CN108191020A - A kind of novel liquid complexing nano flocculant preparation method - Google Patents
A kind of novel liquid complexing nano flocculant preparation method Download PDFInfo
- Publication number
- CN108191020A CN108191020A CN201810038624.0A CN201810038624A CN108191020A CN 108191020 A CN108191020 A CN 108191020A CN 201810038624 A CN201810038624 A CN 201810038624A CN 108191020 A CN108191020 A CN 108191020A
- Authority
- CN
- China
- Prior art keywords
- solution
- novel liquid
- nano flocculant
- alchlor
- complexing nano
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention belongs to technical field of sewage more particularly to a kind of novel liquid complexing nano flocculant preparation methods, include following steps：Step 1：Using the saliferous acid waste liquid of production process discharge, corrode aluminium, the iron aoxidized as raw material, be stirred, reaction generation alchlor and ferric trichloride mixture solution；Step 2：The alchlor for reacting generation and ferric trichloride mixture solution are rejoined into sodium hydroxide solution again, adjusted to certain pH value, then stands a period of time, obtains polyaluminium chloride ferrous solution；Step 3：It will obtain polyaluminium chloride ferrous solution and add organic cation high molecular products, and generate nano flocculant.Beneficial effects of the present invention：Complexing nano flocculant efficient compound kind, for raw material using pesticide waste to reach waste utilization, ecological, environmental protective promotes agriculture green circulatory development；Compared with conventional solid-state product, the product reaction speed is fast, and reaction is abundant, and concentration is uniform, and treatment effeciency is substantially improved.
Description
Technical field
The invention belongs to technical field of sewage more particularly to a kind of novel liquid complexing nano flocculant preparation sides
Method.
Background technology
With the continuous deep people of China's opening, the environmental consciousness of people is more and more stronger, the more sanitary sewage discharges of country
Corresponding discharge standard is formulated.Consumer waste infiltration liquid and livestock culturing waste water are containing plurality of heavy metal, and direct emission is to environment
Harm is generated, consumer waste infiltration liquid and livestock culturing waste water, which need to comply with standard by processing, could permit discharge.
Heavy metal pollution is one of Tough questions that China's water environment faces and endangers huge water pollution problems.By
In it with high toxicity, cumulative bad and persistence, serious threat dampening environmental ecology and drinking water safety.Heavy metal pollution is extensive
It is from industries, the main pollution factor such as life and livestock culturing waste water, mining, ore dressing, smelting, chemical industry, intermetallic composite coating
Lead, cadmium, chromium, mercury, arsenic, zinc etc..The processing of various heavy composite waste realizes that each pollution factor qualified discharge is extremely difficult, thus
Medicament and the technique for developing high-efficiency and economic processing various heavy composite waste are extremely important.
At present, mainly there are four classes for various heavy composite waste processing method：1) physical treatment process：Mainly pass through
Physical action, to detach, recycle the undissolved wastewater treatment method in suspended state polluter in waste water, as gravity centrifuges
Method (air supporting, flotation etc.), centrifugal separation and sieving blocking cut-off process etc..2) method of chemical treatment：It is to be made by chemical reaction and mass transfer
For detach, remove in waste water in dissolving, colloidal state polluter or be translated into method at the waste water of innocuous substance, such as
Flocculation, neutralization, redox, absorption, ion exchange or reverse osmosis etc..3) physical-chemical process：It is to be gone using physics chemical action
Except the method for the polluter in waste water, such as adsorption separation method, extraction and air- extraction.4) biochemical treatment method：It is logical
The method for crossing the metabolism removal Pollutants in Wastewater matter of microorganism.The most commonly used method is still method of chemical treatment.
It is crucial that suitable flocculant, the widely applied flocculant poly of existing market in flocculating in method of chemical treatment
Aluminium chloride (PAC), poly-ferric chloride (PFC).
Aluminium polychloride raw materials for production have shifted towards industrial aluminium hydroxide, viscous bauxite material since nineteen ninety, and product impurity is big
Amplitude reduction improves coagulation effect, but the dehydration that there is precipitation body refuse in use is poor, flocculate precipitate intensity granule
Spend small, cannot preferably work when water temperature is too low, also micro- toxicity the shortcomings of.
