CN108380046A - A kind of dynamic film sewage treatment system for the processing of lavatory fecaluria - Google Patents
A kind of dynamic film sewage treatment system for the processing of lavatory fecaluria Download PDFInfo
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- CN108380046A CN108380046A CN201810185593.1A CN201810185593A CN108380046A CN 108380046 A CN108380046 A CN 108380046A CN 201810185593 A CN201810185593 A CN 201810185593A CN 108380046 A CN108380046 A CN 108380046A
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- dynamic
- diatomite
- dynamic membrane
- membrane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/04—Backflushing
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention provides a kind of dynamic film sewage treatment system for the processing of lavatory fecaluria.It is made of equal scissoring vibrations diatomite dynamic membrane reactor, intake pump, micropore aeration pipe, air compressor, dynamic film component, connecting rod, driving shaft, motor, frequency converter and water outlet pump, present invention processing is easy, efficient low-consume, pass through equal scissoring vibrations, ensure that Dynamic Membrane surface pressure distribution is uniform, fouling membrane is reduced, the validity of diatomite dynamic membrane processing excrement and urine waste is improved.Present invention process is simple, and the processing of excrement and urine waste can be completed in a reaction unit；The scissoring vibrations such as utilize so that feed liquid generates preferable hydraulic shear effect during film surface quickly flows, and alleviates film surface concentration polarization, ensures that effluent quality is excellent while reducing energy consumption；Equal scissoring vibrations diatomite dynamic membrane filtration flux is in 100~300L/m2H, continuous operating time are more than 70~300h, and delivery turbidity, which is stablized, is less than 0.3NTU.Suitable for the reuse of the sewage such as lavatory fecaluria, achieve the effect that water-saving to subtract dirt.
Description
Technical field
The present invention relates to a kind of dynamic film sewage treatment systems for the processing of lavatory fecaluria, it can be achieved that waiting shearing forces
Under dynamic film process fecaluria processing, ensure Dynamic Membrane surface pressure distribution it is uniform, reduce fouling membrane, improve filtering stability,
Belong to sewage treatment field UF membrane new technology.
Background technology
Currently, the common lavatory in China is flushed the toilet for water, the excreta of human body usually passes through " lavatory-septic tank-urban sewage
Road " system is transported to sewage treatment plant, is then discharged into water body nearby.However, not perfect or at all without downcomer in sewer
The fecal sewage in the area of net system, people is often directly discharged into neighbouring river.The pollution in river, while its are not only aggravated
In nitrogen phosphorus lake is entered by river, increase the nitrogen and phosphorus load into lake, eventually lead to the eutrophication of many urban water-bodies.
In addition, water closet needs to rinse excrement with a large amount of clean water, a large amount of water resource is wasted.
Membrane technology has reliable effluent quality, non-secondary pollution, easy to operate etc. as a kind of novel water technology
Advantage, but membrane module is expensive, and membrane pollution problem seriously limits application of the membrane technology in sewage disposal.As a kind of spy
The membrane technology of different form, Dynamic Membrane is under suitable condition, to contain organic or inorganic substance using porous media circulating filtration
Solution, deposit or assemble a level filming layer, i.e. dynamic film layer in dielectric surface.The film that Dynamic Membrane can mitigate basement membrane is dirty
Dye reduces the price of membrane module, and has good permeability and rejection effect.Compared with the fixed film of tradition, Dynamic Membrane is dirty
The features such as water technology has flux big, and interception capacity is high, and operating cost is low, maintenance requirement is low.Therefore, Dynamic Membrane dirt is constructed
Water treatment system can effectively mitigate membrane pollution problem caused by lavatory fecaluria processing procedure.
Invention content
Present invention aims at a kind of equal scissoring vibrations dynamic membrane process is provided, technological process is simple, makes feed liquid in film
Surface generates preferable hydraulic shear effect during quickly flowing, to effectively remove organic matter in sanitary wastewater, ammonia nitrogen, hang
The pollutants such as float realize the reuse of lavatory excrement and urine waste, the water-saving dynamic film sewage treatment system for subtracting dirt.
