CN107055726B - A kind of composite flocculation agent and its preparation method and application - Google Patents
A kind of composite flocculation agent and its preparation method and application Download PDFInfo
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- CN107055726B CN107055726B CN201710137759.8A CN201710137759A CN107055726B CN 107055726 B CN107055726 B CN 107055726B CN 201710137759 A CN201710137759 A CN 201710137759A CN 107055726 B CN107055726 B CN 107055726B
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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
- 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
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
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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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of composite flocculation agent and its preparation method and application, component A includes diatomite, bentonite, montmorillonite powder, sodium chloride, carclazyte, kaolin, plants essential oil, light green pigment and deionized water；Component B includes PAMC, plants essential oil, light green pigment and deionized water；The weight ratio that component A and component B are used in combination is：1‑3:1‑3.The flocculant of this case, under normal temperature and pressure, the various composition in component A is added into stirring in reactor and forms component A；PAMC is slowly added to stirring in reactor and forms component B.The composite flocculation agent of this case, first component A is put into sewage during use, then component B is put into sewage and carries out coagulation.The composite flocculation agent of this case, flocculate form that the time is short and form is thick is easy to salvage, and reach more than 80% to COD clearances, and to the turbidity removal rate of sanitary sewage up to more than 90%, total tp removal rate is up to more than 92%, on handling the pH value of water substantially without influence.
Description
Technical field
The present invention relates to field of environment protection, and in particular to a kind of composite flocculation agent and its preparation method and application.
Background technology
It is endless that slag pollutant process is painted in the recirculated waters such as existing spray painting oil spout factory, printing house, Electroplate Factory, sewage treatment plant
Entirely, cause recirculated water service life short, stink foul gas occur, it is necessary to often change recirculated water, add manufacturing enterprise and exist
Fund input in terms of water process simultaneously pollutes environment, river etc..In water treatment procedure, flocculant mainly makes with just (negative)
Electrical group is neutralized in some water with the negative particle for (just) being electrically difficult to separate, and is reduced its potential, is at unstable
State, and using its aggregation property these particles are concentrated, and separated by physics or chemical method.
Flocculant is mainly divided to inorganic, organic two major class, in addition with microbial flocculant.Inorganic flocculating agent is cheap,
But can have a negative impact to human health and ecological environment；Although organic polymer coargulator dosage is few, scum silica frost yield is few, wadding
Solidifying ability is strong, and flco can be easily separated, and oil removing and oil removal effect are good, but the residual monomer of this kind of high polymer easily causes rugged, cause
Cancer, mutagenesis, thus it is restricted its application；Microbial flocculant because secondary pollution, and advantages of good adsorption effect is not present,
Easy to use, application prospect is expected, but at this stage using fewer.
Sewage is a kind of complicated, stable dispersion, and single flocculant can not often obtain satisfied treatment effect,
Therefore, Recent study personnel start development and meet flocculant.It was verified that composite flocculation agent shows to be better than single flocculant
Effect.Research shows, the flocculating effect of Inorganic/organic Complex Flocculent more preferably, the replicating machine of Inorganic/organic Complex Flocculent
The main expected synergy of reason is relevant, and chemical action occurs for pollutant impurity and flocculant in one side waste water, and flocculant is worn
Thoroughly with the functional group of destruction pollutant impurity, make it that stickiness be completely eliminated；On the other hand, flocculant is by " bridging " principle,
Absorption is adsorbed in another pollutant impurity particle surface again on the surface of pollutant impurity particle, is assembled by the glutinous pollutant that disappears
Impurity particle, ultimately form the spongy bulk floccule that can easily float.
Different formulations, different proportion Inorganic/organic Complex Flocculent flocculating effect exist very big difference, make pollution
The content of material that thing eliminates the content of material of stickiness excessively and adsorbs pollutant is very few, and pollutant can not adsorb one completely
Rise, turbidity is still very high after sewage disposal；When making, the content of material of pollutant elimination stickiness is very few, and makes what pollutant adsorbed
Content of material is too high, and the stickiness of pollutant can not be completely eliminated in flocculant, and all contaminants can not be attached together,
Turbidity of sewage clearance is not high, and sewage disposal is not thorough.
The content of the invention
For weak point present in above-mentioned technology, a kind of flocculant usage of present invention offer is few, flocculating effect is good, dirty
High composite flocculation agent of water treatment efficiency and its preparation method and application.
To achieve the above object, the present invention provides a kind of composite flocculation agent, including component A and component B：
Wherein component A includes following component by weight percentage：
Diatomite：2-5%；
Bentonite：3-8%；
Montmorillonite powder：2-8%；
Sodium chloride：1-5%；
Carclazyte：1-10%；
Kaolin：3-10%；
Plants essential oil：0.1-0.5%；
Light green pigment；0-0.05%；
Deionized water：53.45-87.9%；
Wherein component B includes following component by weight percentage：
PAMC：1-5%；
Plants essential oil：0.1-0.5%；
Light green pigment：0-0.05%；
Deionized water：94.45-98.9%；
The weight ratio that the component A and component B are used in combination is：1-3:1-3.
