CN114604998A - System and process for reducing ammonia nitrogen in clear waste liquid - Google Patents
System and process for reducing ammonia nitrogen in clear waste liquid Download PDFInfo
- Publication number
- CN114604998A CN114604998A CN202210234592.8A CN202210234592A CN114604998A CN 114604998 A CN114604998 A CN 114604998A CN 202210234592 A CN202210234592 A CN 202210234592A CN 114604998 A CN114604998 A CN 114604998A
- Authority
- CN
- China
- Prior art keywords
- waste liquid
- ammonia nitrogen
- barrel
- clear
- clear waste
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/586—Treatment of water, waste water, or sewage by removing specified dissolved compounds by removing ammoniacal nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- 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
-
- 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
- C02F2209/14—NH3-N
Landscapes
- 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)
- Removal Of Specific Substances (AREA)
Abstract
The invention belongs to the technical field of waste liquid treatment, and particularly relates to a clear waste liquid ammonia nitrogen reduction system and a clear waste liquid ammonia nitrogen reduction process, which comprises a clarifying barrel, a waste liquid barrel, a first buffer barrel, a reaction barrel and a second buffer barrel which are sequentially connected along the flow direction of the clear waste liquid; the clear waste liquid ammonia nitrogen system that falls still includes the charge device who is connected with the waste liquid bucket. The invention provides the system and the process for reducing ammonia nitrogen of the clear waste liquid based on the characteristics of large discharge capacity, high salt content, low ammonia nitrogen concentration and the like of the clear waste liquid, the ammonia nitrogen reduction treatment can be rapidly and efficiently carried out on the clear waste liquid with large flow and high salt content, the ammonia nitrogen value of the treated clear waste liquid reaches below 10mg, and the system and the process have good social and environmental benefits. The system is provided with the first buffer barrel and the DCS, so that the automatic control of the clear waste liquid treatment process can be realized, the ammonia nitrogen treatment efficiency is high, and the system has the capability of coping with sudden situations of the system.
Description
Technical Field
The invention belongs to the technical field of waste liquid treatment, and particularly relates to a system and a process for removing ammonia nitrogen from waste liquid.
Background
Producing sodium carbonate by ammonia-soda process, about 10m for each 1 ton of sodium carbonate3And (3) distilling the waste liquid, and neutralizing the distilled waste liquid to obtain a clear waste liquid, wherein the ammonia nitrogen content in the clear waste liquid is generally 20-40 mg/L. Ammonia nitrogen exists in wastewater, and the environment is polluted by direct discharge. The ammonia nitrogen index is one of the main indexes for controlling the pollutants in the production of the soda ash. In order to strictly control ammonia nitrogen indexes, ammonia-alkali clear waste liquid is subjected to ammonia nitrogen removal treatment, and the ammonia nitrogen value reaches below 10mg/L, so that the ammonia-alkali clear waste liquid can be discharged after reaching the standard.
At present, the ammonia nitrogen treatment method mainly comprises the following steps: biological, physical, chemical methods. The ammonia nitrogen wastewater discharged by the ammonia-soda process soda ash production has the characteristics of large discharge capacity, high salt content, difficult treatment and the like, the wastewater mainly contains sodium chloride, calcium chloride and the like besides ammonia nitrogen, high salt can inhibit nitration reaction and is not suitable for biological denitrification, and high-salt and low-concentration ammonia nitrogen wastewater is also not suitable for physical and chemical methods such as a chemical precipitation method, an ion exchange method, a blow-off method, a liquid membrane method, an electrochemistry and the like. Clear waste liquid containing ammonia nitrogen produced by most ammonia-alkali factories in China is discharged to the sea after being treated, the requirement on ammonia nitrogen control technology of the clear waste liquid is not high, and ammonia nitrogen indexes of most ammonia-alkali enterprises are controlled to be 40mg/L and are directly discharged after being diluted.
