CN106673381A - Sludge treatment device and method - Google Patents
Sludge treatment device and method Download PDFInfo
- Publication number
- CN106673381A CN106673381A CN201610959168.4A CN201610959168A CN106673381A CN 106673381 A CN106673381 A CN 106673381A CN 201610959168 A CN201610959168 A CN 201610959168A CN 106673381 A CN106673381 A CN 106673381A
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- China
- Prior art keywords
- sludge
- carbon source
- pool
- sludge treatment
- ceramic
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
Abstract
The invention discloses a sludge treatment device and method. The sludge treatment device comprises a sludge distribution pool, a suction pump, a contact pool and a carbon source conversion pool, wherein a ceramic membrane assembly is mounted in the contact pool; the ceramic membrane assembly adopts a container structure which is formed by a ceramic membrane and has an outlet; the ceramic membrane is a membrane which is formed by sintering ceramic particle powder and has a pore channel; one end of the contact pool is communicated with the sludge distribution pool; the outlet of the ceramic membrane assembly is communicated with the suction pump; the lower end of the contact pool is communicated with the carbon source conversion pool; an ozone aerator is mounted at the lower part in the carbon source conversion pool, and a tail gas outlet and a carbon source overflowing opening are formed in the upper part in the carbon source conversion pool ; the carbon source overflowing opening is communicated with a carbon source storage pool. According to the sludge treatment device and the sludge treatment method, which are provided by the invention, synergism of sludge separation, reclaimed water purification and sludge carbon source conversion can be realized, land is saved, the complexity of operation and management is greatly reduced, and the investment cost of facilities and the cost of operation management are reduced.
Description
Technical field
The present invention relates to field of sludge treatment, more particularly to a kind of sludge treatment equipment and method.
Background technology
At present, it is that city domestic sewage processes two for facing that municipal sewage plant excess sludge processes disposal and reclaimed water reuse
Individual major issue.
Municipal sewage plant typically adopts activated sludge process, and it produces excess sludge during sewage is processed, this
Class amount of sludge is usually the 1%~2% of sewage quantity；And the process disposal options of excess sludge are usually to fill or burn
Burn, this processing mode becomes increasingly difficult in the area of height urbanization.But, on the other hand, sewage denitrification and dephosphorization process
In also need to carbon source；Some sewage treatment plants in order to make up the deficiency of carbon source, using adding in addition by the way of carbon source, conventional carbon
Source material is methyl alcohol and sodium acetate, and this can increase the cost of sewage disposal.In addition, also there is some that sludge is transformed into carbon source
Research and practice, its mode is, using anaerobic hydrolysis handling process, excess sludge to be transformed into fatty acid material.Some realities
Proof is trampled, this process can provide enough effective carbon sources, but, the shortcoming of this technique is that process time is long, one
As be 2.5 to 5 hours, corresponding floor space is big, and stink is big, and sanitary condition is poor, and some Sewage Plants do not have soil space,
It is difficult to carry out.
Using the trend for being the development of city domestic sewage treatment plant, its reason is some regional waters to regenerated water sourceization
Shortage, needs using recycled water water resource alternatively, for promoting society and expanding economy.At present, at recycled water
Science and engineering skill great majority are filtered using enhanced coagulation, directly, fiber cloth is filtered, i.e.,：To secondary clarifier effluent dosing coagulant so that water
The fine particle of middle residual is formed than larger flco through elimination of colloid stability, and quartz sand filtration, or fiber cloth are then carried out again
Filter, remove turbidity particle, delivery turbidity is typically in 5NTU or so；This recycled water is generally used for municipal administration greening and road-cleaning
Deng being not met by the demand for increasingly improving.
Also there are some researchs and practice in terms of hollow-fibre membrane is used for reused water processing, but, hollow-fibre membrane
Belong to organic film, membrane flux is easily blocked than relatively low (20 l/h-square metre), and fenestra, backwash is frequent, has in addition
Machine film is easily aging, short life, so hollow-fibre membrane is used seldom in reused water processing utilization practice.
In city domestic sewage treatment plant, the process of excess sludge and the process of recycled water are carried out respectively, and this enters one
Step exacerbates the anxiety of Sewage Plant soil space, increased the complexity of operation operational administrative, increases facility investment expense and Jing
The cost of battalion's management.
