CN114014459A - System and method for recycling scum in air flotation and sedimentation integrated machine - Google Patents
System and method for recycling scum in air flotation and sedimentation integrated machine Download PDFInfo
- Publication number
- CN114014459A CN114014459A CN202111281692.8A CN202111281692A CN114014459A CN 114014459 A CN114014459 A CN 114014459A CN 202111281692 A CN202111281692 A CN 202111281692A CN 114014459 A CN114014459 A CN 114014459A
- Authority
- CN
- China
- Prior art keywords
- scum
- water
- dosing
- reaction bin
- barrel
- 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.)
- Withdrawn
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
-
- 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
- C02F1/583—Treatment of water, waste water, or sewage by removing specified dissolved compounds by removing fluoride or fluorine compounds
-
- 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
- C02F2101/105—Phosphorus compounds
-
- 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
- C02F2101/12—Halogens or halogen-containing compounds
- C02F2101/14—Fluorine or fluorine-containing compounds
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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
本发明公开了气浮沉淀一体机内浮渣的循环利用系统及其使用方法，包括气浮沉淀一体机及多个加药桶，气浮沉淀一体机内设有反应仓，反应仓一端设有进水口及多个加药口，另一端设有出水口；还包括胶体磨，排渣槽通过管路连接至胶体磨的进口端，胶体磨的出口连接至第一加药桶，第一加药桶通过第一加药计量泵连接至反应仓。本发明利用胶体磨对浮渣进行均质，均质后的浮渣全部回用，作为除磷药剂、除氟药剂、混凝剂等使用，可减少药剂的投加量；且浮渣回用后，减少了污泥的量。
The invention discloses a system for recycling scum in an integrated air flotation and sedimentation machine and a method for using the same, including an integrated air flotation and sedimentation machine and a plurality of dosing barrels. The integrated air flotation and sedimentation machine is provided with a reaction chamber, one end of which is provided with a The water inlet and multiple dosing ports are provided with a water outlet at the other end; it also includes a colloid mill, the slag discharge tank is connected to the inlet end of the colloid mill through a pipeline, and the outlet of the colloid mill is connected to the first dosing barrel, and the first feeding The medicine barrel is connected to the reaction chamber through the first dosing metering pump. The present invention utilizes colloid mill to homogenize the scum, and all the scum after homogenization is reused as a phosphorus removing agent, a fluorine removing agent, a coagulant, etc., which can reduce the dosage of the agent; and the scum is reused After that, the amount of sludge was reduced.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a system and a method for recycling scum in an air floatation and sedimentation integrated machine.
Background
The air flotation and sedimentation integrated machine is mainly suitable for treating various waste water with floc specific gravity close to water after the waste water is reacted. The working principle of the air flotation and precipitation integrated machine is as follows: the reaction zone is divided into two zones, a coagulation zone and a flocculation zone. Adding agents such as a phosphorus removal agent, a fluorine removal agent or PAC (polyaluminium chloride) in the coagulation zone, uniformly mixing under the action of mechanical stirring, reacting with fluorine, phosphorus, colloidal substances and the like in water to generate alum flocs, automatically flowing into the flocculation zone, adding PAM (polyacrylamide), and slowly and uniformly stirring by using a stirrer to slowly coagulate small-particle alum flocs together to form large-particle flocs. The sewage automatically flows into the separation area, bubbles and flocs are adhered together under the action of micro bubbles, so that the pollutants float out of the water surface with the specific gravity smaller than that of water, and the flocs heavier than water sink into the mud bucket under the action of gravity and are periodically discharged into the mud concentration tank.
The slightly polluted water body is relatively clean, the pollutant concentration is low, particularly under the condition of low turbidity, the probability of particle collision is small, the reaction effect is poor, and the pollutant and the medicament can obtain an effective collision reaction chance only by adding excessive medicament to meet the requirement of discharge. Scum and sludge produced by the air floatation and sedimentation integrated machine are all treated as sludge, and excessive added medicament can be discharged along with the scum, so that the medicament is wasted, the operation cost is increased, and the sludge treatment cost is also increased.