Poly-ferric chloride is one of principal item of inorganic polymer coagulant, but poor in the stability of its manufactured goods, short
It can occur to precipitate and weaken or lose efficiency of coagulation in phase, preparing efficient poly-ferric chloride need to control in low basicity model
It encloses, a certain amount of stabilizer " phosphoric acid salt " is added in development process to prepare the product that stability is up to 1 year or more,
The raising of efficiency of coagulation is still extremely limited compared with polymeric aluminum, experiments have shown that only improving 70% or so；But it is deposited in application method
Shortcoming include that flocculation surface is little, and processing water colour pool is bad, acidity is corrosive by force, and product stability difference etc. is asked
Topic.
Except single use polymer, also polyacrylamide, polyacrylamide abbreviation PAM is polymerize by acrylamide monomer
The polymer formed.Polyacrylamide is water soluble organic polymer polymer, insoluble in most of organic solvents, is had good
Flocculability, the frictional resistance between liquid can be reduced, can be divided into solid powdery and poly- third by the difference of product form
Two kinds of acrylamide lotion can be divided into nonionic, four type of anion, cation and amphoteric by ion characteristic point.But it is protected
Deposit that the time is short, and inconvenient to use, wastewater treatment efficiency is unstable.
Need a kind of holding time short, a kind of inconvenient to use, novel liquid complexing nano wadding of good sewage processing effect
Solidifying agent preparation method.
Invention content
For the above problem to be solved, the present invention provides a kind of novel liquid complexing nano flocculant preparation method.
The one kind of hydrochloric acid as pickle, is widely used in during pesticide producing and steel pipe, steel wire, strip and coloured
The pickling of metal, the processing of waste liquid is typically with being discharged after alkali neutralization, this not only causes to waste, but also pollutes environment.Metal
Product generally carries out pickling using hydrochloric acid, and the hydrochloride waste after pickling is largely to use lime in addition to small part is for sintering plant
It is discharged after neutralization, produces hydrochloride waste 500 (t is converted into 37% concentrated hydrochloric acid) per year, a large amount of lime, and treatment effect need to be consumed every year
It is bad.According to test.If producing compound water treatment flocculating agent polyaluminum ferric chloride with it, aluminium polychloride can be substantially reduced
The production cost of iron, and disposably handle waste liquid well, secondary pollution is not generated, reaches the treatment of wastes with processes of wastes against one another, the purpose to turn waste into wealth.
Technical scheme of the present invention：A kind of novel liquid complexing nano flocculant preparation method, it is characterised in that include
Following steps：
Step 1：Using the saliferous acid waste liquid of production process discharge, corrode aluminium, the iron aoxidized as raw material, be stirred,
Reaction generation alchlor and ferric trichloride mixture solution；
Step 2：It is molten that the alchlor for reacting generation and ferric trichloride mixture solution are rejoined into sodium hydroxide again
Liquid is adjusted to certain pH value, then stands a period of time, obtains polyaluminium chloride ferrous solution.
Further, step 3 is further included：It will obtain polyaluminium chloride ferrous solution and add organic cation high molecular products,
Generate nano flocculant.
Further, step 1 comprises the concrete steps that when saliferous acid waste liquid is at 65 DEG C~75 DEG C by several times and is slowly added to corruption
Aluminium, the iron aoxidized are lost, and is stirred continuously, makes reaction generation alchlor and the control of ferric trichloride mixture solution temperature 125
DEG C~145 DEG C between.
Further, there are intermediate steps between step 1 and step 2, specifically reaction generation alchlor and trichlorine
Change in iron mixture solution and add in aluminum strip, and be filtered processing while hot.
It by several times and is slowly added to sodium hydroxide when further, in step 2 and adjusts to certain pH value, pH value is specifically
3.6~4.5.
Further, organic cation macromolecule uses polyacrylamide in step 3, and polyacrylamide is using cation
Type polyacrylamide graft copolymer.
Further, precise and tiny chemicals is additionally added in step 3, precise and tiny chemicals is the silicate solution of activation.
Further, the silicate solution preparation method of activation is that the hydrochloric acid of the dropwise addition a concentration of 20% in silicate solution is right is molten
Liquid, to adjust the pH value of silicate solution, stirring polymerization at a certain temperature is the silicate solution that can be activated after a certain period of time.
Further, maturation process is carried out after step 3.
Further, 10-11h is cured at 45 DEG C~49 DEG C.
