CN114477538A - Comprehensive utilization and treatment method for ammonia nitrogen wastewater - Google Patents
Comprehensive utilization and treatment method for ammonia nitrogen wastewater Download PDFInfo
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- CN114477538A CN114477538A CN202210084736.6A CN202210084736A CN114477538A CN 114477538 A CN114477538 A CN 114477538A CN 202210084736 A CN202210084736 A CN 202210084736A CN 114477538 A CN114477538 A CN 114477538A
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- concentrated solution
- ammonia nitrogen
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- nitrogen wastewater
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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
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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
- C02F1/44—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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- 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)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to the field of wastewater treatment, in particular to a comprehensive utilization treatment method for ammonia nitrogen wastewater, which comprises the following steps: s1, enabling the wastewater to flow into a hypergravity separation end to carry out two-stage or more hypergravity separation to obtain a first concentrated solution and a first clear solution; s2, enabling the first concentrated solution to flow into a first comprehensive treatment end to perform first comprehensive treatment to obtain a second concentrated solution, and enabling the first clear solution to flow into a second comprehensive treatment end to perform second comprehensive treatment to obtain a second clear solution; s3, detecting the water quality of the second clear liquid, and classifying to use or discharge according to the water quality of the second clear liquid; and S4, the second concentrated solution is used for recovering ammonia water, or further reacted to recover ammonium salt, or used for processing at a production end. Solves the problem that the waste water containing ammonia and nitrogen produced in the prior industrial production is discharged without being well treated, thereby causing resource waste.
Description
Technical Field
The invention relates to the field of wastewater treatment, in particular to a comprehensive utilization treatment method for ammonia nitrogen wastewater.
Background
The waste water is a general term of water and runoff rainwater drained in the process of activities of residents. The method comprises the steps of domestic sewage, industrial wastewater and other useless water such as primary rain water flowing into a drainage pipe canal, and generally refers to water which can not be recycled after being treated by a certain technology or can not reach a certain standard after being purified by primary pollution.
In industrial production, some chemical raw materials containing ammonia and nitrogen are often used, and the chemical raw materials containing ammonia and nitrogen generate various industrial products containing amino and nitrogen groups in the production and processing processes, meanwhile, various intermediates and residues containing amino and nitrogen groups can be mixed in water bodies or liquid substances used for processing to form ammonia nitrogen wastewater and ammonia nitrogen waste liquid, and the wastewater and waste liquid containing ammonia and nitrogen not only contain a large amount of ammonia nitrogen substances and other recyclable substances, but also have complex components and toxicity, and can be discharged without being processed, so that the wastewater, air and soil are seriously polluted, the ecological environment is damaged, and waste of waste resources can be caused.
At present, the mainstream technology for treating ammonia nitrogen wastewater at home and abroad is an activated sludge biochemical treatment method, a huge biochemical reaction system needs to be constructed, a reasonable carbon-nitrogen ratio is allocated, ammonia nitrogen is finally reduced into nitrogen through ammoniation, nitrification and denitrification reactions, ammonia nitrogen is removed, and the smooth running of the biochemical reaction can be ensured only by matching a large amount of organic carbon sources in the process. The advantages are mature technology, but the disadvantages are obvious: 1) is not suitable for treating ammonia nitrogen waste liquid and waste water with high concentration and extremely high concentration. 2) The system is complex, the structure is huge, and the occupied area is huge. 3) The efficiency is low, the ammonia nitrogen can not be removed deeply, and the method becomes a pushing hand for the disaster of eutrophic water bodies in rivers, lakes and seas. 4) The ammonia nitrogen can not be recycled.
Disclosure of Invention
The invention aims to provide a comprehensive utilization and treatment method of ammonia nitrogen wastewater, which solves the problems that various ammonia nitrogen wastewater and waste liquid are mainly treated by an activated sludge biochemical treatment method and ammonia nitrogen cannot be recycled.