Wherein, the specific weight ratio of component A and component the B compound use is：1:1.
Wherein, the specific composition of the component A is as follows：
Diatomite：3%；
Bentonite：5%；
Montmorillonite powder：5%；
Sodium chloride：2%；
Carclazyte：5%；
Kaolin：6%；
Plants essential oil：0.3%；
Light green pigment；0.03%；
Deionized water：73.67%；
Wherein component B includes following component by weight percentage：
PAMC：3%；
Plants essential oil：0.3%；
Light green pigment：0.03%；
Deionized water：96.67%；
The weight ratio that the component A and component B are used in combination is：1：1.
Wherein, the plants essential oil is the one or more in lemon, Peppermint essential oil, oil of Cymbopogon winterianus, sweet orange oil.
Wherein, the PAMC molecular weight is 8,000,000-1,000 ten thousand.
Wherein, in addition to component C, the component C are aluminium polychloride, and component A, component B, component C are used in combination
Weight ratio is 1-3:1-3:0.5-1.5.
To achieve the above object, present invention also offers a kind of preparation method of composite flocculation agent, component A preparation method
Comprise the following steps：
Step 1：Under normal temperature and pressure, by the diatomite in component A, bentonite, montmorillonite powder, sodium chloride, carclazyte, kaolinite
Soil, plants essential oil, light green pigment, deionized water are added in the first reactor；
Step 2：The raw material of component A in step 1 is stirred into 5-7 hours in the first reactor, until forming light green color
Transparent mixed liquor；
Component B preparation method comprises the following steps：
Step 1：Under normal temperature and pressure, the plants essential oil in component B, light green pigment and deionized water are added into the second reaction
In kettle；
Step 2：PAMC in component B is added in the second reactor with 25g/s speed and stirs 7-
9 hours, until PAMC is thoroughly dispersed in formation greenish transparent mixed liquor in the second reactor.
To achieve the above object, the application process of composite flocculation agent of the invention is：Component A is added into sewage and carried out
Coagulating treatment, after stirring 5min, then component B is added into sewage and carries out coagulating treatment.
The beneficial effects of the invention are as follows：Compared with prior art, composite flocculation agent provided by the invention, component A and component B
The weight ratio of compound use exists：1-3:Between 1-3, the flocculate formation time is short and form is thick is easy to salvage, to COD clearances
Reach more than 80%, to the turbidity removal rate of sanitary sewage up to more than 90%, total tp removal rate is up to more than 92%, to processing
The pH value of water is substantially without influence.In the preparation of the composite flocculation agent of the present invention, various raw materials need to only be existed according to component A formula
Jade-green component A can be formed by being stirred in reactor；By component B PAMC with 25g/s speed
Stirring in reactor is added until PAMC is completely dispersed formation greenish transparent mixed liquor group in a kettle
Divide B.The preparation method of flocculant of the present invention is simple, and preparation condition is gentle, suitable for industrial production.The flocculant of the present invention exists simultaneously
In use, need first to add component A in sewage, so that component A fully wraps up Pollutants in Wastewater impurity and by chemistry makees
With the functional group for penetrating and destroying pollutant impurity, make pollutant that stickiness be completely eliminated；Component B is added after stirring 5min,
So that component B is by " bridging " principle, adsorbs and adsorbed again in another pollutant impurity on the surface of pollutant impurity particle
The surface of grain, assembles the pollutant impurity particle for disappearing glutinous by component A, it is cotton-shaped to ultimately form the spongy bulk that can easily float
Thing, it is easy to salvage and keeps water quality clean, can be recycled.
Embodiment
In order to more clearly state the present invention, the present invention is further described with reference to specific embodiment.
Diatomite be the accumulation of ancient times unicellular rudimentary plant diatom remains after, one kind for being formed by preliminary diagenesis
With porous biological silicalite.It is made up of the wall shell of diatom, there is multistage, a large amount of, micropore of ordered arrangement on wall shell.This
The unique microcellular structure of kind, assigns many excellent performances of diatomite.Such as：Stable performance, acidproof, pore volume is big, and aperture is big, than
Surface area is big, and adsorptivity is strong, and current potential is negative, and absorption positive charge ability is strong etc..
