CN202717626U - Biological stuffing sewage treatment unit - Google Patents
Biological stuffing sewage treatment unit Download PDFInfo
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- CN202717626U CN202717626U CN2012203690560U CN201220369056U CN202717626U CN 202717626 U CN202717626 U CN 202717626U CN 2012203690560 U CN2012203690560 U CN 2012203690560U CN 201220369056 U CN201220369056 U CN 201220369056U CN 202717626 U CN202717626 U CN 202717626U
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- biological
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- 239000010865 sewage Substances 0.000 title claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 51
- 238000005273 aeration Methods 0.000 claims abstract description 43
- 239000000945 filler Substances 0.000 claims abstract description 31
- 239000010802 sludge Substances 0.000 claims abstract description 20
- 230000003647 oxidation Effects 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims description 24
- 238000001914 filtration Methods 0.000 claims description 5
- 238000003973 irrigation Methods 0.000 claims 1
- 230000002262 irrigation Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 34
- 238000013461 design Methods 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 11
- 238000012856 packing Methods 0.000 description 28
- 239000000463 material Substances 0.000 description 27
- 239000002699 waste material Substances 0.000 description 12
- 230000000630 rising effect Effects 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 7
- 238000011049 filling Methods 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000000813 microbial effect Effects 0.000 description 6
- 239000002957 persistent organic pollutant Substances 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000000249 desinfective effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000001458 anti-acid effect Effects 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
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
-
- 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
- Biological Treatment Of Waste Water (AREA)
Abstract
本实用新型涉及一种污水处理技术，尤其涉及生物填料污水处理技术。一种生物填料污水处理装置，其主要特点包括有在格栅渠中设有格栅，格栅渠通过进水管连通生物氧化池，在生物氧化池中设有曝气管，曝气管与曝气风机相连通；生物氧化池中设有的出水管通过提升泵连通过滤灌，过滤灌的出水管连通储水池。本实用新型是针对小水量污水设计的生物处理技术，兼有污水生物处理中活性污泥法和生物膜法的特点，占地面积小，其结构为生物氧化池、泵坑、储水池连体式设计，结构紧凑，流程简单。且构筑物均为地下式，上建水处理车间，所有设备置于车间内，有效降低了占地面积，基建投资小。设备少，运行方式灵活，操作简单。
The utility model relates to a sewage treatment technology, in particular to a biological filler sewage treatment technology. A biological filler sewage treatment device, the main features of which include a grille in the grille channel, the grille channel is connected to the biological oxidation tank through the water inlet pipe, and an aeration tube is provided in the biological oxidation tank, and the aeration tube is connected with the aeration tank. The air fan is connected; the outlet pipe provided in the biological oxidation tank is connected to the filter tank through the lifting pump, and the outlet pipe of the filter tank is connected to the water storage tank. The utility model is a biological treatment technology designed for small amount of sewage, which has the characteristics of activated sludge method and biofilm method in sewage biological treatment, occupies a small area, and its structure is a combination of biological oxidation pool, pump pit and water storage pool Type design, compact structure, simple process. Moreover, the structures are all underground, and the water treatment workshop is built above, and all the equipment is placed in the workshop, which effectively reduces the occupied area and requires less infrastructure investment. Less equipment, flexible operation mode, simple operation.
Description
Technical field
The utility model relates to a kind of sewage disposal technology, relates in particular to the biologic packing material sewage disposal technology.
Background technology
In recent years, the developing rapidly and human high concentration of industry makes the drinking water source of many countries and regions be subject in various degree pollution.Traditional water technology can not effectively be removed the objectionable impuritiess such as solvability organic pollutants a large amount of in the water, ammonia nitrogen, in order more effectively to remove the various pollutents in the tap water, need to improve traditional water technology.
Biological contact oxidation process in trade effluent, the sanitary sewage disposal, upflow type aerating biological filter and membrane Bio-reactor Technology, it is more efficient water technology, and filler is the core of these techniques, no matter be in aerobic, double oxygen or the anaerobic process, biologic packing material affects biological growth, the whole process of breeding and coming off as microorganism carrier, and its performance directly affects and restricting the effect of processing.Biologic packing material is because of its performance in the water treatment field uniqueness, and water treatment worker both domestic and external develops, develops, produces and use various filler all the time, improves the water technology level.
