CN212523126U - A high-efficient integrated device that deposits for groundwater is taken out and is handled - Google Patents
A high-efficient integrated device that deposits for groundwater is taken out and is handled Download PDFInfo
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- CN212523126U CN212523126U CN202020871590.6U CN202020871590U CN212523126U CN 212523126 U CN212523126 U CN 212523126U CN 202020871590 U CN202020871590 U CN 202020871590U CN 212523126 U CN212523126 U CN 212523126U
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- 239000003673 groundwater Substances 0.000 title claims abstract description 25
- 239000010802 sludge Substances 0.000 claims abstract description 122
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 107
- 238000005345 coagulation Methods 0.000 claims abstract description 60
- 230000015271 coagulation Effects 0.000 claims abstract description 60
- 238000005189 flocculation Methods 0.000 claims abstract description 45
- 230000016615 flocculation Effects 0.000 claims abstract description 45
- 238000004062 sedimentation Methods 0.000 claims abstract description 36
- 230000001687 destabilization Effects 0.000 claims abstract description 25
- 238000009833 condensation Methods 0.000 claims abstract description 11
- 230000005494 condensation Effects 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims description 34
- 238000001556 precipitation Methods 0.000 claims description 20
- 239000000701 coagulant Substances 0.000 claims description 14
- 238000000605 extraction Methods 0.000 claims description 11
- 238000010992 reflux Methods 0.000 claims description 11
- 229910001385 heavy metal Inorganic materials 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000012716 precipitator Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 3
- 230000001112 coagulating effect Effects 0.000 abstract description 15
- 230000008719 thickening Effects 0.000 abstract description 12
- 239000013049 sediment Substances 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000000638 solvent extraction Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 20
- 230000000694 effects Effects 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 14
- 238000003756 stirring Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- 239000003814 drug Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 6
- 230000002411 adverse Effects 0.000 description 4
- 238000005354 coacervation Methods 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000003895 groundwater pollution Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
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- 239000002352 surface water Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model provides an efficient sediment integrated device for groundwater is taken out and is handled, the power distribution box comprises a box body, the inside of box has set gradually the coagulation district, slow speed flocculation district, the settling zone, clear water district and sediment sludge thickening district, the vertical plate that sets up in the coagulation district is the destabilization condensation zone that sets gradually with the internal partitioning in coagulation district, help and congeal district and mud backward flow mixed zone, the pipeline intercommunication mud backward flow mixed zone that the destabilization condensation zone passes through the top, mud backward flow mixed zone helps and congeals the district through the opening intercommunication, help and congeal the district and connect slow speed flocculation district through first overflow plate, slow speed flocculation district passes through second overflow plate and connects the settling zone, the settling zone passes through third overflow plate and connects the clear water district. The utility model discloses a multi-functional subregion, many agitators choose for use, not only can provide the required hydraulic conditions of different stages of coagulating, and the mud backward flow has also improved the efficiency of low turbid groundwater sedimentation treatment greatly, has strengthened the anti impact load capacity of equipment, has promoted the holistic technology treatment effeciency of integrated device.
Description
Technical Field
The utility model relates to a high-efficient integrated device that deposits for groundwater is taken out and is handled belongs to environmental protection equipment technical field.
Background
The application of the traditional coagulating sedimentation treatment technology in water treatment has been in history for hundreds of years, the main purpose is to remove suspended particles in water, and the main principle is a water treatment technology which coagulates colloid and fine suspended matters in wastewater into floccules under the action of a coagulant and then separates and removes the floccules through sedimentation.
The coagulating sedimentation method is a conventional treatment method in water supply and drainage treatment, and main factors influencing the coagulating effect comprise water temperature, the pH value of water, alkalinity, adding mode/sequence, hydraulic conditions and the like.
Along with the rapid development of industrial and agricultural industries, China also brings a heavy cost of environmental pollution. Groundwater pollution has become a common problem, and in recent years, remediation of polluted groundwater has also been started gradually.