Bentonite is a kind of clay mineral using montmorillonite powder as main component, and primary chemical composition is SiO2, Al2O3,
Fe2O3, its crystal structure is made up of one layer of alumina octahedral chip of folder among two layers of silicon-oxy tetrahedron chip, due to bentonite
Itself contains Al2O3, Fe2O3, ferro-aluminum composite flocculation agent is produced with bentonite, compounding is reduced and alleviates, it is simple and easy in technique；By
In the chemical composition for using natural minerals as raw material, producing precipitation secondary pollution will not be produced close to size selective sampling value, sludge treatment.
Montmorillonite is the layer mineral being made up of the superfine hydrous alumino silicates of particle, is important clay mineral, typically
For block or earthy, molecular formula (Na, Ca) 0.33 (Al, Mg) 2 [Si4O10] (OH) 2nH2O, centre is alumina octahedral, on
The clay mineral for the three-layer tablet shape structure being made up of silicon-oxy tetrahedron down, crystal structure interlayer it is aqueous and some exchange sun from
Son, there is higher ion exchange capacity, there is higher water swelling ability, good absorption property and scattered suspension.
It with clay (mainly bentonite) be raw material that carclazyte, which is, through inorganic acid or salt or other methodization processing, then through water
Adsorbent made of rinsing, drying, outward appearance is off-white powder, odorless, tasteless, nontoxic, and absorption property is very strong, can be adsorbed coloured
Material, organic substance.
Kaolin is a kind of particulate clay pure as main component, quality using kandite, and outward appearance is in white, light gray
Deng color, in Huang, ash, black etc. when impure.Compact massive or loose earthy, there is soapy feeling, and hardness is less than nail.Proportion
2.4-2.6 there is water imbibition after drying.Refractoriness is up to 1770-1790 DEG C.Plasticity is low, and caking property is small, has good insulation
Property and chemical stability.
Component A main functions are to wrap up Pollutants in Wastewater impurity and pass through chemical action in composite flocculation agent of the present invention
The functional group of pollutant impurity is penetrated and destroyed, makes it that stickiness be completely eliminated.Component B is adsorbed in dirt by " bridging " principle
The surface of dye thing impurity particle is adsorbed again on the surface of another pollutant impurity particle, assembles the glutinous pollutant that disappeared by component A
Impurity particle, the spongy bulk floccule that can easily float is ultimately formed, is easy to salvage and keeps water quality clean, be recycled
Use.
Based on above-mentioned principle, the scheme and effect of composite flocculation agent of the present invention are illustrated with reference to specific embodiment.
Embodiment 1：
By diatomite 3g, organic modified bentonite 5g, montmorillonite powder 5g, sodium chloride 3g, carclazyte 5g, kaolin 8g, lemon
The well mixed 70.79g deionized waters of pouring into of essential oil 0.2g, pigment 0.01g are dispersed with stirring uniformly, form 100g flocculating agent A solution.
PAMC 3g, essence 0.1g, well mixed pour into 96.88g deionized waters of pigment 0.02g are dispersed with stirring
It is even, form 100g flocculating agent B solution.1L sewage is taken, adjusts pH to 7-10, first adds 30g flocculating agent A solution, is stirred 1 minute,
Then 30g flocculating agent B solution is added, stirring is stood after 1 minute.
Embodiment 2：
By diatomite 3g, organic modified bentonite 5g, montmorillonite powder 5g, sodium chloride 3g, carclazyte 5g, kaolin 8g, lemon
The well mixed 70.79g deionized waters of pouring into of essential oil 0.2g, pigment 0.01g are dispersed with stirring uniformly, form 100g flocculating agent A solution.
PAMC 3g, essence 0.1g, well mixed pour into 96.88g deionized waters of pigment 0.02g are dispersed with stirring
It is even, form 100g flocculating agent B solution.1L sewage is taken, adjusts pH to 7-10, first adds 20g flocculating agent A solution, is stirred 1 minute,
Then 40g flocculating agent B solution is added, stirring is stood after 2 minutes.
Embodiment 3：
By diatomite 3g, organic modified bentonite 5g, montmorillonite powder 5g, sodium chloride 3g, carclazyte 5g, kaolin 8g, lemon
The well mixed 70.79g deionized waters of pouring into of essential oil 0.2g, pigment 0.01g are dispersed with stirring uniformly, form 100g flocculating agent A solution.
PAMC 3g, essence 0.1g, well mixed pour into 96.88g deionized waters of pigment 0.02g are dispersed with stirring
It is even, form 100g flocculating agent B solution.1L sewage is taken, adjusts pH to 7-10, first adds 15g flocculating agent A solution, is stirred 1 minute,
Then 45g flocculating agent B solution is added, stirring is stood after 3 minutes.
Embodiment 4：
By diatomite 3g, organic modified bentonite 5g, montmorillonite powder 5g, sodium chloride 3g, carclazyte 5g, kaolin 8g, lemon
The well mixed 70.79g deionized waters of pouring into of essential oil 0.2g, pigment 0.01g are dispersed with stirring uniformly, form 100g flocculating agent A solution.
