CN104402100B - The preparation method and applications of the inorganic flocculating agent with vermiculite mineral as raw material - Google Patents
The preparation method and applications of the inorganic flocculating agent with vermiculite mineral as raw material Download PDFInfo
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- CN104402100B CN104402100B CN201410553661.7A CN201410553661A CN104402100B CN 104402100 B CN104402100 B CN 104402100B CN 201410553661 A CN201410553661 A CN 201410553661A CN 104402100 B CN104402100 B CN 104402100B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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Abstract
The present invention relates to the preparation method of a kind of inorganic flocculating agent with vermiculite mineral as raw material, comprise the following steps: (1). select metallic iron element and the high Vermiculitum of aluminium element content, by Vermiculitum raw material pulverizing；(2). the Vermiculitum after pulverizing mixes with acid solution, and is stirred vigorously to pasty state, after 25 90 DEG C of heating in water bath 1 8h, i.e. can get the gluey flocculant of sticky pulpous state.The present invention is a kind of economy, the preparation method of efficient, safe water treatment flocculant, and using the inorganic mineral material flocculant prepared by this method is sticky jelly, and its surface particles is rough loose structure.Relatively there is significant change mutually without the thing of mineral material inner element during peracid modification, create good conditions for flocculation.Inorganic flocculating agent has preferable dispersibility, and operable condition and range is wide, and strong adaptability, water treatment efficiency are good, use the plurality of advantages such as safety non-pollution.
Description
Technical field
The present invention relates to water and pollute processing technology field, a kind of inorganic flocculation with vermiculite mineral as raw material
The preparation method and applications of agent.
Background technology
Currently, World Water pollution becoming serious, the application demand of water technology is increased the most day by day.Its
In, flocculent precipitation is method relatively broad in water treatment applications, its have economical and efficient, technique simple,
The advantage such as easy to operate, the method is widely used in desalinization, prepared by drinking water, cultivating wastewater purification, send out
The fields such as ferment waste water processes, food processing and building dredging work, therefore, develop and exploiting economy, efficiently,
One of water treatment flocculant important research direction being always domestic and international researcher of safety.
In inorganic, organic, microorganism and the big class flocculant of composite flocculation agent 4, inorganic flocculating agent is a kind of weight
Want and conventional flocculant.Inorganic flocculating agent conventional in the industry is the Polyferric Sulfate of synthetic, the flocculation of poly-aluminum class
Agent, in use there is many defects in this type of flocculant: 1, the metal ion content in flocculant is high, and logical
Often existing with polymerization state, metallic iron ion and aluminium ion under polymerization state have toxicity, to human body and biology
Hazardness is very big, and the Polyferric Sulfate of the most this synthetic, poly-aluminum class inorganic flocculating agent cannot be used for cultivating class, scape
See the Treatment for Reuse process of class.2, there is toxicity due to flocculant, the most also can produce secondary pollution, to ring
Border and human body work the mischief.3, the Polyferric Sulfate of synthetic, poly-aluminum class inorganic flocculating agent are expensive, cause water
Processing cost increases.
Summary of the invention
In place of it is an object of the invention to make up the deficiencies in the prior art, it is provided that a kind of water treatment efficiency is good, make
Low by safety non-pollution, price and be especially suitable for processing containing zoic view class and cultivation class water body
The preparation method and applications of the inorganic flocculating agent with vermiculite mineral as raw material.
It is an object of the invention to be realized by techniques below means:
A kind of preparation method of the inorganic flocculating agent with vermiculite mineral as raw material, it is characterised in that: include following
Step:
(1). select metallic iron element and the high Vermiculitum of aluminium element content, by Vermiculitum raw material pulverizing 1-4min so that it is
Mean diameter is 129.5-213.5 μm；
(2). the Vermiculitum after pulverizing mixes with acid solution, and is stirred vigorously to pasty state, at 25-90 DEG C of water
After bath heating 1-8h, i.e. can get sticky pulpous state flocculant.