One of the methods for treating polluted groundwater commonly used in countries in the world at present is a pumping treatment method. The extraction treatment technology is a method for extracting polluted underground water to the surface and then treating the polluted underground water by using surface sewage treatment technology. Due to the requirements of the adopted treatment process, the coagulating sedimentation also becomes a common method for treating the polluted underground water.
The common method of the similar coagulating sedimentation integrated device in China is coagulation, coagulation aid and inclined tube sedimentation. However, when the coagulation agent is used for underground water treatment, the concentration of turbidity particles in underground water is relatively low, the hydration effect is enhanced, the collision probability among the particles is greatly reduced, alumen ustum is not easy to form, the coagulation effect is poor, and the quality of precipitated water is directly influenced. Even when the method is used for removing heavy metals in groundwater by a precipitation method, the expected treatment effect cannot be achieved because the concentration of the heavy metals to be removed by the groundwater is low and the quality of formed flocs is poor.
For example, the chinese patent CN107915346A discloses a central mixing-concentric circular sector corridor grid flocculation-sector inclined tube sedimentation integrated device, which comprises a central mixing area, a concentric circular sector corridor grid flocculation area, a sector corridor inclined tube sedimentation area, a dosing system and a bottom sludge discharge collection tank; the concentric circle fan-shaped gallery grid flocculation area consists of an annular primary flocculation area and a fan-shaped secondary flocculation area. It only thoughtlessly congeals through central mixed district, is difficult to solve above-mentioned not good technical problem of effect of congealing.
Still like the groundwater and surface water deposit, purify and recovery system that chinese patent CN209178129U disclosed, including escape canal, tertiary sedimentation tank, first water conveyor, second grade settling tank, second water conveyor, filtration purification equipment, water storage tank, outlet pipe and pressure device, it then does not set up the module of coagulating completely, only carries out water treatment through deposiing and filtration equipment, has greatly increased treatment cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a be used for groundwater to take out high-efficient sediment integrated device of handling to solve the not good technical problem of effect of coagulating that proposes in the above-mentioned background at least.
In order to achieve the above purpose, the present invention is realized by the following technical solution: an efficient sedimentation integrated device for pumping underground water comprises a box body, wherein a coagulation area, a slow flocculation area, a sedimentation area, a clear water area and a sedimentation sludge concentration area are sequentially arranged in the box body along the left-right direction, two vertical plates extending along the left-right direction are arranged in the coagulation area, the vertical plates divide the interior of the coagulation area into a destabilization coagulation area, a coagulation assisting area and a sludge backflow mixing area which are sequentially arranged, the destabilization coagulation area is communicated with the sludge backflow mixing area through a pipeline at the top, and first stirrers are respectively arranged in the destabilization coagulation area, the coagulation assisting area and the sludge backflow mixing area,
the sludge backflow mixing area is communicated with the coagulation aiding area through an opening, the coagulation aiding area is connected with the slow flocculation area through a first overflow plate, a first baffle extending downwards along the vertical direction is arranged at the position, close to the first overflow plate, of the top of the slow flocculation area, the slow flocculation area is connected with the sedimentation area through a second overflow plate, a second stirrer is arranged inside the slow flocculation area,
the position department that the settling zone top is close to the second overflow plate is provided with along vertical direction downwardly extending's second baffle, and the settling zone passes through the third overflow plate and connects the clear water district, and settling zone inside is provided with the counterflow pipe chute and packs, and the bottom of settling zone is provided with the mud collection fill.
The utility model discloses include on the functional partitioning: the device comprises a destabilization condensation zone, a sludge backflow mixing zone, a coagulation aiding zone, a slow flocculation zone, a sedimentation zone, a clear water zone and a sedimentation sludge concentration zone, wherein the treatment process comprises the following steps: raw water sequentially passes through a destabilization and coagulation zone, a sludge backflow and mixing zone, a coagulation assisting zone, a slow flocculation zone, a sedimentation zone and a clear water zone.