The disclosure of background above technology contents is only used for design and the technical scheme for aiding in understanding the present invention, and it is not necessarily
Belong to the prior art of present patent application, without tangible proof show the above present patent application the applying date
In the case of disclosed, above-mentioned background technology should not be taken to evaluate the novelty and creativeness of the application.
The content of the invention
To solve above-mentioned technical problem, the present invention proposes a kind of sludge treatment equipment and method, can simultaneously realize sludge
The collaboration of Water warfare and sludge carbon source conversion is separated, is regenerated, is saved the area, greatly reduce the complexity of operation operational administrative,
Reduce the cost of facility investment expense and operation management.
To reach above-mentioned purpose, the present invention is employed the following technical solutions：
The invention discloses a kind of sludge treatment equipment, including the conversion of sludge distributing reservoir, suction pump, contact chamber and carbon source
Pond, wherein：
Ceramic film component is installed, the ceramic film component is gone out with one by what ceramic membrane was formed in the contact chamber
The structure of container of mouth, the ceramic membrane is the film with pore channel formed by ceramic particle powder sintering；The contact chamber
One end connect the sludge distributing reservoir, suction pump described in the outlet of the ceramic film component, the contact chamber
Lower end connects the carbon source conversion pool；
Bottom in the carbon source conversion pool is provided with ozonation aerated device, and top is provided with offgas outlet and carbon overflow goes out
Mouthful, the carbon overflow exit connects carbon source storage pool.
Preferably, air aeration device is additionally provided with the contact chamber, the air aeration device is arranged on the ceramic membrane group
The lower section of part to the surface of the ceramic film component carrying out air aeration.
Preferably, it is connected with ozone tail gas processor at the offgas outlet that the top of the carbon source conversion pool is provided with.
Preferably, the ceramic membrane be by the ceramic particle powder sintering that particle diameter is 160~650nm formed with average
The flat plate membrane of the pore channel of a diameter of 25~100nm.
Preferably, the lower end of the contact chamber is set in the carbon source conversion pool, and is set in the bottom of the contact chamber
There is swash plate flow-guiding structure to connect the carbon source conversion pool.
The invention also discloses a kind of method for sludge treatment, is processed sludge using described sludge treatment equipment,
Comprise the following steps：
S1：Sludge in the sludge distributing reservoir is passed into the contact chamber, the suction pump is from the ceramic membrane
The exit suction of component can pass through the water on the ceramic membrane in the sludge of pore channel；
S2：It is not flowed into the carbon source conversion pool by the part of pore channel on the ceramic membrane in sludge, with institute
The ozone for stating the output of foul smell aerator reacts, and reacts the carbon source for being formed and is flowed into the carbon through carbon overflow outlet
In the storage pool of source.
Preferably, the ozone amount of the output of foul smell aerator described in step S2 is 25~150mg/L, is flowed into the carbon source
Sludge in conversion pool is 15~30min with the catalytic oxidation time of ozone.
Preferably, step S1 also includes carrying out air aeration to the ceramic film component surface using air aeration device.
Preferably, step S2 also includes processing the ozone tail gas in the carbon source conversion pool.
Compared with prior art, the beneficial effects of the present invention is：The sludge treatment equipment of the present invention, adopts with ceramic membrane
The ceramic film component of composition is the sludge treating system of core, and the surface of ceramic membrane can retain separated sludge, enable by pottery
Through the water that purifies, the Jing by ceramic membrane surface after aspirates pumped to pore channel on porcelain film, and the sludge being trapped then can enter
Enter in carbon source conversion pool, the bottom of carbon source conversion pool is provided with ozonation aerated device, in the streams of ozone of ozonation aerated device output
Rise agitation sludge to flow up upwards, ozone carries out aoxidizing brokenly born of the same parents to sludge cell, promote deliquescent cytoplasm to discharge, particle
The sludge of state, with airflow stirring remitted its fury, can transfer precipitation downwards in uphill process, form adverse current with streams of ozone and connect
Touch, be oxidized again, improve sludge degree of oxidation, lift the efficiency of carbon source conversion such that it is able in ozone Quick Oxidation, break
The cell membrane of bad mud granule so as in dissolubility cytoplasm discharge, form deliquescent carbon source, and in static pressure
The lower automatic overflow of effect is discharged；Therefore, the present invention is by ozonation aerated device in ceramic film component in contact chamber and carbon source conversion pool
Be used in combination while realize the separation of sludge, regeneration water purification and rapid conversion and the separation of sludge carbon source, and this
Bright sludge treatment equipment directly can be implemented in traditional second pond, save the area, and the upgrading for being easy to sewage treatment plant changes
Make, greatly reduce the complexity of operation operational administrative, reduce the cost of facility investment expense and operation management.
