Device for removing new pollutants in water

Abstract

The invention discloses a device for removing new pollutants in water. The adsorption unit comprises a first adsorption module and a second adsorption module which are arranged in parallel; wherein the first adsorption module comprises an activated carbon adsorption module, and the inlet end and the outlet end of the activated carbon adsorption module are directly connected with a water inlet pipe and a water outlet pipe respectively; the second adsorption module comprises a cation exchange resin adsorption module, and the inlet end and the outlet end of the cation exchange resin adsorption module are independently connected with the water inlet pipe and the water outlet pipe respectively; a flow distribution device is arranged between parallel flow paths of the first adsorption module and the second adsorption module and is used for distributing the proportion of water flow entering the first adsorption module and the second adsorption module. The device for removing the new pollutants in the water is suitable for water treatment of various new pollutants, and has the advantages of long service life and stable adsorption capacity.

Description

Technical Field

[0001] This invention relates to the field of water environment management technology, and in particular to a device for removing new pollutants from water. Background Technology

[0002] With the advancement of industrialization and human production and life, new pollutants such as endocrine interferons, antibiotics, and perfluorinated compounds have emerged in the aquatic environment, posing potential risks to ecosystems and human health. The three types of new pollutants exhibit significant differences in physicochemical properties: endocrine interferons often contain polar groups, have complex molecular structures, and are diverse; antibiotic molecules frequently carry active groups such as amino and carboxyl groups, making them prone to complexing with substances in water; and perfluorinated compounds possess strong hydrophobicity, high surface energy, and unique intermolecular forces. These differences in properties result in them existing in different forms in water, such as dissolved and colloidal states, greatly increasing the difficulty of targeted removal. Currently, adsorption has become the core technology for removing new pollutants from water due to its ease of operation, low cost, and suitability for low-concentration pollutants. However, existing equipment suffers from significant technical drawbacks, including short lifespan, unstable adsorption capacity, and low adsorption efficiency.

[0003] Therefore, developing water treatment equipment that is adaptable to various new pollutants and has stable and efficient performance has become an urgent problem to be solved in the field of water environment management. Summary of the Invention

[0004] This invention discloses an apparatus for removing new pollutants from water, thereby solving the aforementioned technical problems existing in related art apparatuses for removing new pollutants from water.

[0005] To solve the above problems, the present invention adopts the following technical solution: This application provides an apparatus for removing new pollutants from water, including at least one adsorption unit, which includes a first adsorption module and a second adsorption module arranged in parallel. The first adsorption module includes an activated carbon adsorption module, whose inlet and outlet ends are directly connected to the water inlet pipe and the water outlet pipe, respectively. The second adsorption module includes a cation exchange resin adsorption module, whose inlet and outlet ends are independently connected to the water inlet pipe and the water outlet pipe, respectively. A flow distribution device is provided between the parallel flow paths of the first adsorption module and the second adsorption module to distribute the proportion of water flow entering the first adsorption module and the second adsorption module.

[0006] The technical solution adopted in this invention can achieve the following beneficial effects: The device for removing new pollutants in water provided by the application, the first adsorption module relies on the high adsorption capacity of activated carbon to endocrine disruptors and antibiotics, and mainly attacks the two types of pollutants; the second adsorption module mainly relies on the high adsorption capacity of cation exchange resin to perfluorinated compounds, and mainly attacks perfluorinated compounds; the device for removing new pollutants in water provided by the application is suitable for water treatment of multiple types of new pollutants, under the dual premise of ensuring water treatment effect and controlling equipment operation cost, the first adsorption module and the second adsorption module can be synchronized to reach the maximum adsorption capacity as much as possible, the processing capacity of the first adsorption module and the second adsorption module can be balanced as much as possible, the frequency of backwashing of the device can be significantly reduced, the loss of the equipment can be reduced, and the operation efficiency and economy can be improved. Specifically, the following advantages are provided: (1) The device for removing new pollutants in water provided by the application, under the condition that the concentration of pollutants is stable, by pre-adjusting the flow rate of the first adsorption module and the second adsorption module (such as reasonably dividing the treatment water volume according to the adsorption rate and capacity characteristics of the activated carbon adsorption module and the cation exchange resin adsorption module to the target pollutants), the activated carbon adsorption module in the first adsorption module and the cation exchange resin adsorption module in the second adsorption module can reach the adsorption upper limit at the same time, so that the capacity of the two types of adsorbents can be fully utilized in a single adsorption cycle, the problem of "single module capacity idling" can be avoided, the utilization rate of adsorbent resources can be significantly improved, and the waste of adsorbent resources can be avoided.

