CN106830298B - Modified suspended biological elastic filler for treating industrial wastewater and domestic sewage and preparation method thereof - Google Patents
Modified suspended biological elastic filler for treating industrial wastewater and domestic sewage and preparation method thereof Download PDFInfo
- Publication number
- CN106830298B CN106830298B CN201710251870.XA CN201710251870A CN106830298B CN 106830298 B CN106830298 B CN 106830298B CN 201710251870 A CN201710251870 A CN 201710251870A CN 106830298 B CN106830298 B CN 106830298B
- Authority
- CN
- China
- Prior art keywords
- filler
- percent
- elastic filler
- cage
- zone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000945 filler Substances 0.000 title claims abstract description 80
- 239000010865 sewage Substances 0.000 title claims abstract description 14
- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 12
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 18
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 18
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 14
- 239000000440 bentonite Substances 0.000 claims abstract description 14
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 14
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920002101 Chitin Polymers 0.000 claims abstract description 13
- 238000005273 aeration Methods 0.000 claims abstract description 12
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 24
- 239000011259 mixed solution Substances 0.000 claims description 12
- 239000011343 solid material Substances 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 238000005469 granulation Methods 0.000 claims description 4
- 230000003179 granulation Effects 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000005491 wire drawing Methods 0.000 claims description 4
- 239000003344 environmental pollutant Substances 0.000 claims description 3
- 231100000719 pollutant Toxicity 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 14
- 239000010802 sludge Substances 0.000 abstract description 9
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 5
- 239000002028 Biomass Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 abstract description 2
- 230000032770 biofilm formation Effects 0.000 abstract 1
- 230000008569 process Effects 0.000 description 7
- 230000007547 defect Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/109—Characterized by the shape
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- 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
- Life Sciences & Earth Sciences (AREA)
- 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)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention relates to a modified suspended biological elastic filler for treating industrial wastewater and domestic sewage and a preparation method thereof. The modified suspended biological elastic filler consists of a cylindrical high-density polyethylene cage and an elastic filler, and the elastic filler master batch consists of 66.2 to 98.1 percent of high-density polyethylene, 1.0 to 38.3 percent of bentonite, 1 to 6 percent of maleic anhydride, 0.1 to 0.8 percent of dicumyl peroxide and 0.2 to 2 percent of chitin. The filler has the characteristics of large biomass of the elastic filler and suspension in water, and the hydrophilicity of the filler is improved and the biofilm formation is improved by modifying the filler, so that the biofilm is not agglomerated, the total amount of organisms is increased, the COD removal rate is increased, and the ammonia nitrogen removal efficiency is doubled. Meanwhile, the improvement of the filler structure leads the filler to have light weight, greatly reduced manufacturing cost and greatly reduced sludge yield, and can replace the traditional activated sludge method. The filler can be directly put into an aeration tank without special installation, is convenient to use and has obvious effect.
Description
Technical Field
The invention belongs to the field of industrial wastewater and domestic sewage treatment, and particularly relates to a modified suspended biological elastic filler for treating industrial wastewater and domestic sewage and a preparation method thereof.
Background
At present, the main processes for sewage treatment are an activated sludge method, a biological contact oxidation method and an aeration biological filter. The activated sludge process is most widely applied to large-scale sewage facilities, the biological contact oxidation process is applied to medium and small-scale facilities, the biological contact oxidation process is also called a biofilm process, and the core of the biological contact oxidation process is biological filler.
In the prior art, most biological fillers are fixed, the fixed fillers have large effective area and large total amount of organisms, can be used alone in medium and small facilities instead of an activated sludge method, and have the greatest advantage of low sludge yield. However, the device has the defects of complex installation, difficult maintenance of the bottom aeration system, easy agglomeration, low efficiency and the like. In order to solve the defect of fixed biological filler, suspended biological filler is present at present, and the suspended biological filler has the advantages of convenient installation, coexistence with activated sludge and good treatment effect because the density is close to that of water and can be directly put into water. However, the greatest disadvantage of suspended fillers is that the biomass is not high and the cost of the suspended fillers alone is too high.
