CN214087854U - Functional multi-effect clarification system - Google Patents
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- CN214087854U CN214087854U CN202022333673.2U CN202022333673U CN214087854U CN 214087854 U CN214087854 U CN 214087854U CN 202022333673 U CN202022333673 U CN 202022333673U CN 214087854 U CN214087854 U CN 214087854U
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Abstract
The utility model provides a many effect clarification system of functional type includes: the system comprises a modularized trash blocking subsystem, a functional reaction subsystem, a coagulation reaction subsystem, a flocculation reaction subsystem and a multi-effect clarification subsystem which are sequentially arranged along the water flow direction; the trash holding subsystem comprises a trash holding tank; the functional reaction subsystem comprises a functional reaction tank; the coagulation reaction subsystem comprises a coagulation reaction tank; the flocculation reaction subsystem comprises a flocculation reaction tank; the multi-effect clarification subsystem comprises a multi-effect clarification tank, the multi-effect clarification tank is also connected with the flocculation reaction tank through a medium recovery subsystem, and the medium recovery subsystem is used for recovering flocculation carriers; the medium recovery subsystem is also connected with the functional reaction tank and the sludge storage tank respectively through a sludge reflux pump, and the sludge storage tank is connected with the sludge dehydration subsystem. The utility model is provided with a functional reaction tank which utilizes functional adsorption materials to pertinently treat dissolubility and micromolecule colloid pollutants; and the medium recovery subsystem is arranged to recover the flocculation carrier, so that the economic benefit is improved.
Description
Technical Field
The utility model relates to a water pollution treatment technical field especially relates to a functional type multiple-effect clarification system.
Background
In the prior art, sewage is lifted by a pump and then directly enters a coagulation reaction tank to carry out coagulation reaction with coagulants such as PAC (polyaluminium chloride), so that a colloid is destabilized, TP (total phosphorus) is removed, the sewage is combined with a carrier through flocculation reaction to form larger flocs, mud and water are separated in a sedimentation tank, supernatant is discharged as effluent or enters the next unit, and sludge flows back to carry out medium recovery.
With the improvement of the overall assessment mode and standard of the environment, the existing conventional water treatment technology is difficult to meet the requirements of purification level and economy at the same time, can not effectively remove the pollutants such as fluorine, organic matters, hard magnesium silicon, total nitrogen and the like, and has weak treatment capacity on the pollutants such as dissolubility and small molecular colloids. And the treatment is carried out by means of functional adsorbing materials and activated sludge, so that the method is difficult to adapt to occasions with high requirements on the quality of the effluent.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a functional type multiple-effect clarification system to realize the high-efficient processing to the pollutant of dissolubility and small molecule colloid class, realize the recycle to the flocculation carrier simultaneously.
The utility model adopts the technical proposal that: providing a functional, multi-effect clarification system, the system comprising: the system comprises a modularized trash blocking subsystem, a functional reaction subsystem, a coagulation reaction subsystem, a flocculation reaction subsystem, a multi-effect clarification subsystem and a dosing subsystem which are arranged along the water flow direction;
the trash holding subsystem comprises a trash holding tank;
the functional reaction subsystem comprises a functional reaction tank for removing characteristic pollutants by using one or more functional materials, and a first stirrer and a first guide cylinder are arranged in the functional reaction tank;
the coagulation reaction subsystem comprises a coagulation reaction tank;
the flocculation reaction subsystem comprises a flocculation reaction tank, and a second stirrer, a second guide cylinder, a guide plate and a flocculating agent feeding ring are arranged in the flocculation reaction tank;
the multi-effect clarification subsystem comprises a multi-effect clarification tank, the multi-effect clarification tank is also connected with the flocculation reaction tank through a medium recovery subsystem, and a cyclone separator is arranged in the medium recovery subsystem and used for recovering flocculation carriers;
the medium recovery subsystem is also respectively connected with the functional reaction tank and the sludge storage tank through a sludge reflux pump, and the sludge storage tank is connected with the sludge dehydration subsystem;
the dosing subsystem comprises a functional adsorption material preparation dosing device connected with the functional reaction tank, a coagulant preparation dosing device connected with the coagulation reaction tank, and a flocculant preparation dosing device connected with the flocculation reaction tank.
