CN106242002A - A kind of modified model reinforced phosphor-removing device and dephosphorization process - Google Patents
A kind of modified model reinforced phosphor-removing device and dephosphorization process Download PDFInfo
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- CN106242002A CN106242002A CN201610911333.9A CN201610911333A CN106242002A CN 106242002 A CN106242002 A CN 106242002A CN 201610911333 A CN201610911333 A CN 201610911333A CN 106242002 A CN106242002 A CN 106242002A
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- mud
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- 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
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- 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
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- Environmental & Geological Engineering (AREA)
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- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention belongs to advanced treatment of wastewater technical field, be specifically related to a kind of modified model reinforced phosphor-removing device and dephosphorization process.Present invention process is mainly used in water outlet phosphorus concentration situation the most up to standard after biologic process for treating sewage, by entering interpolation Dephosphorization reagent in water to second pond, enhanced flocculation dephosphorization, and swash plate or inclined tube are set in sedimentation tank, complete in the mud-water separation of biochemistry pool water outlet and flocculation dephosphorization are incorporated into same pond, improve deposition efficiency and outlet effect.The present invention is applicable to deep phosphorous removal requirement after biological treatment, improves effluent quality standard, reduces Sewage Plant investment cost.
Description
Technical field
The invention belongs to advanced treatment of wastewater technical field, be specifically related to a kind of modified model reinforced phosphor-removing device and dephosphorization work
Skill.
Background technology
At present, the method that wastewater treatment in China dephosphorization uses is broadly divided into biology, physics and chemical method.Wherein chemical method is adopted
With adding the mode of medicament, owing to the composition transfer of sewage is relatively big, it is difficult to determine dosage.Physical method mainly use add mixed
Solidifying agent and flocculation aid, formed bigger containing dirty granule in water, discharged it by sedimentation tank, and this kind of method clearance is relatively low,
And go out water unstable.The existing main employing biological method AAO(Anaerobic-Anoxic-Oxic of China) synchronous denitrification dephosphorizing
Technology.
The AAO synchronous denitrification dephosphorizing technology that China's Sewage Plant mainly uses, makes sewage flow successively through anaerobic zone, anoxic zone
And aerobic zone, the polyP bacteria in sewage, under anaerobic state, discharges phosphorus, again by its more absorptions under good oxygen condition, with surplus
The form of remaining mud discharges system.Sewage carries out mud-water separation at inflow second pond after AAO reaction tank, and a part of mud returns
It flow to reaction tank.The difficult raising of the method phosphor-removing effect, mud increases certain limit, is difficult to improve, and particularly P/BOD value is high
Time become apparent from.Secondary clarifier effluent phosphorus concentration now is wayward, the water outlet phosphorus concentration situation higher than national standard easily occurs.
Secondary effluent need to be carried out advanced treating.
When carrying out advanced treating, secondary clarifier effluent phosphorus concentration is higher than discharging standards, need to set up dephosphorization facility such as filter
Cloth filter tank or add medicament, but add medicament and need to separately set sedimentation tank, the part load to be dealt with of advanced treating is the lowest, puts into
Operating cost is the biggest.
The second pond that China is used at present is commonly Radial Flow Secondary Sedimentation Tank, and Main Function is to realize mud-water separation, backflow
Partial sludge, is simultaneously introduced a small amount of PAC aluminium polychlorid, removes a small amount of phosphorus.Therefore, for existing Sewage Plant ruuning situation, need
Second pond effect to be changed is single, improves tp removal rate.
Summary of the invention
The problem existed for prior art, the present invention provides a kind of modified model reinforced phosphor-removing device and dephosphorization process, mesh
Be the structure by changing second pond, Radial Flow Secondary Sedimentation Tank increases swash plate inclined tube and chemical feed pipe, is realizing mud-water separation
While improve the clearance of phosphorus, complete the task that post depth processes, reduce advanced treating load, or replace advanced treating.
