CN210237309U - Water quality adjusting system for system water behind supercritical reaction device - Google Patents
Water quality adjusting system for system water behind supercritical reaction device Download PDFInfo
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- CN210237309U CN210237309U CN201920717564.5U CN201920717564U CN210237309U CN 210237309 U CN210237309 U CN 210237309U CN 201920717564 U CN201920717564 U CN 201920717564U CN 210237309 U CN210237309 U CN 210237309U
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Abstract
The utility model provides a quality of water governing system of system water behind supercritical reaction unit, belong to waste treatment technical field, including slag water buffer tank and the supercritical equalizing basin that communicates in proper order, input at the slag water buffer tank is equipped with ammonia nitrogen adjusting device and pH value adjusting device, still throw the well accuse machine of throwing the material volume to the slag water buffer tank including being used for controlling ammonia nitrogen adjusting device and pH value adjusting device, be equipped with first pH meter and level sensor be connected with well accuse machine signal input part in the slag water buffer tank respectively, can detect the pH value through first pH meter, level sensor detects waste water liquid level, can adjust waste water ammonia nitrogen volume and pH value, discharge to the supercritical equalizing basin after quality of water is up to standard in, it is stable to have the pH value, reduce the medicament cost, waste water can discharge to reach standard, accord with environmental protection emission standard.
Description
Technical Field
The utility model belongs to the technical field of waste treatment, more specifically say, relate to a quality of water governing system of system water behind supercritical reactor.
Background
The wastewater discharged by the supercritical reaction device contains ammonia nitrogen and fluoride ions with different concentrations, and the discharge standards of the ammonia nitrogen and the fluoride ions are respectively 48mg/L and 1.5mg/L due to the requirement of environmental protection. The fluorine removal agent can play a good role in removing fluorine under the condition of proper pH (8-8.5).
The water quality regulation is mainly used for degrading ammonia nitrogen in system water behind the supercritical reactor and regulating the pH value of the system water; in the supercritical water oxidation process, organic nitrogen can be converted into ammonia nitrogen, and the ammonia nitrogen can be discharged only after being degraded to reach the standard because the environmental protection discharge standard is 48 mg/L; in the prior treatment mode, a sodium hypochlorite solution is added into a phosphorus removal neutralization tank, ammonia nitrogen is oxidized by adopting a breakpoint fluoridation method, and the ammonia nitrogen removal by adopting a breakpoint chloridization method is greatly influenced by temperature and is difficult to control, so that the wastewater does not reach the standard.
In addition, due to the large difference of the feeding properties of the supercritical water oxidation reactor, organic chlorine and organic sulfur can be converted into chloride ions and sulfate radicals in the supercritical water oxidation process, and in a system with unchanged cations, the generation of the chloride ions and the sulfate radicals can cause the pH value to be reduced. The treatment method for adjusting the pH value is to add liquid caustic soda into a supercritical regulating tank, and the pH value of system water fluctuates greatly, the supercritical regulating tank is in a continuous water inlet state and a continuous water outlet state, so that the pH value is not well regulated, the effect of the defluorinating agent cannot reach an optimal state, and the wastewater cannot reach the standard.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a quality of water governing system of system water behind supercritical reactor to solve the system water ammonia nitrogen behind the supercritical reactor that exists among the prior art and pH value and be difficult to control, quality of water regulation effect is not good, leads to the not up to standard technical problem of waste water.
In order to achieve the above object, the utility model adopts the following technical scheme: provides a water quality regulating system of system water behind a supercritical reaction device, which comprises
The input end of the slag water buffer tank is communicated with the supercritical reaction device, and a first pH meter for measuring the pH value of the slag water and a liquid level sensor for measuring the liquid level of the slag water are arranged in the slag water buffer tank;
the input end of the supercritical regulating tank is communicated with the output end of the slag water buffer tank, and the output end of the supercritical regulating tank is communicated with the input end of the water treatment device;
the ammonia nitrogen adjusting device is arranged at the input end of the slag water buffer tank and is used for adding a sodium hypochlorite solution into the slag water buffer tank;
the pH value adjusting device is arranged at the input end of the slag water buffer tank and is used for adding liquid caustic soda into the slag water buffer tank;
and the central control machine is used for receiving signals of the first pH meter and the liquid level sensor and respectively controlling the adding amount of the ammonia nitrogen adjusting device and the pH value adjusting device to the slag water buffer tank.
