CN104402100A - Preparation method and applications of inorganic flocculant adopting vermiculite mineral as raw material - Google Patents
Preparation method and applications of inorganic flocculant adopting vermiculite mineral as raw material Download PDFInfo
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- CN104402100A CN104402100A CN201410553661.7A CN201410553661A CN104402100A CN 104402100 A CN104402100 A CN 104402100A CN 201410553661 A CN201410553661 A CN 201410553661A CN 104402100 A CN104402100 A CN 104402100A
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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
Abstract
The present invention relates to a preparation method of an inorganic flocculant adopting a vermiculite mineral as a raw material. The preparation method comprises: (1) selecting vermiculite with high metal iron content and high aluminum content, and crushing the vermiculite raw material, (2) mixing the crushed vermiculite and an acid solution, vigorously stirring to obtain the paste state, and carrying out water bath heating for 1-8 h at a temperature of 25-90 DEG C to obtain the gelatinous slurry-like flocculant. According to the present invention, the preparation method of the present invention is the economical, efficient and safe water treatment flocculant preparation method; the inorganic mineral material flocculant prepared by using the method presents the gelatinous slurry, the particle surface is the concave-convex uneven porous structure, and the phase of the elements inside the mineral matter of the inorganic flocculant is significantly changed compared with the phase of the elements inside the mineral matter with no acid modification so as to provide the good condition for the production of the flocculation effect; and the inorganic flocculant has advantages of good dispersion, wide operability range, strong adaptability, good water treatment effect, safe use, no pollution and the like.
Description
Technical field
The present invention relates to water pollutions processing technology field, especially a kind of take vermiculite mineral as preparation method and the application thereof of the inorganic flocculating agent of raw material.
Background technology
Current, World Water pollution becoming serious, also increases day by day to the application demand of water technology.Wherein, flocculent precipitation is method comparatively widely in water treatment applications, it has the advantages such as economical and efficient, technique is simple, easy to operate, the method is widely used in the fields such as sea water desaltination, tap water preparation, cultivating wastewater purification, fermentation waste water process, food-processing and building dredging engineering, therefore, Study and Development economy, efficient, safe water treatment flocculant are one of important research directions of domestic and international investigator always.
In inorganic, organic, microorganism and the large class flocculation agent of composite flocculation agent 4, inorganic flocculating agent is a kind of important and conventional flocculation agent.Inorganic flocculating agent conventional is in the industry the Polyferric Sulfate of synthetic, poly-aluminium class flocculation agent, in use there is many defects in this type of flocculation agent: the metal ion content 1, in flocculation agent is high, and usually exist with polymerization state, metallic iron ion under polymerization state and aluminum ion have toxicity, very big to human body and biohazardous, therefore the Polyferric Sulfate of this synthetic, poly-aluminium class inorganic flocculating agent can not be used for the Treatment for Reuse process cultivating class, view class.2, because flocculation agent exists toxicity, therefore also can produce secondary pollution, environment and human body are worked the mischief.3, the Polyferric Sulfate of synthetic, poly-aluminium class inorganic flocculating agent price are more expensive, cause cost of water treatment to increase.
Summary of the invention
The object of the invention is to make up the deficiencies in the prior art part, providing that a kind of water treatment efficiency is good, use safety is pollution-free, price is low and being especially applicable to what process containing zoic view class and cultivation class water body take vermiculite mineral as preparation method and the application thereof of the inorganic flocculating agent of raw material.
The object of the invention is to be realized by following technique means:
Take vermiculite mineral as a preparation method for the inorganic flocculating agent of raw material, it is characterized in that: comprise the following steps:
(1). select metallic iron element and the high vermiculite of aluminium element content, by vermiculite raw material pulverizing 1-4min, make its median size be 129.5-213.5 μm;
(2). the vermiculite after pulverizing is mixed with acid solution, and vigorous stirring is to pasty state, after 25-90 DEG C of heating in water bath 1-8h, can obtain sticky pulpous state flocculation agent.
And the massfraction of the metallic iron element in the metallic iron element that step is (1) described and the high vermiculite of aluminium element content is: 12-14%; The massfraction of metallic aluminium element is: 25-29%.
