CN105327541B - A kind of low discharge sewage pre-treatment device - Google Patents
A kind of low discharge sewage pre-treatment device Download PDFInfo
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- CN105327541B CN105327541B CN201510726888.1A CN201510726888A CN105327541B CN 105327541 B CN105327541 B CN 105327541B CN 201510726888 A CN201510726888 A CN 201510726888A CN 105327541 B CN105327541 B CN 105327541B
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- 239000010865 sewage Substances 0.000 title claims abstract description 56
- 238000002203 pretreatment Methods 0.000 title claims abstract description 16
- 239000002351 wastewater Substances 0.000 claims abstract description 23
- 238000005273 aeration Methods 0.000 claims description 11
- 238000005276 aerator Methods 0.000 claims description 9
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 239000004576 sand Substances 0.000 abstract description 12
- 239000002893 slag Substances 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 230000006870 function Effects 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 238000009954 braiding Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/23—Supported filter elements arranged for outward flow filtration
- B01D29/27—Filter bags
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- 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
- C02F2303/02—Odour removal or prevention of malodour
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The present invention relates to technical field of sewage, disclose a kind of low discharge sewage pre-treatment device, it includes mesh bag, the mesh bag includes inside and outside two layers, internal layer mesh bag is to dredge mesh mesh bag, outer layer mesh bag is divided into two parts, the top of the outer layer mesh bag up and down and is divided into fine mesh mesh bag, and bottom is divided into close mesh mesh bag；The mesh bag is connected with wastewater influent pipeline.The present invention merges the function of three workshop sections of thick grid slag, thin grid slag and the sand setting processing of sewage disposal pretreatment to be completed in a double-deck mesh bag, is greatly saved for the equipment investment in terms of the intermediate item pretreatment.
Description
Technical field
The present invention relates to technical field of sewage, more particularly to a kind of low discharge sewage pre-treatment device.
Background technology
Sewage-treatment plant is generally divided into three parts：Coarse rack, fine fack, setting pot.For fairly large sewage
For treatment plant, three coarse rack, fine fack and setting pot workshop sections should build respectively, and each set automated machine equipment.
But to low discharge sewage, such as country sewage, if three sections are respectively adopted mechanized equipment, on the one hand in civil engineering and equipment purchase
Need to expend great amount of investment, extremely mismatched with the investment capacity of low discharge sewage, especially country sewage, on the other hand, mesh
The said equipment that equipment manufacturer as previous produces, be limited to size can not it is too small caused by can not process, product that it is produced is real
Border disposal ability can significantly exceed the ability of its application, for example, a wide fine fack of 0.5m may apply to 10,000 ton days
Sewage plant in, and at present in the design of country sewage, because designer can not find the smaller fine fack of width, thus often
Apply it in 1000 tons or so of sewage treatment facility, which results in the waste of investment, is difficult to numerous rural subscribers
Undertake high investment cost.
Traditional pretreatment section, its debris pulled out clearly, including thickness grid slag and sand setting, all it is attached with thereon a large amount of organic
Pollutant, the meeting emitting offensive odor in clear drag for, influences work and living environment, if its heap buried place can not be handled well, meeting
Secondary pollution is caused to surrounding water or underground water source.
The content of the invention
(1) technical problems to be solved
The technical problem to be solved in the present invention is how to facilitate low discharge sewage disposal, reduces investment cost.
(2) technical scheme
In order to solve the above-mentioned technical problem, the present invention provides a kind of low discharge sewage pre-treatment device, and it includes mesh bag, institute
Mesh bag is stated including inside and outside two layers, internal layer mesh bag is to dredge mesh mesh bag, and outer layer mesh bag is divided into two parts up and down, the outer layer mesh bag
Top is divided into fine mesh mesh bag, and bottom is divided into close mesh mesh bag；The mesh bag is connected with wastewater influent pipeline.
Wherein, the mesh bag can be formed by nylon or stainless steel wire braiding, and the outer layer mesh bag is more than internal layer mesh bag.