The modified model reinforced phosphor-removing device realizing the object of the invention is Radial Flow Secondary Sedimentation Tank, by coagulation district, settling zone, water outlet
District and sludge discharging area composition；Wherein said coagulation district is made up of water inlet pipe and annular coagulation gallery, and water inlet pipe is arranged on second pond
Sidewall, connects with annular coagulation gallery, and annular coagulation gallery top is provided with drug tube, and bottom slope is 10 ~ 15%, in annular
It is provided with perforation tracery wall at coagulation gallery tail end 1/3；
Described settling zone is adjacent with coagulation district, is made up of the heavy settling zone of lower floor and the swash plate on upper strata or tube settling district,
Wherein swash plate or the swash plate in tube settling district or inclined tube height are 1 ~ 1.2m, and swash plate or inclined tube placed angle are to press from both sides with horizontal direction
Angle is 55 ~ 60 °, and swash plate spacing or inclined tube aperture are 70 ~ 90mm, solid loading≤190kg/ (m2D), water inlet is led to from bottom to top
Cross swash plate or inclined tube；
Described exhalant region is positioned at above swash plate or the swash plate in tube settling district or inclined tube, including two annular collecting vats, annular
Water leg is connected with outlet pipe；
Described sludge discharging area is positioned at bottom second pond, is provided with by the mud scraping truss of driven by motor, is scraped by base sludge to storage mud
Bucket is also discharged by the discharge pipeline bottom second pond.
Wherein, described coagulation district volume according to flow of inlet water, mud mixture containing phosphorus concentration and add pharmaceutical quantities and determine,
Specifically according to formula: V=(0.05 ~ 0.25) Q, wherein V: coagulation district volume, m3, entering of Q: mud mixture
Discharge, m3/ h, C: mud mixture containing phosphorus concentration (PO4 3-), mg/L, a: medicament delivery amount, mg/h, i.e. unit interval throw
Add confection amount, and 0≤| Qc-a |≤2.
Described storage bucket volume is the 5% of settling zone total measurement (volume).
The technique using above-mentioned modified model reinforced phosphor-removing device dephosphorization, follows the steps below:
(1) by the mud mixture of the sewage after Biochemical method in the coagulation district of second pond sent into by flow pipe, water inlet
Flow velocity is 0.8 ~ 1.0m/s, by drug tube to coagulation district addition dephosphorization composite drug, mixed flocculation in annular coagulation gallery
And plug-flow advances, it is 0.3 ~ 0.4m/s to annular coagulation gallery tail end flow velocity, enters settling zone from tracery wall；
(2) in settling zone, under gravity, first heavy impurity be deposited at the bottom of pond, and the little floc particle of proportion is with water
Flowing in slowly rising, until swash plate or tube settling district, floc particle is deposited in swash plate or inclined tube, it is achieved mud-water separation, tiltedly
On plate or inclined tube, the floc sludge of the sinking landing of accumulation inversely contacts with the pastille mud mixture of entrance in heavy settling zone,
Strengthen mud-water separation further；
(3) phosphorus containing sludge precipitated through settling zone mud-water separation, is scraped to storage bucket by mud scraping truss and discharges through discharge pipeline,
And the clear water after mud-water separation flows into outlet pipe by annular collecting vat stream, water outlet phosphorus concentration reaches country's discharge mark after testing
Accurate.
Wherein, described dephosphorization composite drug by weight percentage, by Polyferric Sulfate Flocculants 15%, aluminium polychlorid
10%, crystallization reaction medicament magnesium sulfate 25%, calcium chloride 25%, as the quartz sand 2% of nucleus, magnetic iron ore 3%, tobermorite 3%,
Bone black 5%, montmorillonite 5%, flocculation aid polyacrylamide 2%, dicyandiamide yuban 5% form.
Compared with prior art, the feature of the present invention and providing the benefit that:
The modified model reinforced phosphor-removing device of the present invention is the improvement made on existing Radial Flow Secondary Sedimentation Tank architecture basics, and two sink
The coagulation district in pond is positioned at the outer ring of whole second pond, and its volume contains phosphorus concentration according to flow of inlet water, mud mixture and adds medicine
Dosage determines, uses heavy grade design at the bottom of coagulation district annular gallery, and the mud mixture to be sunk after biological treatment adds dephosphorization agent
Rear plug-flow advances, by change in flow and cell body slope change, enhanced coagulation effect；The main task of settling zone is to utilize gravity
Realizing tradition second pond mud-water separation, upper strata is swash plate or tube settling region, and water inlet is from bottom to top by swash plate inclined tube；Spoil disposal
District is positioned at bottom second pond, the phosphorus containing sludge that Main Function is previously stored mud-water separation in settling zone and precipitates；Exhalant region is positioned at
Swash plate or top, tube settling district, the clear water realizing mud-water separation in settling zone is flowed out by water leg, enters out inflow water outlet
Pipe.