[0007] (2) The device for removing new pollutants in water provided by the application, when the first adsorption module and the second adsorption module reach the adsorption upper limit at the same time, only "synchronous backwashing" or "synchronous replacement" is needed, without the need to excessively operate another module to match the state of a module. For example, there is no need to forcibly backwash the cation exchange resin adsorption module which still has residual capacity when the activated carbon adsorption module is saturated, to avoid the exchange capacity of the resin from being attenuated due to frequent backwashing; there is also no need to replace the saturated activated carbon module in advance when the cation exchange resin adsorption module is not saturated. This "synchronous operation and maintenance" mode minimizes the excessive backwashing / replacement loss, effectively reduces unnecessary loss of adsorbents, and effectively prolongs the service life of the two types of adsorption modules.

[0008] (3) The device for removing new pollutants in water provided by the application adopts the first adsorption module and the second adsorption module arranged in parallel, can realize double-module synchronous saturation, and further realize precise matching of the "adsorption-operation and maintenance" cycle: in the adsorption stage, the double modules run efficiently at the same time, avoiding the decline of the treatment capacity caused by the early saturation of a module; in the operation and maintenance stage, the double modules are stopped and backwashed or replaced at the same time, greatly shortening the single operation and maintenance time, reducing the interference on the overall treatment process, and ensuring the continuity of the adsorption process. In addition, synchronous saturation can avoid the unbalanced state of "partial module saturation leakage and partial module still in adsorption", ensure that the two types of modules are always in an effective adsorption state during the entire adsorption cycle, and further maintain the stability of the effluent water quality. BRIEF DESCRIPTION OF DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0010] Fig. 1 is a structural schematic diagram of an embodiment of the present application; Fig. 2 is a schematic diagram of the pipeline connection of a single adsorption unit in an embodiment of the present application; Fig. 3 is a structural schematic diagram of a disposable activated carbon adsorption column and a reusable activated carbon adsorption column in an embodiment of the present application; Fig. 4 is a state schematic diagram of replacing a disposable activated carbon adsorption column in an embodiment of the present application.

[0011] In the figure: 10, adsorption unit; 101, reusable activated carbon adsorption column; 102, disposable activated carbon adsorption column; 103, cation exchange resin adsorption column; 20, water inlet pipe; 30, water outlet pipe; 40, processor; 50, mounting rack; 60, shell; 70, adsorption core rod; 80, fixed end. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0013] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of a kind and do not limit the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the front and rear associated objects are in an "or" relationship.

[0014] In the related art, in the adsorption treatment technology for new pollutants in water, the mainstream scheme mainly includes two types: one is to directly mix two adsorption materials, and the other is to combine two adsorption materials in a series mode to realize step-by-step adsorption.

[0015] From the series scheme, since the water flow needs to pass through different adsorption columns in sequence, there is a distinction between "adsorption column first contacted with sewage" and "adsorption column contacted with sewage later". For the adsorption column running first, it needs to bear the adsorption load of pollutants first, and is prone to rapid adsorption capacity decay due to impurity blockage, competitive adsorption and other problems, not only significantly reducing its own adsorption efficiency and capacity, but also directly leading to shorter service life, lower overall processing efficiency and reduced total adsorption capacity of the entire adsorption unit 10. More importantly, the organic matter (such as humic acid carried by the activated carbon adsorption column effluent) that the previous adsorption column fails to completely intercept will enter the subsequent adsorption column with the water flow, causing "poisoning" effect to the subsequent adsorption column, typically such as humic acid blocking the pores of the resin adsorption column, further weakening the performance of the subsequent adsorption column. The mixed scheme also has obvious defects: the adsorption materials (such as resin and activated carbon particles) will be physically rubbed due to water flow disturbance in the mixed state, and the resin particles are easily worn by the activated carbon particles, resulting in a significant damage to the ion exchange capacity of the resin particles.

[0016] At the same time, the removal of the three target new pollutants, endocrine disruptors, antibiotics and perfluorinated compounds, is mainly due to their own characteristics: first, high chemical structural stability, difficult to be decomposed by traditional processes; second, low concentration in water but strong toxicity, difficult to be accurately intercepted by conventional treatment methods; third, strong resistance to traditional water treatment processes, limited treatment efficiency. The physical and chemical properties of the three are quite different (such as endocrine disruptors containing polar groups and complex structure, antibiotics containing active groups prone to complexation, and perfluorinated compounds having strong hydrophobicity), further increasing the technical difficulty of simultaneous removal, so it is urgent to develop an adsorption treatment device that can simultaneously cope with the three types of new pollutants.

[0017] In addition, the existing adsorption device also generally faces the problem of "non-synchronous saturation of adsorption columns" in the actual treatment of the three types of new pollutants: when the adsorption column of a certain type has reached the upper limit of adsorption and cannot continue to intercept pollutants, the adsorption column of another type still has a lot of residual adsorption capacity and has not fully played its role. During the subsequent replacement or backwashing operation, in order to coordinate the processing rhythm of the saturated adsorption column, the unsaturated adsorption column needs to be forced to perform backwashing operation, which is prone to "excessive backwashing". This not only shortens the service life of the unsaturated adsorption column, but also causes the adsorption efficiency and single adsorption capacity of the unsaturated adsorption column to continue to decline, further aggravating the equipment operation loss.

