CN111773768A - Method for testing adsorption capacity of activated carbon in organic high-salt industrial wastewater - Google Patents
Method for testing adsorption capacity of activated carbon in organic high-salt industrial wastewater Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 208
- 238000000034 method Methods 0.000 title claims abstract description 60
- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 27
- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 94
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 22
- 230000014759 maintenance of location Effects 0.000 claims abstract description 17
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 230000002572 peristaltic effect Effects 0.000 claims description 64
- 239000002351 wastewater Substances 0.000 claims description 23
- 238000011049 filling Methods 0.000 claims description 11
- 238000002425 crystallisation Methods 0.000 claims description 7
- 230000008025 crystallization Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 238000004587 chromatography analysis Methods 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000012780 transparent material Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims 1
- 238000004088 simulation Methods 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 description 8
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000012716 precipitator Substances 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 210000005239 tubule Anatomy 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 238000001704 evaporation Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 salt ions Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
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- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
- B01D15/20—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the conditioning of the sorbent material
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
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- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The invention discloses a method for testing the adsorption capacity of active carbon in organic high-salt industrial wastewater, which comprises the following steps: s1, air removal: adjusting the water flow direction to allow the activated carbon chromatographic column to flow in and out, and circulating desalted water to remove residual air in the using device; s2, cleaning: after no air bubbles exist in the whole set of using device in the step S1, adjusting the water flow direction to be that the activated carbon chromatographic column enters from the lower part and goes out from the upper part, and circulating desalted water to clean the column body; s3, rinsing and collecting a water sample: after the step S2 is finished, replacing desalted water with a high-salinity water sample, stirring at a rotating speed of 400-700 rpm, keeping the water flow direction unchanged, and continuously rinsing the column; after the rinsing is finished, collecting an effluent water sample according to the retention time; wherein the retention time of the water sample in the activated carbon chromatographic column is 0.4-1.5 hours. The method can meet the activated carbon process experimental simulation of the high-salinity organic industrial wastewater.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a method for testing the adsorption capacity of active carbon in organic high-salt industrial wastewater.
Background
Sewage treatment is one of the main contents in the field of environmental protection. Among them, the activated carbon technology is widely used in wastewater that is difficult to be treated by activated sludge, and the common problem of this part of wastewater is generally high salinity or contains highly toxic organic substances. Since the activation process is a microscopic process, i.e., the surface erosion of a large amount of molecular carbides is a point-like erosion, the surface of the activated carbon is caused to have countless fine pores. The diameter of micropores on the surface of the activated carbon is mostly between 2 nm and 50nm, and even a small amount of activated carbon has a huge surface area.
An activated carbon Small-Scale Column Test (Rapid Small-Scale Column Test) is widely used, and on the basis of a fixed bed mass transfer model, a factor analysis is utilized to explain the relation between the adsorption efficiency of a Column body and an organic matter. In the experiment, the flow is controlled by a peristaltic pump, the retention time of a water sample in an activated carbon column is kept to be a fixed value (generally 0.4-1.5 h), and the removal efficiency of organic matters in the wastewater is determined according to the CODcr or TOC concentration of a sample of inlet water and outlet water.
The high-salt industrial wastewater is wastewater which is produced by chemical enterprises and contains a large amount of salt ions such as sodium ions, chloride ions, sulfate ions and the like and has higher total soluble solid concentration. The TDS of the part of sewage is often more than 10000mg/L, and the salinity of a water body is overhigh in an activated sludge aerobic biodegradation method commonly used in the field of sewage treatment, so that bacterial cells of the sludge are dehydrated and dead, and the activity is lost, so that the activated carbon technology is required to be used for treatment. Before treatment, the field condition needs to be simulated through experiments, support data is provided, and meanwhile, the matched experimental device is also needed for theoretical research of the related high-salinity wastewater.
In the ordinary chromatographic column experimentation, if use high salt waste water as the test object, can appear and advance the interior crystallization of bottle, lead to easily advancing the jam of appearance pipe, can't continue the experiment.