Further, the ammonia nitrogen adjusting device comprises a sodium hypochlorite storage tank and a sodium hypochlorite feeder; the output of sodium hypochlorite storage tank with the sediment water buffer tank intercommunication, sodium hypochlorite throws the ware setting and is in the sodium hypochlorite storage tank with on the pipeline between the sediment water buffer tank, be used for to pump sending sodium hypochlorite solution in the sediment water buffer tank.
Further, the pH value adjusting device comprises a liquid caustic soda storage tank and a liquid caustic soda adding device; the output end of the liquid caustic soda storage tank is communicated with the slag water buffer tank, and the liquid caustic soda adding device is arranged on a pipeline between the liquid caustic soda storage tank and the slag water buffer tank and used for pumping liquid caustic soda into the slag water buffer tank.
Furthermore, the signal input end of the central control machine is respectively connected with the first pH meter and the liquid level sensor, the signal output end of the central control machine is respectively connected with the sodium hypochlorite adding device and the liquid caustic soda adding device, and the central control machine is used for controlling the sodium hypochlorite adding device to add the amount of sodium hypochlorite solution into the slag water buffer tank and controlling the liquid caustic soda adding device to add the amount of liquid caustic soda into the slag water buffer tank.
Further, when the liquid level sensor detects that the liquid level in the slag water buffer tank reaches 50%, the central control machine controls the sodium hypochlorite adding device to start; and when the liquid level sensor detects that the liquid level in the slag water buffer tank reaches 70%, the central control machine controls the liquid caustic soda adding device to start.
Furthermore, a slag water delivery pump is arranged on a pipeline between the slag water buffer tank and the supercritical regulating tank and controlled by the central control machine, and the slag water delivery pump is used for pumping materials into the supercritical regulating tank.
Furthermore, the system for regulating the water quality of the system water behind the supercritical reaction device further comprises a spray tower, wherein the spray tower is arranged on a pipeline between the slag water buffer tank and the supercritical regulating tank and used for recovering and purifying waste liquid.
Furthermore, a second pH meter is arranged in the supercritical regulating tank, and a signal output end of the second pH meter is connected with a signal input end of the central control machine.
Further, the first pH meter and the second pH meter are both pH probes.
The utility model provides a pair of quality of water governing system of system water behind supercritical reaction unit's beneficial effect lies in: compared with the prior art, the utility model relates to a water quality control system of system water behind supercritical reaction unit, the pH value in the sediment water buffer tank can be detected to first pH meter, level sensor can detect the liquid level value in the sediment water buffer tank, and transmit the signal to well control machine, well control machine control ammonia nitrogen adjusting device and pH value adjusting device throw the material volume in the sediment water buffer tank, discharge to the supercritical regulation pond after the quality of water reaches standard, the system water ammonia nitrogen and pH value are difficult to control behind the supercritical reactor that exist among the prior art has been solved, the quality of water regulation effect is not good, lead to the not up-to-standard technical problem of waste water, have the utilization ratio that can improve sodium hypochlorite solution, reduce the cost of defluorination medicament, can effectively adjust the pH value of system water behind the supercritical reaction unit, make the pH value of system water stabilize between 8-8.5, stable and suitable pH value, can help follow-up water treatment medicament to exert corresponding effect, ensuring the technical effect of standard discharge of the wastewater.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a block diagram of a system for regulating water quality of system water after a supercritical reactor according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals: 1. a slag water buffer tank; 11. a first pH meter; 12. a liquid level sensor; 2. a supercritical conditioning tank; 21. a second pH meter; 3. an ammonia nitrogen adjusting device; 31. a sodium hypochlorite storage tank; 32. a sodium hypochlorite feeder; 4. a pH value adjusting device; 41. a liquid caustic soda storage tank; 42. a liquid caustic soda feeder; 5. a central control machine; 6. a slag water delivery pump; 7. and (4) a spray tower.