And, the metallic iron element in metallic iron element that step is (1) described and the high Vermiculitum of aluminium element content
Mass fraction is: 12-14%；The mass fraction of metallic aluminium element is: 25-29%.
And, the Vermiculitum after the pulverizing that step is (2) described is 0.7-1.5:1 with the mass ratio of acid solution.
And, the (2) described acid solution of step is sulphuric acid, hydrochloric acid or oxalic acid, and the mass fraction of acid solution is
10-40%.
And, the flocculant of sticky pulpous state step (2) prepared adds the distilled water of certain mass, flocculant
It is 1:5-10 with the mass ratio of water, then mixes, filter, i.e. can get liquid flocculant.
And, the flocculant of sticky pulpous state step (2) prepared, at 105 DEG C, is dried 4-6h, and pulverizing is ground
Mill i.e. can get powder flocculant.
A kind of application of the inorganic flocculating agent with vermiculite mineral as raw material, it is characterised in that: use purified treatment
This inorganic flocculating agent is quickly stirred by the flash mixer in device with cultivation water or landscape water or industry water,
Mixing speed is 100r/min 200r/min, water body time of staying average out to 1min 5min in a device,
Flocculant is allowed to mix homogeneously with the water of process, the stability of rapid damage water-borne glue body, make colloid become neutrality
Granule；Then the slow stirrer that the water body after preliminary purification introduces in purifying processing device is stirred at a slow speed
Mixing, mixing speed is 30r/min 60r/min, water body time of staying average out to 10min in a device
20min。
And, described purifying processing device includes feed arrangement, screw feeder, flash mixer, slow
Speed agitator and moving body, feed arrangement includes cylinder, arranges charging aperture in the upper end of cylinder, and lower end is arranged
Discharging opening, this discharging opening is installed a screw feeder, and the outlet of this screw feeder connects flash mixer
Flocculant entrance, flash mixer includes kettle and quick stirring paddle, and quick stirring paddle is vertically installed at kettle
Shaft core position, the upper end of kettle arranges the flocculant entrance being connected with screw feeder, the side of kettle sidewall
Top arranges water body water inlet, and this water body water inlet connects a water pump, with the still of water body water inlet opposite side
The top of body sidewall arranges water body outlet, installs a vertical clapboard in kettle, and this vertical clapboard is positioned at water
Between body outlet and quickly stirring paddle, between bottom surface and the inner wall of kettle of this vertical clapboard, there is gap；
The water body outlet of flash mixer connects the water body entrance of slow stirrer, and slow stirrer includes shell
Body and low rate mixing oar, this low rate mixing oar is vertically installed at the center of housing, under the side of housing sidewall
Portion arranges the water body entrance being connected with the water body outlet of flash mixer, and the opposite side top of housing sidewall sets
Putting pure water inlet, the position of pure water inlet is less than the water body outlet of flash mixer, and it is heavy that the bottom of housing is arranged
Shallow lake thing outlet；
Above-mentioned feed arrangement, screw feeder, flash mixer, slow stirrer and water pump are installed in
In one moving body, the bottom installing wheel of this moving body.
And, control valve is installed in the precipitate outlet of described slow stirrer.
And, also include an electric cabinet, this electric cabinet and feed arrangement, screw feeder, quickly stir
Device, slow stirrer, water pump electrically connect.
Advantages of the present invention and good effect be:
1, this preparation method utilizes inorganic clay mineral Vermiculitum to be raw material, utilizes the feature of himself chemical composition,
Use the method that acid is modified, preparation liquid, solid-state or the flocculant of sticky slurry.The feature of this preparation method
Being that method is simple, technique is uncomplicated, easy to use, and without glutinous wall phenomenon, and powder flocculant is prone to transport.