Preferably, the mesh diameter of mesh mesh bag is dredged between 10-30mm.
Preferably, between 1-5mm, the mesh diameter of the close mesh mesh bag exists the mesh diameter of the fine mesh mesh bag
Below 0.5mm.
Preferably, the height of the outer layer mesh bag is in below 800mm, and maximum gauge is in below 500mm.
Wherein, the suitable for reading of the mesh bag is to tighten up mouth.
Specifically, in addition to elbow is buckled, the mesh bag is detachably connected by the elbow that buckles with wastewater influent pipeline
Connect.
Further, it is described to buckle elbow and be arranged to extension mouth with one end that the mesh bag is connected, it is described buckle elbow with
One end of wastewater influent pipeline connection, which is provided with, buckles flange and Hook fastener, the wastewater influent pipeline with described to buckle elbow corresponding
One end of connection, which is provided with, accepts flange and support hook, described to buckle flange and accept flange docking, and the Hook fastener buckles
On the undertaking flange, the support hook hook be located at it is described buckle on flange, connected so as to realize sewage conduct with elbow is buckled
Together.
Wherein, the mesh bag is suspended in wastewater biochemical pool by buckling elbow, and the bottom of pond of the wastewater biochemical pool is provided with
Aerator, the wastewater biochemical pool are externally provided with air blower, and the air blower is connected with aerator.
Further, the aerator is aeration head.
(3) beneficial effect
Compared with prior art, the present invention has advantages below：
A kind of low discharge sewage pre-treatment device provided by the invention, it includes mesh bag, the mesh bag include it is inside and outside two layers,
Internal layer mesh bag is to dredge mesh mesh bag, undertakes coarse rack function, and outer layer mesh bag is divided into two parts up and down, the top of the outer layer mesh bag
It is divided into fine mesh, undertakes fine fack function, bottom is divided into close mesh, undertakes setting pot function；The mesh bag and sewage water inlet pipe
Road is connected.The function for three workshop sections that this equipment pre-processes sewage disposal, merges and is completed in a double-deck mesh bag, significantly
Save for the equipment investment in terms of the intermediate item pretreatment；
Mesh bag is installed in wastewater biochemical pool, in the presence of aerobic biochemical, can effectively be degraded on intercepted debris
The organic pollution of attachment, mesh bag is intercepted debris and more clean, be convenient to clean, it also avoid the pollution to environment.
Brief description of the drawings
Fig. 1 is a kind of structural representation of low discharge sewage pre-treatment device of the present invention；
Fig. 2 is a kind of schematic diagram of low discharge sewage pre-treatment device of the present invention at work.
In figure：1st, wastewater biochemical pool；2nd, mesh bag；3rd, aeration zone；4th, settling zone；5th, mesh mesh bag is dredged；6th, fine mesh mesh bag；
7th, close mesh mesh bag；8th, mouth is tightened up；9th, elbow is buckled；10th, flange is buckled；11st, Hook fastener；12nd, flange is accepted；13rd, support hook；
14th, extension mouth；15th, air blower；16th, aeration head.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Following instance
For illustrating the present invention, but it is not limited to the scope of the present invention.
In the description of the invention, it is necessary to explanation, term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right
The limitation of the present invention.
