-
- 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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- 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 provides a kind of processing unit of the high high ammonia nitrogen organic wastewater of salinity, it is related to field of waste water treatment.Processing unit includes pretreatment unit, the unit that desalts, PH adjusting meanss, stripping device and PH call-back devices.Pretreatment unit includes refrigerating plant, separator and heater.The unit that desalts includes triple effect evaporator and centrifuge.PH adjusting meanss adjust the value of mixing liquid by receiving alkali lye.Stripping device is connected with adjusting means, including stripping tower, short distance nitration unit and the denitrification unit being sequentially connected.PH call-back devices are connected with the outlet of stripping device, and the waste water after processing is neutralized.A kind of processing unit of high high ammonia nitrogen organic wastewater of salinity of the present invention, due to being freezed, separated, thawing by waste water by pretreatment unit first, form the higher waste water of salinity and enter salt solution and desalt unit, improve the efficiency that desalts, and it is simple in construction, and cost is low.
Description
Technical field
The present invention relates to field of waste water treatment, more particularly to a kind of processing unit of the high high ammonia nitrogen organic wastewater of salinity.
Background technology
At present, discharged volume of industrial waste water is big, and pollutant kind is more, ammonia nitrogen is high, salinity is high, and category intractability is larger to give up
Water.In order to protect the living environment of the mankind, professional does unremitting effort always in terms of Industrial Wastewater Treatment.Although pass
The chemical treatment of system, biochemical treatment, materilization freatment method are constantly modified, but for high ammonia nitrogen, the industrial wastewater of high salinity
Processing is still a difficulty, needs to be captured.
Mainly there are physical method, chemical method, biological method currently for high salinity, the processing method of high ammonia-nitrogen wastewater
Deng, but due to physics, chemical method operating cost is higher, treatment effect is undesirable while easily causes secondary pollution and is difficult to
Promoted in practical application；Traditional biological method has when handling low ammonia nitrogen waste water and had great advantage, but meets ammonia nitrogen in waste water excessive concentration
When, the metabolism of microorganism can be suppressed, so that microorganism loses degradation capability.
Therefore, it is badly in need of researching and developing the high ammonia nitrogen organic waste-water treating apparatus of high salinity that a set of cost is low, effect is good.
The content of the invention
It is an object of the present invention to provide the high ammonia nitrogen treatment of Organic Wastewater dress of high salinity that a kind of cost is low, effect is good
Put.
Especially, the invention provides a kind of processing unit of the high high ammonia nitrogen organic wastewater of salinity, including：
Pretreatment unit, including for waste water to be become to the refrigerating plant of solid phase and liquid phase, for by the solid phase and institute
State the separator of liquid phase separation and the heater for the solid phase to be melted；
Desalt unit, including for carrying out the triple effect evaporator of desalination to the liquid phase and for the triple effect evaporator
Caused crystallization concentrate carries out the centrifuge of centrifugal dehydration；
PH adjusting meanss, the pH value of mixing liquid is adjusted by receiving alkali lye；
Stripping device, it is connected with the PH adjusting meanss, ammonia nitrogen removal processing is carried out to the waste water, including be sequentially connected
Stripping tower, short distance nitration unit and denitrification unit；
PH call-back devices, the outlet with the stripping device are connected, and the waste water after processing is neutralized；
Wherein, the mixing liquid includes the first liquid caused by after the solid phase is melted and the production after the liquid phase desalination
Raw second liquid.
Further, the entrance of the PH adjusting meanss is provided with one and is used for first liquid and second liquid
The blender of body mixing.
Further, the alkali lye is in sodium hydroxide, calcium hydroxide, calcium oxide, potassium hydroxide, sodium carbonate or potassium carbonate
One kind or at least two combination.
Further, the unit that desalts, the PH adjusting meanss, the entrance of the stripping device are respectively equipped with first
Elevator pump, the second elevator pump and the 3rd elevator pump.
Further, the stripping tower is internally provided with a heater.
Further, a heat exchanger is provided between the PH adjusting meanss and the stripping device.
Further, in addition to an air blower being aerated to the stripping tower and the short distance nitration unit.
Further, in addition to PH controllers and PH sensor, for the PH adjusting meanss and/or PH call-back devices
Automatically adjust.
