CN108928910A - A kind of filler of bioreactor for sewage treatment and the packing method of the filler - Google Patents
A kind of filler of bioreactor for sewage treatment and the packing method of the filler Download PDFInfo
- Publication number
- CN108928910A CN108928910A CN201810870948.0A CN201810870948A CN108928910A CN 108928910 A CN108928910 A CN 108928910A CN 201810870948 A CN201810870948 A CN 201810870948A CN 108928910 A CN108928910 A CN 108928910A
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- Prior art keywords
- filling body
- filler
- bioreactor
- aperture
- sewage treatment
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- 238000012856 packing Methods 0.000 title claims abstract description 48
- 239000000945 filler Substances 0.000 title claims abstract description 39
- 239000010865 sewage Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 12
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 229920000570 polyether Polymers 0.000 claims abstract description 7
- 229920002635 polyurethane Polymers 0.000 claims abstract description 7
- 239000004814 polyurethane Substances 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 abstract description 17
- 238000004065 wastewater treatment Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000005273 aeration Methods 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 238000013461 design Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 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
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
Classifications
-
- 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
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material 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 invention discloses a kind of filler of bioreactor for sewage treatment and the packing methods of the filler, the filler includes filling body, the cube sponge block that filling body is polyether polyurethane, dicalcium powder is obtained with modified sponge made of the weight proportion mixing of 5:1 and foamed and aperture through cutting, it is 10 ~ 20ppi that the percent opening of the filling body, which is greater than 99%, aperture,；Multiple mesh bags of the packing method of the filler including the use of aperture no more than 2cm, load-bearing not less than 10kgf load filling body, and the mesh bag for being filled with filling body is uniformly filled up to the packing area of bioreactor.The present invention can be improved the using effect of bioreactor, at the same make the filling of filling body it is more uniform, replacement it is more convenient, be conducive to improve wastewater treatment efficiency.
Description
Technical field
The present invention relates to a kind of filler of bioreactor for sewage treatment and the packing methods of the filler.
Background technique
The principle of biofilm water treatment technology is filler by being loaded using in reactor as microorganism growing carrier,
Form abundant and period longer biomembrane, through its metabolism, realize to organic matter degradation in sewage (show as to COD, BOD's
Removal) and ammonia nitrogen elimination, because treatment effeciency is high, operation and maintenance are convenient, applicability is wide etc., advantages have been widely used the technology
In the various aspects such as sewage treatment and polluted-water improvement.
In the prior art, traditional biofilm generally use fixed filler (such as elastic body filler, composite filling) or
Person's floating stuffing, but in these reactors, the activated sludge in the biomembrane and water phase of filler surface is a kind of mixed system,
Biomembrane quantity, types of spawn all can be different degrees of the competition or inhibition by activated sludge strain, lead to treatment effect simultaneously
It is not up to optimal, and it also requires increasing sedimentation basin additionally to carry out the link of mud-water separation and returned sludge；In addition, also adopting
Blocking is easy to appear in, starting is delayed using haydite etc. as filler, but since it is than great, porosity is small with biofilter
Slowly, phenomena such as debugging cycle is long, backwash is frequent, if replacing ceramic grain filter with conventional sponges block, since sponge hole is abundant
And quality itself is smaller, under aeration state, the sponge block mutually dispersed is easy floating and is piled up in reactor upper area, unfavorable
In mass transfer and oxygenation, operational effect is not good enough, and directly filling its uniformity of fritter sponge cannot be guaranteed, loads with replacement more
Trouble.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of fillers of bioreactor for sewage treatment.
The technical scheme is that a kind of filler of bioreactor for sewage treatment, including filling body, the filler
Body be polyether polyurethane, dicalcium powder with modified sponge made of the mixing of the weight proportion of 5:1 and foamed and aperture through cutting
Obtained cube sponge block, it is 10~20ppi that the percent opening of the filling body, which is greater than 99%, aperture,.
Further, the partial size of heretofore described dicalcium powder is 800~1000 mesh.
Further, heretofore described filling body is the cube sponge block that side length is 5~8cm.