The ammonia nitrogen control of the prior clear waste liquid is mainly the operation of a waste liquid ammonia distillation process which is strictly controlled, ammonia is recycled as much as possible, and the ammonia nitrogen value of the clear waste liquid after ammonia distillation and neutralization still can hardly reach below 10 mg/L. The clear waste liquid produced by producing the soda ash by the ammonia-soda process has large discharge amount, high salt content, low ammonia nitrogen concentration and large ammonia nitrogen treatment difficulty. Therefore, the research on the ammonia nitrogen reduction treatment process technology needs to be carried out on the waste water with the special quality of clear waste liquid.
Disclosure of Invention
To the big problem of the current clear waste liquid treatment degree of difficulty, this application provides a clear waste liquid ammonia nitrogen reduction system and technology, can discharge under the prerequisite up to standard at clear waste liquid, realizes the high-efficient operation of system, improves the treatment effeciency of clear waste liquid.
Based on the above purpose, the technical scheme adopted by the invention is as follows:
in a first aspect, the invention provides a clear waste liquid ammonia nitrogen reducing system, which comprises a clarifying barrel, a waste liquid barrel, a first buffer barrel, a reaction barrel and a second buffer barrel which are connected in sequence along the flow direction of the clear waste liquid; the clear waste liquid ammonia nitrogen system that falls still includes the charge device who is connected with the waste liquid bucket.
The ammonia nitrogen value of the clear waste liquid in the waste liquid barrel is reduced by adding the medicine into the waste liquid barrel; be equipped with first buffer tank in the system, through will adding the clear waste liquid of medicine back from the waste liquid bucket pump into first buffer tank, make medicine and clear waste liquid intensive mixing in first buffer tank, after the preliminary reaction, the effect of pump income reaction tank full play medicine again, further reduce the ammonia nitrogen value in the clear waste liquid, make it fall to below 10mg/L, reach emission standard, discharge after the overflow goes into the second buffer tank.
Further, an ammonia nitrogen monitor is arranged in the clarifying barrel, and an ammonia nitrogen analyzer is arranged in the second buffer barrel; the clear waste liquid ammonia nitrogen system that falls still includes the DCS system, the DCS system is connected with ammonia nitrogen monitor, ammonia nitrogen analysis appearance, charge device.
Furthermore, the DCS system collects data of the ammonia nitrogen monitor and the ammonia nitrogen analyzer, controls the dosing amount of the dosing device according to the collected data, and adjusts the technological process in real time.
The system for reducing ammonia nitrogen in the clear waste liquid is provided with the DCS, the DCS can monitor the ammonia nitrogen value of the clear waste liquid discharged and discharged in the system in real time, automatically control the dosage, adjust the technological process in real time according to the collected data, realize the high-efficiency operation of the system on the premise of standard discharge of the clear waste liquid, and improve the treatment efficiency of the clear waste liquid.
In a second aspect, the invention provides a clear waste liquid ammonia nitrogen reducing process which is carried out based on the clear waste liquid ammonia nitrogen reducing system.
Further, the process for reducing ammonia nitrogen in the clear waste liquid comprises the following steps:
clear waste liquid is collected through the clarification tank, deposits the back and overflows into the waste liquid bucket, adds the medicine through charge device and falls ammonia nitrogen treatment to clear waste liquid in the waste liquid bucket, later with clear waste liquid pump in proper order into first buffer tank, reaction vessel, discharges through second buffer tank after clear waste liquid fully reacts with the medicine, and the ammonia nitrogen value of the clear waste liquid of second buffer tank discharge is less than 10 mg/L.
Further, the medicine is an ammonia nitrogen remover.
Further, the ammonia nitrogen monitor and the ammonia nitrogen analyzer are respectively used for monitoring the ammonia nitrogen value in the clarifying barrel and the ammonia nitrogen value in the second buffer barrel in real time, the DCS system collects the ammonia nitrogen value in the clarifying barrel, and adjusts the real-time adding amount of the ammonia nitrogen remover in the waste liquid barrel to ensure that the ammonia nitrogen value of the clear waste liquid discharged by the second buffer barrel is lower than 10 mg/L; and adjusting the process according to the ammonia nitrogen value of the clear waste liquid in the clarifying barrel.