Present invention has the advantages that：
1. novel liquid complexing nano flocculant efficient compound kind, raw material is sharp to reach waste using pesticide waste
With ecological, environmental protective promotes agriculture green circulatory development；
2. novel liquid complexing nano flocculant is liquid form, compared with conventional solid-state product, the product reaction speed
Soon, reaction is abundant, and concentration is uniform, and treatment effeciency is substantially improved, and is used suitable for heavy industrialization；
3. by the way that its hydrolysis process is reasonably controlled to be allowed to be intended to form optimal morphology, special compound work is taken
Skill technology improves the efficiency of coagulation of iron system inorganic polymer coagulant, compensates for acidity and is corrosive by force, product stability difference etc.
Problem；
4. for novel liquid complexing nano flocculant on treatment effect, compared with existing products in markets, the holding time is long, makes
With convenient, good sewage processing effect.
Description of the drawings
Fig. 1 is the flow diagram of the embodiment of the present invention 2
Specific embodiment
It explains below in conjunction with the accompanying drawings to the specific embodiment of the present invention.
A kind of novel liquid complexing nano flocculant preparation method, includes following steps：
Step 1：Using the saliferous acid waste liquid of production process discharge, corrode aluminium, the iron aoxidized as raw material, be stirred,
Reaction generation alchlor and ferric trichloride mixture solution；
Step 2：It is molten that the alchlor for reacting generation and ferric trichloride mixture solution are rejoined into sodium hydroxide again
Liquid is adjusted to certain pH value, then stands a period of time, obtains polyaluminium chloride ferrous solution.
Further include step 3：It will obtain polyaluminium chloride ferrous solution and add organic cation high molecular products, generation is compound
Nano flocculant.
Step 1 comprises the concrete steps that the gradation when saliferous acid waste liquid is at 65 DEG C~75 DEG C and is slowly added to corrosion aluminium, oxidation
Iron, and be stirred continuously, make reaction generation alchlor and the control of ferric trichloride mixture solution temperature at 125 DEG C~145 DEG C
Between.
There are intermediate steps between step 1 and step 2, specifically reaction generation alchlor and ferric trichloride mixture
Aluminum strip is added in solution, and is filtered processing while hot.
It by several times and is slowly added to sodium hydroxide when in step 2 and adjusts to certain pH value, pH value is specifically 3.6~4.5.
Organic cation macromolecule uses polyacrylamide in step 3, and polyacrylamide uses cationic polyacrylamide
Amine graft copolymer.
Precise and tiny chemicals is additionally added in step 3, precise and tiny chemicals is the silicate solution of activation.
The silicate solution preparation method of activation is the hydrochloric acid solution of the dropwise addition a concentration of 20% in silicate solution is right, to adjust
The pH value of silicate solution, the silicate solution that stirring polymerization at a certain temperature can be activated after a certain period of time.
Maturation process is carried out after step 3.
10-11h is cured at 45 DEG C~49 DEG C.
Embodiment 1
A kind of novel liquid complexing nano flocculant preparation method, includes following steps：
Step 1：Using the saliferous acid waste liquid of production process discharge, corrode aluminium, the iron aoxidized as raw material, be stirred,
Reaction generation alchlor and ferric trichloride mixture solution；
Step 2：It is molten that the alchlor for reacting generation and ferric trichloride mixture solution are rejoined into sodium hydroxide again
Liquid is adjusted to certain pH value, then stands a period of time, obtains polyaluminium chloride ferrous solution, generates composite Nano flocculant.
Embodiment 2
A kind of novel liquid complexing nano flocculant preparation method, includes following steps：
Step 1：Using the saliferous acid waste liquid of production process discharge, corrode aluminium, the iron aoxidized as raw material, be stirred,
Reaction generation alchlor and ferric trichloride mixture solution；
Step 2：It is molten that the alchlor for reacting generation and ferric trichloride mixture solution are rejoined into sodium hydroxide again
Liquid is adjusted to certain pH value, then stands a period of time, obtains polyaluminium chloride ferrous solution.
Step 3：It will obtain polyaluminium chloride ferrous solution and add organic cation high molecular products, generation composite Nano wadding
Solidifying agent.
Embodiment 3
A kind of novel liquid complexing nano flocculant preparation method, includes following steps：
Step 1：Saliferous acid waste liquid by several times and is slowly added to the iron for corroding aluminium, aoxidizing, and constantly stir at 65 DEG C~75 DEG C
It mixes, makes reaction generation alchlor and the control of ferric trichloride mixture solution temperature between 125 DEG C~145 DEG C, reaction generation
Alchlor and ferric trichloride mixture solution；
Step 2：Aluminum strip is added in, and be filtered while hot in reaction generation alchlor and ferric trichloride mixture solution
Processing.Add in aluminum strip, it is therefore intended that the heavy metal ion in substitutional solution should be carried out, such as be reacted under constant agitation
In violent, heating is too fast, when generating bumping and excessive cylinder, can suitably spray cooling water temperature and cylinder pressure.It is filtered processing while hot
The heavy metal precipitation object displaced is filtered away.