[0018] Therefore, the present application provides a device for removing new pollutants in water. The device for removing new pollutants in water provided by the present application is described in detail below in combination with specific embodiments and application scenarios. Figs. 1 to 4 The device for removing new pollutants in water provided by the present application is described in detail below in combination with specific embodiments and application scenarios.

[0019] The present application provides a device for removing new pollutants in water, which comprises at least one adsorption unit 10, which comprises a first adsorption module and a second adsorption module connected in parallel. The first adsorption module comprises an activated carbon adsorption module, and the inlet end and the outlet end thereof are directly connected to the water inlet pipe 20 and the water outlet pipe 30, respectively. The second adsorption module comprises a cation exchange resin adsorption module, and the inlet end and the outlet end thereof are independently connected to the water inlet pipe 20 and the water outlet pipe 30, respectively. A flow distribution device is arranged between the parallel flow paths of the first adsorption module and the second adsorption module, for distributing the water flow ratio entering the first adsorption module and the second adsorption module.

[0020] In some embodiments, the flow distribution device comprises a first electric regulating valve arranged at the water inlet end of the first adsorption module and a second electric regulating valve arranged at the water inlet end of the second adsorption module. The device also comprises an intelligent distribution system, which comprises a processor 40 for acquiring water quality data of the first adsorption module outlet, the second adsorption module outlet and the water inlet end of the adsorption unit 10, and adjusting the opening degree of the first electric regulating valve and the second electric regulating valve according to the water quality data to control the water flow distribution ratio into the first adsorption module and the second adsorption module. It can be understood that the processor 40 can dynamically adjust the opening degree of the first electric regulating valve and the second electric regulating valve according to the obtained water quality data after acquiring the water quality data of the water inlet and the water quality data of the water outlet of the first adsorption module and the second adsorption module in real time; when the water quality of the water inlet fluctuates or the concentration of pollutants in the water outlet of a certain adsorption module rises (approaches saturation), the water flow distribution ratio can be adjusted in time to avoid the sudden decrease of adsorption capacity due to the sudden increase of load of a single adsorption module, and to maintain the stability of the overall adsorption capacity; dynamic water flow distribution can ensure that the two adsorption modules are always in the high-efficiency adsorption interval, avoid the idle of a certain adsorption module due to insufficient load or the premature failure of a certain adsorption module due to excessive load, and improve the overall adsorption efficiency; in terms of service life, the module is prevented from being overloaded through accurate control, and the performance degradation caused by excessive backwashing is reduced, thereby prolonging the service life of the module. The water quality data can be directly detected by existing water quality monitoring equipment, or the water quality data can be directly input through a man-machine interaction interface.

[0021] In some embodiments, the intelligent distribution system further comprises a first water quality monitoring device arranged at the water inlet end of the adsorption unit 10; a second water quality monitoring device arranged at the outlet end of the first adsorption module; a third water quality monitoring device arranged at the outlet end of the second adsorption module; The processor 40 is electrically connected with the first electric regulating valve, the second electric regulating valve, the first water quality monitoring device, the second water quality monitoring device and the third water quality monitoring device. It can be understood that the first water quality monitoring device is used for monitoring the water quality of the water inlet of the adsorption unit 10; the second water quality monitoring device is used for monitoring the water quality of the water outlet of the first adsorption module; the third water quality monitoring device is used for monitoring the water quality of the water outlet of the second adsorption module; and the processor 40 is used for receiving the water quality data monitored by the first water quality monitoring device, the second water quality monitoring device and the third water quality monitoring device, and dynamically adjusting the opening degree of the first electric regulating valve and the second electric regulating valve according to the water quality data to control the water flow distribution ratio into the first adsorption module and the second adsorption module. For the selection of the first water quality monitoring device, the second water quality monitoring device and the third water quality monitoring device, existing monitoring equipment can be selected, which can simultaneously and in real time monitor the concentration of endocrine disruptors, antibiotics and perfluorinated compounds in sewage.