For low discharge sewage, especially country sewage or the sewage of small town community, according to relevant design specification, often
1000m3Municipal wastewater can typically produce 0.01-0.1m3Thick grid slag and 0.1m3Thin grid slag, can also produce 0.015-
0.03m3Sand setting, total debris volume is up to 0.2m3.As shown in figure 1, the invention provides a kind of low discharge sewage disinfection treatment
Device, it includes mesh bag 2, and for the mesh bag 2 including inside and outside two layers, internal layer mesh bag is to dredge mesh mesh bag 5, is mainly intercepted larger miscellaneous
Thing, equivalent to coarse rack function；Outer layer mesh bag is divided into two parts, the top of the outer layer mesh bag up and down and is divided into fine mesh mesh bag 6,
Less debris is mainly intercepted by the fine mesh mesh bag 6 in sewage, undertakes fine fack function, the mesh thickness of fine mesh mesh bag 6
Determined according to sewage quality and water, water is less or water in debris content it is less, can use compared with fine mesh, it is on the contrary then use
Compared with coarse mesh；Bottom is divided into close mesh mesh bag 7, and major function is to intercept and carry sand setting；The mesh bag and sewage water inlet pipe
Road is connected, for intercepting the impurity such as the thick grid slag in sewage, thin grid slag and sand setting.So as to realize three of sewage disposal pretreatment
The function of workshop section merges to be completed in a double-deck mesh bag, is greatly saved and is thrown for the equipment in terms of the intermediate item pretreatment
Money.
Wherein, the mesh bag 2 can be by nylon or stainless steel wire braiding into can also be by other corrosion-resistant material systems
Into the outer layer mesh bag is more than internal layer mesh bag, in order to provide memory space for sand setting.
Preferably, the mesh diameter of mesh mesh bag 5 is dredged between 10-30mm, preferably 20m；The fine mesh mesh bag 6
Mesh diameter is between 1-5mm, preferably 3mm, and the mesh diameter of the close mesh mesh bag 7 is in below 0.5mm.
The application intercepts grid slag in the form of mesh bag 2, need to take into full account the complexity of human users.For artificial
Speech, an operating personnel will easily lift a mesh bag, it is preferable that the height of the outer layer mesh bag is in below 800mm, maximum
Diameter is in below 500mm.Its debris that can be accommodated can about reach 0.1m3, equivalent to the thickness grid section dirt of 500 ton days
Ability.Such as consider the demand of sand setting, the residence time should be in more than 30s in bag for sewage, and the sewage quantity of 500 ton days is above-mentioned
Residence time about 20s in the device of size.In present apparatus practical application, because the debris of pretreatment is all concentrated in mesh bag 2, net
2 inside debris of bag have stronger interception function to the inorganic grains of sand in sewage in itself, and the depth of mesh bag 2 is significantly smaller than common sink
Sand tank depth, the sand setting time can be greatly shortened, thus disposal ability can properly increase, and 20s residence time can expire
Sufficient sand setting requirement.Amid all these factors, the disposal ability of this mesh bag 2 is applied under the sewage disposal scale of 500 ton days compares conjunction
It is suitable, if it is considered that applying this product in slightly large-scale sewage treatment facility, mesh bag size can be suitably increased, and use machine
Tool auxiliary lifting apparatus.For example, treating capacity is in 1000m3During/day, debris amount about 0.2m3/ day, an outer layer mesh bag diameter exist
0.8m highly can meet the processing requirement of one day for 1.2m mesh bag.
For the convenience that mesh bag is taken, in addition to elbow 9 is buckled, the mesh bag buckles elbow 9 and sewage by described
Inlet channel is detachably connected.
Further, it is described to buckle elbow 9 and be arranged to extension mouth 14 with one end that the mesh bag is connected, on the one hand play expansion
The effect of buffering current is dissipated, on the other hand can be strutted mesh bag using the extension mouth 14, it is described to buckle elbow 9 and wastewater influent
One end of pipeline connection, which is provided with, buckles flange 10 and Hook fastener 11, and the wastewater influent pipeline buckles that elbow 9 is corresponding to be connected with described
The one end connect, which is provided with, accepts flange 12 and support hook 13, and flange 10 and the undertaking flange 12 of buckling docks, and the Hook fastener
11 buckle on the undertaking flange 12, the hook of support hook 13 be located at it is described buckle on flange 10, so as to realize sewage conduct
Linked together with elbow 9 is buckled.Elbow 9 is buckled in the presence of the weight with lower section mesh bag of conducting oneself with dignity, makes to buckle the He of flange 10
Accept flange 12 to be closely combined together, prevent sewage from being leaked out from the flange.When mesh bag needs cleaning, only need
Elbow 9 will be buckled to be lifted up, separated with accepting flange 12, you can whole mesh bag is left the water.