In further scheme, the present invention also has the advantages that：
Air aeration device is provided with below ceramic film component, on the one hand can realize stirring sludge, on the other hand may be used also
To realize cleaning the surface of ceramic film component, alleviate the surface contamination blockage problem of ceramic film component.
Ceramic film component is further formed by the nano-ceramic particle powder sintering in certain particle size range has nanometer
The ceramic membrane composition of pore channel, sludge can carry out depth-type filtration in the nanoaperture passage by ceramic membrane to recycled water
Process, so as to realize the deep purifying of recycled water.
The lower end of contact chamber is set in the carbon source conversion pool, and is provided with swash plate flow-guiding structure in the bottom of contact chamber,
Preferably can export with ozonation aerated device during facilitating and be flowed into carbon source conversion pool by the sludge that ceramic film component is retained
Ozone reacts, and further improves the carbon source conversion ratio of sludge.
When processing sludge, the ozone amount of foul smell aerator output is maintained at 25~150mg/L, sludge and ozone
Time of contact be maintained at 15~30min, on the one hand cause sludge cell membrane to be just oxidized division, promote intracellular deliquescent
Cytoplasm is discharged, and is on the other hand also avoided over oxidation and is caused carbon source Quality Down.
Description of the drawings
Fig. 1 is the structural representation of the sludge treatment equipment of the preferred embodiment of the present invention.
Specific embodiment
Below against accompanying drawing and with reference to preferred embodiment the invention will be further described.
As shown in figure 1, being the sludge treatment equipment of the preferred embodiment of the present invention, mainly include sludge distributing reservoir 1, contact chamber
2nd, carbon source conversion pool 3 and suction pump 4, wherein sludge distributing reservoir 1 is connected with one end of contact chamber 2, the lower end connection carbon of contact chamber 2
Source conversion pool 3.
Ceramic film component 21 is installed in contact chamber 2, ceramic film component 21 be by ceramic membrane formed with one outlet
Structure of container, ceramic membrane is the film with pore channel formed by ceramic particle powder sintering, and ceramic film component 21 goes out
Mouth connection suction pump 4；Further, ceramic membrane is by having that the ceramic particle powder sintering that particle diameter is 160~650nm is formed
Average diameter is the flat plate membrane of the pore channel of 25~100nm.Air aeration device 22, air aeration are additionally provided with contact chamber 2
Device 22 is arranged on the lower section of ceramic film component 21 to carry out air aeration to the surface of ceramic film component 21.The lower end of contact chamber 2
It is set in carbon source conversion pool 3, and is provided with swash plate flow-guiding structure 23 to connect carbon source conversion pool 3 in the bottom of contact chamber.
Bottom in carbon source conversion pool 3 is provided with ozonation aerated device 31, and top is provided with carbon overflow outlet 32 and tail gas goes out
Mouth 33, connects carbon source storage pool 5 to store the carbon source that conversion is formed, the connect setting at offgas outlet in carbon overflow exit
Ozone tail gas processor 6 is processed with the tail gas to discharge.
The method processed sludge by the sludge treatment equipment of the preferred embodiment of the present invention, is comprised the following steps：
S1：First residual active sludge is entered into sludge distributing reservoir 1, is then uniformly passed into contact chamber 2, to dirty
Move through ceramic film component 21, while from the air air inlet aerator 22 of the conveying of compressor 221, aeration forms small gas
Bubble, flows up, and stirs sludge, while cleaning to the surface of ceramic film component 21, alleviates the surface of ceramic film component 21
Blockage problem, sludge Interstitial Water enters into the inside of ceramic film component, by suction pump 4, collects and is discharged in clear water reserviors 41, shape
Into the recycled water through deep purifying, water resource recycling can be carried out；
S2：Downwards the sludge of precipitation, is entered into carbon source conversion pool 3 by swash plate flow-guiding structure 23, and pond inner bottom part is arranged
There is ozonation aerated device 31, the ozone exported by ozone generator 311 enters into ozonation aerated device 31 and produces ozone bubbles, air-flow
Rise agitation sludge to flow up upwards, ozone carries out aoxidizing brokenly born of the same parents to sludge cell, promote deliquescent cytoplasm to discharge,
The sludge of grain state, with airflow stirring remitted its fury, can transfer precipitation downwards in uphill process, and with streams of ozone adverse current is formed
Contact, is oxidized again, improves sludge degree of oxidation, lifts the efficiency of carbon source conversion；Deliquescent carbon source mixed liquor is from carbon source
Overflow outlet 32 is discharged, and in being pooled to carbon source storage pool 5, the ozone gas of residual are discharged to smelly from the offgas outlet 33 on top
Oxygen exhaust gas treating device 6, makes residue ozone be decomposed into harmless oxygen and empty.