The modified model reinforced phosphor-removing device of the present invention achieves and precipitates carry out collaborative with dephosphorization, improves happy treatment effeciency, no
Process structures reconstructed by needs, reduce Civil Cost；The present invention, by arranging swash plate or inclined tube in second pond, adds
Settling zone surface loading, improves disposal ability and deposition efficiency；The coagulation district of the present invention uses heavy grade annular plug-flow gallery, has
Help improve coagulation effect.
Present invention process is mainly used in water outlet phosphorus concentration situation the most up to standard after biologic process for treating sewage, by sinking to two
Pond enters interpolation Dephosphorization reagent, enhanced flocculation dephosphorization in water, and arranges swash plate or inclined tube in sedimentation tank, by biochemistry pool water outlet
Mud-water separation and flocculation dephosphorization complete in being incorporated into same pond, improve deposition efficiency and outlet effect.The present invention be applicable to through
Deep phosphorous removal requirement after biological treatment, improves effluent quality standard, reduces Sewage Plant investment cost.
Accompanying drawing explanation
Fig. 1 is the modified model reinforced phosphor-removing device concrete structure schematic diagram of the present invention；
Fig. 2 is the Section A-A sectional view of the modified model reinforced phosphor-removing device of the present invention；
Fig. 3 is the top view of the modified model reinforced phosphor-removing device of the present invention；
Wherein: 1: water inlet pipe；2: annular coagulation gallery；3: heavy settling zone；4: storage bucket: 5: swash plate or inclined tube；6: annular collection
Tank；7: mud scraping truss；8: discharge pipeline；9: motor；10: drug tube；11: outlet pipe；12: perforation tracery wall.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme is described further.
The modified model reinforced phosphor-removing device of the present invention is Radial Flow Secondary Sedimentation Tank, as shown in Fig. 1 ~ 3, by coagulation district, settling zone,
Exhalant region and sludge discharging area composition；Wherein said coagulation district is made up of water inlet pipe 1 and annular coagulation gallery 2, and water inlet pipe 1 is arranged on
Second pond sidewall, connects with annular coagulation gallery 2, and annular coagulation gallery 2 top is provided with drug tube 10, and bottom slope is 10 ~
15%, at annular coagulation gallery 2 tail end 1/3, it is provided with perforation tracery wall 12；
Described settling zone is adjacent with coagulation district, is made up of the heavy settling zone 3 of lower floor and the swash plate on upper strata or tube settling district,
Wherein swash plate or the swash plate in tube settling district or inclined tube 5 height are 1 ~ 1.2m, and swash plate or inclined tube 5 placed angle are and horizontal direction
Angle is 55 ~ 60 °, and swash plate spacing or inclined tube aperture are 70 ~ 90mm, solid loading≤190kg/ (m2D), water inlet is from bottom to top
By swash plate or inclined tube 5；
Described exhalant region is positioned at above swash plate or the swash plate in tube settling district or inclined tube 5, including two annular collecting vats 6, ring
Shape water leg 6 is connected with outlet pipe 11；
Described sludge discharging area is positioned at bottom second pond, is provided with the mud scraping truss 7 driven by motor 9, scrapes base sludge to storage
Bucket 4 is also discharged by the discharge pipeline 8 bottom second pond.
Wherein, described coagulation district volume according to flow of inlet water, mud mixture containing phosphorus concentration and add pharmaceutical quantities and determine,
Specifically according to formula: V=(0.05 ~ 0.25) Q, wherein V: coagulation district volume, m3, entering of Q: mud mixture
Discharge, m3/ h, C: mud mixture containing phosphorus concentration (PO4 3-), mg/L, a: medicament delivery amount, mg/h, i.e. unit interval throw
Add confection amount, and 0≤| Qc-a |≤2.
Described storage bucket 4 volume is the 5% of settling zone total measurement (volume).