2 it is known that mineral water comes from subsoil water contacts with mineral material, after exchange for a long time,
The metal of the mineral element harmless to biology contained in water is all to be dispersed in water body, to water with ionic condition
Body has good purification, especially the elimination of colloid stability in water body is served particularly important effect, base
In such mechanism, the present invention utilizes clay mineral materials, by the way of artificial, forms the mineral of high concentration
Material and the mixture of scattered mineral element, make full use of the glamour of nature, it is achieved that low cost, nothing two
The purification of secondary polluted-water.
3, the raw material of this flocculant is natural, nontoxic, cheap, is readily available.Use this preparation method system
Entirely without harmfulness, toxicity and corrosivity, there is not the misgivings of secondary pollution, and substrate in the flocculant obtained
Stability the highest, i.e. flow into and environment do not interfere with ecosystem yet, fool proof to environment and human body,
It is especially suitable for cultivation class, the water body of view class are processed.Additionally, the precipitate after flocculant flocculation is permissible
Recycling, processing cost is low.
4, the flco using this preparation method to produce is closely knit compared with inorganic flocculating agents such as PAC, is difficult to float, just
In separation.
5, the mechanism of action of this preparation method is based on charging neutrality, it is to avoid made flocculation by significant shear power
Agent was lost efficacy.
6, this flocculant is in use, it is possible to flocculate rapidly, rapid acquiring dirty substance, therefore purifies
Effect is clearly.
7, the water purification treatment device that the flocculant using this method to prepare is used when application can be installed
On moving body, therefore facilitate field operation to use, be particluarly suitable for limit, scattered pond and use.
8, the present invention is a kind of economy, the preparation method of efficient, safe water treatment flocculant, uses we
Inorganic mineral material flocculant prepared by method is sticky jelly, and its surface particles is rough many
, relatively there is significant change mutually, for flocculation without the thing of mineral material inner element during peracid modification in pore structure
Create good conditions.This inorganic flocculating agent has preferable dispersibility, and operable condition and range is wide, suitable
Ying Xingqiang, water treatment efficiency are good, use the plurality of advantages such as safety non-pollution, to ensureing that Water resources security has weight
Want social economic value and wide application prospect, be especially suitable for entering containing zoic view class and cultivation class water body
Row purified treatment.
Accompanying drawing explanation
Fig. 1 is the SEM figure of flocculant；
Fig. 2 is the XRD analysis figure of flocculant；
Fig. 3 is the contrast schematic diagram of water sample in the former water of river, flocculation process, after flocculation sediment；
Fig. 4 is quick mixing speed schematic diagram；
Fig. 5 is quick mixing time schematic diagram；
Fig. 6 is low rate mixing speed schematic diagram；
Fig. 7 is low rate mixing time diagram；
Fig. 8 is sedimentation time schematic diagram；
Fig. 9 is temperature schematic diagram；
Figure 10 is the structural representation of purifying processing device in the present invention.
Detailed description of the invention
Describe embodiments of the invention the most in detail；It should be noted that the present embodiment is narration
Property, it not determinate, it is impossible to limit protection scope of the present invention with this.
The preparation method of a kind of inorganic flocculating agent with vermiculite mineral as raw material, comprises the following steps:
(1). Vermiculitum is the secondary metamorphic mineral of water aluminosilicate containing magnesium of a kind of layer structure, and it is natural, nontoxic,
Containing abundant mineral.The specific surface area of Vermiculitum can be increased through pulverizing, modified effective flocculation composition such as silicon,
Ferrum, aluminum can preferably be discharged, so raw material is pulverized, and metallic iron element to be selected and
The Vermiculitum that aluminium element content is high, wherein the mass fraction of metallic iron element is: 12-14%, metallic aluminium element
Mass fraction is: 25-29%, by Vermiculitum raw material pulverizing 1-4min so that it is mean diameter is 129.5-213.5 μm；
(2). the Vermiculitum after pulverizing mixes with acid solution, and acid solution is sulphuric acid, hydrochloric acid or oxalic acid, acid
The mass fraction of solution is 10-40%, and Vermiculitum is 0.7-1.5:1 with the mass ratio of acid solution, and mixture is violent
Stirring, to pasty state, after 25-90 DEG C of heating in water bath 1-8h, i.e. can get the flocculant of sticky pulpous state.