Disclosure of Invention
The invention aims to solve the problems and provides a system and a method for recycling scum in an air floatation and sedimentation integrated machine, which can recycle scum and reduce the loss of chemicals.
Therefore, the first technical scheme of the invention is as follows: a recycling system for scum in an air floatation and sedimentation integrated machine comprises the air floatation and sedimentation integrated machine and a plurality of dosing barrels, wherein a reaction bin is arranged in the air floatation and sedimentation integrated machine, one end of the reaction bin is provided with a water inlet and a plurality of dosing ports, and the other end of the reaction bin is provided with a water outlet; the medicine adding barrel is divided into a first medicine adding barrel, a second medicine adding barrel and a third medicine adding barrel, the first medicine adding barrel, the second medicine adding barrel and the third medicine adding barrel are respectively connected to the medicine adding openings through pipelines, and flow meters are arranged on the pipelines; a slag extractor is arranged above the air floatation and sedimentation integrated machine, a slag discharging groove is arranged at the upper part of the reaction bin, and the slag discharging groove is positioned above the water outlet; the method is characterized in that: still include the colloid mill, arrange the slag chute and pass through the entrance point of tube coupling to the colloid mill, the exit linkage to first medicine bucket that adds of colloid mill, first medicine bucket is connected to the reaction bin through first medicine dosing pump.
Preferably, be equipped with the stirring subassembly in second medicine bucket and the third medicine bucket, the second adds the medicine bucket and is connected to the reaction storehouse through the second adds medicine measuring pump.
Preferably, the bottom of the air floatation and sedimentation integrated machine is provided with a mud level meter, the bottom of the air floatation and sedimentation integrated machine is also provided with a plurality of conical mud hoppers, the outlet of each conical mud hopper is provided with a discharge valve, and each mud hopper is connected to a sludge concentration tank through a sludge pump.
The second technical scheme of the invention is as follows: the method for recycling scum in the air floatation and sedimentation integrated machine comprises the following steps:
1) before the micro-polluted water enters the air floatation and precipitation integrated machine, the concentration of total phosphorus and total fluorine pollutants in the water is automatically measured on line, the water quantity of inlet water is measured on line, and the inlet water enters a reaction bin through lifting or self-flowing;
2) a phosphorus removing agent, a fluorine removing agent and/or PAC are/is placed in a second dosing barrel, the second dosing barrel is connected to the reaction bin through a second dosing metering pump, the phosphorus removing agent, the fluorine removing agent and/or the PAC agent are/is dosed into the reaction bin, and the dosing amount of the agent is automatically adjusted according to the water inlet amount, the water inlet pollutant concentration and the water outlet pollutant concentration required to be reached; stirring and mixing uniformly in the reaction bin, and reacting the medicament with pollutants in water to form small alum flocs;
3) PAM (polyacrylamide) is placed in a third medicine tank, PAM is added into a reaction bin, large-particle floc is generated after mechanical stirring reaction, the floc automatically flows into a separation zone, and after uniform water distribution, the floc floats out of the water surface under the action of micro-bubbles;
4) scum, clear liquid and suspended matters with specific gravity larger than that of water are sequentially arranged in the reaction bin from top to bottom; suspended matters with specific gravity larger than that of water are settled in a mud bucket at the bottom through sedimentation, a mud level meter is installed at the bottom of the air floatation sedimentation all-in-one machine, the sludge amount in the mud bucket is automatically controlled through the mud level meter, when the set mud level is reached, a discharge valve at the outlet of the mud bucket is automatically opened, and the suspended matters automatically flow to a sludge concentration tank through liquid level difference or are lifted to the sludge concentration tank through a sludge pump;
5) the middle clear liquid automatically flows to a clear water bin, a total phosphorus and total fluorine online monitoring instrument is installed in the clear water bin, the water quality is automatically measured, the clear liquid automatically flows to the next process section after reaching the discharge standard, and when the discharge standard is not reached, the clear liquid flows back to a water inlet at the front end of the air floatation and precipitation integrated machine and is treated again;
6) after scum is accumulated for a certain time, the scum is scraped and discharged into a scum trough at regular time by using a scum scraper, and the scum in the scum trough is completely recycled as a medicament; the outlet of the deslagging tank is connected with a colloid mill, scum enters the colloid mill, bubbles in the scum are removed by the colloid mill, the scum is homogenized, the homogenized scum enters a first dosing barrel and is automatically fed into a reaction bin by a first dosing metering pump;
7) and after the scum in the first medicine adding barrel is added into the reaction bin, the phosphorus removing agent, the fluorine removing agent and/or the PAC agent in the second medicine adding barrel are continuously added into the reaction bin, and the treatment steps are repeated.
