CN212269704U - Sewage fluorine removal device - Google Patents
Sewage fluorine removal device Download PDFInfo
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- CN212269704U CN212269704U CN202020759568.2U CN202020759568U CN212269704U CN 212269704 U CN212269704 U CN 212269704U CN 202020759568 U CN202020759568 U CN 202020759568U CN 212269704 U CN212269704 U CN 212269704U
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Abstract
The utility model discloses a sewage defluorination device, which adopts a two-stage defluorination method, wherein nanofiltration concentrated water automatically flows into an adjusting tank at first, then is lifted by a lifting pump to enter an integrated treatment device, and through coagulation and flocculation of the integrated treatment device, fluorine ions react with a defluorination agent to generate sludge precipitation, and then fluoride is discharged in a sludge form through a sludge pump by a primary mud scraper, and meanwhile, sewage is conveyed to a second-stage multiple-effect clarification system; the second-stage multi-effect clarification system is characterized in that through coagulation and flocculation through the integrated treatment equipment, fluoride ions react with a defluorinating agent to generate sludge sediment, the second-stage sludge scraper sends sludge to a sedimentation tank through a reflux pump, and meanwhile, in a sewage conveying plant drain pipe meeting the discharge standard, the sludge is subjected to two-stage sedimentation through the sedimentation tank and the sedimentation tank, returns sewage to the second-stage clarification tank, and is conveyed to a sludge tank through a sludge pump. The utility model discloses arrange strong brine department outside sewage treatment and increase the defluorination device, reduced the defluorination water yield, improved defluorination agent utilization ratio.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, concretely relates to sewage defluorination device.
Background
In the industrial production process, a large amount of fluoride ions are contained in emissions in the processes of iron smelting, phosphate ore processing, phosphate fertilizer production and coal combustion in many industries, so that the produced industrial wastewater also contains fluorine elements, the fluoride contained in the wastewater discharged by some electronic element production industries seriously exceeds the standard, and finally the fluoride wastewater which exceeds the standard flows into the water body in the nature to cause serious water environment pollution and bring certain unsafe factors to the life of people.
According to the requirements of local environmental protection policies, the concentration of fluorine ions in the discharged wastewater is less than 1mg/L, and the external wastewater is subjected to fluorine removal treatment by manually adding aluminum sulfate and other medicaments in the initial stage, so that the effect is poor. Through a large amount of experiments and investigation afterwards, confirm the defluorination effect of all kinds of defluorinating agents, through the special defluorinating agent that device facilities such as construction defluorination dosing tank, pipeline are good in use effect carry out the defluorination at sewage treatment station one, second grade coagulating sedimentation pond direct addition defluorinating agent to sewage, nevertheless because of the intake water volume is great, fluorine ion concentration is lower, defluorinating agent utilization ratio is low, the defluorination expense is high, and long-time operation has great influence to sewage treatment device.
Disclosure of Invention
In order to overcome current defluorination mode because of the volume of intaking is great, and fluoride ion concentration is lower, the defect that defluorination medicament utilization ratio is low, the utility model provides an increase defluorination device on the outer row strong brine of sewage treatment, the water yield only has 25% of current defluorination water volume, and fluoride ion concentration is high, the sewage defluorination device that defluorination medicament utilization ratio is high.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is:
a sewage defluorination device comprises a first-stage multi-effect clarification system and a second-stage multi-effect clarification system, wherein the first-stage multi-effect clarification system is connected with the second-stage multi-effect clarification system; the first-stage multi-effect clarification system comprises a regulating reservoir for receiving concentrated water discharged from a sewage station, at least two sets of capacity integrated treatment equipment with rapid medicament reaction, flocculation sedimentation, clarification and continuous sludge discharge, a lifting pump and a sludge pump, wherein the concentrated water discharged from the sewage station flows into the regulating reservoir with water quality regulation, is lifted by the lifting pump to enter the first-stage integrated treatment equipment, the bottom of the integrated treatment equipment is connected with the sludge pump through a sewage discharge pipe to discharge fluoride in a sludge form, the top of the first-stage integrated treatment equipment is connected with the second-stage clarification system through a pipeline, and a self-defluorinating agent dosing device is arranged on the pipeline connecting the lifting pump and the first-stage integrated treatment equipment; the second grade multiple-effect clarification system includes one set of at least second grade integration treatment facility, backwash pump and sedimentation tank, and integration treatment facility import and one-level multiple-effect clarification headtotail, integration treatment facility bottom are passed through the pipeline and are connected with backwash pump one end, and the backwash pump other end is connected with sedimentation tank one side bottom, and pipe connection to sludge tank is passed through at sedimentation tank side top, and the sedimentation tank bottom is passed through the pipeline and is connected with integration treatment facility's top, is equipped with the mud pump in the sedimentation tank.
