CN115974284A - Sewage treatment method based on ecological floating island coupling mud-water separation tank - Google Patents
Sewage treatment method based on ecological floating island coupling mud-water separation tank Download PDFInfo
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- CN115974284A CN115974284A CN202211721518.5A CN202211721518A CN115974284A CN 115974284 A CN115974284 A CN 115974284A CN 202211721518 A CN202211721518 A CN 202211721518A CN 115974284 A CN115974284 A CN 115974284A
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- water separation
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 95
- 238000007667 floating Methods 0.000 title claims abstract description 74
- 238000000926 separation method Methods 0.000 title claims abstract description 43
- 230000008878 coupling Effects 0.000 title claims abstract description 32
- 238000010168 coupling process Methods 0.000 title claims abstract description 32
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 32
- 239000010865 sewage Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004062 sedimentation Methods 0.000 claims abstract description 61
- 239000010802 sludge Substances 0.000 claims abstract description 28
- 241000196324 Embryophyta Species 0.000 claims description 19
- 235000005273 Canna coccinea Nutrition 0.000 claims description 4
- 244000292211 Canna coccinea Species 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 7
- 239000011574 phosphorus Substances 0.000 abstract description 7
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 238000006731 degradation reaction Methods 0.000 abstract description 4
- 238000001556 precipitation Methods 0.000 description 19
- 230000000694 effects Effects 0.000 description 12
- 239000002245 particle Substances 0.000 description 11
- 230000008635 plant growth Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000013049 sediment Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009388 chemical precipitation Methods 0.000 description 2
- 230000001112 coagulating effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000234587 Canna Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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Classifications
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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
Abstract
The invention discloses a sewage treatment method based on an ecological floating island coupling mud-water separation tank, which comprises the following steps: building a plurality of mud-water separation tanks, cultivating ecological floating islands, and finally building a plurality of ecological floating island coupling mud-water separation tanks; injecting the sewage after biological treatment into an ecological floating island coupling mud-water separation tank for mud-water separation; the settled sludge is collected by a sludge hopper at the bottom, the collected sludge is discharged for next treatment, and clear water after upper layer sludge-water separation is guided to the next treatment flow. The invention adopts an ecological floating island technology to organically couple the sedimentation tank, creatively plants the floating island on the surface of the sedimentation tank, utilizes the huge root system of the aquatic plant as a filter screen and intercepts floating mud possibly floating on the bottom of the sedimentation tank, and the aquatic plant quickly grows to effectively consume residual organic matters, ammonia nitrogen and total phosphorus in the water body, thereby playing a role in assisting degradation.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a sewage treatment method based on an ecological floating island coupling mud-water separation tank.
Background
In the field of sewage treatment, a sedimentation tank after biological treatment is generally called a secondary sedimentation tank or a final sedimentation tank, the secondary sedimentation tank is used for separating mud and water, so that mixed liquor is clarified, sludge is concentrated, and the separated sludge flows back to a biological treatment section, and the quality of the effect of the secondary sedimentation tank directly influences the quality of effluent and the concentration of the returned sludge. If the precipitation and concentration effects are poor, the activated sludge suspended matters are increased in the effluent, so that the BOD mass concentration of the effluent is increased; meanwhile, the concentration of the returned sludge is reduced, so that the concentration of mixed liquid in the aeration tank is reduced, and the purification effect is influenced. The factors influencing the effect of the secondary sedimentation tank mainly comprise: the quality of the front-end sludge, the mode of sedimentation, the auxiliary action of a coagulant aid flocculant and the like. Among these, the way of precipitation plays a crucial role.
In the prior art, precipitation treatment can be divided into three forms: 1. natural sedimentation and precipitation: the size, shape and density of solid particles in water are not changed in the process of precipitation, and if the water with high silt content is subjected to pre-precipitation, the water belongs to natural precipitation; 2. coagulating sedimentation: the precipitation process in which solid particles in water change size, shape and density due to mutual contact and agglomeration is called as coagulating sedimentation; 3. chemical precipitation: the process of adding a certain medicament into water to crystallize or deposit impurities dissolved in the water is called chemical precipitation, and the three modes are used independently or compositely, but the effect is always unsatisfactory, and a larger progress space still exists. Therefore, a sewage treatment method based on the ecological floating island coupling mud-water separation tank is provided.