The domestic packing microbial biofilm of generally selecting is fast, and aging microbial film easily comes off; Stability, require filler can be antiacid, alkali resistant, resistance to oxidation, readily biodegradable is difficult for aging etc.; Oxygen-transfer efficiency is high; Installation and maintenance are convenient; Light weight, physical strength is large; Low price etc.This process selection elastic filler has the heat dispersion height, and resistance is little, and water distribution, gas distribution performance are good, easily long film, specific surface area is large, voidage is high, microorganism growth is good, lower-price characteristic.It is widely used in the advanced treatment of sewage.
Summary of the invention
The purpose of this utility model is to avoid the deficiencies in the prior art that a kind of biologic packing material waste disposal plant is provided.Complicated to solve little water yield sewage treatment facility, the maintenance of the equipment amount is large, unhandy problem.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of biologic packing material waste disposal plant, its principal feature includes in the grid canal and is provided with grid, the grid canal is communicated with bio-oxidation pond by water inlet pipe, be provided with aeration tube in bio-oxidation pond, aeration tube is connected with Aeration fan; The rising pipe that is provided with in the bio-oxidation pond is communicated with to filter by lift pump fills with, and filters the rising pipe of filling with and is communicated with tank.
Described biologic packing material waste disposal plant also includes described aeration tube and account for 25%-70% of whole bio-reaction zone in bio-oxidation pond.Because this pond type designs for the little water yield, amount of inlet water and variation water quality are larger, and be larger to the impact of microbial film and active sludge.Adopt half pond aeration, can make sewage form eddy flow at bio-reaction zone, and increase biologic packing material, filler is done swirling motion with sewage at bio-reaction zone, play the homogeneous effect to sewage quality, the difference that effectively reduces sewage quality changes active sludge and biomembranous shock action.
Described biologic packing material waste disposal plant also includes device and is located at two-layerly, and bio-oxidation pond, pump hole, tank disjunctor are located at subsurface, and lift pump is located in the pump hole; Filter and fill with the top of being located at tank.
Described biologic packing material waste disposal plant, also including has active sludge and filler in bio-oxidation pond, and described filler is elastic filler.
Described biologic packing material waste disposal plant also includes the rising pipe that is provided with and is the perforation rising pipe in bio-oxidation pond.Because the existence of biologic packing material, and biologic packing material proportion is light than water, is suspended in bio-reaction zone after the biofilm.During water outlet, miss with sewage for preventing filler, adopt the water outlet of perforation rising pipe.Sewage is promoted to enter to filter by lift pump through perforated pipe and fills with, and biologic packing material is trapped in the biological reaction tank by perforated pipe.
The beneficial effects of the utility model:
The utility model is the biologic treating technique for the design of little water yield sewage, has the characteristics of activated sludge process and biomembrance process in the biological sewage treatment concurrently.
After former water entered bio-oxidation pond, under aerobic condition, sewage and various microbial population carried out continuous mixed culture, formed active sludge.Utilize biological flocculation and precipitation, the adsorption and oxidation effect of active sludge, to decompose the organic pollutant of removing in the sewage.Simultaneously because the existence of filler, and filler is vesicular structure, and a large amount of microorganisms contact with filler, at filling surface formation microbial film.Because this process using is half pond aeration, flow at the pond internal recycle during padding aeration, both sewage was formed stirring action, so that sewage quality balance, stable in the whole oxidation pond, can utilize again biological adsorption and the oxygenizement of film, with the organic pollutant in the degraded removal sewage.And the microbial film that splits away off contacts with active sludge, forms new active sludge by biological flocculation and precipitation.
The utility model designs for the little water yield, has considered that the little water yield sewage water yield changes characteristics greatly, spatially is complete mixing pit type, therefore, does not need to arrange separately equalizing tank, has reduced to a certain extent construction investment.Simultaneously because flooding quantity is very little, during precipitation water inlet very little to the disturbance of sludge blanket, so precipitate phase can carry out in bio-oxidation pond, do not need to establish independent settling tank again, saved and taken up an area and investment.This shows that this pond type is the design of collecting water from runoff adjusting, bio-oxidation and precipitation one, flow process is simple, and operational management is convenient, adapts to little water yield sewage disposal.
