JP2012192314A - Regeneration apparatus, regeneration method, and recovery system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To regenerate adsorption function by easily separating objects, such as valuables and harmful substances, from an adsorbent that has adsorbed such objects.SOLUTION: An apparatus, which regenerates the adsorption function of the adsorbent by separating the object substances from the adsorbent that has adsorbed the object substances of wastewater, includes a liquid flow pipe, a connection part, and a rotating mechanism. The liquid flow pipe injects washing liquid for separating the object substances from the adsorbent in a container where the adsorbent that has adsorbed the object substances exists, and drains the separated object substances and the washing liquid after use from the container. The connection part is connected to the liquid flow pipe, and also connected to the container so that a pipe port of the liquid flow pipe locates in the container. When a layer of the adsorbent and a layer of the washing liquid after use containing the object substances are formed in the container by the injection of the washing liquid, the rotating mechanism inclines the container so that the pipe port is located higher than the layer of the adsorbent.

Description

  Embodiments of the present invention include a regeneration apparatus and a regeneration method for regenerating an adsorption function by separating an object from an adsorbent that has adsorbed a target substance such as a valuable material or a harmful substance, and an object in wastewater using the adsorbent. The present invention relates to a collection system for collecting things.

  Industrial wastewater and public wastewater may contain valuable materials such as fluorine, boron, phosphorus, and rare metals, and harmful materials such as oil and heavy metals. As wastewater treatment of these wastewaters, separation of valuable materials and harmful substances from wastewater is generally performed.

  For example, in order to separate target substances of valuable and harmful substances, the target substance may be collected using an adsorbent that selectively adsorbs these target substances. Specifically, although there are various methods for regenerating the adsorbent, the adsorbent adsorbed from the adsorbent is separated from the adsorbent by mixing the adsorbent adsorbed with the target substance and a liquid such as a cleaning solution. Thereafter, the target substance is collected. In order to collect such target substances, complicated devices and processes are used.

  There are various types of adsorbents, but in recent years, reusable adsorbents have attracted attention. At this time, it is desirable to easily recover the adsorbent separated from the target substance. However, a complicated apparatus or process is used for recovering the adsorbent.

JP 2010-99575 A

  In view of the above problems, the present invention provides a regeneration device and a regeneration method for easily separating an adsorbent that has adsorbed objects such as valuables and harmful substances and regenerating the adsorption function, and using the adsorbent to A recovery system for easily recovering an object is provided.

  The regeneration device according to the embodiment is a device that regenerates the adsorption function of the adsorbent by separating the target substance from the adsorbent obtained by adsorbing the target substance of drainage, and includes a liquid passing pipe, a connection portion, and a rotation mechanism. . The liquid flow pipe injects a cleaning liquid that separates the target substance from the adsorbent into a container in which the adsorbent that adsorbs the target substance exists, and discharges the target substance separated from the container and the cleaning liquid after use. The connecting portion is connected to the container so that the liquid pipe is connected and the tube port of the liquid pipe is located inside the container. The rotating mechanism is configured such that when the adsorbent layer and the used cleaning liquid layer containing the target substance are formed in the container by the injection of the cleaning liquid, the pipe port is positioned above the adsorbent layer. Tilt the container.

It is a schematic diagram of a recovery system concerning a 1st embodiment. It is the schematic of the reproducing | regenerating apparatus concerning 2nd Embodiment. It is a figure explaining operation | movement of the reproducing | regenerating apparatus of FIG. It is a figure explaining the L-shaped tube of the reproducing | regenerating apparatus of FIG. It is a figure explaining an example of the process in the reproducing | regenerating apparatus of FIG. FIG. 10 is a diagram for explaining a playback device according to a first modification. FIG. 10 is a diagram for explaining a playback device according to Modification 2. FIG. 10 is a diagram for explaining a playback device according to Modification 3. It is the schematic of the reproducing | regenerating apparatus concerning 3rd Embodiment. It is a figure explaining the relationship between the frequency | count of washing | cleaning of an adsorbent, and a desorption rate. It is a figure explaining the usage method of a washing | cleaning liquid.