The Chinese patent CN201910634083.2 discloses a method for treating high-salinity wastewater, which comprises the following steps: s1, adding a section of precipitator into the high-salinity wastewater to be treated so as to precipitate metal ions in the high-salinity wastewater; s2, adding a secondary precipitator to the overflow of the S1 step to precipitate metal ions in the overflow, wherein the secondary precipitator is different from the primary precipitator; s3, evaporating the overflow of the S2 step at low temperature; and S4, naturally evaporating the concentrated solution in the step S3. Compared with the prior art, the method has the advantages of short process flow, low energy consumption, low operation cost, high efficiency and no secondary pollution to the environment. The method is suitable for treatment, but is not suitable for experimental study on the adsorption efficiency of the activated carbon.
The Chinese invention patent CN201510711199.3 discloses a method for purifying high-salinity wastewater by electrostatic adsorption, which utilizes an electrostatic field provided by low voltage generated by a solar panel to treat the high-salinity wastewater, adopts a novel electrode material to improve the treatment efficiency, and has the effects of reducing energy consumption, improving the treatment efficiency, saving energy and reducing cost. The method is suitable for treating wastewater, but does not utilize activated carbon adsorption to carry out experimental study on wastewater treatment.
Therefore, it is urgently needed to provide a method for testing the adsorption capacity of the activated carbon in the organic high-salt industrial wastewater, which is suitable for the activated carbon adsorption of the high-salt industrial wastewater and can meet the activated carbon process experimental simulation of the high-salt organic industrial wastewater.
Disclosure of Invention
The invention aims to provide a method for testing the activated carbon adsorption capacity of organic high-salt industrial wastewater, which is suitable for an activated carbon adsorption experiment of high-salt wastewater, accurately tests wastewater data and provides a basis for subsequent research of wastewater.
In order to achieve the purpose, the invention adopts the following technical scheme.
The invention provides a method for testing the adsorption capacity of active carbon in organic high-salt industrial wastewater, which comprises the following steps:
s1, air removal: adjusting the water flow direction to allow the activated carbon chromatographic column to flow in and out, and circulating desalted water to remove residual air in the using device;
s2, cleaning: after no air bubbles exist in the using device in the step S1, adjusting the water flow direction to enable the activated carbon chromatographic column to enter from the lower part and to go out from the upper part, circulating desalted water to wash the column, and maintaining the desalted water to wash the column;
s3, rinsing and collecting a water sample: after the step S2 is finished, replacing desalted water with a high-salinity water sample, stirring at a rotating speed of 400-700 rpm, keeping the water flow direction unchanged, and rinsing the column; after the rinsing is finished, collecting an effluent water sample according to the retention time;
wherein the retention time of the water sample in the activated carbon chromatographic column is 0.4-1.5 hours.
Furthermore, in the method, the water flow is regulated through a peristaltic pump, and the inner diameter of a peristaltic pump pipe is 1.4-2.0 mm; the inner diameter can guarantee the requirement of most inflow in this scope, and length can be controlled in reasonable scope, avoids because the high salt waste water crystallization that the pump line overlength leads to blocks up the problem.
Further, the mass of the activated carbon filled in the activated carbon chromatographic column is 20-40 g; enough reaction time can be ensured, and the volume of the column body is not too high.
Further, the inner diameter of the activated carbon chromatographic column is 1.6 cm; the condition in the chromatographic column is conveniently observed, and the problem that the height precision is insufficient due to too wide column body is solved, so that the flow calculation of the peristaltic pump is influenced.
Further, the time for washing the cartridge with the desalted water was 1 hour.
Further, the rinsing time was 1 hour.
Furthermore, in the method, all the materials of the used pipelines are pure transparent materials. The bubble position can be observed clearly in the test process, and the flow error caused by the bubble position is avoided.
Further, in the method, the using device is in seamless connection so as to ensure that the sample introduction process is in a sealed state.
Further, the using device comprises: an active carbon chromatographic column, a peristaltic pump, a sample outlet bottle, a sample inlet bottle and a magnetic stirrer.
