CN115947431A - Method for rapidly combining flocs by using micro-sand as crystallization nucleus - Google Patents
Method for rapidly combining flocs by using micro-sand as crystallization nucleus Download PDFInfo
- Publication number
- CN115947431A CN115947431A CN202211735465.2A CN202211735465A CN115947431A CN 115947431 A CN115947431 A CN 115947431A CN 202211735465 A CN202211735465 A CN 202211735465A CN 115947431 A CN115947431 A CN 115947431A
- Authority
- CN
- China
- Prior art keywords
- water
- sand
- sedimentation
- micro
- filler
- 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.)
- Pending
Links
- 239000004576 sand Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000002425 crystallisation Methods 0.000 title claims description 7
- 230000008025 crystallization Effects 0.000 title claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 238000004062 sedimentation Methods 0.000 claims abstract description 49
- 238000002156 mixing Methods 0.000 claims abstract description 36
- 239000000945 filler Substances 0.000 claims abstract description 33
- 239000010865 sewage Substances 0.000 claims abstract description 26
- 239000008394 flocculating agent Substances 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 239000008213 purified water Substances 0.000 claims abstract description 9
- 239000013049 sediment Substances 0.000 claims abstract description 9
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 9
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 5
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 4
- 229920002401 polyacrylamide Polymers 0.000 claims description 4
- 239000002351 wastewater Substances 0.000 claims description 4
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 3
- 238000004065 wastewater treatment Methods 0.000 claims 6
- 229910000358 iron sulfate Inorganic materials 0.000 claims 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims 1
- 239000010802 sludge Substances 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 12
- 238000000926 separation method Methods 0.000 abstract description 11
- 239000002245 particle Substances 0.000 abstract description 10
- 230000009471 action Effects 0.000 abstract description 5
- 239000013078 crystal Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 abstract description 3
- 239000013043 chemical agent Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 10
- 238000001556 precipitation Methods 0.000 description 7
- 238000005273 aeration Methods 0.000 description 6
- 230000016615 flocculation Effects 0.000 description 6
- 238000005189 flocculation Methods 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 239000000084 colloidal system Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- 238000012856 packing Methods 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000003311 flocculating effect Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening 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
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to the technical field of sewage treatment, in particular to a method for quickly combining suspended matters in water with flocs by using micro-sand as a crystal nucleus, which comprises the following steps: s1, introducing sewage to be treated into a water inlet pipe, and introducing a flocculating agent into an upper opening of the water inlet pipe; s2, introducing the obtained first mixture into a sedimentation tank for mixed sedimentation, sequentially arranging a mixing area filled with VF filler and a sedimentation area introduced with micro-sand in the sedimentation tank from top to bottom, aerating the bottom of the sedimentation area, and transversely inserting a water outlet pipe above the filler filled in the mixing area; and respectively obtaining purified water and sediment of silt at the upper part and the lower part of the sedimentation tank. The invention uses micro-sand particles and a chemical agent flocculant to strengthen flocs so as to improve the settling property of suspended matters in water; by utilizing the internal structure of the filler, the hydraulic distribution is uniform, the direction of the water flow is continuously changed in the rising process, the activated sludge is intercepted under the action of inertia, and the solid-liquid separation efficiency of the activated sludge is further improved.
Description
5 field of the invention
The invention relates to the technical field of sewage treatment, in particular to a method for quickly combining flocs by using micro-sand as a crystal nucleus.
Background
The sewage generated by the large-scale breeding place is mainly 'three-high' sewage with high concentration, high ammonia nitrogen, high suspended matters and large difficulty in treating 0. The characteristics of large quantity, relative centralization and large processing difficulty cause a plurality of problems in the processing process. The pretreatment method can reduce the load of sewage pollutants in the subsequent treatment step, and simultaneously prevent large solids or impurities from entering a subsequent treatment link to cause congestion or damage of treatment equipment. Therefore, appropriate pretreatment is required before biochemical treatment to reduce the subsequent load.