The removal of pollutant is mainly by equal scissoring vibrations diatomite dynamic membrane reaction unit in lavatory excrement and urine waste of the present invention
Middle mixed liquor microbial degradation removal, mixed liquor are separated by solid-liquid separation the scissoring vibrations process dynamics membrane modules such as water outlet process and complete.
A kind of dynamic film sewage treatment system for the processing of lavatory fecaluria proposed by the present invention, by waiting scissoring vibrations diatom
Native dynamic membrane reactor 1, intake pump 2, micropore aeration pipe 3, air compressor 4, dynamic film component 5, connecting rod 6, driving shaft 7,
Motor 8, frequency converter 9 and water outlet pump 10 form, wherein：Dynamic film component 5 is installed using submerged, is located at and is waited scissoring vibrations diatom
1 middle part of native dynamic membrane reactor, dynamic film component 5 are fixed on 6 one end of connecting rod, and 6 other end of connecting rod is connected by driving shaft 7
Motor 8, dynamic film component 5 are controlled by motor 8 by connecting rod 6 and driving shaft 7 and are rotated, and motor 8 connects frequency converter 9, the change
Frequency device 9 is used for regulation motor frequency, and micropore aeration pipe 3, which is located at, waits bottom in scissoring vibrations diatomite dynamic membrane reactor 1, micropore
Aeration tube 3 connects air compressor 4, and the air compressor 4 is by micropore aeration pipe 3 to equal scissoring vibrations diatomite dynamic membrane
1 bottom of reactor is aerated, and the micropore aeration pipe 3 is located at 5 lower section of dynamic film component, and 5 top of dynamic film component is water outlet, institute
Water outlet connection water outlet pump 10 is stated, the intake pump 2 is pushed up by scissoring vibrations diatomite dynamic membrane reactors 1 such as water inlet pipe connections
The water inlet in portion；The dynamic film component 5 is made of diatomite dynamic membrane and dynamic membrane support body, the dynamic membrane support body by
Silk screen and braced frame composition；It is as follows：
(1) diatomite dynamic membrane precoats the stage
Choice of powder diatomite（10~30 μm）As Dynamic Membrane class coating material, diatomite content is controlled 15000 in reactor
Diatomite is uniformly applied to dynamic membrane support body surface, with delivery turbidity ＜ by~25000mg/L by water outlet pump swabbing action
0.3NTU come determine precoating whether complete；Full pre-coating process needs the min of 15 min~20；
(2) etc. scissoring vibrations diatomite dynamic membrane handles the lavatory excrement and urine waste operation phase
After the completion of the precoating stage, into etc. scissoring vibrations diatomite dynamic membrane handle the lavatory excrement and urine waste operation phase, cut waiting
It cuts under active force, ensures that there is preferable hydraulic shear effect during sewage algae film surface quickly flows, and keep film surface
Filter pressure is evenly distributed, and wherein amplitude controlling is in 0~10cm, 0.1~40Hz of frequency；Control the unit area of dynamic film component
Membrane Filtration Flux is stablized in 100~300L/m2H, continuous operating time are more than 70~300h, and delivery turbidity stabilization is less than
0.3NTU；
(3) diatomite dynamic membrane backwash stage
When equal scissoring vibrations diatomite dynamic membrane filtering effluent flux drops to preset value, when reaching 50L/m2It is right when h
Diatomite dynamic membrane is backwashed, and is washed 1~3min of time, 10~100kPa of admission pressure using air recoil, is made Dynamic Membrane
It completely falls off, dynamic membrane support body component is not necessarily to regular chemical cleaning.
In the present invention, for the dynamic membrane support body used for 180~250 mesh stainless (steel) wires or nylon wire, structure uses tablet
One or more of formula, tubular type or hollow fiber form, using the immersion method of operation.
In the present invention, about 10~30 μm of diatomite average grain diameter.
In the present invention, micropore gas explosion bubble diameter 5mm~8 mm.
In the present invention, the adjusting frequency of frequency modulator is 0.1~40Hz.
In the present invention, adjusting amplitude is 0~10cm.
Compared with prior art, the beneficial effects of the invention are as follows：
1. the scissoring vibrations such as use ensure that Dynamic Membrane surface pressure distribution is uniform, while the cross-flow hydraulic shear that film surface is formed
Effect can reduce fouling membrane, extend the clean and maintenance period, reduce the requirement to material concentration in separation process.