In the present embodiment, water inlet pipe 1 selects DN200, coagulation district discharge to be 100m3/ h, containing phosphorus concentration 1.5mg/L, adds
Pharmaceutical quantities 1.5 × 105Mg/h, volume is 25 m3；
The swash plate of settling zone or inclined tube height are 1m, and swash plate or inclined tube placed angle are to be 60 ° of angles with horizontal direction, between swash plate
Away from or inclined tube aperture be 90mm, solid loading≤190kg/ (m2·d)
The technique of the modified model reinforced phosphor-removing device dephosphorization using above-mentioned parameter of embodiment, follows the steps below:
(1) by the mud mixture of the sewage after Biochemical method, phosphorus content 1.5 mg/L sends into second pond through flow pipe
In coagulation district, water inlet flow velocity is 1.0m/s, adds dephosphorization composite drug by drug tube 10 to coagulation district, in annular coagulation corridor
In road 2, mixed flocculation plug-flow advance, and are 0.4m/s to annular coagulation gallery 2 tail end flow velocity, enter precipitation from perforation tracery wall 12
District；
(2) in settling zone, under gravity, first heavy impurity be deposited at the bottom of pond, and the little floc particle of proportion is with water
Flowing in slowly rising, until swash plate or tube settling district, floc particle is deposited in swash plate or inclined tube 5, it is achieved mud-water separation, tiltedly
On plate or inclined tube 5, the floc sludge of the sinking landing of accumulation inversely connects with the pastille mud mixture entered in heavy settling zone 3
Touch, strengthen mud-water separation further；
(3) phosphorus containing sludge precipitated through settling zone mud-water separation, is scraped 7 to storage bucket 4 and through discharge pipeline 8 row by mud scraping truss
Going out, and the clear water after mud-water separation flows into outlet pipe 11 by annular collecting vat 6, water outlet phosphorus concentration reaches country row after testing
Put standard, TP 0.5mg/L, the SS5 mg/L of water outlet.
Wherein, described dephosphorization composite drug by weight percentage, by Polyferric Sulfate Flocculants 15%, aluminium polychlorid
10%, crystallization reaction medicament magnesium sulfate 25%, calcium chloride 25%, as the quartz sand 2% of nucleus, magnetic iron ore 3%, tobermorite 3%,
Bone black 5%, montmorillonite 5%, flocculation aid polyacrylamide 2%, dicyandiamide yuban 5% form.
Claims (5)
1. a modified model reinforced phosphor-removing device is Radial Flow Secondary Sedimentation Tank, it is characterised in that by coagulation district, settling zone, exhalant region and
Sludge discharging area forms；Wherein said coagulation district is made up of water inlet pipe and annular coagulation gallery, and water inlet pipe is arranged on second pond sidewall,
Connecting with annular coagulation gallery, annular coagulation gallery top is provided with drug tube, and bottom slope is 10 ~ 15%, in annular coagulation corridor
Perforation tracery wall it is provided with at road tail end 1/3；
Described settling zone is adjacent with coagulation district, is made up of the heavy settling zone of lower floor and the swash plate on upper strata or tube settling district,
Wherein swash plate or the swash plate in tube settling district or inclined tube height are 1 ~ 1.2m, and swash plate or inclined tube placed angle are to press from both sides with horizontal direction
Angle is 55 ~ 60 °, and swash plate spacing or inclined tube aperture are 70 ~ 90mm, solid loading≤190kg/ (m2D), water inlet is led to from bottom to top
Cross swash plate or inclined tube；
Described exhalant region is positioned at above swash plate or the swash plate in tube settling district or inclined tube, including two annular collecting vats, annular
Water leg is connected with outlet pipe；
Described sludge discharging area is positioned at bottom second pond, is provided with by the mud scraping truss of driven by motor, is scraped by base sludge to storage mud
Bucket is also discharged by the discharge pipeline bottom second pond.
A kind of modified model reinforced phosphor-removing device the most according to claim 1, it is characterised in that described coagulation district volume evidence
Flow of inlet water, mud mixture containing phosphorus concentration and add pharmaceutical quantities and determine, specifically according to formula: V=(0.05 ~ 0.25) Q, wherein V: coagulation district volume, m3, the flow of inlet water of Q: mud mixture, m3/ h, C: mud mixture phosphorous
Concentration (PO4 3-), mg/L, a: medicament delivery amount, mg/h, i.e. unit interval add confection amount, and 0≤| Qc-a |≤2.
3. to remove a kind of modified model reinforced phosphor-removing device described in 1 according to right, it is characterised in that described storage bucket volume is
The 5% of settling zone total measurement (volume).