(3). the flocculant of sticky pulpous state step (2) prepared adds the distilled water of certain mass, gluey flocculant
It is 1:5-10 with the mass ratio of water, then mixes, filter, i.e. can get liquid flocculant.
The flocculant of sticky pulpous state step (2) prepared, at 105 DEG C, is dried 4-6h, attrition grinding
Obtain powder flocculant.
Embodiment 1
The preparation method of a kind of inorganic flocculating agent with vermiculite mineral as raw material, comprises the following steps:
(1). selecting metallic iron element and the high Vermiculitum of aluminium element content, wherein the mass fraction of metallic iron element is:
12%, the mass fraction of metallic aluminium element is: 25%, by Vermiculitum raw material pulverizing 1min so that it is mean diameter is
213.5μm；
(2). the Vermiculitum after pulverizing mixes with the hydrochloric acid solution that mass fraction is 10%, and Vermiculitum is molten with hydrochloric acid
The mass ratio of liquid is 0.7:1, is stirred vigorously by mixture to pasty state, after 25 DEG C of heating in water bath 8h,
To sticky pulpous state flocculant.
Embodiment 2
The preparation method of a kind of inorganic flocculating agent with vermiculite mineral as raw material, comprises the following steps:
(1). selecting metallic iron element and the high Vermiculitum of aluminium element content, wherein the mass fraction of metallic iron element is:
13.6%, the mass fraction of metallic aluminium element is: 27.1%, by Vermiculitum raw material pulverizing 3min so that it is particle diameter is
139.1μm；
(2). the Vermiculitum after pulverizing mixes with the sulfuric acid solution that mass fraction is 40%, and Vermiculitum is molten with sulphuric acid
The mass ratio of liquid is 1:1, is stirred vigorously by mixture to pasty state, after 75 DEG C of heating in water bath 2h,
To sticky pulpous state flocculant；
(3). the gluey flocculant of sticky pulpous state step (2) prepared adds the distilled water of certain mass, gluey wadding
Solidifying agent is 1:5 with the mass ratio of water, then mixes, filters, i.e. can get liquid flocculant.
Embodiment 3
(1). selecting metallic iron element and the high Vermiculitum of aluminium element content, wherein the mass fraction of metallic iron element is:
14%, the mass fraction of metallic aluminium element is: 29%, by Vermiculitum raw material pulverizing 4min so that it is mean diameter is
129.5μm；
(2). the Vermiculitum after pulverizing mixes with the oxalic acid solution that mass fraction is 25%, and Vermiculitum is molten with oxalic acid
The mass ratio of liquid is 1.5:1, is stirred vigorously by mixture to pasty state, after 90 DEG C of heating in water bath 1h,
To sticky pulpous state flocculant；
(3). sticky pulpous state flocculant step (2) prepared, at 105 DEG C, is dried 5h, attrition grinding
To powder flocculant.
The application of the above-mentioned inorganic flocculating agent with vermiculite mineral as raw material is: use in purifying processing device is fast
This inorganic flocculating agent and breeding water body or landscape water body or industry water body are quickly stirred by speed agitator, formation
Preliminary purification, mixing speed is 100r/min 200r/min, water body time of staying average out in a device
1min 5min allows flocculant mix homogeneously with the water of process, the stability of rapid damage water-borne glue body, makes glue
Body becomes neutral granule；Then the water body after preliminary purification is introduced the slow stirrer in purifying processing device
Carrying out low rate mixing, mixing speed is 30r/min 60r/min, water body time of staying average out in a device
10min—20min。
Wherein optimal case is: under room temperature condition, and regulation water sample pH value is 8～10, and flocculant most preferably adds
Amount quickly stirs 2min for 300mg/L, 120rpm, 30～60rpm low rate mixing 15min, stands 20min.
The minimum 0.6NTU that is down to of turbidity, turbidity removal rate reaches 99.67%.