In the figure, the dotted line represents the signal flow direction, the solid line represents the material flow direction, and the arrow represents the flow direction.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a water quality adjusting system of system water behind a supercritical reactor according to an embodiment of the present invention will now be described. The water quality adjusting system of the system water behind the supercritical reaction device comprises a slag water buffer tank 1, a supercritical adjusting tank 2, an ammonia nitrogen adjusting device 3, a pH value adjusting device 4 and a central control machine 5;
the input end of the slag water buffer tank 1 is communicated with a supercritical reaction device, and a first pH meter 11 for measuring the pH value of the slag water and a liquid level sensor 12 for measuring the liquid level of the slag water are arranged in the slag water buffer tank 1; the slag water buffer tank 1 is used for containing system water or slag water after reaction of the supercritical reaction device, the pH value of the slag water in the slag water buffer tank 1 is unstable, and the supercritical reaction device can convert organic nitrogen into ammonia nitrogen and the content of ammonia nitrogen is unstable in the operation process;
the input end of the supercritical regulating pool 2 is communicated with the output end of the slag water buffer tank 1, and the output end is communicated with the input end of the water treatment device; the supercritical regulating tank 2 can store the waste water treated by the slag water buffer tank 1, the waste water in the supercritical regulating tank 2 is treated by the ammonia nitrogen regulating device 3 and the pH value regulating device 4, the ammonia nitrogen content and the pH value of the waste water meet the environmental protection discharge standard, the pH value is stabilized between 8 and 8.5, and the water quality meets the standard or meets the requirement. The external equipment that handles is carried out water on water treatment facilities, after the quality of water in supercritical regulating pond 2 meets the requirements, can be with waste water discharge to water treatment facilities in, be located water treatment facilities and be prior art, so the utility model discloses in no longer describe repeatedly water treatment facilities.
The ammonia nitrogen adjusting device 3 is arranged at the input end of the slag water buffer tank 1 and is used for adding a sodium hypochlorite solution into the slag water buffer tank 1; the sodium hypochlorite can oxidize ammonia nitrogen, the method for removing ammonia nitrogen by the sodium hypochlorite is greatly influenced by temperature, and the method has better treatment effect when the temperature is higher. Because supercritical water oxidation is the heat treatment reaction, releases a large amount of heat in the reaction process, so the water of the back system still has the temperature of 40-50 ℃, and sodium hypochlorite is added at the position, the utilization rate of the sodium hypochlorite can be effectively improved, and the medicament cost is reduced.
The pH value adjusting device 4 is arranged at the input end of the slag water buffer tank 1 and is used for adding liquid caustic soda into the slag water buffer tank 1; liquid caustic soda is liquid sodium hydroxide, also known as caustic soda or caustic soda. The concentration of liquid caustic soda is usually 30-32% or 40-42% due to different production processes in the existing chlor-alkali plants. And liquid caustic soda is added into the slag water buffer tank 1, and can adjust the pH value of the slag water and increase the pH value, so that the pH value is prevented from being reduced due to generation of chloride ions and sulfate radicals in a system with unchanged cations, the pH value is kept stable, and the removal effect of the fluorine removal agent is improved.
And the central control machine 5 is used for receiving signals of the first pH meter 11 and the liquid level sensor 12 and respectively controlling the adding amount of the ammonia nitrogen adjusting device 3 and the pH value adjusting device 4 to the slag water buffer tank 1. The central control machine 5 can collect the pH value of the slag water fed back by the first pH meter 11 and respectively control the adding amount of the ammonia nitrogen adjusting device 3 and the pH value adjusting device 4 to the slag water buffer tank 1, so that the ammonia nitrogen content and the pH value of the slag water in the slag water buffer tank 1 can be kept stable.