Further, the pretreatment unit entrance point is provided with a saliferous rate for being used to detect the waste water saliferous rate and examined
Survey device.
The processing unit of a kind of high high ammonia nitrogen organic wastewater of salinity of the present invention, due to that will be given up by pretreatment unit first
Water cooling is frozen, separation, thawing, form the higher waste water of salinity and enter salt solution and desalt unit, raising is desalted efficiency, and structure is simple
Single, cost is low.
Further, the processing unit of the high ammonia nitrogen organic wastewater of high salinity of the invention, PH adjusting meanss and stripping device
Between be provided with a heat exchanger, reduce energy consumption.
Further, the processing unit of the high ammonia nitrogen organic wastewater of high salinity of the invention, is also equipped with one and blows described
The air blower that de- tower and the short distance nitration unit are aerated, improve efficiency.
According to the accompanying drawings will be brighter to the detailed description of the specific embodiment of the invention, those skilled in the art
Above-mentioned and other purposes, the advantages and features of the present invention.
Brief description of the drawings
Some specific embodiments of the present invention are described in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter.
Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that these
What accompanying drawing was not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is the schematic apparatus figure of processing unit according to an embodiment of the invention；
Fig. 2 is the schematic apparatus figure of processing unit in accordance with another embodiment of the present invention.
Reference in figure is：
1- pretreatment units, 2- desalt unit, 3-PH adjusting meanss, 4- stripping devices, 5-PH call-back devices, 6- mixing
Device, the elevator pumps of 7- first, the elevator pumps of 8- second, the elevator pumps of 9- the 3rd, 10- heat exchangers, 11- refrigerating plants, 12- separators,
13- heaters, 21- triple effect evaporators, 22- centrifuges, 41- stripping towers, 42- short distance nitration units, 43- denitrification units,
44- heaters, 45- air blowers.
Embodiment
Fig. 1 is the schematic apparatus figure of processing unit according to an embodiment of the invention.As shown in figure 1, processing unit
It may include pretreatment unit 1, the unit 2 that desalts, PH adjusting meanss 3, stripping device 4 and PH call-back devices 5 in general manner.Pretreatment
Unit 1 includes being used to waste water becoming the refrigerating plant 11 of solid phase and liquid phase, for by the separator of solid phase and liquid phase separation
12 and the heater 13 for solid phase to be melted.The unit 2 that desalts includes being used for the triple effect evaporator 21 that desalination is carried out to liquid phase
With the centrifuge 22 for carrying out centrifugal dehydration to crystallization concentrate caused by triple effect evaporator 21.PH adjusting meanss 3 are by connecing
Receive the pH value of alkali lye regulation mixing liquid.Stripping device 4 is connected with PH adjusting meanss 3, and ammonia nitrogen removal processing is carried out to waste water, including
Stripping tower 41, short distance nitration unit 42 and the denitrification unit 43 being sequentially connected.The outlet of PH call-back devices 5 and stripping device 4
It is connected, the waste water after processing is neutralized.After mixing liquid includes the first liquid caused by after solid phase is melted and liquid phase desalination
Caused second liquid.
The processing unit of a kind of high high ammonia nitrogen organic wastewater of salinity of the present invention, due to being incited somebody to action first by pretreatment unit 1
Waste water freezing, separation, thawing, form the higher waste water of salinity and enter salt solution and desalt unit 2, improve desalt efficiency, and structure
Simply, cost is low.
The processing step of the processing system of one embodiment of the invention as shown in Figure 1 includes：
High slat-containing wastewater is cooled to 0 DEG C in advance using refrigerating plant 11, the waste water cryogenic temperature after precooling is -15 DEG C, freezing
Time 7h, waste water become solid-liquid two-phase, and separator 12 is classified as solid phase and liquid phase.Liquid phase waste water is delivered into triple effect to steam
Send out device 21 and carry out desalination, the blended device of liquid after the liquid after desalination melts with solid phase mixes；
Alkali is first added to adjust PH to 10-11 the composite waste collected in PH adjusting meanss 3；
Then waste water introduces stripping tower 41 after mixing, and the most ammonia-nitrogen stripping in waste water is gone out, enters back into short distance
De-nitrification unit 42, remaining ammonia nitrogen continues to be oxidized to nitrite nitrogen in the presence of ammonia oxidation bacteria after stripping, subsequently into anti-
De-nitrification unit 43, in the presence of denitrifying bacteria, nitrite nitrogen is reduced into nitrogen and discharged；
The waste water after processing is finally delivered to acid adding in PH call-back devices and adjusts back PH to 6-9.