However, the traditional pretreatment precipitation separation process technology in the prior art has the defects of large floor area, long retention time of 5, long process flow, poor separation effect and the like.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for rapidly combining suspended matters in water with flocs by using micro-sand as a crystal nucleus, solving the defects of large occupied area, long retention time, long process flow, poor separation effect and the like of the traditional precipitation separation process technology in the prior art, and being suitable for municipal sewage and other sewage; by utilizing the internal structure of the filler, the hydraulic distribution is uniform, the direction of the water flow is continuously changed in the rising process, the activated sludge is intercepted under the action of inertia, and the solid-liquid separation efficiency of the activated sludge is further improved.
In order to solve the technical problems, the invention provides the following technical scheme: 5 the method for rapidly combining flocs by suspended matters in water by using the micro-sand as a crystallization nucleus comprises the following steps:
s1, introducing sewage to be treated into a water inlet pipe, introducing a flocculating agent into an upper opening of the water inlet pipe, and preliminarily mixing the sewage and the flocculating agent in the water inlet pipe to obtain a first mixture;
s2, introducing the first mixture into a sedimentation tank for mixed sedimentation, sequentially arranging a mixing area filled with VF filler, a sedimentation area introduced with micro-sand and aerating at the bottom of the sedimentation area from top to bottom in the sedimentation tank, transversely inserting a water outlet pipe above the VF filler in the mixing area, wherein one end of the water outlet pipe is a water outlet end, the other end of the water outlet pipe is a closed end, the closed end extends into the mixing area of the sedimentation tank, and the top of the side surface of the water outlet pipe is provided with water outlets arranged at intervals along the axial direction of the water outlet pipe, so that purified water from the upper part of the mixing area enters the water outlet pipe through the water outlets and is discharged; and respectively obtaining purified water and sediment of silt at the upper part and the lower part of the sedimentation tank through the mixed sedimentation.
Preferably, in S1, the flocculant is an iron salt or an organic flocculant or a composite flocculant. For example, the iron salt is preferably Polymeric Ferric Chloride (PFC) and Polymeric Ferric Sulfate (PFS). The organic flocculant is preferably Polyacrylamide (PAM). The composite flocculant is the combination of polyaluminium chloride and polyferric sulfate.
Preferably, the flocculant comprises any one of polymeric ferric chloride, polymeric ferric sulfate and polyacrylamide, or a combination of polymeric aluminum chloride and polymeric ferric sulfate.
Wherein preferably, the flocculating agent is polymeric ferric sulfate. More preferably, the amount of the flocculant is 100-2000mg/L in terms of the mass of ferric sulfate relative to the sewage to be treated. The optimal scheme can accelerate the breaking stability of the pollutants and is more beneficial to the adsorption of the pollutants to form flocs subsequently.
Wherein preferably, the VF filler is of a spiral pore structure or a honeycomb structure.
Wherein preferably the fill height of the VF filler is 0.6-2.7m. This preferred scheme can make the water yield get into and carry out abundant rapid mixing flocculation in VF filler after the mixing zone, more does benefit to the pollutant and adsorbs the sediment.
Wherein preferably the grit is introduced from below the sides of the settling zone.
Preferably, in S2, the adding amount of the micro-sand is determined according to the amount of flocs generated in a small-dose flocculation experiment, as long as suspended matters and colloids with high carbon sources can be rapidly precipitated and separated.
It will be appreciated that the micro-sand precipitation in the precipitation zone separates the high carbon source suspension and colloid, creating a flocculated mass which does not enter the VF packing area and is trapped by the VF packing.
In the invention, sewage enters the mixing zone, and forms rotational flow in the mixing zone and the settling zone through air stripping aeration, thereby promoting mixing flocculation in the VF filler zone, promoting the mixing of pollutant floc and micro-sand in the settling zone and accelerating the settling.
The sediment can be separated subsequently to obtain sludge and micro-sand, and the micro-sand can be recycled.