Therefore, the biological filler with high biological total amount, high COD removal rate and low cost is needed in the field.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a modified suspended biological elastic filler for treating industrial wastewater and domestic sewage and a preparation method thereof. The modified filler has the advantages of high biomass of the elastic filler, good treatment effect of the suspended filler and the like.
In order to achieve the purpose, the invention adopts the following technical scheme: the modified suspended biological elastic filler for treating industrial wastewater and domestic sewage comprises the following raw materials in percentage by mass:
66.2 to 98.1 percent of high-density polyethylene, 1.0 to 38.3 percent of bentonite, 1 to 6 percent of maleic anhydride, 0.1 to 0.8 percent of dicumyl peroxide and 0.2 to 2 percent of chitin;
the modified suspended biological elastic filler consists of a cylindrical high-density polyethylene cage and an elastic filler, wherein the cage consists of a transverse ring, an upright post and a transverse scale. The horizontal circle has threely, is located cylindrical upper bottom surface, lower bottom surface and the cylindrical centre respectively, is fixed three horizontal circle by the stand, horizontal balance is as upper and lower lacing wire vertical fixation inside the cage. The elastic filler is filamentous and is fixed at the central position of the cage by a central rope in a penetrating way, and the elastic filler is radially distributed in the cage.
Furthermore, the size of the cylindrical high-density polyethylene cage is less than or equal to phi 100 multiplied by 100 mm.
Another subject of the present invention is a process for preparing the modified suspended bioelastic filler described above, comprising the following steps:
s1, weighing the following raw materials in proportion: 66.2 to 98.1 percent of high-density polyethylene, 1.0 to 38.3 percent of bentonite, 1 to 6 percent of maleic anhydride, 0.1 to 0.8 percent of dicumyl peroxide and 0.2 to 2 percent of chitin;
s2, dissolving maleic anhydride and dicumyl peroxide in acetone to obtain a mixed solution I;
s3, uniformly mixing the mixed solution I with high-density polyethylene, bentonite and chitin, and naturally volatilizing acetone to obtain a solid material;
s4, putting the solid material into a screw extruder, and performing melt extrusion granulation, wherein the temperature of each section of the extruder is as follows: the first zone is 160-170 ℃, the second zone is 180-190 ℃, the third zone is 200-220 ℃, the fourth zone is 220-240 ℃, the fifth zone is 220-240 ℃, the sixth zone is 220-240 ℃, and the head of a screw extruder is 190-200 ℃, and the extruded master batch is subjected to wire drawing and shaping to obtain filamentous elastic filler;
s5, fixing the filamentous elastic filler by using a central rope, and radially installing the filamentous elastic filler in the cage to obtain the modified suspended biological elastic filler.
The third purpose of the invention is to protect the application of the modified suspended biological elastic filler, and the application method comprises the following steps: the filler is put into an aeration tank and is driven by an aeration device at the bottom of the tank to rotate in water, and a biological film grows on the elastic filler in the filler, and can degrade pollutants in industrial wastewater and sewage.
The modified suspended biological elastic filler combines the advantages of the elastic filler and the suspended filler, and overcomes the defects of complex installation, difficult maintenance of a bottom aeration system, easy agglomeration, efficiency reduction and the like of the fixed filler. Meanwhile, the defects of low total amount of suspended filler organisms and high single use cost are avoided. The filler has the characteristics of large biomass of the elastic filler and suspension in water, and the hydrophilicity of the filler is improved by modifying the filler and grafting the maleic anhydride and the dicumyl peroxide to the surface of polyethylene, so that the biofilm is not agglomerated, the total amount of organisms is increased, the COD removal rate is increased, and the ammonia nitrogen removal efficiency is doubled. The addition of bentonite also improves the hydrophilicity of the filler. Meanwhile, the improvement of the structure leads the weight of the filler to be light, the manufacturing cost to be greatly reduced, the sludge yield to be greatly reduced, and the traditional activated sludge method can be replaced. The filler can be directly put into an aeration tank without special installation, is convenient to use and has obvious effect.