In order to solve the technical problems, the invention adopts the following technical scheme:
a comprehensive utilization treatment method of ammonia nitrogen wastewater comprises the following steps: s1, removing impurities from the ammonia nitrogen wastewater, performing conditioning pretreatment, pumping the ammonia nitrogen wastewater into a hypergravity separation end at normal temperature and normal pressure, and performing hypergravity separation for more than two stages to obtain a first concentrated solution and a first clear solution. And S2, flowing the first concentrated solution into the first comprehensive treatment end to perform first comprehensive treatment to obtain a second concentrated solution, and flowing the first clear solution into the second comprehensive treatment end to perform second comprehensive treatment to obtain a second clear solution. And S3, detecting the water quality of the second clear liquid, and classifying to use or discharge according to the water quality of the second clear liquid. And S4, the second concentrated solution is used for recovering ammonia water, or further reacted to recover ammonium salt, or used for processing at the production end.
The further technical scheme is that the first comprehensive treatment comprises a membrane concentration device, a dosing device and a reflux pump. The first concentrated solution is directly concentrated and recovered with ammonium substances through membrane filtration of a membrane concentration device and is stored in a collection tank. And adding an additive or a catalyst into the first concentrated solution after passing through the membrane concentration device through a dosing device to obtain a second concentrated solution, refluxing the second concentrated solution to the hypergravity separation end in the step S1 through a reflux pump, and performing hypergravity separation in any stage.
The further technical proposal is that the second comprehensive treatment comprises an advanced oxidation reaction device and a membrane separation device which are sequentially carried out.
Compared with the prior art, the invention has the beneficial effects that: through carrying out the reaction separation under the hypergravity separation and the hypergravity field more than the two-stage with waste water, can make the abundant separation of waste water become first dense solution and first clear solution, just so contained most ammonia and nitrogen in the first dense solution, the follow-up treatment that also can be convenient for of first clear solution purifies for discharge and use. Through setting up first comprehensive treatment end, can further handle first dope, the second dope that obtains like this can be used for retrieving the aqueous ammonia, or further reaction retrieves ammonium salt, or is used for the production end to process. Solves the problem that the waste water containing ammonia and nitrogen produced in the prior industrial production is discharged without being well treated, thereby causing resource waste.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example (b):
a comprehensive utilization treatment method of ammonia nitrogen wastewater comprises the following steps: s1, removing impurities from the ammonia nitrogen wastewater, performing conditioning pretreatment, pumping the ammonia nitrogen wastewater into a hypergravity separation end at normal temperature and normal pressure, and performing hypergravity separation for more than two stages to obtain a first concentrated solution and a first clear solution. And S2, flowing the first concentrated solution into the first comprehensive treatment end to perform first comprehensive treatment to obtain a second concentrated solution, and flowing the first clear solution into the second comprehensive treatment end to perform second comprehensive treatment to obtain a second clear solution. And S3, detecting the water quality of the second clear liquid, and classifying to use or discharge according to the water quality of the second clear liquid. And S4, the second concentrated solution is used for recovering ammonia water, or further reacted to recover ammonium salt, or used for processing at the production end. Through carrying out the hypergravity separation more than the two-stage with waste water, can make the abundant separation of waste water become first dense liquid and first clear solution, just so contained most ammonia and nitrogen in the first dense liquid, first clear solution also can be convenient for follow-up processing and purify for discharge and use. Through setting up first comprehensive treatment end, can further handle first dope, the second dope that obtains like this can be used for retrieving the aqueous ammonia, or further reaction retrieves ammonium salt, or is used for the production end to process. Solves the problem that the waste water containing ammonia and nitrogen produced in the prior industrial production is discharged without being well treated, thereby causing resource waste. The technical method overcomes the defects of the ammonia nitrogen wastewater and the waste liquid treated by the activated sludge biochemical method, and simultaneously, the ammonia nitrogen wastewater and the waste liquid are recycled as resources to avoid resource waste. The hypergravity reaction has the advantages of high mass transfer and high heat transfer, can be quickly reacted and separated, and the whole hypergravity reaction process is carried out at normal temperature and normal pressure.