In order to further improve efficiency, present treatment device is also carried out including one to stripping tower 41 and short distance nitration unit 42
The air blower 45 of aeration.Further, a heater 44 is additionally provided with inside stripping tower 41.
In order to reduce energy consumption, a heat exchanger 10 is provided between PH adjusting meanss 3 and stripping device 4.
In order that the first liquid and second liquid are well mixed, the entrances of PH adjusting meanss 3 may be provided with one be used for will
First liquid and the blender 6 of second liquid mixing.
In the present invention, alkali lye is in sodium hydroxide, calcium hydroxide, calcium oxide, potassium hydroxide, sodium carbonate or potassium carbonate
It is a kind of or at least two combination.
In order to improve efficiency, make package unit even running, processing unit also in the unit 2 that desalts, PH adjusting meanss 3, blow
The entrance of de- device 4 is respectively equipped with the first elevator pump 7, the second elevator pump 8 and the 3rd elevator pump 9.
In order to detect the saliferous rate of waste water, freezing temperature is determined, the entrance point of pretreatment unit 11 is provided with one and is used to detect
The saliferous rate detection means (not shown) of waste water saliferous rate.
In order to further improve efficiency, processing unit also exposes including one to stripping tower 41 and short distance nitration unit 42
The air blower 45 of gas.
Processing unit can also include PH controllers and PH sensor, for PH adjusting meanss 3 and/or PH call-back devices
5 automatically adjust.
In order to which more accurately regulation pH value, the entrance point of pretreatment unit 1 are provided with one and are used to detect containing for waste water saliferous rate
Salt rate detection means.
Fig. 2 is the schematic apparatus figure of the processing unit of an alternative embodiment of the invention.Processing unit as shown in Figure 2
Handling process it is as follows：
High slat-containing wastewater is cooled to 0 DEG C in advance using refrigerating plant 11, the waste water cryogenic temperature after precooling is -15 DEG C, freezing
Time 7h, waste water become solid-liquid two-phase, and separator 12 is classified as solid phase and liquid phase.Liquid phase waste water is passed through into the first lifting
Pump 7 is delivered to triple effect evaporator 21 and carries out desalination, and the blended device 6 of liquid after the liquid after desalination melts with solid phase mixes；
Alkali is first added to adjust PH to 10-11 the composite waste collected in PH adjusting meanss 3；
Waste water is introduced to the stripping tower 41 of heater 44 by the second elevator pump 8 again, using the progress of air blower 45
Aeration, the most ammonia-nitrogen stripping in waste water is gone out, enters back into short distance nitration unit 42, remaining ammonia nitrogen is in ammonia oxygen after stripping
Continue to be oxidized to nitrite nitrogen in the presence of change bacterium, it is sub- in the presence of denitrifying bacteria subsequently into denitrification unit 43
Nitrate nitrogen is reduced into nitrogen and discharged；
Waste water after processing is delivered to acid adding in PH call-back devices and adjusts back PH to 6-9, waste water specific as follows returns into PH
After adjusting tank, the pH value detected is changed into signal specific via PH sensor and is sent to PH controllers, PH controllers are according to connecing
The signal behavior opening controlling valve door received, acid adding in tank is adjusted to PH by measuring pump, when the pH value that PH probes detect connects
When near, stop acid adding.Staff can read the pH value of waste water in state's regulating reservoir on meter displaying device；
Heat exchanger 10 is flowed through by outlet pipe via the hot waste water after processing, is changed by heat exchanger 10 with again flowing through
The untreated high concentration of hydrogen nitrogen waste water raw water of hot device 10 carries out heat exchange.
So far, although those skilled in the art will appreciate that detailed herein have shown and described multiple showing for the present invention
Example property embodiment, still, still can be direct according to present disclosure without departing from the spirit and scope of the present invention
It is determined that or derive many other variations or modifications for meeting the principle of the invention.Therefore, the scope of the present invention is understood that and recognized
It is set to and covers other all these variations or modifications.