Preferably, the pollutant removal amount is calculated according to the water inlet amount, the pollutant concentration of the inlet water and the concentration of the outlet water, the corresponding medicament adding amount is determined according to different pollutant removal amounts, and simultaneously, the adding amount of the medicament to be supplemented is determined according to the recycling amount of the scum after the scum is completely recycled.
In the invention, the scum in the air floatation and precipitation integrated machine is completely recycled, the scum is homogenized by using a colloid mill, and the homogenized scum is completely recycled and used as a phosphorus removal agent, a fluorine removal agent, a coagulant and the like, so that the adding amount of the agent can be reduced by 30%; and after the scum is recycled, the amount of sludge is reduced, the sludge treatment cost is reduced by 30%, and the direct operation cost is reduced by about 40%.
Drawings
The following detailed description is made with reference to the accompanying drawings and embodiments of the present invention
FIG. 1 is a system block diagram of the present invention.
Labeled as: the device comprises a reaction bin 1, a dissolved air tank 2, a first dosing barrel 3, a second dosing barrel 4, a third dosing barrel 5, a water inlet 6, a water outlet 7, an air inlet 8, a dosing port 9, an electromagnetic flowmeter 10, a second dosing metering pump 11, a filter 12, a mud bucket 13, a discharge valve 14, a sludge pump 15, a slag discharging machine 16, a slag discharging groove 17, a colloid mill 18, a first dosing metering pump 19 and a sludge concentration tank 20.
Detailed Description
See the drawings. The system for recycling the scum comprises an air floatation and sedimentation integrated machine, a dissolved air tank 2, a first dosing barrel 3, a second dosing barrel 4 and a third dosing barrel 5, wherein a reaction bin 1 is arranged in the air floatation and sedimentation integrated machine, a water inlet 6 is arranged at the front end of the reaction bin, a water outlet 7 is arranged at the rear end of the reaction bin, an air inlet 8 is arranged on the reaction bin, and the dissolved air tank 2 is connected to the air inlet 8 of the reaction bin through an air inlet pipeline; a plurality of dosing ports 9 are further arranged above the front end of the reaction bin, the first dosing barrel 3, the second dosing barrel 4 and the third dosing barrel 5 are respectively connected to the dosing ports 9 through dosing pipelines, and an electromagnetic flow meter 10 is arranged on the dosing pipelines and can detect dosing amount; be equipped with the stirring subassembly in second dosing bucket 4 and the third dosing bucket 5, place agents such as dephosphorization agent, defluorinating agent, PAC in the second dosing bucket, send to reaction storehouse 1 in through second dosing measuring pump 11, place PAM in the third dosing bucket, be equipped with filter 12 on the third dosing pipeline between third dosing bucket and the reaction storehouse. The bottom of the air floatation and sedimentation integrated machine is provided with a mud level meter, the bottom of the air floatation and sedimentation integrated machine is also provided with a plurality of conical mud hoppers 13, the outlet of each conical mud hopper is provided with a discharge valve 14, and each mud hopper is connected to a sludge concentration tank 20 through a sludge pump 15.