Specifically, the first functional region through which raw water passes is a destabilization condensation region. The chemical agents used for destabilization comprise aluminum salt, ferric salt and the like, and the adding amount is determined by small tests according to water quality indexes such as pH value, suspended solid content, organic matter concentration, water temperature, alkalinity and the like of water to be treated. When the device is used for underground water heavy metal precipitation, the region is used as a precipitator for adding. The zone is provided with at least one first stirrer with stirring energy of 100W/m3Or higher to meet the required velocity gradient to achieve rapid and uniform mixing of the medicament.
The velocity gradient G value is directly related to the stirring energy in a certain volume and the dynamic viscosity of a medium, different G values are required to be designed according to different stages of a coagulation process, generally speaking, the G value required by mixing is large and usually reaches hundreds (unit: 1/second), and the G value in a flocculation stage only needs tens of or more. The utility model discloses strengthen the coagulation, promptly, the design will mix and flocculation reaction functional partitioning, respectively its function as far as possible. For a certain volume of medium, a certain stirring energy is ensured to correspond to a certain velocity gradient.
The water flow then enters a sludge recirculation mixing zone. For the common low-turbidity underground water treatment, the inlet water and the return sludge are mixed in the zone, so that relatively small flocs formed in the previous functional zone can form more and larger flocs, the subsequent precipitation effect is enhanced, and the using amount of the medicament is reduced. In addition, preferably, the sludge backflow mixing area is provided with a pH adjusting and adding port so as to cope with the adverse effect of adding the coagulant on the pH value of the treated water or the pH condition required for adjusting heavy metal precipitation. The zone is also provided with at least one first stirrer, the stirring energy is 100W/m3Or higher to meet the desired velocity gradient.
Then the water flow enters into a coagulation aiding area, and a high molecular coagulation aiding agent such as PAM is added into the area. At least one first stirrer is also provided, the stirring energy is 100W/m3Or higher to meet the desired velocity gradient.
Optionally, the first stirrer is a vertical stirrer, and a vertical stirrer is arranged in the destabilization condensation area, the coagulation aiding area and the sludge backflow mixing area.
And the water flow enters a flocculation area, the flocculation area is provided with at least one second stirrer, the stirring is carried out at a low speed, and the frequency conversion control is adopted to ensure the size increase and compactness increase of the flocs generated at the front end. The area is relative to the front three areas, has larger volume, long reaction time and small water flow speed, is convenient for the growth and curing of flocs, and provides favorable conditions for the subsequent precipitation main unit. When water flow enters from the coagulation aiding area, necessary water distribution design is carried out, namely, the coagulation aiding area is positioned between the destabilization condensation area and the sludge backflow mixing area, and the water flow flows out from the middle positions of three side-by-side reaction chambers, so that the water flow is relatively uniformly distributed in the width direction of the whole device to enter the flocculation reaction area, the stable transition of the water flow is ensured, and the adverse effect on flocs is avoided.
The flocculation reaction usually needs a certain reaction time, the volume is relatively large, the integrated device is convenient to transport, the height is generally considered to be 3m, in the arrangement, the flocculation zone is a narrow and long area, the vertical stirrer is not easy to arrange, the number is larger, and therefore the second stirrer is preferably a horizontal shaft stirrer, the equipment number is reduced, and the equipment volume is reduced.
The water then passes through the distribution baffle into the settling zone. The sedimentation zone adopts a counter-flow inclined tube filler, and in the process that water flows upwards, flocs are settled on the inclined tube, slide downwards along the inclined direction of the inclined tube and finally settle to a bottom sludge collecting hopper. The effluent water precipitated by the inclined tube overflows into the clear water area through the third overflow plate.
When the device is used, the water inlet self-suction type centrifugal pump is started to pump out polluted underground water, the treatment flow is adjusted to the design flow through the pump rear adjusting valve, the respective stirrer and the dosing pump are sequentially started according to the fullness degree of each functional partition, the dosage of the medicament is correspondingly adjusted according to the specific water quality, and the cross shaft stirrer is adjusted through frequency conversion, so that the device can treat the best water. Calculating the sludge storage state of the sludge hopper according to the water quality, starting the sludge reflux pump and the excess sludge pump at proper time, and then starting the sludge dewatering machine to perform sludge dewatering treatment according to the sludge storage condition of the concentration area.
