CN109970164A - A kind of high ammonia-nitrogen wastewater treatment process for preventing reaction from overheating - Google Patents
A kind of high ammonia-nitrogen wastewater treatment process for preventing reaction from overheating Download PDFInfo
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- CN109970164A CN109970164A CN201910342833.9A CN201910342833A CN109970164A CN 109970164 A CN109970164 A CN 109970164A CN 201910342833 A CN201910342833 A CN 201910342833A CN 109970164 A CN109970164 A CN 109970164A
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- circulation fluid
- concentrated acid
- membrane contactor
- ammonia
- high concentrated
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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
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
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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)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses the high ammonia-nitrogen wastewater treatment process that one kind can prevent reaction from overheating, comprising the following steps: (1) temperature high ammonia-nitrogen wastewater is sent into membrane contactor, and control high ammonia-nitrogen wastewater is 34~36 DEG C；(2) the high concentrated acid circulation fluid extracted from sour circulating storage tank is divided into two parts by acid circulating pump, and a part of high concentrated acid circulation fluid enters membrane contactor, and another part high concentrated acid circulation fluid enters in heat exchanger；(3) in membrane contactor, high concentrated acid circulation fluid reacts with ammonia nitrogen, and in heat exchanger, high concentrated acid circulation fluid exchanges heat；(4) the high concentrated acid circulation fluid after membrane contactor and the high concentrated acid circulation fluid after heat exchange return in sour circulating storage tank, enter next circulation into the high concentrated acid circulation fluid in sour circulating storage tank；(5) it is discharged after membrane contactor treated wastewater to reach standard.The treatment process not only can guarantee the ammonia removal efficiency of membrane contactor, but also can prevent reaction from overheating and membrane contactor is caused to damage.
Description
Technical field
The present invention relates to technical field of waste water processing, and in particular to the high ammonia-nitrogen wastewater processing that one kind can prevent reaction from overheating
Technique.
Background technique
Industrial wastewater in industrial production contains a large amount of ammonia nitrogen, and ammonia nitrogen be easy to cause water pollution and atmosphere pollution, because
This, needs to handle the ammonia nitrogen in industrial wastewater.In the prior art, the processing method of ammonia nitrogen mainly uses biological deamination
Method, film deamination method, chemical precipitation method etc..Biological deamination method is difficult high-volume and is applied since cost is excessively high, chemical precipitation
Method can generate secondary pollution problems again, therefore, be relatively applicable in using film deamination method.
Existing film deamination method is general to be absorbed using the absorption acid of extremely low concentration when handling high ammonia-nitrogen wastewater, with
Reaction heat is reduced, thermal damage's membrane contactor was prevented.But film contact can be reduced by using the absorption acid of extremely low concentration to carry out absorption
The ammonia removal efficiency of device increases the cost of investment of equipment to will increase the quantity of membrane contactor.
Summary of the invention
In order to solve the above technical problems, the purpose of the present invention is to provide the high ammonia-nitrogen wastewaters that one kind can prevent reaction from overheating
Treatment process, the treatment process can either guarantee the ammonia removal efficiency of membrane contactor, and can prevent reaction from overheating and film is caused to connect
Tentaculum damage.
To realize above-mentioned technical purpose and the technique effect, the invention is realized by the following technical scheme: Yi Zhongke
The high ammonia-nitrogen wastewater treatment process for preventing reaction from overheating, the equipment used needed for the technique include membrane contactor, sour circulating storage tank,
Acid circulating pump and heat exchanger, the outlet that the sour circulation fluid entrance of the membrane contactor passes through acid circulating pump and the sour circulating storage tank
Connection, the entrance of sour circulating storage tank are exported with the sour circulation fluid of membrane contactor again and are connected, the acid circulating pump also with a heat exchanger
Connection, heat exchanger are connect with sour circulating storage tank again；
The high ammonia-nitrogen wastewater treatment process the following steps are included:
(1) high ammonia-nitrogen wastewater is sent into membrane contactor through the waterwater entrance of membrane contactor, and controls the temperature of high ammonia-nitrogen wastewater
Degree is 34~36 DEG C；
(2) high concentrated acid circulation fluid, acid circulating pump pumping high-concentration from sour circulating storage tank are stored in sour circulating storage tank
Sour circulation fluid, and the high concentrated acid circulation fluid of extraction is divided into two parts, a part of high concentrated acid circulation fluid passes through membrane contactor
Sour circulation fluid entrance enter in membrane contactor, another part high concentrated acid circulation fluid enters in heat exchanger；
(3) in membrane contactor, high concentrated acid circulation fluid absorb high ammonia-nitrogen wastewater in ammonia nitrogen, high concentrated acid circulation fluid with
Ammonia nitrogen reacts, and in heat exchanger, high concentrated acid circulation fluid is exchanged heat by heat exchanger；
(4) the high concentrated acid circulation fluid after membrane contactor enters in sour circulating storage tank, the high concentration after heat exchange
Sour circulation fluid also returns in sour circulating storage tank, and the high concentrated acid circulation fluid entered in sour circulating storage tank enters next circulation；
(5) it is discharged by membrane contactor treated waste water through the wastewater outlet of membrane contactor.