Another technical problem that the present invention solves is to provide a kind of filling side of the filler of bioreactor for sewage treatment
Method, comprising the following steps: 1) load the filling body not less than multiple mesh bags of 10kgf no more than 2cm, load-bearing using aperture；
2) the multiple mesh bags for being filled with filling body are uniformly filled up to the packing area of bioreactor.
Further, in the present invention, 2000 filling bodies are filled in step 1) in each mesh bag.
Further, in the present invention, filling body described in step 1) is the cube sponge block that side length is 5cm, the net
The aperture of bag is 1cm.
Further, in the present invention, filling body described in step 1) is the cube sponge block that side length is 8cm, the net
The aperture of bag is 2cm.
Further, in the present invention, packing area height described in step 2) is 1~3m.
Compared with the prior art, the advantages of the invention are the filling body that the present invention uses is polyether polyurethane, dicalcium powder
It is foamed after stirring evenly mixing with the weight proportion of 5:1 according to conventional sponges production technology, modified sponge made of aperture
Obtained cube sponge block is cut, it is 10~20ppi that filling body percent opening, which is greater than 99%, aperture, improves modified sponge
Suspension effect and surface roughness and hydrophily in water, bioreactor make its more easy to be filmed using the filling body, start
Faster, film density and water are closer and after biofilm, can greatly improve the using effect of bioreactor；In addition, according to filling out
Expect that area's height can guarantee that packing area reaches suitable packed density using the filling body of suitable dimension, according to the size of filling body
Using guaranteeing the mesh bag that will not leak outside of filling body, since filling body is filled in packing area by mesh bag, so that filling body
Load it is more uniform, replacement it is more convenient, be conducive to improve bioreactor wastewater treatment efficiency.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and embodiments:
Fig. 1 be use state diagram of the invention (wherein curve enclosure be divided into bioreactor packing area it is incomplete
Fragmentary perspective view when portion is filled up).
Wherein: 1, filling body；2, mesh bag；3, aeration tube；4, support bracket.
Specific embodiment
Embodiment one:
A kind of filler of bioreactor for sewage treatment of the present invention and the packing method of the filler are shown in conjunction with attached drawing
The first specific embodiment, firstly, filler includes filling body 1, filling body 1 is polyether polyurethane, dicalcium powder with 5:1's
Weight proportion is foamed after stirring evenly mixing according to conventional sponges production technology, modified sponge made of aperture is through cutting
The side length arrived is the cube sponge block of 5cm.
Wherein, the partial size of dicalcium powder is 800~1000 mesh, the percent opening of filling body 1 be greater than 99%, aperture be 10~
20ppi。
Secondly, packing method the following steps are included:
Step 1): being that the multiple mesh bags 2 of 1cm, load-bearing not less than 10kgf load filling body 1, and each net using aperture
2000 filling bodies 1 are all filled in bag 2.
The multiple mesh bags 2 for being filled with filling body 1: uniformly being filled up the packing area of bioreactor by step 2), and packing area is high
Degree is 1m.
In the present embodiment, using side length according to packing area height is that the cube sponge block of 5cm can be protected as filling body 1
The packing area that card height is 1m reaches suitable packed density, will not be leaked outside according to the size of filling body 1 using guarantee filling body 1
Aperture be 1cm mesh bag 2, bioreactor makes its more easy to be filmed using the filling body 1 of the present embodiment, starting faster,
And film density and water are closer after biofilm, can greatly improve the using effect of bioreactor, and since filling body 1 is
It is filled in packing area by mesh bag 2, so that the filling of filling body 1 is more uniform and replacement is more convenient, is conducive to improve life
The wastewater treatment efficiency of object reactor.
Bioreactor design is three-decker, packing area upper layer and lower layer be respectively a height of 0.5~1.0m of layer clear water zone,
The aeration zone of a height of 0.5~1.0m of layer is equipped with the aeration tube 3 of the perforation for aeration aerating in aeration zone, sets between every layer
Support bracket 4 is set, support bracket 4 includes steel bar framework and the steel wire being arranged in steel bar framework, steel wire 3~5cm of screen distance, support
4 design bearing capacity of frame is high related to filler region layer, and what 1m layers of high packing area corresponded to support bracket 4 is carried as 27kgf/ ㎡.