The utility model floor space is little, and its structure is bio-oxidation pond, pump hole, the design of tank body-lined type, compact construction, and flow process is simple.And structures are underground type, on build between water treatment vehicle, all devices places in the workshop, effectively reduces floor space, initial cost is little.Equipment is few, and operation scheme is flexible, and is simple to operate.The utility model only has been equipped with Aeration fan, lift pump, the pressure of conventional biological treatment and has filtered the equipment such as filling, and operation scheme can be realized automatically and manual two kinds of control modes by the control of field control cabinet.Automatically control can according to amount of inlet water, be realized by regulating aeration period, water outlet cycle, recoil cycle etc. by the field control cabinet; Manually control can be by operator by observing the bio-oxidation pool water level by the control of field control button box aeration, water outlet and recoil.
The utility model capacity of resisting impact load is strong, design of the present utility model is the pond type that mixes fully on upper plug-flow of a kind of time and the space, for the large situation of Miniature Sewage Farm water yield fluctuation, this technique can adapt to by adjusting aeration period, water discharging time etc. the variation of the water yield, and therefore fluctuation has stronger adaptive faculty to the water yield.
Each water outlet stage in cycle of the utility model can have has processed water up to standard and has not got rid of; and adopted half pond aeration; filler in the bio-oxidation pond is under the effect of Aeration fan; in bio-oxidation pond, circulate; both guaranteed biological concentration in the bio-oxidation pond; play again stirring action; therefore can dilute neutralization to the sewage that enters bio-oxidation pond; so that concentration of wastewater is relatively stable in the bio-oxidation pond; strong protection the microorganism of active sludge; therefore, this technique has stronger adaptive faculty to variation water quality.
It is little that the utility model produces sludge quantity, the filler of this process using is many hollow structures, a large amount of microorganisms is attached on the filler with biomembranous form, so that the sludge concentration in the sewage is very little, sludge yield is low, water inlet can not produce large disturbance to sludge blanket when precipitating simultaneously, so that can intake simultaneously when water outlet.
The utility model maintenance of the equipment amount is little, and this technique required equipment only has Aeration fan, lift pump and the pressure filter etc. in the conventional biological treatment, and equipment amount is little, and is national standard equipment, and maintenance is little, and is easy to maintenance.
The utility model operation is simple, and this technique is simple owing to flow process, and equipment amount is little, and can realize automatically control, and the scene can arrange 1 managerial personnel or part-time managerial personnel's not timing to patrol and examine; Or according to the sewage amount of inlet water, set aeration time every day, aeration duration, sedimentation time, water discharge time and recoil time, regularly moved about 4-5 of whole cycle hour to execute-in-place by managerial personnel.
Description of drawings
Fig. 1 is signal and the equipment layout synoptic diagram overlooked of the present utility model;
Fig. 2 is signal and the pipeline floor plan synoptic diagram overlooked of the present utility model;
Fig. 3 is the A-A cross-sectional schematic of Fig. 1;
Fig. 4 is the B-B cross-sectional schematic of Fig. 1;
Fig. 5 is the C-C cross-sectional schematic of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used for explaining the utility model, is not be used to limiting scope of the present utility model.
Embodiment 1: a kind of biologic packing material waste disposal plant, and include in grid canal I and be provided with grid 1, grid canal I is communicated with the bio-oxidation pond II by water inlet pipe 2, is provided with aeration tube 3 in the bio-oxidation pond II, and aeration tube 3 is connected with Aeration fan 4; The rising pipe 5 that is provided with in the bio-oxidation pond II filters by lift pump 6 connections and fills with 7, and 7 rising pipe 8 connection tank III are filled with in filtration.
Described aeration tube 3 is to account for 25% of whole bio-reaction zone in the bio-oxidation pond II.
Device is located at two-layer, and bio-oxidation pond II, pump hole IV, tank III disjunctor are located at subsurface, and lift pump 6 is located in the IV of pump hole; Filter filling 7 and be located at the top of tank III.
Active sludge and filler in the bio-oxidation pond II, described filler are elastic filler 9.
The rising pipe 5 that is provided with in the bio-oxidation pond II is the perforation rising pipe.