And the vermiculite after the pulverizing that step is (2) described and the mass ratio of acid solution are 0.7-1.5:1.
And the (2) described acid solution of step is sulfuric acid, hydrochloric acid or oxalic acid, and the massfraction of acid solution is 10-40%.
And the flocculation agent of sticky pulpous state step (2) prepared adds the distilled water of certain mass, and the mass ratio of flocculation agent and water is 1:5-10, then mixes, filters, and can obtain liquid flocculant.
And the flocculation agent of sticky pulpous state step (2) prepared is at 105 DEG C, and dry 4-6h, pulverizes grinding and can obtain Powdered flocculation agent.
A kind of take vermiculite mineral as the application of the inorganic flocculating agent of raw material, it is characterized in that: use flash mixer in purifying processing device by this inorganic flocculating agent and aquaculture water or landscape water or service water rapid stirring, stirring velocity is 100r/min-200r/min, water body residence time average out to 1min-5min in a device, flocculation agent is allowed to mix with the water of process, the stability of rapid damage water-borne glue body, makes colloid become neutral particle; Then the slow stirrer that the water body after rough purification is introduced in purifying processing device is carried out low rate mixing, stirring velocity is 30r/min-60r/min, water body residence time average out to 10min-20min in a device.
And, described purifying processing device comprises feeding unit, screw feeder, flash mixer, slow stirrer and moving body, feeding unit comprises cylindrical shell, in the upper end of cylindrical shell, opening for feed is set, lower end arranges discharge port, this discharge port installs a screw feeder, the outlet of this screw feeder connects the flocculation agent entrance of flash mixer, flash mixer comprises kettle and rapid stirring oar, rapid stirring oar is vertically arranged on the shaft core position of kettle, the upper end of kettle arranges the flocculation agent entrance be connected with screw feeder, one upper lateral part of kettle sidewall arranges water body water-in, this water body water-in connects a water pump, the top of the kettle sidewall of side relative to water body water-in arranges water body water outlet, in kettle, a vertical clapboard is installed, this vertical clapboard is between water body water outlet and rapid stirring oar, between the bottom surface of this vertical clapboard and inner wall of kettle, there is gap,
The water body water outlet of flash mixer connects the water body entrance of slow stirrer, slow stirrer comprises housing and low rate mixing oar, this low rate mixing oar is vertically arranged on the central position of housing, one side lower part of housing sidewall arranges the water body entrance be connected with the water body water outlet of flash mixer, the opposite side top of housing sidewall arranges pure water inlet, the position of pure water inlet is lower than the water body water outlet of flash mixer, and the bottom of housing arranges throw out outlet;
Above-mentioned feeding unit, screw feeder, flash mixer, slow stirrer and water pump are installed in a moving body, the bottom installing wheel of this moving body.
And, control valve is installed in the throw out outlet of described slow stirrer.
And also comprise an electric control box, this electric control box is electrically connected with feeding unit, screw feeder, flash mixer, slow stirrer, water pump.
Advantage of the present invention and positively effect are:
1, this preparation method utilizes inorganic clay mineral vermiculite to be raw material, utilizes the feature of himself chemical constitution, adopts the method for sour modification, prepares the flocculation agent of liquid, solid-state or sticky slurry.The feature of this preparation method is that method is simple, and technique is uncomplicated, easy to use, and without glutinous wall phenomenon, and Powdered flocculation agent is easy to transport.
2, as everyone knows, mineral water comes from underground water and contacts with mineral material, after exchanging for a long time, the metal of the mineral element harmless to biology contained in water is all be dispersed in water body with ionic condition, to water body, there is good cleaning action, especially very important effect is served to the elimination of colloid stability in water body, based on such mechanism, the present invention utilizes clay mineral materials, by artificial mode, form the mixture of the mineral material of high density and the mineral element of dispersion, make full use of natural glamour, achieve low cost, the cleaning action of non-secondary pollution water body.
3, the raw material of this flocculation agent is natural, nontoxic, cheap, easily obtains.The flocculation agent adopting this preparation method to obtain does not have hazardous property, toxicity and corrodibility completely, there are not the misgivings of secondary pollution, and the stability of substrate is very high, even if flow in environment and also can not affect the ecosystem, to environment and human body fool proof, be especially applicable to cultivation class, view class water body process.In addition, the throw out after flocculation agent flocculation can recycle, and processing costs is low.
