CN214360641U - Pollutant adsorption and regeneration system of powdered activated carbon - Google Patents
Pollutant adsorption and regeneration system of powdered activated carbon Download PDFInfo
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- CN214360641U CN214360641U CN202022622890.3U CN202022622890U CN214360641U CN 214360641 U CN214360641 U CN 214360641U CN 202022622890 U CN202022622890 U CN 202022622890U CN 214360641 U CN214360641 U CN 214360641U
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Abstract
The utility model provides a pollutant adsorption and regeneration system of powdered activated carbon. The pollutant adsorption and regeneration system of the powdered activated carbon comprises a pollutant adsorption system and a powdered activated carbon regeneration system, wherein the pollutant adsorption system is positioned at the upstream of the powdered activated carbon regeneration system; the pollutant adsorption system and the powdered activated carbon regeneration system form a closed circulation system, and the pollutant adsorption system comprises an activated carbon adsorption tower, ultrafiltration equipment, a first filter and a magnetic flocculation treatment system; the powdered activated carbon regeneration system comprises a pretreatment tank, a second filter, a regeneration reactor and a third filter. The system provided by the utility model can not only realize the processing of sewage, the cyclic utilization of active carbon has the characteristics that pollutant treatment effeciency is high, simple and easy, regeneration efficiency is high moreover.
Description
Technical Field
The utility model belongs to the technical field of the environmental protection, concretely relates to pollutant adsorbs and regeneration system based on powdered activated carbon.
Background
The light polluted water still contains pollutants and SS which are difficult to degrade after being treated, the light polluted water can reach the standard by performing advanced treatment, the powdered activated carbon has large specific surface area and strong adsorption capacity, and has good treatment effects on chromaticity, organic matters which are difficult to degrade and the like in sewage, so the light polluted water is widely applied to the field of sewage.
Flocculation sedimentation is the process of flocculation sedimentation of particles in water. After a coagulant is added into water, colloids and dispersed particles of suspended matters generate floccules under the interaction of molecular force, and the floccules and the dispersed particles collide with each other and are coagulated in the sedimentation process, so that the size and the mass of the floccules are continuously increased, and the sedimentation speed is continuously increased. But the formed floc is loose and has poor flocculation effect, but the addition of the magnetic powder causes pollutants to form floc and be combined with the magnetic powder, thereby forming large and compact magnetic floc groups which are beneficial to solid-liquid separation.
SUMMERY OF THE UTILITY MODEL
To above not enough, the utility model provides a pollutant adsorbs and regeneration system based on powdered activated carbon. The technical scheme is as follows:
the invention provides a pollutant adsorption and regeneration system based on powdered activated carbon, which comprises a pollutant adsorption system and a powdered activated carbon regeneration system, wherein the pollutant adsorption system comprises a first adsorption tank, a second adsorption tank, a first adsorption tank, a second adsorption tank and a second adsorption tank;
the contaminant adsorption system is located upstream of the powdered activated carbon regeneration system;
the pollutant adsorption system and the powdered activated carbon regeneration system form a closed circulation system;
the pollutant adsorption system comprises an activated carbon adsorption tower, ultrafiltration equipment, a first filter and a magnetic flocculation treatment system;
the activated carbon adsorption tower, the ultrafiltration equipment, the first filter and the magnetic flocculation treatment system are sequentially connected;
the powdered activated carbon regeneration system comprises a pretreatment tank, a second filter, a regeneration reactor and a third filter;
the pretreatment pool, the second filter, the regeneration reactor and the third filter are connected in sequence.
Preferably, the activated carbon adsorption tower is provided with a water to be treated input end, a concentrated water reflux end, a water outlet end and a first powdered activated carbon input end.
Preferably, the activated carbon adsorption column further comprises a second powdered activated carbon input.
Preferably, the ultrafiltration equipment is provided with a water inlet end connected with the water outlet end of the activated carbon adsorption tower, a water production end, and a concentrated water outlet end respectively connected with the concentrated water reflux end of the activated carbon adsorption tower and the input end of the first filter.
Preferably, the first filter is provided with an input end, a filtrate output end and a saturated powdered activated carbon output end.