If being applied to breeding water body and landscape water body, then not limiting water sample pH value, other parameters are identical.
A kind of purifying processing device includes feed arrangement 2, screw feeder 3, flash mixer 6, stirs at a slow speed
Mix device 9, moving body 17 and electric cabinet 1.Feed arrangement includes cylinder, arranges charging aperture in the upper end of cylinder,
Lower end arranges discharging opening, and this discharging opening is installed a screw feeder, and the outlet of this screw feeder connects fast
The flocculant entrance 5 of speed agitator.Flash mixer includes kettle and quick stirring paddle 13, and quick stirring paddle erects
Directly being arranged on the shaft core position of kettle, the upper end of kettle arranges the flocculant entrance being connected with screw feeder, still
One upper lateral part of body sidewall arranges water body water inlet 4, and this water body water inlet connects a water pump 14, and water pump carries
Pending sewage.Water body outlet 8 is set with the top of the kettle sidewall of water body water inlet opposite side,
Installing a vertical clapboard 7 in kettle, this vertical clapboard, should between water body outlet and quick stirring paddle
Between bottom surface and the inner wall of kettle of vertical clapboard, there is gap.
The water body outlet of flash mixer connects the water body entrance 12 of slow stirrer, and slow stirrer includes
Housing and low rate mixing oar 11, this low rate mixing oar is vertically installed at the center of housing, housing sidewall
One side lower part arranges the water body entrance 12 that is connected with the water body outlet of flash mixer, housing sidewall another
One upper lateral part arranges pure water inlet 10, and the position of pure water inlet is less than the water body outlet of flash mixer, shell
The bottom of body arranges precipitate outlet 15, and the outlet of this precipitate is upper installs control valve 16.
The parts such as electric cabinet and feed arrangement, screw feeder, flash mixer, slow stirrer, water pump
Electrical connection.For the ease of movement, convenient outdoor use, above-mentioned feed arrangement, screw feeder, quickly stir
Mix device, slow stirrer, water pump and electric cabinet etc. to be installed in a moving body, the end of this moving body
Portion's installing wheel.
1, the sign of flocculant
1.1, SEM observes
As it is shown in figure 1, be the SEM figure of flocculant, wherein (a) is mineral material raw material, and (b) is acid
Modified flocculant.The flocculant of sticky slurry is dried at 105 DEG C 4-6h, is then ground pulverizing,
To powder, observe its morphosis under a scanning electron microscope with the raw mineral materials crushed, result such as figure
Shown in 1, it can be clearly seen that, the structure in the form of sheets of raw material before modified, granule disperses, and modified through peracid
Granule be reunion shape, and there is loose structure, create good conditions for flocculation.
1.2, XRD analysis
As in figure 2 it is shown, the powder flocculant crushed is carried out X-ray diffraction analysis.Permissible by Fig. 2
Finding out, through the modified prepared flocculant of peracid, ratio is without the thing phase of mineral material inner element during peracid modification
There is significant change.
2, the flocculating effect pre-test of flocculant
Choosing University Of Science and Technology Of Tianjin's view river to make a preliminary test the effect of flocculant, river turbidity is
36.5NTU, pH are 7.84.Quickly stir 5min with 200r/min after adding the flocculant of 400mg/L,
Then 40r/min low rate mixing 20min, the raw water turbidity measured after standing 20min reduces to 2.6NTU, pH
It is 6.73.The alumen ustum produced in whipping process is obvious.Fig. 3 is that the former water (a) of river is stirred after adding flocculant
The comparison diagram of the river (c) after the river (b) during mixing, and agitated standing.From the figure 3, it may be seen that
The former water of river is muddy, and beaker scale is the most invisible, and after adding flocculant, occurs substantially in whipping process
Alumen ustum, solution becomes clear therewith, and the water quality after precipitation is as clear as crystal, and beaker clear scales is visible, fully shows
This mineral material flocculant has good flocculating effect.
