CN115121296A - Method for treating heavy organic matter pollution of anion exchange resin - Google Patents
Method for treating heavy organic matter pollution of anion exchange resin Download PDFInfo
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Abstract
The invention discloses a method for treating heavy organic pollution by anion exchange resin, which comprises the following steps: s1, filling the resin body with organic pollutants into the inner tank body, adding saturated salt solution with the temperature of 40 ℃ into the inner tank body through the adding port, soaking for 12 hours, simultaneously connecting the water inlet pipe with a constant-temperature water source with the temperature of 40 ℃ and flowing through the water bath pipe, and heating the saturated salt solution in a constant-temperature water bath with the temperature of 40 ℃; s2, after the soaking time is up, adding potassium permanganate and microporous silica gel particles into saturated salt water, and continuing soaking for 3-5 hours; the method is characterized in that anion exchange resin used for preparing desalted water through industrial water treatment is used for a long time, and after the desalted water is heavily polluted by organic matters, the anion exchange resin is soaked and cleaned by using a medicament, so that the method has an obvious recovery effect on the ion exchange resin heavily polluted by the organic matters.
Description
Technical Field
The invention belongs to the technical field of organic matter pollution treatment, and particularly relates to a method for treating heavy organic matter pollution by anion exchange resin.
Background
Organic substances mainly exist in humic acid, micelle organic impurities, high molecular compounds, polybasic organic carboxylic acid and the like in natural water, the organic substances are usually negatively charged in water and become main substances polluted by anion exchange resin, the organic substances are adsorbed on the resin and occupy or combine active groups on the resin, so that the alkalinity of the strongly basic active groups of the resin is reduced and the resin is degraded, the exchange capacity of the resin is reduced, the amount of flushing water used in the regeneration process is increased after the ion exchange resin is polluted by the organic substances, the effluent conductivity is increased, the pH value is gradually reduced, and the anion bed exchange capacity is comprehensively reduced.
The ion exchange resin has wide application in the fields of water softening, desalting, environment restoration, wastewater treatment, metallurgy, chromatographic analysis, biological separation, catalysis and the like. However, the problem of pollution of ion exchange resin and the problem of solid pollution caused by a large amount of discarded resin become troublesome problems in the current water treatment process of ion exchange resin.
Chinese patent application No. 201720572562.2 discloses a resin cleaning device for polyethylene glycol recovery, including resin cleaning tank, fine filtration jar and coarse filtration jar, the upper end of fine filtration jar and coarse filtration jar all threaded connection have an upper cover plate, be equipped with microfiltration membrane and micro-permeable membrane from top to bottom in the inner chamber of resin cleaning tank in proper order, the utility model discloses structural design is ingenious, and easy operation makes things convenient for people to use, utilizes fine filtration jar and coarse filtration jar, conveniently carries out coarse filtration, fine filtration to the solution after the cutting, and then reduces the piece or the impurity in the solution; among the above-mentioned prior art, wash the resin that pollutes through the mode of carefully filtering jar and roughly filtering jar filtration, washing efficiency is low, and clean degree is relatively poor, and the number of times that the circulation was washed is many, and is long consuming time.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a method for treating the heavy organic pollution of anion exchange resin, which comprises the steps of introducing alternating current into an electromagnet, a magnetic field with a direction changing periodically is formed around the electromagnet, the magnetic field with a changeable period drives the magnetic block to vibrate, the magnetic block forms sound waves with a frequency of more than 20000Hz in the vibration process, the sound waves are transmitted in the saturated salt water, the saturated salt water generates cavitation effect to form micro-bubbles, the local high temperature and high pressure formed by the micro-bubbles destroy the molecular structure of the organic matter to separate the organic matter from the resin body, and the charged electric ions on the surfaces of the micro-bubbles are electrically neutralized with the organic matter colloid, reduce the van der waals' force between the organic matter molecule, be convenient for adsorb, destabilize through micropore silica gel granule and condense, effectively promote the regeneration capacity of resin.
The invention provides the following technical scheme:
a method for treating heavy organic pollution of anion exchange resin comprises the following steps: s1, filling the resin body with organic pollutants into the inner tank body, adding saturated salt solution with the temperature of 40 ℃ into the inner tank body through the adding port, soaking for 12 hours, simultaneously connecting the water inlet pipe with a constant-temperature water source with the temperature of 40 ℃ and flowing through the water bath pipe, and heating the saturated salt solution in a constant-temperature water bath with the temperature of 40 ℃;
s2, after the soaking time is up, adding potassium permanganate and microporous silica gel particles into saturated salt water, and continuing soaking for 3-5 hours;
s3, when the soaking is continued, alternating current is conducted to the electromagnet, a magnetic field with periodically changed direction is formed around the electromagnet, the periodically changed magnetic field drives the magnetic block to vibrate, the magnetic block forms sound waves with frequency larger than 20000Hz in the vibration process, the saturated salt water generates cavitation effect in the transmission process of the sound waves in the saturated salt water, micro bubbles are formed, and local high temperature and high pressure formed by the micro bubbles destroy the molecular structure of the organic matter and enable the organic matter to be separated from the resin body, on the other hand, charged ions on the surfaces of the micro bubbles are electrically neutralized with organic matter colloid, so that Van der Waals force among organic matter molecules is reduced, and the adsorption, destabilization and condensation are facilitated through the microporous silica gel particles;
s4, pass through the discharge port drainage with saturated salt solution, add the mouthful connection and remove the brine pipe, wash the resin body with demineralized water, wash the in-process and inwards inject compressed air and wash to the internal jar, the clearance of the resin body of being convenient for, wash the in-process and take a sample to the washing water, wash to the play water limpid, the discharge of free impurities stops to wash, carries out resin body regeneration.
