CN112429822B - Little swirl coagulation system - Google Patents
Little swirl coagulation system Download PDFInfo
- Publication number
- CN112429822B CN112429822B CN201910788290.3A CN201910788290A CN112429822B CN 112429822 B CN112429822 B CN 112429822B CN 201910788290 A CN201910788290 A CN 201910788290A CN 112429822 B CN112429822 B CN 112429822B
- Authority
- CN
- China
- Prior art keywords
- vortex
- area
- reaction
- water
- shell
- 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.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/11—Turbidity
-
- 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
- C02F2303/14—Maintenance of water treatment installations
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention provides a micro-vortex coagulation device, which comprises a shell, wherein a water inlet area, a first reaction area, a second reaction area and a transition area are arranged in the shell, the water inlet area is arranged below the first reaction area, and the transition area is arranged below the second reaction area; a plurality of overflow channels are arranged at the upper part of the partition plate to communicate the first reaction zone and the second reaction zone, a plurality of vortex partition plates are arranged in the first reaction zone from bottom to top, vortex through holes are formed in the vortex partition plates, and a plurality of vortex generators are arranged in each vortex generation zone; a star-shaped fin array is arranged in the second reaction zone; the shell side wall of the water inlet area is provided with a water inlet, and the shell side wall of the transition area is provided with a water outlet. The micro vortex coagulation device provided by the invention has the advantages of compact structure, low flocculation dosage and simple process operation, greatly saves the investment cost of integrated emergency water purifying equipment, and is particularly suitable for the treatment of low-temperature and low-turbidity water.
Description
Technical Field
The invention belongs to the technical field of water treatment, and particularly relates to a micro-vortex coagulation device for treating low-temperature low-turbidity water.
Background
The treatment of low-temperature and low-turbidity water is one of the difficulties in water supply treatment engineering and one of the problems to be solved in the field of municipal engineering. In the field of feedwater treatment, no clear definition of low temperature, low turbidity water is given. In winter and spring in northern China, the climate is cold, the water temperature can be reduced to 0-2 ℃, and the turbidity can be reduced to 10-30 NTU (sometimes less than 10 NTU); in the southern area of China, a Yangtze river water system is taken as a representative area, the water temperature can be reduced to 3-7 ℃ along with the coming of winter, the turbidity generally changes within the range of 20 NTU-50 NTU, and surface water with the temperature lower than 10 ℃ or the turbidity lower than 10NTU from 11 months per year to 3 months per year is called low-temperature low-turbidity water. The treatment difficulty of low-temperature and low-turbidity water is higher, and the water quality standard of national drinking water is still difficult to reach even if the adding amount of the flocculating agent is increased. Therefore, the development of a water purification process suitable for low-temperature and low-turbidity water treatment is a problem to be solved in the technical field of water supply engineering at present.
The reason why the low-temperature and low-turbidity water is difficult to treat mainly comprises the following two aspects: (1) the hydrolysis process of the coagulant is endothermic reaction, and when the temperature is lower, the hydrolysis speed of the coagulant is reduced, which is not beneficial to the occurrence of polymerization reaction, and the adsorption and bridging effect among colloidal particles is difficult to realize; when the temperature is low, the viscosity of the water is increased, and the movement of impurity particles in the water is weakened; when the temperature is low, the hydration action of the colloid is outstanding, the colloid is not favorable for coagulation, and meanwhile, the gas with high solubility is adsorbed around the floc, so that the formed floc has low density and is easy to break; (2) when the turbidity is low, impurity particles in water are dissolved in water in a fine state, flocs formed by coagulation have small volume and light density, and easily penetrate through a filter layer in the filtering process to increase the turbidity of the outlet water; when the turbidity is low, the particles are less, so that the mutual collision among the particles is not facilitated, the formation of alum floc is hindered, the stirring strength needs to be increased in order to increase the collision probability among the particles, but the shearing strength of the water flow is increased, the unstable floc formed previously is destroyed, and the turbidity of the outlet water is increased.