2. the present apparatus can be always maintained at maximum shearing rate at work, to significantly reduce the concentration polarization of film surface
Change, improves filtering stability.
3. the precoating stage selects nontoxic powder diatomite as Dynamic Membrane class coating material, pre-coating process is after the completion without throwing
Add other chemical agents, it is environmentally safe.
4. the present invention is suitble to various lavatory excrement and urine waste processing.
Description of the drawings
Fig. 1 illustrates for embodiment system structure.
Figure label：1 equal scissoring vibrations diatomite dynamic membrane reactor；2 intake pumps；3 micropore aeration pipes；4 air compress
Machine；5 dynamic film components；6 connecting rods；7 driving shafts；8 motors；9 frequency converters；10 water outlet pumps.
Specific implementation method
It is further illustrated the present invention below by embodiment combination attached drawing.
Embodiment 1
As shown in Figure 1, the system by reactor 1, intake pump 2, micropore aeration pipe 3, air compressor 4, dynamic film component 5,
Connecting rod 6, driving shaft 7, motor 8, frequency converter 9 and water outlet pump 10 form, wherein：Dynamic film component 5 is installed using submerged, position
In 1 middle part of reactor, dynamic film component 5 is fixed on connecting rod 6 and is controlled rotation by motor 8 by driving shaft 7, and electric machine frequency is by becoming
Frequency device 9 is adjusted, and air compressor 4 is aerated by aeration tube to 1 bottom of reactor, and aeration tube is located at 5 lower section of dynamic film component, moves
5 top of state membrane module is water outlet, and the water outlet connects water outlet pump 10, and the dynamic film component is by diatomite dynamic membrane and moves
State film support forms, and the dynamic membrane support body is made of silk screen and braced frame；The diatomite used in implementation process, grain
10~30 μm of diameter, about 0.1~0.3 μm of average pore size.Water outlet is filtered using hollow fiber form dynamic membrane support body component.It is former
Water asks for certain lavatory excrement and urine waste, sewage quality：COD is 35000~40000 mg/L, and TN is 2800~3200 mg/L,
TP is 360~420 mg/L.
(1) diatomite dynamic membrane precoats and disposably adds powder sintered diatomite into reactor, controls silicon in reactor
Diatomaceous earth content is 18000mg/L keeps diatomite uniform coating online in mesh stainless steel wire, film using wriggling pumping
20min, delivery turbidity are less than 0.3NTU, i.e. film terminates.Diatomite dynamic membrane collectively forms film with stainless steel cloth supporter
Component.
(2) oscillatory shear diatomite dynamic membrane device frequency 5HZ, amplitude 3cm are adjusted.Adjusting disengaging water pump makes in reactor
Water balance.Effluent flux is stable at 150 L/m after water inlet 90min2H, delivery turbidity ＜ 0.05NTU.
(3) when diatomite dynamic membrane gravity filtration effluent flux drops to preset value 50L/m2It, need to be to diatomite when h
Dynamic Membrane is backwashed.2 min of time, 25 kPa of admission pressure are washed using air recoil, Dynamic Membrane can be made to completely fall off.
Embodiment 2
Using system shown in embodiment 1, the diatomite used in implementation process, 10~30 μm of grain size, average pore size about 0.1~
0.3μm.Water outlet is filtered using hollow fiber form dynamic membrane support body component.Raw water asks for certain lavatory excrement and urine waste, dirty
Water water quality：COD is 35000~40000 mg/L, and TN is 2800~3200 mg/L, and TP is 360~420 mg/L.
(1) diatomite dynamic membrane precoats and disposably adds powder sintered diatomite into reactor, controls silicon in reactor
Diatomaceous earth content is 25000mg/L keeps diatomite uniform coating online in mesh stainless steel wire, film using wriggling pumping
20min, delivery turbidity are less than 0.3NTU, i.e. film terminates.Diatomite dynamic membrane collectively forms film with stainless steel cloth supporter
Component.
(2) oscillatory shear diatomite dynamic membrane device frequency 10HZ, amplitude 5cm are adjusted.Adjusting disengaging water pump makes reactor
Interior water balance.Effluent flux is stable at 150 L/m after water inlet 60min2H, delivery turbidity ＜ 0.05NTU.