Preferably, the third overflow plate is an adjustable triangular weir plate.
Furthermore, the sludge discharge port of the sludge collecting hopper is connected with a sludge backflow mixing area through a first pipeline, the sludge discharge port of the sludge collecting hopper is connected with a precipitated sludge concentration area through a second pipeline, a sludge backflow pump is arranged on the first pipeline, and a precipitated residual sludge pump is arranged on the second pipeline. The sludge in the sludge collecting hopper is respectively conveyed to the sludge reflux mixing area and the precipitated sludge concentration area through the sludge reflux pump and the precipitated excess sludge pump, and the specific sludge discharge time is determined according to the corresponding water quality condition and the operation condition.
Furthermore, a thickening area sludge inlet pipe and a thickening area overflow trough are arranged at the top of the sedimentation sludge thickening area, a water outlet port is arranged on the side wall of the thickening area overflow trough, and a thickening sludge discharge port is arranged at the bottom of the sludge thickening area.
Optionally, the main body structure of the box body is made of carbon steel anti-corrosion materials.
Optionally, the container further comprises a matching device, the matching device is arranged in another independent container, the container is provided with interfaces matched with the pipeline interfaces on the container body, and the pipeline interfaces are connected with the corresponding interfaces on the container one by one.
Optionally, the corollary equipment still includes charge device, and is further optional, charge device include that coagulant/heavy metal precipitant throw with unit, pH adjust with unit, coagulant aid throw with unit, mud backward flow unit and mud dehydration medicament throw with one or more in the unit.
Further optionally, corollary equipment still includes intake pump, mud backwash pump, excess sludge pump, sludge dewatering and advances dredge pump, sludge dewaterer, electric appearance system etc. charge device, intake pump, mud backwash pump, excess sludge pump, sludge dewatering advance dredge pump, sludge dewaterer, electric appearance system can integrate in the container, set up on the container equally with each electrical equipment matched with interface to the quick installation and the shipment of a whole set of device are realized.
Preferably, the sediment sludge concentration area is located a corner in clear water district, and sediment sludge concentration area and clear water district mutual independence do not communicate to lifting means is integrative, reduces the equipment volume.
The utility model discloses in view of the consideration of convenient transportation, the settling zone highly can not be done very big, and the solid rate of containing of sediment mud is relatively low on the low side, for the lectotype and the reduction running cost of follow-up dewatering equipment of being convenient for, the utility model discloses open a corner in the clear water district, be used as the concentration of sediment mud. The inside in concentrated district is provided with the central honeycomb duct that extends along the vertical direction, adopts vertical flow formula central honeycomb duct design, adopts lower solid flux to guarantee the concentration effect.
The utility model has the advantages that:
the utility model discloses a through to congealing, the concentrated optimization of mud, greatly improved the short slab when similar integrated device handles groundwater. Through the measures of multifunctional partition and multiple stirrers, the hydraulic conditions required by different stages of coagulation can be provided, the efficiency of low-turbidity underground water sedimentation treatment is greatly improved by adopting sludge backflow, the impact load resistance of equipment is enhanced, and the overall process treatment efficiency of the integrated device is improved.
The utility model discloses a measure that sedimentation mud backward flow and regulation speed gradient of coagulating improve the water conservancy condition realizes the intensification of coagulation process, provides the best condition for subsequent precipitation separation unit.
The utility model discloses an increase function subregion of coagulating to adjust mixer rotational speed and power in the different subregion, realize coagulating the required speed gradient in different stages, strengthened the effect of coagulating.
The utility model discloses rivers optimize present conventional way when different function subareas pass through, have adopted the water distribution design to satisfy required hydraulic condition.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic top view of an efficient sedimentation integrated apparatus for groundwater extraction treatment according to the present invention;
fig. 2 is a schematic sectional view of the efficient sedimentation integrated device for groundwater extraction treatment of the present invention along the section a-a in fig. 1.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a high-efficient integrated device that deposits for groundwater is taken out and is handled, includes box 1, and the inside of box 1 has set gradually coagulation zone, slow speed flocculation district 8, settling zone 10, clear water district 13 and sedimentation sludge concentration district 14 along the direction from left to right.