The biologic packing material sewage water treatment method the steps include:
(1) pretreatment stage: former water enters biological reaction tank after removing floating matter in the sewage via grid;
(2) biological treatment stage: after former water enters the definite water level of biological reaction tank arrival, the beginning blast aeration, because aeration tube accounts for 25% of whole bio-reaction zone in bio-oxidation pond, adopt half pond aeration, can make sewage form eddy flow at bio-reaction zone, and increase biologic packing material, filler is done swirling motion with sewage at bio-reaction zone, play the homogeneous effect to sewage quality, the difference that effectively reduces sewage quality changes active sludge and biomembranous shock action; By active sludge and the biomembranous biological flocculation and precipitation of filling surface, adsorption and oxidation effect, to decompose the organic pollutant of removing in the sewage;
(3) precipitate phase: after former water is removed organic pollutant via aerobic reaction, the aeration that turns off the blast, the active sludge natural sedimentation, filler is suspended in the sewage;
(4) filtration stage: the sewage through biological respinse removal organic pollutant enters the filtration filling through the lift pump lifting, after filtering the further removal of filling SS, enters tank.Because filler is suspended in biological reaction tank, therefore for preventing the leakage of biologic packing material, bio-reaction zone arranges the perforation rising pipe, holds back biologic packing material;
(5) discharging: tank water is qualified discharge after sterilization.
Embodiment 2: a kind of biologic packing material waste disposal plant, described aeration tube 3 are to account for 40% of whole bio-reaction zone in the bio-oxidation pond II.All the other structures are identical with embodiment 1.
The biologic packing material sewage water treatment method the steps include:
(2) biological treatment stage: after former water entered the definite water level of biological reaction tank arrival, the beginning blast aeration because aeration tube accounts for 40% of whole bio-reaction zone in bio-oxidation pond, was adopted half pond aeration.
All the other steps are example 1 simultaneously.
Embodiment 3: a kind of biologic packing material waste disposal plant, described aeration tube 3 are to account for 55% of whole bio-reaction zone in the bio-oxidation pond II.All the other structures are identical with embodiment 1.
The biologic packing material sewage water treatment method the steps include:
(2) biological treatment stage: after former water entered the definite water level of biological reaction tank arrival, the beginning blast aeration because aeration tube accounts for 55% of whole bio-reaction zone in bio-oxidation pond, was adopted half pond aeration.
All the other steps are example 1 simultaneously.
Embodiment 4: a kind of biologic packing material waste disposal plant, described aeration tube 3 are to account for 70% of whole bio-reaction zone in the bio-oxidation pond II.All the other structures are identical with embodiment 1.
The biologic packing material sewage water treatment method the steps include:
(2) biological treatment stage: after former water entered the definite water level of biological reaction tank arrival, the beginning blast aeration because aeration tube accounts for 70% of whole bio-reaction zone in bio-oxidation pond, was adopted half pond aeration.
All the other steps are with embodiment 1.
Experimental example 1:
Biologic packing material waste disposal plant and method thereof, treatment scale, designed water is 200m
3/ d, the design and operation time considers that by 12 hours the sewage average discharge is 16.6m
3/ h, hourly variation factor gets 2, actual design water yield 33.3m
3/ h.
(1) grid canal: 1,
The underground type skeleton construction, process: L * B * H=2.0 * 0.6 * 1.5m.1 of artificial grid is installed, grid crack 5mm.
(2) JMF oxidation pond:
1 of underground type Steel Concrete JMF oxidation pond, process: L * B * H=22.00 * 2.50 * 4.5m is used for the biological treatment of sewage.
(3) between integrated car:
Between the ground type brick mix structure is comprehensive 1, process: L * B * H=7.50 * 5.40 * 3.90m.All devices is installed between integrated car.
(4) disinfecting tank:
1 of underground type Steel Concrete disinfecting tank is built process jointly with the JMF pond: L * B * H=2.50 * 2.00 * 4.50m, this pond useful volume V=20m
3
Experimental example 2:
This designed water is 20m
3/ d, the design and operation time considers that by 12 hours the sewage average discharge is 1.7m
3/ h, hourly variation factor gets 2, actual design water yield 3.4m
3/ h.