Based on these water quality characteristics of low temperature and low turbidity water, a more efficient method than conventional processes is needed, and the water quality standards are difficult to meet with the current conventional water treatment processes. At present, the common flocculation reaction equipment mainly controls the turbulent flow of the flocculation process by changing the direction and the speed of water flow through flow channel control, such as a duplex partition plate flocculation tank, a folded plate flocculation tank and other processes. In the flocculation process, local vortexes of the fluid are difficult to be effectively and intensively controlled, and the energy utilization efficiency of the vortexes is not high. At the same time, the spatial distribution of the vortices is difficult to control. Therefore, the flocculation reaction efficiency is low, the reaction residence time is long, the energy consumption of equipment is high, the occupied area is large, and the load impact resistance is poor. In view of the defects, the invention develops a novel micro-vortex coagulation device, and the device forms a high-proportion high-strength micro-vortex in the device by arranging two vortex reaction areas in a coagulation pool and by means of the synergistic action of a vortex generator and a star-shaped fin, so that the collision probability between a coagulant and colloid is accelerated, colloidal particles are promoted to be rapidly and fully destabilized, and the coagulation effect of low-temperature and low-turbidity water is improved and enhanced. The device is used for solving the problem of low-temperature and low-turbidity water coagulation faced by water purification equipment in the alpine region of the plateau, and is integrated in an emergency water purification shelter with the functions of water taking, purification, storage and water distribution so as to meet the water supply guarantee requirement of personnel arranged on the disaster site in the alpine region of the plateau.
Disclosure of Invention
The invention aims to provide a micro-vortex coagulation device which has the advantages of high coagulation efficiency, small occupied area, excellent effluent quality and strong adaptability to water quality and water quantity change, aiming at the defects in the prior art.
For this reason, the above object of the present invention is achieved by the following technical solutions:
a micro-vortex coagulation device comprises a shell, and is characterized in that a water inlet area, a first reaction area, a second reaction area and a transition area are arranged in the shell, the water inlet area is arranged below the first reaction area, and the transition area is arranged below the second reaction area; the device comprises a water inlet area, a first reaction area, a second reaction area, a transition area, a plurality of vortex generation areas, a plurality of vortex generators and a plurality of water supply pipelines, wherein the water inlet area, the first reaction area, the second reaction area and the transition area are provided with partition plates, the upper part of each partition plate is provided with a plurality of overflow channels to communicate the first reaction area and the second reaction area, the first reaction area is internally provided with a plurality of vortex partition plates from bottom to top so as to partition the vortex generation areas in the vertical direction, the vortex partition plates are arranged between the water inlet area and the first reaction area, the vortex partition plates are provided with vortex through holes, and each vortex generation area is internally provided with the vortex generators which are suspended in the vortex generation areas; a star-shaped fin array is arranged in the second reaction zone, and the star-shaped fin array takes star-shaped fins as units;
a water inlet is formed in the side wall of the shell of the water inlet area, and a water outlet is formed in the side wall of the shell of the transition area;
the space between the star-shaped fin array and the water outlet forms a transition zone in the shell.
While adopting the technical scheme, the invention can also adopt or combine the following technical scheme:
as a preferred technical scheme of the invention, the sizes of the vortex through holes of the vortex partition plates on each layer are respectively the same, and the size of the vortex through hole of the vortex partition plate on the next layer is smaller than that of the vortex through hole of the vortex partition plate on the previous layer.
As a preferred technical scheme of the invention, the star-shaped wing panel is provided with a long wing and a short wing which are perpendicular to each other.
In a preferred embodiment of the present invention, the long wing of the two adjacent star-shaped wings is disposed opposite to the short wing of the adjacent star-shaped wing.
According to the preferable technical scheme, the vortex generator is a porous hollow sphere, the surface aperture ratio of the porous hollow sphere is 45-65%, and the outer surface of the porous hollow sphere is a rough surface.
As the preferable technical scheme of the invention, the bottom of the shell of the water inlet area is provided with a first sewage draining port.
As a preferred technical scheme of the invention, the bottom of the shell of the transition area is provided with a second sewage draining outlet.
As a preferable technical scheme of the invention, the upper part of the shell of the second reaction zone is provided with an overflow port.
As a preferable technical scheme of the invention, the top of the shell of the first reaction zone is provided with a first cover plate.
As a preferable technical scheme of the invention, the top of the shell of the second reaction zone is provided with a second cover plate.
The invention provides a micro vortex coagulation device, which has the following beneficial effects:
(1) the micro vortex coagulation device provided by the invention uses the vortex generator suspended in the vortex generation area, so that the flow velocity and the flow direction of water flow passing through the hole of the vortex generator are changed, and the friction resistance of the inner surface and the outer surface of the vortex generator is added, so that the water flow generates micro vortex flow, the flocculation effect of low-temperature and low-turbidity water is good, the vortex generator has a simple structure, is convenient to install and maintain, can float and rotate slightly in upward flowing water flow, and is not easy to be blocked by floaters;
(2) the micro vortex coagulation device provided by the invention uses the star-shaped fin array in the second reaction area, so that the fluids separated by the star-shaped fins and the fluids in the same flow channel between two horizontally adjacent star-shaped fins have the effects of merging and interference, and the macroscopic uniform distribution of vortices is enhanced; by properly controlling the distance between the star-shaped fin units, the uniformity of the macroscopic overall control of the vortex can be realized, so that the flocculation efficiency is obviously improved;
(3) the micro vortex coagulation device provided by the invention has the advantages that the device has a compact structure, the flocculation dosage is low, the flow operation is simple, the investment cost of integrated emergency water purifying square equipment is greatly saved, the device is particularly suitable for low-temperature and low-turbidity water treatment, the high-efficiency low-temperature and low-turbidity water pretreatment can be provided for the water purifying square cabin in plateau alpine regions, and the turbidity of the water obtained by the treatment can reach below 10 NTU.
