CN105366757B - A kind of circulation type adsorption tank and its adsorption method - Google Patents
A kind of circulation type adsorption tank and its adsorption method Download PDFInfo
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- CN105366757B CN105366757B CN201410422904.3A CN201410422904A CN105366757B CN 105366757 B CN105366757 B CN 105366757B CN 201410422904 A CN201410422904 A CN 201410422904A CN 105366757 B CN105366757 B CN 105366757B
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Abstract
The invention discloses a kind of circulation type adsorption tank and its adsorption method, belong to water treatment field, it is a closing adsorption tank, top is reative cell, bottom is the back taper expansion chamber for extending downwardly setting, guide shell is fixed on adsorption tank top, form separation chamber and overflow chamber, outlet pipe is opened in top, discharge pipeline is opened in bottom, the trunnion section upper end of velocity in pipes up to 1.0 1.5 meter per seconds connects and composes fluidized reactor with raising section lower end and is located therein, water inlet pipe delivery port is placed in fluidized reactor lower end, upper end is placed in guide shell, raising section exit cross-sectional area is 25 with trunnion section cross-sectional area ratio:4~9:1；Which solving prior art needs to set agitator, energy consumption is big, easily causes impact of the current to resin after sedimentation, the problem of influenceing Water quality after separation, have need not set agitator, energy consumption are low, effectively realize waste water and adsorbent be sufficiently mixed, be vortexed rising, with stable Water quality the advantages of.
Description
Technical field
The invention discloses a kind of circulation type adsorption tank and its adsorption method, belong to water treatment field.
Background technology
In field of waste water treatment, the processing to hardly degraded organic substance such as aromatic compound, heterocyclic compound is always water
The difficult point of process field, and the study hotspot in the field.At present, the conventional processing method of hardly degraded organic substance includes chemical oxygen
Change, physical absorption, the coupling processing of chemical oxidation and physical absorption.
For chemical oxidation method, catalytic ozonation is a kind of conventional hand that advanced treating can be carried out to organic wastewater
Section.The oxidisability of ozone is strong, has remarkable result for the colour of camel's hair, deodorization, sterilization, organics removal and inorganic matter, after processing
Water quality is preferable；But catalytic ozonation processing needs to configure ozone generator, the power consumption of ozone generator is big.It is in addition, smelly
The key of oxygen catalysis oxidation is ozone catalyst, and the catalytic activity of catalyst will directly affect catalytic ozonation organic wastewater
Efficiency, and the catalytic efficiency of ozone catalyst is relatively low at present, cost is higher, this to a certain degree on limit catalytic ozonation and exist
Application in water process.
Physical absorption refers to the absorption carried out by the molecular force (Van der Waals force) between adsorbent and adsorption molecule, mainly
Adsorbent be activated carbon or other porous medias.In wastewater treatment process, physisorphtion can be used as ion exchange,
The preprocess method of the methods of UF membrane, organic matter, colloid substances and chlorine residue in waste water are removed by the suction-operated of adsorbent
Deng, can also as to organic wastewater carry out advanced treating means, to ensure the quality of recycle-water.
The capital equipment that physical absorption uses according to it is classified, mainly including fixed bed, moving bed and thermopnore three
Kind.
Fixed bed is adsorbent equipment the most frequently used in wastewater treatment, because adsorbent is solid in the operating process of such a equipment
It is fixed and gain the name, that is, the solid particle adsorbent transfixion filled, the equipment that waste water continues through filling adsorbent；In waste water
During continuing through, the pollutant in waste water is adsorbed by adsorbent, so as to realize the processing to waste water.Due in fixed bed
The replacing of adsorbent is extremely difficult, therefore fixed bed is mainly used in the processing containing low concentration hardly degraded organic substance.
Moving bed is raw water to be entered and adsorbent carries out counter current contacting from adsorbent bed bottom, after processing water outlet flowed out from top
Adsorbent equipment, in moving bed, adsorbent can regenerate, the adsorbent after regeneration from top add, close to adsorption saturation
Adsorbent is discharged from bottom.Compared with fixed bed, moving bed makes full use of the adsorption capacity of adsorbent, and the loss of flood peak is small, still
Because adsorbent is flowing in moving bed, the breakage of adsorbent can be more serious than fixed bed, so will to the intensity of adsorbent
Ask higher.Simultaneously because waste water flows into from bottom of towe, flowed out from tower top, the suspension being trapped is arranged with the adsorbent of saturation from bottom of towe
Go out, the adsorbent of this fresh adsorbent of the mode of operation requirement positioned at upper strata in tower and the saturation positioned at Ta Nei lower floors can not
Mutually mix, so requirement of the moving bed to operation is higher.
The maximum difference of fluid bed and fixed bed is exactly solid absorbent is in suspended motion shape using gas or liquid
State, so that waste water can contact the longer time with solid absorbent, so as to reach more preferable water treatment effect.Fluidizing
In bed, adsorbent is in swelling state, and adsorbent inversely continuously flows with waste water, compared with fixed bed, can use less
Granule adsorbent such as powdered adsorbent, the cost of adsorbent is lower, therefore in current organic wastewater treatment process
In, fluid bed has and is more widely applied compared with fixed bed, moving bed.
In the prior art, Chinese patent literature CN102219285A, which is provided, discloses a kind of continuous-flow inner-circulation plan fluid bed
Resin ion exchanges and adsorptive reactor, and it includes reactor body shell, inclined tube separator, water collecting dike, water inlet pipe, water outlet
Pipe, in addition to reducing fluid-bed, deflector, resin regeneration tank, resin discharge pipe, regenerating resin return duct, water distribution ejector.Instead
Device main body cover bottom is answered to be connected provided with water inlet pipe with water distribution ejector, water distribution ejector is connected with reducing fluid-bed bottom,
Propeller agitator is provided with the bottom of reducing fluid-bed for making the waste water of entrance with resin and simultaneously by current direction
Lifting, sets deflector, is set between reactor body shell and deflector between reactor body shell and reducing fluid-bed
Inclined tube separator, the top of inclined tube separator set water collecting dike, and water collecting dike is connected with outlet pipe, and resin regeneration tank passes through resin
Discharge pipe and regenerating resin return duct are connected with reactor bottom, reducing fluid-bed respectively.The reactor at work, is waited to locate
The waste water of reason enters reactor through water inlet pipe, and the injection well downhole flow regulator distribution through water distribution ejector enters jet pipe, what jet pipe gushed out
Fluid and resin are sufficiently mixed vortex in the presence of agitator in reducing fluid-bed and flowed up, and in the presence of agitator
Current are lifted further up, the Contact-sorption of resin and waste water are fully realized during lifting so that in waste water
Organic matter is enriched on the surface of resin；Waste water after boosted absorption overflows from the top of reducing fluid-bed exits into reducing
In region between fluid-bed and guide shell and flow downward, during flowing downward, resin is deposited on outside main body downwards
At the cone of shell bottom, clear water is exported after the configured inclined tube separator separation outside deflector of fluid after resin deposition,
It is achieved thereby that using powdered resin or magnetic powder resin to the depth of Water purification, waste water, biochemical tail water and reclaimed water
Reason.