  Embodiments of the present invention will be described below with reference to the drawings. The recovery system according to an embodiment of the present invention uses an adsorbent that adsorbs the target substance from wastewater containing the target substance such as valuable substances such as fluorine, boron, phosphorus, and rare metals, and harmful substances such as oil and heavy metals. This is a system for collecting the target substances. In addition, the regeneration device according to the embodiment of the present invention is a device that regenerates the function of the adsorbent that has adsorbed the target substance in the recovery system. Furthermore, the regeneration method according to the embodiment of the present invention is a method for regenerating the function of the adsorbent that has adsorbed the target substance in this recovery system. In the following description, the target substance of the recovery system will be described as a valuable material, but the same applies even if it is replaced with a hazardous material. Moreover, in the following description, about the same structure, the same code | symbol is attached | subjected and description is abbreviate | omitted.

<First Embodiment>
As shown in FIG. 1, the recovery system 1 according to the first embodiment of the present invention includes water pumps 10 a and 10 b that feed waste water B, a reaction tank 11 that reacts a valuable material A and an adsorbent C, and a reaction. An injection device 13 for injecting the adsorbent C into the tank 11, a drive device 14 for driving the injection device 13, a centrifugal sedimentation device 15 used for separating the adsorbent C that has adsorbed the valuable material A, and an adsorption of the adsorbent C And a playback device 2 used for playback of the function. A cartridge 100 is connected to each of the injection device 13 and the centrifugal sedimentation device 15.

  Drainage B containing valuable material A, which is a material to be collected by the collection system 1, flows into the reaction tank 11 through the line L1 by the first water pump 10a. Further, the adsorbent C having a function of adsorbing the valuable material A in the waste water is injected into the reaction tank 11 by the injection device 13. The reaction tank 11 has a stirrer 12, and the valuable material A in the waste water B is adsorbed to the adsorbent C by stirring with the stirrer 12. Waste water B including the adsorbent C that has been stirred by the stirrer 12 and adsorbs the valuables A (hereinafter referred to as “post-use adsorbent C ′”) is sent to the line L2. The stirrer 12 may use a stirring method such as a line mixer in addition to the method of installing in the reaction vessel 11.

  The injection device 13 is connected to a cartridge 100 c that is a container for storing the adsorbent C to be injected into the waste water B. The adsorbent C in the cartridge 100 c is injected into the reaction tank 11 by the injection device 13 driven by the drive device 14 and reacts with the valuable material A in the waste water B.

  The 2nd water pump 10b is installed on the line L2, and the waste_water | drain B sent out from the reaction tank 11 flows in into the centrifugal sedimentation apparatus 15 connected with the line L2 by the 2nd water pump 10b. The centrifugal sedimentation device 15 swirls the drained water B that flows in, and uses the centrifugal force to settle the post-use adsorbent C ′ having a larger specific gravity difference than water, thereby treating the treated water D and the post-use adsorbent C ′. To separate. Therefore, it is necessary for the second water pump 10b to feed the drainage water at such a pressure that the drainage B turns in the centrifugal sedimentation device 15. It should be noted that the present invention is not limited to the centrifugal sedimentation device 15, and other forms such as a cyclone may be used as long as the drainage B can be swirled and separated into the used adsorbent C 'and the treated water D.

  The centrifugal settling device 15 includes an adsorbent discharge pipe 16 for discharging the settled post-use adsorbent C ′, and a treated water discharge pipe 17 for discharging the treated water D after the post-use adsorbent C ′ is separated. Is connected. The adsorbent discharge pipe 16 is connected to a cartridge 100 that is a container for collecting the used adsorbent C ′ discharged from the centrifugal sedimentation device 15. When a certain amount of the adsorbent C ′ after use is stored, the cartridge 100 that satisfies a predetermined condition is moved to the reproducing device 2.