(1) grid canal: 1
1 in underground type Steel Concrete grid canal, process: L * B * H=2.24 * 0.5 * 1.2m.Artificial grid is installed.
(2) biologic packing material oxidation pond: 1,
1 of underground type Steel Concrete bio-oxidation pond, process: L * B * H=4.00 * 2.80 * 4.5m, this pond BOD5 load design variable is 0.1kg.BOD5/kg.MVLSS.d, effective volume 35m
3, be used for the sewage organic matter removal.
(3) clean water basin: 1,
1 of underground type Steel Concrete clean water basin, process: L * B * H=2.6 * 2.10 * 4.5m, available depth 4m, useful volume 21m
3
(4) pump hole: 1,
1 of underground type Steel Concrete clean water basin, process: L * B * H=2.6 * 1.8 * 4.5m.Be used for the installation of lift pump.
(5) between integrated car:
Between the structure composition of ground type light steel and color plate 1, process: L * B * H=6.00 * 4.50 * 3.5m.In all devices places between integrated car.
Effluent quality all reaches the first discharge standard B standard of the conventional pollutent of country's " urban wastewater treatment firm pollutant emission standard " in (GB18918-2002).
Annotate: the control index when the outer numerical value of bracket is water temperature＞12 ℃, the control index when numerical value is water temperature≤12 ℃ in the bracket.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203690560U CN202717626U (en) | 2012-07-28 | 2012-07-28 | Biological stuffing sewage treatment unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203690560U CN202717626U (en) | 2012-07-28 | 2012-07-28 | Biological stuffing sewage treatment unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202717626U true CN202717626U (en) | 2013-02-06 |
Family
ID=47619455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203690560U Expired - Fee Related CN202717626U (en) | 2012-07-28 | 2012-07-28 | Biological stuffing sewage treatment unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202717626U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745806A (en) * | 2012-07-28 | 2012-10-24 | 甘肃金桥给水排水设计与工程(集团)有限公司 | Biological packing sewage treatment device and method thereof |
| CN103979680A (en) * | 2014-06-06 | 2014-08-13 | 中国科学院城市环境研究所 | Biochemical pretreatment device with water quality and water quantity regulation function |
| CN105347629A (en) * | 2015-12-11 | 2016-02-24 | 广西南宁绿泽环保科技有限公司 | Multistage compound moving bed biofilm reactor (MC-MBBR) |
-
2012
- 2012-07-28 CN CN2012203690560U patent/CN202717626U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745806A (en) * | 2012-07-28 | 2012-10-24 | 甘肃金桥给水排水设计与工程(集团)有限公司 | Biological packing sewage treatment device and method thereof |
| CN103979680A (en) * | 2014-06-06 | 2014-08-13 | 中国科学院城市环境研究所 | Biochemical pretreatment device with water quality and water quantity regulation function |
| CN105347629A (en) * | 2015-12-11 | 2016-02-24 | 广西南宁绿泽环保科技有限公司 | Multistage compound moving bed biofilm reactor (MC-MBBR) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GANSU GOLDEN BRIGE WATER TECHNOLOGY (GROUP) CO., L Free format text: FORMER NAME: GANSU JINQIAO WATER TREATMENT TECHNOLOGY ENGINEERING LTD. |
|
| CP03 | Change of name, title or address |
Address after: 730030, 6 floor, Xin Sheng building, 279 Jiuquan Road, Chengguan District, Gansu, Lanzhou Patentee after: GANSU JINQIAO WATER TECHNOLOGY (GROUP) LIMITED BY SHARE LTD. Address before: 730030, Gansu City, Lanzhou province Lanzhou central square letter building 6 floor Patentee before: Gansu Jinqiao water supply and drainage design and Engineering (Group) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 730030, 6 floor, Xin Sheng building, 279 Jiuquan Road, Chengguan District, Gansu, Lanzhou Patentee after: GANSU JINQIAO WATER TECHNOLOGY (Group) Co.,Ltd. Address before: 730030, 6 floor, Xin Sheng building, 279 Jiuquan Road, Chengguan District, Gansu, Lanzhou Patentee before: GANSU JINQIAO WATER TECHNOLOGY (GROUP) LIMITED BY SHARE LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20210728 |