PAMC 3g, essence 0.1g, well mixed pour into 96.88g deionized waters of pigment 0.02g are dispersed with stirring
It is even, form 100g flocculating agent B solution.1L sewage is taken, adjusts pH to 7-10, first adds 40g flocculating agent A solution, is stirred 1 minute,
Then 20g flocculating agent B solution is added, stirring is stood after 0.5 minute.
Embodiment 5：
By diatomite 3g, organic modified bentonite 5g, montmorillonite powder 5g, sodium chloride 3g, carclazyte 5g, kaolin 8g, lemon
The well mixed 70.79g deionized waters of pouring into of essential oil 0.2g, pigment 0.01g are dispersed with stirring uniformly, form 100g flocculating agent A solution.
PAMC 3g, essence 0.1g, well mixed pour into 96.88g deionized waters of pigment 0.02g are dispersed with stirring
It is even, form 100g flocculating agent B solution.1L sewage is taken, adjusts pH to 7-10, first adds 24g flocculating agent A solution, is stirred 1 minute,
Then 36g flocculating agent B solution is added, stirring is stood after 1.5 minutes.
Embodiment 6：
By diatomite 3g, organic modified bentonite 5g, montmorillonite powder 5g, sodium chloride 3g, carclazyte 5g, kaolin 8g, lemon
The well mixed 70.79g deionized waters of pouring into of essential oil 0.2g, pigment 0.01g are dispersed with stirring uniformly, form 100g flocculating agent A solution.
PAMC 3g, essence 0.1g, well mixed pour into 96.88g deionized waters of pigment 0.02g are dispersed with stirring
It is even, form 100g flocculating agent B solution.1L sewage is taken, adjusts pH to 7-10, first adds 36g flocculating agent A solution, stirs 1.5 points
Clock, then adds 24g flocculating agent B solution, and stirring is stood after 1.5 minutes.
Embodiment 7：
By diatomite 3g, organic modified bentonite 5g, montmorillonite powder 5g, sodium chloride 3g, carclazyte 5g, kaolin 8g, lemon
The well mixed 70.79g deionized waters of pouring into of essential oil 0.2g, pigment 0.01g are dispersed with stirring uniformly, form 100g flocculating agent A solution.
PAMC 3g, essence 0.1g, well mixed pour into 96.88g deionized waters of pigment 0.02g are dispersed with stirring
It is even, form 100g flocculating agent B solution.1L sewage is taken, adjusts pH to 7-10, first adds 12g flocculating agent A solution, stirs 1.5 points
Clock, then adds 48g flocculating agent B solution, and stirring is stood after 2 minutes.
Embodiment 8：
By diatomite 3g, organic modified bentonite 5g, montmorillonite powder 5g, sodium chloride 3g, carclazyte 5g, kaolin 8g, lemon
The well mixed 70.79g deionized waters of pouring into of essential oil 0.2g, pigment 0.01g are dispersed with stirring uniformly, form 100g flocculating agent A solution.
PAMC 3g, essence 0.1g, well mixed pour into 96.88g deionized waters of pigment 0.02g are dispersed with stirring
It is even, form 100g flocculating agent B solution.1L sewage is taken, adjusts pH to 7-10, first adds 45g flocculating agent A solution, stirs 1.5 points
Clock, then adds 15g flocculating agent B solution, and stirring is stood after 1 minute.
Embodiment 9：
By diatomite 3g, organic modified bentonite 5g, montmorillonite powder 5g, sodium chloride 3g, carclazyte 5g, kaolin 8g, lemon
The well mixed 70.79g deionized waters of pouring into of essential oil 0.2g, pigment 0.01g are dispersed with stirring uniformly, form 100g flocculating agent A solution.
PAMC 3g, essence 0.1g, well mixed pour into 96.88g deionized waters of pigment 0.02g are dispersed with stirring
It is even, form 100g flocculating agent B solution.1L sewage is taken, adjusts pH to 7-10, first adds 48g flocculating agent A solution, stirs 1.5 points
Clock, then adds 12g flocculating agent B solution, and stirring is stood after 1 minute.
Embodiment 10：
By diatomite 2g, organic modified bentonite 3g, montmorillonite powder 2g, sodium chloride 1g, carclazyte 1g, kaolin 3g, lemon
Well mixed pour into 87.89g deionized waters of essential oil 0.1g, pigment 0.01g is dispersed with stirring uniformly, and it is molten to form 100g flocculating agent As
Liquid.PAMC 1g, lemon 0.1g, well mixed pour into 98.89g deionized waters of pigment 0.01g are stirred
Mix and be uniformly dispersed, form 100g flocculating agent B solution.1L sewage is taken, adjusts pH to 7-10,30g flocculating agent A solution is first added, stirs
Mix 1 minute, then add 30g flocculating agent B solution, stirring is stood after 1 minute.