Furthermore, the primary integrated treatment equipment comprises a primary clarification tank and a primary mud scraper, wherein the bottom of one side of the primary clarification tank is connected with the other end of the lift pump through a pipeline, an outlet communicated with the top of one side of the primary mud scraper is formed in the top of the other side of the primary clarification tank, the bottom of the primary mud scraper is connected with one end of the sludge pump through a mud discharge pipe, the top of the other side of the primary mud scraper is connected to a secondary clarification system, the bottom of the sedimentation tank is connected with the top of the clarification tank through a pipeline, the top of the primary clarification tank is connected with a self-PAM dosing device, and a self-defluorinating agent dosing device is connected to the pipeline between the lift; second grade integration treatment facility includes the second grade clarification tank of being connected with one-level clarification system, second grade mud scraper, one-level clarification system is connected to second grade clarification tank one side bottom, and second grade clarification tank opposite side is equipped with the export of scraping mud scraper one side top intercommunication with the second grade, scrapes mud scraper opposite side top exit linkage to factory drain pipe, and the mud scraper bottom is connected to backwash pump one end through the mud pipe, and the sedimentation tank bottom is connected through the top of pipeline with the one-level clarification tank, and the top of second grade clarification tank is connected with from sour charge device, from defluorinating agent charge device and from PAM charge device, is equipped with the magnetic in the second grade clarification tank and throws and add and retrieve the unit.
Furthermore, the primary clarification tank comprises a primary coagulation tank and a primary flocculation tank, one side bottom of the primary coagulation tank is connected with a lift pump through a pipeline, the other side top outlet of the primary coagulation tank is communicated with the primary flocculation tank, the secondary clarification tank comprises a secondary coagulation tank and a secondary flocculation tank, one side bottom of the secondary coagulation tank is connected with a primary clarification system through a pipeline, the other side outlet of the secondary coagulation tank is communicated with the secondary flocculation tank, the top of the secondary coagulation tank is connected with a self-defluorination medicine adding device, a self-acid medicine adding device and the bottom of the sedimentation tank through pipelines, the top of the secondary flocculation tank is connected with a self-PAM medicine adding device, the stirring shaft with the stirring blades at the bottom is arranged in the coagulation tank, the top of the stirring shaft is connected with the output shaft of the coagulation mixer positioned at the top of the coagulation tank, the stirring shaft with the stirring blades at the bottom is arranged in the flocculation tank, and the top of the stirring shaft is connected with the output shaft of the flocculation mixer positioned at the top of the flocculation tank.
Further, still be equipped with the gunbarrel between sedimentation tank and the backwash pump, one side of gunbarrel is passed through the pipeline and is connected with the other end of backwash pump, and the top of pipeline and flocculation basin is passed through to the bottom of gunbarrel is connected, and the top of gunbarrel is passed through the pipeline and is connected with gunbarrel one side bottom.
Preferably, the lift pump is equipped with two at least, and one set of integrated treatment facility corresponds a pair of sludge pump or a pair of backwash pump.
The utility model discloses a two-stage defluorination method, the concentrated water of receiving and straining gets into the equalizing basin at first by flowing automatically, and regulating pondage quality of water then promotes by the pump and gets into integrated treatment facility, one-level multiple-effect clarification system, single set throughput 75m3Adding a defluorinating agent and a flocculating agent PAM respectively, reacting fluoride ions with the defluorinating agent to generate sludge sediment, reducing the concentration of the fluoride ions in the sewage to 20-30 mg/l, and discharging the fluoride in the form of sludge; single set of 150m of two-stage multi-effect clarification system3And h, 1 set of the method is adopted, a defluorinating agent and PAM are respectively added, a magnetic powder adding and recovering unit is arranged in the clarification tank, fluoride ions and the defluorinating agent react to generate sludge sediment, and the fluoride ions in the effluent are reduced to more than 1mg/l or the required discharge standard.
The fluorine reduction is carried out on the sewage by the existing primary and secondary coagulating sedimentation tanks of a sewage treatment station, and the total design amount of the fluorine removal for the sewage treatment inlet water is 500m3The utility model discloses a strong brine that integration equipment was arranged outside sewage treatment carries out the defluorination, and it is the biggest 125m of strong water discharge volume after the nanofiltration treatment3The defluorination water amount is 25 percent of the total sewage inlet water, the utilization rate of the defluorination agent is improved, and the defluorination cost is greatly reduced.