When the present embodiment specific works, the bioreactor for being filled with the filling body 1 is put into contaminated, black smelly serious
In man-made lake, for removing organic matter and ammonia nitrogen, design treatment scale 100m3/d。
1) implementation condition: packing area height 1m, side length are the cube sponge block of 5cm, 2 aperture 1cm of mesh bag, support bracket 4
Load-bearing 27kgf/ ㎡.
2) clear appearance, good sewage processing effect, Inlet and outlet water major pollutants index such as table treatment effect: are discharged after processing
Shown in 1:
1 embodiment of table, one effect
| Index | It intakes (mg/L) | It is discharged (mg/L) |
| SS | 100 | 5 |
| COD | 80 | 26 |
| NH3-N | 24 | 4 |
Embodiment two:
The present embodiment is the of a kind of filler of bioreactor for sewage treatment of the present invention and the packing method of the filler
Two kinds of specific embodiments, firstly, filler includes filling body 1, filling body 1 is polyether polyurethane, dicalcium powder with the weight of 5:1
Proportion is foamed after stirring evenly mixing according to conventional sponges production technology, modified sponge made of aperture is obtained through cutting
Side length is the cube sponge block of 6cm.
Wherein, the partial size of dicalcium powder is 800~1000 mesh, the percent opening of filling body 1 be greater than 99%, aperture be 10~
20ppi。
Secondly, packing method the following steps are included:
Step 1): using aperture be 1.5cm, multiple mesh bags 2 of the load-bearing not less than 10kgf load filling body 1, and each
2000 filling bodies 1 are all filled in mesh bag 2.
The multiple mesh bags 2 for being filled with filling body 1: uniformly being filled up the packing area of bioreactor by step 2), and packing area is high
Degree is 2m.
In the present embodiment, using side length according to packing area height is that the cube sponge block of 6cm can be protected as filling body 1
The packing area that card height is 2m reaches suitable packed density, will not be leaked outside according to the size of filling body 1 using guarantee filling body 1
Aperture be 1.5cm mesh bag 2, bioreactor makes its more easy to be filmed using the filling body 1 of the present embodiment, and starting is more
Fastly, film density and water are closer and after biofilm, can greatly improve the using effect of bioreactor, and due to filling body
1 is filled in packing area by mesh bag 2, so that the filling of filling body 1 is more uniform and replacement is more convenient, is conducive to improve
The wastewater treatment efficiency of bioreactor.
Bioreactor design is three-decker, packing area upper layer and lower layer be respectively a height of 0.5~1.0m of layer clear water zone,
The aeration zone of a height of 0.5~1.0m of layer is equipped with the aeration tube 3 of the perforation for aeration aerating in aeration zone, sets between every layer
Support bracket 4 is set, support bracket 4 includes steel bar framework and the steel wire being arranged in steel bar framework, steel wire 3~5cm of screen distance, support
4 design bearing capacity of frame is high related to filler region layer, and what 2m layers of high packing area corresponded to support bracket 4 is carried as 50kgf/ ㎡.
When the present embodiment specific works, the bioreactor for being filled with the filling body 1 is put into contaminated, black smelly serious
In man-made lake, for removing organic matter and ammonia nitrogen, design treatment scale 2000m3/d。
1) implementation condition: packing area height 2m, side length are the cube sponge block of 6cm, 2 aperture 1.5cm of mesh bag, support bracket
4 load-bearing 50kgf/ ㎡.
2) clear appearance, good sewage processing effect, Inlet and outlet water major pollutants index such as table treatment effect: are discharged after processing
Shown in 2:
2 embodiment of table, two effect
| Index | It intakes (mg/L) | It is discharged (mg/L) |
| SS | 90 | 8 |
| COD | 100 | 30 |
| NH3-N | 26 | 5 |
Embodiment three:
The present embodiment is the of a kind of filler of bioreactor for sewage treatment of the present invention and the packing method of the filler
Three kinds of specific embodiments, firstly, filler includes filling body 1, filling body 1 is polyether polyurethane, dicalcium powder with the weight of 5:1
Proportion is foamed after stirring evenly mixing according to conventional sponges production technology, modified sponge made of aperture is obtained through cutting
Side length is the cube sponge block of 8cm.