Disclosure of Invention
The invention aims to overcome the technical problem of the prior art and provides a sewage treatment method based on an ecological floating island coupling mud-water separation tank, which adopts an ecological floating island technology organic coupling sedimentation tank, simultaneously creatively plants floating islands on the surface of the sedimentation tank, utilizes the huge root system of aquatic plants as a filter screen and intercepts floating mud possibly floating on the bottom of the sedimentation tank, and the aquatic plants quickly grow and effectively consume residual organic matters, ammonia nitrogen and total phosphorus in water to play a role in auxiliary degradation, thereby effectively solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a sewage treatment method based on an ecological floating island coupling mud-water separation tank comprises the following steps:
s1, building a plurality of mud-water separation tanks, cultivating ecological floating islands, and finally building a plurality of ecological floating island coupling mud-water separation tanks;
s2, injecting the sewage after biological treatment into an ecological floating island coupling mud-water separation tank for mud-water separation, realizing the precipitation of particles in the sewage through a precipitation component in the middle, and realizing the decomposition of organic matters in a water body through an ecological floating island on the upper part;
s3, collecting the precipitated sludge by a sludge hopper at the bottom, discharging the collected sludge for next treatment, and guiding clear water obtained after upper-layer mud-water separation to the next treatment flow.
Further, ecological chinampa coupling mud-water separation pond, including the sedimentation tank, put thing basket, manger plate subassembly, support and inclined sediment piece, the sedimentation tank middle part is provided with the support that provides the supporting role, the support top is provided with the sediment subassembly, the slope of sediment subassembly sets up, evenly be provided with the through-hole that makes the rivers circulate on the support, sedimentation tank upper portion is provided with the upper bracket, and the upper bracket both ends and sedimentation tank inner wall are connected, be provided with a plurality of manger plate subassemblies on the upper bracket, be provided with a plurality of thing baskets of putting between the adjacent manger plate subassembly, put thing basket lower part and bottom fretwork, and inside is provided with aquatic plant, the sedimentation tank bottom is provided with a plurality of sludge hoppers.
Furthermore, one or more floating blocks are arranged between the storage baskets and used for separating the storage baskets to prevent the storage baskets from approaching under the action of water flow.
Furthermore, the aquatic plant that sets up in the thing basket is canna indica or zhilan, and these aquatic plant roots are flourishing, and the filter screen that forms through the root system interweaves, the mud that floats that probably floats up of entrapment sedimentation tank bottom.
Furthermore, a plurality of upper brackets and the ecological floating island formed by the storage basket are arranged and distributed in the sedimentation tank, are uniformly distributed and have better sedimentation effect.
Furthermore, the water retaining component is a water retaining plate or a water outlet weir, the water retaining component effectively retains floating objects falling due to plant growth, the influence of the floating objects on water quality is reduced or eliminated, and the water retaining component is favorable for collecting the floating objects falling due to plant growth.
Furthermore, the sedimentation component and the horizontal plane are arranged at 120-160 degrees and are obliquely arranged, so that the sedimentation component is favorably impacted by water flow to form turbulent flow, the particles in the water flow are convenient to collide with each other, and the small particles become large particles and then settle down.
Further, the sedimentation component is arranged at an angle of 135 degrees with the horizontal plane.
Further, the sedimentation component is an inclined tube or an inclined plate.
Furthermore, the distance between the lower part of the bracket and the upper surface of the sludge hopper is 1.0-1.5m, and enough space is reserved so as to ensure that the precipitation is sufficient.