The embodiment of the utility model provides a quality of water governing system of system water behind supercritical reaction unit, compared with the prior art, first pH meter 11 can detect the pH value in the sediment water buffer tank 1, level sensor 12 can detect the liquid level value in the sediment water buffer tank 1, and transmit the signal to well control machine 5, well control machine 5 controls ammonia nitrogen adjusting device 3 and pH value adjusting device 4 and adds the material volume to sediment water buffer tank 1, discharge to supercritical regulation pond 2 after quality of water reaches standard, the problem of system water ammonia nitrogen and pH value behind the supercritical reactor that exist among the prior art are difficult to control is solved, the quality of water regulation effect is not good, lead to waste water not up to standard, have the utilization ratio that can improve sodium hypochlorite solution, reduce the cost of defluorinating agent, can effectively adjust the pH value of system water behind the supercritical reaction unit, make the pH value of system water after stabilize between 8-8.5, the stable and proper pH value can help the subsequent water treatment agent to play a corresponding role, and the technical effect that the wastewater can reach the discharge standard is ensured.
The embodiment of the utility model provides a pair of quality of water governing system of system water behind supercritical reaction unit for in the quality of water regulation of the system water after supercritical reaction unit handles, adjust the ammonia nitrogen content and the pH value of the quality of water of system water, make ammonia nitrogen content accord with environmental protection emission standard, through the sustainable monitoring pH value of pH meter, make the pH value keep between 8-8.5, and can continuously keep, it is beneficial to the processing of system water, waste water discharge is up to standard.
Referring to fig. 1, as a specific implementation manner of the water quality adjusting system of the system water behind the supercritical reactor provided in the embodiment of the present invention, the ammonia nitrogen adjusting device 3 includes a sodium hypochlorite storage tank 31 and a sodium hypochlorite dispenser 32; the output of sodium hypochlorite storage tank 31 with 1 intercommunication of sediment water buffer tank, sodium hypochlorite adder 32 sets up sodium hypochlorite storage tank 31 with on the pipeline between the sediment water buffer tank 1, be used for to pump sodium hypochlorite solution in the sediment water buffer tank 1. Sodium hypochlorite can oxidize the ammonia nitrogen of the slag water in the slag water buffer tank 1, so that the ammonia nitrogen content is reduced, the ammonia nitrogen adjusting device 3 is controlled by the central control machine 5 to throw the adding amount of the ammonia nitrogen in the slag water buffer tank 1, the liquid level of the slag water in the slag water buffer tank 1 is detected by the liquid level sensor 12, when the liquid level in the slag water buffer tank 1 reaches 50%, the sodium hypochlorite throwing device 32 of the ammonia nitrogen adjusting device 3 is started, and the ammonia nitrogen is added into the slag water buffer tank 1. Sodium hypochlorite dispenser 32 is a sodium hypochlorite delivery pump.
Referring to fig. 1, as a specific implementation manner of the water quality adjusting system of the system water after the supercritical reactor according to the embodiment of the present invention, the pH adjusting device 4 includes a liquid caustic soda storage tank 41 and a liquid caustic soda injector 42; the output end of the liquid caustic soda storage tank 41 is communicated with the slag water buffer tank 1, and the liquid caustic soda adding device 42 is arranged on a pipeline between the liquid caustic soda storage tank 41 and the slag water buffer tank 1 and used for pumping liquid caustic soda into the slag water buffer tank 1. The liquid caustic soda can improve the pH value of the slag water in the slag water buffer tank 1, real-time pH value and liquid level value are transmitted to the central control machine 5 through the detection of the first pH meter 11 and the liquid level sensor 12, the central control machine 5 judges the current pH value and the liquid level, when the liquid level in the slag water buffer tank 1 reaches 70%, the liquid caustic soda adding device 42 of the pH value adjusting device 4 is started, the liquid caustic soda is added into the slag water buffer tank 1, and the pH value of the slag water is kept between 8 and 8.5. The liquid caustic soda dispenser 42 is a liquid caustic soda transfer pump.