Step 3：It is molten that the alchlor for reacting generation and ferric trichloride mixture solution are rejoined into sodium hydroxide again
Liquid is adjusted to certain pH value, then stands a period of time, obtains polyaluminium chloride ferrous solution.
Step 3：It will obtain polyaluminium chloride ferrous solution and add organic cation high molecular products, generation composite Nano wadding
Solidifying agent.
Embodiment 4
Step 1：Saliferous acid waste liquid by several times and is slowly added to the iron for corroding aluminium, aoxidizing, and constantly stir at 65 DEG C~75 DEG C
It mixes, makes reaction generation alchlor and the control of ferric trichloride mixture solution temperature between 125 DEG C~145 DEG C, reaction generation
Alchlor and ferric trichloride mixture solution；
Step 2：Aluminum strip is added in, and be filtered while hot in reaction generation alchlor and ferric trichloride mixture solution
Processing.Add in aluminum strip, it is therefore intended that the heavy metal ion in substitutional solution should be carried out, such as be reacted under constant agitation
In violent, heating is too fast, when generating bumping and excessive cylinder, can suitably spray cooling water temperature and cylinder pressure.It is filtered processing while hot
The heavy metal precipitation object displaced is filtered away.
Step 3：Filtration treatment mixture solution is rejoined into sodium hydroxide solution again, is adjusted to certain pH value 3.6
After~4.5, then 35min-1h is stood, obtain polyaluminium chloride ferrous solution.
Step 4：It will obtain polyaluminium chloride ferrous solution and add organic cation high molecular products, generation composite Nano wadding
Solidifying agent.
Embodiment 5
Step 1：Saliferous acid waste liquid by several times and is slowly added to the iron for corroding aluminium, aoxidizing, and constantly stir at 65 DEG C~75 DEG C
It mixes, makes reaction generation alchlor and the control of ferric trichloride mixture solution temperature between 125 DEG C~145 DEG C, reaction generation
Alchlor and ferric trichloride mixture solution；
Step 2：Aluminum strip is added in, and be filtered while hot in reaction generation alchlor and ferric trichloride mixture solution
Processing.Add in aluminum strip, it is therefore intended that the heavy metal ion in substitutional solution should be carried out, such as be reacted under constant agitation
In violent, heating is too fast, when generating bumping and excessive cylinder, can suitably spray cooling water temperature and cylinder pressure.It is filtered processing while hot
The heavy metal precipitation object displaced is filtered away.
Step 3：Filtration treatment mixture solution is rejoined into sodium hydroxide solution again, is adjusted to certain pH value 3.6
After~4.5, then 35min~1h is stood, obtain polyaluminium chloride ferrous solution.
Step 4：It will obtain polyaluminium chloride ferrous solution and add cationic-type polyacrylamide graft copolymerization Tetramune, it is raw
Into composite Nano flocculant.
Embodiment 6
Step 1：Saliferous acid waste liquid by several times and is slowly added to the iron for corroding aluminium, aoxidizing, and constantly stir at 65 DEG C~75 DEG C
It mixes, makes reaction generation alchlor and the control of ferric trichloride mixture solution temperature between 125 DEG C~145 DEG C, reaction generation
Alchlor and ferric trichloride mixture solution；
Step 2：Aluminum strip is added in, and be filtered while hot in reaction generation alchlor and ferric trichloride mixture solution
Processing.Add in aluminum strip, it is therefore intended that the heavy metal ion in substitutional solution should be carried out, such as be reacted under constant agitation
In violent, heating is too fast, when generating bumping and excessive cylinder, can suitably spray cooling water temperature and cylinder pressure.It is filtered processing while hot
The heavy metal precipitation object displaced is filtered away.
Step 3：Filtration treatment mixture solution is rejoined into sodium hydroxide solution again, is adjusted to certain pH value 3.6
After~4.5, then 35min-1h is stood, obtain polyaluminium chloride ferrous solution.
Step 4：It will obtain polyaluminium chloride ferrous solution and add cationic-type polyacrylamide graft copolymerization Tetramune and work
The silicate solution of change generates composite Nano flocculant.
