CN201154940Y - High-efficiency wastewater treatment and reuse integrated device - Google Patents
High-efficiency wastewater treatment and reuse integrated device Download PDFInfo
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- CN201154940Y CN201154940Y CNU2008200825042U CN200820082504U CN201154940Y CN 201154940 Y CN201154940 Y CN 201154940Y CN U2008200825042 U CNU2008200825042 U CN U2008200825042U CN 200820082504 U CN200820082504 U CN 200820082504U CN 201154940 Y CN201154940 Y CN 201154940Y
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- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000012528 membrane Substances 0.000 claims abstract description 50
- 238000002156 mixing Methods 0.000 claims abstract description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000001301 oxygen Substances 0.000 claims abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 7
- 239000000919 ceramic Substances 0.000 claims description 40
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 claims description 36
- 238000001914 filtration Methods 0.000 claims description 17
- 230000000630 rising effect Effects 0.000 claims description 11
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- 239000000758 substrate Substances 0.000 claims description 6
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- 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
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- Biological Treatment Of Waste Water (AREA)
- Activated Sludge Processes (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
本实用新型公开了一种高效废水处理及回用集成装置，包括调节池、设有供氧装置的气水混合罐、内置悬浮填料的移动床生物膜反应器、陶粒生物滤罐、膜过滤单元，调节池与气水混合罐间设有加压泵，所述气水混合罐、移动床生物膜反应器、陶粒生物滤罐、膜过滤单元间依次通过设有电磁阀的连通管连通，所述移动床生物膜反应器、陶粒生物滤罐、膜过滤单元上均设有排放管路及反冲洗管路，所述膜过滤单元上设有出水管。这样的连通结构，使得气水混合罐、移动床生物膜反应器、陶粒生物滤罐、膜过滤单元均处于有压的工作状态，比通常单独处理工艺具有更强的生化作用效果，使活性污泥降解污染物质更迅速更彻底。
The utility model discloses an integrated device for high-efficiency wastewater treatment and reuse, which comprises a regulating tank, an air-water mixing tank provided with an oxygen supply device, a moving bed biofilm reactor with built-in suspended filler, a ceramsite biological filter tank, and a membrane filter tank. unit, a booster pump is installed between the regulating tank and the gas-water mixing tank, and the gas-water mixing tank, moving bed biofilm reactor, ceramsite biofilter tank, and membrane filtration unit are sequentially connected through connecting pipes equipped with solenoid valves , the moving bed biofilm reactor, the ceramsite biofilter tank, and the membrane filtration unit are all provided with a discharge pipeline and a backwash pipeline, and the membrane filtration unit is provided with an outlet pipe. Such a connected structure makes the gas-water mixing tank, moving bed biofilm reactor, ceramsite biofilter tank, and membrane filtration unit all in a pressurized working state, which has a stronger biochemical effect than the usual single treatment process, making the activity Sludge degrades pollutants faster and more thoroughly.
Description
Technical field
The utility model relates to the integrated and reclamation set of wastewater treatment, and its main application fields is the advanced treatment and the reuse of middle and high concentration organic waste waters such as food, alcohol, beverage, beer, textile printing and dyeing, organic chemical industry.
Background technology
Organic waste water to middle and high concentration, treatment process commonly used mainly contains biochemistry, materialization etc., but these at present general methods are in the practical application in industry process, what all be difficult to economy realizes advanced treatment to waste water, the ubiquity contaminant removal efficiency is low, working cost is high, effluent characteristics low and greatly ratio be back to problems such as production; Simultaneously existing method has also that the facility floor space is big, long processing period, problems such as processing cost height.In the face of world today's water resources shortage and water pollution simultaneously and a difficult problem of depositing, low-cost and efficiently handle waste water, making it reach reuse has become the task of top priority.