Further, by the heat exchange of heat exchanger, the temperature control of high concentrated acid circulation fluid is 34~36 DEG C.
Further, the high concentrated acid circulation fluid is the concentrated sulfuric acid solution that concentration is 98%.
Further, into the high concentrated acid circulating fluid flow rate of heat exchanger and the high concentrated acid circulation fluid for entering membrane contactor
The ratio between flow is 1:2.
Further, the reaction temperature of high concentrated acid circulation fluid and ammonia nitrogen is 40 DEG C.
Further, the wastewater effluent temperature after membrane contactor is 40 DEG C.
The beneficial effects of the present invention are: the present invention is handled high ammonia-nitrogen wastewater using high concentrated acid circulation fluid, to ammonia
The absorbing reaction of nitrogen is thorough, and treatment effeciency is high, and treatment effect is more satisfactory, does not need to reduce place using more membrane contactor
Manage cost；Treatment process of the invention spends the temperature control of high ammonia-nitrogen wastewater 34 to 36 before handling high ammonia-nitrogen wastewater,
It is exchanged heat by high concentrated acid circulation fluid of the heat exchanger to recycling, the temperature of high concentrated acid circulation fluid is controlled 34
To 36 degree, i.e., is controlled, guaranteed highly concentrated in membrane contactor by the temperature to both high ammonia-nitrogen wastewater and high concentrated acid circulation fluid
The temperature when ammonia nitrogen spent in sour circulation fluid and high ammonia-nitrogen wastewater carries out absorbing reaction can control at 40 degree, so as to protect
While the effect of the preferable removal ammonia nitrogen of card, and it can be avoided and be damaged in membrane contactor since reaction temperature is excessively high；
High concentrated acid circulating fluid flow rate into heat exchanger and the ratio between the high concentrated acid circulating fluid flow rate into membrane contactor are designed as 1:
2, it is ensured that the balance of heat, and then can control loop is reacted always high concentrated acid circulation fluid temperature.
Detailed description of the invention
Fig. 1 is the flow diagram of high ammonia-nitrogen wastewater treatment process of the present invention.
Specific embodiment
A specific embodiment of the invention is described in detail with reference to the accompanying drawing, so that advantages and features of the invention
It can be easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
As shown in Figure 1, the high ammonia-nitrogen wastewater processing work that one kind that an embodiment of the present invention provides can prevent reaction from overheating
Skill, needed for the equipment that uses include membrane contactor 1, sour circulating storage tank 2, acid circulating pump 3 and heat exchanger 4, the membrane contactor 1
Sour circulation fluid entrance connect by acid circulating pump 3 with the outlet of the sour circulating storage tank 2, the entrance of sour circulating storage tank 2 but with
The sour circulation fluid of membrane contactor 1 exports connection, and the acid circulating pump 3 is also connect with a heat exchanger 4, and heat exchanger 4 is recycled with acid again
Storage tank 2 connects.