The technical scheme of the invention has the following beneficial effects:
in the scheme, the flocculating agent is added into the water inlet pipe, the micro-sand is added between VF filler and bottom aeration, and micro-sand particles and the chemical agent flocculating agent are used for strengthening flocs so as to improve the settling performance of suspended matters in water. The micro sand is used as a crystallization nucleus to be mixed with micro flocs in sewage, the process of quickly combining the micro sand and the flocs needs to be contacted and collided, and particles can collide with the wall to intercept heavier flocs. By arranging the VF filler in the mixing area and utilizing the internal structure of the filler, the hydraulic distribution is uniform, the direction of the water flow is continuously changed due to the potential in the rising process of the water flow, the problem of uniform mixing of large water volume is solved, and the VF filler is more suitable for being combined with a micro-sand crystal nucleus; activated sludge in the wastewater can be intercepted by the filler under the action of inertia, so that the solid-liquid separation efficiency of the activated sludge is further improved. Meanwhile, the formed flocculating constituents are suspended by utilizing the upward water flow to form a stable sludge layer, the incoming water is not only required to separate the activated sludge through the action of comprehensive force, but also required to be treated through the actions of interception, contact coagulation and the like of the sludge layer, the treatment efficiency is greatly improved, and the stability of the outgoing water is ensured.
The hydraulic mixing mode solves the problem that large water volume is difficult to mix, and can efficiently and quickly mix the flocculating agent and the micro-sand. Adding coagulant into water to destabilize suspended matters and colloid particles in the water, then adding micro-sand carrier particles with higher density, so that the destabilized impurity particles take the micro-sand carriers as flocculation cores, and quickly generate alum flocs with higher density through the bridging adsorption effect of high molecular chains and the deposition and net-catching effect of the micro-sand particles, thereby greatly shortening the settling time and improving the treatment effect under the separation effect of the filler. The micro sand can accelerate flocculation and agglomeration to be compact, the volume of floc particles is increased, the retention time of the sedimentation tank is shortened, and the rapid solid-liquid separation is realized.
According to the treatment method, the flocculating agent, the micro-sand, the VF filler and the aeration are organically combined in a specific structure, so that the rapid and efficient mixing can be carried out, the settling time is greatly shortened, the settling efficiency is improved, and a good settling effect is achieved; and can realize continuous discharge of purified water.
Drawings
FIG. 1 is a schematic diagram of a structure of the present invention.
Fig. 2 is a schematic view of a structure of the packing.
[ reference numerals ]
1. The sedimentation tank, 11, mixing area, 12, sedimentation area, 2, inlet tube, 3, flocculating agent import pipe, 4, little sand import pipe, 5, aeration zone, 6, outlet pipe, 61, outlet.
Detailed Description
As shown in FIG. 1, the present invention provides a method for rapidly combining flocs in suspended matters in water by using micro-sand as a crystallization nucleus, which comprises the following steps:
s1, introducing sewage to be treated into a water inlet pipe 2, communicating an opening in the water inlet pipe 2 with a flocculant inlet pipe 3 to introduce a flocculant, and performing primary mixing in the water inlet pipe 2 to obtain a first mixture;
s2, introducing the first mixture into a sedimentation tank 1 for mixing and sedimentation, sequentially arranging a mixing area 11 filled with VF filler and a sedimentation area 12 introduced with micro-sand in the sedimentation tank 1 from top to bottom, arranging an aeration area 5 at the bottom of the sedimentation area 12 for aeration, transversely inserting a water outlet pipe 6 above the VF filler in the mixing area 11, wherein one end of the water outlet pipe 6 is a water outlet end, the other end of the water outlet pipe is a closed end, the closed end extends into the mixing area 11 of the sedimentation tank 1, and the top of the side surface of the water outlet pipe 6 is provided with water outlets 61 arranged at intervals along the axial direction of the water outlet pipe 6, so that purified water from the upper part of the mixing area 11 enters the water outlet pipe 6 through the water outlets 61 and is discharged; and respectively obtaining purified water and sediment sludge at the upper part and the lower part of the sedimentation tank 1 through the mixed sedimentation.