4, the flco adopting this preparation method to produce is closely knit compared with inorganic flocculating agents such as PAC, not easily floats, and is convenient to be separated.
5, the mechanism of action of this preparation method is based on charge neutralization, avoids being subject to significant shear power and flocculation agent being lost efficacy.
6, this flocculation agent in use, can flocculate rapidly, rapid acquiring dirty substance, and therefore decontamination effect improving clearly.
7, the water purification treatment device that the flocculation agent adopting present method to prepare uses when applying can be arranged on moving body, therefore facilitates field operation to use, and the limit, pond being particluarly suitable for disperseing uses.
8, the present invention is the preparation method of a kind of economy, efficient, safe water treatment flocculant, the inorganic mineral material flocculation agent prepared by present method is adopted to be sticky jelly, its surface particles is rough vesicular structure, mutually considerable change occurring compared with without the thing of mineral material inner element during peracid modification, is creating good conditions of throwing out.This inorganic flocculating agent has good dispersiveness, can operational condition scope wide, the plurality of advantages such as strong adaptability, water treatment efficiency are good, use safety is pollution-free, to guarantee Water resources security, there is important social economic value and wide application prospect, be especially applicable to carrying out purifying treatment to containing zoic view class and cultivation class water body.
Accompanying drawing explanation
Fig. 1 is the SEM figure of flocculation agent;
Fig. 2 is the XRD analysis figure of flocculation agent;
Fig. 3 is the contrast schematic diagram of water sample in the former water of river, flocculation process, after flocculation sediment;
Fig. 4 is rapid stirring speed schematic diagram;
Fig. 5 is rapid stirring time 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.
Embodiment
Embodiments of the invention are described in detail below in conjunction with accompanying drawing; It should be noted that, the present embodiment is narrative, is not determinate, can not limit protection scope of the present invention with this.
Take vermiculite mineral as a preparation method for the inorganic flocculating agent of raw material, comprise the following steps:
(1). vermiculite is a kind of secondary metamorphic mineral of water aluminosilicate containing magnesium of laminate structure, and it is natural, nontoxic, containing abundant mineral substance.The specific surface area of vermiculite can be increased through pulverizing, modified effective flocculation composition such as silicon, iron, aluminium can better be discharged, so will pulverize starting material, and metallic iron element and the high vermiculite of aluminium element content will be selected, wherein the massfraction of metallic iron element is: 12-14%, the massfraction of metallic aluminium element is: 25-29%, by vermiculite raw material pulverizing 1-4min, makes its median size be 129.5-213.5 μm;
(2). the vermiculite after pulverizing is mixed with acid solution, acid solution is sulfuric acid, hydrochloric acid or oxalic acid, the massfraction of acid solution is 10-40%, the mass ratio of vermiculite and acid solution is 0.7-1.5:1, by mixture vigorous stirring to pasty state, after 25-90 DEG C of heating in water bath 1-8h, the flocculation agent of sticky pulpous state can be obtained.
(3). the flocculation agent of sticky pulpous state step (2) prepared adds the distilled water of certain mass, and the mass ratio of gluey flocculation agent and water is 1:5-10, then mixes, filters, and can obtain liquid flocculant.
The flocculation agent of sticky pulpous state step (2) prepared is at 105 DEG C, and dry 4-6h, pulverizes grinding and can obtain Powdered flocculation agent.
Embodiment 1
Take vermiculite mineral as a preparation method for the inorganic flocculating agent of raw material, comprise the following steps:
(1). select metallic iron element and the high vermiculite of aluminium element content, wherein the massfraction of metallic iron element is: 12%, and the massfraction of metallic aluminium element is: 25%, by vermiculite raw material pulverizing 1min, makes its median size be 213.5 μm;
(2). the hydrochloric acid soln being 10% by the vermiculite after pulverizing and massfraction mixes, and the mass ratio of vermiculite and hydrochloric acid soln is 0.7:1, by mixture vigorous stirring to pasty state, after 25 DEG C of heating in water bath 8h, can obtain sticky pulpous state flocculation agent.