Compared with the prior art, the invention has the beneficial effects that: the sewage treatment method based on the ecological floating island coupling mud-water separation tank has the following advantages:
1. according to the invention, an ecological floating island technology is adopted to organically couple the sedimentation tank, and the floating island is creatively planted on the surface of the sedimentation tank, so that a huge root system of the aquatic plant can be effectively used as a filter screen and used for intercepting floating mud possibly floating on the bottom of the sedimentation tank, the aquatic plant can quickly grow and effectively consume residual organic matters, ammonia nitrogen and total phosphorus in a water body, and the effect of assisting degradation is achieved;
2. according to the ecological floating island, the water retaining assembly is arranged at the periphery of the ecological floating island, so that floating objects falling due to plant growth are effectively retained, and the influence of the floating objects on water quality is reduced or eliminated; the setting is precipitated the subassembly, is favorable to rivers to strike and is precipitated the subassembly and form the turbulent flow, is convenient for make the particulate matter in the rivers bump each other, and the tiny particle becomes the large granule, and then settles down.
3. The invention has good precipitation effect, the wastewater treatment efficiency exceeds that of other precipitation methods by 30 percent, and the cost is saved by about 35 percent.
Drawings
Fig. 1 is a schematic structural diagram of an ecological floating island coupling mud-water separation tank in the invention.
In the figure: 1 sedimentation tank, 2 storage baskets, 3 upper brackets, 4 water retaining assemblies, 5 brackets, 6 sedimentation assemblies and 7 sludge buckets.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1, the present embodiment provides a technical solution: a sewage treatment method based on an ecological floating island coupling mud-water separation tank comprises the following steps:
s1, building a plurality of mud-water separation tanks, cultivating ecological floating islands, and finally building a plurality of ecological floating island coupling mud-water separation tanks;
s2, injecting the sewage subjected to biological treatment into an ecological floating island coupling mud-water separation tank for mud-water separation, realizing the precipitation of particles in the sewage through a precipitation assembly in the middle, and realizing the decomposition of organic matters in a water body through an ecological floating island on the upper part;
s3, collecting the precipitated sludge by a sludge hopper at the bottom, discharging the collected sludge for next treatment, and guiding clear water obtained after upper-layer mud-water separation to the next treatment flow.
Sedimentation tank 1, storage basket 2, upper bracket 3, water retaining component 4, bracket 5, sedimentation component 6, sludge bucket 7
As one of them embodiment, ecological chinampa coupling mud-water separation pond, including sedimentation tank 1, put thing basket 2, manger plate subassembly 4, support 5 and inclined precipitation piece 6, sedimentation tank 1 middle part is provided with the support 5 that provides the supporting role, support 5 top is provided with precipitation subassembly 6, precipitation subassembly 6 slope sets up, evenly be provided with the through-hole that makes the hydrologic cycle on the support 5, 1 upper portion of sedimentation tank is provided with upper bracket 3, upper bracket 3 both ends and 1 interior wall connection of sedimentation tank, be provided with a plurality of manger plate subassemblies 4 on the upper bracket 3, be provided with a plurality of thing baskets 2 of putting between the adjacent manger plate subassembly 4, put thing basket 2 lower part and bottom fretwork, and inside is provided with aquatic plant, sedimentation tank 1 bottom is provided with a plurality of sludge buckets 7.
Wherein, be provided with one or more kicking blocks between the thing basket 2 of putting, the kicking block is used for cutting off the thing basket 2 of putting, prevents to put the thing basket 2 and is close to under the effect of rivers.
As one embodiment, two floating blocks are arranged between the storage baskets 2.
Wherein, the aquatic plant arranged in the basket 2 is canna indica or zhilan, the root system of the aquatic plant is developed, and the floating mud possibly floating on the bottom of the sedimentation tank is intercepted through a filter screen formed by interweaving the root system.
As one embodiment, the aquatic plant arranged in the basket 2 is canna.
As one embodiment, the ecological floating islands formed by the upper brackets 3 and the storage baskets 2 are distributed in the sedimentation tank 1 in an array manner, are uniformly distributed, and have better sedimentation effect.
As one example, ecological floating islands are distributed around the sedimentation basin 1.
As one embodiment, the water retaining component 4 is a water retaining plate or a water outlet weir, the water retaining component 4 effectively retains floating objects falling due to plant growth, the influence of the floating objects on water quality is reduced or eliminated, and the water retaining component 4 is beneficial to collecting the floating objects falling due to plant growth.