Further, the method for adjusting the process according to the ammonia nitrogen value of the clear waste liquid in the clarifying barrel comprises the following steps:
when the ammonia nitrogen value of the clear waste liquid in the clarifying barrel is lower than 100mg/L, the clear waste liquid overflows into the waste liquid barrel from the clarifying barrel, and after an ammonia nitrogen remover is added into the waste liquid barrel by a chemical adding device, the clear waste liquid is pumped into a first buffer barrel by the waste liquid barrel; pumping the clear waste liquid of the first buffer barrel into the reaction barrel, overflowing to the second buffer barrel and then discharging.
Further, the capacity of the first buffer bucket is Xm3The flow of the clear waste liquid in the first buffer barrel is controlled to be (X/5) m3/h。
Further, the method for adjusting the process according to the ammonia nitrogen value of the clear waste liquid in the clarifying barrel comprises the following steps:
when clear waste liquid ammonia nitrogen value of depositing tank is higher than 100mg/L, clear waste liquid overflows into waste liquid bucket, after adding ammonia nitrogen remover in to waste liquid bucket through charge device, go into first buffer tank with the clear waste liquid pump that does not reach standard in the waste liquid bucket and store, and pause and go into clear waste liquid to the reaction tank pump by first buffer tank, when clear waste liquid ammonia nitrogen value is less than 100mg/L in the depositing tank, go into the reaction tank with clear waste liquid pump in the waste liquid bucket again, and send the clear waste liquid that does not reach standard in the first buffer tank to the reaction tank according to the proportion and carry out the mixing reaction after, clear waste liquid is again gone into first buffer tank by the waste liquid bucket pump in the depositing tank, the clear waste liquid pump of first buffer tank is into the reaction tank again, discharge behind the overflow to the second buffer tank again.
Further, when the reaction barrel broke down, clear waste liquid was collected through the depositing bucket, was overflowed into the waste liquid bucket after deposiing, added the ammonia nitrogen remover in to the waste liquid bucket through charge device, dropped ammonia nitrogen and was handled clear waste liquid in the waste liquid bucket, gone into first buffer tank with clear waste liquid pump afterwards, discharged behind the second buffer tank of pump income after clear waste liquid fully reacted with the medicine, the ammonia nitrogen value of the clear waste liquid of second buffer tank discharge was less than 10 mg/L.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides the system and the process for reducing ammonia nitrogen of the clear waste liquid based on the characteristics of large discharge capacity, high salt content, low ammonia nitrogen concentration and the like of the clear waste liquid, the ammonia nitrogen reduction treatment can be rapidly and efficiently carried out on the clear waste liquid with large flow and high salt content, the ammonia nitrogen value of the treated clear waste liquid reaches below 10mg, and the system and the process have good social and environmental benefits. The system is provided with the first buffer barrel and the DCS, so that the automatic control of the clear waste liquid treatment process can be realized, the ammonia nitrogen treatment efficiency is high, and the system has the capability of coping with sudden situations of the system.
Drawings
FIG. 1 is a flow chart of the process for reducing ammonia nitrogen in clear waste liquid;
FIG. 2 is a process flow chart when the ammonia nitrogen value of the clear waste liquid is lower than 100 mg/L;
FIG. 3 is a process flow chart when the ammonia nitrogen value of the clear waste liquid is higher than 100 mg/L;
fig. 4 is a process flow diagram when a reaction bucket fails.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific examples. It will be understood by those skilled in the art that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The test methods used in the examples are all conventional methods unless otherwise specified; the materials, reagents and the like used are commercially available unless otherwise specified.
Example 1
The embodiment provides a clear waste liquid ammonia nitrogen system that falls, along clear waste liquid flow direction, including the clarification bucket, waste liquid bucket, first buffer tank, retort and the second buffer tank that connect gradually, clear waste liquid ammonia nitrogen system that falls still includes the charge device who is connected with the waste liquid bucket, is equipped with the ammonia nitrogen remover in the charge device, adds the ammonia nitrogen remover in the clear waste liquid of waste liquid bucket through charge device for reduce the ammonia nitrogen value of clear waste liquid.