Following combination instantiations are further described to the method for sludge treatment of the present invention.
Example one：
The test present invention carries out the effect of carbon source conversion for excess sludge, gathers sludge SS concentration for 4500g/L, water phase
COD is 50mg/L, and ozone dosage is respectively 0.02,0.04,0.06,0.08,0.10 and 0.12g/g-SS, and oxidization time is 30
Minute, the COD concentration of stripping material is 100,300,400,800,1100 and 1300mg/L.If with COD concentration contained by sewage
For 300-500mg/L scopes, mean value is 400mg/L, sludge conversion obtain carbon source concentration and reach the multiple of COD of sewage be
1300/400=3.25 times, the carbon source of this explanation sludge conversion can significantly supplement the deficiency of carbon source in sewage disposal process.
Example two：
Fixed ozone dosage 0.05g/g-SS, oxidation time is 30 minutes, then staticly settles the time and is respectively
2.5th, 5,10,15,25,40 minutes, SS settling ratios are tested, its sedimentation ratio is respectively 4%, 22%, 30%, 46%, 60% and
72%.Contrast shows that carbon source conversion ratio can reach more than 70%.
Example three：
Using sludge concentration 4500mg/L, flat ceramic membrane flux 40L/m2- h, initial transmembrane pressure (TMP) is 15kPa,
0,10,30,60,90,120,150,180 minutes sample times, correlation water testing result, film effluent COD concentration is respectively 21,
18.5th, 20.4,21.3,17.9,20.4,20.6,19.6mg/L, turbidity is respectively 0.2,0.3,0.47,0.16,0.41,0.36,
0.26、0.19NTU.As a result illustrate, ceramic membrane effluent quality has reached high quality reuse water quality level.The ceramic membrane group of the present invention
Part is arranged in parallel by multiple ceramic membranes, is placed in contact chamber, and the gap between diaphragm is 2cm or so, when sludge mixing
When liquid is entered in contact chamber, water is penetrated into the inner chamber of ceramic film component by the both sides plate face of layered ceramic film, by suction pump
Swabbing action and collect and be expelled to clear water reserviors, formed recycled water, its turbidity be less than 0.5NTU, colorless and odorless, transparency be close to
In running water, this recycled water through milipore filter advanced treating can be used for ecoscape and industrial processes.
Can be seen that by above-mentioned testing result can be while realize sludge point by the method for sludge treatment of the present invention
From, regeneration Water warfare and sludge carbon source conversion collaboration.
The sludge treatment equipment and method of the present invention, first by adopting ceramic film component, due to mud granule size one
As more than ceramic membrane pore channel diameter, sludge is separated, be trapped within contact chamber, gradually concentrate, along pottery
Porcelain film surface, downwards precipitation, carbon source conversion pool is entered in the bottom of contact chamber by swash plate flow-guiding structure, and its concentration is gradually concentrated
Arrive 30000mg/L or so；Current enter into the pore channel of ceramic film component in mud mixed liquid, separate from mud mixed liquid
Out, high-quality recycled water is formed, wherein SS contents are 0.5mg/L；In carbon source conversion pool, high concentration sludge is carried out quickly
Ozonation aerated oxidation and agitation, control 25~150mg/L of ozone concentration causes sludge cell membrane to be just oxidized division, promotes born of the same parents
Interior deliquescent cytoplasm is discharged, and dissolubility cytoplasm is flowed up as carbon source, and overflow is discharged, and cell wall fragments
Precipitate downwards, and aoxidized repeatedly and dissolved by ozone, improve carbon source transformation efficiency, at utmost reduce sludge residue quantity.