Furthermore, both ends of the active carbon chromatographic column are connected with a tubule; the superfine tube comprises a sample inlet tube and a sample outlet tube; the active carbon chromatographic column is in seamless connection with a peristaltic pump pipe of the peristaltic pump through the sample inlet pipe; the active carbon chromatographic column is connected with the sample outlet bottle through the sample outlet pipe.
Further, the filling of the activated carbon in the activated carbon chromatographic column comprises the following steps: filling the activated carbon into the activated carbon chromatographic column, and repeatedly reversing the activated carbon chromatographic column for a plurality of times to ensure that no air bubbles exist in the activated carbon chromatographic column; and (4) standing for 24 hours, observing again, and if bubbles still exist in the chromatographic column, repeating the steps to remove the bubbles until no bubbles exist in the activated carbon chromatographic column.
According to the method, a magnetic stirrer is used for maintaining continuous stirring of the sample water, the rotating speed is 400-700 rpm, the experimental effect is prevented from being influenced by crystallization of the water sample, and stirring cannot be influenced by too high or too low rotating speed.
The filling quality of the active carbon, the inner diameter of the tube of the peristaltic pump and the inner diameter of the tube of the chromatographic column specified in the method can ensure that the filling height of the active carbon is appropriate, the flow of the peristaltic pump is convenient to calculate, and the retention time of water samples in different chromatographic columns can be accurately ensured to be consistent.
The method relates to a method for using a chromatography column in a device made of transparent organic glass, which can conveniently observe the conditions in the column at any time in the preparation steps and the experiment process before the experiment and ensure that the water level in the chromatography column is always in a completely filled state.
The peristaltic pump hoses (sample inlet/outlet) used in the device related by the method are all made of transparent rubber materials, so that the trend of bubbles can be observed when the bubbles are removed, and the interference caused by the retention time deviation of a water sample due to the bubbles in the experimental process is avoided.
The invention has the beneficial effects that:
the method is suitable for the activated carbon adsorption experiment of the high-salinity wastewater, accurately tests the wastewater data, and provides a basis for the subsequent research of the wastewater.
In the invention, the sample water sample is continuously stirred during the experiment period, so that the condition of standing crystallization of the high-salinity wastewater can be avoided. According to the method, after the pump pipe of the sample outlet is connected into the sample outlet bottle, the peristaltic pump is adjusted to turn to enable the water flow direction to be that the chromatographic column enters and exits from the top, and residual air in the peristaltic pump pipe and the superfine pipe is removed; when the sample introduction section begins to stably discharge water and no bubble is observed in the peristaltic pump, the peristaltic pump is adjusted to turn to enable the water flow direction to be that the chromatographic column enters and flows out from the bottom so as to ensure that no bubble exists in the whole set of using device to influence the flow.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the apparatus used in the present invention.
FIG. 2 is a schematic side view of the device used in the present invention.
FIG. 3 is a schematic view showing the structure of a chromatography column in the apparatus for use in the present invention.
1. A support frame;
2. a butterfly clip;
3. an activated carbon chromatographic column;
4. a support plate;
5. a peristaltic pump;
6. a magnetic stirrer;
7. discharging a sample bottle;
8. a sample feeding bottle;
9. a very thin tube;
10. a peristaltic pump tube;
11. a threaded cap;
12. and (5) filtering the membrane.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The embodiment provides a method for testing the adsorption capacity of activated carbon in organic high-salt industrial wastewater, which comprises the following steps:
s1, air removal: adjusting the water flow direction to allow the activated carbon chromatographic column to flow in and out, and circulating desalted water to remove residual air in the using device;
s2, cleaning: after no air bubbles exist in the using device in the step S1, adjusting the water flow direction to be that the activated carbon chromatographic column enters from the lower part and goes out from the upper part, and circulating desalted water to clean the column body;
s3, rinsing and collecting a water sample: after the step S2 is finished, replacing desalted water with a high-salinity water sample, stirring at a rotating speed of 400-700 rpm, keeping the water flow direction unchanged, and rinsing the column; after the rinsing is finished, collecting an effluent water sample according to the retention time;
wherein the retention time of the water sample in the activated carbon chromatographic column is 0.4-1.5 hours.