The 2.1 quick mixing speed impacts on flocculating effect
At ambient temperature, regulating former water pH is 8, adds flocculant and make final concentration of in 8 parts of water samples
300mg/L, arrange the speed of quickly stirring be respectively 80r/min, 100r/min, 120r/min, 150r/min,
180r/min、200r/min、250r/min、300r/min.Quickly stir 5min, 50r/min low rate mixing 20min,
Measure shown in turbidity, the ratio faster mixing speed impact on flocculating effect, result and Fig. 4 after standing 20min.
As shown in Figure 4, when quick mixing speed is 120r/min, supernatant fluid turbidity reduces to 2.5NTU,
Raw water turbidity clearance is 98.71%, reaches peak value.And turbidity removal rate is declined slightly under the conditions of other.Hurry up
Speed stirring has the biggest for the contact-impact of flocculant dispersion in system and flocculant with colloidal particles
Impact, quick mixing speed is too fast, and not only energy consumption is big, and shearing force is also big, can cause the small flco of generation
Broken.And quickly mixing speed is the slowest, flocculant disperses uniform not in system, the colloidal particles in system
The most not de-water outlet clarity that surely shows on the contrary declines.From the point of view of whole experimental result, this flocculant has
There is preferable dispersibility, it is simple to operate with.
The 2.2 quick mixing time impacts on flocculating effect
At ambient temperature, regulating former water pH is 8, adds flocculant and make final concentration of in 9 parts of water samples
300mg/L, the speed arranging quickly stirring is 120r/min, quick mixing time be respectively 1min, 1.5min,
2min、2.5min、3min、3.5min、4min、4.5min、5min.50r/min low rate mixing 20min,
Measuring turbidity after standing 20min, the ratio faster mixing time impact on flocculating effect, result is as shown in Figure 5.
As shown in Figure 5, when quick mixing time is 2min, and the clearance of raw water turbidity is the highest.Quickly stirring
It is provided to realize flocculant with mixing time mix with the optimal of colloid, and does not make the flco of formation be broken
Bad.In actual applications, reduce quick mixing time on the one hand on the other hand can to save with energy efficient
Production time, mixing time is also a main operating condition.
The impact on flocculating effect of the 2.3 low rate mixing speed
At ambient temperature, regulating former water pH is 8, adds flocculant, make final concentration of in 7 parts of water samples
300mg/L, the speed arranging quickly stirring is 120r/min, and quick mixing time is 2min, changes at a slow speed
Mixing speed, stands 20min again after stirring 20min, measures supernatant fluid turbidity, compare mixing speed pair at a slow speed
The impact of flocculating effect, result as shown in Figure 6, when low rate mixing speed 30-60r/min, raw water turbidity
All can be down to about 1.0NTU, respond well.Its turbidity removal rate reaches 99.51%.
The impact on flocculating effect of the 2.4 low rate mixing times
At ambient temperature, regulating former water pH is 8, adds flocculant and make final concentration of in 6 parts of water samples
300mg/L, the speed arranging quickly stirring is 120r/min, and quick mixing time is 2min.Arrange at a slow speed
Mixing speed is 40r/min, changes the low rate mixing time, stands 20min the most again, measure its turbidity, than
The impact on flocculating effect of the relatively slower mixing time, result is as it is shown in fig. 7, pass through the different low rate mixing times
Flocculant is removed the contrast of turbidity effect, and when the low rate mixing time is 15min, the turbidity of water body is minimum,
Along with the further prolongation of low rate mixing time, the turbidity of water body can rise again.
The impact on flocculating effect of 2.5 sedimentation times
At ambient temperature, regulating former water pH is 8, takes 6 parts of turbiditys in 250mL by graduated cylinder correct amount
In beaker, adding flocculant and make final concentration of 300mg/L, the speed arranging quickly stirring is 120r/min, soon
Speed mixing time is 2min.Arranging low rate mixing speed is 40r/min, and the low rate mixing time is 15min.