Drawings
FIG. 1 is a schematic representation of a micro-vortex coagulation apparatus provided by the present invention.
Fig. 2 is a sectional view taken along a-a in fig. 1.
Detailed Description
The invention is described in further detail with reference to the figures and specific embodiments.
Referring to FIGS. 1-2, the micro-vortex coagulation apparatus includes a housing 100, and a water inlet region 110, a first reaction region 120, a second reaction region 130, and a transition region 140 are disposed in the housing 100. The side wall of the casing 100 of the water inlet region 110 is provided with a water inlet 111, and the first reaction region 120 is provided with a plurality of vortex generating regions 121, in this embodiment, 3 vortex generating regions 121 are provided, but in other embodiments, two or more vortex generating regions 121 may be provided, and these variations fall within the protection scope of the present invention. The water inlet region 110 mainly functions to allow the raw water and the medicament to be fully mixed and then enter a subsequent flocculation reaction region (including a first reaction region 120 and a second reaction region 130); the vortex generators 121a are respectively filled in the three vortex generating areas 121, the vortex generators 121a are porous hollow spheres made of ABS plastic, the surface aperture ratio is 45% -65%, the inner and outer surfaces of the spheres are made into rough surfaces, the wall thickness of the vortex generators 121a is about 2 mm generally, the hydraulic conditions are changed when water flows pass through the surfaces of the vortex generators 121a, the flow velocity and the flow direction of the water flows are changed, and in addition, friction resistance generated by roughening the inner and outer wall surfaces of the vortex generators 121a enables the water flows to generate micro-vortex flow, and the diffusion and collision of particles in water are effectively promoted by the kinetic energy of the plurality of micro-vortex flow; vortex separators 122 are arranged between the vortex generation area 121 and the water inlet area 110 and between adjacent vortex generation areas 121, vortex through holes are formed in the vortex separators 122, the sizes of the vortex through holes of the vortex separators 122 on each layer are respectively the same, the sizes of the vortex through holes of the vortex separators 122 on the next layer are smaller than those of the vortex through holes of the vortex separators 122 on the previous layer, the water flow states passing through different vortex separators 122 are changed, and the flocculation reaction of low-temperature and low-turbidity water is further enhanced.
When water flow enters the second reaction zone 130 through the overflow channel arranged on the partition plate 101, because the flocculation device is provided with the star-shaped fin array 131 in the direction perpendicular to the water flow, under the action of water power, the star-shaped fins in the star-shaped fin array 131 can rotate slightly to a certain extent, and the direction of local water flow is disturbed, in the embodiment, the overflow channel is provided with a plurality of overflow holes 101a, and of course, in other embodiments, the overflow channel can also be provided with a strip overflow hole, and the changes fall within the protection scope of the invention; when water flows through the star-shaped fins, the water is cut, collided and rebounded, the speed, the size and the direction are continuously changed, the large vortex is changed into the small vortex, the small vortex is finally changed into the high-strength high-frequency micro vortex which is distributed in an array form to form a vortex street, the centrifugal inertia effect is multiplied, the particle collision frequency is greatly increased, the effective collision rate is improved, and the flocculation effect is enhanced; by controlling the distance between the star-shaped fin unit structures in the star-shaped fin array 131, the uniformity of the overall vortex macroscopic control can be realized, so that the water is subjected to micro vortex coagulation with higher coagulation efficiency in the second reaction zone 130.
The water after coagulation passes through the transition area 140 to the water outlet 141, the flow rate is reduced along with the water flow coming out of the second reaction area 130 and entering the transition area 140, the energy of the water flow is gradually reduced, and the large flocs are precipitated to the bottom of the tank under the action of gravity; and periodically discharging pollution at later stage. A water outlet 141 is arranged on the side wall of the transition area 140, and water subjected to full flocculation reaction is discharged from the water outlet and enters a subsequent water treatment system; the bottom of the water inlet area 110 and the bottom of the transition area 140 are respectively provided with a sewage outlet 102, and the sewage disposal of the device is carried out regularly in the later period.