Preferably, in step S1, the preparation of saturated saline solution is performed by using the principle that the solubility of salt increases with the increase of water temperature, the demineralized water for drug preparation is heated to 55 ℃ in advance by the heating tank, the concentration of the saturated saline solution is 26.47% at 20 ℃, the required salt dosage is calculated according to the volume of the alkaline storage tank before the preparation, the water temperature of the heating tank is heated to about 55 ℃ in advance, the salt is manually added by the ejector to be mixed with the effluent of the heating tank and is ejected into the alkaline storage tank, and the preparation of the drug is completed when the demineralized water dosage of the heating tank reaches the calculated dosage after the salt addition is completed. The prepared salt water is circulated again through a circulating pump to ensure that the salt is fully dissolved; the temperature of the prepared solution is about 45 ℃ due to heat consumption in the preparation process; the prepared solution is pumped into the inner tank body by a lift pump, and then the temperature is basically about 40 ℃, and the solution is soaked.
Preferably, the device for treating severe organic matter pollution by anion exchange resin comprises an outer tank body, wherein an inner tank body is arranged in the outer tank body, and a vibration mechanism is arranged between the outer tank body and the inner tank body and vibrates to form ultrasonic waves, so that the saturated saline water forms a cavitation effect and plays a role in separating organic pollutants on a resin body; the upper part and the lower part of the vibration mechanism are respectively provided with a water bath pipe with a spiral structure, the water bath pipes are wound on the inner tank body, the upper end of each water bath pipe is connected with a water outlet pipe, and the lower end of each water bath pipe is connected with a water inlet pipe; the top of the inner tank body is provided with a cover body, the central position of the cover body is embedded and connected with an adding port, and the bottom of the inner tank body is provided with a discharge port.
Preferably, the vibration mechanism includes the casing, the intermediate position at the lateral wall of the outer jar of body is connected to the casing, the inside of casing is equipped with the electro-magnet, the electro-magnet is connected with alternating current power supply, be equipped with the magnetic block between the inner tank body and the outer jar of body, the electro-magnet lets in the magnetic field of periodic variation after the alternating current, drives the magnetic block and is reciprocating motion, the magnetic block both ends all are connected with the connecting rod, and the other end of connecting rod is equipped with the buffering body, increases the vibration frequency of magnetic block through the buffering body that sets up.
Preferably, the buffer body comprises a pipe body, a through groove is formed in one side, close to the connecting rod, of the pipe body, the connecting rod slides in the through groove, the connecting rod is connected with a moving block, the moving block is arranged inside the pipe body and is in clearance sliding connection with the inner wall of the pipe body, guide pipes are connected to two sides of the moving block, a guide rod is arranged at the other end of each guide pipe and is in sliding connection with the guide pipes, a piston block is connected to the other end of each guide rod, and the piston block is in sealing sliding connection with the inner wall of the pipe body.
Preferably, two first sliding grooves are symmetrically formed in the inner side wall of the guide pipe, a limiting block is arranged at one end, located inside the guide pipe, of the guide rod, two ends of the limiting block are connected with first sliding blocks, and the first sliding blocks are connected with the second sliding blocks in a sliding mode in a matched mode; the outer side wall of the guide pipe is sleeved with a first spring, one end of the first spring is connected with a moving block, and the other end of the first spring is connected with a piston block.
Preferably, the pipe body is close to the position at both ends and all is equipped with the baffle, one side that the piston piece was kept away from to the baffle forms the air chamber, the central point of baffle puts and has seted up the through-hole, the through-hole is equipped with the valve, the valve sets up the one side that is close to the piston piece at the baffle, and the valve rotates with the baffle through the hinge that sets up to be connected.
Preferably, the vibration mechanism further comprises an adjusting mechanism, the adjusting mechanism comprises a box body, one end of the box body is connected with the outer wall of the outer tank body, a lead screw penetrates through one end of the box body, the lead screw is connected with the box body in a matched and rotating mode through an internal thread, one end of the lead screw is connected with a handle, one end of the lead screw, which is located inside the box body, is provided with an inner screwed pipe in a matched and rotating mode, and the lead screw is connected with the inner screwed pipe in a matched and rotating mode; the inner spiral pipe is connected with a connecting block, the two sides of the connecting block are both connected with second sliding blocks, second sliding grooves are symmetrically formed in the inner side wall of the box body, and the second sliding grooves are connected with the second sliding blocks in a sliding mode in a matched mode.
Preferably, the one end that interior screwed pipe was kept away from to the connecting block is connected with the carriage release lever, the carriage release lever runs through outer jar of body lateral wall, and carriage release lever and outer jar of body clearance sliding connection, the other end of carriage release lever is connected with the second spring, the other end and the magnetism piece of second spring are connected.
Preferably, when ultrasonic waves are formed on the resin through the vibration mechanism to cause cavitation of the salt solution, a large number of nano-level micro bubbles are generated in the salt solution, the size of the bubbles is small, the specific surface area is large, the water-gas exchange efficiency is effectively increased, the pressure in the bubbles is large, the reaction efficiency of potassium permanganate and organic matters is increased, the potassium permanganate oxidizes and destroys a coating in an organic matter colloid, the colloid destabilization is promoted, the humus of macromolecular organic matters such as humic acid is enhanced and chelated with each other, and the coagulation with microporous silica gel particles is accelerated; meanwhile, the potassium permanganate generates compact floc with nascent manganese dioxide as a core in the oxidation process, the manganese dioxide has a huge surface area, and the removal of trace organic matters is accelerated through the adsorption and catalysis effects. The microbubble formed by the vibration mechanism promotes the reaction efficiency of potassium permanganate, destabilizes organic colloid, further forms flocculation with microporous silica gel particles, and further improves the decomposition and removal efficiency of organic pollutants through the mutual combined action.