Wherein, the partial size of dicalcium powder is 800~1000 mesh, the percent opening of filling body 1 be greater than 99%, aperture be 10~
20ppi。
Secondly, packing method the following steps are included:
Step 1): being that the multiple mesh bags 2 of 2cm, load-bearing not less than 10kgf load filling body 1, and each net using aperture
2000 filling bodies 1 are all filled in bag 2.
The multiple mesh bags 2 for being filled with filling body 1: uniformly being filled up the packing area of bioreactor by step 2), and packing area is high
Degree is 3m.
In the present embodiment, using side length according to packing area height is that the cube sponge block of 8cm can be protected as filling body 1
The packing area that card height is 3m reaches suitable packed density, will not be leaked outside according to the size of filling body 1 using guarantee filling body 1
Aperture be 2cm mesh bag 2, bioreactor makes its more easy to be filmed using the filling body 1 of the present embodiment, starting faster,
And film density and water are closer after biofilm, can greatly improve the using effect of bioreactor, and since filling body 1 is
It is filled in packing area by mesh bag 2, so that the filling of filling body 1 is more uniform and replacement is more convenient, is conducive to improve life
The wastewater treatment efficiency of object reactor.
Bioreactor design is three-decker, packing area upper layer and lower layer be respectively a height of 0.5~1.0m of layer clear water zone,
The aeration zone of a height of 0.5~1.0m of layer is equipped with the aeration tube 3 of the perforation for aeration aerating in aeration zone, sets between every layer
Support bracket 4 is set, support bracket 4 includes steel bar framework and the steel wire being arranged in steel bar framework, steel wire 3~5cm of screen distance, support
4 design bearing capacity of frame is high related to filler region layer, and what 3m layers of high packing area corresponded to support bracket 4 is carried as 81kgf/ ㎡.
When the present embodiment specific works, it is more, raw that the bioreactor for being filled with the filling body 1 is put into the point of blowdown along the river
State destroys serious contaminated river, purifies to river water, purification facility design treatment scale 8000m3/d。
1) implementation condition: packing area height 3m, side length are the cube sponge block of 8cm, 2 aperture 2cm of mesh bag, support bracket 4
Load-bearing 81kgf/ ㎡.
2) clear appearance, good sewage processing effect, Inlet and outlet water major pollutants index such as table treatment effect: are discharged after processing
Shown in 3:
3 embodiment of table, three effect
| Index | It intakes (mg/L) | It is discharged (mg/L) |
| SS | 80 | 10 |
| COD | 110 | 35 |
| NH3-N | 28 | 6 |
Certainly the above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow be familiar with technique
People can understand the content of the present invention and implement it accordingly, it is not intended to limit the scope of the present invention.It is all according to this hair
The modification that the Spirit Essence of bright main technical schemes is done, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of filler of bioreactor for sewage treatment, including filling body (1), it is characterised in that: the filling body (1) is
Polyether polyurethane, dicalcium powder are obtained with modified sponge made of the weight proportion mixing of 5:1 and foamed and aperture through cutting
Cube sponge block, it is 10 ~ 20ppi that the percent opening of the filling body (1), which is greater than 99%, aperture,.
2. a kind of filler of bioreactor for sewage treatment according to claim 1, it is characterised in that: the dicalcium powder
Partial size be 800 ~ 1000 mesh.
3. a kind of filler of bioreactor for sewage treatment according to claim 1, it is characterised in that: the filling body
(1) it is cube sponge block that side length is 5 ~ 8cm.
4. a kind of packing method of the filler of bioreactor for sewage treatment, which comprises the following steps:
1) filling body (1) is loaded not less than multiple mesh bags (2) of 10kgf no more than 2cm, load-bearing using aperture；
2) the multiple mesh bags (2) for being filled with filling body (1) are uniformly filled up to the packing area of bioreactor.