Drawings
FIG. 1 is a schematic structural diagram of a modified suspended biological elastic filler of the invention;
FIG. 2 is a top view of the modified suspended biological elastomer packing of the present invention.
Wherein, 1, upright column, 2, horizontal ring, 3, horizontal scale, 4, elastic filler.
Detailed Description
To facilitate an understanding of the present invention, the present invention will now be described more fully with reference to the accompanying figures 1-2. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example 1
S1, weighing the following raw materials in proportion: 90% of high-density polyethylene, 5% of bentonite, 2.8% of maleic anhydride, 0.2% of dicumyl peroxide and 2% of chitin;
s2, dissolving maleic anhydride and dicumyl peroxide in acetone to obtain a mixed solution I;
s3, uniformly mixing the mixed solution I with high-density polyethylene, bentonite and chitin, and naturally volatilizing acetone to obtain a solid material;
s4, putting the solid material into a screw extruder, and performing melt extrusion granulation, wherein the temperature of each section of the extruder is as follows: the first zone is 160 ℃, the second zone is 180 ℃, the third zone is 210 ℃, the fourth zone is 220 ℃, the fifth zone is 220 ℃, the sixth zone is 240 ℃ and the head of the screw extruder is 200 ℃, and the extruded master batch is subjected to wire drawing and shaping to obtain the filamentous elastic filler 4;
s5, fixing the filamentous elastic filler 4 at the center of the cage by using a center rope, and radially installing the filamentous elastic filler in the cage, wherein the cage consists of a transverse ring 2, an upright post 1 and a transverse scale 3. The transverse rings 2 are three and are respectively positioned on the upper bottom surface of the cylinder, the lower bottom surface of the cylinder and the middle of the cylinder, the three transverse rings 2 are fixed by the upright posts 1, the transverse scales 3 are vertically fixed inside the cage as upper and lower lacing wires, and the upper bottom surface and the lower bottom surface of the cage are transparent.
The upper filler is put into an aeration tank and is driven by an aeration device at the bottom of the tank to rotate in water, and a biological film grows on the elastic filler in the filler, and can degrade pollutants in industrial wastewater and sewage. The COD of the effluent is less than or equal to 1000mg/L, and the ammonia nitrogen is less than or equal to 50mg/L, so that the removal rate of the COD and the ammonia nitrogen is effectively improved.
Example 2
This example differs from example 1 only in the formulation and process parameters for making the elastomeric filler.
S1, weighing the following raw materials in proportion: 70% of high-density polyethylene, 25% of bentonite, 4% of maleic anhydride, 0.8% of dicumyl peroxide and 0.2% of chitin;
s2, dissolving maleic anhydride and dicumyl peroxide in acetone to obtain a mixed solution I;
s3, uniformly mixing the mixed solution I with high-density polyethylene, bentonite and chitin, and naturally volatilizing acetone to obtain a solid material;
s4, putting the solid material into a screw extruder, and performing melt extrusion granulation, wherein the temperature of each section of the extruder is as follows: the first zone is 170 ℃, the second zone is 190 ℃, the third zone is 200 ℃, the fourth zone is 220 ℃, the fifth zone is 230 ℃, the sixth zone is 240 ℃ and the head of the screw extruder is 200 ℃, and the extruded master batch is subjected to wire drawing and shaping to obtain filamentous elastic filler;
the modified suspended biological elastic filler is prepared by the elastic filler according to the method of the embodiment 1, and is put into an aeration tank to degrade industrial wastewater and sewage, wherein the COD of the effluent is less than or equal to 1000mg/L, and the ammonia nitrogen is less than or equal to 50mg/L, so that the removal rate of the COD and the ammonia nitrogen is effectively improved.
Example 3
This example differs from example 1 only in the composition of the elastomeric filler masterbatch.
Weighing raw materials according to a proportion, dissolving 5.5% of maleic anhydride and 0.5% of dicumyl peroxide by using acetone to obtain a mixed solution I, uniformly mixing the mixed solution I with 80.2% of high-density polyethylene, 13% of bentonite and 0.8% of chitin, and naturally volatilizing the acetone to obtain a solid material; the solid material was fed into a screw extruder and pelletized according to the extrusion parameters of example 1.