A slag extractor 16 is arranged above the air floatation and sedimentation integrated machine, a slag discharging groove 17 is arranged at the upper part of the reaction bin, and the slag discharging groove is positioned above the water outlet; still include a colloid mill 18, arrange the sediment groove 17 and be connected to the entrance point of colloid mill 18 through arranging the sediment pipeline, the export of colloid mill is connected to first dosing bucket 3, and first dosing bucket 3 is connected to reaction bin 1 through first dosing measuring pump 19. Scum in the scum discharge groove is used as a medicament for recycling, the scum discharge port is connected with the colloid mill, bubbles in the scum are discharged under the action of the colloid mill, and the scum discharge groove plays a role in homogenization.
The recycling of the scum comprises the following steps:
1) before the micro-polluted water enters the air floatation and precipitation integrated machine, the concentration of total phosphorus and total fluorine pollutants in the water is automatically measured on line, the water quantity of inlet water is measured on line, and the inlet water enters a reaction bin through lifting or self-flowing;
2) the second medicine adding barrel is internally provided with agents such as a phosphorus removing agent, a fluorine removing agent, polyaluminium chloride (PAC) and the like according to requirements, for example: if the wastewater only has the requirement of removing phosphorus, only adding a phosphorus removing agent and PAC;
if the wastewater only has the requirement of removing fluoride, only adding a fluorine removing agent and PAC;
if the wastewater only has the requirement of removing suspended matters, only adding PAC medicament;
if the wastewater has the requirements of fluorine removal and phosphorus removal at the same time, a phosphorus removal agent, a fluorine removal agent and PAC are required to be added;
the second dosing barrel is connected to the reaction bin through a second dosing metering pump, and agents such as a phosphorus removing agent, a fluorine removing agent, PAC (polyaluminium chloride) and the like are added into the reaction bin, and the adding amount of the agents is automatically adjusted according to the water inlet amount, the water inlet pollutant concentration and the water outlet pollutant concentration required to be reached; stirring and mixing uniformly in the reaction bin, and reacting the medicament with pollutants in water to form small alum flocs;
when the micro-polluted water is treated, the total fluorine is generally required to be reduced from 10mg/L to 1.5mg/L or 1mg/L, and the total phosphorus is generally required to be reduced from 1mg/L to 0.1mg/L or 0.05 mg/L; the dosage is generally excessive, and the dosage of the added medicament is determined by experiments:
in the experimental process, the pollutant removal amount is calculated according to the water inlet amount, the pollutant concentration of the inlet water and the concentration of the outlet water which needs to reach, and the corresponding medicament adding amount is determined according to different pollutant removal amounts;
3) PAM (polyacrylamide) is placed in a third medicine tank, PAM is added into a reaction bin, large-particle floc is generated after mechanical stirring reaction, the floc automatically flows into a separation zone, and after uniform water distribution, the floc floats out of the water surface under the action of micro-bubbles;
4) at the moment, scum, clear liquid and suspended matters with specific gravity larger than that of water are sequentially arranged in the reaction bin from top to bottom; suspended matters with specific gravity larger than that of water are settled in a mud bucket at the bottom through sedimentation, a mud level meter is installed at the bottom of the air floatation sedimentation all-in-one machine, the sludge amount in the mud bucket is automatically controlled through the mud level meter, when the set mud level is reached, a discharge valve at the outlet of the mud bucket is automatically opened, and the suspended matters automatically flow to a sludge concentration tank through liquid level difference or are lifted to the sludge concentration tank through a sludge pump;
5) the middle clear liquid automatically flows to a clear water bin, a total phosphorus and total fluorine online monitoring instrument is installed in the clear water bin, the water quality is automatically measured, the clear liquid automatically flows to the next process section after reaching the discharge standard, and when the discharge standard is not reached, the clear liquid flows back to a water inlet at the front end of the air floatation and precipitation integrated machine and is treated again;
6) after scum is accumulated for a certain time, the scum is scraped and discharged into a scum trough at regular time by using a scum scraper, and the scum in the scum trough is completely recycled as a medicament; the outlet of the deslagging tank is connected with a colloid mill, scum enters the colloid mill, bubbles in the scum are removed by the colloid mill, the scum is homogenized, the homogenized scum enters a first dosing barrel and is automatically fed into a reaction bin by a first dosing metering pump;
7) and after the scum in the first medicine adding barrel is added into the reaction bin, the phosphorus removing agent, the fluorine removing agent and/or the PAC agent in the second medicine adding barrel are continuously added into the reaction bin, and the treatment steps are repeated. At the moment, the removal amount of the pollutants needs to be calculated according to the water inlet amount, the pollutant concentration of the inlet water and the concentration of the outlet water which needs to be reached, the corresponding medicament adding amount is determined according to different pollutant removal amounts, and meanwhile, after all scum is recycled, the residual medicament amount in the scum is subtracted from the medicament adding amount, so that the adding amount of a new medicament which needs to be supplemented is determined.