Preferably, the magnetic flocculation treatment system comprises a flocculation tank, a supermagnetic separator, a magnetic seed recovery device, a sludge tank, a dosing device and a magnetic seed dosing device, wherein,
the flocculation tank, the super-magnetic separator, the magnetic seed recovery device and the sludge tank are sequentially connected;
the flocculation tank is provided with a sewage inlet connected with the filtrate output end of the first filter, a dosing inlet connected with a dosing device, a first magnetic seed inlet connected with a magnetic seed dosing device, a second magnetic seed inlet connected with a magnetic seed recovery device and a water outlet end connected with the supermagnetic separator.
Preferably, a clear water outlet of the supermagnetic separator is connected with an inlet end of the activated carbon adsorption tower through a pipeline.
Preferably, the pretreatment tank is provided with a saturated activated carbon input end, a pretreatment liquid input end and a pretreatment output end.
Preferably, a regeneration tank, an ultrasonic generator, an ultrasonic transducer and a heating device are arranged in the regeneration reactor.
Preferably, a temperature control knob and a power control knob are further arranged in the regeneration reactor.
Preferably, the ultrasonic generator and the ultrasonic transducer are positioned below the regeneration tank, and the heating device is arranged at the bottom of the regeneration tank.
The utility model provides a system can not only realize the processing of sewage, carries out effective treatment to the pollutant in the sewage, can regenerate useless powder active carbon simultaneously, realizes the cyclic utilization of active carbon, and pollutant treatment efficiency is high, simple and easy, characteristics that regeneration efficiency is high.
Drawings
FIG. 1 is a schematic view of a system for adsorbing and regenerating contaminants from powdered activated carbon as described in the examples.
FIG. 2 is a schematic diagram of the structure of a regeneration reactor in the example;
in the figure: 2-1-shell; 2-2-regeneration tank; 2-3-regeneration reaction input end; 2-4-regeneration liquid input end; 2-5-regeneration reaction output end; 2-6-ultrasonic generator; 2-7-heating means; 2-8-ultrasonic transducer.
Detailed Description
The utility model provides a pollutant adsorption and regeneration system of powdered activated carbon.
In one embodiment provided by the present invention, the system for adsorbing and regenerating pollutants on powdered activated carbon comprises a pollutant adsorption system and a powdered activated carbon regeneration system;
the contaminant adsorption system is located upstream of the powdered activated carbon regeneration system;
the pollutant adsorption system and the powdered activated carbon regeneration system form a closed circulation system;
the pollutant adsorption system comprises an activated carbon adsorption tower, ultrafiltration equipment, a first filter and a magnetic flocculation treatment system;
the activated carbon adsorption tower, the ultrafiltration equipment, the first filter and the magnetic flocculation treatment system are sequentially connected;
the powdered activated carbon regeneration system comprises a pretreatment tank, a second filter, a regeneration reactor and a third filter;
the pretreatment pool, the second filter, the regeneration reactor and the third filter are connected in sequence.
The utility model provides a pair of in the concrete implementation mode, the activated carbon adsorption tower is equipped with pending water input end, dense water return end, goes out water end and first powder activated carbon input.
And the first powdered activated carbon input end is used for inputting the regenerated powdered activated carbon treated by the third filter into the activated carbon adsorption tower. The first powdered activated carbon input end can also be used for inputting newly added powdered activated carbon into the activated carbon adsorption tower.
The utility model provides a pair of in a specific embodiment, the active carbon adsorption tower still includes second powdered activated carbon input.
And the input end of the second powdered activated carbon is used for inputting newly added powdered activated carbon into the activated carbon adsorption tower.
The utility model provides a pair of in the concrete implementation mode, ultrafiltration apparatus is equipped with the end of intaking that links to each other with the active carbon adsorption tower goes out the water end, produces the water end, goes out the water end with the dense water that the active carbon adsorption tower dense water reflux end and first filter input link to each other respectively.
The utility model provides a pair of in the concrete implementation mode, first filter is equipped with input, filtrating output and saturated powder active carbon output.