[0022] In some embodiments, the intelligent distribution system further comprises: a first outflow velocity sensor arranged at the water outlet end of the first adsorption module; a second outflow velocity sensor arranged at the water outlet end of the second adsorption module; The processor 40 is electrically connected with the first outflow velocity sensor and the second outflow velocity sensor respectively. It can be understood that the outflow velocity is an indirect reflection of the adsorption state inside the adsorption module (for example, the flow velocity may decrease when the adsorption is close to saturation), the first outflow velocity sensor and the second outflow velocity sensor monitor the liquid flow velocity of the two adsorption modules in real time, and the processor 40 comprehensively regulates in combination with the flow velocity data and the water quality data; when the flow velocity of a certain adsorption module abnormally changes (for example, a sudden drop in flow velocity indicates possible blockage or saturation), the water flow distribution can be adjusted in time to avoid the adsorption capacity decreasing due to blockage aggravation, so as to maintain the stability of the adsorption capacity; at the same time, the abnormal state (for example, blockage) of the adsorption module can be warned in advance through the change of the flow velocity, so as to avoid the excessive damage of the adsorption module due to untimely processing, reduce the frequency of backwashing, and prolong the service life of the adsorption module; in addition, stable flow velocity can also ensure the continuous and efficient adsorption process, and indirectly improve the adsorption efficiency.

[0023] In some embodiments, the intelligent distribution system further comprises: a first flow sensor arranged at the water inlet end of the first adsorption module; a second flow sensor arranged at the water inlet end of the second adsorption module; The processor 40 is electrically connected with the first flow sensor and the second flow sensor respectively. It can be understood that the first flow sensor and the second flow sensor accurately monitor the actual water flow into the two adsorption modules, and the processor 40 calibrates the opening degree of the first electric regulating valve and the second electric regulating valve according to the flow data and the water quality data; it is avoided that the actual flow deviates from the preset value due to the opening degree deviation of the first electric regulating valve and the second electric regulating valve, the accuracy of the water flow distribution ratio is ensured, the two adsorption modules are always operated at the optimal load, it is avoided that the adsorption capacity decreases due to excessive flow of a certain adsorption module, or the adsorption efficiency is idle due to insufficient flow, the stability of the adsorption capacity is maintained, and the adsorption efficiency is improved; at the same time, accurate flow control can avoid the adsorption module bearing additional load due to flow fluctuation, reduce performance degradation, and indirectly prolong the service life.

[0024] In some embodiments, the activated carbon adsorption module in the first adsorption module comprises at least one of a disposable activated carbon adsorption column 102 and a reusable activated carbon adsorption column 101.

[0025] In some embodiments, when the activated carbon adsorption modules in the first adsorption module adopt the disposable activated carbon adsorption column 102 and the reusable activated carbon adsorption column 101, the disposable activated carbon adsorption column 102 and the reusable activated carbon adsorption column 101 are arranged in series in sequence along the direction of water flow. It can be understood that, from the perspective of water flow path and adsorption logic, the sewage to be treated will first flow through the disposable activated carbon adsorption column 102 and then enter the reusable activated carbon adsorption column 101. In this process, the disposable activated carbon adsorption column 102, as a pre-adsorption structure, will preferentially contact the pollutants (including target new pollutants and impurities in water) in the sewage, and its activated carbon pores will first trap most of the suspended impurities, macromolecular organic matter (such as humic acid), and part of the high-concentration target pollutants, thereby establishing a “pre-treatment barrier” for the subsequent reusable activated carbon adsorption column 101. The reusable activated carbon adsorption column 101 contacts the sewage that has been preliminarily purified by the disposable activated carbon adsorption column 102, and the content of pollutants (especially impurities and high-concentration pollutants that are prone to clogging pores) in the water has been significantly reduced, so the total amount of adsorbed pollutants and the amount of impurities accumulated in the reusable activated carbon adsorption column 101 will be less than that in the disposable activated carbon adsorption column 102. From the state of saturation of the first adsorption module, when the entire first adsorption module reaches saturation (i.e., the concentration of target pollutants in the effluent approaches the concentration of pollutants in the influent), it means that the adsorption sites of the disposable activated carbon adsorption column 102 have been basically occupied, and there may be a large amount of impurities clogging the pores (high degree of pollution). Although the reusable activated carbon adsorption column 101 also reaches saturation, due to the pre-trapping effect, the amount of impurities accumulated in its pores is less, and the adsorbed pollutants are mainly “target pollutants that have been preliminarily screened”, and the overall degree of pollution (impurity clogging and pollutant accumulation) is lower than that of the disposable activated carbon adsorption column 102. This difference in the degree of pollution is consistent with the design logic that the disposable activated carbon adsorption column 102 undertakes pre-treatment and the reusable activated carbon adsorption column 101 focuses on deep adsorption, which not only guarantees the overall adsorption efficiency, but also reserves more optimal conditions (less impurities, more thorough regeneration, and better recovery of adsorption performance after regeneration) for subsequent regeneration (backwashing) of the reusable activated carbon adsorption column 101, and the service life of the reusable activated carbon adsorption column 101 can be longer.