In recent years biomembrance process often by Application of composite in Activated Sludge Process, make biological treatment system remove aspect the organic pollutant more effective.In this type of technology, MBBR (Moving-bed biofilm reactor, be called for short MBBR) be a widely used new technology, it is the problem in order to solve Sewage Plant traditional activated sludge process sludge settling difficulty, easily to run off the earliest, but because apposition growth microbial film on the carrier that in reactor, suspends, the microbial film sludge age is longer simultaneously, and the removal of also having strengthened nitrogen when high-carbon is removed ability is being proposed by the system that makes.Domestic and international many studies have shown that [H Odegaard, BRusten, T Westrum.New Moving Bed Biofilm Reactor-Application andResults[J] .Wat.Sci.Tech., 1994,29 (10 ~ 11), Zhang Jingli etc. mobile biomembrane process characteristics, present Research and development. industrial safety and environmental protection, 2003,4 (29): 13 ~ 15], MBBR is remarkable to the effect of phosphorus and nitrogen in processing sanitary sewage and the industrial sewage.
Pressure Biochemical Reactor is under pressure state, adopts encloses container to carry out pressurized aeration sewage is carried out a biological disposal upon.With respect to traditional aeration, it uses and with respect to non-pressurized 3 ~ 5 times of aeration pressure reactor is carried out oxygenation, therefore, oxygen strengthens greatly to the efficient that microorganism shifts in the mixed solution, thereby can improve the activated sludge concentration in the reactor, help the propagation of active sludge microorganism and organic degraded.Compare with traditional aeration, Pressure Biochemical Reactor has following characteristics: 1, oxygen transfer efficiency height.2, suspended sediment concentration MLSS value is higher.3, sludge volume index SVI value is lower, and sludge yield is few.4, anti-shock loading is strong.Domestic have many scholars to carry out research as (Zhang Hua at pressure biochemistry, Tian Qing, Chen Jihua. the applied research [J] of pressurization oxygen enrichment biological activated carbon in alkali decrement dyeing and printing sewage advanced treatment. water supply and drainage, 2004,30 (4): 46 ~ 49), but be independent technology basically, the advantage of pressure biochemistry is not obvious.
The application of membrane separation technique in water treatment in recent years is general day by day, application of membrane in Waste Water Treatment, can be omitted settling system, reduce system's floor space, improve effluent quality, strengthen the stability of Waste Water Treatment when increasing activated sludge concentration.Along with the flat raising of system film water, the price of film descends greatly, but membrane pollution problem has influenced the steady running of film system greatly, and it is the major cause that influences the membrane technique economy and apply that film pollutes.
The utility model content
Technical problem to be solved in the utility model just provides a kind of compact construction, system stability, processing efficiency height, efficient wastewater treatment integrating device that energy consumption is low, its integrated bio degraded, absorption and physical filtering technology, have the biochemical action effect stronger than common individual curing technology, make active sludge pollution degradation material rapider more thorough, progressively isolate cleaning water with reuse.
In order to solve the problems of the technologies described above: the utility model adopts following technical scheme: efficient wastewater treatment and reuse integrating device, it is characterized in that: comprise equalizing tank, be provided with the air water mixing tank of apparatus of oxygen supply, the MBBR of built-in floating stuffing, the ceramic aggregate biological filter tank, membrane filter unit, be provided with force (forcing) pump between equalizing tank and air water mixing tank, described air water mixing tank, MBBR, the ceramic aggregate biological filter tank, be communicated with by the communicating pipe that is provided with magnetic valve successively between membrane filter unit, described MBBR, the ceramic aggregate biological filter tank, be equipped with discharge pipe and counter-flushing pipeline on the membrane filter unit, described membrane filter unit is provided with rising pipe.Such connectivity structure, make air water mixing tank, MBBR, ceramic aggregate biological filter tank, membrane filter unit all be in the working order that pressure is arranged, have stronger biochemical action effect than common individual curing technology, make active sludge pollution degradation material rapider more thorough.
Usually, the middle water of part or all of discharge pipe discharging from MBBR, ceramic aggregate biological filter tank, membrane filter unit can be back to equalizing tank and carry out secondary treatment.In the utility model it is optimized design, the return line that is communicated with equalizing tank is set on MBBR and membrane filter unit, rationally control.
Described membrane filter unit comprises housing, be located at the intravital film pipe of shell and be located at the central collection tube of film tube hub.The magnetic valve of membrane filter unit water inlet pipe is the decompression type magnetic valve.Film pipe in the described membrane filter unit is the organic ultra-filtration membrane of low-cost PVC alloy tubule formula, and molecular weight cut off is 10～15 dalton, internal diameter 1.7～2.0mm external diameter 2.2～2.6mm, pure water flux 300～400L/m
2H.