Wherein, the suitable for reading of the mesh bag 2 is preferably set to tighten up mouth 8, can will tighten up mouth 8 and be enclosed on and buckle the extension mouth of elbow 9
14 tops tighten, and play a part of hanging mesh bag.
As shown in Fig. 2 the mesh bag is suspended in wastewater biochemical pool 1 by buckling elbow 9, in operation, due to mesh bag 2
The effect of deadweight, it can rest on vertically in biochemistry pool, if the deadweight of mesh bag 2 is not sufficient to ensure that the vertical of mesh bag 2, it may be considered that
Increase counterweight in the suitable position of mesh bag 2, the bottom of pond of the wastewater biochemical pool 1 can be provided with aerator, and the aerator can
Think aeration head 16, the wastewater biochemical pool 1 is externally provided with air blower 15, and the air blower 15 is connected with aerator, for aeration
Device provides source of the gas, in the aeration zone formed below 3 of mesh bag, the oxygen of abundance is provided for mesh bag, the both sides of aeration zone 3 are precipitation
Area 4, facilitates sludge settling.Because mesh bag is installed in wastewater biochemical pool 1, in air blower 15 and the work of the blast aeration of aeration head 16
It is in aerobic state under, in pond, and due to being aerated the effect washed away, the debris that mesh bag is intercepted, including grid slag and sand setting, all
Cleaning can be constantly washed, the organic matter adhered to thereon can be effectively cleaned, and in wastewater biochemical pool 1
With aerobic treatment.Thus it can not only prevent from intercepting in mesh bag producing stink after debris is left the water, also can effectively prevent
Sewage secondary pollution to caused by ground water environment of debris institute band is only pre-processed, while can also suitably increase sewage disposal institute
The carbon source needed, be advantageous to biochemical denitrification and dephosphorization processing.In the presence of biochemistry pool aeration, the mesh of mesh bag is retained miscellaneous
Thing is washed away and vibrated, and so as to effectively slow down aggregation of the debris on mesh bag surface, is delayed the blocking of mesh, is made mesh bag
Cleaning frequency is reduced as far as possible, mitigates the workload of operation worker.
Mesh bag 2 is commonly equipped with more than two, when a mesh bag 2 leaves the water cleaning, it should which another mesh bag 2 is timely
Buckle on the undertaking flange 12 of sewage water inlet pipe, in case debris enters pond.
Mesh bag 2 is in cleaning, it should first mesh bag 2 is left the water, some time is hung, by the moisture of debris in mesh bag 2
Fully drain, then untie and tighten up mouth 8 above mesh bag, network interface is opened, internal layer is dredged into mesh and outer layer fine-structure mesh hole pattern successively
Debris in bag 6 is cleaned to appointed place.Because the debris in mesh bag has been subjected to aerobic treatment, debris free from extraneous odour itself,
Without sewage, the organic pollution on debris surface has also removed substantially, and weight has been greatly reduced, thus quite convenient for cleaning and heap
Put.
The present apparatus can be very good solution integration apparatus pretreatment section function and be difficult to play as being used in integration apparatus
The problem of, its application value is more notable.