[0026] In some embodiments, the second adsorption module further comprises an activated carbon adsorption module arranged in series downstream of the cation exchange resin adsorption module; the activated carbon adsorption module in the second adsorption module adopts the disposable activated carbon adsorption column 102 or the reusable activated carbon adsorption column 101. It can be understood that this embodiment is suitable for cases with low content of endocrine disruptors and antibiotics.

[0027] In some embodiments, the disposable activated carbon adsorption column 102 and the reusable activated carbon adsorption column 101 each include a shell 60 and an adsorption core rod 70 arranged in the shell 60, and the two ends of the adsorption core rod 70 are detachably connected to the shell 60 by fixed end heads 80, such as by clamping, threaded connection, etc. It can be understood that the adsorption core rod 70 is detachably connected to the shell 60, and when the adsorption core rod 70 is saturated or fails, only the adsorption core rod 70 needs to be replaced instead of the entire column, avoiding the loss of the shell 60 due to frequent replacement, prolonging the service life of the shell 60, reducing the overall waste of materials of the equipment; when replacing the adsorption core rod 70, it does not need to disassemble the complex pipeline, which greatly shortens the downtime maintenance time and avoids the decrease in adsorption efficiency caused by long downtime. When replacing, only the fixed end heads 80 at both ends of the adsorption core rod 70 need to be quickly detached, then a new adsorption core rod 70 is pushed into one end of the shell 60, the saturated adsorption core rod 70 is pushed out of the shell 60 under the pushing force of the new adsorption core rod 70, and finally the fixed end heads 80 are connected to the shell 60, thereby completing the replacement of the disposable activated carbon adsorption column 102.

[0028] In some embodiments, the shell 60 is a straight pipe structure, and the water inlet and the water outlet are arranged at the two ends of the shell 60, respectively. It can be understood that the straight pipe structure of the shell 60 makes the water flow form a stable laminar flow in the shell 60, without water flow stagnation or short circuit caused by bending dead angle, ensuring that the sewage uniformly and fully contacts the adsorption core rod 70, reducing the adsorption blind area, and improving the utilization rate of the adsorbent; and the stable water flow rate can avoid the adsorption core rod 70 being prematurely saturated due to excessive impact or being idle due to insufficient water flow, ensuring that the overall adsorption rate of the core rod is as uniform as possible, and maintaining the stable output of the adsorption amount per unit time; at the same time, the straight pipe structure facilitates the smooth penetration of the water flow through the core rod during backwashing, reduces impurity residues, makes the reusable core rod cleaning more thorough, the performance decay slower, indirectly prolongs the service life of the core rod, and reduces the problem of frequent replacement caused by incomplete cleaning of the existing equipment.

[0029] In some embodiments, the adsorption unit 10 is one or more groups; when the adsorption unit 10 adopts multiple groups, the multiple groups of adsorption units 10 are arranged in parallel or in series. It can be understood that when arranged in parallel, a group of adsorption units 10 can meet the small-scale water treatment demand, avoiding the waste of idle equipment; when the water treatment capacity increases, multiple groups in parallel can simultaneously improve the overall treatment capacity, and each group of units maintains the efficient adsorption combination of "activated carbon + cation exchange resin", without sacrificing the adsorption efficiency of a single group due to the increase in water volume; and, multiple groups in parallel form "redundancy protection", if the adsorption capacity of a certain group of adsorption units 10 decreases due to local water quality fluctuations, other adsorption units 10 can normally undertake the load, avoiding the sudden increase in overall effluent concentration, and at the same time, the flow distribution adjustment of each group of adsorption units 10 can ensure that each adsorption module is in the optimal adsorption state, maintaining the stability of the overall adsorption capacity; at the same time, multiple groups in parallel support "rest operation and maintenance", when a certain group of adsorption units 10 needs to be backwashed or replaced, the operation of the group of adsorption units 10 can be suspended, and other adsorption units 10 continue to work, without the need for whole machine shutdown, which not only reduces the equipment downtime loss, but also avoids the shortening of the service life of the module due to the overrunning of a single group of adsorption units 10, greatly extending the continuous operation period of the overall equipment. When arranged in series, the adsorption units 10 arranged in series can realize stepwise deep treatment, and through the combination of multiple groups of "activated carbon + cation exchange resin", the treated sewage is progressively purified when flowing through each adsorption unit 10, and the pollutants that cannot be completely adsorbed by the previous group of adsorption units 10 can be further treated by the subsequent units, thereby improving the overall purification depth and treatment precision; this structure can form targeted division of labor, and the series connection can form "gradient indication" through the adsorption state change of each unit, which is convenient for judging the overall adsorption process and saturation degree through the performance difference between the front and rear units, providing more accurate reference for operation and maintenance; in addition, when a certain group of adsorption units 10 needs to be maintained, flow path switching can be used to realize short circuiting or bypassing, to a certain extent, to ensure the basic operation of the system, taking into account the treatment continuity and maintenance needs.