On the communicating pipe of ceramic aggregate biological filter tank, also be provided with rising pipe one, can discharge the waste water that meets certain national processing standard, reach the purpose that branch matter is handled waste water.Be convenient transportation, described ceramic aggregate biological filter tank is horizontal design.Filtering layer in the ceramic aggregate biological filter tank comprises substrate layer and is located at the haydite filtering layer of the different-grain diameter on substrate layer top.The tap density of the haydite filtering layer in the ceramic aggregate biological filter tank is 0.3～0.9g/cm3.
Operating pressure in the described MBBR is 0.4～0.5MPa, and built-in floating stuffing, its diameter are 100～150mm, and density is 0.8～0.98g/cm3, and the admission space ratio is 70%～75%.Be convenient transportation, described MBBR is horizontal design.
Dress soft or hard filler in the described equalizing tank, the admission space ratio is 30%～50%.
The utility model adopts technique scheme, integrated bio degraded, absorption and physical filtering technology, compact construction, processing efficiency height, system effect is stable, energy consumption is low, have the biochemical action effect stronger than common individual curing technology, make active sludge pollution degradation material rapider more thorough, progressively isolate cleaning water with reuse.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the system architecture synoptic diagram of efficient wastewater treatment of the utility model and reuse integrating device.
Embodiment
As shown in Figure 1, be efficient wastewater treatment of the present utility model and reuse integrating device, comprise equalizing tank 12, apparatus of oxygen supply 2, force (forcing) pump 13, air water mixing tank 14, MBBR 15, take the ceramic aggregate biological filter tank 17 of water pipe 1 out of, take the membrane filter unit 21 of water pipe 2 22 out of, described air water mixing tank 14, MBBR 15, ceramic aggregate biological filter tank 17,21 of membrane filter units are the communicating pipe 4 by being provided with magnetic valve 01 successively, 7,10 are communicated with, MBBR 15, ceramic aggregate biological filter tank 17, be respectively equipped with delivery pipe 16 on the membrane filter unit 21,18,20 and counter-flushing pipeline 5,8,11, on MBBR and membrane filter unit, also be provided with the return line 6 that is communicated with equalizing tank, 9, at MBBR, the ceramic aggregate biological filter tank, membrane filter unit also all is provided with tensimeter or pressure monitoring device and relief valve device.Like this, under the effect of force (forcing) pump 13, all being in when MBBR 15, ceramic aggregate biological filter tank 17, membrane filter unit 21 3 cell operation has pressure condition.
MBBR 15 built-in floating stuffings 01, filler admission space ratio is 70 ~ 75%, operating pressure 0.4 ~ 0.5MPa, communicating pipe 4, delivery pipe 16 are established in moving-bed membrane reactor 15 belows, and counter-flushing pipeline 5, return line 6, communicating pipe 7 are established in the top; Filtering layer in the ceramic aggregate biological filter tank 17 comprises substrate layer 04 and the different-grain diameter haydite filtering layer 05 that is located at substrate layer top, and ceramic aggregate biological filter tank 17 belows are provided with communicating pipe 7, delivery pipe 18, and the top is provided with backwash tube 8, communicating pipe 10.Described membrane filter unit 21 comprises housing, is located at the intravital film pipe 23 of shell, the central collection tube 24 that is located at the film tube hub, delivery pipe 20, tensimeter etc., communicating pipe 10 water inlet is filtered through film pipe 23 and is entered central collection tube 24, and central collection tube 24 connects rising pipe 22.MBBR 15 by return line 6 with 50～80% effluent recycling to equalizing tank 12, all the other are 20 ~ 50% by causing ceramic aggregate biological filter tank 17 communicating pipe 7, membrane filter unit 21 feed-water ends are positioned at the bottom, two-way is divided in the water side, one the tunnel is that film sees through liquid, discharges from rising pipe 2 22, and another road water outlet loops back equalizing tank 12 by return line 9,02 is the water inlet water-distributing device among the figure, and 03 is effluent collection device.