In above-mentioned reactor, reducing fluid-bed includes the reducer and superposed expanding reach positioned at bottom, spiral
Blade is arranged on inside the reducing fluid-bed and positioned at reducer and the position of expanding reach transition, so as to utilize propeller blade
Quick rotation realize to waste water in the reducer of bottom and resin mixture liquor be stirred and top expanding reach internal mix liquid
Vortex rise；But to be realized in the reducing fluid-bed of large volume using propeller blade to waste water and resin mixture liquor
Rising is sufficiently stirred and is vortexed, energy consumption is very big, so as to cause cost for wastewater treatment to be significantly increased.
In addition, above-mentioned reactor is at work, the waste water and resin after absorption gone out from the top overflow of reducing fluid-bed
Together flow downward, at the cone of the main body cover bottom of reactor, resin sedimentation, water body and resin separate；Due to main body
It is inclined that the cone of outer casing underpart is directed towards cone bottom, so after water body and resin separate, water body is due to above-mentioned cone
Incline direction and have trend towards cone bottom impact flow, so as to cause the impact fluctuation to resin deposition, have impact on through
The quality of water body after sedimentation separation.
The content of the invention
It is to be solved it is an object of the invention to provide the circulation type adsorption tank and its adsorption method of a kind of new structure
First technical problem is that waste water and adsorbent are sufficiently mixed in order to realize in waste water treatment reactor of the prior art
And the vortex of mixed liquor rises, it is necessary to set agitator after mixing, so that the problem of processing energy consumption increase, and then provide
It is a kind of that agitator, energy consumption need not be set low and can effectively realize that waste water and adsorbent are sufficiently mixed, are vortexed the circulation risen
Formula adsorption tank and its adsorption method.
Second technical problem to be solved be in waste water treatment reactor of the prior art after adsorption treatment
For waste water when flowing downward, the setting of cone incline direction easily causes impact of the current to the resin after sedimentation, influences through dividing
The problem of Water quality from after, and then a kind of circulation type adsorption tank with stable Water quality and its absorption side are provided
Method.
The object of the present invention is achieved like this：A kind of circulation type adsorption tank, circulation type adsorption tank are the suctions of a closing
Attached pond, adsorption tank top are reative cells, and adsorption tank bottom is the back taper expansion chamber for extending downwardly setting, and guide shell is fixed on suction
Attached pond top, the reative cell on adsorption tank top is isolated into two regions room, one is water conservancy diversion drum outer wall and the adsorption tank first half
The separation chamber formed between inwall, another is the overflow chamber that guide shell inner wall space is formed, and outlet pipe is opened in the upper of adsorption tank
Portion, discharge pipeline are opened in adsorption tank bottom, there is fluidized reactor in adsorption tank, and velocity in pipes is reached in the trunnion section of 1.0-1.5 meter per seconds
End connects and composes fluidized reactor with raising section lower end, and water inlet pipe delivery port is placed in fluidized reactor lower end, fluidized reactor
Top is placed in guide shell, and raising section exit cross-sectional area is 25 with the trunnion section cross-sectional area ratio:4~9:1；
Wherein, the trunnion section lower end of velocity in pipes up to 1.0-1.5 meter per seconds is connected with mixing chamber, mixing chamber bottom and sedimentation
Room is communicated, and water inlet pipe delivery port is placed in mixing chamber；
The height of raising section and trunnion section ratio is 3:1~4:1；
The inwall of trunnion section is provided with helical groove；
Fluidized reactor outer wall is circumferentially connected with towards the inclined baffle means of back taper expansion chamber pool wall, baffling dress
Have between the bottom put and back taper expansion chamber pool wall and be suitable to the gap that adsorbent sedimentation is fallen；
Baffle means are deflection plate, and deflection plate encloses set and is fixedly mounted on the outer wall of the fluidized reactor trunnion section, rolls over
Angle between flowing plate and horizontal plane is 30-80 degree；
Preferable angle is 55~65 degree；
Optimum angle is 60 degree；
Guide shell is to be connected by umbrella hood with adsorption tank top, and umbrella hood top is fixedly connected with adsorption tank, umbrella hood
Lower end is fixedly connected with guide shell；
The angle α of umbrella hood and horizontal plane is 145-155 degree；
The reative cell on adsorption tank top is cylindrical structural, and raising section is the inversed taper platform shape that from top to bottom internal diameter is gradually reduced
Structure；
The ratio of the internal diameter of guide shell and the reative cell internal diameter is 1:2-2:3；
The ratio of raising section maximum internal diameter and the reative cell internal diameter is 1:4-1:3；
The ratio of internal diameter is 5 at raising section maximum internal diameter and raising section minimum:2-3:1；
One end that water inlet pipe stretches into mixing chamber is provided with nozzle.
A kind of adsorption method of circulation type adsorption tank,
The first step：Adsorbent and waste water mixing；
Second step：Adsorbent and waste water are obtained after mixing fluidized reaction is sent into by water inlet pipe (1) with 1.0-1.5m/s flow velocity
Device, answer remover in pressure with being adsorbed by adsorbent under speed in waste water, with 0.1-0.15m/s flow velocity from fluidized reactor
Overflow；
3rd step：In the presence of guide shell, the water of spilling is under the limitation of guide shell inwall, along fluidized reactor top
Outer wall flows downward, and answers remover to be adsorbed agent in overflow chamber in water and further adsorbs；
4th step：Under natural gravity effect, water separates with adsorbent only, and water purification is with the 0.5-1.0mm/s rate of climb
Flowed out from the outlet pipe on separation chamber top；
Adsorbent is deposited to expansion chamber；Wherein, the adsorbent of adsorption saturation is discharged with expansion chamber bottom dirt by discharge pipeline；
The adsorbent that can also be adsorbed again is again sucked into fluidized reactor, carries out circulation absorption again.