When the third clear liquid is classified for use or discharged according to the water quality conditions, the following conditions can be adopted: a. the water quality meets or is superior to the water quality of the front-end production water of the enterprise, and the water is completely recycled for production; b. the purified water is used for cooling circulating water of enterprises; flushing toilet, vehicle flushing, urban greening, road cleaning, fire fighting and the like.
The first comprehensive treatment comprises a membrane concentration device, a dosing device and a reflux pump. The first concentrated solution is directly concentrated and recovered with ammonium substances through membrane filtration of a membrane concentration device and is stored in a collection tank. And adding an additive or a catalyst into the first concentrated solution after passing through the membrane concentration device through a dosing device to obtain a second concentrated solution, refluxing the second concentrated solution to the hypergravity separation end in the step S1 through a reflux pump, and performing hypergravity separation in any stage. Through membrane concentration, can further promote the concentration of first dope, go on like this, for heating concentration, have the advantage that the energy consumption is low, the room temperature is gone on moreover.
The second integrated treatment comprises an advanced oxidation reaction device and a membrane separation device which are sequentially carried out. The first clear liquid can be further processed through advanced oxidation reaction and separation of the mold components to obtain a second clear liquid which can be directly discharged or drunk.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure and claims of this application. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (3)
1. The comprehensive utilization and treatment method of the ammonia nitrogen wastewater is characterized by comprising the following steps:
s1, removing impurities from the ammonia nitrogen wastewater, performing conditioning pretreatment, pumping the ammonia nitrogen wastewater into a hypergravity separation end at normal temperature and normal pressure, and performing hypergravity separation for more than two stages to obtain a first concentrated solution and a first clear solution;
s2, enabling the first concentrated solution to flow into a first comprehensive treatment end to perform first comprehensive treatment to obtain a second concentrated solution, and enabling the first clear solution to flow into a second comprehensive treatment end to perform second comprehensive treatment to obtain a second clear solution;
s3, detecting the water quality of the second clear liquid, and classifying to use or discharge according to the water quality of the second clear liquid;
and S4, the second concentrated solution is used for recovering ammonia water, or further reacted to recover ammonium salt, or used for processing at the production end.
2. The comprehensive utilization and treatment method for ammonia nitrogen wastewater according to claim 1, which is characterized in that: the first comprehensive treatment comprises a membrane concentration device, a dosing device and a reflux pump, and the first concentrated solution is directly concentrated and recovered with ammonium substances through membrane filtration of the membrane concentration device and is stored in a collection tank; and adding an additive or a catalyst into the first concentrated solution after passing through the membrane concentration device through a dosing device to obtain a second concentrated solution, refluxing the second concentrated solution to the hypergravity separation end in the step S1 through a reflux pump, and performing hypergravity separation in any stage.
3. The comprehensive utilization and treatment method for ammonia nitrogen wastewater according to claim 1, which is characterized in that: the second comprehensive treatment comprises an advanced oxidation reaction device and a membrane separation device which are sequentially carried out.
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| CN202210084736.6A CN114477538A (en) | 2022-01-25 | 2022-01-25 | Comprehensive utilization and treatment method for ammonia nitrogen wastewater |
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| CN202210084736.6A CN114477538A (en) | 2022-01-25 | 2022-01-25 | Comprehensive utilization and treatment method for ammonia nitrogen wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114920399A (en) * | 2022-06-07 | 2022-08-19 | 安尔达技术(北京)有限责任公司 | Comprehensive utilization treatment method for high-salinity wastewater |
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- 2022-01-25 CN CN202210084736.6A patent/CN114477538A/en active Pending
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| CN205740560U (en) * | 2016-05-04 | 2016-11-30 | 锋霈环境科技股份有限公司 | Hypergravity ammonia nitrogen waste water processing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114920399A (en) * | 2022-06-07 | 2022-08-19 | 安尔达技术(北京)有限责任公司 | Comprehensive utilization treatment method for high-salinity wastewater |
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