Filling soft or hard filler in the equalizing tank 12, filler admission space ratio is 30 ~ 50%, its floating stuffing diameter is 100 ~ 150mm, density is about 0.8 ~ 0.98g/cm3, the haydite tap density is 0.3～0.9g/cm3 in the ceramic aggregate biological filter tank 17, have filtration, absorption and biological degradation simultaneously, can filter pollution substance above 10 microns; Film pipe in the membrane filter unit 21 is low-cost, the organic ultra-filtration membrane of high-intensity PVC alloy tubule formula, and molecular weight cut off is 10 ~ 15 dalton, internal diameter 1.7 ~ 2.0mm external diameter 2.2 ~ 2.6mm, pure water flux 300～400L/m
2H; The ultra-filtration membrane of this structure formation, its caliber is between hollow fiber ultrafiltration membrane and tubular ultra-filtration membrane, and it is high and contamination resistance is strong, the characteristics of regulating flow on a large scale to have packing density, can effectively control concentration polarization, be difficult for stopping up, prolong the scavenging period and the life-span of film.Membrane filter unit adopts the inner pressed water inlet, big flow cross flow filter, and effluent flux is big, and film is difficult for polluting.
Whole process flow is: waste water at first enters wastewater equalization pond 12, in the pond, mix, after topping-up pump 13 pressure boosts are pressed in the air water mixing tank 14, simultaneously in jar, mix molten gas with the pressurized air that apparatus of oxygen supply 2 is sent here, make pressure in jar, keep 0.4 ~ 5.0MPa.Dissolved air water enters horizontal moving bed biofilm reactor 15 by water inlet pipe, carries out aerobic reaction in reactor.Pressure in the container is non-pressurized 4 ~ 5 times, has increased the dissolved oxygen concentration in the water greatly, makes that oxygen strengthens greatly to the efficient that microorganism shifts in the mixed solution, helps the propagation of active sludge microorganism and to organic degraded.Owing to be in the pressure environment, the dissolved oxygen in the water may penetrate into the microbial film internal layer, and microbial film is loose shape, has not only improved degradation rate, and the mud that thereupon produces also significantly reduces, and the pressure-controlling of this reactor is about 4.0 ~ 5.0MPa.50 ~ 80% of MBBR water outlet is back to equalizing tank 12,20 ~ 50% by return line 6 and causes ceramic aggregate biological filter tank 17, to remove contained suspended substance.In this stage, haydite not only plays and cuts dirty filteration, also owing to be in oxygen-enriched environment, also can play the bio-carrier effect, when waste water passes through, and the pollution substance in the aerobic microbiological while degradable water.Membrane filter unit 21 is delivered in the water outlet of ceramic aggregate biological filter tank, and the magnetic valve of membrane filter unit water inlet pipe is the decompression type magnetic valve, to adjust membrane filter unit pressure, maintains about 0.2 ~ 0.3MPa.
Owing to adopted the mode of pressure biochemistry to transform traditional MBBR and ceramic aggregate biological filter tank, efficient improved when aeration intensity increased, and system effect is stable, energy consumption is low.Processing unit cascade utilization dissolved oxygens at different levels and pressure energy in the system, supporting required drive machinery is simple, the usefulness height.