Wherein：In the first step, adsorbent and waste water mix in water inlet pipe；
The mixed adsorbent of the first step and waste water can be pressurized；
In second step, mixed waste water and adsorbent are sprayed into the mixing chamber by water inlet pipe through nozzle, then through mixed
Close room and enter fluidized reactor；
In second step, mixed water, fluidized reactor is sent into 1.0-1.5m/s flow velocity, in the trunnion section
Under the spiral stream guidance effect of helical groove, risen in the form of vortex mixing, overflowed by fluidized reactor；
In third and fourth step, the adsorbent of adsorption saturation is dropped down onto at baffle means under overflow chamber, in baffle means (7)
On settled, adsorbent after settlement slowly flows and through baffle means bottom under the guide functions of waste water along baffle means
The bottom of the expansion chamber is fallen under gap between end and back taper expansion chamber pool wall；
In the 4th step, the current upflow velocity of separation chamber is 0.5-1.0mm/s；
In the first step to the 5th step, water total residence time from inlet water to outlet water is 2.0-3.0 hours.
The advantages of technical scheme of the present invention, is as follows：
1) because circulation type adsorption tank of the present invention employs new construction, circulation type adsorption tank is by setting trunnion
Section, using the less diameter of trunnion section, so that adsorbent and waste water after mixing can obtain when entering in trunnion section
Bigger pressure and kinetic energy are obtained, and then is converted into flow rate of water flow quickly, on the one hand ensure that adsorbent and waste water can be in larynxs
Carry out fully contacting in pipeline section, mix, lifting, on the other hand also ensure that through the mixed adsorbent of trunnion and waste water through trunnion
Section, which discharges into behind the raising section, to be overstock in trunnion section it by the pressure change from small space to large space
Kinetic energy excited in moment, significant vortex is formed in raising section, is further realized to adsorbent in raising section and waste water
It is thoroughly mixed, contacts, adsorbs, eliminate the auger that must be used in the prior art, so as to greatly reduces energy consumption.
2) due to circulation type adsorption tank raising section exit cross-sectional area of the present invention and the trunnion section cross section
Product is than being 25:4~9:1, this proportion ensure that in the trunnion mix and be vortexed rise adsorbent and waste water from
Open the trunnion to enter after the raising section, rising can be vortexed in riser with suitable water velocity, can either be real
Existing adsorbent and waste water are sufficiently mixed, reacted, additionally it is possible to make full use of the kinetic energy for the current that rising is vortexed from the trunnion；
Flow rate of water flow further ensures the waste water kinetic energy that rising is vortexed in trunnion as 1.0-1.5m/s in the trunnion section limited in addition
Play.
3) because the inwall of circulation type adsorption tank trunnion section of the present invention can set helical groove, helical groove
Setting can be such that waste water and adsorbent rises in a spiral manner around trunnion inwall when flowing through the trunnion section, not only make use of
The turbulent fluctuation of current makes the two mix more abundant, improves the utilization rate of adsorbent, more enhances adsorbent and waste water by larynx
The overstocked kinetic energy of pipeline section.
4) due to circulation type adsorption tank of the present invention, water inlet pipe outlet adds nozzle, and the convenient waste water that adjusts enters
The speed and pressure of fluidized reactor, ensure the time that waste water exchanges in circulation type adsorption tank with adsorbent；Meanwhile water inlet pipe
The charging valve of upper installation, facilitate being sufficiently mixed in advance for waste water and adsorbent, extend the swap time of waste water and adsorbent, carry
The high utilization rate of adsorbent, the rate of adsorption is high, and structure design is simple, convenient to realize.
5) due to circulation type adsorption tank of the present invention, mixing chamber is additionally provided with, the setting of mixing chamber not only increases
The utilization rate of adsorbent, further extend adsorption time, reduce energy consumption, also achieve circulation absorption, solve prior art
The problem of adsorbent can not realize continuous absorption after being separated from water, adsorbent utilization rate is low.
6) due to circulation type adsorption tank of the present invention, baffle means can also be set, adsorbent and drop down onto institute under water
State at baffle means, settled in the baffle means, the adsorbent after sedimentation fills under the guide functions of water along baffling
Slowly flowing and the bottom through falling on expansion chamber under the gap between baffle means bottom and back taper expansion chamber pool wall are put, herein
Current will not impact to the adsorbent for being deposited to expansion chamber bottom in the case of kind, so as to not interfere with the water body after separation
Quality, the Water quality of water outlet is more stable, and baffle means are simple in construction, and convenient to realize, effect is good, solves prior art
Current impact to the resin after sedimentation, and then influence the Water quality problem after separation.
7) because circulation type adsorption tank of the present invention, overflow mechanism have installed umbrella hood additional, lifted from fluidized reactor
The water of section out is guided by umbrella hood, and umbrella hood forms buffering and water conservancy diversion to current, and current trend is gentler, in the limit of guide shell
Under system, flowed downward along overflow chamber, be advantageous to exchanging for waste water and adsorbent, extend adsorption time, improve adsorbent
Utilization rate, the rate of adsorption is high, and umbrella hood is simple in construction, and convenient to realize, effect is good, is advantageous to the water after exchanging and adsorbent
Separation；Gentle current protect the separation and sedimentation of Water quality, more conducively adsorbent, solve prior art overflow mechanism
Do not have insufficient existing for umbrella hood.
8) due to circulation type adsorption tank of the present invention, various preferred structure sizes are employed, it is ensured that skill of the present invention
Art scheme realizes effect, solves the deficiency of prior art scheme.
9) adsorption method of the present invention, including mixed adsorbent and waste water are sent into trunnion section and are vortexed
The mixed at high speed risen, then enter back into raising section and occur to carry out adsorption reaction, reacted adsorbent and waste water go out from raising section
Water flows downward into overflow chamber and continues to adsorb again in overflow chamber；Water purification after being separated with adsorbent is arranged through separation chamber
Go out, adsorbent, which falls, to be settled, and the adsorbent that can be adsorbed again after sedimentation is back in fluidized reactor, with being sent from water inlet pipe
Adsorbent and the waste water mixing entered, into another wheel adsorbing separation sedimentation.The method of the invention by the trunnion section of setting and
Raising section is mixed to adsorbent and waste water, lifted, fully being contacted, and is made in the case where that need not use mechanical stirring device
Realize that the abundant contact, mixing, vortex of adsorbent and waste water rise, greatly reduce the energy consumption of wastewater treatment；
Further, since adsorbent and the mixing of undressed waste water are completed in entrance water inlet pipe, add described
The time of contact of adsorbent and waste water, the effluent characteristics of water purification, while circulating by adsorbent are further increased, is carried
High adsorbent utilization rate.