Embodiment 2
Take vermiculite mineral as a preparation method for the inorganic flocculating agent of raw material, comprise the following steps:
(1). select metallic iron element and the high vermiculite of aluminium element content, wherein the massfraction of metallic iron element is: 13.6%, and the massfraction of metallic aluminium element is: 27.1%, by vermiculite raw material pulverizing 3min, makes its particle diameter be 139.1 μm;
(2). the sulphuric acid soln being 40% by the vermiculite after pulverizing and massfraction mixes, and the mass ratio of vermiculite and sulphuric acid soln is 1:1, by mixture vigorous stirring to pasty state, after 75 DEG C of heating in water bath 2h, can obtain sticky pulpous state flocculation agent;
(3). the gluey flocculation agent of sticky pulpous state step (2) prepared adds the distilled water of certain mass, and the mass ratio of gluey flocculation agent and water is 1:5, then mixes, filters, and can obtain liquid flocculant.
Embodiment 3
(1). select metallic iron element and the high vermiculite of aluminium element content, wherein the massfraction of metallic iron element is: 14%, and the massfraction of metallic aluminium element is: 29%, by vermiculite raw material pulverizing 4min, makes its median size be 129.5 μm;
(2). the oxalic acid solution being 25% by the vermiculite after pulverizing and massfraction mixes, and the mass ratio of vermiculite and oxalic acid solution is 1.5:1, by mixture vigorous stirring to pasty state, after 90 DEG C of heating in water bath 1h, can obtain sticky pulpous state flocculation agent;
(3). sticky pulpous state flocculation agent step (2) prepared is at 105 DEG C, and dry 5h, pulverizes grinding and can obtain Powdered flocculation agent.
Above-mentioned take vermiculite mineral as being applied as of the inorganic flocculating agent of raw material: use flash mixer in purifying processing device by this inorganic flocculating agent and aquaculture water or landscape water body or industrial water body rapid stirring, form rough purification, stirring velocity is 100r/min-200r/min, water body residence time average out to 1min-5min in a device allows flocculation agent mix with the water of process, the stability of rapid damage water-borne glue body, makes colloid become neutral particle; Then the slow stirrer that the water body after rough purification is introduced in purifying processing device is carried out low rate mixing, stirring velocity is 30r/min-60r/min, water body residence time average out to 10min-20min in a device.
Wherein preferred embodiment is: under room temperature condition, and regulate water sample pH value to be 8 ~ 10, flocculation agent optimum dosage is 300mg/L, 120rpm rapid stirring 2min, 30 ~ 60rpm low rate mixing 15min, leaves standstill 20min.Turbidity is minimum is down to 0.6NTU, and turbidity removal rate reaches 99.67%.
If be applied to aquaculture water and landscape water body, then do not limit water sample pH value, other parameters are identical.
A kind of purifying processing device comprises feeding unit 2, screw feeder 3, flash mixer 6, slow stirrer 9, moving body 17 and electric control box 1.Feeding unit comprises cylindrical shell, and arrange opening for feed in the upper end of cylindrical shell, lower end arranges discharge port, and this discharge port installs a screw feeder, and the outlet of this screw feeder connects the flocculation agent entrance 5 of flash mixer.Flash mixer comprises kettle and rapid stirring oar 13, rapid stirring oar is vertically arranged on the shaft core position of kettle, the upper end of kettle arranges the flocculation agent entrance be connected with screw feeder, one upper lateral part of kettle sidewall arranges water body water-in 4, this water body water-in connects a water pump 14, and pending sewage carried by water pump.The top of the kettle sidewall of side relative to water body water-in arranges water body water outlet 8, in kettle, a vertical clapboard 7 is installed, this vertical clapboard, between water body water outlet and rapid stirring oar, has gap between the bottom surface of this vertical clapboard and inner wall of kettle.
The water body water outlet of flash mixer connects the water body entrance 12 of slow stirrer, slow stirrer comprises housing and low rate mixing oar 11, this low rate mixing oar is vertically arranged on the central position of housing, one side lower part of housing sidewall arranges the water body entrance 12 be connected with the water body water outlet of flash mixer, the opposite side top of housing sidewall arranges pure water inlet 10, the position of pure water inlet is lower than the water body water outlet of flash mixer, the bottom of housing arranges throw out outlet 15, and the outlet of this throw out is upper installs control valve 16.