It will be appreciated that in use, the water level is above the VF filler and below the drain 61 of the outlet duct 6.
When the device is used, sewage enters the sedimentation tank 1 from the water inlet pipe 2, is mixed with a flocculating agent in the flocculating agent inlet pipe 3 for preliminary flocculation treatment before entering, is deeply mixed in a filler in the mixing area 11 of the sedimentation tank 1, and pores in the filler ensure that the hydraulic power is uniformly distributed and uniformly mixed, so that the treatment effect is promoted; meanwhile, the sediment zone 12 is aerated and mixed with the micro-sand, so that the conglomeration and sedimentation of flocs are accelerated, and the retention time of the sedimentation tank is shortened.
In the invention, the components with large density such as flocculate in the sewage sink in the sedimentation tank 1 and enter the sedimentation zone 12, and the water in the sewage is left above the mixing zone 11 and enters the water outlet pipe 6 through the water outlet to be discharged.
The sewage to be treated can be COD sewage, and the method is more suitable for treating the COD sewage. In the sewage treatment process, sewage particle COD and colloid COD are respectively separated by a flocculating agent and micro-sand to carry out flocculating precipitation, and meanwhile, part of soluble COD is adsorbed into activated sludge floc and is separated by precipitation to obtain the large water volume up to the standard.
The VF filler of the invention is an existing product, such as the VF filler of the applicant's earlier patent CN106044876B, and is not described in detail herein.
Wherein preferably, the pores in the filler are distributed in a plurality of directions including up, down, left, and right.
Wherein preferably the filler is of a spiral pore structure or a honeycomb structure (as shown in figure 2).
Wherein, the bottom of the sedimentation tank 1 is preferably conical and is provided with a sludge and sand sediment outlet.
Wherein preferably, the micro sand is introduced from the lower side of the side surface of the settling zone 11, and the inlet pipe 4 for the micro sand is arranged below the side surface of the settling zone 11.
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
Example 1
A method for the rapid association of flocs in suspension in water using microsize as crystallization nuclei, carried out in an apparatus as shown in figure 1, comprising:
s1, mixing sewage and a flocculating agent (specifically Polymeric Ferric Sulfate (PFS)) for preliminary mixing to obtain a first mixture;
s2, introducing the first mixture into a sedimentation tank 1 for mixed sedimentation, arranging a mixing area 11 filled with VF filler and a sedimentation area 12 introduced with micro-sand in the sedimentation tank 1 from top to bottom, and aerating at the bottom of the sedimentation tank 1; purified water and sediment are respectively obtained at the upper part and the lower part of the sedimentation tank 1 through the mixed sedimentation; the filling height of the VF filler is 0.6m.
The sewage of the embodiment contains COD, ammonia nitrogen, total nitrogen, SS, total phosphorus, PH and the like, and when the flocculating agent is added to 1.5mg/mL, the generated flocs are larger and more, and the adsorbed sand amount is relatively more.
Example 2
The process of example 1 was followed, except that the amount of the flocculant added was 2mg/mL relative to the wastewater.
In this example, the difference between the effect of settling the water sample and the state of the supernatant was smaller than that in example 1, but the amount of sand lost with flocs during separation was 30% more than that in example 1, and the amount of sand lost was the largest.
Example 3
The process of example 1 was followed, except that the amount of the flocculant added was 1.3mg/mL relative to the wastewater.
In this example, the amount of the flocculant in water was insufficient to produce small flocs, resulting in 20% less micro-sand attached to the flocs than in example 1, and less sand lost with the flocs during separation.
Comparative example 1
The process of example 1 was followed, except that no microsritings were introduced.
In the comparative example, the supernatant of the water sample subjected to the micro-sand assisted sedimentation is clear, the sedimentation speed of the water sample without the micro-sand is slow, the supernatant is turbid and is not bright, and a large number of fine suspended particles exist.
Comparative example 2
The process of example 1 was followed except that the VF filler was not filled.
In this comparative example, the water amount was not uniformly mixed, the mixing rate after adding the agent was slow, and the precipitation effect was not good.