During soaking, the mass ratio of potassium permanganate added into saturated salt solution to the microporous silica gel particles meets (1-3): (3-5); when the mass ratio of potassium permanganate added into saturated salt solution to microporous silica gel particles is 1: 5. 1: 2. 3: 5, the ratio of the technical scheme to pure saturated salt water is as follows:
the results of the resin tests in the above table are the maximum regeneration capacity in mmol/g; from the table above, compared with the case of soaking with pure saturated salt solution, the vertical regeneration capacity after adding potassium permanganate is obviously improved, and when the mass of the potassium permanganate and the microporous silica gel particles is close to 1:2, the regeneration capacity of the resin is the largest, and the regeneration effect is the best.
In addition, when the magnetic block vibrates, in order to improve the vibration frequency of the magnetic block and effectively reduce the vibration amplitude of the magnetic block, the vibration amplitude of the magnetic block in the vibration process is buffered through the arranged buffer body, meanwhile, the arranged first spring provides resilience for the magnetic block, the kinetic energy of the magnetic block in the rebound process is increased, and therefore the vibration frequency of the magnetic block is improved; meanwhile, air at two ends of the tube body is compressed through the piston plate, the common reaction force of the first spring and the magnetic block is combined through the expansion force of compressed air, the reaction and the piston block, the action and the magnetic block are further improved, the vibration frequency of the magnetic block is further improved, ultrasonic waves are facilitated to be formed, micro bubbles and cavitation effects are formed, a better synergistic effect is achieved, the effect of decomposing and removing organic pollutants is achieved, in order to further improve the effect that bubbles formed by a vibration mechanism act together with potassium permanganate and microporous silica gel particles, the effect of removing the organic pollutants is achieved, the vibration frequency f of the magnetic block is satisfied, and f is 1/2.p (m/k); in the above formula, p is the motion period of the magnetic block and has the unit of s; m is mass, and the unit g and k are the progress coefficient of the first spring; further, the elastic force F1 of the first spring and the elastic force F2 of the compressed air satisfy the following conditions with the vibration frequency F of the magnetic block: f1+ F2 δ (2pfm) · x; x is the vibration amplitude of the magnetic block, and the unit is cm, and the units of F1 and F2 are N; delta is an adjusting coefficient and has a value range of 0.36-1.35.
In addition, when the magnetic block vibrates, the connecting rod moves left and right in the through groove in the side wall of the tube body, when the connecting rod drives the moving block to move, the first spring compresses, the guide rod moves relative to the first sliding groove through the arranged first sliding block, the guide rod contracts into the guide pipe, the piston block compresses air in the tube body, the air valve is under the action of pressure to form a closed state, the piston block is under the reaction force of air pressure, and the reaction force provided by the first spring is combined to buffer the magnetic block well, so that the magnetic block is prevented from being damaged due to overlarge amplitude and collision, and the use stability is improved; meanwhile, the kinetic energy is added to the magnetic plate by utilizing the reaction force of the air and the reaction force of the second spring, so that the vibration frequency of the magnetic plate is improved; when the piston plate moves rightwards, the guide rod and the guide pipe are compressed, gas in the pipe body is under the action of negative pressure, the valve is opened, the gas enters the pipe body from the air chamber to provide sufficient air for secondary compression, when the vibration of the magnetic plate stops, the hinge is in a natural state, the gas in the pipe body enters the air chamber through the through hole, and the air pressure in the air chamber and the pipe body is balanced.
In addition, in the vibration process of the magnetic block, in order to better control the vibration frequency of the magnetic block, one method is to change the intensity of a magnetic field by changing the magnitude of alternating voltage of an electromagnet so as to sequentially achieve the aim of changing the vibration frequency of the magnetic plate; in addition, through the arranged adjusting mechanism, when the handle is rotated clockwise, the screw rod and the inner spiral pipe rotate relatively, the inner spiral pipe drives the connecting block to move relatively through the second sliding block, and simultaneously drives the moving rod to compress the second spring, so that the hardness of the second spring is increased, stronger kinetic energy is provided for the second spring, and the vibration frequency of the magnetic block is increased when the magnetic block rebounds; in a similar way, when anticlockwise turning handle, the lead screw and interior screwed pipe take place relative rotation, interior screwed pipe drives the connecting block and takes place relative movement through the second slider, it stretches the second spring to drive the movable rod simultaneously, thereby reduce the hardness of second spring, reduce the kinetic energy that the second spring provided, when the magnetism piece rebounds, reduce its vibration frequency, in the operation of reality, automatic control has not only been improved, and in can the operation, in time carry out manual control and adjust, the vibration amplitude and the vibration frequency of control magnetism piece, promote the security, promote the regeneration capacity of resin.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention relates to a method for treating heavy organic matter pollution of anion exchange resin, which comprises the steps of introducing alternating current into an electromagnet, forming a magnetic field with periodically changed direction around the electromagnet, driving a magnetic block to vibrate by the periodically changed magnetic field, forming sound waves with the frequency more than 20000Hz in the vibration process of the magnetic block, generating cavitation effect on saturated salt water in the transmission process of the sound waves in saturated salt water to form micro-bubbles, and damaging the molecular structure of organic matters to separate the organic matters from a resin body on one hand, and electrically neutralizing charged electric ions on the surfaces of micro-bubbles and organic matter colloid on the other hand, so that Van der Waals force among organic matter molecules is reduced, the adsorption and destabilization condensation are conveniently carried out through microporous silica gel particles, and the regeneration capacity of the resin is effectively improved.