The coagulation area in be provided with two vertical plates that extend along the left and right direction, vertical plate separates the interior of coagulation area for the destabilization coacervation district 3, the coagulation-aiding district 5 and the mud backward flow mixed area 6 that set gradually, and destabilization coacervation district 3 communicates mud backward flow mixed area 6 through the pipeline at top, all is provided with first agitator 4 in destabilization coacervation district 3, coagulation-aiding district 5 and the mud backward flow mixed area 6, and the top of destabilization coacervation district 3 is provided with water inlet 2.
The sludge backflow mixing area 6 is communicated with the coagulation aiding area 5 through an opening, the coagulation aiding area 5 is connected with the slow flocculation area 8 through the first overflow plate 23, a first baffle 24 extending downwards along the vertical direction is arranged at the position, close to the first overflow plate 23, of the top of the slow flocculation area 8, the slow flocculation area 8 is connected with the sedimentation area 10 through the second overflow plate 25, and the second stirrer 9 is arranged inside the slow flocculation area 8.
The top of the settling zone 10 is provided with a second baffle 26 extending downwards along the vertical direction at a position close to the second overflow plate 25, the settling zone 10 is connected with the clear water zone 13 through a third overflow plate 27, the inside of the settling zone 10 is provided with a counter-flow type inclined tube filler 22, and the bottom of the settling zone 10 is provided with a sludge collecting hopper 11.
The number of the mud collecting hoppers 11 arranged at the bottom of the settling zone 10 can be one, two or more, and the bottom of each mud collecting hopper 11 is provided with a mud discharging port 12. The top of the clean water area 13 is provided with a water outlet 15.
Further, the sludge discharge port 12 of the sludge collecting hopper 11 is connected with the sludge backflow mixing area 6 through a first pipeline, the sludge discharge port 12 of the sludge collecting hopper 11 is connected with the precipitated sludge concentration area 14 through a second pipeline, a sludge backflow pump is arranged on the first pipeline, and a precipitated residual sludge pump is arranged on the second pipeline. The sludge in the sludge collecting hopper 11 is respectively conveyed to the sludge reflux mixing area 6 and the precipitated sludge concentration area 14 through a sludge reflux pump and a precipitated excess sludge pump, and the specific sludge discharge time is determined according to the corresponding water quality condition and the operation condition.
Furthermore, a thickening region mud inlet pipe 17 and a thickening region overflow groove 16 are arranged at the top of the precipitated sludge thickening region 14, a water outlet port 18 is arranged on the side wall of the thickening region overflow groove 16, and a thickened sludge discharge port 19 is arranged at the bottom of the sludge thickening region.
The utility model discloses include on the functional partitioning: a destabilization condensation zone 3, a sludge reflux mixing zone 6, a coagulation aiding zone 5, a slow flocculation zone 8, a sedimentation zone 10, a clear water zone 13 and a sedimentation sludge concentration zone 14, wherein the treatment process comprises the following steps: raw water passes through a destabilization and coagulation zone 3, a sludge backflow mixing zone 6, a coagulation aiding zone 5, a slow flocculation zone 8, a sedimentation zone 10 and a clear water zone 13 in sequence.
Preferably, the third overflow plate 27 is an adjustable triangular weir plate.
Optionally, the main structure of the box body 1 is made of carbon steel anti-corrosion material.
Optionally, the container further comprises a matching device, the matching device is arranged in another independent container, the container is provided with interfaces matched with the pipeline interfaces on the container body 1, and the pipeline interfaces are connected with the reserved interfaces of the container one by one.
Optionally, the supporting equipment comprises a dosing device, and is further optional, wherein the dosing device comprises one or more of a coagulant/heavy metal precipitator adding unit, a pH adjusting adding unit, a coagulant aid adding unit, a sludge refluxing unit and a sludge dewatering agent adding unit.