As can be seen from the above embodiments, the plant equipment of low discharge sewage disinfection treatment is reduced to Double-level Reticulated by the present invention
Bag, is greatly saved for the equipment investment in terms of the intermediate item pretreatment；
The cleaning difficulty of device has been taken into full account in design, using hung and buckled connected mode, has been easy to the installation of device and takes
Go out cleaning, save manpower and materials；
The mesh of pretreatment mesh bag can give flexibly more selecting according to water quality and quantity situation, can preferably intercept sewage
In debris；
Pretreatment mesh bag is hung in activated sludge biochemical pond, in the presence of aerobic environment, on the debris that is intercepted
Organic matter is made debris clean in itself, is not only convenient for handling, it also avoid by the microorganism degradation in activated sludge biochemical pond
The debris cleaned out impacts to surrounding environment.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (8)
1. a kind of low discharge sewage pre-treatment device, it is characterised in that including mesh bag, the mesh bag includes inside and outside two layers, internal layer
Mesh bag is to dredge mesh mesh bag, and outer layer mesh bag is divided into two parts up and down, and the top of the outer layer mesh bag is divided into fine mesh mesh bag, bottom
It is divided into close mesh mesh bag；The mesh bag is detachably connected by buckling elbow with wastewater influent pipeline, described to buckle elbow and institute
The one end for stating mesh bag connection is arranged to extension mouth, described to buckle one end that elbow is connected with wastewater influent pipeline provided with buckling flange
And Hook fastener, the wastewater influent pipeline are provided with described one end for buckling the corresponding connection of elbow and accept flange and support hook, institute
State and buckle flange and accept flange docking, and the Hook fastener is buckled on the undertaking flange, the support hook hook is located at institute
State and buckle on flange, linked together so as to realize sewage conduct and buckle elbow.
2. low discharge sewage pre-treatment device according to claim 1, it is characterised in that the mesh bag is by nylon or stainless
Braided steel wire forms, and the outer layer mesh bag is more than internal layer mesh bag.
3. low discharge sewage pre-treatment device according to claim 1, it is characterised in that the mesh of the thin mesh mesh bag
Diameter is between 10-30mm.
4. low discharge sewage pre-treatment device according to claim 1, it is characterised in that the mesh of the fine mesh mesh bag
Diameter is between 1-5mm, and the mesh diameter of the close mesh mesh bag is in below 0.5mm.
5. low discharge sewage pre-treatment device according to claim 1, it is characterised in that the height of the outer layer mesh bag exists
Below 800mm, maximum gauge is in below 500mm.
6. low discharge sewage pre-treatment device according to claim 1, it is characterised in that the suitable for reading of the mesh bag is to tighten up
Mouthful.
7. according to the low discharge sewage pre-treatment device described in claim any one of 1-6, it is characterised in that the mesh bag passes through
Buckle elbow to be suspended in wastewater biochemical pool, the bottom of pond of the wastewater biochemical pool is provided with aerator, outside the wastewater biochemical pool
Provided with air blower, the air blower is connected with aerator.
8. low discharge sewage pre-treatment device according to claim 7, it is characterised in that the aerator is aeration
Head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510726888.1A CN105327541B (en) | 2015-10-30 | 2015-10-30 | A kind of low discharge sewage pre-treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510726888.1A CN105327541B (en) | 2015-10-30 | 2015-10-30 | A kind of low discharge sewage pre-treatment device |
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| Publication Number | Publication Date |
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| CN105327541A CN105327541A (en) | 2016-02-17 |
| CN105327541B true CN105327541B (en) | 2017-11-24 |
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| CN201510726888.1A Active CN105327541B (en) | 2015-10-30 | 2015-10-30 | A kind of low discharge sewage pre-treatment device |
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| CN108394996B (en) * | 2018-04-28 | 2023-12-19 | 浦华环保股份有限公司 | Activated sludge integrated sewage treatment device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3109481C2 (en) * | 1981-03-12 | 1985-05-23 | Karl Küfner KG, 7470 Albstadt | Cylindrical filter sleeve, especially for high pressure filters |
| CN2845883Y (en) * | 2005-12-02 | 2006-12-13 | 中国科学院力学研究所 | Fine sand collector at end stage |
| CN201485293U (en) * | 2009-06-04 | 2010-05-26 | 浙江利欧股份有限公司 | Ultraviolet ray sterilizing filter |
| CN201807222U (en) * | 2010-08-31 | 2011-04-27 | 山东亚太森博浆纸有限公司 | Paper pulp waste water filter screen type automatic reverse cleaning filter |
| CN205145740U (en) * | 2015-10-30 | 2016-04-13 | 浦华环保股份有限公司 | Low discharge sewage pretreatment device |
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