Brief description of the drawings
Fig. 1 is the structural representation of the circulation type adsorption tank in embodiment 8 of the present invention.
Fig. 2 is the structural representation of the circulation type adsorption tank in embodiment 4 of the present invention.
Fig. 3 is the structural representation of the circulation type adsorption tank in embodiment 1 of the present invention.
Fig. 4 is the structural representation of the circulation type adsorption tank in embodiment 2 of the present invention.
Fig. 5 is the structural representation of the circulation type adsorption tank in embodiment 3 of the present invention.
Wherein, reference is：1- water inlet pipes, 2- outlet pipes, 3- discharge pipelines, 4- raising sections, 5- trunnion sections, 6- mixing
Room, 7- baffle means, 8- guide shells, 9- umbrella hoods, 10- nozzles, 11- overflow chambers, 12- separation chambers, 13- downflow weirs, 14- absorption
Pond, 15- expansion chambers.
In order that present disclosure easily facilitates understanding, with reference to the accompanying drawings and examples to technology of the present invention
Scheme is further elaborated.
Embodiment
Embodiment 1
A kind of circulation type adsorption tank and its adsorption method, as shown in figure 3, circulation type adsorption tank includes the absorption of a closing
Pond 14, guide shell 8, water inlet pipe 1, outlet pipe 2 and discharge pipeline 3；
Adsorption tank 14 divides the back taper sedimentation that setting is extended downwardly for two parts, superposed reative cell and positioned at bottom
Room, reative cell is cylinder in the present embodiment；
Fluidized reactor is provided with adsorption tank 14, fluidized reactor includes from top to bottom connecting the raising section 4 of setting
With trunnion section 5.
Raising section 4 is back taper, and from top to bottom internal diameter progressively reduces；
The ratio of internal diameter is 5 at the maximum internal diameter of raising section 4 and the minimum of raising section 4:2~3：1, can be specifically：5：2 or
5：1 or 4：2 or 4：1 or 3：2 or 3：1 or 5:2~3：Other numerical value between 1；I.e.：As selectable embodiment, carry
5 can be selected by rising the ratio of internal diameter at the maximum internal diameter of section 4 and the minimum of raising section 4:2-3:Any value in the range of 1；
Trunnion section 5 is hollow cylindrical tube；
The exit cross-sectional area of raising section 4 is 25 with the cross-sectional area ratio of trunnion section 5:4~9:1, can be specifically 25:4 or
9:1 or 24：4 or 23：4 or 22：4 or 21：4 or 20：4 or 19：4 or 18：4 or 17：4 or 16：4 or 15：4 or
14：4 or 13：4 or 12：4 or 11：4 or 10：4 or 9：4 or 24：3 or 23：3 or 22：3 or 21：3 or 20：3 or
19：3 or 18：3 or 17：3 or 16：3 or 15：3 or 14：3 or 13：3 or 12：3 or 11：3 or 10：3 or 9：3 or
24：2 or 23：2 or 22：2 or 21：2 or 20：2 or 19：2 or 18：2 or 17：2 or 16：2 or 15：2 or 14：2 or
13：2 or 12：2 or 11：2 or 10：2 or 9：2 or 24：1 or 23：1 or 22：1 or 21：1 or 20：1 or 19：1 or
18：1 or 17：1 or 16：1 or 15：1 or 14：1 or 13：1 or 12：1 or 11：1 or 10：1 or 25:4~9:Between 1
Other numerical value；That is, as selectable embodiment, the exit cross-sectional area of raising section 4 and the cross-sectional area ratio of trunnion section 5 can
To select 25:4-9:Any value in the range of 1；
The height of raising section 4 and trunnion section 5 ratio is 3：1~4:1, can be specifically 3：1 or 3.5：1 or 4：1 or 3：1
~4:Other numerical value between 1；That is, as selectable embodiment, the height ratio of raising section 4 and trunnion section 5 can select be
3:1-4:Any value in the range of 1；
By setting trunnion section 5, using 5 less diameter of trunnion section, so that adsorbent and waste water after mixing
Bigger pressure can be obtained when entering in trunnion section 5, ensure that adsorbent and waste water can be in trunnion sections 5 and raising section 4
Interior progress is sufficiently mixed, lifted, contact, the auger that must be used in the prior art is eliminated, so as to greatly reduce
Energy consumption；
In addition, the inwall of trunnion section 5 is also provided with helical groove, the setting of helical groove can make waste water and absorption
Agent rises around the trunnion inwall in a spiral manner when flowing through the trunnion section 5, so as to extend adsorbent and waste water in institute
The time of contact in trunnion is stated, the two is mixed more abundant using the turbulent fluctuation of current, improves adsorbent utilization rate.
The ratio of the maximum internal diameter of raising section 4 and the reative cell internal diameter is 1：4~1:3, can be specifically 1：4 or
1：3.5 or 1：3 or 1：4~1:Other numerical value between 3；That is, as selectable embodiment, in the maximum of raising section 4
The ratio between footpath and reative cell internal diameter can select 1:4-1:Any value in the range of 3.
The fluidized reactor top being fixed on conventional fixed form in circulation type adsorption tank is provided with guide shell 8, water conservancy diversion
8 upper ends of cylinder are fixed on the top of adsorption tank 14；
The internal diameter of guide shell 8 and the ratio of reative cell internal diameter are 1:2~2:3, can be specifically：1:2 or 1:3 or 2:2 or
2:3 or 1:2~2:Other numerical value between 3；That is, as selectable embodiment, internal diameter and the reative cell internal diameter of guide shell 8
Ratio can select 1:2~2:Any value in the range of 3；
The height of guide shell 8 compares for 1 with the height of adsorption tank 14:3~2：5, can be specifically：1：3 or 1：4 or 1：5 or
2：3 or 2：4 or 2：5 or 1:3~2：Other numerical value between 5；That is, as selectable embodiment, the height of guide shell 8
Degree can select 1 with the height of adsorption tank 14:3~2：Any value in the range of 5.