  The regeneration device 2 is a device that regenerates the adsorption function of the adsorbent C by desorbing the valuable material A adsorbed from the adsorbent C ′ after use. When the regenerator 2 desorbs the valuable material A from the adsorbent C, the regenerator 2 discharges the valuable material A from the cartridge 100. Although the adsorbent C differs depending on the target substance contained in the wastewater, for example, the adsorbent C having an inorganic particle or the like as a core and the surface thereof being coated with a polymer may be used. In the case of such a functional particle, it becomes reusable by desorbing the target substance of the wastewater captured by this polymer. The regenerator 2 regenerates the function of the adsorbent C by removing the target substance in the waste water from the functional particles using a liquid that desorbs the target substance such as a medicine. The reproducing apparatus 2 will be described later with reference to FIG.

  The cartridge 100 in which the adsorbent C whose adsorption function has been regenerated remains inside is then moved to the injection device 13. In the injection device 13, the adsorbent C whose adsorption function has been regenerated is injected from the cartridge 100 into the waste water B.

  As described above, in the collection system 1, by using the cartridge 100, the adsorbent C in the cartridge 100 is injected into the waste water B to adsorb the valuable material A, and the used adsorbent C ′ is removed from the empty cartridge 100. To be recovered (adsorption process). Further, the valuable material A is separated from the adsorbent C ′ after use in the cartridge 100 to regenerate the adsorption function of the adsorbent C, and the separated valuable A is discharged from the cartridge 100 (desorption / regeneration step). If only the adsorbent C remains in the cartridge 100 in this way, the adsorbent C is used again for injection into the drainage B.

  In this way, by using the cartridge 100, the injection of the adsorbent C in the adsorption process and the recovery and regeneration of the adsorbent C in the desorption / regeneration process are repeated to facilitate the operation of the recovery system 1, that is, the use of the adsorbent C. can do. Moreover, since the adsorbent C used for recovery of target substances such as valuables and harmful substances can be easily reused, the amount of the adsorbent C used in the recovery system 1 can be reduced. Furthermore, the operation cost of the collection system 1 can be reduced by operating the collection system 1 easily and reducing the amount of the adsorbent C used.

Second Embodiment
As shown in FIG. 2, the reproducing apparatus 2 according to the second embodiment includes a gantry 21, a table 22, a connection unit 23, a rotating shaft 24, a rotating mechanism 25, a liquid passing pipe 26, a sensor 27, and the like. , A stirrer 28, a moving mechanism 29, a valve 30, a capturing device 31, and a sensor 32. FIG. 2A shows a front view, and FIG. 2B shows a side view. The regeneration device 2 is, for example, a device used in the recovery system 1 described above with reference to FIG. 1, and the post-use adsorbent C ′ used in the recovery system 1 for recovering target substances such as valuables and harmful substances. Is a device for regenerating the adsorption function.

  In the regenerating apparatus 2, a connection portion 23 including a liquid passing pipe 26, a sensor 27, and a stirrer 28 is supported on the table 22 via a rotating shaft 24. In addition, the table 22 is supported on the gantry 21 via a moving mechanism 29.

  The connecting portion 23 is connected to the cartridge 100 which is a container for storing the adsorbent C ′ after use by using a fixture (not shown), and discharges the valuable material A detached from the adsorbent C from the cartridge 100. Therefore, the cartridge 100 is tilted. For example, the cartridge 100 connected as shown in FIG. 3A is rotated in the A1 direction about the rotation shaft 24 (rotation axis X1) as shown in FIG. In the reproducing apparatus 2 shown in FIG. 3, the components other than the gantry 21, the table 22, the connecting portion 23, the rotating shaft 24, and the moving mechanism 29 are not shown. Although the shape of the cartridge 100 is not specified, it may be a cylindrical shape or a prismatic shape.

  The moving mechanism 29 is installed such that the table 22 is slidable in the long axis direction of the gantry 21 and slides the table 22 when the cartridge 100 is inclined. For example, as shown in FIG. 3A, the table 22 that supports the connecting portion 23 connected to the cartridge 100 is moved in the B1 direction as shown in FIG. 3B.