(2) The invention relates to a method for treating heavy organic pollution of anion exchange resin, which promotes the reaction efficiency of potassium permanganate by micro bubbles formed by a vibration mechanism, destabilizes organic colloid, further forms flocculation with microporous silica gel particles, and further improves the decomposition and removal efficiency of organic pollutants by the mutual combined action of the micro bubbles and the microporous silica gel particles; and when the mass of the potassium permanganate and the microporous silica gel particles is close to 1:2, the regeneration capacity of the resin is the maximum, and the regeneration effect is the best.
(3) The invention relates to a method for treating severe organic matter pollution of anion exchange resin, which comprises the steps of buffering the vibration amplitude of a magnetic block in the vibration process through a set buffer body, providing rebound force for the magnetic block through a set first spring, increasing the kinetic energy of the magnetic block in the rebound process, and further improving the vibration frequency of the magnetic block; simultaneously through the air at piston plate compression body both ends, through compressed gas's bulging force, reaction and piston block combine first spring common reaction force between them, effect and magnetic block, further promote the vibration frequency of magnetic block, help forming the ultrasonic wave, form microbubble and cavitation effect, better plays the synergism, reaches the effect that organic pollutant decomposes and clears away.
(4) According to the method for treating the heavy organic matter pollution of the anion exchange resin, disclosed by the invention, the effect of removing organic pollutants and the effect of regenerating the resin are improved by limiting the relation between the elastic force of the first spring, the elastic force of compressed air and the vibration frequency of the magnetic block and improving the combined action of bubbles, potassium permanganate and microporous silica gel particles formed by a vibration mechanism.
(5) The invention relates to a method for treating severe organic matter pollution of anion exchange resin, wherein when a magnetic block vibrates, a connecting rod moves left and right in a through groove on the side wall of a tube body, when the connecting rod drives a moving block to move, a first spring compresses, a guide rod moves relative to a first sliding groove through a first sliding block, the guide rod contracts into a guide tube, a piston block compresses air in the tube body, an air valve is under the action of pressure to form a closed state, the piston block is under the action of the reaction force of the air pressure and combines the reaction force provided by the first spring to buffer the magnetic block well, the magnetic block is prevented from being damaged due to overlarge amplitude and collision, and the use stability is increased.
(6) According to the method for treating the heavy organic pollution of the anion exchange resin, disclosed by the invention, the vibration frequency of the magnetic block is changed by setting a reasonable adjusting mode, so that in actual operation, not only is automatic control improved, but also manual control and adjustment can be carried out in time in operation, the vibration amplitude and the vibration frequency of the magnetic block are controlled, the safety is improved, and the regeneration capacity of the resin is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a flow chart of the method of the present invention.
Fig. 2 is an overall schematic view of the apparatus of the present invention.
Fig. 3 is a schematic view of the internal structure of the apparatus of the present invention.
Fig. 4 is a schematic view of the vibration mechanism of the present invention.
FIG. 5 is a schematic view of the structure of the buffer body of the present invention.
FIG. 6 is a partially enlarged structural view of the buffer body of the present invention.
FIG. 7 is a schematic view of the catheter and guide rod connection of the present invention.
Fig. 8 is a schematic view of the adjustment mechanism of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings. It is to be understood that the described embodiments are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive efforts based on the embodiments of the present invention, are within the scope of protection of the present invention.
The first embodiment is as follows:
referring to fig. 1, a method for treating heavy organic pollutants by anion exchange resin comprises the following steps: s1, filling the resin body 9 with organic pollutants into the inner tank body 2, adding saturated salt solution with the temperature of 40 ℃ into the inner tank body 2 through the adding port 7, soaking for 12 hours, simultaneously connecting the water inlet pipe 5 with a constant-temperature water source with the temperature of 40 ℃ to flow through the water bath pipe 3, and heating the saturated salt solution in a constant-temperature water bath with the temperature of 40 ℃;
s2, after the soaking time is up, adding potassium permanganate and microporous silica gel particles into saturated salt water, and continuing to soak for 3-5 hours;
s3, when the soaking is continued, alternating current is conducted to the electromagnet 11, a magnetic field with a direction changing periodically is formed around the electromagnet 11, the periodically changing magnetic field drives the magnetic block 12 to vibrate, the magnetic block 12 forms sound waves with the frequency larger than 20000Hz in the vibration process, the saturated salt water generates cavitation effect in the transmission process of the sound waves in the saturated salt water, micro-bubbles are formed, and the local high temperature and high pressure formed by the micro-bubbles can destroy the molecular structure of the organic matter and separate the organic matter from the resin body 9, and the ionized electrons on the surfaces of the micro-bubbles are neutralized with organic matter colloid electricity, so that the van der Waals force between the organic matter molecules is reduced, and the adsorption, destabilization and condensation through the microporous silica gel particles are facilitated;
s4, pass through discharge port 8 drainage with saturated salt solution, add mouthful 7 and connect the demineralized water pipe, wash resin body 9 with demineralized water, wash the in-process and let in compressed air in to the inner tank body 2 and wash, the resin body 9 of being convenient for clear away, wash the in-process and sample the washing water, wash to the play water limpid, the impurity-free is discharged, the stop is washed, carries out resin body 9 regeneration.