While the foregoing is directed to the preferred embodiment of the present invention, it will be appreciated by those skilled in the art that various changes and modifications may be made therein without departing from the principles of the invention as set forth in the appended claims.
Claims (7)
1. The method for rapidly combining the flocs by using the micro-sand as the crystallization nucleus is characterized by comprising the following steps of:
s1, introducing sewage to be treated into a water inlet pipe, introducing a flocculating agent into an upper opening of the water inlet pipe, and preliminarily mixing the sewage and the flocculating agent in the water inlet pipe to obtain a first mixture;
s2, introducing the first mixture into a sedimentation tank for mixing and sedimentation, sequentially arranging a mixing zone filled with VF filler and a sedimentation zone introduced with micro-sand in the sedimentation tank from top to bottom, aerating the bottom of the sedimentation zone, transversely inserting a water outlet pipe above the VF filler in the mixing zone, wherein one end of the water outlet pipe is a water outlet end, the other end of the water outlet pipe is a closed end, the closed end of the water outlet pipe extends into the mixing zone of the sedimentation tank, and the top of the side surface of the water outlet pipe is provided with water outlets arranged at intervals along the axial direction of the water outlet pipe, so that purified water from the upper part of the mixing zone enters the water outlet pipe through the water outlets and is discharged; and respectively obtaining purified water and sediment of silt at the upper part and the lower part of the sedimentation tank through the mixed sedimentation.
2. The wastewater treatment method according to claim 1, wherein the flocculant comprises any one of poly-ferric chloride, poly-ferric sulfate, polyacrylamide, or a combination of poly-aluminum chloride and poly-ferric sulfate.
3. The wastewater treatment method according to claim 1, wherein the flocculant is polymeric ferric sulfate.
4. The wastewater treatment method according to claim 3, wherein the amount of the flocculant is 100 to 2000mg/L in terms of the mass of iron sulfate with respect to the wastewater to be treated.
5. The wastewater treatment method according to claim 1, wherein the VF filler is of a spiral pore structure or a honeycomb structure.
6. The wastewater treatment method according to claim 1, wherein the filling height of the VF filler is 0.6-2.7m.
7. The wastewater treatment method according to claim 1, wherein the micro-sand is introduced from below the side of the settling zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211735465.2A CN115947431A (en) | 2022-12-31 | 2022-12-31 | Method for rapidly combining flocs by using micro-sand as crystallization nucleus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211735465.2A CN115947431A (en) | 2022-12-31 | 2022-12-31 | Method for rapidly combining flocs by using micro-sand as crystallization nucleus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115947431A true CN115947431A (en) | 2023-04-11 |
Family
ID=87285704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211735465.2A Pending CN115947431A (en) | 2022-12-31 | 2022-12-31 | Method for rapidly combining flocs by using micro-sand as crystallization nucleus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115947431A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040055961A1 (en) * | 2001-02-09 | 2004-03-25 | Patrick Binot | Method and plant for thickening sludge derived from water treatment by flocculation- decantation with ballasted floc |
| CN106044876A (en) * | 2016-06-28 | 2016-10-26 | 维克·恩格拜 | Method for separation/enrichment of sludge |
| CN106315797A (en) * | 2016-08-18 | 2017-01-11 | 长江水利委员会长江科学院 | Small fine dosing, coagulating and precipitating integrated device |
| CN106698624A (en) * | 2017-03-08 | 2017-05-24 | 南通华新环保设备工程有限公司 | Dielectric-accelerated high-density sedimentation tank water treatment system and process |
| CN111925022A (en) * | 2020-08-31 | 2020-11-13 | 南京中电环保水务有限公司 | Efficient sedimentation tank for underground mine |
| CN212387864U (en) * | 2020-04-28 | 2021-01-22 | 济南上华科技有限公司 | Pretreatment device for treating refuse penetrating fluid through DTRO |