The silicate solution preparation method of activation is the hydrochloric acid solution of the dropwise addition a concentration of 20% in silicate solution is right, to adjust
The pH value of silicate solution, the silicate solution that stirring polymerization at a certain temperature can be activated after a certain period of time.
Embodiment 7
Step 1：Saliferous acid waste liquid by several times and is slowly added to the iron for corroding aluminium, aoxidizing, and constantly stir at 65 DEG C~75 DEG C
It mixes, makes reaction generation alchlor and the control of ferric trichloride mixture solution temperature between 125 DEG C~145 DEG C, reaction generation
Alchlor and ferric trichloride mixture solution；
Step 2：Aluminum strip is added in, and be filtered while hot in reaction generation alchlor and ferric trichloride mixture solution
Processing.Add in aluminum strip, it is therefore intended that the heavy metal ion in substitutional solution should be carried out, such as be reacted under constant agitation
In violent, heating is too fast, when generating bumping and excessive cylinder, can suitably spray cooling water temperature and cylinder pressure.It is filtered processing while hot
The heavy metal precipitation object displaced is filtered away.
Step 3：Filtration treatment mixture solution is rejoined into sodium hydroxide solution again, is adjusted to certain pH value 3.6
After~4.5, then 35min-1h is stood, obtain polyaluminium chloride ferrous solution.
Step 4：It will obtain polyaluminium chloride ferrous solution and add cationic-type polyacrylamide graft copolymerization Tetramune and work
The silicate solution of change.The silicate solution preparation method wherein activated is that the hydrochloric acid of the dropwise addition a concentration of 20% in silicate solution is right is molten
Liquid, to adjust the pH value of silicate solution, stirring polymerization at a certain temperature is the silicate solution that can be activated after a certain period of time.
Step 5：10~11h is cured at 45 DEG C~49 DEG C, generates composite Nano flocculant.
The selection of preparation condition
1. the regulation and control of acidity
Using the saliferous acid waste liquid of production process discharge, corrode aluminium, the iron aoxidized as raw material, corrosion aluminium is aluminium simple substance in air
In contacted with oxygen, the aluminum oxide film fine and close into one layer prevents further oxidation, aluminium is more resistant to corrosion.The iron of oxidation
It is that iron simple substance contacts with oxygen can generate that di-iron trioxide (iron rust) and aluminum oxide film are different, and iron rust is loose in air
, it cannot not only prevent to continue to aoxidize, loose iron rust can also combine the part vapor accelerated oxidation in air.
The activity of iron is less than aluminium, and dilute hydrochloric acid is first and aoxidizes reactive aluminum.
The main chemical reactions occurred in preparation process：
Al2O3+ 6HCl==2AlCl3+3H20
2AL+6HCL=2ALCL3+3H2↑
Fe2O3+ 6HCl=2FeCl3+3H2O
Fe+2HCl=FeCl2+H2↑
4FeCl2+O2+ 4HCl=4FeCl3+2H2O
Because aluminium is typical amphiprotic substance, the control of solution acidity is stringenter, and when acidity is larger, aluminium is basic in the solution
On with Al3+Form exist, do not have polymerization：
Al(OH)3+3H+=Al3++3H2O
When acidity is smaller, aluminium is mainly with AlO- 2Form exists, and the degree of polymerization is small not to be polymerize even：
Al(OH)3+OH—=AlO- 2+2H2O
Under different acidity conditions, aluminium there are following ionization phenomena,
Al3++OH-=Al (OH)3=H++AlO- 2+H2O
Through experiment, when pH is less than 3.6, only a small amount of alkali or aluminium chloride ferrum in solution, as pH value increases, solution is got over
Come thicker, stirred with glass bar, solution can lead silk when lifting, and observe its structure and polyaluminum ferric chloride knot under an electron microscope
Structure is the same.When pH is more than 4.4, solution starts to weaken again, when glass bar lifts, hence it is evident that does not lead silk, becomes water sample at leisure
Solution.It is thus determined that it is optimum acidity that pH, which is 3.6~4.4,.
2. the control of temperature
Aluminium reacts acutely with hydrochloric acid, and solution temperature rises rapidly, and the polymerization of temperature low reaction is slow, and the time is long；Temperature is high, Yi Yin
Bumping and excessive cylinder phenomenon are played, waste of raw materials or even splashing is caused to hurt sb.'s feelings.With the speed for being stirred continuously and adding material in step 1
Control the temperature of solution, it is more economical if equipped with recirculated cooling water, it is safer.Through experiment, material must be at 65 DEG C~75 DEG C
When by several times and be slowly added to, and be stirred continuously, make solution temperature control at 125 DEG C~145 DEG C.