4. use a kind of modified model reinforced phosphor-removing device dephosphorization as claimed in claim 1 technique, it is characterised in that according to
Lower step is carried out:
(1) by the mud mixture of the sewage after Biochemical method in the coagulation district of second pond sent into by flow pipe, water inlet
Flow velocity is 0.8 ~ 1.0m/s, by drug tube to coagulation district addition dephosphorization composite drug, mixed flocculation in annular coagulation gallery
And plug-flow advances, it is 0.3 ~ 0.4m/s to annular coagulation gallery tail end flow velocity, enters settling zone from perforation tracery wall；
(2) in settling zone, under gravity, first heavy impurity be deposited at the bottom of pond, and the little floc particle of proportion is with water
Flowing in slowly rising, until swash plate or tube settling district, floc particle is deposited in swash plate or inclined tube, it is achieved mud-water separation, tiltedly
On plate or inclined tube, the floc sludge of the sinking landing of accumulation inversely contacts with the pastille mud mixture of entrance in heavy settling zone,
Strengthen mud-water separation further；
(3) phosphorus containing sludge precipitated through settling zone mud-water separation, is scraped to storage bucket by mud scraping truss and discharges through discharge pipeline,
And the clear water after mud-water separation flows into outlet pipe by annular collecting vat, water outlet phosphorus concentration reaches country's discharge mark after testing
Accurate.
The technique of a kind of modified model reinforced phosphor-removing device dephosphorization the most according to claim 4, it is characterised in that described removes
Phosphorus composite drug by weight percentage, by Polyferric Sulfate Flocculants 15%, aluminium polychlorid 10%, crystallization reaction medicament magnesium sulfate
25%, calcium chloride 25%, as the quartz sand 2% of nucleus, magnetic iron ore 3%, tobermorite 3%, bone black 5%, montmorillonite 5%, flocculation aid
Polyacrylamide 2%, dicyandiamide yuban 5% form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610911333.9A CN106242002B (en) | 2016-10-20 | 2016-10-20 | Improved enhanced phosphorus removal device and phosphorus removal process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610911333.9A CN106242002B (en) | 2016-10-20 | 2016-10-20 | Improved enhanced phosphorus removal device and phosphorus removal process |
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| Publication Number | Publication Date |
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| CN106242002A true CN106242002A (en) | 2016-12-21 |
| CN106242002B CN106242002B (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610911333.9A Active CN106242002B (en) | 2016-10-20 | 2016-10-20 | Improved enhanced phosphorus removal device and phosphorus removal process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821457A (en) * | 2018-05-31 | 2018-11-16 | 杜美凤 | A kind of sanitary sewage preliminary treatment and recycling device |
| CN115092997A (en) * | 2022-06-14 | 2022-09-23 | 温州杭钢水务有限公司 | Stable operation energy-saving consumption-reducing control method and system for high-load efficient sedimentation tank |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201684443U (en) * | 2010-01-05 | 2010-12-29 | 廖一 | Secondary flocculation inclined plate and tube sediment device |
| CN104310641A (en) * | 2014-10-22 | 2015-01-28 | 北京市环境保护科学研究院 | Deep phosphorous removal method for low-phosphorous water |
| CN204237611U (en) * | 2014-11-21 | 2015-04-01 | 江苏立能环保水处理工程有限公司 | Synchronous removal phosphorus and organic waste disposal plant |
-
2016
- 2016-10-20 CN CN201610911333.9A patent/CN106242002B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201684443U (en) * | 2010-01-05 | 2010-12-29 | 廖一 | Secondary flocculation inclined plate and tube sediment device |
| CN104310641A (en) * | 2014-10-22 | 2015-01-28 | 北京市环境保护科学研究院 | Deep phosphorous removal method for low-phosphorous water |
| CN204237611U (en) * | 2014-11-21 | 2015-04-01 | 江苏立能环保水处理工程有限公司 | Synchronous removal phosphorus and organic waste disposal plant |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821457A (en) * | 2018-05-31 | 2018-11-16 | 杜美凤 | A kind of sanitary sewage preliminary treatment and recycling device |
| CN115092997A (en) * | 2022-06-14 | 2022-09-23 | 温州杭钢水务有限公司 | Stable operation energy-saving consumption-reducing control method and system for high-load efficient sedimentation tank |
| CN115092997B (en) * | 2022-06-14 | 2023-03-24 | 温州杭钢水务有限公司 | Stable operation energy-saving consumption-reducing control method and system for high-load efficient sedimentation tank |
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| CN106242002B (en) | 2020-01-14 |
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