Reative cell is divided into the separation chamber 12 outside the guide shell 8 by guide shell 8, and in the guide shell 8
Overflow chamber 11 outside portion, fluidized reactor.
Water inlet pipe 1 enters from the bottom of adsorption tank 14, and the water outlet end of water inlet pipe 1 can be provided with nozzle 10, water inlet tube of intaking
End position can be provided with a charging valve, and adsorbent can add in water inlet pipe 1 to be mixed with waste water by charging valve,
Mixed waste water is pressed into fluidized reactor by nozzle 10；Outlet pipe 2 is opened in the side wall of the top separation chamber 12 of adsorption tank 14,
Clear water flows out adsorption tank 14 by downflow weir 13 through outlet pipe 2；Discharge pipeline 3 is opened in the bottom of expansion chamber 15 described in the bottom of adsorption tank 14
Portion, the adsorbent for adsorbing waste water discharge adsorption tank 14 together with impurity sedimentation thing by discharge pipeline 3.
The adsorption method of above-mentioned circulation type adsorption tank is：
Adsorbent can add water inlet pipe 1 by charging valve and be mixed with waste water；
Mixed adsorbent and waste water can be pressurized, and be sent into by nozzle 10 in fluidized reactor, anti-in the fluidisation
Answer in the trunnion section 5 of device vortex mixing and rise that (if the inwall of trunnion section 5 has helical groove, water is led in the spiral of helical groove
Stream effect is lower to carry out vortex mixing and rising), flow velocity is 1.0-1.5 meter per seconds in trunnion section, can be specifically 1.0 meter per seconds,
Or 1.25 other flow velocitys between meter per second or 1.5 meter per seconds, or 1.0-1.5 meter per seconds；
Adsorption reaction is carried out subsequently into raising section 4, reacted adsorbent and water flow out from raising section 4, and raising section 4 goes out
Mouthful flow rate of water flow is 0.1-0.15 meter per seconds, can be specifically 0.1 meter per second or 0.15 meter per second or 0.125 meter per second, or 0.1-
Other flow velocitys between 0.15 meter per second；
Under the guiding of overflow mechanism guide shell 8, the water and adsorbent of spilling flow downward and overflow into overflow chamber 11
Continue to adsorb again in flow chamber 11；
Under natural gravity, water purification separates with adsorbent, and water purification enters separation chamber 12, and water purification current upflow velocity is 0.5-
1.0mm/s, can be specifically other flow velocitys between 0.5mm/s or 1mm/s or 0.75mm/s, or 0.5-1.0mm/s, water purification quilt
Downflow weir 13 is collected, and is discharged by outlet pipe 2；Adsorbent, which falls, is deposited to the bottom of expansion chamber 15, wherein, it can be adsorbed again
Adsorbent under siphonage power, sucked again in fluidized reactor with being mixed from the adsorbent sent of entrance pipe 1 and waste water
Close, be fed again into trunnion section 5, realize that the backflow of adsorbent recycles；The adsorbent that can not be adsorbed again is with expansion chamber 15
The dirt of bottom is discharged by discharge pipeline 3；
Water is 2.0-3.0 hours in adsorption tank total residence time from water inlet pipe 1 to outlet pipe 2, can be specifically 2 hours,
Or the other times of 2.5 hours or 3 hours or 2.0-3.0 small times.
Embodiment 2
A kind of circulation type adsorption tank and its adsorption method, as shown in figure 4, it is only to flow that it is different from the structure of embodiment 1
Change and be terminated with mixing chamber 6 under reactor trunnion section 5, the top of mixing chamber 6 is umbrella-shaped structure, and the bottom of mixing chamber 6 is cylindrical knot
Structure, the umbrella-shaped structure of mixing chamber 6 and the cylindrical structural closing of bottom connect, the umbrella-shaped structure top drilling of mixing chamber 6 and trunnion
The sealing docking of section 5, the bottom of mixing chamber 6 communicates with expansion chamber 15；
Water inlet pipe 1 enters from the bottom of adsorption tank 14, the nozzle 10 of the water outlet end of water inlet pipe 1 extend into the mixing chamber 6 it
It is interior；Other structures are same as Example 1.
When above-mentioned circulation type adsorption tank is adsorbed, as different from Example 1：Through entering after adsorbent and waste water are mixed
Water pipe 1 inputs, and is sprayed into through nozzle 10 in the mixing chamber 6, then blended room 6 enters the trunnion section 5；
In addition, the adsorbent flowed out from raising section 4 falls along overflow chamber 11, the expansion chamber being deposited under the mixing chamber 6
15 bottoms, moreover it is possible to the adsorbent adsorbed is sent into trunnion section 5 under siphonage together with water by suction mixing chamber 6 again,
Carry out the absorption again to waste water；Other processes are same as Example 1.
Embodiment 3
A kind of circulation type adsorption tank and its adsorption method, as shown in figure 5, it different from the structure of embodiment 1 is only：
It is connected to along fluidized reactor bottom outer wall is circumferentially fixed towards the inclined folding of the pool wall of back taper expansion chamber 15
Device 7 is flowed, baffle means 7 can be deflection plate (or deflector cup), and the bottom of the deflection plate (cover) sinks with the back taper
Have between the drop pool wall of room 15 and be suitable to the gap that adsorbent sedimentation is fallen；Deflection plate can be fan-shaped by two pieces or three pieces or polylith
Plate is fixedly connected along fluidized reactor outer wall, does not have gap between plate and plate, forms a umbrella-shaped structure；
Angle between deflection plate and horizontal plane is 30-80 degree, the preferable angle between deflection plate and horizontal plane is 55~
65 degree, optimum angle between deflection plate and horizontal plane is 60 degree, can be specifically 30 degree, 35 degree, 40 degree, 45 degree, 50 degree, 55
Degree, 60 degree, 65 degree, 70 degree, 75 degree, other angles between 80 degree, or 30~80 degree；That is, it is described as the alternative scheme of implementation
Angle between baffle means and horizontal plane can select any value in 30-80 degree.