Wherein, the waste liquid barrel is connected with the first buffer barrel and the first buffer barrel is connected with the reaction barrel by a pump. Clear waste liquid overflow in the clarification tank goes into the waste liquid bucket, and clear waste liquid in the waste liquid bucket is gone into first buffer tank by the pump, and clear waste liquid in the first buffer tank is gone into the reaction vessel by the pump again, and clear waste liquid overflow in the reaction vessel goes into the second buffer tank. Relative to the second buffer barrel, the first buffer barrel is a large-capacity buffer barrel, and the capacity of the first buffer barrel can be 5000m according to the process requirement3. First buffer tank not only has the effect of the clear waste liquid of temporary storage, and the clear waste liquid of the important pump income in first buffer tank realizes in first buffer tank with the preliminary mixing and the reaction of ammonia nitrogen remover, and it is long when having prolonged the reaction of clear waste liquid with ammonia nitrogen remover in other words, has improved the ammonia nitrogen removal efficiency of clear waste liquid.
The clear waste liquid ammonia nitrogen reducing system is connected with a waste liquid barrel by adopting a dosing device and is used for reducing the ammonia nitrogen value in clear waste liquid in the waste liquid barrel in a reaction manner, a first buffer barrel is arranged, the dosed clear waste liquid is pumped into the first buffer barrel in the waste liquid barrel, a medicament is fully mixed with the clear waste liquid in the first buffer barrel, after preliminary reaction, the medicament is pumped into the reaction barrel to fully play the role of the medicament, the ammonia nitrogen value in the clear waste liquid is further reduced to be lower than 10mg/L, the emission standard is reached, and the clear waste liquid is discharged after overflowing into a second buffer barrel.
In addition, an ammonia nitrogen monitor is arranged in the clarifying barrel, and an ammonia nitrogen analyzer is arranged in the second buffer barrel; the system for reducing ammonia nitrogen in the clear waste liquid also comprises a DCS, and the DCS is connected with an ammonia nitrogen monitor, an ammonia nitrogen analyzer and a dosing device. The DCS system collects data of the ammonia nitrogen monitor and the ammonia nitrogen analyzer, controls the dosing amount of the dosing device according to the collected data, and adjusts the technological process in real time.
If the ammonia nitrogen value in the clear waste liquid flowing into the clarifying barrel is lower than 100mg/L (normal state), the clear waste liquid overflows into the waste liquid barrel from the clarifying barrel, and after the ammonia nitrogen remover is added into the waste liquid barrel by the chemical adding device, the clear waste liquid is pumped into the first buffer barrel through the waste liquid barrel; pumping the clear waste liquid of the first buffer barrel into the reaction barrel, overflowing to the second buffer barrel and then discharging.
If when the ammonia nitrogen value is higher than 100mg/L in the clear waste liquid that flows into in the clarification tank (abnormal state), clear waste liquid overflows and goes into the waste liquid bucket, after adding ammonia nitrogen remover to the waste liquid bucket through charge device, go into first buffer tank with clear waste liquid pump, pause and go into clear waste liquid to the reaction tank pump, when clear waste liquid ammonia nitrogen value of clarification tank is less than 100mg/L, go into the reaction tank with clear waste liquid pump in the waste liquid bucket again, and send the clear waste liquid of not up to standard in the first buffer tank to the reaction tank in proportion and carry out the mixing reaction after, clear waste liquid is again gone into first buffer tank by the waste liquid bucket pump in the clarification tank, the clear waste liquid of first buffer tank is again gone into the reaction tank, discharge after overflowing to the second buffer tank.
If when the unable continuation during operation of reaction barrel trouble, clear waste liquid is collected through the depositing bucket, the back overflow goes into the waste liquid bucket, adds the ammonia nitrogen remover in to the waste liquid bucket through charge device, falls the ammonia nitrogen and handles in the waste liquid bucket clear waste liquid, goes into first buffer tank with clear waste liquid pump afterwards, and the pump is gone into behind the second buffer tank and is discharged after clear waste liquid fully reacts with the medicine, and the ammonia nitrogen value of the clear waste liquid of second buffer tank discharge is less than 10 mg/L.
The system for reducing ammonia nitrogen in the clear waste liquid is provided with the DCS, the DCS can monitor the ammonia nitrogen value of the clear waste liquid discharged and discharged in the system in real time, automatically control the dosage, adjust the process in real time according to the acquired data, and can respond to sudden situations, so that the efficient operation of the system is realized on the premise of ensuring that the discharge of the clear waste liquid reaches the standard, and the treatment efficiency of the clear waste liquid is improved.