Drawings
The invention will be further described with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural view of a primary clarification system of the present invention;
FIG. 2 is a schematic structural view of a secondary clarification system of the present invention;
description of reference numerals: 1. the equalizing basin, 2, the elevator pump, 3, the one-level depositing reservoir, 31, the one-level coagulating basin, 32, the one-level flocculating basin, 33, the coagulating blender, 34, the flocculating blender, 4, the one-level mud scraper, 5, the sludge pump, 6, the second grade depositing reservoir, 61, the second grade coagulating basin, 62, the second grade flocculating basin, 7, the second grade mud scraper, 8, the backwash pump, 9, the gunbarrel, 10, the sedimentation tank, 11, the dredge pump.
Detailed Description
As shown in fig. 1 to 2, the sewage defluorination apparatus of the present embodiment includes a first-stage multi-effect clarification system and a second-stage multi-effect clarification system, wherein the first-stage multi-effect clarification system is connected with the second-stage multi-effect clarification system; the primary multi-effect clarification system comprises a regulating reservoir 1 for receiving concentrated water discharged from a sewage station, at least two sets of capacity integrated treatment equipment with rapid medicament reaction, flocculation sedimentation, clarification and continuous sludge discharge, a lifting pump 2 and a sludge pump 3, wherein the concentrated water discharged from the sewage station flows into the regulating reservoir 1 with water quality regulation, is lifted by the lifting pump 2 to enter the primary integrated treatment equipment, the bottom of the integrated treatment equipment is connected with a sludge pump 5 through a sewage discharge pipe to discharge fluoride in a sludge form, the top of the primary integrated equipment is connected with a secondary clarification system through a pipeline, and a self-defluorinating agent dosing device is arranged on the pipeline connecting the lifting pump 2 and the primary integrated treatment equipment; second grade multiple-effect clarification system includes one set of at least second grade integration treatment facility, backwash pump 8 and sedimentation tank 10, and integration treatment facility import and one-level multiple-effect clarification headtotail, integration treatment facility bottom are passed through the pipeline and are connected with 8 one end of backwash pump, and the other end and the sedimentation tank 10 side bottom of backwash pump are connected, and pipe connection to sludge tank is passed through at sedimentation tank 10 side top, and sedimentation tank 10 bottom is passed through the pipeline and is connected with integration treatment facility's top, is equipped with sludge pump 11 in the sedimentation tank 10.
Further, the primary integrated treatment equipment comprises a primary clarification tank 3 and a primary mud scraper 4, wherein the bottom of one side of the primary clarification tank 4 is connected with the other end of the lift pump 2 through a pipeline, an outlet communicated with the top of one side of the primary mud scraper 4 is formed in the top of the other side of the primary clarification tank 3, the bottom of the primary mud scraper 4 is connected with one end of a sludge pump 5 through a mud discharge pipe, the top of the other side of the primary mud scraper 4 is connected to a secondary clarification system, a self-PAM dosing device is connected to the top of the primary clarification tank 3, and a self-defluorinating agent dosing device is connected to a pipeline between the lift pump 2 and the primary clarification tank 3; second grade integration treatment facility includes 6, the second grade mud scraper 7, the backwash pump 8 of being connected with one-level clarification system, one-level clarification system is connected to 6 one side bottoms of second grade clarification tank, 6 opposite sides of second grade clarification tank be equipped with the export of 7 one side top intercommunications of second grade mud scraper, 7 opposite side top exit linkage of second grade mud scraper to factory's drain pipe, 7 bottoms of second grade mud scraper are connected to 8 one ends of backwash pump through the mud pipe, the top of second grade clarification tank 6 is passed through the pipe connection from sour charge device, from defluorinating agent charge device, from PAM charge device and sedimentation tank 10 bottoms, it throws and the recovery unit to be equipped with the magnetic in the second grade clarification tank 6.