(3) when diatomite dynamic membrane gravity filtration effluent flux drops to preset value 50L/m2It, need to be to diatomite when h
Dynamic Membrane is backwashed.2 min of time, 25 kPa of admission pressure are washed using air recoil, Dynamic Membrane can be made to completely fall off.
Claims (6)
1. a kind of dynamic film sewage treatment system for the processing of lavatory fecaluria, it is characterised in that by waiting scissoring vibrations diatomite to move
State membrane reactor（1）, intake pump（2）, micropore aeration pipe（3）, air compressor（4）, dynamic film component（5）, connecting rod（6）、
Driving shaft（7）, motor（8）, frequency converter（9）And water outlet pump（10）Composition, wherein：Dynamic film component（5）It is installed using submerged,
Positioned at equal scissoring vibrations diatomite dynamic membrane reactor（1）Middle part, dynamic film component（5）It is fixed on connecting rod（6）One end, connection
Bar（6）The other end passes through driving shaft（7）Connect motor（8）, dynamic film component（5）Pass through connecting rod（6）And driving shaft（8）By electricity
Machine（8）Control rotation, motor（8）Connect frequency converter（9）, the frequency converter（9）For regulation motor frequency, micropore aeration pipe
（3）The bottom in equal scissoring vibrations diatomite dynamic membrane reactor 1, micropore aeration pipe（3）Connect air compressor（4）, institute
State air compressor（4）Pass through micropore aeration pipe（3）It is aerated to 1 bottom of equal scissoring vibrations diatomite dynamic membrane reactor, it is described
Micropore aeration pipe（3）Positioned at dynamic film component（5）Lower section, dynamic film component（5）Top is water outlet, and the water outlet connects out
Water pump（10）, the intake pump（2）Pass through the scissoring vibrations diatomite dynamic membrane reactors such as water inlet pipe connection（1）The water inlet at top
Mouthful；The dynamic film component（5）Be made of diatomite dynamic membrane and dynamic membrane support body, the dynamic membrane support body by silk screen and
Braced frame forms；It is as follows：
（1）Diatomite dynamic membrane precoats the stage
Choice of powder diatomite（10~30 μm）As Dynamic Membrane class coating material, diatomite content is controlled 15000 in reactor
Diatomite is uniformly applied to dynamic membrane support body surface, with delivery turbidity ＜ by~25000mg/L by water outlet pump swabbing action
0.3NTU come determine precoating whether complete；Full pre-coating process needs the min of 15 min~20；
（2）Equal scissoring vibrations diatomite dynamic membrane handles the lavatory excrement and urine waste operation phase
After the completion of the precoating stage, into etc. scissoring vibrations diatomite dynamic membrane handle the lavatory excrement and urine waste operation phase, cut waiting
It cuts under active force, ensures that there is preferable hydraulic shear effect during sewage algae film surface quickly flows, and keep film surface
Filter pressure is evenly distributed, and wherein amplitude controlling is in 0~10cm, 0.1~40Hz of frequency；Control the unit area of dynamic film component
Membrane Filtration Flux is stablized in 100~300L/m2H, continuous operating time are more than 70~300h, and delivery turbidity stabilization is less than
0.3NTU；
（3）Diatomite dynamic membrane backwash stage
When equal scissoring vibrations diatomite dynamic membrane filtering effluent flux drops to preset value, when reaching 50L/m2It is right when h
Diatomite dynamic membrane is backwashed, and is washed 1~3min of time, 10~100kPa of admission pressure using air recoil, is made Dynamic Membrane
It completely falls off, dynamic membrane support body component is not necessarily to regular chemical cleaning.
2. a kind of dynamic film sewage treatment system for the processing of lavatory fecaluria according to claim 1, it is characterised in that
For the dynamic membrane support body used for 180~250 mesh stainless (steel) wires or nylon wire, structure uses flat, tubular type or doughnut
One or more of formula, using the immersion method of operation.
3. a kind of dynamic film sewage treatment system for the processing of lavatory fecaluria according to claim 1, it is characterised in that
About 10~30 μm of diatomite average grain diameter.