Besides the chemical agent, part of the scum is floc, such as fluoride floc, phosphorus compound floc, suspended matter and the like, after repeated use, part of the scum can be precipitated, and the precipitated sludge is completely discharged out of a treatment facility. The chemical equivalent to fluoride, phosphate, suspended matters and part of incompletely utilized chemical are finally settled in a mud bucket at the bottom of the tank and discharged into a sludge concentration tank for treatment, and the sewage treatment effect is not influenced.
Claims (5)
1. A recycling system for scum in an air floatation and sedimentation integrated machine comprises the air floatation and sedimentation integrated machine and a plurality of dosing barrels, wherein a reaction bin is arranged in the air floatation and sedimentation integrated machine, one end of the reaction bin is provided with a water inlet and a plurality of dosing ports, and the other end of the reaction bin is provided with a water outlet; the medicine adding barrel is divided into a first medicine adding barrel, a second medicine adding barrel and a third medicine adding barrel, the first medicine adding barrel, the second medicine adding barrel and the third medicine adding barrel are respectively connected to the medicine adding openings through pipelines, and flow meters are arranged on the pipelines; a slag extractor is arranged above the air floatation and sedimentation integrated machine, a slag discharging groove is arranged at the upper part of the reaction bin, and the slag discharging groove is positioned above the water outlet; the method is characterized in that: still include the colloid mill, arrange the entrance point that the sediment groove passes through pipe connection to the colloid mill, the exit linkage to first medicine bucket that adds of colloid mill, first medicine bucket is connected to the reaction bin through first medicine pump that adds.
2. The recycling system of scum in an air flotation precipitation all-in-one machine as claimed in claim 1, wherein: and stirring assemblies are arranged in the second dosing barrel and the third dosing barrel, and the second dosing barrel is connected to the reaction bin through a second dosing pump.
3. The recycling system of scum in an air flotation precipitation all-in-one machine as claimed in claim 1, wherein: the bottom of the air floatation and sedimentation integrated machine is provided with a mud level meter, the bottom of the air floatation and sedimentation integrated machine is also provided with a plurality of conical mud hoppers, the outlet of each conical mud hopper is provided with a discharge valve, and each mud hopper is connected to a sludge concentration tank through a sludge pump.
4. The method for recycling the scum in the air floatation and precipitation integrated machine is characterized by comprising the following steps of: use of a system according to any of claims 1 to 3, comprising the steps of:
1) before the micro-polluted water enters the air floatation and precipitation integrated machine, the concentration of total phosphorus and total fluorine pollutants in the water is automatically measured on line, the water quantity of inlet water is measured on line, and the inlet water enters a reaction bin through lifting or self-flowing;
2) a phosphorus removing agent, a fluorine removing agent and/or PAC are/is placed in a second dosing barrel, the second dosing barrel is connected to the reaction bin through a second dosing pump, the phosphorus removing agent, the fluorine removing agent and/or the PAC agent are/is dosed into the reaction bin, and the dosing amount of the agent is automatically adjusted according to the water inlet amount, the pollutant concentration of inlet water and the pollutant concentration required to be reached by outlet water; stirring and mixing uniformly in the reaction bin, and reacting the medicament with pollutants in water to form alum floc;
3) PAM (polyacrylamide) is placed in a third medicine tank, PAM is added into a reaction bin, large-particle floc is generated after mechanical stirring reaction, the floc automatically flows into a separation zone, and after uniform water distribution, the floc floats out of the water surface under the action of micro-bubbles;
4) scum, clear liquid and suspended matters with specific gravity larger than that of water are sequentially arranged in the reaction bin from top to bottom; suspended matters with specific gravity larger than that of water are settled in a mud bucket at the bottom through sedimentation, a mud level meter is installed at the bottom of the air floatation sedimentation all-in-one machine, the sludge amount in the mud bucket is automatically controlled through the mud level meter, when the set mud level is reached, a discharge valve at the outlet of the mud bucket is automatically opened, and the suspended matters automatically flow to a sludge concentration tank through liquid level difference or are lifted to the sludge concentration tank through a sludge pump;
5) the middle clear liquid automatically flows to a clear water bin, a total phosphorus and total fluorine online monitoring instrument is installed in the clear water bin, the water quality is automatically measured, the clear liquid automatically flows to the next process section after reaching the discharge standard, and when the discharge standard is not reached, the clear liquid flows back to a water inlet at the front end of the air floatation and precipitation integrated machine and is treated again;
6) after scum is accumulated for a certain time, the scum is scraped and discharged into a scum trough at regular time by using a scum scraper, and the scum in the scum trough is completely recycled as a medicament; the outlet of the deslagging tank is connected with a colloid mill, scum enters the colloid mill, bubbles in the scum are removed by the colloid mill, the scum is homogenized, the homogenized scum enters a first dosing barrel and is automatically fed into a reaction bin by a first dosing pump;
7) and after the scum in the first medicine adding barrel is added into the reaction bin, the phosphorus removing agent, the fluorine removing agent and/or the PAC agent in the second medicine adding barrel are continuously added into the reaction bin, and the treatment steps are repeated.
5. The recycling method of scum in an air flotation precipitation all-in-one machine as claimed in claim 4, wherein: the removal amount of the pollutants is calculated according to the water inlet amount, the pollutant concentration of the inlet water and the concentration of the outlet water, the corresponding medicament adding amount is determined according to different pollutant removal amounts, and simultaneously, after all scum is recycled, the adding amount of the medicament to be supplemented is determined according to the recycling amount of the scum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111281692.8A CN114014459A (en) | 2021-11-01 | 2021-11-01 | System and method for recycling scum in air flotation and sedimentation integrated machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111281692.8A CN114014459A (en) | 2021-11-01 | 2021-11-01 | System and method for recycling scum in air flotation and sedimentation integrated machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114014459A true CN114014459A (en) | 2022-02-08 |
Family
ID=80059436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111281692.8A Withdrawn CN114014459A (en) | 2021-11-01 | 2021-11-01 | System and method for recycling scum in air flotation and sedimentation integrated machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114014459A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024251888A1 (en) * | 2023-06-07 | 2024-12-12 | Suez International | Process and plant for treating water by flotation incorporating a pollutant retention system |
| WO2024251886A1 (en) * | 2023-06-07 | 2024-12-12 | Suez International | Process and plant for treating water by flotation with recirculation of the floating phase |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60896A (en) * | 1983-06-17 | 1985-01-05 | Ebara Infilco Co Ltd | Treating process for night soil |
| JPH07124549A (en) * | 1993-11-02 | 1995-05-16 | Kazutoyo Sugihara | Purifying apparatus |
| CN1245845A (en) * | 1999-07-01 | 2000-03-01 | 尤俊洪 | Closed control method of paper-making waste water |
| CN1300718A (en) * | 1999-12-23 | 2001-06-27 | 雷恒毅 | Process for clarifying waste water difficult to degradate |
| JP2002113471A (en) * | 2000-10-10 | 2002-04-16 | Ebara Corp | Method and equipment for coagulating and floating separation |
| CN103466768A (en) * | 2013-09-18 | 2013-12-25 | 北京大学 | Floc reflux coagulation process for treating biochemical printing and dyeing effluent |
| CN111285456A (en) * | 2020-03-10 | 2020-06-16 | 南昌航空大学 | Annular aeration coagulation device suitable for treating micro-polluted water |
-
2021
- 2021-11-01 CN CN202111281692.8A patent/CN114014459A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60896A (en) * | 1983-06-17 | 1985-01-05 | Ebara Infilco Co Ltd | Treating process for night soil |
| JPH07124549A (en) * | 1993-11-02 | 1995-05-16 | Kazutoyo Sugihara | Purifying apparatus |
| CN1245845A (en) * | 1999-07-01 | 2000-03-01 | 尤俊洪 | Closed control method of paper-making waste water |
| CN1300718A (en) * | 1999-12-23 | 2001-06-27 | 雷恒毅 | Process for clarifying waste water difficult to degradate |
| JP2002113471A (en) * | 2000-10-10 | 2002-04-16 | Ebara Corp | Method and equipment for coagulating and floating separation |
| CN103466768A (en) * | 2013-09-18 | 2013-12-25 | 北京大学 | Floc reflux coagulation process for treating biochemical printing and dyeing effluent |
| CN111285456A (en) * | 2020-03-10 | 2020-06-16 | 南昌航空大学 | Annular aeration coagulation device suitable for treating micro-polluted water |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024251888A1 (en) * | 2023-06-07 | 2024-12-12 | Suez International | Process and plant for treating water by flotation incorporating a pollutant retention system |
| WO2024251886A1 (en) * | 2023-06-07 | 2024-12-12 | Suez International | Process and plant for treating water by flotation with recirculation of the floating phase |
| FR3149606A1 (en) * | 2023-06-07 | 2024-12-13 | Suez International | Process and installation for water treatment by flotation with recirculation of the floating phase |
| FR3149605A1 (en) * | 2023-06-07 | 2024-12-13 | Suez International | Process and installation for water treatment by flotation integrating a pollutant retention system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11286188B2 (en) | Automated wastewater treatment system and methods | |
| RU2475457C2 (en) | Method and device for water treatment | |
| JPH03137988A (en) | Method and device for removing hexavalent chromium from water | |
| CN110678244B (en) | High-efficiency sedimentation and floatation system integrating sedimentation and floatation separation processes and driving method thereof | |
| CN218755199U (en) | Automatic dosing control system for coal washing water treatment process | |
| CN116040833A (en) | High-concentration fluorine-containing wastewater unit coupling deep purification system and technology | |
| CN114014459A (en) | System and method for recycling scum in air flotation and sedimentation integrated machine | |
| CN112321029A (en) | A continuous casting turbid ring water treatment system and process | |
| JP2005046787A (en) | Flocculation and separation apparatus | |
| CN111592128A (en) | Near water source (ecological) protection area tunnel construction waste water treatment complete equipment | |
| KR102134859B1 (en) | Water Treatment Device with The Internal Circulation of Sorting Sedimented Sludge | |
| CN211170214U (en) | Industrial wastewater integrated treatment equipment | |
| CN219839539U (en) | Intelligent fine separation system | |
| CN218755326U (en) | High concentration fluorine-containing wastewater unit coupling deep purification system | |
| CN113461228B (en) | System and method for treating acidic wastewater by mud method | |
| CN109678298A (en) | A kind of comprehensive integration sewage-treatment plant | |
| CN213834816U (en) | Fracturing flow-back fluid pretreatment device | |
| CN212127807U (en) | A decalcification system for papermaking sewage | |
| CN206955866U (en) | RO pre-treatment system | |
| CN211141582U (en) | Air-floating separation equipment and limit dephosphorization system carrying same | |
| RU2688619C1 (en) | Method and apparatus for treating water | |
| KR20010055004A (en) | Apparatus for removing sludge by floating of sludge in a settling tank | |
| CN111995114A (en) | Coal gasification black ash water treatment method and treatment system | |
| CN110776150A (en) | Industrial wastewater integrated treatment equipment | |
| CN219823894U (en) | Intelligent coarse separation system |
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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220208 |
|
| WW01 | Invention patent application withdrawn after publication |