Further, the first-stage clarification tank 3 comprises a first-stage coagulation tank 31 and a first-stage flocculation tank 32, one side bottom of the first-stage coagulation tank 31 is connected with the lift pump 2 through a pipeline, the other side top outlet of the first-stage coagulation tank 31 is communicated with the first-stage flocculation tank 32, the second-stage clarification tank comprises a second-stage coagulation tank 61 and a second-stage flocculation tank 62, one side bottom of the second-stage coagulation tank 61 is connected with a first-stage clarification system through a pipeline, the other side outlet of the second-stage coagulation tank 61 is communicated with the second-stage flocculation tank 62, the top of the second-stage coagulation tank 61 is connected with a self-defluorination medicine adding device, a self-acidification medicine adding device and the bottom of the sedimentation tank 10 through a pipeline, the top of the second-stage flocculation tank 62 is connected with a self-PAM medicine adding device through a pipeline, a stirring shaft with stirring blades at the, the top of the stirring shaft is connected with an output shaft of a flocculation stirrer 34 positioned at the top of the flocculation tank.
Further, still be equipped with the gunbarrel 9 between sedimentation tank 10 and the backwash pump 8, one side of gunbarrel 9 is passed through the pipeline and is connected with the other end of backwash pump 8, and the bottom of gunbarrel 9 is passed through the pipeline and is connected with second grade flocculation basin 62 top, and 9 tops of gunbarrel are passed through the pipeline and are connected with 10 one side bottoms of sedimentation tank.
Preferably, the lift pump 2 is provided with at least two, and one set of integrated treatment equipment corresponds to a pair of sludge pumps 5 or a pair of reflux pumps 8.
The self-defluorinating agent dosing device, the self-PAM dosing device, the self-acid dosing device and the magnetic powder feeding and recycling unit are all the existing devices.
Preferably, the lift pump, the coagulation mixer, the flocculation mixer, the mud scraper, the sludge pump, the reflux pump and the mud pump can be controlled on site or remotely.
The pipes may be connected to the respective devices through flanges.
The utility model discloses a two-stage defluorination method, the concentrated water of receiving and straining gets into the equalizing basin at first by flowing automatically, and regulating pondage quality of water then promotes by the pump and gets into integrated treatment facility, one-level multiple-effect clarification system, single set throughput 75m3The sewage treatment method comprises the following steps of (1)/h, 2 sets of treatment equipment, namely adding a defluorinating agent and a flocculating agent PAM respectively, coagulating and flocculating by integrated treatment equipment, reacting fluoride ions with the defluorinating agent to generate sludge sediment, discharging the fluoride in a sludge form by a sludge pump through a primary sludge scraper 4, reducing the concentration of the fluoride ions in the sewage to 20-30 mg/l by the primary sludge scraper 4, and conveying the sewage to a secondary multiple-effect clarification system; single set of 150m of two-stage multi-effect clarification system3And h, 1 set of the method is adopted, a defluorinating agent and an acid are added into a secondary coagulation tank 61, PAM is added into a secondary flocculation tank 62, fluoride ions react with the defluorinating agent to generate sludge sediment, a secondary mud scraper 7 sends the sludge into a sedimentation tank 10 through a reflux pump 8, the secondary mud scraper 7 simultaneously sends the sludge meeting the requirement of more than 1mg/l or meeting the required discharge standard into a drainage pipe of a sewage conveying plant area, the sludge is subjected to two-stage sedimentation through a sedimentation tank 9 and the sedimentation tank 10, the sewage is returned into a secondary clarification tank 6, and the sludge is conveyed into a sludge tank through a sludge pump 11.
Claims (5)
1. The sewage defluorination device is characterized by comprising a primary multi-effect clarification system and a secondary multi-effect clarification system, wherein the primary multi-effect clarification system is connected with the secondary multi-effect clarification system; the primary multi-effect clarification system comprises a regulating reservoir for receiving concentrated water discharged from a sewage station, at least two sets of integrated treatment equipment with the capabilities of rapid medicament reaction, flocculation sedimentation, clarification and continuous sludge discharge, a lifting pump and a sludge pump, wherein the concentrated water discharged from the sewage station flows into the regulating reservoir with the function of water quality regulation, is lifted by the lifting pump and enters the primary integrated treatment equipment, the bottom of the integrated treatment equipment is connected with the sludge pump through a discharge pipe to discharge fluoride in a sludge form, and the top of the primary integrated equipment is connected with the secondary clarification system through a pipeline; the second grade multiple-effect clarification system includes one set of at least second grade integration treatment facility, backwash pump and sedimentation tank, and integration treatment facility import and one-level multiple-effect clarification headtotail, integration treatment facility bottom are passed through the pipeline and are connected with backwash pump one end, and the backwash pump other end is connected with sedimentation tank one side bottom, and pipe connection to sludge tank is passed through at sedimentation tank side top, and the sedimentation tank bottom is passed through the pipeline and is connected with integration treatment facility's top, is equipped with the mud pump in the sedimentation tank.