Embodiment one
The sanitary wastewater of CODcr300 ~ 400mg/l is mixed adjusting at equalizing tank 12, owing in the equalizing tank soft or hard filler has been installed, and have super-saturated dissolved oxygen in the dissolved air water that refluxes, waste water has just obtained partly purifying degraded in this stage.Then waste water is by the laggard air water mixing tank 14 of force (forcing) pump 13 pressurizations, waste water and pressurized air mix under jet action repeatedly, final blending is dissolved into super-saturated dissolved air water, dissolved air water is delivered to MBBR 15 through communicating pipe 4, and waste water carries out the organic matter degradation of superelevation speed in the MBBR 15 that these peculiar conditions such as pressure, molten gas, oxygen enrichment and high-density floating stuffing are arranged.Its water outlet one tunnel is back to equalizing tank through return line 6, and the ceramic aggregate biological filter tank is delivered to through communicating pipe 7 in another road, the main suspended substance of removing in the water in the ceramic aggregate biological filter tank.Water inlet is through the high efficiency filter of substrate layer, many particle diameters haydite filtering layer, pollution substance in the detention fluid more than 10 microns, simultaneously in the specific environment of molten gas, pressure and oxygen enrichment, filtrate in the ceramic aggregate biological filter tank plays a part bio-carrier again simultaneously, filtering the continuation simultaneously the pollutent in the water is degraded.The water outlet of this reactor is delivered to membrane filter unit 21 through communicating pipe 10, is provided with simultaneously rising pipe 1 on communicating pipe 10 in addition, meets the waste water of certain national processing standard after can first discharge unit ceramic aggregate biological filter tank handling, and reaches the purpose that branch matter is handled waste water.Have the ceramic aggregate biological filter tank to do pre-filtering before the membrane filtration, and the original pressure of utilisation system carries out big flow, inner pressed cross flow filter, can effectively control concentration polarization, improve the contamination resistance of film, good filtration effect prolongs cleaning interval of film.Membrane filter unit goes out the moisture two-way, and one the tunnel is rising pipe 22, and one the tunnel is cross-flow backwater backflow equalizing tank.The pressure of control MBBR is about 0.47MPa, the backflow water yield 50%, and the pressure of control ceramic aggregate biological filter tank 17 is about 4.0MPa.Film unit pressure is about 3.0MPa.Ceramic aggregate biological filter tank water outlet CODcr is 50mg/l, and membrane filtration water outlet CODcr is 20mg/l.
Embodiment two
To still carry out feeding equalizing tank after coagulating sedimentation is handled through anaerobic treatment CODcr, pass through MBBR 15 successively, ceramic aggregate biological filter tank 17 and film processing unit 21 up to the 1000mg/l slaughterhouse wastewater.The pressure of control MBBR is about 0.47MPa, the backflow water yield 60%, and the pressure of control ceramic aggregate biological filter tank 17 is about 4.0MPa, film unit pressure is about 3.0MPa.Floating stuffing diameter 100 ~ 150mm, density is 0.8 ~ 0.98g/cm3, haydite tap density 0.3～0.9g/cm3.Via the high efficiency filter on bottom, many particle diameters haydite filtering layer and top layer, the pollution substance in the detention fluid more than 10 microns, the water part is through rising pipe one 19 dischargings, and part is delivered to membrane filter unit 21, obtains reuse water by rising pipe 22.Pressure ceramic aggregate biological filter tank water outlet CODcr is 75mg/l after testing, and BOD5 is 29.5mg/l, and SS is 85mg/l, and membrane filter unit water outlet CODcr is 24.3mg/l for 55mg/l BOD5, and SS is 35mg/l.
Embodiment three
To meet the dyeing waste water of textile dyeing and finishing industrial pollutants first discharge standard (GB4287-92) through biochemical treatment, and carry out entering equalizing tank after the pre-ozone oxidation, influent quality CODcr is 100mg/l, and SS is 70mg/l, about 40 times of colourities.The pressure of control MBBR 15 is about 0.47MPa, the backflow water yield 80%, and the pressure of control ceramic aggregate biological filter tank 17 is about 4.0MPa, film unit pressure is about 3.0MPa.Floating stuffing diameter 100 ~ 150mm, density is 0.8 ~ 0.98g/cm3, haydite tap density 0.3～0.9g/cm3.Via the high efficiency filter of bottom, many particle diameters haydite filtering layer, the pollution substance in the detention fluid more than 10 microns, membrane filter unit 21 is delivered in water outlet, obtains reuse water by rising pipe 22.Membrane filter unit water outlet CODcr is 35mg/l after testing, and BOD5 is 10.5mg/l, and SS is 20mg/l, about 10 times of colourities.
MBBR, ceramic aggregate biological filter tank, membrane filter unit are existing common structure in the utility model, and it also can adopt other existing common structure to replace, and does not limit to and foregoing description, and wherein counter-flushing pipeline is a prior art, is not described further.