Embodiment 11：
By diatomite 2.5g, organic modified bentonite 4g, montmorillonite powder 3.5g, sodium chloride 1.5g, carclazyte 3g, kaolin
Well mixed pour into 80.78g deionized waters of 4.5g, lemon 0.2g, pigment 0.02g is dispersed with stirring uniformly, forms 100g
Flocculating agent A solution.By PAMC 2g, lemon 0.2g, pigment 0.02g it is well mixed pour into 97.78g go from
It is dispersed with stirring in sub- water uniformly, forms 100g flocculating agent B solution.1L sewage is taken, adjusts pH to 7-10, first adds 30g flocculating agent As
Solution, stir 1 minute, then add 30g flocculating agent B solution, stirring is stood after 1 minute.
Embodiment 12：
By diatomite 3g, organic modified bentonite 5g, montmorillonite powder 5g, sodium chloride 2g, carclazyte 5g, kaolin 6g, lemon
Well mixed pour into 73.67g deionized waters of essential oil 0.3g, pigment 0.03g is dispersed with stirring uniformly, and it is molten to form 100g flocculating agent As
Liquid.PAMC 3g, lemon 0.3g, well mixed pour into 96.67g deionized waters of pigment 0.03g are stirred
Mix and be uniformly dispersed, form 100g flocculating agent B solution.1L sewage is taken, adjusts pH to 7-10,30g flocculating agent A solution is first added, stirs
Mix 1 minute, then add 30g flocculating agent B solution, stirring is stood after 1 minute.
Embodiment 13：
By diatomite 3.5g, organic modified bentonite 6g, montmorillonite powder 6g, sodium chloride 3g, carclazyte 7g, kaolin 7g, lemon
Well mixed pour into 67.06g deionized waters of lemon essential oil 0.4g, pigment 0.04g is dispersed with stirring uniformly, forms 100g flocculating agent As
Solution.PAMC 4g, lemon 0.4g, pigment 0.04g are well mixed and poured into 95.56g deionized waters
It is dispersed with stirring uniformly, forms 100g flocculating agent B solution.1L sewage is taken, adjusts pH to 7-10, first adds 30g flocculating agent A solution,
Stirring 1 minute, then adds 30g flocculating agent B solution, and stirring is stood after 1 minute.
Embodiment 14：
By diatomite 4g, organic modified bentonite 7g, montmorillonite powder 7g, sodium chloride 4g, carclazyte 9g, kaolin 9g, lemon
Well mixed pour into 59.51g deionized waters of essential oil 0.45g, pigment 0.04g is dispersed with stirring uniformly, and it is molten to form 100g flocculating agent As
Liquid.PAMC 4.5g, lemon 0.45g, pigment 0.04g are well mixed and poured into 95.01g deionized waters
It is dispersed with stirring uniformly, forms 100g flocculating agent B solution.1L sewage is taken, adjusts pH to 7-10, first adds 30g flocculating agent A solution,
Stirring 1 minute, then adds 30g flocculating agent B solution, and stirring is stood after 1 minute.
Embodiment 15：
By diatomite 5g, organic modified bentonite 8g, montmorillonite powder 8g, sodium chloride 5g, carclazyte 10g, kaolin 10g, lemon
Well mixed pour into 53.45g deionized waters of lemon essential oil 0.5g, pigment 0.05g is dispersed with stirring uniformly, forms 100g flocculating agent As
Solution.PAMC 5g, lemon 0.5g, pigment 0.05g are well mixed and poured into 94.45g deionized waters
It is dispersed with stirring uniformly, forms 100g flocculating agent B solution.1L sewage is taken, adjusts pH to 7-10, first adds 30g flocculating agent A solution,
Stirring 1 minute, then adds 30g flocculating agent B solution, and stirring is stood after 1 minute.