The baffle means 7 can make the adsorbent to get off from overflow chamber 11 and drop down onto under water at the baffle means 7,
Settled in the baffle means 7, baffle means 7 described in guide functions lower edge of the adsorbent in water after settlement slowly flow
It is dynamic and through falling on the bottom of the expansion chamber 15 under the distance between the bottom of baffle means 7 and the back taper expansion chamber pool wall
End, current will not impact to the adsorbent for being deposited to the bottom of expansion chamber 15 in this case, not interfere with after separation
Water quality, make the Water quality of water outlet more stable.
Other structures are same as Example 1.
When above-mentioned circulation type adsorption tank is adsorbed, as different from Example 1：The adsorbent to be fallen from overflow chamber 11 sinks
At deflection plate, deflection plate described in guide functions lower edge of the adsorbent in water after sedimentation slowly flows and through the deflection plate drop
The bottom of sedimentation Room 15 is fallen under gap between bottom and the back taper expansion chamber pool wall.
Other are same as Example 1.
Embodiment 4
A kind of circulation type adsorption tank and its adsorption method, as shown in Fig. 2 it different from the structure of embodiment 2 is only：
It is connected to along fluidized reactor bottom outer wall is circumferentially fixed towards the inclined folding of the pool wall of back taper expansion chamber 15
Device 7 is flowed, baffle means 7 can be deflection plate (or deflector cup), and the bottom of the deflection plate (cover) sinks with the back taper
Have between the drop pool wall of room 15 and be suitable to the gap that adsorbent sedimentation is fallen；Deflection plate can be fan-shaped by two pieces or three pieces or polylith
Plate is fixedly connected along fluidized reactor outer wall, it is ensured that is not had gap between plate and plate, is formed a umbrella-shaped structure；
Angle between deflection plate and horizontal plane is 30-80 degree, the preferable angle between deflection plate and horizontal plane is 55~
65 degree, optimum angle between deflection plate and horizontal plane is 60 degree, can be specifically 30 degree, 35 degree, 40 degree, 45 degree, 50 degree, 55
Degree, 60 degree, 65 degree, 70 degree, 75 degree, other angles between 80 degree, or 30~80 degree；That is, described baffle means and horizontal plane it
Between angle can select any value in 30-80 degree；
Other structures are same as Example 2.
Substantially the same manner as Example 2 when above-mentioned circulation type adsorption tank is adsorbed, different is only：Under overflow chamber 11
The adsorbent fallen is deposited at deflection plate, and deflection plate described in guide functions lower edge of the adsorbent after sedimentation in water slowly flows simultaneously
Through the bottom that sedimentation Room 15 are fallen under the gap between the deflection plate bottom and the back taper expansion chamber pool wall.
Embodiment 5
A kind of circulation type adsorption tank and its adsorption method, it is essentially identical with the structure of embodiment 1, and different is only：
Overflow mechanism is made up of guide shell 8 and umbrella hood 9, i.e., on the top of guide shell 8, using fluidized reactor axis in
The heart, umbrella hood 9, the top of umbrella hood 9 and plane fixed seal connection on adsorption tank 14, umbrella shape are provided with above fluidized reactor
Bottom and the upper end inwall fixed seal connection of guide shell 8 of cover 9, the angle of the umbrella hood 9 and horizontal plane 130-160 degree it
Between, can be in the range of 135 degree or 140 degree or 145 degree or 150 degree or 155 degree or 160 degree, or 130~160 degree
Other any values.
Substantially the same manner as Example 1 when being adsorbed using above-mentioned circulation type adsorption tank, different is：From lifting
The water and adsorbent that section 4 comes out are by the water conservancy diversion of umbrella hood 9, and the stop of guide shell 8, are flowed from overflow chamber 11 is gentle downwards
Dynamic.
Embodiment 6
A kind of circulation type adsorption tank and its adsorption method, it is essentially identical with the structure of embodiment 2, and different is：
Overflow mechanism is made up of guide shell 8 and umbrella hood 9, i.e., on the top of guide shell 8, using fluidized reactor axis in
The heart, umbrella hood 9, the top of umbrella hood 9 and plane fixed seal connection on adsorption tank 14, umbrella shape are provided with above fluidized reactor
Bottom and the upper end inwall fixed seal connection of guide shell 8 of cover 9, the angle of the umbrella hood 9 and horizontal plane 130-160 degree it
Between, can be in the range of 135 degree or 140 degree or 145 degree or 150 degree or 155 degree or 160 degree, or 130~160 degree
Other any values.
Substantially the same manner as Example 2 when being adsorbed using above-mentioned circulation type adsorption tank, different is：From lifting
The water and adsorbent that section 4 comes out are by the water conservancy diversion of umbrella hood 9, and the stop of guide shell 8, are flowed from overflow chamber 11 is gentle downwards
Dynamic.
Embodiment 7
A kind of circulation type adsorption tank and its adsorption method, it is essentially identical with the structure of embodiment 3, and different is：
Overflow mechanism is made up of guide shell 8 and umbrella hood 9, i.e., on the top of guide shell 8, using fluidized reactor axis in
The heart, umbrella hood 9, the top of umbrella hood 9 and plane fixed seal connection on adsorption tank 14, umbrella shape are provided with above fluidized reactor
Bottom and the upper end inwall fixed seal connection of guide shell 8 of cover 9, the angle of the umbrella hood 9 and horizontal plane 130-160 degree it
Between, can be in the range of 135 degree or 140 degree or 145 degree or 150 degree or 155 degree or 160 degree, or 130~160 degree
Other any values.
Substantially the same manner as Example 3 when being adsorbed using above-mentioned circulation type adsorption tank, different is：From lifting
The water and adsorbent that section 4 comes out are by the water conservancy diversion of umbrella hood 9, and the stop of guide shell 8, are flowed from overflow chamber 11 is gentle downwards
Dynamic.
Embodiment 8
A kind of circulation type adsorption tank and its adsorption method, as shown in figure 1, it is essentially identical with the structure of embodiment 4, it is different
Simply：
Overflow mechanism is made up of guide shell 8 and umbrella hood 9, i.e., on the top of guide shell 8, using fluidized reactor axis in
The heart, umbrella hood 9, the top of umbrella hood 9 and plane fixed seal connection on adsorption tank 14, umbrella shape are provided with above fluidized reactor
Bottom and the upper end inwall fixed seal connection of guide shell 8 of cover 9, the angle of the umbrella hood 9 and horizontal plane 130-160 degree it
Between, can be in the range of 135 degree or 140 degree or 145 degree or 150 degree or 155 degree or 160 degree, or 130~160 degree
Other any values.