As shown in Figure 1, the high ammonia-nitrogen wastewater treatment process the following steps are included:
(1) high ammonia-nitrogen wastewater is sent into membrane contactor 1 through the waterwater entrance of membrane contactor 1, and controls high ammonia-nitrogen wastewater
Temperature is 34~36 DEG C；
(2) high concentrated acid circulation fluid is stored in sour circulating storage tank 2, in the present embodiment, which is
The concentrated sulfuric acid solution that concentration is 98%, opens acid circulating pump 3, and acid circulating pump 3 extracts the circulation of the high concentrated acid in sour circulating tank 2
Liquid, and the high concentrated acid circulation fluid of extraction is divided into two parts, and pump out respectively, a part of high concentrated acid circulation fluid is connect by film
The sour circulation fluid entrance of tentaculum 1 enters in membrane contactor 1, and another part high concentrated acid circulation fluid enters in heat exchanger 4, into changing
The ratio between the high concentrated acid circulating fluid flow rate of hot device 4 and the high concentrated acid circulating fluid flow rate for entering membrane contactor 1 are 1:2；
(3) in membrane contactor 1, high concentrated acid circulation fluid absorbs the ammonia nitrogen in high ammonia-nitrogen wastewater, high concentrated acid circulation fluid
It reacts with ammonia nitrogen, reaction temperature control is 40 DEG C, and in heat exchanger, high concentrated acid circulation fluid is changed by heat exchanger 4
Heat, by heat exchange, the temperature control of high concentrated acid circulation fluid is 34~36 DEG C；
(4) the high concentrated acid circulation fluid by membrane contactor 1 and after generating reaction passes through the sour circulation fluid of membrane contactor 1
Outlet enters in sour circulating storage tank 2, and the high concentrated acid circulation fluid after heat exchange also returns in sour circulating storage tank 2, enters acid
High concentrated acid circulation fluid in circulating storage tank 2 enters next circulation, with the heat exchange and absorbing reaction process recycled；
(5) by treated the waste water of membrane contactor 1, after the ammonia nitrogen concentration contained is up to standard, the waste water through membrane contactor 1
Outlet discharge, the control of wastewater effluent temperature are 40 DEG C.
The present invention is handled high ammonia-nitrogen wastewater using high concentrated acid circulation fluid, thorough to the absorbing reaction of ammonia nitrogen, place
Manage high-efficient, treatment effect is more satisfactory, does not need to reduce processing cost using more membrane contactor.
Treatment process of the invention controls the temperature of high ammonia-nitrogen wastewater 34 to 36 before handling high ammonia-nitrogen wastewater
Degree, the high concentrated acid circulation fluid being recycled by 4 Duis of heat exchanger exchange heat, and the temperature of high concentrated acid circulation fluid is controlled
In 34 to 36 degree, i.e., is controlled, guaranteed in membrane contactor 1 by the temperature to both high ammonia-nitrogen wastewater and high concentrated acid circulation fluid
Temperature when ammonia nitrogen in high concentrated acid circulation fluid and high ammonia-nitrogen wastewater carries out absorbing reaction can control at 40 degree, so as to
While guaranteeing the effect of preferable removal ammonia nitrogen, but can be avoided in membrane contactor 1 due to reaction temperature is excessively high and by
Damage.
Into heat exchanger 4 high concentrated acid circulating fluid flow rate and enter membrane contactor 1 high concentrated acid circulating fluid flow rate it
Than being designed as 1:2, it is ensured that the balance of heat, and then can control loop is reacted always high concentrated acid circulation fluid
Temperature.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (6)
1. the high ammonia-nitrogen wastewater treatment process that one kind can prevent reaction from overheating, which is characterized in that
The equipment used needed for the technique includes membrane contactor, sour circulating storage tank, acid circulating pump and heat exchanger, the membrane contactor
Sour circulation fluid entrance connect by acid circulating pump with the outlet of the sour circulating storage tank, the entrance of sour circulating storage tank and connect with film
The sour circulation fluid of tentaculum exports connection, and the acid circulating pump is also connect with a heat exchanger, and heat exchanger is connect with sour circulating storage tank again；
The high ammonia-nitrogen wastewater treatment process the following steps are included:
(1) high ammonia-nitrogen wastewater is sent into membrane contactor through the waterwater entrance of membrane contactor, and the temperature for controlling high ammonia-nitrogen wastewater is
34~36 DEG C；
(2) high concentrated acid circulation fluid is stored in sour circulating storage tank, acid circulating pump pumping high-concentration acid from sour circulating storage tank follows
Ring liquid, and the high concentrated acid circulation fluid of extraction is divided into two parts, the acid that a part of high concentrated acid circulation fluid passes through membrane contactor
Circulation fluid entrance enters in membrane contactor, and another part high concentrated acid circulation fluid enters in heat exchanger；
(3) in membrane contactor, high concentrated acid circulation fluid absorbs the ammonia nitrogen in high ammonia-nitrogen wastewater, high concentrated acid circulation fluid and ammonia nitrogen
It reacts, in heat exchanger, high concentrated acid circulation fluid is exchanged heat by heat exchanger；
(4) the high concentrated acid circulation fluid after membrane contactor enters in sour circulating storage tank, and the high concentrated acid after heat exchange follows
Ring liquid also returns in sour circulating storage tank, and the high concentrated acid circulation fluid entered in sour circulating storage tank enters next circulation；
(5) it is discharged by membrane contactor treated waste water through the wastewater outlet of membrane contactor.