In step S1, the saturated saline solution is prepared by using the principle that the solubility of salt increases with the increase of water temperature, the demineralized water for dispensing is heated to 55 ℃ in advance by a heating tank, the concentration of the saturated saline solution is 26.47% at 20 ℃, the required salt dosage is calculated according to the volume of an alkali storage tank before the preparation, the water temperature of the heating tank is heated to about 55 ℃ in advance, the salt is manually added by an injector to be mixed with the outlet water of the heating tank and is injected into the alkali storage tank, and the preparation of the medicament is completed when the desalted water of the heating tank reaches the calculated amount after the salt addition is completed. The prepared salt water is circulated again through a circulating pump to ensure that the salt is fully dissolved; the temperature of the prepared solution is about 45 ℃ due to heat consumption in the preparation process; the prepared solution is pumped into the inner tank body 2 by a lift pump, and then the temperature is basically about 40 ℃, and the solution is soaked.
The second embodiment:
referring to fig. 2-7, on the basis of the first embodiment, an apparatus for treating severe organic contamination by anion exchange resin comprises an outer tank 1, an inner tank 2 is disposed inside the outer tank 1, and a vibration mechanism is disposed between the outer tank 1 and the inner tank 2, and vibrates to form ultrasonic waves, so that a saturated saline solution forms a cavitation effect to separate organic contaminants on a resin body 9; the water bath pipes 3 with spiral structures are arranged above and below the vibration mechanism, the water bath pipes 3 are wound on the inner tank body 2, the upper ends of the water bath pipes 3 are connected with water outlet pipes 4, and the lower ends of the water bath pipes 3 are connected with water inlet pipes 5; the top of the inner tank body 2 is provided with a cover body 6, the center position of the cover body 6 is embedded and connected with an adding port 7, and the bottom of the inner tank body 2 is provided with a discharge port 8.
The vibration mechanism includes casing 10, casing 10 is connected at the intermediate position of the lateral wall of the outer jar of body 1, the inside of casing 10 is equipped with electro-magnet 11, electro-magnet 11 is connected with alternating current power supply, be equipped with magnetic block 12 between the inner jar of body 2 and the outer jar of body 1, electro-magnet 11 lets in the magnetic field of formation periodic variation after the alternating current, drives magnetic block 12 and is reciprocating motion, magnetic block 12 both ends all are connected with connecting rod 13, and the other end of connecting rod 13 is equipped with buffering body 14, increases the vibration frequency of magnetic block 12 through the buffering body 14 that sets up.
The buffer body 14 includes a tube body 141, a through groove is formed in one side of the tube body 141 close to the connecting rod 13, the connecting rod 13 slides in the through groove, the connecting rod 13 is connected with a moving block 142, the moving block 142 is arranged inside the tube body 141, the moving block 142 is in sliding connection with the inner wall of the tube body 141 in a gap, two sides of the moving block 142 are connected with guide tubes 143, guide rods 144 are arranged at the other ends of the guide tubes 143, the guide rods 144 are in sliding connection with the guide tubes 143, the other ends of the guide rods 144 are connected with piston blocks 146, and the piston blocks 146 are in sliding connection with the inner wall of the tube body 141 in a sealing manner.
Two first sliding grooves 1411 are symmetrically formed in the inner side wall of the guide pipe 143, a limiting block 1412 is arranged at one end, located inside the guide pipe 143, of the guide rod 144, two ends of the limiting block 1412 are connected with first sliding blocks 1413, and the first sliding blocks 1413 are in matched sliding connection with the second sliding blocks 156; the outer side wall of the guide tube 143 is sleeved with a first spring 145, one end of the first spring 145 is connected with the moving block 142, and the other end of the first spring 145 is connected with the piston block 146.
The positions, close to the two ends, of the pipe body 141 are provided with partition plates 147, one sides, far away from the piston block 146, of the partition plates 147 form air chambers 148, through holes 149 are formed in the center positions of the partition plates 147, air valves 1410 are arranged in the through holes 149, the air valves 1410 are arranged on the sides, close to the piston block 146, of the partition plates 147, and the air valves 1410 are connected with the partition plates 147 in a rotating mode through arranged hinges.
When ultrasonic waves are formed on the resin through the vibration mechanism to cause cavitation of the salt solution, a large number of nano-scale micro bubbles are generated in the salt solution, the size of the bubbles is small, the specific surface area is large, the water-gas exchange efficiency is effectively increased, the pressure in the bubbles is large, the reaction efficiency of potassium permanganate and organic matters is increased, potassium permanganate oxidizes and destroys a coating in an organic matter colloid, the colloid destabilization is promoted, the humus of macromolecular organic matters such as humic acid is enhanced and chelated with each other, and the coagulation with microporous silica gel particles is accelerated; meanwhile, the potassium permanganate generates nascent manganese dioxide in the oxidation process as a core compact floc, the manganese dioxide has a huge surface area, and the removal of trace organic matters is accelerated through the adsorption and catalysis effects. The microbubble formed by the vibration mechanism promotes the reaction efficiency of potassium permanganate, destabilizes organic colloid, further forms flocculation with microporous silica gel particles, and further improves the decomposition and removal efficiency of organic pollutants through the mutual combined action.
During soaking, the mass ratio of potassium permanganate added into saturated salt solution to microporous silica gel particles meets (1-3): (3-5); when the mass ratio of potassium permanganate added into the saturated salt solution to the microporous silica gel particles is 1: 5. 1: 2. 3: 5, the ratio of the technical scheme to pure saturated salt water is as follows:
the results of the resin tests in the above table are the maximum regeneration capacity in mmol/g; from the above table, it can be seen that the vertical regeneration capacity after adding potassium permanganate is significantly improved compared with the case of soaking with pure saturated salt solution, and when the mass of potassium permanganate and microporous silica gel particles is close to 1:2, the regeneration capacity of the resin is the largest, and the regeneration effect is the best.