Wherein, deposit subassembly 6 and the horizontal plane and personally submit 120-160 degrees settings, the slope sets up, is favorable to rivers to strike and deposits subassembly 6 and form the turbulent flow, is convenient for make the particulate matter in the rivers collide each other, and the tiny particle becomes the large granule, and then settles down.
As one example, the settling assembly 6 is positioned 135 degrees from the horizontal.
As one example, the sedimentation assembly 6 is a sloped tube or a sloped plate.
As one example, the space below the bracket 5 is 1.0 to 1.5m from the upper surface of the sludge hopper 7, and sufficient space is left to allow sufficient sedimentation.
The working principle of the sewage treatment method based on the ecological floating island coupling mud-water separation tank provided by the invention is as follows: the ecological floating island is organically coupled with the sedimentation tank by adopting an ecological floating island technology, the floating island is creatively planted on the surface of the sedimentation tank, the storage basket 2, the upper bracket 3 and the water retaining component 4 form the ecological floating island, and the ecological floating island is used for degrading the contents of COD (chemical oxygen demand), nitrogen and phosphorus in water by aiming at eutrophicated water quality by utilizing an ecological engineering principle. The method takes aquatic plants as a main body, applies the technical principle of soilless culture, takes high polymer materials and the like as carriers and substrates, applies the symbiotic relationship among species, and fully utilizes the space ecological niche and the nutrition ecological niche of the water body, thereby establishing a high-efficiency artificial ecosystem for reducing the pollution load in the water body. It can greatly raise water transparency, and can effectively improve water quality index, specially has good inhibiting effect for algae. The ecological floating island has the main effect of purifying water quality by absorbing eutrophic substances, such as total phosphorus, ammonia nitrogen, organic matters and the like, in water by using the root system of plants, so that the nutrition of the water body is transferred, and the phenomena of fishy smell and eutrophication of the water body caused by the insufficient sealing or self-circulation of the water body are reduced. The artificially strengthened aquatic plants such as the ecological floating island and the like can effectively degrade pollutants in water, such as COD, ammonia nitrogen, total phosphorus and the like, and have the characteristics of low treatment cost and the like.
The huge root system of the aquatic plant is used as a filter screen to intercept floating mud possibly floating at the bottom of the sedimentation tank, and the aquatic plant grows quickly and effectively consumes residual organic matters, ammonia nitrogen and total phosphorus in the water body, thereby playing a role in assisting degradation. Be provided with below the ecological chinampa and deposit subassembly 6, be favorable to rivers to strike and deposit the subassembly and form the turbulent flow, be convenient for make the particulate matter in the rivers bump each other, the tiny particle becomes the large granule, and then settles down. The particle sediment can be deposited in the sludge hopper 7 under the action of gravity, and simultaneously, the sludge below the sludge hopper 7 is naturally compressed under the action of gravity. The invention has the advantages of good precipitation effect, high sewage treatment efficiency and lower cost.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A sewage treatment method based on an ecological floating island coupling mud-water separation tank is characterized in that:
the method comprises the following steps:
s1, building a plurality of mud-water separation tanks, cultivating ecological floating islands, and finally building a plurality of ecological floating island coupling mud-water separation tanks;
s2, injecting the sewage subjected to biological treatment into an ecological floating island coupling mud-water separation tank for mud-water separation;
s3, collecting the precipitated sludge by a sludge hopper at the bottom, discharging the collected sludge for next treatment, and guiding clear water obtained after upper-layer mud-water separation to the next treatment flow.