In a specific embodiment provided by the utility model, the magnetic flocculation treatment system comprises a flocculation tank, a supermagnetic separator, a magnetic seed recovery device, a sludge tank, a dosing device and a magnetic seed feeding device, wherein,
the flocculation tank, the super-magnetic separator, the magnetic seed recovery device and the sludge tank are sequentially connected;
the flocculation tank is provided with a sewage inlet connected with the filtrate output end of the first filter, a dosing inlet connected with a dosing device, a first magnetic seed inlet connected with a magnetic seed dosing device, a second magnetic seed inlet connected with a magnetic seed recovery device and a water outlet end connected with the supermagnetic separator.
The utility model provides a pair of in the concrete implementation mode, the clear water delivery port of supermagnetic separating centrifuge passes through the entrance point of pipeline and active carbon adsorption tower and links to each other.
The utility model provides a pair of in the concrete implementation mode, the preliminary treatment pond is equipped with saturated active carbon input, preliminary treatment liquid input and preliminary treatment output.
The utility model provides a pair of in the concrete implementation mode, be equipped with regeneration groove, supersonic generator, ultrasonic transducer and heating device in the regeneration reactor.
The utility model provides a pair of in the concrete implementation mode, still be equipped with control by temperature change knob and power control knob in the regeneration reactor.
The utility model provides a pair of in the concrete implementation mode, supersonic generator and ultrasonic transducer are located the regeneration tank below, and heating device sets up at the tank bottom.
The utility model provides a pollutant adsorption system of powdered activated carbon, water to be treated flows into an adsorption tower, and powdered activated carbon is added by a powdered activated carbon adding device for adsorbing organic matters in wastewater; the wastewater after adsorption treatment enters an ultrafiltration device, the produced water after ultrafiltration is discharged from a water production end, the concentrated water end reflows one part of the concentrated water to the adsorption tower through a backflow pipe, the other part of the concentrated water flows into a first filter, the concentrated water flows into a flocculation tank through a filtrate output end of the first filter, PAC, PAM and magnetic seeds are respectively added into the flocculation tank through a medicine adding device and a magnetic seed adding device, the sewage after flocculation reaction flows into a supermagnetic separator through a water outlet end, the water after magnetic separation flows back to the input end of the adsorption tower through a pipeline from a water outlet of the supermagnetic separator, and the sludge enters a magnetic seed recovery device through a sludge discharge end to realize the separation of the magnetic seeds and the nonmagnetic sludge; magnetic seeds are input into the flocculation tank through a pump, and sludge is discharged into a sludge tank through a sludge discharge pipe;
the utility model provides a pollutant adsorption and regeneration system of powdered activated carbon, which discharges the water to be treated after being treated by the pollutant adsorption system of powdered activated carbon from the filtrate output end of a first filter; the saturated powdered activated carbon of adsorption is exported by the saturated activated carbon output of first filter, then gets into powdered activated carbon regeneration system and regenerates, and the powdered activated carbon circulation after the regeneration is arranged in the adsorption tower.
The utility model provides a powdered activated carbon regeneration system, the powdered activated carbon that needs regeneration through first filter solid-liquid separation drops into in the preliminary treatment pond by the saturated activated carbon input in preliminary treatment pond to throw pretreatment liquid at pretreatment liquid input, be used for getting rid of the impurity on powdered activated carbon surface, and powdered activated carbon through preliminary treatment is sent into regeneration reactor after the second filter dehydration and is regenerated, and the regeneration powdered activated carbon that obtains circulates and is arranged in the adsorption tower.
The pollutant adsorption and regeneration system of the powdered activated carbon of the present invention is described in detail with reference to the attached drawings, and it should be understood that the scope of the present invention is not limited to the examples given, and all modifications or variations that meet the spirit of the present invention belong to the scope of the present invention.
Example 1
The system for adsorbing and regenerating pollutants from powdered activated carbon described in this embodiment is shown in fig. 1, and specifically includes a pollutant adsorption system and a powdered activated carbon regeneration system.
The pollutant adsorption system comprises an activated carbon adsorption tower, ultrafiltration equipment, a filter 1# and a magnetic flocculation treatment system; the powdered activated carbon regeneration system comprises a pretreatment tank, a filter 2#, a regeneration reactor and a filter 3 #;
the activated carbon adsorption tower, the ultrafiltration equipment, the filter 1# and the magnetic flocculation treatment system are sequentially connected;
the pretreatment tank, the filter 2#, the regeneration reactor and the filter 3# are connected in sequence;
the pollutant adsorption system is positioned at the upstream of the powdered activated carbon regeneration system;
the pollutant adsorption system and the powdered activated carbon regeneration system form a closed circulation system.