| CN114772693A (en) * | 2022-03-18 | 2022-07-22 | 河北恒特环保工程有限公司 | Efficient micro-sand circulating precipitation device and method thereof |
-
2022
- 2022-12-31 CN CN202211735465.2A patent/CN115947431A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040055961A1 (en) * | 2001-02-09 | 2004-03-25 | Patrick Binot | Method and plant for thickening sludge derived from water treatment by flocculation- decantation with ballasted floc |
| CN106044876A (en) * | 2016-06-28 | 2016-10-26 | 维克·恩格拜 | Method for separation/enrichment of sludge |
| CN106315797A (en) * | 2016-08-18 | 2017-01-11 | 长江水利委员会长江科学院 | Small fine dosing, coagulating and precipitating integrated device |
| CN106698624A (en) * | 2017-03-08 | 2017-05-24 | 南通华新环保设备工程有限公司 | Dielectric-accelerated high-density sedimentation tank water treatment system and process |
| CN212387864U (en) * | 2020-04-28 | 2021-01-22 | 济南上华科技有限公司 | Pretreatment device for treating refuse penetrating fluid through DTRO |
| CN111925022A (en) * | 2020-08-31 | 2020-11-13 | 南京中电环保水务有限公司 | Efficient sedimentation tank for underground mine |
| CN114772693A (en) * | 2022-03-18 | 2022-07-22 | 河北恒特环保工程有限公司 | Efficient micro-sand circulating precipitation device and method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2010515567A (en) | System and method for promoting activated sludge treatment | |
| CN109775896B (en) | Device and method for deeply purifying biochemical tail water by coupling ozone catalytic oxidation and coagulating sedimentation | |
| CN110386713B (en) | Super-efficient separation system and method based on magnetic coagulation precipitation and activated carbon adsorption | |
| KR20160029272A (en) | a simple structured wastewater treatment system using multi step aerating floation method and the wastewater treatment method | |
| KR20160032067A (en) | a simple structured wastewater treatment system using multi step aerating floation method and the wastewater treatment method | |
| CN111892133B (en) | Biochemical tail water deep nitrogen and phosphorus removal method based on magnetic coagulation-adsorption coupling | |
| CN111233285A (en) | Integrated sewage purification and upgrading process | |
| CN209759227U (en) | Integrated short-distance efficient sewage treatment device | |
| CN1247291C (en) | Sleeve type flow speed changing swirling flow composite reactor and high efficiency composite precipitation tank | |
| CN110950409A (en) | Heavy medium coagulating sedimentation water treatment method | |
| CN210457810U (en) | Super-efficient separation system based on magnetic coagulation sedimentation and activated carbon adsorption | |
| CN203295250U (en) | Novel high-speed high-efficiency sedimentation tank for sand addition | |
| CN210419517U (en) | Device for deeply purifying biochemical tail water by ozone catalytic oxidation coupled with coagulating sedimentation | |
| CN111977911A (en) | Method for treating leachate wastewater in electrolytic aluminum slag yard | |
| KR100313187B1 (en) | Rapid mixing coagulant system for treating wastewater and method thereof | |
| CN115947431A (en) | Method for rapidly combining flocs by using micro-sand as crystallization nucleus | |
| CN107915366A (en) | A kind of technique that advanced treating is carried out to garbage leachate using ozone | |
| CN116143352A (en) | Full-quantification combined treatment system and method for landfill leachate | |
| JP4144952B2 (en) | Purification methods for rivers and lakes | |
| CN112250155B (en) | Heavy medium quick-settling water treatment method | |
| CN102350104A (en) | Chemical-biological flocculation radiation-flow secondary settler | |
| CN116022895A (en) | Sewage pretreatment carbon source rapid separation device and sewage treatment method | |
| CN112250257A (en) | Sewage treatment system, garbage leachate treatment integrated system and sewage treatment method | |
| CN106865753A (en) | The processing unit and processing method of nano_scale particle in a kind of removal waste water based on aerobic particle mud | |
| CN113683167A (en) | Magnetic coagulation sedimentation sewage treatment system and method based on low-density magnetic particles |
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 |