The sludge treatment equipment of the present invention reaches more than 70% to the transformation efficiency of sludge, greatlys save sludge treatment expense, it is to avoid
Sludge forms secondary pollution.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert
The present invention be embodied as be confined to these explanations.For those skilled in the art, do not taking off
On the premise of present inventive concept, some equivalent substitutes or obvious modification can also be made, and performance or purposes are identical, all should
When being considered as belonging to protection scope of the present invention.
Claims (9)
1. a kind of sludge treatment equipment, including sludge distributing reservoir and suction pump, it is characterised in that also turn including contact chamber and carbon source
Change pond, wherein：
Ceramic film component is installed in the contact chamber, the ceramic film component be by ceramic membrane formed with one outlet
Structure of container, the ceramic membrane is the film with pore channel formed by ceramic particle powder sintering；The one of the contact chamber
The end connection sludge distributing reservoir, suction pump described in the outlet of the ceramic film component, the lower end of the contact chamber
Connect the carbon source conversion pool；
Bottom in the carbon source conversion pool is provided with ozonation aerated device, and top is provided with offgas outlet and carbon overflow outlet, institute
State carbon overflow exit connection carbon source storage pool.
2. sludge treatment equipment according to claim 1, it is characterised in that be additionally provided with air aeration in the contact chamber
Device, the air aeration device is arranged on the lower section of the ceramic film component to carry out air exposure to the surface of the ceramic film component
Gas.
3. sludge treatment equipment according to claim 1, it is characterised in that the institute that the top of the carbon source conversion pool is provided with
State and be connected with offgas outlet ozone tail gas processor.
4. sludge treatment equipment according to claim 1, it is characterised in that the ceramic membrane be by particle diameter be 160~
The flat plate membrane with the pore channel that average diameter is 25~100nm that the ceramic particle powder sintering of 650nm is formed.
5. the sludge treatment equipment according to any one of Claims 1-4, it is characterised in that the lower end set of the contact chamber
It is located in the carbon source conversion pool, and is provided with swash plate flow-guiding structure in the bottom of the contact chamber to connect the carbon source conversion
Pond.
6. a kind of method for sludge treatment, it is characterised in that using the sludge treatment equipment pair described in any one of claim 1 to 5
Sludge is processed, and is comprised the following steps：
S1：Sludge in the sludge distributing reservoir is passed into the contact chamber, the suction pump is from the ceramic film component
The exit suction can pass through the ceramic membrane on pore channel sludge in water；
S2：It is not flowed into the carbon source conversion pool by the part of pore channel on the ceramic membrane in sludge, it is smelly with described
The ozone of gas aerator output reacts, and reacts the carbon source for being formed and is flowed into the carbon source storage through carbon overflow outlet
Deposit in pond.
7. method for sludge treatment according to claim 6, it is characterised in that the output of foul smell aerator described in step S2
Ozone amount is 25~150mg/L, be flowed into sludge in the carbon source conversion pool and the catalytic oxidation time of ozone be 15~
30min。
8. method for sludge treatment according to claim 6, it is characterised in that step S1 is also included using air aeration device pair
The ceramic film component surface carries out air aeration.
9. the method for sludge treatment according to any one of claim 6 to 8, it is characterised in that step S2 is also included to described
Ozone tail gas in carbon source conversion pool are processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610959168.4A CN106673381A (en) | 2016-11-03 | 2016-11-03 | Sludge treatment device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610959168.4A CN106673381A (en) | 2016-11-03 | 2016-11-03 | Sludge treatment device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106673381A true CN106673381A (en) | 2017-05-17 |
Family
ID=58839525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610959168.4A Pending CN106673381A (en) | 2016-11-03 | 2016-11-03 | Sludge treatment device and method |
Country Status (1)
| Country | Link |
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| CN (1) | CN106673381A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170604A (en) * | 2020-01-19 | 2020-05-19 | 江苏国翔环保科技有限公司 | Ozone sludge treatment equipment and using method thereof |
| CN117303701A (en) * | 2023-11-03 | 2023-12-29 | 北控水务(中国)投资有限公司 | Efficient sludge concentration device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170604A (en) * | 2020-01-19 | 2020-05-19 | 江苏国翔环保科技有限公司 | Ozone sludge treatment equipment and using method thereof |
| CN117303701A (en) * | 2023-11-03 | 2023-12-29 | 北控水务(中国)投资有限公司 | Efficient sludge concentration device |
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