Example 4
This example differs from example 1 only in the composition of the elastomeric filler masterbatch.
Weighing raw materials according to a proportion, dissolving 1.5% of maleic anhydride and 0.2% of dicumyl peroxide by using acetone to obtain a mixed solution I, uniformly mixing the mixed solution I with 85.2% of high-density polyethylene, 11.6% of bentonite and 1.5% of chitin, and naturally volatilizing the acetone to obtain a solid material; the solid material was fed into a screw extruder and pelletized according to the extrusion parameters of example 1.
Claims (1)
1. A modified suspended biological elastic filler for treating industrial wastewater and domestic sewage is characterized in that mother particles are composed of the following raw materials in percentage by mass:
66.2 to 98.1 percent of high-density polyethylene, 1.0 to 38.3 percent of bentonite, 1 to 6 percent of maleic anhydride, 0.1 to 0.8 percent of dicumyl peroxide and 0.2 to 2 percent of chitin;
the modified suspended biological elastic filler consists of a cylindrical high-density polyethylene cage and an elastic filler (4), wherein the cage consists of a transverse ring (2), an upright post (1) and a transverse scale (3); the three transverse rings (2) are respectively positioned on the upper bottom surface and the lower bottom surface of the cylinder and in the middle of the cylinder, the three transverse rings (2) are fixed by the upright post (1), and the transverse scale (3) is vertically fixed in the cage as an upper tie bar and a lower tie bar; the elastic filler (4) is filamentous and is penetrated and fixed at the central position of the cage by a central rope, and the elastic filler (4) is radially distributed in the cage; the size of the cylindrical high-density polyethylene cage is less than or equal to phi 100 multiplied by 100 mm;
the preparation method of the modified suspended biological elastic filler comprises the following steps:
s1, weighing the following raw materials in proportion: 66.2 to 98.1 percent of high-density polyethylene, 1.0 to 38.3 percent of bentonite, 1 to 6 percent of maleic anhydride, 0.1 to 0.8 percent of dicumyl peroxide and 0.2 to 2 percent of chitin;
s2, dissolving maleic anhydride and dicumyl peroxide in acetone to obtain a mixed solution I;
s3, uniformly mixing the mixed solution I with high-density polyethylene, bentonite and chitin, and naturally volatilizing acetone to obtain a solid material;
s4, putting the solid material into a screw extruder, and performing melt extrusion granulation, wherein the temperature of each section of the extruder is as follows: the first zone is 160-170 ℃, the second zone is 180-190 ℃, the third zone is 200-220 ℃, the fourth zone is 220-240 ℃, the fifth zone is 220-240 ℃, the sixth zone is 220-240 ℃, and the head of a screw extruder is 190-200 ℃, and the extruded master batch is subjected to wire drawing and shaping to obtain filamentous elastic filler;
s5, fixing the filamentous elastic filler by using a central rope, and radially installing the filamentous elastic filler in the cage to obtain the modified suspended biological elastic filler;
the filler is put into an aeration tank and is driven by an aeration device at the bottom of the tank to rotate in water, and a biological film grows on the elastic filler in the filler, and can degrade pollutants in industrial wastewater and sewage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710251870.XA CN106830298B (en) | 2017-04-17 | 2017-04-17 | Modified suspended biological elastic filler for treating industrial wastewater and domestic sewage and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710251870.XA CN106830298B (en) | 2017-04-17 | 2017-04-17 | Modified suspended biological elastic filler for treating industrial wastewater and domestic sewage and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106830298A CN106830298A (en) | 2017-06-13 |
| CN106830298B true CN106830298B (en) | 2020-06-05 |
Family
ID=59148262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710251870.XA Expired - Fee Related CN106830298B (en) | 2017-04-17 | 2017-04-17 | Modified suspended biological elastic filler for treating industrial wastewater and domestic sewage and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106830298B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108946933B (en) * | 2018-08-03 | 2019-05-31 | 南京高新工大生物技术研究院有限公司 | A kind of modified poly ethylene microbe carrier stuffing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1762851A (en) * | 2005-08-29 | 2006-04-26 | 江志伟 | Modified microbe stuffing and its preparation method |