3. material proportion
The content of iron is higher in raw material, and product is more sticky, and color is deeper.Viscosity is excessively high to make troubles to operation, water purification
Effect is also undesirable.[Fe] [/Fe+Al] molar ratio is 1/9~1/6, and [Fe+Al] total concentration is respectively 0.4mOl/L, 0.6mOl/
L, 1.3mOl/L and 3.0mOl/L, mole when total concentration either product quality, flocculation purifying water effect are good.
4. polychloride ferro-aluminum
In the case where pH is 3.6~4.4 acidity condition, the AlCl in solution3, FeCl3Through hydrolytic polymerization into liquid polymeric chlorination
Ferro-aluminum, chemical formula
[Al2(OH)nCl6-n]m.[Fe2(OH)nCl6- n] m, wherein N1~5, less than or equal to 10.
5. quality index compares
1 quality index of table compares
By Experimental Comparison, the quality of embodiment 6 and embodiment 7 protrudes, and table 1 is statistics indicate that the polymerization produced with waste hydrochloric acid
The quality index of aluminium chloride ferrum fully achieves requirement.
6. sewage disposal Comparative result
2 sewage disposal Comparative result of table
7. the treatment effect of composite Nano flocculant
By Experimental Comparison composite Nano flocculant using the product of embodiment 6 and embodiment 7
(1) ferro-aluminum copolymer has the characteristics of Polyferric Sulfate and poly-aluminium concurrently, is the best substitute of Polyferric Sulfate and poly-aluminium, and anti-during effect
Answer that speed is fast, sedimentation is rapid, turbidity removal effect is good.
(2) consumer waste infiltration liquid and livestock culturing waste water and Industrial Waste Water Treatments are widely used in, to the solid suspended matter of water
(SS), chemical oxygen consumption (COC) (COD), biological oxygen demand (BOD) and heavy metal have very high removal rate.
(3) it is efficiently quick, charge neutrality can be generated, bridging action, strong adsorption, flco formed soon, and particle is big, and sedimentation is fast
Degree is fast.
(4) it is adaptable, it is suitble to pH value range wide (pH4~10), small to water temperature sensibility, LOW TEMPERATURES nor affects on effect
Fruit.
(5) there is the advantages that molding is fast, active good, easy to filter, nontoxic and corrosivity is small compared with Polyferric Sulfate.
Compared with prior art, 1. novel liquid complexing nano flocculant efficient compound kind, raw material are given up using pesticide
For gurry to reach waste utilization, ecological, environmental protective promotes agriculture green circulatory development；2. novel liquid complexing nano flocculant is liquid
State form, compared with conventional solid-state product, the product reaction speed is fast, and reaction is abundant, and concentration is uniform, and treatment effeciency substantially carries
It rises, is used suitable for heavy industrialization；3. by the way that its hydrolysis process is reasonably controlled to be allowed to be intended to form optimal morphology,
Special composite technology is taken, improves the efficiency of coagulation of iron system inorganic polymer coagulant, compensate for acidity has corrosion by force
The problems such as property, product stability is poor；4. novel liquid complexing nano flocculant is on treatment effect, with existing products in markets phase
Than the holding time is long, easy to use, good sewage processing effect.
An example of the present invention is described in detail above, but content is only presently preferred embodiments of the present invention, no
The practical range of the present invention can be construed as limiting.Any changes and modifications in accordance with the scope of the present application,
It should still belong within the patent covering scope of the present invention.
Claims (10)
1. a kind of novel liquid complexing nano flocculant preparation method, it is characterised in that include following steps：
Step 1：Using the saliferous acid waste liquid of production process discharge, corrode aluminium, the iron aoxidized as raw material, be stirred, react
Generate alchlor and ferric trichloride mixture solution；
Step 2：The alchlor for reacting generation and ferric trichloride mixture solution are rejoined into sodium hydroxide solution again, adjusted
After section to certain pH value, then a period of time is stood, obtain polyaluminium chloride ferrous solution.
2. a kind of novel liquid complexing nano flocculant preparation method according to claim 1, it is characterised in that further include
Step 3：It will obtain polyaluminium chloride ferrous solution and add organic cation high molecular products.