Measure turbidity again after changing the sedimentation time, compare the sedimentation time impact on flocculating effect.Result such as Fig. 8 institute
Show.Time between when precipitated more than 20min, the ascendant trend of turbidity removal rate has tended to relaxing, in reality
In application, the sedimentation time can be in the range of 15～20min.
The impact on flocculating effect of 2.6 temperature
Under room temperature, water temperature is 24.3 DEG C, utilizes refrigerator by former water lower water temperature to 10.9 DEG C, 15.5 DEG C and 18.9 DEG C,
And be incubated with the psychrolusia of corresponding temperature.Utilizing water-bath to regulate former water water temperature is 30 DEG C, 35 DEG C, 40 DEG C.
Regulating former water pH is 8, adds flocculant and makes final concentration of 300mg/L, arrange and quickly stir in 6 parts of water samples
The speed mixed is 120r/min, and quick mixing time is 2min.Arranging low rate mixing speed is 40r/min,
The low rate mixing time is 15min, measures turbidity, the C.T shadow to flocculating effect after quiescent setting 20min
Ring.
The change of temperature mainly changes density and the clarity of water.So compare relatively low at a temperature of,
The density of water is big, and the reason that dissolution velocity diminishes reflects the difference of flocculating effect.But temperature is too high, de-steady
The flco stability of rear formation and dispersibility increase, and can cause the change of flocculating effect, but from experimental result,
As it is shown in figure 9, at normal temperatures, flocculating effect is preferable.
Claims (7)
1. the preparation method of the inorganic flocculating agent with vermiculite mineral as raw material, it is characterised in that: include with
Lower step:
(1). select metallic iron element and the high Vermiculitum of aluminium element content, by Vermiculitum raw material pulverizing 1-4min so that it is
Mean diameter is 129.5-213.5 μm；Metal in described metallic iron element and the high Vermiculitum of aluminium element content
The mass fraction of ferrum element is: 12-14%；The mass fraction of metallic aluminium element is: 25-29%；
(2). the Vermiculitum after pulverizing mixes with acid solution, and is stirred vigorously to pasty state, at 25-90 DEG C of water
After bath heating 1-8h, i.e. can get sticky pulpous state flocculant；
The described Vermiculitum after pulverizing is 0.7-1.5:1 with the mass ratio of acid solution；
Described acid solution is sulphuric acid, hydrochloric acid or oxalic acid, and the mass fraction of acid solution is 10-40%.
The preparation method of a kind of inorganic flocculating agent with vermiculite mineral as raw material the most according to claim 1,
It is characterized in that: the flocculant of sticky pulpous state step (2) prepared adds the distilled water of certain mass, flocculant
It is 1:5-10 with the mass ratio of water, then mixes, filter, i.e. can get liquid flocculant.
The preparation method of a kind of inorganic flocculating agent with vermiculite mineral as raw material the most according to claim 1,
It is characterized in that: the flocculant of sticky pulpous state step (2) prepared, at 105 DEG C, is dried 4-6h, and pulverizing is ground
Mill i.e. can get powder flocculant.
4. an application for the inorganic flocculating agent with vermiculite mineral as raw material as claimed in claim 1, it is special
Levy and be: use the flash mixer in purifying processing device by this inorganic flocculating agent and cultivation water or landscape water
Or industry water quickly stirs, mixing speed is 100r/min 200r/min, during water body stop in a device
Between average out to 1min 5min, allow flocculant mix homogeneously with the water of process, rapid damage water-borne glue body steady
Qualitative, make colloid become the granule of neutrality；Then the water body after preliminary purification is introduced in purifying processing device
Slow stirrer carries out low rate mixing, and mixing speed is 30r/min 60r/min, water body stop in a device
Time average is 10min 20min.