Substantially the same manner as Example 4 when being adsorbed using above-mentioned circulation type adsorption tank, different is：From lifting
The water and adsorbent that section 4 comes out are by the water conservancy diversion of umbrella hood 9, and the stop of guide shell 8, are flowed from overflow chamber 11 is gentle downwards
Dynamic.
I.e. adsorption method can be：
Adsorbent adds water inlet pipe 1 by charging valve and mixed with waste water；
Mixed adsorbent and waste water can be pressurized, and mixing chamber 6 is sent into by nozzle 10；
The diameter of mixing chamber 6 is big, and the diameter of trunnion section 5 is small, and accessing pending water with pressure sucks throat section 5 by mixing chamber 6, in vortex
Mixed at high speed is risen, (if the inwall of trunnion section 5 has helical groove, it is mixed that water carries out vortex under the spiral stream guidance effect of helical groove
Close and rise), flow rate of water flow be 1.0-1.5m/s in trunnion section 5, such as 1.0 meter per seconds or 1.25 meter per seconds or 1.5 meter per seconds, or
1.0-1.5 other flow velocitys between meter per second；
Adsorption reaction is carried out subsequently into raising section 4, the outlet stream flow velocity of raising section 4 is 0.1-0.15m/s, such as 0.1 meter/
Second or other flow velocitys between 0.15 meter per second or 0.125 meter per second, or 0.1-0.15 meter per seconds；
Reacted adsorbent and waste water go out from raising section 4, by the water conservancy diversion of umbrella hood 9, and the stop of guide shell 8,
Gently flowed downwards from overflow chamber 11, adsorbent and waste water continue to exchange again in overflow chamber 11；
Under natural gravity, water purification separates with adsorbent, and water purification enters separation chamber 12, and water purification current upflow velocity is 0.5-
1.0mm/s, can be specifically other flow velocitys between 0.5mm/s or 1mm/s or 0.75mm/s, or 0.5-1.0mm/s, water purification quilt
Downflow weir 13 is collected, and is discharged by outlet pipe 2；
Adsorbent is deposited at deflection plate, and deflection plate described in guide functions lower edge of the adsorbent after sedimentation in water slowly flows
Move and through falling on the bottom for settling Room 15 under the gap between the deflection plate bottom and the back taper expansion chamber pool wall；
Wherein, the adsorbent that can be adsorbed again under siphonage power, sucked again in mixing chamber 6 with from entrance
Adsorbent and the waste water mixing that pipe 1 is sent, are fed again into trunnion section 5, realize that the backflow of adsorbent recycles；It can not carry out again
The adsorbent of absorption is discharged with the dirt of the bottom of expansion chamber 15 by discharge pipeline 3；
Water is 2.0-3.0 hours in adsorption tank total residence time from water inlet pipe 1 to outlet pipe 2, can be specifically 2 hours,
Or the other times of 2.5 hours or 3 hours or 2.0-3.0 small times.
In the above-described embodiments, it is to enter as preferred embodiment, the mixing of adsorbent and undressed waste water
Enter what is completed before water inlet pipe 1, can so extend the time of contact of adsorbent and waste water, so as to which that improves water purification goes out water quality
Amount；
As selectable embodiment, untreated waste water can also input through water inlet pipe 1, with being settled down to the absorption
The adsorbent in bottom of pond portion enters trunnion section 5 after being mixed in the mixing chamber 6.
It is worth noting that, the circulation type adsorption tank in above-described embodiment is transversal by the raising section 4 of restriction and trunnion section 5
The proportionate relationship in face realizes a kind of adsorption method of circulation type adsorption tank, if the cross-sectional area of raising section 5 is gradual change,
The cross-sectional area of so described raising section 5 refers to the cross-sectional area of raising section water outlet, still, for raising section 4 and larynx
A kind of technological means of the adsorption method is simply realized in the restriction of the proportionate relationship of the cross section of pipeline section 5, can also pass through restriction
The proportionate relationship between other structures in circulation type adsorption tank is realized, as long as it is 1.0- that can reach flow rate of water flow in trunnion
1.5m/s, the outlet stream flow velocity of raising section 4 are 0.1-0.15m/s, the current upflow velocity of the separation chamber 12 is 0.5-
The process conditions that 1.0mm/s, waterpower total residence time from inlet water to outlet water are 2.0-3.0h, all fall in ring of the present invention
Within the protection domain of the adsorption method of streaming adsorption tank.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (15)
- A kind of 1. circulation type adsorption tank, it is characterised in that：Circulation type adsorption tank be one closing adsorption tank (14), adsorption tank (14) top is reative cell, and adsorption tank (14) bottom is the expansion chamber (15) for extending downwardly setting, and guide shell (8) is fixed on absorption Pond (14) top, the reative cell on adsorption tank (14) top is isolated into two regions room, one is guide shell (8) outer wall and absorption The separation chamber (12) formed between pond (14) first half inwall, another is the overflow chamber that guide shell (8) inner wall space is formed (11), outlet pipe (2) is opened in the top of adsorption tank (14), and discharge pipeline (3) is opened in adsorption tank (14) bottom, had in adsorption tank (14) Fluidized reactor, velocity in pipes connect and compose fluidisation instead up to trunnion section (5) upper end of 1.0-1.5 meter per seconds and raising section (4) lower end Device is answered, water inlet pipe (1) delivery port is placed in fluidized reactor lower end, and fluidized reactor top is placed in guide shell (8), raising section (4) exit cross-sectional area and trunnion section (5) the cross-sectional area ratio are 25:4~9:1；Trunnion section (5) lower end of velocity in pipes up to 1.0-1.5 meter per seconds is connected with mixing chamber (6), mixing chamber (6) bottom and sedimentation Room (15) is communicated, and water inlet pipe (1) delivery port is placed in mixing chamber (6)；The height ratio of the raising section (4) and the trunnion section (5) is 3:1~4:1；The inwall of the trunnion section (5) is provided with helical groove；Circumferentially it is connected with towards the inclined baffle means of expansion chamber (15) pool wall (7), institute along the fluidized reactor outer wall State to have between the bottom of baffle means (7) and the expansion chamber (15) pool wall and be suitable to the gap that adsorbent sedimentation is fallen；The baffle means (7) are deflection plate, and the deflection plate encloses set and is fixedly mounted on the fluidized reactor trunnion section (5) On outer wall, the angle between deflection plate and horizontal plane is 30-80 degree；Guide shell (8) is to be connected by umbrella hood (9) with adsorption tank (14) top, and umbrella hood (9) top is solid with adsorption tank (14) Fixed connection, umbrella hood (9) lower end is fixedly connected with guide shell (8)；The angle α of umbrella hood (9) and horizontal plane is 145-155 degree.