The top of the shell 100 is provided with a first reaction zone cover plate 103 and a second reaction zone cover plate 104, and the side wall of the shell of the second reaction zone 130 is provided with an overflow port 105.
The working principle of the invention is as follows: raw water pressurized by a raw water pump is fully mixed with a medicament through a pipeline mixer and then enters a micro vortex coagulation device, enters a water inlet area 110 from a water inlet 111 of the device and then enters a first reaction area 120, a vortex generator 121a is filled in the first reaction area 120, the hydraulic condition of water flow is changed when the water flow passes through the surface of the vortex generator 121a, the flow speed and the flow direction of the water flow are changed, so that the water flow continuously generates micro vortex flow, and the diffusion and collision of particles in the water are effectively promoted by the kinetic energy of a plurality of micro vortex flows; when water flows through the second reaction zone 130, the flocculation tank is provided with a star-shaped fin array 131 taking star-shaped fins as units in the direction perpendicular to the water flow, the water flow is cut, collided and rebounded when flowing through the fins, the speed, the size and the direction are continuously changed, the large vortex is changed into a small vortex, and the small vortex is finally changed into a high-strength high-frequency micro vortex, so that the effective collision rate is further improved, and the flocculation effect is enhanced; the water after the full flocculation reaction flows out from the water outlet through the transition zone 140; the settled flocs are periodically discharged from the sewage discharge outlet 102.
The present invention is functionally divided into five regions, which are a water inlet region 110, a first reaction region 120, a second reaction region 130, and a transition region 140 in this order. The water inlet area 110 mainly enables raw water and medicament to be fully mixed and then smoothly enter a subsequent flocculation reaction area; the first reaction zone 120 mainly utilizes the vortex generator 121a to make the water flow generate micro-vortex flow to strengthen the flocculation reaction; the second reaction zone 130 mainly utilizes the star-shaped fin array 131 to realize the uniform distribution of vortex macroscopic overall control, so that water is subjected to micro-vortex coagulation with higher coagulation efficiency in the second reaction zone 130; the transition zone 140 mainly reduces the flow velocity, and the large flocs are settled to the bottom of the tank due to the action of gravity, so as to ensure that the water after the full flocculation reaction is discharged from the water outlet 141. The whole device has compact structure, less usage of flocculating agent, simple flow, low operation cost and energy consumption.
The above-described embodiments are intended to illustrate the present invention, but not to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit of the present invention and the scope of the claims fall within the scope of the present invention.
Claims (6)
1. A micro-vortex coagulation device comprises a shell, and is characterized in that a water inlet area, a first reaction area, a second reaction area and a transition area are arranged in the shell, the water inlet area is arranged below the first reaction area, and the transition area is arranged below the second reaction area; the device comprises a water inlet area, a first reaction area, a second reaction area, a transition area, a plurality of vortex generation areas, a plurality of vortex generators and a plurality of water supply pipelines, wherein the water inlet area, the first reaction area, the second reaction area and the transition area are provided with partition plates, the upper part of each partition plate is provided with a plurality of overflow channels to communicate the first reaction area and the second reaction area, the first reaction area is internally provided with a plurality of vortex partition plates from bottom to top so as to partition the vortex generation areas in the vertical direction, the vortex partition plates are arranged between the water inlet area and the first reaction area, the vortex partition plates are provided with vortex through holes, and each vortex generation area is internally provided with the vortex generators which are suspended in the vortex generation areas; a star-shaped fin array is arranged in the second reaction zone, and the star-shaped fin array takes star-shaped fins as units;
a water inlet is formed in the side wall of the shell of the water inlet area, and a water outlet is formed in the side wall of the shell of the transition area;
the space between the star-shaped fin array and the water outlet forms a transition area in the shell;
the sizes of the vortex through holes of the upper vortex partition plate on each layer are respectively the same, and the size of the vortex through hole of the lower vortex partition plate is smaller than that of the vortex through hole of the upper vortex partition plate;
the star-shaped wing panels are provided with long wings and short wings which are vertical to each other;
in two adjacent star-shaped wing panels, the long wing is arranged opposite to the short wing of the adjacent star-shaped wing panel;
the vortex generator is a porous hollow ball, the surface aperture ratio of the porous hollow ball is 45-65%, and the outer surface of the porous hollow ball is a rough surface.
2. The micro-vortex coagulation device of claim 1, wherein a first drain outlet is provided at the bottom of the housing of the water inlet zone.
3. The micro-vortex coagulation device of claim 1, wherein a second drain outlet is provided at the bottom of the shell of the transition zone.