A kind of 3. novel liquid complexing nano flocculant preparation method according to claim 1 or 2, it is characterised in that step
One comprise the concrete steps that when saliferous acid waste liquid is at 65 DEG C~75 DEG C by several times and be slowly added to corrosion aluminium, the iron of oxidation, and constantly
Stirring makes reaction generation alchlor and the control of ferric trichloride mixture solution temperature between 125 DEG C~145 DEG C.
A kind of 4. novel liquid complexing nano flocculant preparation method according to claim 1 or 2, it is characterised in that step
There are intermediate steps between one and step 2, specifically add in aluminium in reaction generation alchlor and ferric trichloride mixture solution
Item, and it is filtered processing while hot.
A kind of 5. novel liquid complexing nano flocculant preparation method according to claim 1 or 2, it is characterised in that step
It by several times and is slowly added to sodium hydroxide when in two and adjusts to certain pH value, pH value is specifically 3.6~4.5.
A kind of 6. novel liquid complexing nano flocculant preparation method according to claim 2, it is characterised in that step 3
Middle organic cation macromolecule uses polyacrylamide cationic, and polyacrylamide uses polyacrylamide graft copolymer.
7. according to a kind of any novel liquid complexing nano flocculant preparation method of claim 6, it is characterised in that step
Precise and tiny chemicals is additionally added in rapid three, precise and tiny chemicals is the silicate solution of activation.
8. a kind of novel liquid complexing nano flocculant preparation method according to claim 7, it is characterised in that activation
Silicate solution preparation method is the hydrochloric acid solution of the dropwise addition a concentration of 20% in silicate solution is right, to adjust the pH of silicate solution
Value, the silicate solution that stirring polymerization at a certain temperature can be activated after a certain period of time.
9. according to a kind of any novel liquid complexing nano flocculant preparation method of claim 2,6,7, feature exists
Maturation process is carried out after step 3.
10. a kind of novel liquid complexing nano flocculant preparation method according to claim 9, it is characterised in that at 45 DEG C
~49 DEG C of curing 10-11h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810038624.0A CN108191020A (en) | 2018-01-16 | 2018-01-16 | A kind of novel liquid complexing nano flocculant preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810038624.0A CN108191020A (en) | 2018-01-16 | 2018-01-16 | A kind of novel liquid complexing nano flocculant preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108191020A true CN108191020A (en) | 2018-06-22 |
Family
ID=62589205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810038624.0A Pending CN108191020A (en) | 2018-01-16 | 2018-01-16 | A kind of novel liquid complexing nano flocculant preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108191020A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108773888A (en) * | 2018-08-21 | 2018-11-09 | 清华大学 | Flocculant and its preparation method and application |
| CN112158933A (en) * | 2020-10-19 | 2021-01-01 | 西安工程大学 | Polyaluminum ferric chloride flocculant and preparation method thereof |
| CN112624283A (en) * | 2020-11-27 | 2021-04-09 | 飞潮(上海)环境技术有限公司 | Method for preparing water purifying agent by using dust-collecting slag |
| CN113185024A (en) * | 2021-04-25 | 2021-07-30 | 吉林梅基特环保科技有限公司 | Method for purifying condensed water |
| CN113816550A (en) * | 2021-09-01 | 2021-12-21 | 深圳市世清环保科技有限公司 | Method for recycling water washing acid after anodic oxidation chemical polishing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1253913A (en) * | 1998-11-13 | 2000-05-24 | 地矿部水文地质工程地质技术方法研究所 | Production process of defluorination water-purifying agent-pentahydroxyl aluminium chloride |
| JP2012176864A (en) * | 2011-02-25 | 2012-09-13 | Unekura Kogyo Kk | Method for producing polyferric sulfate |
| CN103145196A (en) * | 2013-03-28 | 2013-06-12 | 青岛新世纪环境工程有限公司 | Method for producing polymerization ferric chloride by utilizing waste hydrochloric acid and waste ferrous mud |
| CN104118925A (en) * | 2014-08-08 | 2014-10-29 | 中国船舶重工集团公司第七○二研究所 | Composite high-efficiency inorganic coagulant |
| CN105502424A (en) * | 2015-12-02 | 2016-04-20 | 河南开祥精细化工有限公司 | Method for producing polysilicate aluminum sulfate calcium iron flocculant from industrial waste sulfuric acid and red mud |
-
2018