The powdered activated carbon feeding device is connected with the second powdered activated carbon input end of the activated carbon adsorption tower.
The activated carbon adsorption tower is provided with a water to be treated input end, a first powdered activated carbon input end, a second powdered activated carbon input end, a concentrated water reflux end, a water outlet end and a saturated activated carbon output end; first powder active carbon input is arranged in to the input in the active carbon adsorption tower the utility model provides a powdered activated carbon after the system regeneration, second powder active carbon input are arranged in inputting the powdered activated carbon of newly throwing to the active carbon adsorption tower.
The powdered activated carbon feeding device is provided with a powdered activated carbon output end connected with the input end of the activated carbon adsorption tower and a newly supplemented powdered activated carbon input end.
The ultrafiltration equipment is provided with a water inlet end, a water production end and a concentrated water outlet end, wherein the water inlet end is connected with the water outlet end of the activated carbon adsorption tower, and the concentrated water outlet end is respectively connected with the concentrated water reflux end of the activated carbon adsorption tower and the input end of the filter No. 1.
Filter 1# is equipped with input, filtrating output and saturated powder active carbon output.
The magnetic flocculation treatment system comprises a flocculation tank, a supermagnetic separator, a magnetic seed recovery device, a sludge tank, a dosing device and a magnetic seed dosing device,
the flocculation tank, the super-magnetic separator, the magnetic seed recovery device and the sludge tank are sequentially connected;
the flocculation tank is provided with a sewage inlet connected with the filtrate output end of the filter No. 1, a dosing inlet connected with a dosing device, a first magnetic seed inlet connected with a magnetic seed dosing device, a second magnetic seed inlet connected with a magnetic seed recovery device and a water outlet end connected with a supermagnetic separator.
The clear water outlet of the supermagnetic separator is connected with the inlet end of the activated carbon adsorption tower through a pipeline.
The pretreatment tank is provided with a saturated activated carbon input end, a pretreatment liquid input end and a pretreatment output end.
FIG. 2 is a schematic structural diagram of a regeneration reactor, the regeneration reactor is provided with a shell 2-1, a regeneration tank 2-2, an ultrasonic generator 2-6, an ultrasonic transducer 2-8 and a heating device 2-7, the ultrasonic generator 2-6 and the ultrasonic transducer 2-8 are positioned below the regeneration tank 2-2, and the heating device 2-7 is arranged at the bottom of the regeneration tank 2-2. The regeneration reactor is provided with a regeneration reaction input end 2-3, a regeneration liquid input end 2-4 and a regeneration reaction output end 2-5 which are connected with the filter 2 #. The regeneration reactor is also provided with a temperature control knob and a power control knob.
The water COD concentration of awaiting treatment is 60 ~ 100mg/L, adopts the utility model provides a system handles it, including following step:
s1: the water to be treated flows into an activated carbon adsorption tower, and is added into the tower by a powdered activated carbon adding device, wherein the particle size of the water is 200 meshes, the specific surface area of the water is 1000m2The powder active carbon is used for adsorbing organic matters in the wastewater;
s2: the wastewater after adsorption treatment enters an ultrafiltration device, the produced water after ultrafiltration is discharged from a water production end, one part of concentrated water flows back to an activated carbon adsorption tower through a return pipe, the other part of concentrated water flows into a filter 1#, the concentrated water flows into a flocculation tank through a filtrate output end of the filter 1#, PAC, PAM and magnetic seeds are respectively added into the flocculation tank through a drug adding device and a magnetic seed adding device, the sewage after flocculation reaction flows into a supermagnetic separator through a water outlet end, the water after magnetic separation flows back to the input end of the adsorption tower through a pipeline from a water outlet of the supermagnetic separator, and the sludge enters a magnetic seed recovery device through a sludge discharge end to realize the separation of the magnetic seeds and the nonmagnetic sludge; magnetic seeds are input into the flocculation tank through a pump, and sludge is discharged into a sludge tank through a sludge discharge pipe;
s3: the powdered activated carbon to be regenerated is fed from the saturated activated carbon input end of the pretreatment tank, pretreatment liquid is fed at the pretreatment liquid input end to remove impurities on the surface of the powdered activated carbon, the pretreated powdered activated carbon is dehydrated by a filter 2# and then is fed into a regeneration reactor for regeneration, and the obtained regenerated powdered activated carbon is circularly used in the adsorption tower.