In the method, the water flow is regulated by a peristaltic pump, and the inner diameter of a peristaltic pump pipe is 1.4-2.0 mm; the inner diameter can guarantee the requirement of most inflow in this scope, and length can be controlled in reasonable scope, avoids because the high salt waste water crystallization that the pump line overlength leads to blocks up the problem.
The mass of the activated carbon filled in the activated carbon chromatographic column is 20-40 g. Enough reaction time can be ensured, and the volume of the column body is not too high.
The inner diameter of the active carbon chromatographic column is 1.6 cm; the condition in the chromatographic column is conveniently observed, and the problem that the height precision is insufficient due to too wide column body is solved, so that the flow calculation of the peristaltic pump is influenced.
In the method, the used materials of the pipelines (such as a peristaltic pump tube and an ultra-thin tube) are all pure transparent materials. The bubble position can be observed clearly in the test process, and the flow error caused by the bubble position is avoided.
In the method, the used device is in seamless connection so as to avoid errors generated in the sample introduction process.
Example 2
The embodiment provides a method for testing the adsorption capacity of activated carbon in organic high-salt industrial wastewater, which comprises the following steps:
s1, air removal: adjusting the water flow direction to allow the activated carbon chromatographic column to flow in and out, and circulating desalted water to remove residual air in the using device;
s2, cleaning: after no air bubbles exist in the using device in the step S1, adjusting the water flow direction to enable the activated carbon chromatographic column to enter and exit from the lower part and the upper part, circulating desalted water to wash the column, and maintaining the desalted water to wash the column for 1 hour;
s3, rinsing and collecting a water sample: after the step S2 is finished, replacing desalted water with a high-salinity water sample, stirring at a rotating speed of 400-700 rpm, keeping the water flow direction unchanged, and rinsing the column for 1 hour; after the rinsing is finished, collecting an effluent water sample according to the retention time;
wherein the retention time of the water sample in the activated carbon chromatographic column is 0.4-1.5 hours.
In the method, the water flow is regulated by a peristaltic pump, and the inner diameter of a peristaltic pump pipe is 1.4-2.0 mm; the inner diameter can guarantee the requirement of most inflow in this scope, and length can be controlled in reasonable scope, avoids because the high salt waste water crystallization that the pump line overlength leads to blocks up the problem.
The mass of the activated carbon filled in the activated carbon chromatographic column is 20-40 g. Enough reaction time can be ensured, and the volume of the column body is not too high.
The inner diameter of the active carbon chromatographic column is 1.6 cm; the condition in the chromatographic column is conveniently observed, and the problem that the height precision is insufficient due to too wide column body is solved, so that the flow calculation of the peristaltic pump is influenced.
In the method, the used materials of the pipelines (such as a peristaltic pump tube and an ultra-thin tube) are all pure transparent materials. The bubble position can be observed clearly in the test process, and the flow error caused by the bubble position is avoided.
In the method, the used device is in seamless connection so as to avoid errors generated in the sample introduction process.
The using device comprises: an active carbon chromatographic column, a peristaltic pump, a sample outlet bottle, a sample inlet bottle and a magnetic stirrer.
Two ends of the active carbon chromatographic column are connected with a tubule; the superfine tube comprises a sample inlet tube and a sample outlet tube; the active carbon chromatographic column is in seamless connection with a peristaltic pump pipe of the peristaltic pump through the sample inlet pipe; the active carbon chromatographic column is connected with the sample outlet bottle through the sample outlet pipe.
The filling of the active carbon in the active carbon chromatographic column comprises the following steps: filling the activated carbon into the activated carbon chromatographic column, and repeatedly reversing the activated carbon chromatographic column for a plurality of times to ensure that no air bubbles exist in the activated carbon chromatographic column; and (4) standing for 24 hours, observing again, and if bubbles still exist in the chromatographic column, repeating the steps to remove the bubbles until no bubbles exist in the activated carbon chromatographic column.