Claims (9)
1. a kind of processing unit of the high ammonia nitrogen organic wastewater of high salinity, including：
Pretreatment unit, including for waste water to be become to the refrigerating plant of solid phase and liquid phase, for by the solid phase and the liquid
The separator of phase separation and the heater for the solid phase to be melted；
Desalt unit, including for carrying out the triple effect evaporator of desalination to the liquid phase and for being produced to the triple effect evaporator
Crystallization concentrate carry out centrifugal dehydration centrifuge；
PH adjusting meanss, the pH value of mixing liquid is adjusted by receiving alkali lye；
Stripping device, it is connected with the PH adjusting meanss, ammonia nitrogen removal processing, including the stripping being sequentially connected is carried out to the waste water
Tower, short distance nitration unit and denitrification unit；
PH call-back devices, the outlet with the stripping device are connected, and the waste water after processing is neutralized；
Wherein, it is caused after the first liquid caused by after the mixing liquid is melted including the solid phase and the liquid phase desalination
Second liquid.
2. processing unit according to claim 1, it is characterised in that the entrance of the PH adjusting meanss is provided with a use
In the blender for mixing first liquid and the second liquid.
3. processing unit according to claim 2, it is characterised in that the alkali lye is sodium hydroxide, calcium hydroxide, oxidation
One kind or at least two combination in calcium, potassium hydroxide, sodium carbonate or potassium carbonate.
4. processing unit according to claim 3, it is characterised in that the unit that desalts, the PH adjusting meanss, described
The entrance of stripping device is respectively equipped with the first elevator pump, the second elevator pump and the 3rd elevator pump.
5. processing unit according to claim 4, it is characterised in that the stripping tower is internally provided with a heater.
6. processing unit according to claim 5, it is characterised in that between the PH adjusting meanss and the stripping device
Provided with a heat exchanger.
7. processing unit according to claim 6, it is characterised in that also including one to the stripping tower and the short distance
The air blower that de-nitrification unit is aerated.
8. processing unit according to claim 7, it is characterised in that also including PH controllers and PH sensor, for pair
The PH adjusting meanss and/or PH call-back devices automatically adjust.
9. processing unit according to claim 8, it is characterised in that the pretreatment unit entrance point is provided with one and is used for
Detect the saliferous rate detection means of the waste water saliferous rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711285551.7A CN107827323A (en) | 2017-12-07 | 2017-12-07 | A kind of processing unit of the high ammonia nitrogen organic wastewater of high salinity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711285551.7A CN107827323A (en) | 2017-12-07 | 2017-12-07 | A kind of processing unit of the high ammonia nitrogen organic wastewater of high salinity |
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| Publication Number | Publication Date |
|---|---|
| CN107827323A true CN107827323A (en) | 2018-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711285551.7A Pending CN107827323A (en) | 2017-12-07 | 2017-12-07 | A kind of processing unit of the high ammonia nitrogen organic wastewater of high salinity |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885569A (en) * | 2010-08-06 | 2010-11-17 | 中环（中国）工程有限公司 | Process for treating high-salinity organic wastewater |
| CN101885567A (en) * | 2010-08-06 | 2010-11-17 | 中环（中国）工程有限公司 | Combined equipment for treating high-salinity organic wastewater |
| CN105152470A (en) * | 2015-08-24 | 2015-12-16 | 长沙欣皙原环保科技有限责任公司 | Equipment and process for treating high-concentration ammonia-nitrogen wastewater |
| CA2770709C (en) * | 2009-08-11 | 2017-09-05 | Kinder Morgan Operating L.P."C" | Systems and methods of treating high nitrogen content waste water |
-
2017
- 2017-12-07 CN CN201711285551.7A patent/CN107827323A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2770709C (en) * | 2009-08-11 | 2017-09-05 | Kinder Morgan Operating L.P."C" | Systems and methods of treating high nitrogen content waste water |
| CN101885569A (en) * | 2010-08-06 | 2010-11-17 | 中环（中国）工程有限公司 | Process for treating high-salinity organic wastewater |
| CN101885567A (en) * | 2010-08-06 | 2010-11-17 | 中环（中国）工程有限公司 | Combined equipment for treating high-salinity organic wastewater |
| CN105152470A (en) * | 2015-08-24 | 2015-12-16 | 长沙欣皙原环保科技有限责任公司 | Equipment and process for treating high-concentration ammonia-nitrogen wastewater |
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