Example 2
The embodiment provides a process for reducing ammonia nitrogen in clear waste liquid, which is carried out based on the system for reducing ammonia nitrogen in clear waste liquid in embodiment 1.
The invention discloses a process for reducing ammonia nitrogen in clear waste liquid, which comprises the following steps as shown in figure 1:
clear waste liquid is collected through the clarifying tank, is overflowed into the waste liquid barrel after being precipitated, a dosing device is arranged above the waste liquid barrel, an ammonia nitrogen remover is added into the central pipe of the waste liquid barrel, and the clear waste liquid after the mixed reaction can be sent into 5000m through a clear waste liquid pump3The first buffer barrel or the reaction barrel continues to react. 5000m3The clear waste liquid in the first buffer barrel can be pumped into the reaction barrel or the second buffer barrel, the clear waste liquid in the reaction barrel overflows to the second buffer barrel, and after the clear waste liquid in the second buffer barrel completely reacts, the ammonia nitrogen value reaches below 10mg/L, and the emission is up to the standard.
The clarifying tank is internally provided with a central control online ammonia nitrogen monitor which is used for monitoring the ammonia nitrogen value of the clear waste liquid on line and feeding back the ammonia nitrogen value to the DCS, and the DCS automatically controls the dosage of the dosing device according to the fed-back ammonia nitrogen value, if the online monitor determines that the ammonia nitrogen value of the clear waste liquid in the clarifying tank is 100mg/L and 1000m3Adding 8m of medicament into clear waste liquid with ammonia nitrogen content of 100mg/L3And controlling the dosage of the medicine by combining the flow of the clear waste liquid, such as the flow of the clear waste liquid is 300m3The ammonia nitrogen value is 120mg/L, and the flow of the dosing metering pump is 2.88m3H is used as the reference value. And an environment-friendly ammonia nitrogen online analyzer is arranged at the discharge outlet of the second buffer barrel and used for analyzing whether the ammonia nitrogen value in the clear waste liquid discharged by the second buffer barrel is lower than 10mg/L or not.
The DCS system collects the ammonia nitrogen value in the clarifying barrel, and the process is adjusted according to the ammonia nitrogen value of the clear waste liquid as follows.
When the ammonia nitrogen value of the clear waste liquid in the clarifying tank is lower than 100mg/L (normal state), the process flow is shown in figure 2, the clear waste liquid overflows into the waste liquid tank from the clarifying tank, the ammonia nitrogen remover is added into the waste liquid tank by the chemical adding device, and then the clear waste liquid is pumped into the second tank by the waste liquid tankA buffer barrel (capacity 5000 m)3) (ii) a Pumping the clear waste liquid of the first buffer barrel into the reaction barrel, overflowing to the second buffer barrel and then discharging. The flow of the clear waste liquid in the first buffer barrel is controlled to be 1000m3The first buffer barrel is used as a middle channel for increasing the reaction buffer time of the ammonia nitrogen remover and is provided with 4000m3The storage space ensures the buffer time requirement of more than 4 hours when the full load production is carried out for emergency.
The dosage of the medicine in the process flow is relatively reduced, on one hand, the ammonia nitrogen value in the clear waste liquid is relatively low, on the other hand, the first buffer barrel has the function of prolonging the reaction of the clear waste liquid and the ammonia nitrogen remover, and the clear waste liquid and the ammonia nitrogen remover are further reacted in the reaction barrel, so that the ammonia nitrogen remover added into the system can fully play the function in the whole process, and the adding amount of the ammonia nitrogen remover is relatively reduced.