4. The micro-vortex coagulation apparatus of claim 1, wherein the second reaction zone has an overflow port at the upper part of the shell.
5. The micro-vortex coagulation apparatus according to claim 1, wherein a first cover plate is provided on the top of the shell of the first reaction zone.
6. The micro-vortex coagulation apparatus of claim 1, wherein a second cover plate is provided on the top of the shell of the second reaction zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910788290.3A CN112429822B (en) | 2019-08-26 | 2019-08-26 | Little swirl coagulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910788290.3A CN112429822B (en) | 2019-08-26 | 2019-08-26 | Little swirl coagulation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112429822A CN112429822A (en) | 2021-03-02 |
| CN112429822B true CN112429822B (en) | 2022-05-17 |
Family
ID=74690654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910788290.3A Active CN112429822B (en) | 2019-08-26 | 2019-08-26 | Little swirl coagulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112429822B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2751023Y (en) * | 2004-09-17 | 2006-01-11 | 徐立群 | Coagulator with star-shaped wing partition board |
| CN201356992Y (en) * | 2009-02-13 | 2009-12-09 | 华东交通大学 | Vortex grid flocculation reactor |
| KR101369979B1 (en) * | 2013-08-27 | 2014-03-06 | 경상북도 경주시 | Spiral-vortex-flow type ultra rapid coagulation apparatus |
| CN104692508A (en) * | 2015-03-26 | 2015-06-10 | 杭州电子科技大学 | Flocculating basin with arc blade vortex generators and flocculating method thereof |
| CN208869368U (en) * | 2018-07-20 | 2019-05-17 | 惠州市第五污水处理有限公司 | A kind of high-efficiency environment friendly sewage treatment sedimentation basin |
-
2019
- 2019-08-26 CN CN201910788290.3A patent/CN112429822B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2751023Y (en) * | 2004-09-17 | 2006-01-11 | 徐立群 | Coagulator with star-shaped wing partition board |
| CN201356992Y (en) * | 2009-02-13 | 2009-12-09 | 华东交通大学 | Vortex grid flocculation reactor |
| KR101369979B1 (en) * | 2013-08-27 | 2014-03-06 | 경상북도 경주시 | Spiral-vortex-flow type ultra rapid coagulation apparatus |
| CN104692508A (en) * | 2015-03-26 | 2015-06-10 | 杭州电子科技大学 | Flocculating basin with arc blade vortex generators and flocculating method thereof |
| CN208869368U (en) * | 2018-07-20 | 2019-05-17 | 惠州市第五污水处理有限公司 | A kind of high-efficiency environment friendly sewage treatment sedimentation basin |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112429822A (en) | 2021-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102464436B (en) | Sewage treatment unit | |
| CN105967294A (en) | Defluorination flocculation reaction method for fluorine-containing wastewater | |
| CN100372783C (en) | Coagulatory settle treatment method for rainy day overflow sewage | |
| CN108328786B (en) | Water treatment device and water treatment method | |
| CN205730485U (en) | A kind of efficient equipment for separating liquid from solid | |
| CN210340446U (en) | Coagulating sedimentation device | |
| CN105621604A (en) | Spiral aeration method and spiral aeration tank | |
| CN204198556U (en) | A kind of dyeing and printing sewage treatment system | |
| CN101530681A (en) | Seawater clarifier turbulence construction and clarifier thereof | |
| CN103395909B (en) | Two-stage coagulation air-flotation separation equipment and method | |
| CN112429822B (en) | Little swirl coagulation system | |
| KR101621453B1 (en) | Combined sewer overflows treatment system | |
| CN205710206U (en) | A kind of integral type sewage processing means | |
| CN216639008U (en) | Self-adaptive variable-circulation granular sludge water treatment device | |
| CN103408134A (en) | Anaerobic sludge bed reactor and method for treating organic waste water by using same | |
| CN208087290U (en) | A kind of water treatment system | |
| CN217025458U (en) | Internal circulation synergistic coagulating sedimentation reactor | |
| JP2000126570A (en) | Instantaneous chemical mixing device utilizing hydraulic vortex flow and its method | |
| CN205933345U (en) | Adsorb industrial waste water preliminary treatment settling basin thoughtlessly congeals based on thickened sludge | |
| CN217188038U (en) | Gravity flow folded plate flocculation and precipitation device | |
| CN207412830U (en) | Sedimentation basin | |
| CN203360111U (en) | Three-stage circulation aerobic reactor | |
| CN201370981Y (en) | Seawater clarification pool with turbulent flow structure | |
| CN214936302U (en) | Novel energy-saving raw water treatment device | |
| CN216191584U (en) | Oil gas field wastewater pretreatment integrated device |
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 |