  The liquid flow pipe 26 is generated by injecting a cleaning liquid used for regenerating the adsorption function of the adsorbent C into the cartridge 100 in a state where the cartridge 100 is connected to the connection portion 23, or by regenerating the adsorbent C from the cartridge 100. Drain the removed liquid. One end of the liquid passage tube 26 inserted into the cartridge 100 is formed in an L-shaped tube 33 as shown in FIG. 4A, and the tube port 33 a of the L-shaped tube 33 faces the cartridge 100. It is preferable. In the example shown in FIG. 4, the L-shaped tube 33 can be moved in the B2 direction by a driving means (not shown) along the liquid passing tube 26 and is rotated in the A2 direction around the rotation axis X2. Thus, the position of the tube port 33a of the L-shaped tube 33 can be moved. For example, as shown in FIG. 4B, when the valuable item A to be discharged becomes shallower than the depth h1, the L-shaped tube 33 is rotated α2 ° by the driving means about the rotation axis X2, and the tube port If the position 33a is moved, the valuable material A can be discharged until the depth h2 is reached. Further, when the L-shaped tube 33 is rotated α3 ° by the driving means about the rotation axis X2 to move the position of the tube port 33a, the valuable material A can be discharged until the depth h3 is reached.

  The reproduction process in the reproduction apparatus 2 will be described with reference to FIG. In the playback device 2 shown in FIG. 5, the gantry 21, the table 22, the rotating shaft 24, the rotating mechanism 25, and the moving mechanism 29 are not shown.

  First, the cartridge 100 in which the used adsorbent C ′ is stored is connected to the connecting portion 23 as shown in FIG. Thereafter, in the regenerator 2, the cleaning liquid E is injected into the cartridge 100 through the liquid passage pipe 26 with the valve 30 opened. The cleaning liquid E is a liquid having a function of detaching the valuable material A from the adsorbent C ′ after use. In the reproducing apparatus 2, the used adsorbent C ′ and the cleaning liquid E are stirred by the stirrer 28 while or after the cleaning liquid E is injected into the cartridge 100. Thereby, the valuable material A can be detached from the adsorbent C. The valve 30 is closed when the injection of the cleaning liquid E is completed.

  Here, the adsorbent C is heavier than the valuables A and the cleaning liquid E. Therefore, when the valuable material A is desorbed from the adsorbent C due to the effect of the cleaning liquid E and the movement of the liquid is settled in the cartridge 100 by stirring, as shown in FIG. A layer of cleaning liquid E (hereinafter referred to as “desorbed liquid E ′”) containing valuable material A located on the layer of adsorbent C can be formed.

  When the valuable material A is desorbed from the adsorbent C by the cleaning liquid E and separated into the adsorbent C layer and the cleaning liquid E layer in the cartridge 100, the regenerator 2 is configured as shown in FIG. The cartridge 100 is tilted by the rotation mechanism 25. Even in the inclined cartridge 100, a layer of the desorbed liquid E ′ is formed on the layer of the adsorbent C. Therefore, in the reproducing apparatus 2, only the desorbed liquid E ′ can be discharged from the cartridge 100 by positioning the tube port 33 a of the L-shaped tube 33 above the depth of the adsorbent C. That is, when the movement of the liquid is settled in the tilted cartridge 100, the reproducing apparatus 2 has the tube port 33a of the L-shaped tube 33 with the adsorbent C around the rotation axis X2, as shown in FIG. The L-shaped tube 33 is inclined in the direction of A2 until the depth h2 that is the boundary of the desorbed liquid E ′ is reached. Thereafter, the regenerator 2 opens the valve 30 and discharges the detachment liquid E ′ from the cartridge 100 via the liquid passage pipe 26. Thereby, in the reproducing apparatus 2, only the adsorbent C can be left in the cartridge 100. In FIG. 5D, the illustration of the configuration other than the cartridge 100 and the L-shaped tube 33 is omitted.

  At this time, since the boundary between the adsorbent C and the desorbed liquid E ′ can be measured by the sensor 27, the L-shaped tube 33 may be adjusted according to the measurement result of the sensor 27. For example, when the cartridge 100 is transparent or translucent and the internal state is visible, it can be determined visually without using the sensor 27.