2. the high ammonia-nitrogen wastewater treatment process that one kind according to claim 1 can prevent reaction from overheating, which is characterized in that warp
The heat exchange of heat exchanger is crossed, the temperature control of high concentrated acid circulation fluid is 34~36 DEG C.
3. the high ammonia-nitrogen wastewater treatment process that one kind according to claim 1 can prevent reaction from overheating, which is characterized in that institute
Stating high concentrated acid circulation fluid is the concentrated sulfuric acid solution that concentration is 98%.
4. the high ammonia-nitrogen wastewater treatment process that one kind according to claim 1 can prevent reaction from overheating, which is characterized in that into
Enter the high concentrated acid circulating fluid flow rate of heat exchanger and enters the ratio between the high concentrated acid circulating fluid flow rate of membrane contactor for 1:2.
5. the high ammonia-nitrogen wastewater treatment process that one kind according to claim 1 can prevent reaction from overheating, which is characterized in that high
The reaction temperature of concentration acid circulation fluid and ammonia nitrogen is 40 DEG C.
6. the high ammonia-nitrogen wastewater treatment process that one kind according to claim 1 can prevent reaction from overheating, which is characterized in that warp
Wastewater effluent temperature after crossing membrane contactor is 40 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910342833.9A CN109970164A (en) | 2019-04-26 | 2019-04-26 | A kind of high ammonia-nitrogen wastewater treatment process for preventing reaction from overheating |
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| CN201910342833.9A CN109970164A (en) | 2019-04-26 | 2019-04-26 | A kind of high ammonia-nitrogen wastewater treatment process for preventing reaction from overheating |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4220601A (en) * | 1977-05-24 | 1980-09-02 | Hoechst Aktiengesellschaft | Process for the continuous manufacture of 3-nitro-4-acetylamino-toluene and corresponding apparatus |
| CN105366754A (en) * | 2015-11-13 | 2016-03-02 | 巨化集团技术中心 | Ammonia-nitrogen wastewater treatment device and method |
| CN105776396A (en) * | 2016-04-28 | 2016-07-20 | 苏州艾吉克膜科技有限公司 | Deamination system and method based on degasifying film |
| CN205550065U (en) * | 2015-12-03 | 2016-09-07 | 扬州宏远电子有限公司 | Sulphuric acid diluting device |
| US20160347630A1 (en) * | 2015-06-01 | 2016-12-01 | The United States Of America, As Represented By The Secretary Of Agriculture | Systems and methods for recovering ammonium and phosphorus from liquid effluents |
| CN106241928A (en) * | 2016-08-15 | 2016-12-21 | 陕西华源矿业有限责任公司 | A kind of high ammonia-nitrogen wastewater processes technique and system |
| CN206045859U (en) * | 2016-08-29 | 2017-03-29 | 嘉兴市环科化工有限公司 | Concentrated sulphuric acid prepares the device of dilute sulfuric acid |
| EP2867163B1 (en) * | 2012-06-28 | 2019-02-27 | Standardgraphene Co., Ltd. | Method and apparatus for manufacturing graphite oxide |
-
2019
- 2019-04-26 CN CN201910342833.9A patent/CN109970164A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4220601A (en) * | 1977-05-24 | 1980-09-02 | Hoechst Aktiengesellschaft | Process for the continuous manufacture of 3-nitro-4-acetylamino-toluene and corresponding apparatus |
| EP2867163B1 (en) * | 2012-06-28 | 2019-02-27 | Standardgraphene Co., Ltd. | Method and apparatus for manufacturing graphite oxide |
| US20160347630A1 (en) * | 2015-06-01 | 2016-12-01 | The United States Of America, As Represented By The Secretary Of Agriculture | Systems and methods for recovering ammonium and phosphorus from liquid effluents |
| CN105366754A (en) * | 2015-11-13 | 2016-03-02 | 巨化集团技术中心 | Ammonia-nitrogen wastewater treatment device and method |
| CN205550065U (en) * | 2015-12-03 | 2016-09-07 | 扬州宏远电子有限公司 | Sulphuric acid diluting device |
| CN105776396A (en) * | 2016-04-28 | 2016-07-20 | 苏州艾吉克膜科技有限公司 | Deamination system and method based on degasifying film |
| CN106241928A (en) * | 2016-08-15 | 2016-12-21 | 陕西华源矿业有限责任公司 | A kind of high ammonia-nitrogen wastewater processes technique and system |
| CN206045859U (en) * | 2016-08-29 | 2017-03-29 | 嘉兴市环科化工有限公司 | Concentrated sulphuric acid prepares the device of dilute sulfuric acid |
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Application publication date: 20190705 |
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