Referring to fig. 1, as a specific implementation manner of the system for regulating water quality of system water after supercritical reactor provided in the embodiment of the present invention, the signal input end of the central control machine 5 is connected to the first pH meter 11 and the liquid level sensor 12, the signal output end is connected to the sodium hypochlorite injector 32 and the liquid caustic soda injector 42, and the central control machine 5 is configured to control the sodium hypochlorite injector 32 to add the amount of sodium hypochlorite solution into the slag water buffer tank 1 and to control the liquid caustic soda injector 42 to add the amount of liquid caustic soda into the slag water buffer tank 1. The central control machine 5 can effectively monitor the liquid level value and the pH value (pH value) in the slag water buffer tank 1 and ensure that the slag water in the slag water buffer tank 1 meets the environmental-friendly discharge standard; when the liquid level in the slag water buffer tank 1 reaches 50%, starting a sodium hypochlorite adding device 32 of an ammonia nitrogen adjusting device 3, and adding ammonia nitrogen into the slag water buffer tank 1; when the liquid level in the slag water buffer tank 1 reaches 70 percent, a liquid caustic soda adding device 42 of the pH value adjusting device 4 is started, and liquid caustic soda is added into the slag water buffer tank 1, so that the pH value of the slag water is kept between 8 and 8.5. Therefore, the ammonia nitrogen content and the pH value of the slag water in the slag water buffer tank 1 can be kept stable, and the slag water is discharged into the supercritical regulating tank 2.
Referring to fig. 1, as a specific implementation manner of the system for regulating the quality of the system water after the supercritical reactor provided in the embodiment of the present invention, when the liquid level sensor 12 detects that the liquid level in the slag water buffer tank 1 reaches 50%, the central control machine 5 controls the sodium hypochlorite adding device 32 to start; when the liquid level sensor 12 detects that the liquid level in the slag water buffer tank 1 reaches 70%, the central control machine 5 controls the liquid caustic soda adding device 42 to start. The liquid level sensor 12 is connected with the central control machine 5, the current liquid level value in the slag water buffer tank 1 can be seen on the central control machine 5, a parameter can be set on the central control machine 5, if the liquid level reaches 50%, sodium hypochlorite is added into the slag water buffer tank 1, and when the liquid level reaches 70%, caustic soda liquid is added into the slag water buffer tank 1, so that the effect is that the water quality of the slag water in the slag water buffer tank 1 meets the environmental protection discharge standard and is beneficial to the exertion of subsequent water treatment medicaments through the control of the central control machine 5, and the slag water is ensured to be discharged up to the standard.
Referring to fig. 1, as a specific implementation manner of the system for regulating the water quality of the system water after the supercritical reactor provided in the embodiment of the present invention, a slag water delivery pump 6 is disposed on a pipeline between the slag water buffer tank 1 and the supercritical regulating tank 2, the slag water delivery pump 6 is controlled by the central control machine 5, and the slag water delivery pump 6 is used for pumping the material into the supercritical regulating tank 2. Slag water buffer tank 1 discharges the slag water up to standard to supercritical equalizing basin 2, discharges with the help of slag water delivery pump 6, and slag water delivery pump 6's work efficiency is high, and power is big, can effectively improve the efficiency of carrying the material to in supercritical equalizing basin 2. The slag water delivery pump 6 can also be controlled by the central control machine 5, and when the slag water delivery pump 6 needs to be opened, the slag water delivery pump can be operated on the central control machine 5 without being independently opened or closed on site, so that manpower is saved, and the water quality adjustment automation is improved.
Referring to fig. 1, as a specific implementation manner of the system for regulating the water quality of the system water after the supercritical reactor provided in the embodiment of the present invention, the system for regulating the water quality of the system water after the supercritical reactor further includes a spray tower 7, and the spray tower 7 is disposed on the pipeline between the slag water buffer tank 1 and the supercritical regulating tank 2, and is used for recovering and purifying the waste liquid. The inside of spray column 7 is equipped with tertiary spray mechanism, can effectively filter and purify the sediment water, and spray column 7 can effectively improve the rate of recovery of sediment water or waste water.