In some embodiments, a magnetic separator is also disposed within the media recovery subsystem.
In some embodiments, the sludge recirculation pump is a slurry pump, and the impeller of the slurry pump is a rubber impeller.
In some embodiments, the sludge dewatering subsystem comprises a stack screw dewaterer.
In some embodiments, a grating is arranged in the trash holding tank to remove large-particle pollutants and garbage.
In some embodiments, a sludge hopper is arranged at the bottom in the multi-effect clarification tank, a mud scraper with grid bars is arranged on the sludge hopper, and the bottom of the sludge hopper is connected with the medium recovery subsystem.
In some embodiments, the upper part of the multi-effect clarification tank is provided with an inclined plate sedimentation zone consisting of a plurality of groups of inclined plates.
In some embodiments, the trash holding tank, the functional reaction tank, the coagulation reaction tank, the flocculation reaction tank and the multi-effect clarification tank are connected through overflow weirs.
In some embodiments, a third stirrer is disposed in the coagulation reaction tank.
The beneficial effects of the utility model include at least:
the functional multi-effect clarification system is characterized in that the functional reaction tank is arranged to treat soluble and small molecular colloid pollutants by using a functional adsorption material; the medium recovery subsystem is arranged to recover the flocculation carrier, so that the economic benefit is improved; through setting up the sludge dewatering subsystem, carry out concentrated processing and recycle to mud, promote the efficiency of handling.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the details set forth above, and that these and other objects that can be achieved with the present invention will be more clearly understood from the following detailed description.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention. For convenience in illustrating and describing some portions of the present invention, corresponding parts of the drawings may be exaggerated, i.e., may be larger, relative to other components in an exemplary device actually manufactured according to the present invention. In the drawings:
fig. 1 is a block diagram of a functional multi-effect clarification system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a functional multi-effect clarification system according to an embodiment of the present invention.
Description of reference numerals:
110: a trash holding subsystem; 111: a trash holding tank; 120: a functional reaction subsystem;
121: a functional reaction tank; 122: a first mixer; 123: a first draft tube;
130: a coagulation reaction subsystem; 131: a coagulation reaction tank; 132: a third stirrer;
140: a flocculation reaction subsystem; 141: a flocculation reaction tank; 142: a second mixer;
143: a second draft tube; 150: a multi-effect clarification sub-system; 151: a multi-effect clarification tank;
152: a sludge hopper; 153: a mud scraper; 154: a sloping plate;
160: a media recovery subsystem; 170: a sludge storage tank; 180: and a sludge dewatering subsystem.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
It should also be noted that, in order to avoid obscuring the invention with unnecessary details, only the structures and/or process steps that are closely related to the solution according to the invention are shown in the drawings, while other details that are not relevant to the invention are omitted.
It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.
It is also noted herein that the term "coupled," if not specifically stated, may refer herein to not only a direct connection, but also an indirect connection in which an intermediate is present.
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same or similar parts, or the same or similar steps.
In the prior art, the clarification treatment function of water is single, the removal effect is only realized on SS (suspended matters), TP (total phosphorus) and non-soluble pollutants, and the removal effect cannot be effectively realized on soluble and small molecular colloid pollutants. At present, the targeted removal of characteristic pollution by functional adsorption materials is becoming the mainstream of water treatment development. The functional multi-effect clarification system organically combines the high-efficiency adsorption performance of the functional adsorption material with the rapid and excellent separation performance of the functional multi-effect clarification system, expands the functions of the functional multi-effect clarification system from removal of granular macromolecular pollutants to soluble and small molecular colloid pollutants, optimizes the advantages of high speed and compactness of multi-effect clarification, good effluent quality and strong impact resistance, and can greatly increase the application scene of the system according to new treatment functions. The functional multi-effect clarification system can meet or cooperate with the requirements of defluorination, COD removal, hard magnesium silicon removal, color removal, TN removal and the like, and can be applied to the fields of pretreatment or advanced treatment of municipal sewage, park wastewater, printing and dyeing, mines, papermaking, electroplating, pharmacy and other wastewater.
The utility model provides a many effect of functional type clarification system, as shown in figure 1, figure 2, the system includes:
the system comprises a modularized trash rack subsystem 110, a functional reaction subsystem 120, a coagulation reaction subsystem 130, a flocculation reaction subsystem 140, a multi-effect clarification subsystem 150 and a dosing subsystem (not shown in the figure) which are sequentially arranged along the water flow direction.