Electric control box is electrically connected with parts such as feeding unit, screw feeder, flash mixer, slow stirrer, water pumps.For the ease of movement, facilitate outdoor use, above-mentioned feeding unit, screw feeder, flash mixer, slow stirrer, water pump and electric control box etc. are installed in a moving body, the bottom installing wheel of this moving body.
1, the sign of flocculation agent
1.1, SEM observes
As shown in Figure 1, for the SEM of flocculation agent schemes, wherein (a) is mineral material raw material, and (b) is sour modified flocculation agent.By the flocculation agent of sticky slurry dry 4-6h at 105 DEG C, then grind, to Powdered, observe its morphological structure under a scanning electron microscope with the raw mineral materials crushed, result as shown in Figure 1, can obviously find out, the structure in the form of sheets of raw material before modified, Granular composite, and be reunion shape through the particle that peracid is modified, and there is vesicular structure, be creating good conditions of throwing out.
1.2, XRD analysis
As shown in Figure 2, the Powdered flocculation agent crushed is carried out X-ray diffraction analysis.As seen from Figure 2, through the modified obtained flocculation agent of peracid, there is considerable change mutually than without the thing of mineral material inner element during peracid modification.
2, the flocculating effect pre-test of flocculation agent
Choose the University Of Science and Technology Of Tianjin's effect of view river to flocculation agent to make a preliminary test, river turbidity is 36.5NTU, pH is 7.84.With 200r/min rapid stirring 5min, then 40r/min low rate mixing 20min after the flocculation agent of interpolation 400mg/L, the raw water turbidity measured after leaving standstill 20min reduces to 2.6NTU, and pH is 6.73.The alumen ustum produced in whipping process is obvious.Fig. 3 is the former water (a) of river and the river (b) added after flocculation agent in whipping process, and the comparison diagram of river (c) after stirring and leaving standstill.As shown in Figure 3, the former water of river is muddy, and beaker scale be cannot see substantially, and after adding flocculation agent, in whipping process, there is obvious alumen ustum, solution becomes clear thereupon, water quality after precipitation is as clear as crystal, and beaker clear scales is visible, fully shows this mineral material flocculation agent and has good flocculating effect.
2.1 rapid stirring speed are on the impact of flocculating effect
At ambient temperature, former water pH is regulated to be 8, in 8 parts of water samples, add flocculation agent makes final concentration be 300mg/L, and the speed arranging rapid stirring is respectively 80r/min, 100r/min, 120r/min, 150r/min, 180r/min, 200r/min, 250r/min, 300r/min.Rapid stirring 5min, 50r/min low rate mixing 20min, measures turbidity after leaving standstill 20min, compares the impact of rapid stirring speed on flocculating effect, shown in result and Fig. 4.
As shown in Figure 4, when rapid stirring speed is 120r/min, supernatant fluid turbidity reduces to 2.5NTU, and raw water turbidity clearance is 98.71%, reaches peak value.And turbidity removal rate slightly declines under other conditions.Rapid stirring has a great impact for the contact-impact of the dispersion of flocculation agent in system and flocculation agent and colloidal particle, rapid stirring excessive velocities, and not only energy consumption is large, and shearing force is also large, and the small flco of generation can be caused broken.And rapid stirring speed is excessively slow, flocculation agent disperses even not in system, and the colloidal particle in the system likely not de-water outlet clarity that surely shows on the contrary decline.From whole experimental result, this flocculation agent has good dispersiveness, and convenient operation uses.
2.2 rapid stirring times are on the impact of flocculating effect
At ambient temperature, former water pH is regulated to be 8, in 9 parts of water samples, add flocculation agent makes final concentration be 300mg/L, and the speed arranging rapid stirring is 120r/min, and the rapid stirring time is respectively 1min, 1.5min, 2min, 2.5min, 3min, 3.5min, 4min, 4.5min, 5min.50r/min low rate mixing 20min, measure turbidity after leaving standstill 20min, compare the impact of rapid stirring time on flocculating effect, result as shown in Figure 5.