Referring to fig. 1, as a specific implementation manner of the system for adjusting the quality of the system water after the supercritical reactor according to the embodiment of the present invention, a second pH meter 21 is disposed in the supercritical adjusting tank 2, and a signal output end of the second pH meter 21 is connected to a signal input end of the central control unit 5. The second pH meter 21 is arranged in the supercritical regulating tank 2, the pH value of the wastewater in the supercritical regulating tank 2 can be fed back to the central control machine 5 through the detection of the second pH meter 21, the pH value of the wastewater in the supercritical regulating tank 2 can be seen on the central control machine 5, and can also be used as a reference for judging whether the treated water quality meets the requirement (standard), if the pH value detected by the second pH meter 21 is consistent with (or the same as) the pH value detected by the first pH meter 11, the water quality regulated by the ammonia nitrogen regulating device 3 and the pH value regulating device 4 can be determined to meet the requirement and the environmental protection discharge standard; if the pH value detected by the second pH meter 21 is not the same as (or different from) the pH value detected by the first pH meter 11, it can be determined that the water quality adjusted by the ammonia nitrogen adjusting device 3 and the pH value adjusting device 4 does not meet the requirements and the environmental emission standard, and the sodium hypochlorite adding amount of the ammonia nitrogen adjusting device 3 or the caustic soda liquid adding amount of the pH value adjusting device 4 needs to be readjusted, so that the final pH value is between 8 and 8.5.
Referring to fig. 1, as a specific implementation manner of the system for adjusting water quality of system water after supercritical reactor according to the embodiment of the present invention, the first pH meter 11 and the second pH meter 21 are both pH probes. The pH probe can effectively detect the pH value of the slag water (wastewater), the pH value signal is returned to the central control machine 5, the central control machine 5 has a preset pH value range, and then the pH value adjusting device 4 is controlled to add liquid alkali amount into the slag water buffer tank 1, so that the stable pH value is kept in the slag water buffer tank 1.
The utility model discloses a quality of water governing system of system water behind supercritical reactor's working process as follows: firstly, discharging system water treated by a supercritical reaction device into a slag water buffer tank 1, externally connecting the slag water buffer tank 1 with an ammonia nitrogen adjusting device 3 and a pH value adjusting device 4, and discharging the treated water into a supercritical regulating tank 2; the water quality in the slag water buffer tank 1 is not qualified under the general condition, materials such as sodium hypochlorite and caustic soda need to be added into the slag water buffer tank 1 through the two devices, the sodium hypochlorite can oxidize ammonia nitrogen, the caustic soda can increase the pH value of the water quality, the pH meter detects the pH value of the water quality through a first pH meter 11 and a liquid level sensor 12 which are arranged in the slag water buffer tank 1, the liquid level sensor 12 can detect the liquid level of the slag water, the first pH meter 11 and the liquid level sensor 12 are respectively connected with the input end of a central control machine 5, an ammonia nitrogen adjusting device 3 and a pH value adjusting device 4 which can be controlled by the central control machine 5 add the amount of the materials into the slag water buffer tank 1, and the discharged wastewater meets the requirement;
when the liquid level in the slag water buffer tank 1 reaches 50%, starting a sodium hypochlorite adding device 32 of an ammonia nitrogen adjusting device 3, and adding ammonia nitrogen into the slag water buffer tank 1; when the liquid level in the slag water buffer tank 1 reaches 70 percent, a liquid caustic soda adding device 42 of the pH value adjusting device 4 is started, and liquid caustic soda is added into the slag water buffer tank 1, so that the pH value of the slag water is kept between 8 and 8.5. Therefore, the ammonia nitrogen content and the pH value of the slag water in the slag water buffer tank 1 can be kept stable, and the slag water is discharged into the supercritical regulating tank 2.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A water quality regulating system of system water behind supercritical reaction device which is characterized in that: comprises that
The input end of the slag water buffer tank is communicated with the supercritical reaction device, and a first pH meter for measuring the pH value of the slag water and a liquid level sensor for measuring the liquid level of the slag water are arranged in the slag water buffer tank;
the input end of the supercritical regulating tank is communicated with the output end of the slag water buffer tank, and the output end of the supercritical regulating tank is communicated with the input end of the water treatment device;
the ammonia nitrogen adjusting device is arranged at the input end of the slag water buffer tank and is used for adding a sodium hypochlorite solution into the slag water buffer tank;
the pH value adjusting device is arranged at the input end of the slag water buffer tank and is used for adding liquid caustic soda into the slag water buffer tank;
and the central control machine is used for receiving signals of the first pH meter and the liquid level sensor and respectively controlling the adding amount of the ammonia nitrogen adjusting device and the pH value adjusting device to the slag water buffer tank.