Example three:
referring to fig. 8, on the basis of the first embodiment, the vibration mechanism further includes an adjusting mechanism 15, the adjusting mechanism 15 includes a box body 151, one end of the box body 151 is connected to an outer wall of the outer tank 1, one end of the box body 151 is provided with a screw rod 152 in a penetrating manner, the screw rod 152 is rotatably connected to the box body 151 through a set internal thread, one end of the screw rod 152 is connected to a handle 153, one end of the screw rod 152 located inside the box body 151 is provided with an internal screw pipe 154 in a matching manner, and the screw rod 152 is rotatably connected to the internal screw pipe 154 in a matching manner; the inner spiral pipe 154 is connected with a connecting block 155, the two sides of the connecting block 155 are both connected with second sliding blocks 156, second sliding grooves 157 are symmetrically formed in the inner side wall of the box body 151, and the second sliding grooves 157 are connected with the second sliding blocks 156 in a matched sliding mode.
One end of the connecting block 155, which is far away from the inner spiral pipe 154, is connected with a movable rod 158, the movable rod 158 penetrates through the side wall of the outer tank 1, the movable rod 158 is in clearance sliding connection with the outer tank 1, the other end of the movable rod 158 is connected with a second spring 159, and the other end of the second spring 159 is connected with the magnetic block 12.
In the vibration process of the magnetic block 12, in order to better control the vibration frequency of the magnetic block 12, one method is to change the intensity of the magnetic field by changing the magnitude of the alternating voltage introduced to the electromagnet 11, so as to sequentially achieve the purpose of changing the vibration frequency of the magnetic plate; in addition, through the arranged adjusting mechanism 15, when the handle 153 is rotated clockwise, the screw rod 152 and the inner screw pipe 154 rotate relatively, the inner screw pipe 154 drives the connecting block 155 to move relatively through the second sliding block 156, and simultaneously drives the moving rod 158 to compress the second spring 159, so that the hardness of the second spring 159 is increased, stronger kinetic energy is provided for the second spring 159, and the vibration frequency of the magnetic block 12 is increased when the magnetic block rebounds; similarly, when the handle 153 is rotated counterclockwise, the screw 152 and the inner screw pipe 154 rotate relatively, the inner screw pipe 154 drives the connecting block 155 to move relatively through the second slider 156, and simultaneously drives the moving rod 158 to stretch the second spring 159, thereby reducing the hardness of the second spring 159, reducing the kinetic energy provided by the second spring 159, and reducing the vibration frequency of the magnetic block 12 when the magnetic block rebounds.
Example four
On the basis of the first embodiment, when the magnetic block 12 vibrates, in order to increase the vibration frequency of the magnetic block 12 and effectively reduce the vibration amplitude of the magnetic block 12, the vibration amplitude of the magnetic block 12 during the vibration process is buffered by the arranged buffer 14, and meanwhile, the arranged first spring 145 provides a rebound force for the magnetic block 12, so that the kinetic energy of the magnetic block 12 during the rebound process is increased, and the vibration frequency of the magnetic block 12 is increased; meanwhile, the air at the two ends of the tube body 141 is compressed through the piston plate, the air is acted on the magnetic block 12 through the expansion force of the compressed gas and the reaction and piston block 146, the common reaction force of the first spring 145 and the magnetic block 12 is combined, the vibration frequency of the magnetic block 12 is further improved, ultrasonic waves are formed, micro bubbles and cavitation effects are formed, a better synergistic effect is achieved, the effect of decomposing and removing organic pollutants is achieved, in order to further improve the effect that the bubbles formed by the vibration mechanism and potassium permanganate and microporous silica gel particles act together to remove the organic pollutants, the vibration frequency f of the magnetic block 12 meets, and f is 1/2 & p (m/k); in the above formula, p is the movement period of the magnetic block 12, and the unit is s; m is the mass, and the unit g, k is the progression factor of the first spring 145; further, the elastic force F1 of the first spring 145 and the elastic force F2 of the compressed air satisfy the following relationship with the vibration frequency F of the magnetic block 12: f1+ F2 δ · (2pfm) · x; x is the vibration amplitude of the magnetic block 12 in cm, and F1 and F2 are in N; delta is an adjusting coefficient and has the value range of 0.36-1.35.
When the magnetic block 12 vibrates, the connecting rod 13 moves left and right in the through groove on the side wall of the tube body 141, when the connecting rod 13 drives the moving block 142 to move, the first spring 145 compresses, the guide rod 144 moves relative to the first sliding groove 1411 through the first sliding block 1413, the guide rod 144 contracts into the guide pipe 143, the piston block 146 compresses air in the tube body 141, the valve 1410 is under the action of pressure to form a closed state, the piston block 146 is under the action of the reaction force of the air pressure and combines the reaction force provided by the first spring 145 to form good buffer for the magnetic block 12, so that the magnetic block 12 is prevented from being damaged due to overlarge amplitude and collision, and the use stability is increased; simultaneously, the reaction force of the air and the reaction force of the second spring 159 are utilized to add kinetic energy to the magnetic plate, so that the vibration frequency of the magnetic plate is increased; when the piston plate moves rightwards, the guide rod 144 and the guide pipe 143 are compressed, air in the tube body 141 is subjected to negative pressure, the valve 1410 is opened, the air enters the tube body 141 from the air chamber 148 to provide sufficient air for secondary compression, when vibration of the magnetic plate stops, the hinge is in a natural state, the air in the tube body 141 enters the air chamber 148 through the through hole 149, and the air pressure in the air chamber 148 and the air pressure in the tube body 141 are balanced.