Further optionally, corollary equipment still includes intake pump, mud backwash pump, excess sludge pump, sludge dewatering and advances dredge pump, sludge dewaterer, electric appearance system etc. charge device, intake pump, mud backwash pump, excess sludge pump, sludge dewatering advance dredge pump, sludge dewaterer, electric appearance system etc. can integrate in the container, set up on the container equally with each electrical equipment matched with interface to realize the quick installation and the shipment of a whole set of device.
Preferably, the precipitated sludge concentration zone 14 is located at one corner of the clear water zone 13, and the precipitated sludge concentration zone 14 and the clear water zone 13 are independent and not communicated with each other, so as to improve the integrity of the device and reduce the volume of the equipment.
The utility model discloses in view of the consideration of convenient transportation, settling zone 10 highly can not be done very big, settling sludge contain solid rate some on the lower side relatively, for the lectotype and the reduction running cost of follow-up dewatering equipment of being convenient for, the utility model discloses open a corner in clear water district 13, be used as the concentration of settling sludge. The inside of concentration district is provided with along the central honeycomb duct 21 of vertical direction extension, adopts vertical flow formula central honeycomb duct 21 design, adopts lower solid flux to guarantee the concentration effect.
The velocity gradient is an important control parameter for the coagulation reaction. After the coagulant is added into water, the hydrolysis form of the coagulant can be changed rapidly, and the coagulant is usually required to be rapidly mixed to rapidly and uniformly disperse the added coagulant into the water to be treated, so that the coagulant can be uniformly hydrolyzed and polymerized in the water and destabilize colloidal particles, and the process requires rapid and violent hydraulic or mechanical stirring action and is completed in a short time. After the particles are destabilized, the particles enter a flocculation reaction stage, and the destabilized colloidal particles are gradually increased into floccules with good sedimentation performance in a mode of heterodromous flocculation and homodromous flocculation, so that the stirring intensity and the water flow speed in the flocculation reaction stage are gradually reduced along with the increase of the floccules, and the aggregated floccules are prevented from being broken to influence the sedimentation effect. Meanwhile, the flocculation reaction is a slow process in which the floccule gradually grows, and a certain flocculation time needs to be ensured.
At present, in the coagulation and coagulation assisting links similar to a coagulation and precipitation device, in order to realize uniform mixing of medicaments, rapid mixing is adopted, adjustment on a speed gradient is not realized, and the optimal coagulation effect is difficult to achieve. The utility model discloses then through increasing the function subregion of coagulating to adjust mixer rotational speed and power in the different subregion, realize coagulating the required speed gradient in different stages, strengthened the effect of coagulating.
The utility model discloses rivers optimize present conventional way when different function subareas pass through, and adopted the water distribution design to satisfy required hydraulic condition.
The working principle is as follows: the first functional area through which raw water passes is a destabilization condensation area 3. The chemical agents used for destabilization comprise aluminum salt, ferric salt and the like, and the adding amount is determined by small tests according to water quality indexes such as pH value, suspended solid content, organic matter concentration, water temperature, alkalinity and the like of water to be treated. When the device is used for underground water heavy metal precipitation, the region is used as a precipitator for adding. The zone is provided with at least one first stirrer 4 with stirring energy of 100W/m3Or higher to meet the required velocity gradient to achieve rapid and uniform mixing of the medicament.
The velocity gradient G value is directly related to the stirring energy in a certain volume and the dynamic viscosity of a medium, different G values are required to be designed according to different stages of a coagulation process, generally speaking, the G value required by mixing is large and usually reaches hundreds (unit: 1/second), and the G value in a flocculation stage only needs tens of or more. The utility model discloses strengthen the coagulation, promptly, the design will mix and flocculation reaction functional partitioning, respectively its function as far as possible. For a certain volume of medium, a certain stirring energy is ensured to correspond to a certain velocity gradient.