  The sensor 32 is a turbidimeter or the like, and detects whether or not the adsorbent C is contained in the desorbed liquid E ′ flowing through the liquid flow pipe 26. When the sensor 32 detects that the adsorbent C is contained in the desorbed liquid E ′, the valve 30 is closed. Thereby, the outflow of the adsorbent C from the cartridge 100 can be prevented.

  Furthermore, in the regenerating apparatus 2, the capturing device 31 may be used to prevent the adsorbent C flowing through the liquid passage pipe 26 from flowing out. For example, when the adsorbent C is a magnetic material, a magnet can be used as the capturing device 31. When the size of the adsorbent C is larger than the size of the valuable material A, the valuable material A can be passed, but a filter that cannot pass the adsorbent C can be used as the capturing device 31. The adsorbent C captured by the capturing device 31 is put into the cartridge 100 together with the cleaning liquid E when another cartridge 100 is next connected to the connection portion 23 and the cleaning liquid E is injected. Can be used effectively.

  As described above, in the regenerator 2, the cleaning liquid E used for regeneration is injected into the cartridge 100 that stores the used adsorbent C ′ to be regenerated, and the cartridge 100 is tilted so that the desorption obtained by the regeneration process is performed. Only the liquid E ′ is discharged from the cartridge 100. Thereby, in the reproducing | regenerating apparatus 2, the adsorption effect of the adsorbent C can be reproduced | regenerated with an easy structure.

<< Modification 1 >>
Depending on the properties of the adsorbent C and the desorbed liquid E ′, the inclination of the cartridge 100, and the like, the boundary between the adsorbent C and the desorbed liquid E ′ may be inclined as shown in FIG. In such a case, the L-shaped tube 33 is slid in the direction B2 where the height of the boundary between the adsorbent C and the desorbed liquid E ′ is shallow. After the L-shaped tube 33 is slid, as shown in FIG. 6B, the tube port 33a of the L-shaped tube 33 is the boundary between the adsorbent C and the desorbed liquid E ′ with the rotation axis X2 as the axis. The desorbed liquid E ′ is discharged while being inclined until the height becomes h4. In this manner, by sliding the L-shaped tube 33, more desorbed liquid E ′ can be discharged from the cartridge 100.

  Instead of sliding the L-shaped tube 33 as shown in FIG. 6, when the boundary surface between the adsorbent C and the desorbed liquid E ′ is inclined, the cartridge 100 is inclined so as not to be inclined. Also good.

<< Modification 2 >>
When the boundary between the adsorbent C and the desorbed liquid E ′ is inclined due to the properties of the adsorbent C and the desorbed liquid E ′, the inclination of the cartridge 100, etc., as shown in FIG. 34 may be installed. By providing the weir 34 in this manner, the adsorbent C can be prevented from being mixed into the desorbed liquid E ′, and the adsorbent C can be prevented from flowing out of the cartridge 100.

<< Modification 3 >>
Further, instead of inclining the inclination of the L-shaped tube 33, as shown in FIG. 8, the connecting portion 23 for connecting the cartridge 100 can be rotated about the rotation axis X <b> 3 passing through the center of the cartridge 100. The cartridge 100 may be rotated so that the tube port 33a of the tube 33 is at the height h5 of the boundary surface between the adsorbent C and the desorbed liquid E ′. As shown in FIG. 8B, it is assumed that the height h5 of the boundary surface is higher than the tube port 33a of the L-shaped tube 33 and the desorbed liquid E ′ cannot be discharged sufficiently. In this case, as shown in FIG. 8C, the cartridge 100 is rotated α5 ° in the direction of A3 by the driving device (not shown) around the rotation axis X3. Thereby, since the positional relationship between the connecting portion 23 and the water conduit 26 is fixed, the desorbed liquid E ′ can be discharged with the tube port 33a of the L-shaped tube 33 aligned with the height h5 of the boundary surface.