As shown in Figure 5, be 2min when the rapid stirring time, the clearance of raw water turbidity is the highest.Rapid stirring and churning time are all mix with the best of colloid to realize flocculation agent, and do not make the flco of formation be destroyed.In actual applications, reducing the rapid stirring time on the one hand can energy efficient, and can save the production time on the other hand, churning time is also a main operational condition.
2.3 low rate mixing speed are on the impact of flocculating effect
At ambient temperature, regulate former water pH to be 8, in 7 parts of water samples, add flocculation agent, make final concentration be 300mg/L, the speed arranging rapid stirring is 120r/min, and the rapid stirring time is 2min, change low rate mixing speed, leave standstill 20min again after stirring 20min, measure supernatant fluid turbidity, stirring velocity is on the impact of flocculating effect more at a slow speed, result as shown in Figure 6, as 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%.
2.4 low rate mixing times are on the impact of flocculating effect
At ambient temperature, regulate former water pH to be 8, add flocculation agent and make final concentration be 300mg/L in 6 parts of water samples, the speed arranging rapid stirring is 120r/min, and the rapid stirring time is 2min.Arranging low rate mixing speed is 40r/min, change the low rate mixing time, and then standing 20min, measure its turbidity, churning time is on the impact of flocculating effect more at a slow speed, result as shown in Figure 7, pass through the contrast of different low rate mixing time to flocculation agent removal turbidity effect, 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.
2.5 sedimentation time are on the impact of flocculating effect
At ambient temperature, regulate former water pH to be 8, get 6 parts of turbiditys in 250mL beaker by graduated cylinder correct amount, add flocculation agent and make final concentration be 300mg/L, the speed arranging rapid stirring is 120r/min, and the rapid stirring time is 2min.Arranging low rate mixing speed is 40r/min, and the low rate mixing time is 15min.Measure turbidity again after changing sedimentation time, compare the impact of sedimentation time on flocculating effect.Result as shown in Figure 8.When being greater than 20min when precipitated, the ascendant trend of turbidity removal rate has been tending towards relaxing, and sedimentation time can within the scope of 15 ~ 20min in actual applications.
2.6 temperature are on the impact of flocculating effect
Under room temperature, water temperature is 24.3 DEG C, utilize refrigerator by former water lower water temperature to 10.9 DEG C, 15.5 DEG C and 18.9 DEG C, and to be incubated with the cooling bath of corresponding temperature.Water-bath is utilized to regulate former water water temperature to be 30 DEG C, 35 DEG C, 40 DEG C.Regulate former water pH to be 8, add flocculation agent and make final concentration be 300mg/L in 6 parts of water samples, the speed arranging rapid stirring is 120r/min, and the rapid stirring time is 2min.Arranging low rate mixing speed is 40r/min, and the low rate mixing time is 15min, measures turbidity after quiescent setting 20min, and C.T. is on the impact of flocculating effect.
The change of temperature mainly changes density and the clarity of water.So at relatively low temperature, the density of water is large, and the cause that dissolution rate diminishes, reflects the difference of flocculating effect.But temperature is too high, the de-steady rear flco stability formed increases with dispersed, can cause the change of flocculating effect, but from experimental result, as shown in Figure 9, at normal temperatures, flocculating effect is relatively better.
Claims (10)
1. be a preparation method for the inorganic flocculating agent of raw material with vermiculite mineral, it is characterized in that: comprise the following steps:
(1). select metallic iron element and the high vermiculite of aluminium element content, by vermiculite raw material pulverizing 1-4min, make its median size be 129.5-213.5 μm;
(2). the vermiculite after pulverizing is mixed with acid solution, and vigorous stirring is to pasty state, after 25-90 DEG C of heating in water bath 1-8h, can obtain sticky pulpous state flocculation agent.
2. according to claim 1 a kind of take vermiculite mineral as the preparation method of the inorganic flocculating agent of raw material, it is characterized in that: the massfraction of the metallic iron element in the metallic iron element that step is (1) described and the high vermiculite of aluminium element content is: 12-14%; The massfraction of metallic aluminium element is: 25-29%.