2. The water quality regulating system of the system water after the supercritical reaction device according to claim 1, characterized in that: the ammonia nitrogen adjusting device comprises a sodium hypochlorite storage tank and a sodium hypochlorite feeder; the output of sodium hypochlorite storage tank with the sediment water buffer tank intercommunication, sodium hypochlorite throws the ware setting and is in the sodium hypochlorite storage tank with on the pipeline between the sediment water buffer tank, be used for to pump sending sodium hypochlorite solution in the sediment water buffer tank.
3. The water quality regulating system of the system water after the supercritical reaction device according to claim 2, characterized in that: the pH value adjusting device comprises a liquid caustic soda storage tank and a liquid caustic soda feeder; the output end of the liquid caustic soda storage tank is communicated with the slag water buffer tank, and the liquid caustic soda adding device is arranged on a pipeline between the liquid caustic soda storage tank and the slag water buffer tank and used for pumping liquid caustic soda into the slag water buffer tank.
4. The water quality regulating system of the system water after the supercritical reaction device according to claim 3, characterized in that: the signal input end of the central control machine is respectively connected with the first pH meter and the liquid level sensor, the signal output end of the central control machine is respectively connected with the sodium hypochlorite adder and the liquid caustic soda adder, and the central control machine is used for controlling the sodium hypochlorite adder to add sodium hypochlorite solution amount into the slag water buffer tank and to control the liquid caustic soda adder to add liquid caustic soda amount into the slag water buffer tank.
5. The water quality regulating system of the system water after the supercritical reaction device according to claim 4, characterized in that: when the liquid level sensor detects that the liquid level in the slag water buffer tank reaches 50%, the central control machine controls the sodium hypochlorite adding device to start; and when the liquid level sensor detects that the liquid level in the slag water buffer tank reaches 70%, the central control machine controls the liquid caustic soda adding device to start.
6. The water quality regulating system of the system water after the supercritical reaction device according to claim 1, characterized in that: and a slag water delivery pump is arranged on a pipeline between the slag water buffer tank and the supercritical regulating tank and is controlled by the central control machine, and the slag water delivery pump is used for pumping materials into the supercritical regulating tank.
7. The water quality regulating system of the system water after the supercritical reaction device according to claim 1, characterized in that: the water quality adjusting system of the system water behind the supercritical reaction device further comprises a spray tower, wherein the spray tower is arranged on a pipeline between the slag water buffer tank and the supercritical adjusting tank and used for recovering and purifying waste liquid.
8. The water quality regulating system of the system water after the supercritical reaction device according to claim 1, characterized in that: and a second pH meter is arranged in the supercritical regulating tank, and the signal output end of the second pH meter is connected with the signal input end of the central control machine.
9. The water quality regulating system of the system water after the supercritical reaction device according to claim 8, characterized in that: the first pH meter and the second pH meter are both pH probes.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112939269A (en) * | 2021-01-26 | 2021-06-11 | 裕华生态环境股份有限公司 | Gardens discarded object processing system based on novel ammonia nitrogen gets rid of technique |
| CN113526742A (en) * | 2021-08-09 | 2021-10-22 | 石家庄新奥环保科技有限公司 | Sewage treatment system for preventing discharge from exceeding standard and control method thereof |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112939269A (en) * | 2021-01-26 | 2021-06-11 | 裕华生态环境股份有限公司 | Gardens discarded object processing system based on novel ammonia nitrogen gets rid of technique |
| CN113526742A (en) * | 2021-08-09 | 2021-10-22 | 石家庄新奥环保科技有限公司 | Sewage treatment system for preventing discharge from exceeding standard and control method thereof |
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