The trash holding subsystem 110 includes a trash holding tank 111.
The functional reaction subsystem 120 includes a functional reaction tank 121 for removing characteristic contaminants by using one or more functional materials, and a first stirrer 122 and a first guide cylinder 123 are disposed in the functional reaction tank 121.
The coagulation reaction subsystem 130 includes a coagulation reaction tank 131.
The flocculation reaction subsystem 140 includes a flocculation reaction tank 141, and a second stirrer 142, a second guide cylinder 143, a guide plate (not shown in the figure), and a flocculant addition ring (not shown in the figure) are disposed in the flocculation reaction tank 141.
The multi-effect clarification subsystem 150 comprises a multi-effect clarification tank 151, the multi-effect clarification tank 151 is further connected with the flocculation reaction tank 141 through a medium recovery subsystem 160, and a cyclone separator (not shown in the figure) is arranged in the medium recovery subsystem 160 and used for recovering flocculation carriers.
The medium recycling subsystem 160 is also connected with the functional reaction tank 121 and the sludge storage tank 170 respectively through a sludge reflux pump, and the sludge storage tank 170 is connected with the sludge dewatering subsystem 180.
The dosing subsystem comprises a functional adsorption material preparation and dosing device connected with the functional reaction tank 121, a coagulant preparation and dosing device connected with the coagulation reaction tank 131, and a flocculant preparation and dosing device connected with the flocculation reaction tank 141. The method is used for realizing full-automatic addition of the functional adsorption material, the coagulant and the flocculant and improving the accuracy of the reaction.
In this embodiment, the sewage to be treated can be lifted by a water pump to enter the trash holding tank 111, the trash holding tank 111 is used for intercepting and filtering large suspended particles or garbage contained in the water at the water inlet, and in some embodiments, the trash holding tank 111 is internally provided with a grating or a filter screen for filtering and intercepting.
The functional reaction tank 121 is used for adding functional adsorption materials to remove soluble or small molecule colloid pollutants. The functional adsorbent material is substantially a material having a selective affinity for certain specific ions or molecules, such as organic and inorganic materials having a large surface area and appropriate pore size, and can adsorb certain substances from a gas phase or solution. For example, activated alumina, diatomaceous earth, white clay, silica gel, molecular sieves, activated carbon, activated coke, and adsorption resins, and the like. Specific pollutants are treated by adding functional adsorption materials into the functional reaction tank 121, so that directional, accurate and efficient decontamination is realized. Under the action of different functional adsorption materials, main characteristic pollutants in the sewage, such as fluorine, organic matters, calcium and magnesium ions, silicon compounds, total nitrogen and the like, are quickly and efficiently treated. The functional reaction tank 121 is provided with a first stirrer 122 and a first guide cylinder 123 matched with the first stirrer 122, and the first guide cylinder 123 wraps an impeller (not labeled) of the first stirrer 122, so that water driven by the impeller flows inside and outside the first guide cylinder 123 in a circulating manner.
And a coagulant is added into the coagulation reaction tank 131 for coagulation reaction, and the hydraulic retention time is 1-2 minutes. In some embodiments, a third stirrer 132 is disposed in the coagulation reaction tank 131 to improve coagulation effect. As a typical coagulant, PAC (polyaluminium chloride) can be used.
In the flocculation reaction tank 141, flocculation reaction is performed by adding a flocculation carrier, the ballasted flocculation technology is a rapid sedimentation technology, and the growth and sedimentation of a flocculating constituent are accelerated by adding high-density insoluble medium particles and utilizing the gravity sedimentation of the medium and the adsorption effect of the carrier. In this embodiment, by providing the second stirrer 142 and the second guide cylinder 143, the mixing efficiency of the flocculation vehicle and the water to be treated can be improved, and the water can be baffled by adding a guide plate (not shown in the figure), so as to increase the hydraulic retention time and the flocculation reaction time. The flocculating agent feeding ring can be an annular pipeline for conveying flocculating agents, and evenly provided with feeding ports at set intervals for evenly feeding the flocculating agents into the flocculation reaction tank 141.