3. according to claim 1 a kind of take vermiculite mineral as the preparation method of the inorganic flocculating agent of raw material, it is characterized in that: the vermiculite after the pulverizing that step is (2) described and the mass ratio of acid solution are 0.7-1.5:1.
4. a kind of according to claim 1 or 3 take vermiculite mineral as the preparation method of the inorganic flocculating agent of raw material, it is characterized in that: the (2) described acid solution of step is sulfuric acid, hydrochloric acid or oxalic acid, and the massfraction of acid solution is 10-40%.
5. according to claim 1 a kind of take vermiculite mineral as the preparation method of the inorganic flocculating agent of raw material, it is characterized in that: the flocculation agent of sticky pulpous state step (2) prepared adds the distilled water of certain mass, the mass ratio of flocculation agent and water is 1:5-10, then mix, filter, can liquid flocculant be obtained.
6. according to claim 1 a kind of take vermiculite mineral as the preparation method of the inorganic flocculating agent of raw material, it is characterized in that: the flocculation agent of sticky pulpous state step (2) prepared is at 105 DEG C, and dry 4-6h, pulverizes grinding and can obtain Powdered flocculation agent.
7. one kind is the application of the inorganic flocculating agent of raw material as claimed in claim 1 with vermiculite mineral, it is characterized in that: use flash mixer in purifying processing device by this inorganic flocculating agent and aquaculture water or landscape water or service water rapid stirring, stirring velocity is 100r/min-200r/min, water body residence time average out to 1min-5min in a device, flocculation agent is allowed to mix with the water of process, the stability of rapid damage water-borne glue body, makes colloid become neutral particle; Then the slow stirrer that the water body after rough purification is introduced in purifying processing device is carried out low rate mixing, stirring velocity is 30r/min-60r/min, water body residence time average out to 10min-20min in a device.
8. according to claim 7 take vermiculite mineral as the application of the inorganic flocculating agent of raw material, it is characterized in that: described purifying processing device comprises feeding unit, screw feeder, flash mixer, slow stirrer and moving body, feeding unit comprises cylindrical shell, in the upper end of cylindrical shell, opening for feed is set, lower end arranges discharge port, this discharge port installs a screw feeder, the outlet of this screw feeder connects the flocculation agent entrance of flash mixer, flash mixer comprises kettle and rapid stirring oar, rapid stirring oar is vertically arranged on the shaft core position of kettle, the upper end of kettle arranges the flocculation agent entrance be connected with screw feeder, one upper lateral part of kettle sidewall arranges water body water-in, this water body water-in connects a water pump, the top of the kettle sidewall of side relative to water body water-in arranges water body water outlet, in kettle, a vertical clapboard is installed, this vertical clapboard is between water body water outlet and rapid stirring oar, between the bottom surface of this vertical clapboard and inner wall of kettle, there is gap,
The water body water outlet of flash mixer connects the water body entrance of slow stirrer, slow stirrer comprises housing and low rate mixing oar, this low rate mixing oar is vertically arranged on the central position of housing, one side lower part of housing sidewall arranges the water body entrance be connected with the water body water outlet of flash mixer, the opposite side top of housing sidewall arranges pure water inlet, the position of pure water inlet is lower than the water body water outlet of flash mixer, and the bottom of housing arranges throw out outlet;
Above-mentioned feeding unit, screw feeder, flash mixer, slow stirrer and water pump are installed in a moving body, the bottom installing wheel of this moving body.
9. according to claim 8 take vermiculite mineral as the application of the inorganic flocculating agent of raw material, it is characterized in that: control valve is installed in the throw out outlet of described slow stirrer.
10. according to claim 9 take vermiculite mineral as the application of the inorganic flocculating agent of raw material, it is characterized in that: also comprise an electric control box, this electric control box is electrically connected with feeding unit, screw feeder, flash mixer, slow stirrer, water pump.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN116835734A (en) * | 2023-07-18 | 2023-10-03 | 北京联发迈通科技有限公司 | Desulfurization wastewater integrated efficient flocculation medicament and preparation method thereof |
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| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN116835734A (en) * | 2023-07-18 | 2023-10-03 | 北京联发迈通科技有限公司 | Desulfurization wastewater integrated efficient flocculation medicament and preparation method 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 |
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| CN104402100B (en) | 2016-10-26 |
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