The component and content ratio of flocculating agent A agent and B agent in embodiment 1-9 are all identicals, add same volume, same
In the sewage of pollution sources, also different to the effect of sewage disposal because component A and component B proportioning is different, table 1 is the present invention
The disposition parameter comparison of composite flocculation agent in embodiment 1-9 to sewage：
The embodiment 1-9 of table 1 contrasts to wastewater purifying efficiency
| Flocculant sample sequence number | Component A:Component B | COD clearances | Nitrogen removal rate | Turbidity removal rate |
| Embodiment 1 | 1:1 | 94.5 | 96.2 | 92.8 |
| Embodiment 2 | 1:2 | 88.9 | 95.1 | 91.6 |
| Embodiment 3 | 1:3 | 85.7 | 92.7 | 90.1 |
| Embodiment 4 | 2:1 | 90.1 | 95.3 | 90.7 |
| Embodiment 5 | 2:3 | 93.4 | 95.1 | 92.1 |
| Embodiment 6 | 3:2 | 93.7 | 95.8 | 92.7 |
| Embodiment 7 | 1:4 | 71.2 | 89.2 | 60.2 |
| Embodiment 8 | 3:1 | 82.1 | 93.6 | 90.2 |
| Embodiment 9 | 4:1 | 80.4 | 92.4 | 78.2 |
As can be seen from Table 1, the weight ratio that the component A and component B of composite flocculation agent of the present invention are used in combination exists：1-3:1-
When between 3, the flocculate formation time is short and form is thick is easy to salvage, and reaches more than 80% to COD clearances, to sanitary sewage
Turbidity removal rate up to more than 90%, total tp removal rate is up to more than 92%, on handling the pH value of water substantially without influence.Work as group
The weight ratio for dividing A and component B to be used in combination is 1:When 1, now COD clearances can reach 94.5%, and nitrogen removal rate can reach
96%, turbidity removal rate can reach 92.8%, and the weight ratio that component A and component B are used in combination is 1:1 matches somebody with somebody for the optimal of the present invention
Than the two compositely proportional is closer to 1:1, flocculating effect is better.
When the weight ratio that component A and component B is used in combination is definite value, in component A and component B during each component content difference
Also the flocculating effect of flocculant is influenced whether.Particularly diatomite, bentonite, montmorillonite powder, PAMC contain
Amount has a very big impact to flocculating effect.Embodiment 10-15 be same compound ratio under different percentage compositions component A and
Component B specific formula.Table 2 is that composite flocculation agent contrasts to the processing parameter of sewage in embodiment 10-15：
The embodiment 10-15 of table 2 contrasts to wastewater purifying efficiency
| Flocculant sample sequence number | Component A:Component B | COD clearances | Nitrogen removal rate | Turbidity removal rate |
| Embodiment 10 | 1:1 | 88.6 | 93.1 | 91.1 |
| Embodiment 11 | 1:1 | 89.7 | 93.7 | 91.8 |
| Embodiment 12 | 1:1 | 94.1 | 95.9 | 93.0 |
| Embodiment 13 | 1:1 | 90.5 | 94.1 | 91.6 |
| Embodiment 14 | 1:1 | 92.4 | 94.7 | 91.9 |
| Embodiment 15 | 1:1 | 92.8 | 95.0 | 92.3 |
As can be seen from Table 2, when composite flocculation agent component A of the present invention and component B ratio is 1:1 and composite flocculation agent make
When dosage is equal, when handling the sewage of same volume, the composite flocculation agent in embodiment 12 is 94.1% to COD clearances,
Turbidity removal rate to sanitary sewage is 93.0%, and total tp removal rate is 95.9%, and the flocculant formula in embodiment 12 is this
The preferred scheme of invention.
The flocculating effect of PAMC is relevant with its molecular weight, as molecular weight increases, the flocculation to sewage
Effect gradually increases, and this is due to that affine, absorption forms hydrogen bond between the amide groups of polyacrylamide and sewage particle, while high
Strand forms bridge section between adsorbed particle, thus, molecular weight be one of PAMC flocculating effect very
Important factor.But because the dissolubility of PAMC reduces with the increase of molecular weight, when analysis two is more than
After 8000000, flocculating effect increase eases up, more than 10,000,000 after increase unobvious.Therefore cationic polyacrylamide of the present invention is excellent
Select PAMC of the molecular weight between 8,000,000-1,000 ten thousand.
In the waste water of industrial wastewater particularly Electroplate Factory, containing substantial amounts of paint slag, only with the compound of component A and component B
Flocculant, then the problem of dosage is big be present, so the present invention proposes a kind of prioritization scheme, that is, increase a kind of flocculant aid component
C, component C are aluminium polychloride, and the weight ratio that component A, component B, component C are used in combination is 1-3:1-3:0.5-1.5.Flocculation
The effect of agent aid mainly improves the property that slag is painted in sewage, and can make to paint in water more thorough with the separation of water, allows in water
Paint slag be more conducive to follow-up lacquer mist coagulant component A and component B aggregation, to reduce paint content in water, save coating cloud
The dosage of flocculating agent AB agent, extend recirculated water service life, energy-conserving and environment-protective.Because aluminium polychloride can additionally introduce aluminium ion,
When the content of aluminium polychloride is excessive, the turbidity removal rate of sewage, the weight that component A, component B, component C are used in combination can be influenceed
It is 1-3 to measure ratio:1-3:During 0.5-1.5, can fully will paint slag waste water in pollutant removal, COD clearances also can reach
More than 80%, to painting the turbidity removal rate of slag sewage also up to more than 90%, total tp removal rate is also up to more than 92%, to processing
The pH value of water is substantially without influence.And the weight ratio that component A, component B, component C are used in combination in actually using is 1:1:When 0.5
For the present invention preferred plan, now composite flocculation agent to paint slag waste water COD clearances can reach 95.2%, nitrogen removal rate
96.7% is can reach, turbidity removal rate can reach 93.4%, and flocculating effect is more preferably.