[0030] In some embodiments, the device further comprises a mounting rack body 50, and the adsorption unit 10 is mounted on the mounting rack body 50.

[0031] In some embodiments, each adsorption unit 10 comprises a disposable activated carbon adsorption column 102, a reusable activated carbon adsorption column 101, and a cation exchange resin adsorption column 103; wherein the adsorption unit 10 realizes the selective configuration of the following three working modes through a flow path switching device: The first working mode: the disposable activated carbon adsorption column 102 and the reusable activated carbon adsorption column 101 are arranged in series as a first adsorption module, the disposable activated carbon adsorption column 102 is located at the water inlet side, and the cation exchange resin adsorption column 103 is arranged as a second adsorption module; Second working mode: disposable activated carbon adsorption column 102 as the first adsorption module, reusable activated carbon adsorption column 101 and cation exchange resin adsorption column 103 are connected in series as the second adsorption module, and the cation exchange resin adsorption column 103 is located at the inlet side; Third working mode: reusable activated carbon adsorption column 101 as the first adsorption module, cation exchange resin adsorption column 103 as the second adsorption module, and disposable activated carbon adsorption column 102 in a non-enabled state.

[0032] In some embodiments, the flow path switching device comprises: Electric valves arranged at the inlets and outlets of the disposable activated carbon adsorption column 102, the reusable activated carbon adsorption column 101 and the cation exchange resin adsorption column 103; A manifold flow channel connected to the three groups of adsorption columns; The preset program of the processor 40 comprises valve opening and closing combination logic corresponding to the three working modes. It can be understood that the design of the flow path switching device realizes multi-dimensional function optimization through the combination of electric valves, manifold flow channels and the preset program of the processor 40: the three groups of adsorption columns of different types can be flexibly adapted to various processing requirements by means of valve switching, the distinction between the disposable activated carbon adsorption column 102 and the reusable activated carbon adsorption column 101 can balance the processing efficiency and cost control, and the cation exchange resin adsorption column 103 expands the processing capacity for specific substances; the manifold flow channel simplifies the pipeline structure and improves the system integration; and the valve opening and closing logic controlled by the preset program ensures the automation and accuracy of the switching process, reduces human intervention errors, and overall enhances the adaptability of the device to complex working conditions, while taking into account the economy and stability of the operation, providing an efficient and flexible solution for related processing procedures.

[0033] The following detailed description describes three working modes of the device for removing new pollutants in water in the present application: I. First working mode (the total content of endocrine disruptors and antibiotics is not much different from the content of perfluorinated compounds, and is within the preset range): The disposable activated carbon adsorption column 102 and the reusable activated carbon adsorption column 101 are connected in series as the first adsorption module, the disposable activated carbon adsorption column 102 is located at the inlet side, and the cation exchange resin adsorption column 103 is used as the second adsorption module.

[0034] In this mode, after the sewage to be treated enters the adsorption unit 10, the first water quality monitoring device confirms that the pollutant content difference meets the preset range, the processor 40 is adjusted to the first working mode, and the first electric regulating valve (controlling the flow entering the first adsorption module) and the second electric regulating valve (controlling the flow entering the second adsorption module) are adjusted to ensure that the two adsorption modules respectively undertake the pollutant load matched with their adsorption capacity. The disposable activated carbon adsorption column 102 of the first adsorption module preferentially intercepts part of the endocrine disruptors and antibiotics in the sewage, and a small amount of short-chain perfluorinated compounds are adsorbed; the reusable activated carbon adsorption column 101 further adsorbs the remaining endocrine disruptors and antibiotics, maximizes the use of the high capacity characteristics of activated carbon, and reduces the leakage of the two types of pollutants to the effluent end. The cation exchange resin adsorption column 103 of the second adsorption module is dedicated to adsorbing perfluorinated compounds (especially long-chain perfluorinated compounds).

[0035] Water flow path: sewage enters the first adsorption module from the water inlet pipe 20, first passes through the disposable activated carbon adsorption column 102, then passes through the reusable activated carbon adsorption column 101, and then enters the water outlet pipe 30; the sewage enters the second adsorption module from the water inlet pipe 20, passes through the cation exchange resin adsorption column 103, and then enters the water outlet pipe 30. Flow regulation: during operation, the second water quality monitoring device (the effluent end of the first adsorption module) focuses on monitoring the concentrations of endocrine disruptors and antibiotics, and the third water quality monitoring device (the effluent end of the second adsorption module) focuses on monitoring the concentration of perfluorinated compounds. If the concentrations of the two types of pollutants in the effluent of the first adsorption module increase (indicating that the activated carbon capacity is close to saturation), the processor 40 immediately reduces the opening degree of the first electric regulating valve to reduce the water inflow, and simultaneously adjusts the second electric regulating valve to increase the resin module flow; if the concentration of perfluorinated compounds in the effluent of the second adsorption module increases, the flow is adjusted in the opposite direction to ensure that both adsorption modules are operating efficiently within the capacity range and to avoid a sharp decrease in adsorption capacity due to capacity overdraft. II. Second working mode (the content of endocrine disruptors and antibiotics is less, and the difference in the content of perfluorinated compounds is greater than the preset value): The disposable activated carbon adsorption column 102 serves as the first adsorption module, and the reusable activated carbon adsorption column 101 and the cation exchange resin adsorption column 103 are connected in series as the second adsorption module, and the cation exchange resin adsorption column 103 is located on the water inlet side.