The original powdered activated carbon and the regenerated powdered activated carbon are respectively and independently used for adsorbing organic matters by adopting the method in the step S1, and the adsorption quantity after adsorption saturation is calculated by adopting a Freundlich isotherm equation, and the result is shown in Table 1.
Wherein x/m is the adsorption capacity of powdered activated carbon per unit weight (gCOD/g activated carbon);
c is the equilibrium concentration (g/L) in the wastewater after the powdered activated carbon is adsorbed;
k. n is a constant.
The results of the examples are shown in Table 1.
Table 1 results of examples
The above description is only a preferred embodiment of the present disclosure and should not be interpreted as limiting the scope of the present disclosure, it should be noted that those skilled in the art can make various changes and modifications without departing from the spirit of the present disclosure, which falls within the protection scope of the present disclosure.
Claims (11)
1. A pollutant adsorption and regeneration system of powdered activated carbon comprises a pollutant adsorption system and a powdered activated carbon regeneration system;
the contaminant adsorption system is located upstream of the powdered activated carbon regeneration system;
the pollutant adsorption system and the powdered activated carbon regeneration system form a closed circulation system;
the pollutant adsorption system comprises an activated carbon adsorption tower, ultrafiltration equipment, a first filter and a magnetic flocculation treatment system;
the activated carbon adsorption tower, the ultrafiltration equipment, the first filter and the magnetic flocculation treatment system are sequentially connected;
the powdered activated carbon regeneration system comprises a pretreatment tank, a second filter, a regeneration reactor and a third filter;
the pretreatment pool, the second filter, the regeneration reactor and the third filter are connected in sequence.
2. The system of claim 1, wherein the activated carbon adsorption tower is provided with a water to be treated input, a concentrate return, a water outlet, and a first powdered activated carbon input.
3. The system of claim 2, wherein the activated carbon adsorption column further comprises a second powdered activated carbon input.
4. The system of claim 1, wherein the ultrafiltration device is provided with a water inlet end connected to the water outlet end of the activated carbon adsorption tower, a water production end, and a concentrate water outlet end connected to the concentrate return end of the activated carbon adsorption tower and the input end of the first filter, respectively.
5. The system of claim 1, wherein the first filter has an input, a filtrate output, and a saturated powdered activated carbon output.
6. The system according to claim 1, wherein the magnetic flocculation treatment system comprises a flocculation tank, a supermagnetic separator, a magnetic seed recovery device, a sludge tank, a dosing device and a magnetic seed dosing device,
the flocculation tank, the super-magnetic separator, the magnetic seed recovery device and the sludge tank are sequentially connected;
the flocculation tank is provided with a sewage inlet connected with the filtrate output end of the first filter, a dosing inlet connected with a dosing device, a first magnetic seed inlet connected with a magnetic seed dosing device, a second magnetic seed inlet connected with a magnetic seed recovery device and a water outlet end connected with the supermagnetic separator.
7. The system as claimed in claim 6, wherein the clear water outlet of the ultra-magnetic separator is connected with the inlet end of the activated carbon adsorption tower through a pipeline.
8. The system of claim 6, wherein the pretreatment tank is provided with a saturated activated carbon input, a pretreatment fluid input, and a pretreatment output.
9. The system of claim 1, wherein the regeneration reactor is provided with a regeneration tank, an ultrasonic generator, an ultrasonic transducer and a heating device.
10. The system of claim 9, wherein a temperature control knob and a power control knob are further provided in the regeneration reactor.
11. The system of claim 9, wherein the ultrasonic generator and ultrasonic transducer are located below the regeneration tank, and the heating device is located at the bottom of the tank.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114700059A (en) * | 2022-04-12 | 2022-07-05 | 北京工业大学 | Powdered activated carbon regeneration system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114700059A (en) * | 2022-04-12 | 2022-07-05 | 北京工业大学 | Powdered activated carbon regeneration system and method |
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