The medium in the multi-effect clarification tank 151, which plays a role in intercepting and separating impurity particles, is suspended sludge, and a high-concentration stable active sludge layer is formed at the bottom of the tank through gravity sedimentation. The purified water flows from bottom to top, and the sludge layer can settle to the bottom of the clarification tank due to the action of gravity, so that the water is clarified. Clear water is collected at the upper part of the clarification tank.
In some embodiments, a sludge hopper 152 is arranged at the bottom of the multi-effect clarification tank 151, a mud scraper 153 with grid bars is arranged on the sludge hopper 152, and the bottom of the sludge hopper 152 is connected with a medium recovery subsystem 160. The sludge bucket 152 is of an inclined plane structure, the middle position is low, the periphery is high, sludge generated by flocculation sedimentation is settled to the sludge bucket 152 by gravity, and is continuously stirred to the center by the mud scraper 153 to enter the bottom of the sludge bucket 152 and is guided into the medium recovery subsystem 160.
The medium recycling subsystem 160 separates flocs containing flocculation carriers by arranging a cyclone separator (not shown in the figure), and generates strong three-dimensional elliptical strong-rotation shearing turbulent flow motion by using the centrifugal sedimentation principle after two-phase mixed liquid to be separated enters the cyclone tangentially from the periphery of the cyclone under certain pressure. Because of the particle size and density difference between the particles, the particles are subjected to different magnitudes of centrifugal force, centripetal buoyancy, fluid drag force and the like, under the action of centrifugal sedimentation, most of coarse and heavy particles are discharged through a bottom flow port of the cyclone, and most of fine particles are discharged through an overflow pipe, thereby achieving the purpose of separation and classification. In some embodiments, a magnetic separator (not shown) is also disposed within media recovery subsystem 160. The magnetic separator separates substances with different magnetism by the action of magnetic field force. The magnetic separator can be selected according to different carriers, for example, when sand is selected as the carrier, the magnetic separator is not needed, so that the investment cost is saved.
Further, after the separation by the medium recovery subsystem 160, the flocculation carriers in the sludge flow back to the flocculation reaction tank 141 for recycling, a part of the residual sludge returns to the functional reaction tank 121 through the sludge return pump for recycling, and the rest of the residual sludge enters the sludge storage tank 170 and the sludge dewatering subsystem 180 for dewatering treatment and then is transported outside for disposal or recycling. For the repeated circulation of the excess sludge, the removal capacity of the functional adsorption material to pollutants can be fully utilized, the addition amount of the functional adsorption material is reduced, and the operation cost is saved. The sludge dewatering subsystem 180 may be a dewatering plant, or other form of dewatering equipment.
In some embodiments, the sludge recirculation pump is a slurry pump, and the impeller of the slurry pump is a rubber impeller, to avoid heavy media carriers in the sludge such as: the abrasion of the magnetic powder, the sand and other particles to the impeller increases the service life of the sludge pump.
In some embodiments, sludge dewatering subsystem 180 includes a stack screw dewaterer.
In some embodiments, the multi-effect clarification tank 151 is provided with an inclined plate sedimentation zone formed by a plurality of groups of inclined plates 154 at the upper part, so that the hydraulic ascending flow rate is improved, the occupied area is saved, and on the other hand, the escaped flocculate is further precipitated and separated, and excellent clarified effluent is ensured.
In some embodiments, the trash holding tank 111, the functional reaction tank 121, the coagulation reaction tank 131, the flocculation reaction tank 141, and the multi-effect clarifier 151 are connected by an overflow weir.
In one embodiment, the functional multi-effect clarification system comprises a pretreatment subsystem, a functional reaction subsystem, a coagulation reaction subsystem, a flocculation reaction subsystem, a sedimentation subsystem, a medium recovery subsystem 160, a sludge dewatering subsystem 180, a dosing subsystem (not shown in the figure) and an electric automatic control subsystem (not shown in the figure).
Wherein, the pretreatment subsystem comprises a trash holding tank 111 provided with a grid.
The functional reaction subsystem comprises a functional reaction tank 121, a guide cylinder and a stirrer, wherein the guide cylinder and the stirrer are arranged in the functional reaction tank 121.
The coagulation reaction subsystem comprises a coagulation reaction tank 131 and a stirrer.