2. The sewage defluorination device according to claim 1, wherein the primary integrated treatment equipment comprises a primary clarifier and a primary scraper, the bottom of one side of the primary clarifier is connected with the other end of the lift pump through a pipeline, the top of the other side of the primary clarifier is provided with an outlet communicated with the top of one side of the primary scraper, the bottom of the primary scraper is connected with one end of the sludge pump through a sludge discharge pipe, the top of the other side of the primary scraper is connected to a secondary clarification system, the top of the primary clarifier is connected with a self-PAM dosing device, and a self-defluorination agent dosing device is connected on a pipeline between the lift pump and the primary clarifier; second grade integration treatment facility includes second grade clarification tank, second grade mud scraper, the backwash pump of being connected with one-level clarification system, one-level clarification system is connected to second grade clarification tank one side bottom, and second grade clarification tank opposite side is equipped with the export of mud scraper one side top intercommunication, and ear buckle mud scraper opposite side top exit linkage to factory floor drain pipe, and the second grade mud scraper bottom is connected to backwash pump one end through the mud pipe, and the top of second grade clarification tank is passed through the pipe connection from sour charge device, from defluorinating agent charge device, from PAM charge device and sedimentation tank bottom, is equipped with the magnetic in the second grade clarification tank and throws with and retrieve the unit.
3. The sewage defluorination device according to claim 2, wherein the primary clarification tank comprises a primary coagulation tank and a primary flocculation tank, the bottom of one side of the primary coagulation tank is connected with a lift pump through a pipeline, the top outlet of the other side of the primary coagulation stirring tank is communicated with the primary flocculation tank, the secondary clarification tank comprises a secondary coagulation tank and a secondary flocculation tank, the bottom of one side of the secondary coagulation tank is connected with a primary clarification system through a pipeline, the outlet of the other side of the secondary coagulation tank is communicated with the secondary flocculation tank, the top of the secondary coagulation tank is connected with a self-defluorination dosing device, a self-acid dosing device and the bottom of a sedimentation tank through pipelines, the top of the secondary flocculation tank is connected with a self-PAM dosing device, a stirring shaft with stirring blades at the bottom is arranged in the coagulation tank, the top of the stirring shaft is connected with a output shaft of a coagulation mixer positioned at the top of the, the top of the stirring shaft is connected with the output shaft of the flocculation stirrer positioned at the top of the flocculation tank.
4. The sewage defluorination device according to claim 1 or 2, further comprising a settling tank arranged between the settling tank and the reflux pump, wherein one side of the settling tank is connected with the other end of the reflux pump through a pipeline, the bottom of the settling tank is connected with the top of the secondary flocculation tank through a pipeline, and the top of the settling tank is connected with the bottom of one side of the settling tank through a pipeline.
5. The wastewater fluorine removal device according to claim 1, wherein the number of the lift pumps is at least two, and one set of integrated treatment equipment corresponds to one pair of sludge pumps or one pair of reflux pumps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020759568.2U CN212269704U (en) | 2020-05-09 | 2020-05-09 | Sewage fluorine removal device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020759568.2U CN212269704U (en) | 2020-05-09 | 2020-05-09 | Sewage fluorine removal device |
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| CN212269704U true CN212269704U (en) | 2021-01-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113480045A (en) * | 2021-07-22 | 2021-10-08 | 北京国电富通科技发展有限责任公司 | Fluorine and silicon removal method for reverse osmosis concentrated water |
| CN115572009A (en) * | 2022-10-17 | 2023-01-06 | 西安西热水务环保有限公司 | Integrated reactor for removing fluorine and reducing turbidity |
-
2020
- 2020-05-09 CN CN202020759568.2U patent/CN212269704U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113480045A (en) * | 2021-07-22 | 2021-10-08 | 北京国电富通科技发展有限责任公司 | Fluorine and silicon removal method for reverse osmosis concentrated water |
| CN115572009A (en) * | 2022-10-17 | 2023-01-06 | 西安西热水务环保有限公司 | Integrated reactor for removing fluorine and reducing turbidity |
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Address after: 048000 Zhoucun Town, Zezhou County, Jincheng City, Shanxi Province Patentee after: Jinneng holding equipment manufacturing group Huayu energy chemical Shanxi Co.,Ltd. Address before: 048000 Zhoucun Town, Zezhou County, Jincheng City, Shanxi Province Patentee before: Shanxi Jin Hua Yumei coal chemical industry LLC |
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