Example 3
The embodiment provides a method for testing the adsorption capacity of activated carbon in organic high-salt industrial wastewater, which comprises the following steps:
1) filling 25g of activated carbon into the activated carbon column, repeatedly reversing the activated carbon for several times to ensure that no bubbles exist in the activated carbon column, standing for 24 hours, observing again to find that bubbles still exist in the chromatographic column, repeating the step of removing the bubbles, and observing that no bubbles exist in the chromatographic column after 3 hours.
2) Screwing two ends of the activated carbon column, inverting for several times to observe no water seepage, and inserting the superfine tube into the peristaltic pump tube to ensure that no gap exists at the access position.
3) And (3) respectively containing sufficient desalted water in the sample injection bottles, connecting the pump pipes of the sample outlets into the sample injection bottles, adjusting the rotation direction of the peristaltic pumps to enable the water flow direction to be that the water flows into and out of the chromatographic columns, and expelling residual air in the peristaltic pump pipes and the superfine pipes.
4) When the sample introduction section (the lower thread cover of the chromatographic column) starts to stably discharge water and no air bubbles are observed in the peristaltic pump, the peristaltic pump is adjusted to turn to ensure that the water flow direction is that the chromatographic column enters from the lower part and goes out from the upper part, and the desalted water is maintained to clean the column body for 1 hour.
5) Measuring the height of the activated carbon chromatographic column to be 25.4cm, calculating the filling volume of the activated carbon, calculating the flow of a peristaltic pump, correcting the flow of the peristaltic pump, and ensuring that the retention time of a water sample is 0.4 hour.
6) Stopping the peristaltic pump, replacing the sample bottle with the experimental high-salt water sample, opening the magnetic stirrer, maintaining the rotating speed at 500 revolutions per minute, maintaining the water sample to rinse the column body for 1 hour, stopping the peristaltic pump after 1 hour, and discarding and cleaning the liquid in the sample bottle.
7) And (4) starting the peristaltic pump, collecting the effluent water sample according to the retention time, and closing the peristaltic pump after the collection is finished.
8) And testing the samples in the sample inlet bottle and the sample outlet bottle.
9) The polar thin tube is disconnected with the peristaltic pump tube, the threaded cover is unscrewed to clean the active carbon, and the magnetic stirrer and the peristaltic pump are closed
In the embodiment, the experimental water sample is organic high-salt industrial wastewater discharged by a certain company, and the concentration of the (total organic carbon) TOC test effluent sample is 30mg/L, and the (total dissolved solids) TDS concentration is 15000 mg/L.
And (3) testing results: the TOC concentration of the effluent sample is 12mg/L, compared with that of the influent sample, the TOC concentration is obviously reduced, and three groups of parallel tests are stable.
Example 4
The embodiment provides a method for testing the adsorption capacity of activated carbon in organic high-salt industrial wastewater, which comprises the following steps:
1) filling 30g of activated carbon into the activated carbon column, repeatedly reversing the activated carbon for several times to ensure that no bubbles exist in the activated carbon column, standing for 24 hours, and observing again to find that the chromatography column has no bubbles.
2) Screwing two ends of the activated carbon column, inverting for several times to observe no water seepage, and inserting the superfine tube into the peristaltic pump tube to ensure that no gap exists at the access position.
3) And (3) respectively containing sufficient desalted water in the sample injection bottles, connecting the pump pipes of the sample outlets into the sample injection bottles, adjusting the rotation direction of the peristaltic pumps to enable the water flow direction to be that the water flows into and out of the chromatographic columns, and expelling residual air in the peristaltic pump pipes and the superfine pipes.
4) When the sample introduction section (the lower thread cover of the chromatographic column) starts to stably discharge water and no air bubbles are observed in the peristaltic pump, the peristaltic pump is adjusted to turn to ensure that the water flow direction is that the chromatographic column enters from the lower part and goes out from the upper part, and the desalted water is maintained to clean the column body for 1 hour.
5) Measuring the height of the activated carbon chromatographic column to be 26.2cm, calculating the filling volume of the activated carbon, calculating the flow of a peristaltic pump, correcting the flow of the peristaltic pump, and ensuring that the retention time of a water sample is 0.4 hour.