The flocculation reaction subsystem comprises a flocculation reaction tank 141, a guide shell and a stirrer.
The sedimentation subsystem comprises a clarification tank, an inclined tube flushing device and a mud scraper 153.
The media recovery subsystem 160 mainly includes a sludge pump, a magnetic separator (optional) and a cyclone separator.
The dosing subsystem comprises a preparation and dosing device of a functional adsorption material, a preparation and dosing device of a coagulant and a preparation and dosing device of a flocculating agent.
The electric automatic control subsystem comprises power supply and automatic control equipment of electric equipment such as a stirrer, a dosing pump, a sludge pump and the like, and can adopt a computer or a singlechip.
Specifically, the treatment process of the functional multi-effect clarification system comprises the following steps:
1) the sewage is lifted by the pump and then enters the trash holding tank 111, and is pretreated by the grille to remove pollutants and garbage with larger particle sizes so as to avoid blocking a subsequent device.
2) The sewage enters the functional reaction tank 121 after being intercepted by the grating. Under the action of the first guide cylinder 123 and the first stirrer 122, the sewage is fully contacted with the functional adsorption material and mixed, and the reaction time is 10-20 min. Under the action of different functional materials, characteristic pollutants, such as fluorine, COD, hardness, magnesium, silicon, chromaticity, TN and the like can be quickly and efficiently removed.
3) After the sewage is treated by the functional reaction tank 121, the sewage enters the coagulation reaction tank 131, and coagulation reaction is performed by mechanical stirring, wherein the adopted stirrer is a rapid stirrer, and the reaction time is 1-2 minutes. Good coagulation is a prerequisite for subsequent flocculation and precipitation.
4) The flocculation reaction occurs in the flocculation reaction tank 141, and a second stirrer 142, a second guide cylinder 143, a guide plate, a flocculating agent feeding ring and the like are arranged in the flocculation reaction tank 141, so that different flocculation energy differences inside and outside the second guide cylinder 143 can be formed. The flocculation speed in the draft tube is high, the axial flow mixer is used for stirring and lifting, the flocculating agent added by the flocculating agent adding ring, the recovered medium, the returned sludge and the coagulation water to be flocculated are fully stirred and mixed, the mixed liquid is pushed to continuously circulate and flow in the reactor, and the formation of large, compact and uniform alum flocs is promoted.
5) The flocculated water enters the pre-settling zone of the multi-effect clarifier 151 through a submerged weir between the hydraulic partition and the settling tank, and has excellent settling performance due to the large specific gravity of the loaded flocs, so that most of suspended solids can be settled (more than 90%) and concentrated in the zone. A mud scraper 153 with grid bars is arranged in the multi-effect clarification tank 151, so that the sludge concentration effect is improved.
6) The upper part of the multi-effect clarification tank 151 is provided with an inclined plate sedimentation area, so that on one hand, the hydraulic ascending flow speed is improved, the occupied area is saved, on the other hand, the residual alum blossom escaping from the pre-sedimentation area is further separated, and excellent clear water outlet is ensured. The uniform water distribution of the whole inclined plate sedimentation area is very important, and the short circuit of water flow can be avoided, so that the sedimentation is finished under the optimal state. In order to prevent the blockage of the inclined tube when the equipment runs for a long time, an inclined tube flushing device is arranged.
7) The media recovery subsystem 160 includes a magnetic separator, a cyclone separator, and a sludge recirculation pump. The magnetic separator can be selected according to different carriers, and if sand is selected as the carrier, the magnetic separator is not required to be arranged, so that the investment cost is saved. The medium recycling subsystem 160 recycles the medium into the flocculation reaction tank 141, and simultaneously ensures the sludge concentration in the flocculation reaction tank 141 through sludge backflow, creates favorable conditions for good flocculation reaction, increases the specific gravity of a flocculating body, improves the impact load resistance of the system, and is beneficial to sludge precipitation and effluent clarification. And one part of the residual sludge is discharged outside, and the other part of the residual sludge flows back to the functional reaction tank 121, so that the removal capability of the functional adsorption material on characteristic pollutants is fully utilized, and the operating cost is saved. The excess sludge that does not flow back to the functional reaction tank 121 enters the sludge storage tank 170, has a high water content, and is subjected to dehydration treatment and then is transported to an outside for disposal or recycling.