When the ammonia nitrogen value of the clear waste liquid in the clarifying barrel is higher than 100mg/L (abnormal state), the process flow is shown in figure 3, the clear waste liquid overflows into the waste liquid barrel from the clarifying barrel, the ammonia nitrogen remover is added into the waste liquid barrel by the chemical adding device, and then the clear waste liquid is pumped into a first buffer barrel (with the capacity of 5000 m) through the waste liquid barrel3) Simultaneously stopping the pump of the reaction barrel to ensure that the clear waste liquid and the ammonia nitrogen remover react in the first buffer barrel; meanwhile, clear waste liquid in the waste liquid barrel is pumped into the reaction barrel, and overflows into the second buffer barrel to be discharged after full reaction, and the 5000 th m of clear waste liquid in the second buffer barrel is discharged according to the discharge index condition of the clear waste liquid in the second buffer barrel3Pumping the substandard waste liquid stored in the first buffer barrel into the reaction barrel for replacement, and after the ammonia nitrogen value in the clear waste liquid reaches the standard, sequentially discharging the waste liquid by the first buffer barrel, the reaction barrel and the second buffer barrel.
When the reaction barrel fails and can not be put into use, the process flow is shown in fig. 4, clear waste liquid is collected by a clarifying barrel, is overflowed into the waste liquid barrel after precipitation, ammonia nitrogen remover is added into the waste liquid barrel through a chemical adding device, ammonia nitrogen reduction treatment is carried out on the clear waste liquid in the waste liquid barrel, then the clear waste liquid is pumped into a first buffer barrel, the clear waste liquid is fully reacted with a medicament and then pumped into a second buffer barrel to be discharged, and the ammonia nitrogen value of the clear waste liquid discharged by the second buffer barrel is lower than 10 mg/L.
The invention provides the system and the process for reducing ammonia nitrogen of the clear waste liquid based on the characteristics of large discharge capacity, high salt content, low ammonia nitrogen concentration and the like of the clear waste liquid, the ammonia nitrogen reduction treatment can be rapidly and efficiently carried out on the clear waste liquid with large flow and high salt content, the ammonia nitrogen value of the treated clear waste liquid reaches below 10mg, and the system and the process have good social and environmental benefits. The system is provided with the first buffer barrel and the DCS, so that the automatic control of the clear waste liquid treatment process can be realized, the ammonia nitrogen treatment efficiency is high, and the system has the capability of coping with sudden situations of the system.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A clear waste liquid ammonia nitrogen reducing system is characterized by comprising a clarifying barrel, a waste liquid barrel, a first buffer barrel, a reaction barrel and a second buffer barrel which are connected in sequence along the flow direction of the clear waste liquid; the clear waste liquid ammonia nitrogen system that falls still includes the charge device who is connected with the waste liquid bucket.
2. The clear waste liquid ammonia nitrogen system of claim 1, wherein the clarifying barrel is provided with an ammonia nitrogen monitor, and the second buffer barrel is provided with an ammonia nitrogen analyzer; the clear waste liquid ammonia nitrogen system that falls still includes the DCS system, the DCS system is connected with ammonia nitrogen monitor, ammonia nitrogen analysis appearance, charge device.
3. The system for removing ammonia nitrogen from waste liquid according to claim 2, wherein the DCS collects data of the ammonia nitrogen monitor and the ammonia nitrogen analyzer, controls the dosage of the dosing device according to the collected data, and adjusts the process in real time.
4. A process for reducing ammonia nitrogen in clear waste liquid, which is characterized in that the process is carried out based on the system for reducing ammonia nitrogen in clear waste liquid according to any one of claims 1 to 3.
5. The process for reducing ammonia nitrogen in clear waste liquid according to claim 4, which is characterized by comprising the following steps:
clear waste liquid is collected through the clarification tank, deposits the back and overflows into the waste liquid bucket, adds the medicine through charge device and falls ammonia nitrogen treatment to clear waste liquid in the waste liquid bucket, later with clear waste liquid pump in proper order into first buffer tank, reaction vessel, discharges through second buffer tank after clear waste liquid fully reacts with the medicine, and the ammonia nitrogen value of the clear waste liquid of second buffer tank discharge is less than 10 mg/L.
6. The process for reducing ammonia nitrogen in clear waste liquid according to claim 5, wherein the medicament is an ammonia nitrogen remover.