The application of the inorganic flocculating agent with vermiculite mineral as raw material the most according to claim 4, its feature
It is: described purifying processing device includes feed arrangement, screw feeder, flash mixer, low rate mixing
Device and moving body, feed arrangement includes cylinder, arranges charging aperture in the upper end of cylinder, and lower end arranges discharging opening,
Installing a screw feeder on this discharging opening, the outlet of this screw feeder connects the flocculant of flash mixer
Entrance, flash mixer includes kettle and quick stirring paddle, and quick stirring paddle is vertically installed at the position, axle center of kettle
Putting, the upper end of kettle arranges the flocculant entrance being connected with screw feeder, and a upper lateral part of kettle sidewall is arranged
Water body water inlet, this water body water inlet connects a water pump, with the kettle sidewall of water body water inlet opposite side
Top arranges water body outlet, installs a vertical clapboard in kettle, and this vertical clapboard is positioned at water body outlet
And between quick stirring paddle, between bottom surface and the inner wall of kettle of this vertical clapboard, there is gap；
The water body outlet of flash mixer connects the water body entrance of slow stirrer, and slow stirrer includes shell
Body and low rate mixing oar, this low rate mixing oar is vertically installed at the center of housing, under the side of housing sidewall
Portion arranges the water body entrance being connected with the water body outlet of flash mixer, and the opposite side top of housing sidewall sets
Putting pure water inlet, the position of pure water inlet is less than the water body outlet of flash mixer, and it is heavy that the bottom of housing is arranged
Shallow lake thing outlet；
Above-mentioned feed arrangement, screw feeder, flash mixer, slow stirrer and water pump are installed in
In one moving body, the bottom installing wheel of this moving body.
The application of the inorganic flocculating agent with vermiculite mineral as raw material the most according to claim 5, its feature
It is: in the precipitate outlet of described slow stirrer, control valve is installed.
The application of the inorganic flocculating agent with vermiculite mineral as raw material the most according to claim 6, its feature
It is: also include an electric cabinet, this electric cabinet and feed arrangement, screw feeder, flash mixer, slow
Speed agitator, water pump electrical connection.
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| CN201410553661.7A CN104402100B (en) | 2014-10-16 | 2014-10-16 | The preparation method and applications of the inorganic flocculating agent with vermiculite mineral as raw material |
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| CN201410553661.7A CN104402100B (en) | 2014-10-16 | 2014-10-16 | The preparation method and applications of the inorganic flocculating agent with vermiculite mineral as raw material |
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| CN104402100B true CN104402100B (en) | 2016-10-26 |
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Families Citing this family (3)
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| CN105776464A (en) * | 2015-12-15 | 2016-07-20 | 富凯迪沃（天津）环保科技有限公司 | Preparation method and application of maifanite mineral material flocculation agent |
| CN106698627A (en) * | 2016-12-29 | 2017-05-24 | 天津科技大学 | Method for promoting PAC charge neutralization and settling property with vermiculite modified flocculant and application thereof |
| CN116835734B (en) * | 2023-07-18 | 2024-01-19 | 北京联发迈通科技有限公司 | Desulfurization wastewater integrated efficient flocculation medicament and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6044007A (en) * | 1983-08-19 | 1985-03-08 | Shigeo Kuroiwa | Flocculant and its preparation |
| CN101767854A (en) * | 2010-01-13 | 2010-07-07 | 昆明理工大学 | Coagulating/flocculating method for processing nanofiltration concentrate reject stream of early percolate at refuse landfills |
| CN102126774A (en) * | 2011-04-01 | 2011-07-20 | 江苏大学 | Short-time flocculation and high speed sedimentation sewage treatment device |
-
2014
- 2014-10-16 CN CN201410553661.7A patent/CN104402100B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6044007A (en) * | 1983-08-19 | 1985-03-08 | Shigeo Kuroiwa | Flocculant and its preparation |
| CN101767854A (en) * | 2010-01-13 | 2010-07-07 | 昆明理工大学 | Coagulating/flocculating method for processing nanofiltration concentrate reject stream of early percolate at refuse landfills |
| CN102126774A (en) * | 2011-04-01 | 2011-07-20 | 江苏大学 | Short-time flocculation and high speed sedimentation sewage treatment device |
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