5. a kind of packing method of the filler of bioreactor for sewage treatment according to claim 4, it is characterised in that:
In step 1), 2000 filling bodies (1) are filled in each mesh bag (2).
6. a kind of packing method of the filler of bioreactor for sewage treatment according to claim 4, it is characterised in that:
In step 1), the filling body (1) is the cube sponge block that side length is 5cm, and the aperture of the mesh bag (2) is 1cm.
7. a kind of packing method of the filler of bioreactor for sewage treatment according to claim 4, it is characterised in that:
In step 1), the filling body (1) is the cube sponge block that side length is 8cm, and the aperture of the mesh bag (2) is 2cm.
8. a kind of packing method of the filler of bioreactor for sewage treatment according to claim 4, it is characterised in that:
In step 2, the packing area height is 1 ~ 3m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810870948.0A CN108928910B (en) | 2018-08-02 | 2018-08-02 | Filler for sewage treatment bioreactor and filling method of filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810870948.0A CN108928910B (en) | 2018-08-02 | 2018-08-02 | Filler for sewage treatment bioreactor and filling method of filler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108928910A true CN108928910A (en) | 2018-12-04 |
| CN108928910B CN108928910B (en) | 2024-10-11 |
Family
ID=64445291
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810870948.0A Active CN108928910B (en) | 2018-08-02 | 2018-08-02 | Filler for sewage treatment bioreactor and filling method of filler |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110862198A (en) * | 2019-12-11 | 2020-03-06 | 浙江兴运生态修复技术服务有限公司 | Construction method of arched ecological corridor for purifying low-pollution water entering river |
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| JPH0568991A (en) * | 1991-09-10 | 1993-03-23 | Chiyoda Corp | Bacteria carrier packed net bag |
| KR19990073116A (en) * | 1999-05-20 | 1999-10-05 | 정명화 | A method of manufacturing for specific gravity controlled fluidizing carrier for biological wastewater treatment |
| CN1380137A (en) * | 2002-03-14 | 2002-11-20 | 安徽工业大学华冶自动化工程公司 | Spherical porous light haydite for treating waste water and its production method |
| JP2004275176A (en) * | 2003-03-14 | 2004-10-07 | Sang Bae Han | Biomembrane carrier improved in specific surface area, biological affinity, and fluidity |
| CN107628669A (en) * | 2017-11-08 | 2018-01-26 | 钟华 | Mixed bacteria, strain carrier and the method for volatile phenol pollutant in sustainable degraded creek black and odorous water |
-
2018
- 2018-08-02 CN CN201810870948.0A patent/CN108928910B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0568991A (en) * | 1991-09-10 | 1993-03-23 | Chiyoda Corp | Bacteria carrier packed net bag |
| KR19990073116A (en) * | 1999-05-20 | 1999-10-05 | 정명화 | A method of manufacturing for specific gravity controlled fluidizing carrier for biological wastewater treatment |
| CN1380137A (en) * | 2002-03-14 | 2002-11-20 | 安徽工业大学华冶自动化工程公司 | Spherical porous light haydite for treating waste water and its production method |
| JP2004275176A (en) * | 2003-03-14 | 2004-10-07 | Sang Bae Han | Biomembrane carrier improved in specific surface area, biological affinity, and fluidity |
| CN107628669A (en) * | 2017-11-08 | 2018-01-26 | 钟华 | Mixed bacteria, strain carrier and the method for volatile phenol pollutant in sustainable degraded creek black and odorous water |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110862198A (en) * | 2019-12-11 | 2020-03-06 | 浙江兴运生态修复技术服务有限公司 | Construction method of arched ecological corridor for purifying low-pollution water entering river |
| CN110862198B (en) * | 2019-12-11 | 2022-04-12 | 浙江兴运生态修复技术服务有限公司 | Construction method of arched ecological corridor for purifying low-pollution water entering river |
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| CN108928910B (en) | 2024-10-11 |
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