[0036] In this mode, the first water quality monitoring device confirms that the endocrine disruptor and antibiotic content is low, and the processor 40 adjusts to the second working mode. At the same time, the processor 40 adjusts the flow distribution: because the perfluorinated compound content is high, the second electric regulating valve opening is adjusted to be large (for example, the second adsorption module bears 70%-80% of the flow, matching its high capacity for perfluorinated compounds), and the first electric regulating valve opening is adjusted to be small (for example, the first adsorption module bears 20%-30% of the flow, only processing a small amount of the two types of pollutants). The cation exchange resin adsorption column 103 of the second adsorption module preferentially contacts high-flow sewage, relies on its high capacity for perfluorinated compounds, quickly traps most of the perfluorinated compounds, and avoids them from entering the subsequent reusable activated carbon adsorption column 101 (reducing the activated carbon load); the sewage treated by the cation exchange resin adsorption column 103 (the perfluorinated compound has been greatly reduced) enters the reusable activated carbon adsorption column 101, which assists in adsorbing the remaining small amount of perfluorinated compounds and trace amounts of endocrine disruptors and antibiotics (at this time, the activated carbon capacity is sufficient, and there is no need to worry about overload). The disposable activated carbon adsorption column 102 of the first adsorption module is targeted to adsorb endocrine disruptors and antibiotics.

[0037] Water flow path: sewage enters the first adsorption module from the water inlet pipe 20, passes through the disposable activated carbon adsorption column 102, and then enters the water outlet pipe 30; sewage enters the second adsorption module from the water inlet pipe 20, first passes through the cation exchange resin adsorption column 103, then passes through the reusable activated carbon adsorption column 101, and then enters the water outlet pipe 30. Flow control: the third water quality monitoring device (second adsorption module outlet) mainly monitors the concentration of perfluorinated compounds. If the concentration rises (indicating that the capacity of the cation exchange resin adsorption column 103 is close to the upper limit), the processor 40 immediately adjusts the second electric regulating valve opening to be small, and appropriately adjusts the first electric regulating valve opening to be large (let the disposable activated carbon adsorption column 102 temporarily replace the adsorption of a small amount of perfluorinated compounds, although it is not the best, but it can avoid the capacity of the cation exchange resin adsorption column 103 being overdrawn); if the concentration of the two types of pollutants in the first adsorption module outlet rises, the disposable activated carbon adsorption column 102 is quickly replaced to ensure that the second adsorption module continues to dominate perfluorinated compound adsorption and maximizes its high capacity advantage.

[0038] III. Third working mode (short-chain perfluorinated compounds in the water sample to be treated): The reusable activated carbon adsorption column 101 is used as the first adsorption module, the cation exchange resin adsorption column 103 is used as the second adsorption module, and the disposable activated carbon adsorption column 102 is in a non-enabled state.

[0039] In this mode, the first water quality monitoring device confirms that the perfluorinated compound is a short-chain type, and the processor 40 adjusts to the third working mode, and adjusts the first electric regulating valve (controls the flow into the first adsorption module) and the second electric regulating valve (controls the flow into the second adsorption module). The cation exchange resin adsorption column 103 of the second adsorption module relies on high capacity and efficient adsorption of short-chain perfluorinated compounds; the reusable activated carbon adsorption column 101 of the first adsorption module utilizes high capacity of endocrine disruptors and antibiotics, and focuses on adsorbing the two types of pollutants.

[0040] Water flow path: sewage enters the first adsorption module through the reusable activated carbon adsorption column 101 from the inlet pipe 20, and then enters the outlet pipe 30; sewage enters the second adsorption module through the cation exchange resin adsorption column 103 from the inlet pipe 20, and then enters the outlet pipe 30.