6) Stopping the peristaltic pump, replacing the sample bottle with the experimental high-salt water sample, opening the magnetic stirrer, maintaining the rotating speed at 500 revolutions per minute, maintaining the water sample to rinse the column body for 1 hour, stopping the peristaltic pump after 1 hour, and discarding and cleaning the liquid in the sample bottle.
7) And (4) starting the peristaltic pump, collecting the effluent water sample according to the retention time, and closing the peristaltic pump after the collection is finished.
8) And testing the samples in the sample inlet bottle and the sample outlet bottle.
9) The polar thin tube is disconnected with the peristaltic pump tube, the threaded cover is unscrewed to clean the active carbon, and the magnetic stirrer and the peristaltic pump are closed
In this embodiment, the experimental water sample is the organic high salt industrial waste water that a certain company discharged, and TOC test effluent sample concentration is 60mg/L, and TDS concentration is 20000 mg/L.
And (3) testing results: the TOC concentration of the effluent sample is 22mg/L, compared with that of the influent sample, the TOC concentration is obviously reduced, and three groups of parallel tests are stable.
The using device in the embodiment of the invention is as follows:
referring to fig. 1, 2 and 3, the using device comprises a stainless steel support structure 1, and is provided with three activated carbon chromatographic columns 3, the middle material of the chromatographic columns 3 is transparent organic ester glass, sample inlet/outlet ports on two sides are respectively provided with a plastic threaded cover 11 with a rubber sealing ring, and a tubule 9 for inlet/outlet of a sample is respectively arranged in the threaded covers 11 on two sides. The very thin tube 9 needs to go in and out of the peristaltic pump tube 10 and ensure no gap leading to liquid leakage. The lower part of the chromatographic column 3 is provided with a stainless steel support plate 4, the rear part of the layer is provided with three peristaltic pumps 5, a peristaltic pump pipe 10 is a transparent rubber hose with the diameter of 1.4-2.0 mm, the front part of the layer is provided with three magnetic stirrers 6 (attached with three magnetic stirring rotors), and the stirrers 6 are respectively provided with a glass sampling bottle 8. The side of the magnetic stirrer 6 is provided with fixing grooves for fixing the sample bottles 7 at positions corresponding to the three areas for placing the sample bottles 7.
The peristaltic pump used in the examples was badland BT-100L, the inner diameter of the tube of the peristaltic pump was 1.6mm, and the inner diameter of the column was 1.6cm, and the magnetic stirrer was IKA C-MAG MS 7.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A method for testing the adsorption capacity of activated carbon in organic high-salt industrial wastewater is characterized by comprising the following steps:
s1, air removal: adjusting the water flow direction to allow the activated carbon chromatographic column to flow in and out, and circulating desalted water to remove residual air in the using device;
s2, cleaning: adjusting the water flow direction to enter and exit from the lower part of the activated carbon chromatographic column after no air bubbles exist in the using device in the step S1, and circulating desalted water to clean the column;
s3, rinsing and collecting a water sample: after the step S2 is finished, replacing desalted water with a high-salinity water sample, stirring at a rotating speed of 400-700 rpm, keeping the water flow direction unchanged, and rinsing the column; after the rinsing is finished, collecting an effluent water sample according to the retention time;
wherein the retention time of the water sample in the activated carbon chromatographic column is 0.4-1.5 hours.
2. The method for testing the adsorption capacity of the activated carbon in the organic high-salt industrial wastewater according to claim 1, wherein in the method, the water flow is regulated by a peristaltic pump, and the inner diameter of a tube of the peristaltic pump is 1.4-2.0 mm; the inner diameter can guarantee the requirement of most inflow in this scope, and length can be controlled in reasonable scope, avoids because the high salt waste water crystallization that the pump line overlength leads to blocks up the problem.
3. The method for testing the adsorption capacity of the activated carbon for the organic high-salt industrial wastewater according to claim 1, wherein the mass of the activated carbon filled in the activated carbon chromatographic column is 20-40 g.