The water flow then enters the sludge recirculation mixing zone 6. For the common low-turbidity underground water treatment, the inlet water and the return sludge are mixed in the zone, so that relatively small flocs formed in the previous functional zone can form more and larger flocs, the subsequent precipitation effect is enhanced, and the using amount of the medicament is reduced. In addition, preferably, the sludge backflow mixing area 6 is provided with a pH adjusting and adding port 7 so as to cope with the adverse effect of adding the coagulant on the pH value of the treated water or the pH condition required for adjusting heavy metal precipitation. The zone is also provided with at least one first stirrer 4 with stirring energy of 100W/m3Or higher to meet the desired velocity gradient.
Then the water flow enters a coagulation aiding area 5, and a high molecular coagulation aiding agent such as PAM is added into the area. At least one first stirrer 4 with stirring energy of 100W/m is also provided3Or higher to meet the desired velocity gradient.
Optionally, the first stirrer 4 is a vertical stirrer, and a vertical stirrer is arranged in the destabilization condensation zone 3, the coagulation aiding zone 5 and the sludge reflux mixing zone 6.
The water flow enters a slow flocculation area 8, the area is provided with at least one second stirrer 9, the water flow is stirred at a slow speed, and the frequency conversion control is adopted, so that the size of the flocs generated at the front end is increased, and the compactness is increased. The area is relative to the front three areas, has larger volume, long reaction time and small water flow speed, is convenient for the growth and curing of flocs, and provides favorable conditions for the subsequent precipitation main unit. When water flow enters from the coagulation aiding area 5, necessary water distribution design is carried out, namely, the coagulation aiding area 5 is positioned between the destabilization condensation area 3 and the sludge backflow mixing area 6, and the water flow flows out from the middle positions of three side-by-side reaction chambers, so that the water flow is relatively uniformly distributed in the width direction of the whole device to enter the flocculation reaction area, the stable transition of the water flow is ensured, and the adverse effect on flocs is avoided.
The flocculation reaction usually needs a certain reaction time, the volume is relatively large, the height is generally considered to be 3m in consideration of convenient transportation, in the arrangement, the slow flocculation zone 8 is a long and narrow area, the vertical stirrer is not easy to arrange, and the number is larger, so that the second stirrer 9 is preferably a horizontal shaft stirrer, and the equipment number and the equipment volume are reduced.
The water then passes through the distribution baffle into the settling zone 10. The sedimentation zone 10 adopts a counter-flow inclined tube filler 22, and in the process that water flows upwards, flocs are settled on the inclined tube, slide downwards along the inclined direction of the inclined tube and finally settle to the bottom sludge collecting hopper 11. The effluent settled by the inclined tube overflows through the third overflow plate 27 into the clean water zone 13.
When the device is used, the water inlet self-suction type centrifugal pump is started to pump out polluted underground water, the treatment flow is adjusted to the design flow through the pump rear adjusting valve, the respective stirrer and the dosing pump are sequentially started according to the fullness degree of each functional partition, the dosage of the medicament is correspondingly adjusted according to the specific water quality, and the cross shaft stirrer is adjusted through frequency conversion, so that the device can treat the best water. Calculating the sludge storage state of the sludge collecting hopper 11 according to the water quality, starting a sludge reflux pump and an excess sludge pump at proper time, and then starting a sludge dewatering machine to dewater sludge according to the sludge storage condition of the concentration area.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and are not to be construed as limiting the present invention, which is for purposes of illustration only and is not intended to be in the sole embodiment.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may include only a single embodiment, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be appropriately combined to form other embodiments as will be apparent to those skilled in the art.
Claims (10)
1. The utility model provides a high-efficient integrated device that deposits for groundwater is pumped out and is handled which characterized in that: comprises a box body, wherein a coagulation area, a slow flocculation area, a sedimentation area, a clear water area and a precipitated sludge concentration area are sequentially arranged in the box body along the left-right direction, two vertical plates extending along the left-right direction are arranged in the coagulation area, the vertical plates divide the interior of the coagulation area into a destabilization coagulation area, a coagulation assisting area and a sludge backflow mixing area which are sequentially arranged, the destabilization coagulation area is communicated with the sludge backflow mixing area through a pipeline at the top, and first stirrers are arranged in the destabilization coagulation area, the coagulation assisting area and the sludge backflow mixing area,
the sludge backflow mixing area is communicated with the coagulation aiding area through an opening, the coagulation aiding area is connected with the slow flocculation area through a first overflow plate, a first baffle extending downwards along the vertical direction is arranged at the position, close to the first overflow plate, of the top of the slow flocculation area, the slow flocculation area is connected with the sedimentation area through a second overflow plate, a second stirrer is arranged inside the slow flocculation area,
the position department that the settling zone top is close to the second overflow plate is provided with along vertical direction downwardly extending's second baffle, and the settling zone passes through the third overflow plate and connects the clear water district, and settling zone inside is provided with the counterflow pipe chute and packs, and the bottom of settling zone is provided with the mud collection fill.