In some embodiments, as shown in fig. 2, the multi-effect clarification system of the present invention has 1 functional reaction tank 121, 1 coagulation reaction tank 131 and 1 flocculation reaction tank 141. The functional reaction tank 121 can remove the characteristic pollutants quickly and effectively, and the mixed liquid in the flocculation reaction tank 141 continuously and circularly flows to promote the formation of the alum flocs with larger volume, compactness and uniformity.
In some embodiments, the functional multi-effect clarification system of the utility model is provided with two sludge reflux pumps, on one hand, the sludge concentration of the flocculation reaction tank 141 can be improved through sludge reflux, the net catching effect in the flocculation process is increased, and the effluent is clear; on the other hand, the method can recover heavy medium carriers such as sand contained in the sewage, increase the specific gravity of the floc, ensure the formation of the compact floc and improve the ascending flow speed.
In some embodiments, the sludge reflux pump that functional type multiple-effect clarification system adopted is the sediment stuff pump, and the impeller is the rubber impeller, can avoid the heavy medium carrier in the mud like granule such as magnetic, grit to the wearing and tearing of impeller, increase sludge pump's life.
In some embodiments, the media recovery subsystem 160 of the functional multi-effect clarification system of the present invention comprises a cyclone separator and a magnetic separator (optional), which can recover the flocculation carrier into water, increase the specific gravity of the flocs, ensure the formation of compact flocs, and increase the ascending flow rate; on the other hand, the recovery rate of the flocculating carrier can reach 99 percent, thereby greatly saving the operating cost. In addition, whether a magnetic separator is configured or not can be selected according to the type of the flocculation carrier, so that flexible selection and feeding of the carrier are realized.
The functional multi-effect clarification system has the effects that:
(1) the removal efficiency to characteristic pollutant is high: corresponding functional type adsorbing materials are added aiming at the characteristic pollutants in the functional reaction tank 121, and the first stirrer 122 and the first guide cylinder 123 are matched for fully mixing the sewage and the medicament, so that the characteristic pollutants can be quickly and efficiently removed.
(2) The precipitation efficiency is high: because the utility model discloses a good condition has been created in the formation of the alum blossom that can deposit fast, is aided with the characteristic and the perfect hydraulic design that the loading deposits, the pipe chute separates simultaneously, makes the upflow speed of system can reach 20 ~ 50m/h, consequently deposits efficiently.
(3) Excellent water outlet stability: the functional adsorption material can specifically realize the efficient and rapid removal of characteristic pollutants, and simultaneously, the capture and aggregation of the pollutants are enhanced under good coagulation and flocculation conditions in the coagulation reaction tank 131; the loaded sediment is assisted with the capture of the residual alum blossom by the inclined tube, and high-quality effluent can be produced.
(4) The occupied area is small: ultrahigh rising flow speed, extremely short reaction time, compact structural design make functional multiple-effect clarification system becomes one of the most compact sedimentation system at present, takes up an area of 1/3 ~ 1/10 for the sedimentation tank of current universal use. The residence time of the whole system (including the reaction and precipitation system) is about 30min, enabling the possibility of equipping the process technology in larger scale applications.
(5) Saving the operation medicament: the grid is got rid of most large granule solid, has not only avoided the jam of follow-up pipeline, can also make medicament and sewage be in higher mixed effect, increases the reaction probability of medicament and pollutant. The stirring design has improved the reaction efficiency of medicament, and the setting of mud backward flow can further recycle the medicament of not complete reaction simultaneously, makes the utility model discloses reach the required medicament greatly reduced of the same reaction efficiency. Generally, the use amount of the medicament can be saved by 20-50%, and the operating cost is greatly saved.
(6) The sludge can be directly transported outside or recycled: through the built-in sludge storage tank 170 and the screw-stacking dewaterer, the screw-stacking dewaterer can be selected and matched according to whether a sludge dewatering workshop exists on the sewage treatment site. The water content of the discharged sludge is less than 80 percent, and the sludge can be directly transported and disposed or recycled. The multi-effect clarification tank 151 has a sludge concentration function, and excess sludge directly enters the sludge storage tank 170 and the sludge dewatering subsystem 180 through pipelines, so that the sludge can be buffered and regulated in the sludge storage tank 170 while the sludge concentration tank of a conventional system is omitted, and the dewatering machine can stably run.