The device obtained by the technical scheme is a method for treating the heavy organic pollution of the anion exchange resin, alternating current is introduced into the electromagnet, a magnetic field with the direction changing periodically is formed around the electromagnet, the magnetic field with the periodically changing direction drives the magnetic block to vibrate, the magnetic block forms sound waves with the frequency larger than 20000Hz in the vibration process, the saturated saline water generates cavitation effect in the transmission process of the sound waves in the saturated saline water to form micro-bubbles, and the local high temperature and high pressure formed by the micro-bubbles can destroy the molecular structure of the organic matters and enable the organic matters to be separated from the resin body, on the other hand, the charged electric ions on the surfaces of the micro-bubbles are electrically neutralized with organic matter colloid, so that the van der Waals force between the organic matter molecules is reduced, the adsorption and the destabilization condensation of the micro-porous silica gel particles are facilitated, and the regeneration capacity of the resin is effectively improved. Micro bubbles formed by the vibration mechanism promote the reaction efficiency of potassium permanganate, destabilize organic colloid, further form flocculation with microporous silica gel particles, and further improve the decomposition and removal efficiency of organic pollutants through mutual coaction; and when the mass of the potassium permanganate and the microporous silica gel particles is close to 1:2, the regeneration capacity of the resin is the maximum, and the regeneration effect is the best. The vibration amplitude of the magnetic block in the vibration process is buffered through the arranged buffer body, meanwhile, the arranged first spring provides rebound force for the magnetic block, the kinetic energy of the magnetic block in the rebound process is increased, and therefore the vibration frequency of the magnetic block is improved; simultaneously through the air at piston plate compression body both ends, through compressed gas's expansive force, reaction and piston piece combine first spring common reaction force between them, and effect and magnetic block further promote the vibration frequency of magnetic block, help forming the ultrasonic wave, form microbubble and cavitation effect, better play the synergism, reach the effect that organic pollutant decomposes and clears away. Through the relation between the elasticity of injecing first spring and compressed air's elasticity and the vibration frequency of magnetic block, promote the bubble that the vibration mechanism formed and potassium permanganate, micropore silica gel granule combined action, clear away organic pollutant's effect, promote the regenerated effect of resin. When the magnetic block is when the vibration, the connecting rod moves about in the logical inslot of pipe side wall, when the connecting rod drives the movable block to doing the removal, first spring compresses, the relative movement takes place for first slider and first spout that the guide arm passes through to set up simultaneously, the guide arm shrink is inside to the pipe, the piston block compresses the air in the pipe simultaneously, the valve receives the effect of pressure, form closed state, the piston block receives the reaction force of air pressure, and combine the reaction force that first spring provided, form good buffering to the magnetic block, prevent that the magnetic block amplitude is too big, the collision takes place, cause the magnetic block to damage, increase the stability of using. Through setting up reasonable regulation mode, change the vibration frequency of magnetic block, in actual operation, not only improved automatic control to can in the operation, in time carry out manual control and adjust, control the vibration range and the vibration frequency of magnetic block, promote the security, promote the regeneration capacity of resin.
Other technical solutions not described in detail in the present invention are prior art in the field, and are not described herein again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art; 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. The method for treating the heavy organic pollution of the anion exchange resin is characterized by comprising the following steps: s1, filling the resin body with organic pollutants into the inner tank body, adding saturated salt solution with the temperature of 40 ℃ into the inner tank body through an adding port, soaking for 12 hours, simultaneously connecting a water inlet pipe with a constant temperature water source with the temperature of 40 ℃ and flowing through a water bath pipe, and heating the saturated salt solution in a constant temperature water bath with the temperature of 40 ℃;
s2, after the soaking time is up, adding potassium permanganate and microporous silica gel particles into saturated salt water, and continuing soaking for 3-5 hours;
s3, when the soaking is continued, alternating current is conducted to the electromagnet, a magnetic field with a direction changing periodically is formed around the electromagnet, the periodically changing magnetic field drives the magnetic block to vibrate, the magnetic block forms sound waves with the frequency larger than 20000Hz in the vibration process, the saturated salt water generates a cavitation effect in the transmission process of the sound waves in the saturated salt water, micro bubbles are formed, and the local high temperature and high pressure formed by the micro bubbles destroy the molecular structure of the organic matter and separate the organic matter from the resin body, on the other hand, the charged ions on the surfaces of the micro bubbles are neutralized with the colloid electricity of the organic matter, so that the Van der Waals force among the organic matter molecules is reduced, and the adsorption, destabilization and condensation are facilitated through the microporous silica gel particles;
s4, pass through the discharge port drainage with saturated salt solution, add the mouthful connection and remove the brine pipe, wash the resin body with demineralized water, wash the in-process and inwards inject compressed air and wash to the internal jar, the clearance of the resin body of being convenient for, wash the in-process and take a sample to the washing water, wash to the play water limpid, the discharge of free impurities stops to wash, carries out resin body regeneration.
2. The method according to claim 1, wherein in step S1, the saturated brine is prepared by using the principle that the solubility of salt increases with the increase of water temperature, the demineralized water for dispensing is heated to 55 ℃ in advance by a heating tank, the concentration of the saturated brine at 20 ℃ is 26.47%, the required salt dosage is calculated according to the volume of the alkali storage tank before dispensing, the water temperature of the heating tank is heated to about 55 ℃ in advance, salt is manually added by an injector to be mixed with the effluent of the heating tank, the mixture is injected into the alkali storage tank, and after the salt addition is completed, the medicament dispensing is completed when the desalted water dosage of the heating tank reaches the calculated amount;
the prepared salt water is circulated again through a circulating pump to ensure that the salt is fully dissolved; the temperature of the prepared solution is about 45 ℃ due to heat consumption in the preparation process; the prepared solution is pumped into the inner tank body by a lift pump, and then the temperature is basically about 40 ℃, and the solution is soaked.