7. The process for reducing ammonia nitrogen in clear waste liquid according to claim 6, wherein the ammonia nitrogen monitor and the ammonia nitrogen analyzer are respectively used for monitoring the ammonia nitrogen value in the clarifying tank and the ammonia nitrogen value in the second buffer tank in real time, the DCS system collects the ammonia nitrogen value in the clarifying tank, and adjusts the real-time adding amount of the ammonia nitrogen remover in the waste liquid tank to ensure that the ammonia nitrogen value of the clear waste liquid discharged from the second buffer tank is lower than 10 mg/L; and adjusting the process according to the ammonia nitrogen value of the clear waste liquid in the clarifying barrel.
8. The process for reducing ammonia nitrogen in clear waste liquid according to claim 7, wherein the method for adjusting the process according to the ammonia nitrogen value of the clear waste liquid in the clarifying tank comprises the following steps:
when the ammonia nitrogen value of the clear waste liquid in the clarifying barrel is lower than 100mg/L, the clear waste liquid overflows into the waste liquid barrel from the clarifying barrel, and after an ammonia nitrogen remover is added into the waste liquid barrel by a chemical adding device, the clear waste liquid is pumped into a first buffer barrel by the waste liquid barrel; pumping the clear waste liquid of the first buffer barrel into the reaction barrel, overflowing to the second buffer barrel and then discharging.
9. The process for reducing ammonia nitrogen in clear waste liquid according to claim 7, wherein the method for adjusting the process according to the ammonia nitrogen value of the clear waste liquid in the clarifying barrel comprises the following steps:
when clear waste liquid ammonia nitrogen value of depositing tank is higher than 100mg/L, clear waste liquid overflows into waste liquid bucket, after adding ammonia nitrogen remover in to waste liquid bucket through charge device, go into first buffer tank with the clear waste liquid pump that does not reach standard in the waste liquid bucket and store, and pause and go into clear waste liquid to the reaction tank pump by first buffer tank, when the ammonia nitrogen value of clear waste liquid is less than 100mg/L in the depositing tank, go into the reaction tank with clear waste liquid pump in the waste liquid bucket again, and send the clear waste liquid that does not reach standard in the first buffer tank to the reaction tank according to the proportion and carry out the mixing reaction after, clear waste liquid is again gone into first buffer tank by the waste liquid bucket pump in the depositing tank, the clear waste liquid of first buffer tank is gone into the reaction tank again, discharge behind the overflow to the second buffer tank again.
10. The process for reducing ammonia nitrogen in clear waste liquid according to claim 6, wherein when the reaction barrel is in failure, the clear waste liquid is collected by a clarifying barrel, deposited and overflows into the waste liquid barrel, an ammonia nitrogen remover is added into the waste liquid barrel through a dosing device, ammonia nitrogen reduction treatment is performed on the clear waste liquid in the waste liquid barrel, then the clear waste liquid is pumped into a first buffer barrel, the clear waste liquid is fully reacted with a medicament and then pumped into a second buffer barrel to be discharged, and the ammonia nitrogen value of the clear waste liquid discharged by the second buffer barrel is lower than 10 mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210234592.8A CN114604998A (en) | 2022-03-08 | 2022-03-08 | System and process for reducing ammonia nitrogen in clear waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210234592.8A CN114604998A (en) | 2022-03-08 | 2022-03-08 | System and process for reducing ammonia nitrogen in clear waste liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114604998A true CN114604998A (en) | 2022-06-10 |
Family
ID=81863154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210234592.8A Pending CN114604998A (en) | 2022-03-08 | 2022-03-08 | System and process for reducing ammonia nitrogen in clear waste liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114604998A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07185590A (en) * | 1993-12-27 | 1995-07-25 | Sumitomo Heavy Ind Ltd | Method for preventing calcium scaling |