2. The sewage treatment method based on the ecological floating island coupling sludge-water separation tank as claimed in claim 1, wherein the sewage treatment method comprises the following steps: ecological chinampa coupling mud-water separation pond, including sedimentation tank (1), put thing basket (2), manger plate subassembly (4), support (5) and inclined sedimentation spare (6), sedimentation tank (1) middle part is provided with support (5) that provide the supporting role, support (5) top is provided with sedimentation subassembly (6), sedimentation subassembly (6) slope sets up, evenly be provided with the through-hole that makes the circulation of water on support (5), sedimentation tank (1) upper portion is provided with upper bracket (3), upper bracket (3) both ends and sedimentation tank (1) inner wall connection, be provided with a plurality of manger plate subassemblies (4) on upper bracket (3), be provided with a plurality of thing baskets (2) of putting between adjacent manger plate subassembly (4), put thing basket (2) lower part and bottom fretwork, and inside is provided with aquatic plant, sedimentation tank (1) bottom is provided with a plurality of sludge hoppers (7).
3. The sewage treatment method based on the ecological floating island coupling sludge-water separation tank as claimed in claim 2, characterized in that: one or more floating blocks are arranged between the article placing baskets (2).
4. The sewage treatment method based on the ecological floating island coupling mud-water separation tank, according to claim 2, is characterized in that: the aquatic plant arranged in the storage basket (2) is canna indica or zhilan.
5. The sewage treatment method based on the ecological floating island coupling mud-water separation tank, according to claim 2, is characterized in that: the ecological floating island formed by a plurality of upper brackets (3) and the storage basket (2) is arranged and distributed in the sedimentation tank (1).
6. The sewage treatment method based on the ecological floating island coupling sludge-water separation tank as claimed in claim 2, characterized in that: the water retaining component (4) is a water retaining plate or an effluent weir.
7. The sewage treatment method based on the ecological floating island coupling mud-water separation tank, according to claim 2, is characterized in that: the sedimentation component (6) is arranged at an angle of 120-160 degrees with the horizontal plane.
8. The sewage treatment method based on the ecological floating island coupling mud-water separation tank, according to claim 7, is characterized in that: the sedimentation component (6) is arranged at an angle of 135 degrees with the horizontal plane.
9. The sewage treatment method based on the ecological floating island coupling mud-water separation tank, according to claim 2, is characterized in that: the sedimentation component (6) is an inclined tube or an inclined plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211721518.5A CN115974284A (en) | 2022-12-30 | 2022-12-30 | Sewage treatment method based on ecological floating island coupling mud-water separation tank |
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| CN202211721518.5A CN115974284A (en) | 2022-12-30 | 2022-12-30 | Sewage treatment method based on ecological floating island coupling mud-water separation tank |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203021357U (en) * | 2012-12-03 | 2013-06-26 | 同济大学 | Assembly type river water purifying device for enhancing sand sedimentation by means of physical and ecological synergy |
| CN104926038A (en) * | 2015-06-17 | 2015-09-23 | 陕西省环境科学研究院 | Biological and ecological combined processing device used for processing rural sewage |
| CN210559965U (en) * | 2019-09-24 | 2020-05-19 | 重庆市渝西水务有限公司永川分公司 | Inclined tube sedimentation tank structure |
| CN210656369U (en) * | 2019-09-30 | 2020-06-02 | 深圳市易立城建设工程有限公司 | Ecological restoration floating bed |
| CN219409476U (en) * | 2022-12-30 | 2023-07-25 | 广东广深环保科技股份有限公司 | Ecological floating island coupling mud-water separation tank |
-
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- 2022-12-30 CN CN202211721518.5A patent/CN115974284A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203021357U (en) * | 2012-12-03 | 2013-06-26 | 同济大学 | Assembly type river water purifying device for enhancing sand sedimentation by means of physical and ecological synergy |
| CN104926038A (en) * | 2015-06-17 | 2015-09-23 | 陕西省环境科学研究院 | Biological and ecological combined processing device used for processing rural sewage |
| CN210559965U (en) * | 2019-09-24 | 2020-05-19 | 重庆市渝西水务有限公司永川分公司 | Inclined tube sedimentation tank structure |
| CN210656369U (en) * | 2019-09-30 | 2020-06-02 | 深圳市易立城建设工程有限公司 | Ecological restoration floating bed |
| CN219409476U (en) * | 2022-12-30 | 2023-07-25 | 广东广深环保科技股份有限公司 | Ecological floating island coupling mud-water separation tank |
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