| CN201180099Y (en) * | 2008-07-15 | 2009-01-14 | 李秦生 | Drum-cage shaped suspending filling material |
| CN103203179A (en) * | 2013-03-19 | 2013-07-17 | 王映璋 | Preparation method for multiple micropore negative ion far-infrared electric field biological affinity packing |
| WO2013149662A1 (en) * | 2012-04-04 | 2013-10-10 | Hera S.P.A. | Inoculated bioplastic-based moving bed biofilm carriers |
| CN105621594A (en) * | 2016-01-27 | 2016-06-01 | 苏州科环环保科技有限公司 | Modified MBBR (moving bed biofilm reactor) suspended biological filler and preparation method thereof |
-
2017
- 2017-04-17 CN CN201710251870.XA patent/CN106830298B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1762851A (en) * | 2005-08-29 | 2006-04-26 | 江志伟 | Modified microbe stuffing and its preparation method |
| CN201180099Y (en) * | 2008-07-15 | 2009-01-14 | 李秦生 | Drum-cage shaped suspending filling material |
| WO2013149662A1 (en) * | 2012-04-04 | 2013-10-10 | Hera S.P.A. | Inoculated bioplastic-based moving bed biofilm carriers |
| CN103203179A (en) * | 2013-03-19 | 2013-07-17 | 王映璋 | Preparation method for multiple micropore negative ion far-infrared electric field biological affinity packing |
| CN105621594A (en) * | 2016-01-27 | 2016-06-01 | 苏州科环环保科技有限公司 | Modified MBBR (moving bed biofilm reactor) suspended biological filler and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106830298A (en) | 2017-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106904795B (en) | Cow breeding wastewater treatment process | |
| Zhou et al. | Effect of loading rate on the granulation process and granular activity in a bench scale UASB reactor | |
| CN105668787B (en) | Combined type multi-stage aeration biological filter tank and its sewage treatment process | |
| CN100349811C (en) | Process for treating yellow ginger saponin waste water by hydrochloric acid method | |
| CN103734066A (en) | Seawater recirculating aquaculture system | |
| CN105582890B (en) | A kind of preparation method and applications of composite Nano biomass carbon material | |
| CN102329055A (en) | Aquaculture sewage treatment method | |
| CN105174431B (en) | A kind of spherical deflector type bio-aeration device | |
| CN103880193A (en) | Method for treating wastewater from livestock and poultry breeding by constructing vertical flow artificial wetland based on water supply plant sludge | |
| CN106830298B (en) | Modified suspended biological elastic filler for treating industrial wastewater and domestic sewage and preparation method thereof | |
| JP5895663B2 (en) | Biological treatment method for organic wastewater | |
| CN102583910B (en) | Method for treating waste water in multi-stage catalytic oxidation and microelectrolysis method | |
| CN204417278U (en) | Culturing wastewater processing system | |
| CN211770798U (en) | Hospital sewage treatment process system | |
| CN105293866B (en) | The swash plate selection cultural method and device of a kind of aerobic particle mud | |
| EP0949209A2 (en) | Biological process and anoxic and/or aerobic biological reactor for the purification of liquid residues | |
| CN107055669A (en) | A kind of water remediation agent acted on based on permanent oxidation and light electrolysis and preparation method | |
| CN203668108U (en) | Improved hydrolysis acidification pool | |
| CN205035221U (en) | Organic waste water's processing system | |
| JPH0416297A (en) | Immobilizing carrier for fixed bed type activated sludge treatment of waste water and treatment of waste water | |
| CN202576091U (en) | Integral baffling biological filtering pond sewage treatment device | |
| CN111320324A (en) | Biological filtering device for treating trace antibiotic wastewater and working method thereof | |
| CN210103690U (en) | Small-scale sewage treatment worm bed bioreactor | |
| EP0812807A2 (en) | Process and reactor for continuously microbiologically treating highly loaded wastewater | |
| Gnanapragasam et al. | Effect of temperature on biodegradation of textile dyeing effluent using pilot scale UASB Reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20200605 |