| CN103693775A (en) * | 2013-11-27 | 2014-04-02 | 广东南方碱业股份有限公司 | Method for reducing ammonia nitrogen content of distilled clear waste liquid discharged in ammonia alkali process |
| CN209428301U (en) * | 2018-12-28 | 2019-09-24 | 世纪九如（北京）环境科技股份有限公司 | A kind of wash bottle wastewater pretreatment system |
| CN111825300A (en) * | 2020-07-10 | 2020-10-27 | 陕西神渭煤炭管道运输有限责任公司 | Long-distance pipe-conveying conventional-concentration coal slurry dehydration system and dehydration method |
| CN113292187A (en) * | 2020-12-31 | 2021-08-24 | 清大国华环境集团股份有限公司 | Resourceful treatment method and device for high-concentration ammonia nitrogen wastewater |
| WO2021212777A1 (en) * | 2020-04-24 | 2021-10-28 | 西安热工研究院有限公司 | Automatic dosing control system and method for wastewater softening pretreatment system |
-
2022
- 2022-03-08 CN CN202210234592.8A patent/CN114604998A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07185590A (en) * | 1993-12-27 | 1995-07-25 | Sumitomo Heavy Ind Ltd | Method for preventing calcium scaling |
| CN103693775A (en) * | 2013-11-27 | 2014-04-02 | 广东南方碱业股份有限公司 | Method for reducing ammonia nitrogen content of distilled clear waste liquid discharged in ammonia alkali process |
| CN209428301U (en) * | 2018-12-28 | 2019-09-24 | 世纪九如（北京）环境科技股份有限公司 | A kind of wash bottle wastewater pretreatment system |
| WO2021212777A1 (en) * | 2020-04-24 | 2021-10-28 | 西安热工研究院有限公司 | Automatic dosing control system and method for wastewater softening pretreatment system |
| CN111825300A (en) * | 2020-07-10 | 2020-10-27 | 陕西神渭煤炭管道运输有限责任公司 | Long-distance pipe-conveying conventional-concentration coal slurry dehydration system and dehydration method |
| CN113292187A (en) * | 2020-12-31 | 2021-08-24 | 清大国华环境集团股份有限公司 | Resourceful treatment method and device for high-concentration ammonia nitrogen wastewater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102020374A (en) | Method for recycling waste water of lead-acid storage battery | |
| CN102020375A (en) | Equipment for reclaiming lead acid battery waste water | |
| CN108033604A (en) | A kind of heat-engine plant desulfurized discharged wastewater met the national standard processing system and method | |
| CN103708649A (en) | Method for processing wastewater containing lead by combining flocculent precipitation with adsorption filtration | |
| CN107285489A (en) | A kind of device and method of desulfurization wastewater pretreatment | |
| CN210528699U (en) | Landfill leachate treatment system with biochemical effluent softening function | |
| CN209872590U (en) | High concentration fluorine-containing wastewater's processing system | |
| CN102417257B (en) | Technical method for treating and recovering beer process wastewater | |
| CN106517578A (en) | Heavy metal wastewater treatment method by breaking complexes by granular sludge and ceramic membrane | |
| CN114604998A (en) | System and process for reducing ammonia nitrogen in clear waste liquid | |
| CN110240331A (en) | The method and system of biogas desulfurization are carried out using electrolysis and air-flotation process biogas slurry | |
| CN108751325A (en) | A kind of ammonia nitrogen waste water processing system and ammonia nitrogen waste water treatment method | |
| CN109437448A (en) | Pb-Zn deposits beneficiation wastewater treatment for reuse devices and methods therefor | |
| CN112408558A (en) | Anti-scaling electrodialysis system based on pH control and treatment process | |
| CN1119292C (en) | Method and apparatus for treating wastewater contg. phosphoric acid radical | |
| CN211521881U (en) | A processing apparatus for electroplating burnt copper waste water | |
| CN116216861A (en) | Multistage cylindrical electrochemical device and method for garbage leachate treatment | |
| CN214270482U (en) | A processing system that is used for high calcium waste water of basicity to get rid of calcium ion | |
| CN213803051U (en) | Anti-scaling electrodialysis system based on pH control | |
| CN211497218U (en) | Desulfurization waste water ammonia nitrogen processing system | |
| CN114262097A (en) | Wastewater dechlorination system and method based on electrolytic aluminum coupling chemical precipitation | |
| CN210505889U (en) | System for performing biogas desulfurization by using electrolysis and air flotation biogas slurry treatment | |
| CN211198890U (en) | Industrial wastewater treatment system | |
| CN111039487A (en) | Desulfurization wastewater treatment system and treatment method | |
| CN110386677A (en) | A kind of method of heat-engine plant desulfurized waste water removal calcium ion hardness |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |