CN202881052U - Device for removing phosphorus chemically and forcibly by adopting A2O, membrane separation and cloth filter filtering - Google Patents
Device for removing phosphorus chemically and forcibly by adopting A2O, membrane separation and cloth filter filtering Download PDFInfo
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- CN202881052U CN202881052U CN 201220535206 CN201220535206U CN202881052U CN 202881052 U CN202881052 U CN 202881052U CN 201220535206 CN201220535206 CN 201220535206 CN 201220535206 U CN201220535206 U CN 201220535206U CN 202881052 U CN202881052 U CN 202881052U
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Abstract
The utility model discloses a device for removing phosphorus chemically and forcibly by adopting A2O, membrane separation and cloth filter filtering. The device is characterized by comprising a water tank, a raw-water pump, a biological phosphorus removal part, a membrane separation part, a medicament addition system and a sludge-water separation part which are connected in sequence; the biological phosphorus removal part comprises an anaerobic tank, an anoxic tank and an aerobic tank which are connected in sequence; the sludge-water separation part is a cloth filter; and the medicament addition system is arranged on a pipe between the membrane separation part and the sludge-water separation part. Due to the adoption of the device disclosed by the utility model, a sewage treatment plant with synchronous nitrogen and phosphorus removal requirements and an original A2O process based sewage treatment plant can be upgraded and rebuilt, the addition amount of a chemical agent and the amount of sludge can be reduced, the TP (total phosphorus) in the effluent can reach the level A of the Discharge Standard of Pollutants for Municipal Sewage Treatment Plant (GB18918-2002), and the technological flow can be shortened effectively. The device occupies a small floor area.
Description
Technical field
The utility model relates to water treatment field, particularly a kind of chemical enhanced dephosphorization apparatus that filters based on A2O-membrane sepn-filtering cloth filtering pool.
Background technology
The following two kinds of methods of the normal employing for the treatment of of Phosphorus Containing Waste Water technique: the biological dephosphorization that (1) is economic, it utilizes the polyP bacteria anaerobic phosphorus release, and the characteristic of aerobic suction phosphorus reaches the purpose of dephosphorization; (2) efficient chemical dephosphorization method is removed by adding the chemical agents generation compounds of phosphorus precipitations such as molysite, aluminium salt.
The A2O synchronous denitrogen dephosphorus technology has the advantages such as good synchronous denitrification dephosphorizing effect and low working cost, and this technology is widely used in many countries and area at present.This technology utilizes polyP bacteria alternately to release phosphorus and excessive suction phosphorus in the anaerobic-anoxic-oxic process, and reaches the effect of dephosphorization by getting rid of excess sludge.Owing to being subjected to the impact of dissolved oxygen, BOD5/TP, NOX-N, sludge age etc., denitrogenation and dephosphorization process condition are conflicting to a certain extent, make water outlet total phosphorus (TP) be difficult to stable " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) the one-level A standard (TP≤0.5mg/L) that satisfies.Therefore, often the chemical process reinforced phosphor-removing need be set.The secondary sedimentation basins water outlet contains suspended substance, and added amount of chemical is increased, and the sludge creation amount is large.
Membrane sepn is a kind of novel isolation technique, and this technology is widely used in water treatment.Membrane separation technique and biologic treating technique organically combine and are called membrane bioreactor, and its membrane module replaces the terminal second pond of traditional biological treatment technology, and this reactor can be used water suspension and turbidity close to zero.
Sewage adds chemical dephosphorization after A2O and the processing of membrane sepn combination process, at first utilize the biological phosphate-eliminating method to reduce the concentration of phosphorus, and next utilizes membrane separation technique to reduce water outlet SS, thereby has reduced the chemical dephosphorization added amount of chemical, so that sludge reduction.
Because often to face the usable land area limited in sewage work, also need consider to reduce investment outlay and the problem such as working cost.Therefore, need after the chemical enhanced dephosphorization to phosphorous chemical sludge carry out effective separation, occupation area of equipment should be tried one's best little and be complementary with existing technique.
Filtering cloth filtering pool is a kind of advanced person's middle water filtration technology, has precipitation and filteration.Compare with traditional solid-liquid separation technique, have equipment and take up an area little (only being conventional rapid filter 1/4), filter effluent quality good (can realize water outlet SS≤5mg/L, turbidity≤0.5-2NTU), working cost is low, but the advantages such as continuous filtration.This filtering cloth filtering pool mainly is comprised of fiber filter cloth, the main that catchments, mobile suction pipe, mud drainage slot etc.
Summary of the invention
The biological process dephosphorization is unstable in order to solve, medicament and sludge reduction with effectively carry out the problem that phosphorous chemical sludge separates, taking into account does not simultaneously increase more cost, the utility model provides a kind of chemical enhanced dephosphorization apparatus that filters based on A2O-membrane sepn-filtering cloth filtering pool, reduce dosage with A2O technique binding film isolation technique, realize the suspended substance load of sludge reduction and reduction filtering cloth filtering pool; With the filtering cloth filtering pool filtering technique phosphorous chemical sludge is carried out effective separation, effectively reduces occupation area of equipment.
For achieving the above object, the technical scheme that the utility model proposes is: based on the chemical enhanced dephosphorization apparatus of A2O-membrane sepn-filtering cloth filtering pool filtration, it is characterized in that: comprise the water tank, raw water pump, biological phosphate-eliminating part, membrane sepn part, medicine system and the mud-water separation part that connect successively, described biological phosphate-eliminating partly comprises anaerobic pond, anoxic pond, the Aerobic Pond that connects successively, described mud-water separation partly is filtering cloth filtering pool, and described medicine system is located on the pipeline between membrane sepn part and mud-water separation part.
Further, described medicine system comprises chemicals dosing plant and line mixer.
Further, described membrane sepn part can be microfiltration membrane tripping device, ultrafiltration membrane separating device or membrane bioreactor.
Further, the preferred curtain type film assembly of membrane module in the described membrane bioreactor.
Further, the medicament in the described chemicals dosing plant is molysite (iron(ic) chloride, ferrous sulfate etc.) or aluminium salt (Tai-Ace S 150, PAC etc.).
Further, filter cloth is the ion fiber filter cloth in the described filtering cloth filtering pool.
Further, described filtering cloth filtering pool comprises the pond body, body bottom, pond is provided with a water-in, an evacuation port, body top, pond is provided with a water outlet and a mud discharging mouth, described pond body is provided with the ion fiber filter cloth, be provided with a suction pipe in the described ion fiber filter cloth, described suction pipe links to each other with sludge pump, traveling motor.
The method that adopts the chemical enhanced dephosphorization apparatus that filters based on A2O-membrane sepn-filtering cloth filtering pool described in the utility model to be used for chemical dephosphorization is: the sewage of sewage after anaerobic pond, anoxic pond, Aerobic Pond are processed flows into membrane cisterna and carries out membrane sepn, the product water of membrane sepn by chemicals dosing plant for adding medicament, enter filtering cloth filtering pool after line mixer fully mixes and filter, reach the purpose of removing phosphorous chemical sludge.
Adopt above technical scheme, the chemical enhanced dephosphorization apparatus that filters based on A2O-membrane sepn-filtering cloth filtering pool that the utility model provides can be applicable to the upgrading of sewage work that synchronous denitrification dephosphorizing requires and original A2O process spent water treatment plant, reduce dosage and the sludge quantity of chemical agent, make water outlet TP satisfy " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level A standard, and effective shortened process, minimizing occupation area of equipment and added amount of chemical.
Description of drawings
Fig. 1 is the described chemical enhanced dephosphorization apparatus schematic diagram of the utility model device;
Fig. 2 is filtering cloth filtering pool cell schematics in the utility model device;
Fig. 3 is that the PAC dosage is the Inlet and outlet water TP concentration of 60mg/L;
Fig. 4 is that the strong dosage of Tai-Ace S 150 is the Inlet and outlet water TP concentration of 30mg/L;
Wherein: 1. water tank, 2. raw water pump, 3. anaerobic pond, 4. anoxic pond, 5. Aerobic Pond, 6. membrane bioreactor, 7. agitator, 8. aerating apparatus, 9. curtain type film assembly, 10. suction pump, 11. molten medicine-chests, 12. dosing pumps, 13. line mixers, 14. filtering cloth filtering pools, 15. water-ins, 16. water outlets, 17. sludge pumps, 18. traveling motors, 19. ion fiber filter clothes, 20. mud discharging mouths, 21. evacuation ports, 22. pond bodies, 23. suction pipes.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figure 1, chemical enhanced dephosphorization apparatus based on A2O-membrane sepn-filtering cloth filtering pool filtration, comprise the water tank 1 that connects successively, raw water pump 2, anaerobic pond 3, anoxic pond 4, Aerobic Pond 5, membrane bioreactor 6, medicine system and filtering cloth filtering pool 13, medicine system is located on the pipeline of 13 of membrane bioreactor 6 and filtering cloth filtering pools, anaerobic pond 3, anoxic pond 4 is provided with agitator 7, Aerobic Pond 5, membrane bioreactor 6 is provided with aerating apparatus 8, membrane module in the membrane bioreactor 6 is curtain type film assembly 9, the water producing pipe road of membrane bioreactor links to each other in filtering cloth filtering pool, and the filter cloth in the filtering cloth filtering pool 14 is ion fiber filter cloth 19.
Further, the water producing pipe road is provided with suction pump 10, and medicine system comprises chemicals dosing plant and line mixer 13, and chemicals dosing plant comprises molten medicine-chest 11, dosing pump 12, and links to each other with the water producing pipe road by drug feeding pipeline.Medicament in the chemicals dosing plant is molysite (iron(ic) chloride, ferrous sulfate etc.) or aluminium salt (Tai-Ace S 150, PAC etc.).
As shown in Figure 2, filtering cloth filtering pool 14 comprises pond body 22, body 22 bottoms in pond are provided with a water-in 15, an evacuation port 21, body 22 tops in pond are provided with a water outlet 16 and a mud discharging mouth 20, pond body 16 is provided with ion fiber filter cloth 19, be provided with a suction pipe 23 in the ion fiber filter cloth 19, suction pipe 23 links to each other with sludge pump 17, traveling motor 18.
During concrete the use, raw water pump 2 is squeezed into the sewage in the water tank 1 in the biochemical treatment system, effluent stream is through anaerobic pond 3, anoxic pond 4, after processing, Aerobic Pond 5 enters membrane bioreactor 6, wherein stir with 7 pairs of anaerobic ponds 3 of stirrer and anoxic pond 4, carry out aeration and the curtain type film assembly 9 in the membrane bioreactor 8 is purged with 8 pairs of Aerobic Ponds of aerating apparatus, dosing pump 12 is squeezed into aluminium salt or iron salt solutions in the molten medicine-chest 11 in the pipeline after membrane bioreactor 8 water outlet suction pumps 10 suction, medicament fully mixes by water-in 15 through line mixer 13 with water outlet and enters filtering cloth filtering pool 14, phosphorous chemical sludge is removed, and water purification is discharged from water outlet 16.Along with filtration is carried out, suspended substance is used the water head in the accumulation of filter cloth surface and is risen, and rises gradually in the pool inner water position, after water level arrives the predetermined position, begin to start sludge pump 17 negative pressure-pumping back flushinges, traveling motor 18 moves and filter cloth 19 maintains static, and muddy water is discharged through mud discharging mouth 20.
Embodiment 1
The equalizing tank water outlet of water Treatment for Reuse station is as former water in the Xiamen University, influent COD, ammonia nitrogen and total phosphorus value (COD=100-400mg/L, NH4+-N=10-50mg/L, TP=1.5-2.5mg/L).The hydraulic detention time of anaerobism, anoxic and aerobic zone (HRT) is respectively 1h, 1h and 3h, reflux ratio is 100%, film scavenging air amount is 120Nm3/ (m2 h), the membrane bioreactor water outlet selects PAC as the reinforced phosphor-removing medicament, dosage is 60mg/L, it is 5m3/m2 h that filtering cloth filtering pool is selected filtering velocity, and this device water inlet TP and each unit water outlet TP are as shown in Figure 3.
Can be drawn by embodiment 1,2, after carrying out chemical enhanced dephosphorization and process by this device, the water outlet total phosphorus (TP) that produces water significantly reduces (TP≤0.5mg/L), so water outlet total phosphorus (TP) can reach " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level A standard (TP≤0.5mg/L).
The present embodiment membrane sepn part is take membrane bioreactor as example, as required also can the microfiltration membrane tripping device, ultrafiltration membrane separating device.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; within not breaking away from the spirit and scope of the present utility model that appended claims limits; in the form and details the utility model is made a variety of changes, be protection domain of the present utility model.
Claims (8)
1. the chemical enhanced dephosphorization apparatus that filters based on A2O-membrane sepn-filtering cloth filtering pool, it is characterized in that: comprise the water tank, raw water pump, biological phosphate-eliminating part, membrane sepn part, medicine system and the mud-water separation part that connect successively, described biological phosphate-eliminating partly comprises anaerobic pond, anoxic pond, the Aerobic Pond that connects successively, described mud-water separation partly is filtering cloth filtering pool, and described medicine system is located on the pipeline between membrane sepn part and mud-water separation part.
2. the chemical enhanced dephosphorization apparatus that filters based on A2O-membrane sepn-filtering cloth filtering pool according to claim 1, it is characterized in that: described medicine system comprises chemicals dosing plant and line mixer.
3. the chemical enhanced dephosphorization apparatus that filters based on A2O-membrane sepn-filtering cloth filtering pool according to claim 1, it is characterized in that: described chemicals dosing plant comprises the drug feeding pipeline that is connected with the water producing pipe road, drug feeding pipeline is provided with a dosing pump, molten medicine-chest.
4. the chemical enhanced dephosphorization apparatus that filters based on A2O-membrane sepn-filtering cloth filtering pool according to claim 1, it is characterized in that: described membrane sepn partly is microfiltration membrane tripping device, ultrafiltration membrane separating device or membrane bioreactor.
5. the chemical enhanced dephosphorization apparatus that filters based on A2O-membrane sepn-filtering cloth filtering pool according to claim 1, it is characterized in that: the membrane module in the described membrane bioreactor is curtain type film assembly.
6. the chemical enhanced dephosphorization apparatus that filters based on A2O-membrane sepn-filtering cloth filtering pool according to claim 1, it is characterized in that: the medicament in the described chemicals dosing plant is molysite or aluminium salt.
7. the described chemical enhanced dephosphorization apparatus that filters based on A2O-membrane sepn-filtering cloth filtering pool of arbitrary claim according to claim 1-6, it is characterized in that: filter cloth is the ion fiber filter cloth in the described filtering cloth filtering pool.
8. the described chemical enhanced dephosphorization apparatus that filters based on A2O-membrane sepn-filtering cloth filtering pool of arbitrary claim according to claim 1-6, it is characterized in that: described filtering cloth filtering pool comprises the pond body, body bottom, pond is provided with a water-in, an evacuation port, body top, pond is provided with a water outlet and a mud discharging mouth, described pond body is provided with the ion fiber filter cloth, be provided with a suction pipe in the described ion fiber filter cloth, described suction pipe links to each other with sludge pump, traveling motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220535206 CN202881052U (en) | 2012-10-18 | 2012-10-18 | Device for removing phosphorus chemically and forcibly by adopting A2O, membrane separation and cloth filter filtering |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220535206 CN202881052U (en) | 2012-10-18 | 2012-10-18 | Device for removing phosphorus chemically and forcibly by adopting A2O, membrane separation and cloth filter filtering |
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| CN202881052U true CN202881052U (en) | 2013-04-17 |
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| CN 201220535206 Expired - Lifetime CN202881052U (en) | 2012-10-18 | 2012-10-18 | Device for removing phosphorus chemically and forcibly by adopting A2O, membrane separation and cloth filter filtering |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103936231A (en) * | 2014-04-29 | 2014-07-23 | 广州市市政工程设计研究院 | Energy-saving type inverted AAO-MBR (anaerobic/anoxic/oxic-membrane bioreactor) sewage treatment method |
| CN104445840A (en) * | 2014-12-30 | 2015-03-25 | 中国市政工程华北设计研究总院有限公司 | A2/O-MBR composite processing system and method based on efficient utilization of carbon source |
| CN105923923A (en) * | 2016-06-24 | 2016-09-07 | 成都孚华环保科技有限公司 | Three-dimensional biological rotating disk A-RBC sewage treating process |
| CN109485211A (en) * | 2019-01-22 | 2019-03-19 | 北京博鑫精陶环保科技有限公司 | Sewage disposal system and sewage treatment process |
| CN112125471A (en) * | 2020-09-17 | 2020-12-25 | 广东粤海水务股份有限公司 | Online phosphorus removal device and method for sewage treatment |
-
2012
- 2012-10-18 CN CN 201220535206 patent/CN202881052U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103936231A (en) * | 2014-04-29 | 2014-07-23 | 广州市市政工程设计研究院 | Energy-saving type inverted AAO-MBR (anaerobic/anoxic/oxic-membrane bioreactor) sewage treatment method |
| CN103936231B (en) * | 2014-04-29 | 2016-03-30 | 广州市市政工程设计研究总院 | A kind of energy-saving inversion A AO-MBR sewage water treatment method |
| CN104445840A (en) * | 2014-12-30 | 2015-03-25 | 中国市政工程华北设计研究总院有限公司 | A2/O-MBR composite processing system and method based on efficient utilization of carbon source |
| CN105923923A (en) * | 2016-06-24 | 2016-09-07 | 成都孚华环保科技有限公司 | Three-dimensional biological rotating disk A-RBC sewage treating process |
| CN109485211A (en) * | 2019-01-22 | 2019-03-19 | 北京博鑫精陶环保科技有限公司 | Sewage disposal system and sewage treatment process |
| CN112125471A (en) * | 2020-09-17 | 2020-12-25 | 广东粤海水务股份有限公司 | Online phosphorus removal device and method for sewage treatment |
| CN112125471B (en) * | 2020-09-17 | 2024-05-28 | 广东粤海水务股份有限公司 | Online dephosphorization device and method for sewage treatment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Siming District of Xiamen city in Fujian province after the 361004 Dai Xi Road No. 28 building 28 floor huangtech Patentee after: CUE Co.,Ltd. Address before: Siming District of Xiamen city in Fujian province after the 361004 Dai Xi Road No. 28 building 28 floor huangtech Patentee before: CHINA UNION ENGINEERING Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130417 |
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| CX01 | Expiry of patent term |