[0041] Flow control: during operation, the first outflow speed sensor and the second outflow speed sensor monitor the flow rate (the flow rate of the resin column after adsorption of short-chain perfluorinated compounds changes slowly), and combine with the data of the water quality monitoring device to control: if the concentration of short-chain perfluorinated compounds in the second adsorption module effluent increases (indicating that the capacity is close to saturation), the processor 40 reduces the flow rate and increases the flow rate of the first adsorption module (the activated carbon temporarily replaces a small amount of short-chain perfluorinated compounds, although it is not optimal, but it can avoid overloading the cation exchange resin adsorption column 103); if the concentration of the two types of pollutants in the first adsorption module effluent increases, the adjustment is reversed to maximize the capacity utilization of the two adsorption modules.

[0042] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A device for removing new pollutants from water, characterized in that, It includes at least one adsorption unit, which includes a first adsorption module and a second adsorption module arranged in parallel. The first adsorption module includes an activated carbon adsorption module, whose inlet and outlet ends are directly connected to the water inlet pipe and the water outlet pipe, respectively. The second adsorption module includes a cation exchange resin adsorption module, whose inlet and outlet ends are independently connected to the water inlet pipe and the water outlet pipe, respectively. A flow distribution device is provided between the parallel flow paths of the first adsorption module and the second adsorption module to distribute the proportion of water flow entering the first adsorption module and the second adsorption module.

2. The apparatus for removing new pollutants from water according to claim 1, characterized in that, The flow distribution device includes a first electric regulating valve located at the water inlet of the first adsorption module and a second electric regulating valve located at the water inlet of the second adsorption module. The device also includes an intelligent distribution system, which includes a processor. The processor is used to acquire water quality data from the liquid outlet of the first adsorption module, the liquid outlet of the second adsorption module, and the water inlet of the adsorption unit, and adjust the opening of the first electric regulating valve and the second electric regulating valve according to the water quality data to control the water flow distribution ratio into the first adsorption module and the second adsorption module.

3. The apparatus for removing new pollutants from water according to claim 2, characterized in that, The intelligent allocation system also includes: A first outflow velocity sensor is installed at the water outlet of the first adsorption module; A second outflow velocity sensor is installed at the water outlet of the second adsorption module; The processor is electrically connected to the first outflow velocity sensor and the second outflow velocity sensor, respectively. And / or, the intelligent allocation system further includes: A first flow sensor is installed at the water inlet end of the first adsorption module; A second flow sensor is installed at the water inlet end of the second adsorption module; The processor is electrically connected to the first flow sensor and the second flow sensor, respectively.

4. The apparatus for removing new pollutants from water according to claim 1, characterized in that, The activated carbon adsorption module in the first adsorption module includes at least one of a disposable activated carbon adsorption column and a reusable activated carbon adsorption column.

5. The apparatus for removing new pollutants from water according to claim 4, characterized in that, When the activated carbon adsorption module in the first adsorption module uses disposable activated carbon adsorption columns and reusable activated carbon adsorption columns, the disposable activated carbon adsorption columns and reusable activated carbon adsorption columns are connected in series along the direction of water flow.

6. The apparatus for removing new pollutants from water according to claim 5, characterized in that, The second adsorption module also includes an activated carbon adsorption module connected in series downstream of the cation exchange resin adsorption module; the activated carbon adsorption module in the second adsorption module uses a disposable activated carbon adsorption column or a reusable activated carbon adsorption column. And / or, the cation exchange resin adsorption module employs a cation exchange resin adsorption column.

7. The apparatus for removing new pollutants from water according to claim 6, characterized in that, Each adsorption unit includes a disposable activated carbon adsorption column, a reusable activated carbon adsorption column, and a cation exchange resin adsorption column; the adsorption unit can be selectively configured with the following three operating modes through a flow path switching device: First working mode: A disposable activated carbon adsorption column and a reusable activated carbon adsorption column are connected in series as the first adsorption module, with the disposable activated carbon adsorption column located on the inlet water side and the cation exchange resin adsorption column serving as the second adsorption module. Second working mode: The disposable activated carbon adsorption column serves as the first adsorption module, and the reusable activated carbon adsorption column and the cation exchange resin adsorption column are connected in series as the second adsorption module, with the cation exchange resin adsorption column located on the inlet side. The third working mode: the reusable activated carbon adsorption column is used as the first adsorption module, the cation exchange resin adsorption column is used as the second adsorption module, and the disposable activated carbon adsorption column is in the inactive state.

8. The apparatus for removing new pollutants from water according to claim 7, characterized in that, Both the disposable activated carbon adsorption column and the reusable activated carbon adsorption column include a shell and an adsorption core rod disposed inside the shell. The two ends of the adsorption core rod are detachably connected to the shell through fixed ends.

9. The apparatus for removing new pollutants from water according to claim 8, characterized in that, The shell is a straight tube structure, with an inlet and an outlet at each end.

10. The apparatus for removing new pollutants from water according to any one of claims 1-9, characterized in that, The adsorption unit can be one or more sets; when multiple sets of adsorption units are used, the multiple sets of adsorption units can be arranged in parallel or in series.

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