In the preparation method of composite flocculation agent of the present invention, component A preparation method comprises the following steps：
Step 1：Under normal temperature and pressure, by the diatomite in the component A as described in claim any one of 1-5, bentonite,
Montmorillonite powder, sodium chloride, carclazyte, kaolin, plants essential oil, light green pigment, deionized water are added in reactor；
Step 2：Above-mentioned raw materials are stirred to 5-7 hours in a kettle, until forming jade-green transparent mixed liquor；
Component B preparation method comprises the following steps：
Step 1：Under normal temperature and pressure, by the plants essential oil in the component B as described in claim any one of 1-5, fruit green
Element and deionized water are added in reactor；
Step 2：PAMC in component B is added in aforesaid reaction vessel with 25g/s speed and stirs 7-
9 hours, until PAMC is completely dispersed formation greenish transparent mixed liquor in a kettle.
Two schemes when in use be present in composite flocculation agent of the present invention：The first is to add component A into sewage to carry out
Coagulating treatment, after stirring 5min, then component B is added into sewage and carries out coagulating treatment, will floated over after reacting 10min at sewage
The spongy bulk floccule on Li Chi upper stratas salvages the service life that can totally extend recirculated water, energy-conserving and environment-protective.
Second scheme can coordinate flocculation agent aid i.e. component C primarily directed to the wastewater treatment containing mixing paint
Use, now first component C is uniformly dispersed in sewage toward addition flocculant aid component C in waste water, stirring 5min, then again will
Component A, which is added into sewage, carries out coagulating treatment, after stirring 5min, finally adds into sewage component B and carries out coagulating treatment,
The use of recirculated water can totally be extended by salvaging the spongy bulk floccule for floating over treatment tank upper strata after reaction 10min
Life-span, energy-conserving and environment-protective.
Plant-derived essential oil is with the addition of in the component A and component B of composite flocculation agent of the present invention, in these plant-derived essential oils
Plant extracts and plants essential oil containing the very high functional compounds of reactivity and terpenoid, the very strong plant of activity
The chemical bond that thing essential oil molecule collides and destroyed in contaminant molecule with the odor molecules in sewage promotes its decomposition, concurrently
Raw similar compatibility Physical Absorption and dissolving；Alkaloid in plants essential oil is also sent out with acidic oxides such as the carbon in waste water, nitrogen, sulphur
Raw acid-base neutralization reaction；Active ingredient in plants essential oil can also polymerize rapidly with various harmful, odor molecules in sewage,
The chemical reactions such as substitution, displacement, absorption, decomposition.Plants essential oil is lemon, Peppermint essential oil, oil of Cymbopogon winterianus, sweet tea in the present invention
One or more in orange essential oil.Composite flocculation agent of the present invention not only has flocculation, the effect of sewage disposal, also has sterilization
Effect, product 1 of the present invention:50 dilutions, 20min is acted on, it is big to the killing logarithm value of Escherichia coli, staphylococcus aureus
In 5.00, the killing logarithm value to Candida albicans is more than 4.00.Product of the present invention is gone to ammonia, hydrogen sulfide and methyl mercaptan simultaneously
Except rate is respectively 92%, 88% and 75%, the very effective concentration for reducing sewage peculiar smell.
Advantage of the invention is that：
1st, the weight ratio that component A and component B is used in combination exists：1-3:Between 1-3, the flocculate formation time is short and form is thick
It is easy to salvage greatly, more than 80% is reached to COD clearances, to the turbidity removal rate of sanitary sewage up to more than 90%, total phosphorus is gone
Except rate is up to more than 92%, on handling the pH value of water substantially without influence.
2nd, flocculant adjuvant component C is added, improves the property that slag is painted in Electroplate Factory's sewage, and paint and water in water can be made
Separation is more thorough, allows the paint slag in water to be more conducive to follow-up lacquer mist coagulant component A and component B aggregation, to reduce in water
Paint content, save the use of lacquer mist coagulant AB agent.
3rd, plant-derived essential oil is added, can effectively kill microorganism and the odor molecules in waste water, further purification is dirty
Water, improve the water circulation cycle.
Disclosed above is only several specific embodiments of the present invention, but the present invention is not limited to this, any this area
Technical staff can think change should all fall into protection scope of the present invention.