4. The method for testing the adsorption capacity of the activated carbon for the organic high-salt industrial wastewater according to claim 1 or 3, wherein the inner diameter of the activated carbon chromatographic column is 1.6 cm; the condition in the chromatographic column is conveniently observed, and the problem that the height precision is insufficient due to too wide column body is solved, so that the flow calculation of the peristaltic pump is influenced.
5. The method for testing the adsorption capacity of the activated carbon in the organic high-salt industrial wastewater according to claim 1 or 2, wherein the materials of the pipelines used in the method are all pure transparent materials; so that the bubble position can be clearly observed in the test process, and the flow error caused by the bubble position is avoided.
6. The method for testing the adsorption capacity of the activated carbon in the organic high-salt industrial wastewater according to claim 1, wherein the using device used in the method is a seamless connection so as to ensure that a sample feeding process is in a sealed state.
7. The method for testing the adsorption capacity of the activated carbon in the organic high-salt industrial wastewater according to claim 1 or 6, wherein the using device comprises an activated carbon chromatographic column, a peristaltic pump, a sample outlet bottle, a sample inlet bottle and a magnetic stirrer.
8. The method for testing the adsorption capacity of the activated carbon in the organic high-salt industrial wastewater according to claim 7, wherein two ends of the activated carbon chromatographic column are connected with an extremely thin tube; the superfine tube comprises a sample inlet tube and a sample outlet tube; the active carbon chromatographic column is in seamless connection with a peristaltic pump pipe of the peristaltic pump through the sample inlet pipe; the active carbon chromatographic column is connected with the sample outlet bottle through the sample outlet pipe.
9. The method for testing the adsorption capacity of the activated carbon for organic high-salt industrial wastewater according to any one of claims 1, 3 or 8, wherein the packing of the activated carbon in the activated carbon chromatography column comprises the following steps: filling the activated carbon into the activated carbon chromatographic column, and repeatedly reversing the activated carbon chromatographic column for a plurality of times to ensure that no air bubbles exist in the activated carbon chromatographic column; and (4) standing for 24 hours, observing again, and if bubbles still exist in the chromatographic column, repeating the steps to remove the bubbles until no bubbles exist in the activated carbon chromatographic column.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008168201A (en) * | 2007-01-11 | 2008-07-24 | Seiko Epson Corp | Wastewater treatment method |
| CN203474472U (en) * | 2013-06-25 | 2014-03-12 | 内蒙古同远企业管理咨询有限责任公司 | Rectifying and purifying device for producing polycrystalline silicon by modified Siemens process |
| CN103752038A (en) * | 2013-12-25 | 2014-04-30 | 暨南大学 | Filling method of chromatographic column |
| CN205873949U (en) * | 2016-08-04 | 2017-01-11 | 内蒙古双欣环保材料股份有限公司 | A strain column adsorption experimental apparatus for coal quality active carbon adsorption evaluation of ability |
| CN108128835A (en) * | 2017-12-19 | 2018-06-08 | 山东圣坤环保科技有限公司 | Activated carbon sewage disposal system and the sewage water treatment method using the system |
-
2020
- 2020-06-02 CN CN202010487836.4A patent/CN111773768A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008168201A (en) * | 2007-01-11 | 2008-07-24 | Seiko Epson Corp | Wastewater treatment method |
| CN203474472U (en) * | 2013-06-25 | 2014-03-12 | 内蒙古同远企业管理咨询有限责任公司 | Rectifying and purifying device for producing polycrystalline silicon by modified Siemens process |
| CN103752038A (en) * | 2013-12-25 | 2014-04-30 | 暨南大学 | Filling method of chromatographic column |
| CN205873949U (en) * | 2016-08-04 | 2017-01-11 | 内蒙古双欣环保材料股份有限公司 | A strain column adsorption experimental apparatus for coal quality active carbon adsorption evaluation of ability |
| CN108128835A (en) * | 2017-12-19 | 2018-06-08 | 山东圣坤环保科技有限公司 | Activated carbon sewage disposal system and the sewage water treatment method using the system |
Non-Patent Citations (1)
| Title |
|---|
| 潘中允等: "《放射性核素诊断学》", 31 March 1984 * |
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