- 2018-01-16 CN CN201810038624.0A patent/CN108191020A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1253913A (en) * | 1998-11-13 | 2000-05-24 | 地矿部水文地质工程地质技术方法研究所 | Production process of defluorination water-purifying agent-pentahydroxyl aluminium chloride |
| JP2012176864A (en) * | 2011-02-25 | 2012-09-13 | Unekura Kogyo Kk | Method for producing polyferric sulfate |
| CN103145196A (en) * | 2013-03-28 | 2013-06-12 | 青岛新世纪环境工程有限公司 | Method for producing polymerization ferric chloride by utilizing waste hydrochloric acid and waste ferrous mud |
| CN104118925A (en) * | 2014-08-08 | 2014-10-29 | 中国船舶重工集团公司第七○二研究所 | Composite high-efficiency inorganic coagulant |
| CN105502424A (en) * | 2015-12-02 | 2016-04-20 | 河南开祥精细化工有限公司 | Method for producing polysilicate aluminum sulfate calcium iron flocculant from industrial waste sulfuric acid and red mud |
Non-Patent Citations (1)
| Title |
|---|
| 舒万艮: "《有色金属精细化工产品生产与应用》", 31 December 1995, 中南工业大学出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108773888A (en) * | 2018-08-21 | 2018-11-09 | 清华大学 | Flocculant and its preparation method and application |
| CN112158933A (en) * | 2020-10-19 | 2021-01-01 | 西安工程大学 | Polyaluminum ferric chloride flocculant and preparation method thereof |
| CN112624283A (en) * | 2020-11-27 | 2021-04-09 | 飞潮(上海)环境技术有限公司 | Method for preparing water purifying agent by using dust-collecting slag |
| CN113185024A (en) * | 2021-04-25 | 2021-07-30 | 吉林梅基特环保科技有限公司 | Method for purifying condensed water |
| CN113816550A (en) * | 2021-09-01 | 2021-12-21 | 深圳市世清环保科技有限公司 | Method for recycling water washing acid after anodic oxidation chemical polishing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Iwuozor | Prospects and challenges of using coagulation-flocculation method in the treatment of effluents | |
| CN108191020A (en) | A kind of novel liquid complexing nano flocculant preparation method | |
| Chen et al. | Effect of dosing method and pH on color removal performance and floc aggregation of polyferric chloride–polyamine dual-coagulant in synthetic dyeing wastewater treatment | |
| Tzoupanos et al. | Coagulation-flocculation processes in water/wastewater treatment: the application of new generation of chemical reagents | |
| CN104556331B (en) | PAC (polyaluminium chloride)-modified sodium alginate inorganic-organic composite flocculant and preparation method thereof | |
| CN100348511C (en) | Flocculation agent of poly ferric-dimethyl diallyl ammonium chloride homopolymer inorganic organic composited and preparation process thereof | |
| CN106430495B (en) | A kind of preparation method of the composite decoloration flocculant for wastewater treatment | |
| CN105152291A (en) | PAFSI-PAME composite flocculant and preparation method thereof | |
| CN106745624A (en) | A kind of inorganic-organic hybrid flocculation material and preparation method thereof | |
| CN101003390A (en) | Method for preparing flocculant of ferric chloride of polysilicon acid | |
| CN107746085A (en) | A kind of paper-making waste water treating agent and its method for handling paper waste | |
| CN108996647A (en) | Preparation method of magnetic coupling flocculant and products thereof and application | |
| CN110304703B (en) | Preparation method for producing polyaluminium chloride water purifying agent by using aluminium ash | |
| US3397139A (en) | Waste treatment process | |
| CN109942060A (en) | A kind of sewage treatment drug of mineral base flocks | |
| CN1385373A (en) | Coagulant for sewage treatment | |
| CN102689906B (en) | Method for preparing polysilicate aluminum ferric chloride by using aluminum foil acid and ferrous acid | |
| KR20110131535A (en) | The method and appuratus of removing total nitrogen and phosphate in sewage and wastewater using precipitation-agent of rapidity for coagulation an flocculation | |
| CN101734772B (en) | Composite flocculant for treating industrial waste water and preparation method | |
| CN101717123B (en) | Method for preparing modified poly-ferric chloride coagulant | |
| CN102701387A (en) | Titanium tetrachloride-poly dimethyl diallyl ammonium chloride inorganic-organic compound flocculant and preparation method thereof | |
| CN105016569B (en) | Processing system and method for cold rolling reverse osmosis strong brine | |
| CN107151030A (en) | A kind of preparation method and applications for polymerizeing zirconium chloride inorganic polymer coagulant | |
| CN102633335B (en) | Sewage treatment method | |
| CN1221476C (en) | Method for preparing flocculating agent by using refractory cement and roasted slag of pyrite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180622 |