Claims (10)
1, efficient wastewater treatment and reuse integrating device, it is characterized in that: comprise equalizing tank (12), be provided with the air water mixing tank (14) of apparatus of oxygen supply (2), the MBBR of built-in floating stuffing (15), ceramic aggregate biological filter tank (17), membrane filter unit (21), be provided with force (forcing) pump (13) between equalizing tank and air water mixing tank, described air water mixing tank, MBBR, the ceramic aggregate biological filter tank, communicating pipe (4 by being provided with magnetic valve successively between membrane filter unit, 7,10) be communicated with, described MBBR, the ceramic aggregate biological filter tank, be equipped with discharge pipe (16 on the membrane filter unit, 18,20) and counter-flushing pipeline (5,8,11), described membrane filter unit is provided with rising pipe (22).
2, according to described efficient wastewater treatment of claim 1 and reuse integrating device, it is characterized in that: described membrane filter unit comprises housing, be located at the intravital film pipe of shell (23) and be located at the central collection tube (24) of film tube hub.
3, according to described efficient wastewater treatment of claim 1 and reuse integrating device, it is characterized in that: the return line (6,9) that is communicated with equalizing tank (12) is set on MBBR (15) and membrane filter unit (21).
4, according to described efficient wastewater treatment of claim 1 and reuse integrating device, it is characterized in that: on the communicating pipe (10) of ceramic aggregate biological filter tank, also be provided with rising pipe one (19).
5, according to described efficient wastewater treatment of claim 1 and reuse integrating device, it is characterized in that: the filtering layer in the described ceramic aggregate biological filter tank comprises the haydite filtering layer (05) of substrate layer (04) and different-grain diameter; The operating pressure of described ceramic aggregate biological filter tank is 0.4～0.5MPa.
6, according to described efficient wastewater treatment of claim 1 and reuse integrating device, it is characterized in that: the admission space ratio of the built-in floating stuffing in the described MBBR is 70%～75%, and the operating pressure in the MBBR is 0.4～0.5MPa;
7, according to described efficient wastewater treatment of claim 1 and reuse integrating device, it is characterized in that: its diameter of floating stuffing in the described MBBR is 100～150mm, and density is 0.8～0.98g/cm3.
8, according to described efficient wastewater treatment of claim 1 and reuse integrating device, it is characterized in that: filling soft or hard filler in the described equalizing tank, the admission space ratio is 30%～50%.
9, according to described efficient wastewater treatment of claim 5 and reuse integrating device, it is characterized in that: its tap density of haydite filtering layer in the described ceramic aggregate biological filter tank is 0.3～0.9 gram/legislation centimetre;
10, according to described efficient wastewater treatment of claim 2 and reuse integrating device, it is characterized in that: the film pipe in the described membrane filter unit is the organic ultra-filtration membrane of low-cost PVC alloy tubule formula, molecular weight cut off is 10～15 dalton, internal diameter 1.7～2.0mm external diameter 2.2～2.6mm, pure water flux 300～400L/m
2H; The membrane filter unit operating pressure is 0.2～0.3MPa;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200825042U CN201154940Y (en) | 2008-01-23 | 2008-01-23 | High-efficiency wastewater treatment and reuse integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200825042U CN201154940Y (en) | 2008-01-23 | 2008-01-23 | High-efficiency wastewater treatment and reuse integrated device |
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| CN201154940Y true CN201154940Y (en) | 2008-11-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343130B (en) * | 2008-01-23 | 2010-11-24 | 浙江四通环境工程有限公司 | Integrated device for treating and recycling wastewater |
| CN105000762A (en) * | 2015-08-20 | 2015-10-28 | 中冶华天工程技术有限公司 | Water pollutant reducing and water quality improving method for river |
-
2008
- 2008-01-23 CN CNU2008200825042U patent/CN201154940Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343130B (en) * | 2008-01-23 | 2010-11-24 | 浙江四通环境工程有限公司 | Integrated device for treating and recycling wastewater |
| CN105000762A (en) * | 2015-08-20 | 2015-10-28 | 中冶华天工程技术有限公司 | Water pollutant reducing and water quality improving method for river |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20081126 Effective date of abandoning: 20080123 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20081126 Effective date of abandoning: 20080123 |