<Third Embodiment>
As shown in FIG. 9, the regenerating apparatus 3 according to the third embodiment includes a connecting portion 23, a liquid passing pipe 26, a stirrer 28, a valve 30, a capturing device 31, a sensor 32, and a pressurizing device 36. And a straight pipe 37. Similar to the playback device 2 according to the second embodiment, this playback device 3 is also a device that can be used in the recovery system 1 described above with reference to FIG. This is a device for regenerating the adsorption function of the adsorbent C ′ after use.

  The pressurizing device 36 is a device that applies air pressure into the cartridge 100 connected to the connecting portion 23. Further, the straight pipe 37 is connected to the liquid passing pipe 26 so as to be slidable in the direction of B3.

  In this regenerating apparatus 3, when the cartridge 100 in which the used adsorbent C ′ is stored is connected to the connecting portion 23 and the valve 30 is opened, as shown in FIG. After use, the cleaning liquid E is injected into the adsorbent C ′. In the regenerating apparatus 3, the used adsorbent C ′ and the cleaning liquid E are stirred by the stirrer 28 while or after the cleaning liquid E is injected into the cartridge 100.

  When the movement of the liquid stops in the cartridge 100 after the adsorbent C ′ and the cleaning liquid E after use are stirred, the layer of the adsorbent C and the adsorbent C are contained in the cartridge 100 as shown in FIG. 9B. A layer of the desorbing liquid E ′ located on the other layer.

  As shown in FIG. 9B, when the adsorbent C layer and the desorbed liquid E ′ layer are separated in the cartridge 100, the regenerating device 3 applies pressure to the cartridge 100 with the pressurizing device 36. . At this time, the valve 30 is opened. In the reproducing apparatus 3, the desorbed liquid E ′ is discharged from the liquid flow pipe 26 when pressure is applied to the cartridge 100. That is, unlike the regenerator 2, the regenerator 3 does not need to tilt the cartridge 100 when discharging the desorbed liquid E ′.

  Here, in the regenerator 3, the pipe port 37a of the straight pipe 37 is positioned in the vicinity of the boundary surface between the adsorbent C and the desorbed liquid E ′ by driving means (not shown) before or while discharging. Then, the straight pipe 37 is slid in the direction of B3. Thereby, the discharge rate of the desorbed liquid E ′ from the cartridge 100 can be improved.

  Also in the reproducing apparatus 3, the trapping device 31 and the sensor 32 are used to prevent the adsorbent C from being discharged from the cartridge 100.

  As described above, in the regeneration device 3, the cleaning liquid E used for regeneration is injected into the cartridge 100 storing the post-use adsorbent C ′ to be regenerated, and pressure is applied to the cartridge 100 to obtain the regeneration process. Only the detachment liquid E ′ is discharged from the cartridge 100. Thereby, in the reproducing | regenerating apparatus 3, the adsorption effect of the adsorbent C can be reproduced | regenerated with an easy structure.

<Fourth embodiment>
Subsequently, a reproduction method according to the fourth embodiment will be described with reference to FIGS. 10 and 11. FIG. 10 shows the relationship between the number of cleanings of the used adsorbent C ′ using the cleaning liquid E in the regenerator 2 or the regenerator 3 and the desorption rate of the valuable material A from the used adsorbent C ′ in each cleaning. ing. FIG. 10 shows an example in which the post-use adsorbent C ′ in one cartridge 100 is washed four times. In the example shown in FIG. 10, the desorption of the valuable material A from the adsorbent C ′ after use was about 65% in the first cleaning, whereas it is close to 100% after four cleanings. It can be seen that the valuable material A could be detached.

  This is because, when the post-use adsorbent C ′ is washed with the cleaning liquid E, the concentration of the valuable material A at the boundary surface between the post-use adsorbent C ′ and the cleaning liquid E is in equilibrium. This is because the desorption of the valuable material A apparently stops (the desorption amount and the absorption amount are balanced), and beyond that, the valuable material A cannot be desorbed even if stirring is continued. Therefore, in order to improve the desorption rate of the valuable material A from the adsorbent C ′ after use, it is desirable to repeat the cleaning a plurality of times as shown in FIG.