2. An efficient precipitation integrated unit for groundwater extraction treatment according to claim 1, wherein: the first stirrer is a vertical stirrer, and the destabilization condensation area, the coagulation aiding area and the sludge backflow mixing area are all internally provided with a vertical stirrer.
3. An efficient precipitation integrated unit for groundwater extraction treatment according to claim 1, wherein: the second stirrer is a horizontal shaft stirrer.
4. An efficient precipitation integrated unit for groundwater extraction treatment according to claim 1, wherein: the sludge discharge port of the sludge collecting bucket is connected with a sludge backflow mixing area through a first pipeline, the sludge discharge port of the sludge collecting bucket is connected with a precipitated sludge concentration area through a second pipeline, a sludge reflux pump is arranged on the first pipeline, and a precipitated residual sludge pump is arranged on the second pipeline.
5. An efficient precipitation integrated unit for groundwater extraction treatment according to claim 1, wherein: the top of the sedimentation sludge concentration area is provided with a concentration area sludge inlet pipe and a concentration area overflow groove, the side wall of the concentration area overflow groove is provided with a water outlet interface, and the bottom of the sludge concentration area is provided with a concentrated sludge discharge port.
6. An efficient precipitation integrated unit for groundwater pumping treatment according to any one of claims 1 to 5, wherein: the container body is provided with a plurality of pipeline interfaces, the container body is provided with a plurality of independent containers, the container body is provided with a plurality of matched interfaces, and the pipeline interfaces are connected with the corresponding interfaces on the container one by one.
7. An efficient precipitation integrated unit for groundwater extraction treatment according to claim 6, wherein: the corollary equipment comprises a dosing device.
8. An efficient precipitation integrated unit for groundwater extraction treatment according to claim 7, wherein: the dosing device comprises one or more of a coagulant and/or heavy metal precipitator adding unit, a pH adjusting adding unit, a coagulant aid adding unit, a sludge refluxing unit and a sludge dewatering agent adding unit.
9. An efficient precipitation integrated unit for groundwater extraction treatment according to claim 1, wherein: the sedimentation sludge concentration area is positioned at one corner of the clear water area, and the sedimentation sludge concentration area and the clear water area are mutually independent and are not communicated with each other.
10. An efficient precipitation integrated unit for groundwater extraction treatment according to claim 1, wherein: the third overflow plate is an adjustable triangular weir plate.
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| CN202020871590.6U CN212523126U (en) | 2020-05-21 | 2020-05-21 | A high-efficient integrated device that deposits for groundwater is taken out and is handled |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116462292A (en) * | 2023-05-10 | 2023-07-21 | 上海宏微环境科技有限公司 | A three-effect composite water purifier of coagulation reaction, inclined plate sedimentation and sludge concentration |
| CN117222777A (en) * | 2021-04-23 | 2023-12-12 | 首要金属科技奥地利有限责任公司 | Online silicon separation on pickling equipment |
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2020
- 2020-05-21 CN CN202020871590.6U patent/CN212523126U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117222777A (en) * | 2021-04-23 | 2023-12-12 | 首要金属科技奥地利有限责任公司 | Online silicon separation on pickling equipment |
| CN116462292A (en) * | 2023-05-10 | 2023-07-21 | 上海宏微环境科技有限公司 | A three-effect composite water purifier of coagulation reaction, inclined plate sedimentation and sludge concentration |
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