(7) The arrangement is flexible: because the utility model discloses throw the medicine and add subsystem and the separated modularization of sludge dewatering subsystem 180 and arrange respectively on the less region of several areas. In the upgrading and transforming project of the existing sewage treatment plant or sewage treatment workshop, flexible arrangement can be realized in a limited space.
(8) The transportation is convenient: the utility model discloses compact structure, area is minimum, can arrange in one or two containers, has waited very big convenience for the transportation.
In summary, the functional multi-effect clarification system is provided with the functional reaction tank to treat the soluble and small molecule colloid pollutants by using the functional adsorption material; the medium recovery subsystem is arranged to recover the flocculation carrier, so that the economic benefit is improved; through setting up the sludge dewatering subsystem, carry out concentrated processing and recycle to mud, promote the efficiency of handling.
These are only examples of what is intended to be explicitly recited, and all possible combinations of numerical values between the lowest value and the highest value that are explicitly recited in the specification in a similar manner are to be considered.
A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not intended to foreclose other elements, ingredients, components or steps.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A functional, multi-effect clarification system, characterized in that it comprises:
the system comprises a modularized trash blocking subsystem, a functional reaction subsystem, a coagulation reaction subsystem, a flocculation reaction subsystem, a multi-effect clarification subsystem and a dosing subsystem which are arranged along the water flow direction;
the trash holding subsystem comprises a trash holding tank;
the functional reaction subsystem comprises a functional reaction tank for removing characteristic pollutants by using one or more functional materials, and a first stirrer and a first guide cylinder are arranged in the functional reaction tank;
the coagulation reaction subsystem comprises a coagulation reaction tank;
the flocculation reaction subsystem comprises a flocculation reaction tank, and a second stirrer, a second guide cylinder, a guide plate and a flocculating agent feeding ring are arranged in the flocculation reaction tank;
the multi-effect clarification subsystem comprises a multi-effect clarification tank, the multi-effect clarification tank is also connected with the flocculation reaction tank through a medium recovery subsystem, and a cyclone separator is arranged in the medium recovery subsystem and used for recovering flocculation carriers;
the medium recovery subsystem is also respectively connected with the functional reaction tank and the sludge storage tank through a sludge reflux pump, and the sludge storage tank is connected with the sludge dehydration subsystem;
the dosing subsystem comprises a functional adsorption material preparation dosing device connected with the functional reaction tank, a coagulant preparation dosing device connected with the coagulation reaction tank, and a flocculant preparation dosing device connected with the flocculation reaction tank.
2. The multi-effect clarification system according to claim 1, wherein a magnetic separator is further provided within the media recovery subsystem.
3. The functional multi-effect clarification system of claim 1, wherein the sludge reflux pump is a slurry pump, and the impeller of the slurry pump is a rubber impeller.
4. The multi-effect clarification system according to claim 1, wherein the sludge dewatering subsystem comprises a stack screw dewaterer.
5. The multi-effect clarification system according to claim 1, wherein a grid is arranged in the trash holding tank to remove large particle pollutants and garbage.
6. The functional multi-effect clarification system according to claim 1, wherein a sludge hopper is arranged at the bottom in the multi-effect clarification tank, a sludge scraper with grid bars is arranged on the sludge hopper, and the bottom of the sludge hopper is connected with the medium recovery subsystem.
7. The multi-effect clarification system according to claim 6, wherein the upper part of the multi-effect clarification tank is provided with an inclined plate sedimentation zone consisting of a plurality of groups of inclined plates.
8. The multi-effect clarification system according to claim 1, wherein the trash holding tank, the functional reaction tank, the coagulation reaction tank, the flocculation reaction tank and the multi-effect clarification tank are connected by overflow weirs.
9. The multi-effect clarification system according to any one of claims 1 to 8, wherein a third stirrer is arranged in the coagulation reaction tank.
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| CN115448500A (en) * | 2022-10-17 | 2022-12-09 | 西安西热水务环保有限公司 | Mine water cooperative hardness and fluorine removal system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115448500A (en) * | 2022-10-17 | 2022-12-09 | 西安西热水务环保有限公司 | Mine water cooperative hardness and fluorine removal system and method |
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