  When the cleaning is repeated a plurality of times in the regenerator 2 or the regenerator 3, the amount of the cleaning liquid used is increased when a new cleaning liquid E is used every time. Therefore, it is desirable to repeatedly use the same cleaning liquid a plurality of times. FIG. 11 shows an example of using the cleaning liquid E when the post-use adsorbent C ′ is repeatedly cleaned four times.

  The desorbed liquid E ′ obtained by cleaning the post-use adsorbent C ′ that is cleaned for the first time contains a large amount of valuable material A (heavy pollution). Therefore, in order to use the heavy pollutant desorbing liquid E ′ as the cleaning liquid E next, a regeneration process for separating the valuable substance A from the desorbing liquid E ′ is performed and newly used after the regeneration. The method for regenerating the desorbed liquid E ′ may be a commonly used method such as a distillation method using a difference in boiling points. In addition, when it cannot reproduce | regenerate, you may utilize the new washing | cleaning liquid E.

  In addition, the post-use adsorbent C ′ that has been washed once has a smaller amount of valuable material A adsorbed than the post-use adsorbent C ′ that has not been washed once. The desorbed liquid E ′ obtained by washing the post-adsorbent C ′ contains less valuable material A than the desorbed liquid E ′ obtained by the first washing (medium contamination). Therefore, the desorbed liquid E ′ can be used for cleaning the post-use adsorbent C ′ that adsorbs a larger amount of valuable material A than the post-use adsorbent C ′ cleaned this time. That is, the medium-contaminated desorption liquid E ′ can be used as the cleaning liquid E for the post-use adsorbent C ′ that has not been subjected to the cleaning process.

  Furthermore, since the post-use adsorbent C ′ washed twice has less amount of valuable material A adsorbed than the post-use adsorbent C ′ washed once, the post-use adsorbent C ′ washed after the third wash The desorbed liquid E ′ obtained by cleaning the adsorbent C ′ contains less valuable material A than the desorbed liquid E ′ obtained by the second cleaning (light contamination). Therefore, the desorbed liquid E ′ can be used for cleaning the post-use adsorbent C ′ that adsorbs a larger amount of valuable material A than the post-use adsorbent C ′ cleaned this time. That is, the lightly polluted desorbing liquid E ′ can be used as the cleaning liquid E for the post-use adsorbent C ′ that has been cleaned once.

  In addition, the post-use adsorbent C ′ washed three times has a smaller amount of valuable material A adsorbed than the post-use adsorbent C ′ washed twice, so that the post-use adsorbent C ′ after the fourth wash The desorbed liquid E ′ obtained by washing the adsorbent C ′ contains less valuable material A than the desorbed liquid E ′ obtained by the third washing (fine contamination). Therefore, the desorbed liquid E ′ can be used for cleaning the post-use adsorbent C ′ that adsorbs a larger amount of valuable material A than the post-use adsorbent C ′ cleaned this time. That is, the slightly contaminated desorbing liquid E ′ can be used as the cleaning liquid E for the post-use adsorbent C ′ that has been washed twice.

  In this way, when the cleaning is repeated a plurality of times, a new cleaning liquid may be used for the final cleaning, and in an earlier stage, the used adsorbent C has a smaller amount of valuable material A adsorbed than the previous cleaning. Can be used for 'washing. That is, as shown in FIG. 11, when the cleaning of the adsorbent C ′ after use in one cartridge 100 is repeated four times, the desorbed liquid E ′ obtained by the fourth cleaning is used as the third cleaning liquid E. The desorption liquid E ′ obtained by the third washing is the second washing liquid E, the desorption liquid E ′ obtained by the second washing is the first washing liquid E, and obtained by the first washing. The released liquid E ′ is used as the first cleaning liquid E after the regeneration process. In this way, the number of regenerations of the desorbing liquid E ′ can be reduced, and the usage amount of the cleaning liquid E can be reduced and effectively used.