- A kind of 2. circulation type adsorption tank as claimed in claim 1, it is characterised in that：Angle between deflection plate and horizontal plane is 55~65 degree.
- A kind of 3. circulation type adsorption tank as claimed in claim 1, it is characterised in that：Angle between deflection plate and horizontal plane is 60 degree.
- A kind of 4. circulation type adsorption tank as described in claim 1 or 2 or 3, it is characterised in that：Adsorption tank (14) top Reative cell is cylindrical structural, and the raising section (4) is the inversed taper platform shape structure that from top to bottom internal diameter is gradually reduced.
- A kind of 5. circulation type adsorption tank as claimed in claim 4, it is characterised in that：The internal diameter of the guide shell (8) with it is described The ratio of reative cell internal diameter is 1:2-2:3.
- A kind of 6. circulation type adsorption tank as claimed in claim 4, it is characterised in that：Raising section (4) the maximum internal diameter with The ratio of the reative cell internal diameter is 1:4-1:3.
- A kind of 7. circulation type adsorption tank as claimed in claim 5, it is characterised in that：Raising section (4) the maximum internal diameter with The ratio of the reative cell internal diameter is 1:4-1:3.
- A kind of 8. circulation type adsorption tank as described in claim 1 or 2 or 3 or 5 or 6 or 7, it is characterised in that：The raising section (4) ratio of the minimum place's internal diameter in maximum internal diameter and the raising section (4) is 5:2-3:1.
- A kind of 9. circulation type adsorption tank as claimed in claim 4, it is characterised in that：Raising section (4) the maximum internal diameter and The ratio of internal diameter is 5 at raising section (4) minimum:2-3:1.
- A kind of 10. circulation type adsorption tank as described in claim 1 or 2 or 3 or 5 or 6 or 7 or 9, it is characterised in that：Described One end that water inlet pipe (1) stretches into the mixing chamber (6) is provided with nozzle (10).
- A kind of 11. circulation type adsorption tank as claimed in claim 4, it is characterised in that：Stretched into the water inlet pipe (1) described mixed The one end for closing room (6) is provided with nozzle (10).
- A kind of 12. circulation type adsorption tank as claimed in claim 8, it is characterised in that：Stretched into the water inlet pipe (1) described mixed The one end for closing room (6) is provided with nozzle (10).
- A kind of 13. adsorption method of circulation type adsorption tank of any one of the claims 1~12, it is characterised in that：The first step：Adsorbent and waste water mixing；Second step：Adsorbent and waste water are obtained after mixing fluidized reactor is sent into by water inlet pipe (1) with 1.0-1.5m/s flow velocity, given up Answer remover in pressure with being adsorbed by adsorbent under speed in water, overflowed with 0.1-0.15m/s flow velocity from fluidized reactor；3rd step：In the presence of guide shell (8), the water of spilling is under the limitation of guide shell (8) inwall, along fluidized reactor Portion's outer wall flows downward, and answers remover to be adsorbed agent in overflow chamber (11) in water and further adsorbs；4th step：Natural gravity effect under, water separates with adsorbent only, water purification with the 0.5-1.0mm/s rate of climb from point Outlet pipe (2) from room (12) top flows out；Adsorbent is deposited to expansion chamber (15)；Wherein, the adsorbent of adsorption saturation with expansion chamber (15) bottom dirt by discharge pipeline (3) discharge；The adsorbent that can also be adsorbed again is again sucked into fluidized reactor, carries out circulation absorption again.
- A kind of 14. adsorption method of circulation type adsorption tank as claimed in claim 13, it is characterised in that：In the first step, adsorbent and waste water mix in water inlet pipe (1)；The mixed adsorbent of the first step and waste water are pressurized；In second step, mixed waste water and adsorbent are sprayed into the mixing chamber (6) by water inlet pipe (1) through nozzle (10), Blended room (6) enters fluidized reactor again；In second step, mixed water, fluidized reactor is sent into 1.0-1.5m/s flow velocity, in the trunnion section (5) Under the spiral stream guidance effect of helical groove, risen in the form of vortex mixing, overflowed by fluidized reactor；In third and fourth step, the adsorbent of adsorption saturation drops down onto baffle means (7) place under overflow chamber (11), in the baffling Device is settled on (7), and baffle means (7) described in guide functions lower edge of the adsorbent in waste water after settlement slowly flow And through falling on the bottom of the expansion chamber (15) under the gap between the baffle means (7) bottom and the expansion chamber (15) pool wall End；In the 4th step, the current upflow velocity of the separation chamber (12) is 0.5-1.0mm/s.
- A kind of 15. adsorption method of circulation type adsorption tank as described in claim 13 or 14, it is characterised in that：Arrived in the first step 4th step, water total residence time from inlet water to outlet water is 2.0-3.0 hours.
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| CN108083504A (en) * | 2017-12-28 | 2018-05-29 | 广西壮族自治区环境保护科学研究院 | Sanitary sewage settler |
| CN109437417A (en) * | 2018-09-18 | 2019-03-08 | 江苏澳洋生态园林股份有限公司 | Motor driven static state black and odorous water quick treatment device |
| CN109437421A (en) * | 2018-11-21 | 2019-03-08 | 广西飞鹏环保科技有限公司 | Bell-jar baffling boiler filter for ash water |
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| CN111003746B (en) * | 2019-12-31 | 2023-04-11 | 内蒙古万众炜业科技环保股份公司 | Semi-coke wastewater treatment device and treatment method thereof |
| CN113149095A (en) * | 2021-03-26 | 2021-07-23 | 王丹芬 | Prevent sewage treatment plant at end of mud sinking |
| CN114314792A (en) * | 2021-11-25 | 2022-04-12 | 合肥供水集团有限公司 | Full-automatic dechlorinating device for high-chlorine-content wastewater treatment |
| CN114262036A (en) * | 2021-12-27 | 2022-04-01 | 南京环保产业创新中心有限公司 | Magnetic resin advanced treatment system and method |
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