3. The method for treating the heavy organic pollution caused by the anion exchange resin according to any one of claims 1 to 2 adopts an apparatus for treating the heavy organic pollution caused by the anion exchange resin, and is characterized by comprising an outer tank body (1), wherein an inner tank body (2) is arranged inside the outer tank body (1), a vibration mechanism is arranged between the outer tank body (1) and the inner tank body (2), and the vibration mechanism vibrates to form ultrasonic waves, so that saturated salt water forms a cavitation effect, and the cavitation effect is performed on the organic pollutants on a resin body (9); the water bath pipes (3) with spiral structures are arranged above and below the vibration mechanism, the water bath pipes (3) are wound on the inner tank body (2), the upper ends of the water bath pipes (3) are connected with water outlet pipes (4), and the lower ends of the water bath pipes (3) are connected with water inlet pipes (5); the top of the inner tank body (2) is provided with a cover body (6), the center of the cover body (6) is embedded and connected with an adding port (7), and the bottom of the inner tank body (2) is provided with a discharge port (8).
4. The anion exchange resin severe organic pollution treatment device according to claim 3, wherein the vibration mechanism comprises a housing (10), the housing (10) is connected to the middle position of the outer side wall of the outer tank body (1), an electromagnet (11) is arranged inside the housing (10), the electromagnet (11) is connected with an alternating current power supply, a magnetic block (12) is arranged between the inner tank body (2) and the outer tank body (1), a periodically changing magnetic field is formed after alternating current is introduced into the electromagnet (11), the magnetic block (12) is driven to reciprocate, two ends of the magnetic block (12) are connected with connecting rods (13), a buffer body (14) is arranged at the other end of each connecting rod (13), and the vibration frequency of the magnetic block (12) is increased through the arranged buffer body (14).
5. The device for treating the heavy organic pollutants by using the anion exchange resin according to claim 4, it is characterized in that the buffer body (14) comprises a pipe body (141), a through groove is arranged on one side of the pipe body (141) close to the connecting rod (13), the connecting rod (13) slides in the through groove, the connecting rod (13) is connected with a moving block (142), the moving block (142) is arranged inside the pipe body (141), the moving block (142) is in clearance sliding connection with the inner wall of the pipe body (141), the two sides of the moving block (142) are both connected with a guide pipe (143), the other end of the guide pipe (143) is provided with a guide rod (144), the guide rod (144) is connected with the guide pipe (143) in a sliding way, the other end of the guide rod (144) is connected with a piston block (146), and the piston block (146) is connected with the inner wall of the pipe body (141) in a sealing and sliding mode.
6. The device for treating the heavy organic pollution by the anion exchange resin as recited in claim 6, wherein two first sliding grooves (1411) are symmetrically formed in the inner side wall of the guide pipe (143), a limiting block (1412) is arranged at one end of the guide rod (144) positioned inside the guide pipe (143), two ends of the limiting block (1412) are connected with first sliding blocks (1413), and the first sliding blocks (1413) are in matched sliding connection with the second sliding blocks (156); the outer side wall of the guide pipe (143) is sleeved with a first spring (145), one end of the first spring (145) is connected with a moving block (142), and the other end of the first spring (145) is connected with a piston block (146).
7. The device for treating the heavy organic pollution by the anion exchange resin as recited in claim 5, wherein partition plates (147) are respectively arranged at positions of the tube body (141) close to both ends, an air chamber (148) is formed at one side of the partition plate (147) far away from the piston block (146), a through hole (149) is formed at the center position of the partition plate (147), an air valve (1410) is arranged in the through hole (149), the air valve (1410) is arranged at one side of the partition plate (147) close to the piston block (146), and the air valve (1410) is rotatably connected with the partition plate (147) through a hinge.
8. The device for treating the heavy organic pollution by the anion exchange resin as recited in claim 4, wherein the vibration mechanism further comprises an adjusting mechanism (15), the adjusting mechanism (15) is a box body (151), one end of the box body (151) is connected with the outer wall of the outer tank body (1), one end of the box body (151) is provided with a lead screw (152) in a penetrating manner, the lead screw (152) is connected with the box body (151) in a matching and rotating manner through an internal thread, one end of the lead screw (152) is connected with a handle (153), one end of the lead screw (152) positioned inside the box body (151) is provided with an internal solenoid (154) in a matching manner, and the lead screw (152) is connected with the internal solenoid (154) in a matching and rotating manner; interior screwed pipe (154) is connected with connecting block (155), the both sides of connecting block (155) all are connected with second slider (156), second spout (157) have been seted up to box body (151) inside wall symmetry, second spout (157) and second slider (156) match sliding connection.
9. The apparatus for treating heavy organic pollutants with anion exchange resin according to claim 8, wherein a moving rod (158) is connected to one end of the connecting block (155) far away from the inner coil (154), the moving rod (158) penetrates through the side wall of the outer tank (1), the moving rod (158) is in clearance sliding connection with the outer tank (1), a second spring (159) is connected to the other end of the moving rod (158), and the other end of the second spring (159) is connected with the magnetic block (12).
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| CN115744978A (en) * | 2022-11-02 | 2023-03-07 | 郑州大学 | Preparation method of bismuth antimonate nano material |
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