  Although the embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, rewrites, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Recovery system 10a, 10b ... Water supply pump 11 ... Reaction tank 12 ... Stirrer 13 ... Injection apparatus 14 ... Drive apparatus 15 ... Centrifugal sedimentation device 16 ... Adsorbent discharge pipe 17 ... Treated water discharge pipe 100, 100c ... Cartridge L1, L2 ... Lines 2, 3 ... Reproducing device 21 ... Stand 22 ... Table 23 ... Connector 24 ... Rotating shaft 25 ... Rotating mechanism 26 ... Liquid passage 27 ... Sensor 28 ... Agitator 29 ... Movement mechanism 30 ... Valve 31 ... Capture device 32 ... Sensor 33 ... L-shaped pipe 34 ... Weir 36 ... Pressure device 37 ... Straight pipe A ... Valuable material B ... Drainage C ... Adsorbent C '... Adsorbent after use D ... Treatment water E ... Cleaning liquid E' ... Desorption liquid

Claims (7)

A regeneration device that regenerates the adsorption function of the adsorbent by separating the target substance from the adsorbent obtained by adsorbing the target substance of the wastewater,
A liquid pipe for injecting a cleaning liquid for separating the target substance from the adsorbent into the container in which the adsorbent that adsorbs the target substance exists, and discharging the target substance separated from the container and the used cleaning liquid;
A connection part connected to the container so that the liquid pipe is connected and the tube port of the liquid pipe is located inside the container;
When the adsorbent layer and the used cleaning liquid layer containing the target substance are formed in the container by the injection of the cleaning liquid, the container is placed so that the port is located above the adsorbent layer. A rotating mechanism for tilting;
A playback apparatus comprising:   The water pipe is formed in an L shape so that the pipe opening faces the side surface of the container, and the pipe opening matches the bottom surface of the used cleaning liquid layer when discharging the target substance and the used cleaning liquid. The reproducing apparatus according to claim 1, wherein the reproducing apparatus is inclined.   The said connection part rotates the said container inclined so that the said pipe opening may match the bottom face of the layer of the used cleaning liquid when discharging the target substance and the used cleaning liquid. The reproducing apparatus as described. A regeneration device that regenerates the adsorption function of the adsorbent by separating the target substance from the adsorbent obtained by adsorbing the target substance of the wastewater,
A liquid pipe for injecting a cleaning liquid for separating the target substance from the adsorbent into the container in which the adsorbent that adsorbs the target substance exists, and discharging the target substance separated from the container and the used cleaning liquid;
When the adsorbent layer and the used cleaning liquid layer containing the target substance are formed in the container by the injection of the cleaning liquid, pressure is applied to the container and the used cleaning liquid containing the target substance is discharged by the pressure. A pressurizing device,
A playback apparatus comprising: A regeneration method for regenerating the adsorption function of the adsorbent by separating the target substance from the adsorbent obtained by adsorbing the target substance of wastewater,
Injecting a cleaning liquid for separating the target substance from the adsorbent into a container in which the adsorbent that has adsorbed the target substance exists;
Discharging the target substance separated from the container and the cleaning liquid after use,
Repeat the cleaning solution in the container several times,
A regeneration method, wherein a used cleaning liquid containing an amount of a target substance smaller than an amount of a target substance adsorbed by an adsorbent stored in the container can be reused. A recovery system that adsorbs and recovers valuable materials in the wastewater with the adsorbent injected into the wastewater,
An injection device for injecting the adsorbent stored in the movable container into the waste water;
A separation device that separates the waste water into which the adsorbent has been injected into treated water and valuable material adsorbed by the adsorbent, and discharges the adsorbent and valuable material separated in a movable container;
The regeneration device according to any one of claims 1 to 4, which regenerates the adsorption function of the adsorbent in a container in which the adsorbent and valuables discharged from the separation device are stored.
A collection system characterized by that. The container is
When the adsorbent becomes empty after injecting the adsorbent in the injection device, it is connected to the separation device and used to discharge the adsorbent and valuables,
The recovery system according to claim 6, wherein when the adsorbent is regenerated by the regenerator, the adsorbent is connected to the injection device and used for injecting the adsorbent.

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