Claims (7)
1. a kind of composite flocculation agent, it is characterised in that including component A and component B：
Wherein component A includes following component by weight percentage：
Diatomite：2-5%；
Bentonite：3-8%；
Montmorillonite powder：2-8%；
Sodium chloride：1-5%；
Carclazyte：1-10%；
Kaolin：3-10%；
Plants essential oil：0.1-0.5%；
Light green pigment；0-0.05%；
Deionized water：53.45-87.9%；
Wherein component B includes following component by weight percentage：
PAMC：1-5%；
Plants essential oil：0.1-0.5%；
Light green pigment：0-0.05%；
Deionized water：94.45-98.9%；
The weight ratio that the component A and component B are used in combination is：1-3:1-3；
It is aluminium polychloride also including component C, the component C, and the weight ratio that component A, component B, component C are used in combination is 1-
3:1-3:0.5-1.5。
2. a kind of composite flocculation agent according to claim 1, it is characterised in that what the component A and component B were used in combination
Specifically weight ratio is：1:1.
3. a kind of composite flocculation agent according to claim 1, it is characterised in that the specific composition of the component A is as follows：
Diatomite：3%；
Bentonite：5%；
Montmorillonite powder：5%；
Sodium chloride：2%；
Carclazyte：5%；
Kaolin：6%；
Plants essential oil：0.3%；
Light green pigment；0.03%；
Deionized water：73.67%；
Wherein component B includes following component by weight percentage：
PAMC：3%；
Plants essential oil：0.3%；
Light green pigment：0.03%；
Deionized water：96.67%；
The weight ratio that the component A and component B are used in combination is：1：1.
4. according to a kind of composite flocculation agent described in claim any one of 1-3, it is characterised in that the plants essential oil is lemon
One or more in essential oil, Peppermint essential oil, oil of Cymbopogon winterianus, sweet orange oil.
5. according to a kind of composite flocculation agent described in claim any one of 1-3, it is characterised in that the cation polypropylene acyl
Amine molecule amount is 8,000,000-1,000 ten thousand.
A kind of 6. preparation method of composite flocculation agent, it is characterised in that：Component A preparation method comprises the following steps：
Step 1：It is under normal temperature and pressure, the diatomite in the component A as described in claim any one of 1-3, bentonite, illiteracy is de-
Stone flour, sodium chloride, carclazyte, kaolin, plants essential oil, light green pigment, deionized water are added in the first reactor；
Step 2：The raw material of component A in step 1 is stirred into 5-7 hours in the first reactor, until being formed jade-green
Bright mixed liquor；
Component B preparation method comprises the following steps：
Step 1：Under normal temperature and pressure, by the plants essential oil in the component B as described in claim any one of 1-3, light green pigment and
Deionized water is added in the second reactor；
Step 2：PAMC in component B is small to stir 7-9 in 25g/s speed the second reactor of addition
When, until PAMC is thoroughly dispersed in formation greenish transparent mixed liquor in the second reactor.
A kind of 7. application of composite flocculation agent, it is characterised in that by the component A as described in claim any one of 1-5 add to
Carry out coagulating treatment in sewage, after stirring 5min, then the component B as described in claim any one of 1-5 added into sewage
Carry out coagulating treatment.
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| CN108862515B (en) * | 2018-06-29 | 2021-01-05 | 郑州工程技术学院 | Industrial wastewater purifying agent and preparation method thereof |
| CN113003641A (en) * | 2021-02-03 | 2021-06-22 | 广州沃而特环境技术有限公司 | Coating circulating water treatment agent |
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|---|---|---|---|---|
| DE2410394A1 (en) * | 1973-03-07 | 1974-09-12 | Andco Inc | PROCESS FOR DRAINING AN AQUATIC SLUDGE OF DISPERSED, FINELY CRUSHED SOLIDS |
| CN1350986A (en) * | 2000-10-26 | 2002-05-29 | 中国石油化工股份有限公司 | Process for treating recovered water in oil field |
| CN105858848A (en) * | 2016-03-28 | 2016-08-17 | 黄忠卫 | Clarificant and preparation method thereof |
| CN106219711A (en) * | 2016-08-08 | 2016-12-14 | 余志娟 | One way of life sewage treatment flocculating agent |
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2017
- 2017-03-09 CN CN201710137759.8A patent/CN107055726B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2410394A1 (en) * | 1973-03-07 | 1974-09-12 | Andco Inc | PROCESS FOR DRAINING AN AQUATIC SLUDGE OF DISPERSED, FINELY CRUSHED SOLIDS |
| CN1350986A (en) * | 2000-10-26 | 2002-05-29 | 中国石油化工股份有限公司 | Process for treating recovered water in oil field |
| CN105858848A (en) * | 2016-03-28 | 2016-08-17 | 黄忠卫 | Clarificant and preparation method thereof |
| CN106219711A (en) * | 2016-08-08 | 2016-12-14 | 余志娟 | One way of life sewage treatment flocculating agent |
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