4. a kind of dynamic film sewage treatment system for the processing of lavatory fecaluria according to claim 1, it is characterised in that
Micropore gas explosion bubble diameter 5mm~8 mm.
5. a kind of dynamic film sewage treatment system for the processing of lavatory fecaluria according to claim 1, it is characterised in that
The adjusting frequency of frequency modulator is 0.1~40Hz.
6. a kind of dynamic film sewage treatment system for the processing of lavatory fecaluria according to claim 1, it is characterised in that
Adjusting amplitude is 0~10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810185593.1A CN108380046A (en) | 2018-03-07 | 2018-03-07 | A kind of dynamic film sewage treatment system for the processing of lavatory fecaluria |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810185593.1A CN108380046A (en) | 2018-03-07 | 2018-03-07 | A kind of dynamic film sewage treatment system for the processing of lavatory fecaluria |
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| CN108380046A true CN108380046A (en) | 2018-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810185593.1A Pending CN108380046A (en) | 2018-03-07 | 2018-03-07 | A kind of dynamic film sewage treatment system for the processing of lavatory fecaluria |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112573623A (en) * | 2020-12-11 | 2021-03-30 | 南京信息工程大学 | Continuous dynamic membrane system operation device and working method thereof |
| CN115321712A (en) * | 2022-08-31 | 2022-11-11 | 上海市农业科学院 | Breeding wastewater treatment method and breeding waste utilization method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417273A (en) * | 2011-10-10 | 2012-04-18 | 北京建筑工程学院 | Dynamic membrane purifying reactor and method for removing ammonia nitrogen and organic matters from reclaimed water |
| CN102583713A (en) * | 2012-02-27 | 2012-07-18 | 同济大学 | Integrated bioaugmenting burned diatomite dynamic membrane gravity flow effluent-discharging drinking water purification process |
| CN102976498A (en) * | 2012-11-28 | 2013-03-20 | 同济大学 | Microalgae dynamic membrane recovery process |
| WO2015069190A1 (en) * | 2013-11-08 | 2015-05-14 | Nanyang Technological University | A membrane filtration module |
| CN107376652A (en) * | 2017-08-09 | 2017-11-24 | 同济大学 | A kind of grade scissoring vibration film device for being stably controlled fouling membrane |
-
2018
- 2018-03-07 CN CN201810185593.1A patent/CN108380046A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417273A (en) * | 2011-10-10 | 2012-04-18 | 北京建筑工程学院 | Dynamic membrane purifying reactor and method for removing ammonia nitrogen and organic matters from reclaimed water |
| CN102583713A (en) * | 2012-02-27 | 2012-07-18 | 同济大学 | Integrated bioaugmenting burned diatomite dynamic membrane gravity flow effluent-discharging drinking water purification process |
| CN102976498A (en) * | 2012-11-28 | 2013-03-20 | 同济大学 | Microalgae dynamic membrane recovery process |
| WO2015069190A1 (en) * | 2013-11-08 | 2015-05-14 | Nanyang Technological University | A membrane filtration module |
| CN107376652A (en) * | 2017-08-09 | 2017-11-24 | 同济大学 | A kind of grade scissoring vibration film device for being stably controlled fouling membrane |
Non-Patent Citations (1)
| Title |
|---|
| 雷乐成等: "《污水回用新技术及工程设计》", 31 August 2002, 化学工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112573623A (en) * | 2020-12-11 | 2021-03-30 | 南京信息工程大学 | Continuous dynamic membrane system operation device and working method thereof |
| CN115321712A (en) * | 2022-08-31 | 2022-11-11 | 上海市农业科学院 | Breeding wastewater treatment method and breeding waste utilization method |
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| CB03 | Change of inventor or designer information |
Inventor after: Zhou Xuefei Inventor after: Zhang Yalei Inventor after: Chu Huaqiang Inventor after: Shen Zheng Inventor after: Yu Zhenjiang Inventor after: Jiang Shuhong Inventor after: Gao Yishan Inventor before: Shen Zheng Inventor before: Zhang Yalei Inventor before: Yu Zhenjiang Inventor before: Zhou Xuefei Inventor before: Gao Yishan |
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Application publication date: 20180810 |
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