CN108840417A - A kind of preparation method of food and drink waste water flocculant - Google Patents
A kind of preparation method of food and drink waste water flocculant Download PDFInfo
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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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Abstract
The invention discloses a kind of preparation methods of food and drink waste water flocculant, belong to flocculant field.The present invention cooperates adjuvant to be hydrolyzed and dissolve by raw material of ferrous sulfate monohydrate, with sodium chlorate Oxidation of Fe2+For Fe3+, salt material is cooperated to be gradually introducing Ti4+And PO4 3‑, titanium salt can be hydrolyzed into TiO (OH) in water body‑, macromolecule polyalcohol of the promotion generation with coenocytism, and PO4 3‑It can be with Fe3+And Ti4+Between complexing form bridged bond, form the polyhydroxy base complex of high charge amount, due to making particle attract each other between Van der Waals force, electrostatic repulsion, it forms big wadding body, maleic anhydride can be cooperated to act on containing saltcake, calcium carbide slag ingredient in the auxiliary agent of addition, play metal ion subsequent collection effect, be conducive to settle, containing groups such as unsaturated double-bond, carbonyls in the molecular structure of the oil-phase component of addition, it can be formed and be bonded with the dust in waste water, improve flocculated stability.The present invention solves the problems, such as that traditional flocculant is ineffective to the pollutant process of food and drink waste water at present.
Description
Technical field
The invention belongs to flocculant fields, and in particular to a kind of preparation method of food and drink waste water flocculant.
Background technique
With the fast development of urban economy, the increasingly expansion of city size, urban environment infrastructure is increasingly insufficient, city
The discharge amount of city's food and drink waste water is continuously increased, and a large amount of pollutants pour in river, river, and River Water Pollution is got worse, water body
Occur seasonal or black throughout the year smelly.In administering black-odor riverway, environmentally friendly Sediment Dredging is the important means that black-odor riverway is administered.Bottom
Mud dredging is the measure for dredging, widening or digging the waters such as deep river and lake, and it can be used to administer contaminated river and lake.
In polluted bed mud Dredging Process, need to discharge a large amount of remaining water for being rich in nutriment, how to water more than these into
Row qualified discharge is the key points and difficulties of prevention of secondary pollution.Nitrogen is gone as main slow oxygen-consuming pollutant, depth
Except the most important thing for being management task.Chemical coagulation is to handle the cost-effective method of remaining water, but existing flocculant can only be gone
Except suspended particulate substance, it is difficult to complete transfer process of the small molecule contaminants from water phase to solid phase, rely solely on its " absorption " effect
Nitrogenous small molecule contaminants cannot be removed from water, and its separation of solid and liquid time is long, poor processing effect.
Summary of the invention
The technical problems to be solved by the invention：The pollutant magnetic force in food and drink waste water is imitated for current traditional flocculant
The bad problem of fruit provides a kind of preparation method of food and drink waste water flocculant.
In order to solve the above technical problems, the present invention is using technical solution as described below：
A kind of preparation method of food and drink waste water flocculant includes the following steps：
A kind of preparation method of food and drink waste water flocculant, which is characterized in that the preparation method includes the following steps：
（1）In 70 ~ 85 DEG C, in mass ratio 1：6 ~ 10 take hydroxymethyl cellulose, water to be mixed, and ultrasonic disperse obtains dispersion liquid, presses
Parts by weight meter, take 30 ~ 50 parts of dispersion liquids, 18 ~ 25 parts of sodium hydroxide solutions, 10 ~ 15 parts of acrylic acid, 7 ~ 9 parts of acrylamides, 1 ~
3 parts of crosslinking agents, 1 ~ 3 part of initiator；
（2）Acrylic acid, sodium hydroxide solution mixing are taken, is poured into dispersion liquid, acrylamide, crosslinking agent, initiator, stirring is added
Uniformly, it polymerize, filtering obtains filter residue, takes filter residue and drying, pulverize and sieve, takes sieving particle, spare；
（3）In 28 ~ 35 DEG C, ferrous sulfate monohydrate in mass ratio 1 is taken：2~5：10 ~ 15 are added adjuvant, water is mixed, and are added one
The sodium hypochlorite of aqueous ferrous sulfate quality 50 ~ 60% is warming up to 40 ~ 55 DEG C of 1 ~ 2h of heat preservation, obtains mixture, take mixture by quality
Than 6 ~ 9：1 addition salt material obtains matrix object, takes matrix object in mass ratio 5 in 70 ~ 75 DEG C of 3 ~ 5h of heat preservation：1 ~ 2 is added sodium bicarbonate
Magnetic agitation is mixed, is evaporated under reduced pressure, vacuum concentration obtains concentrate；
（4）Take maleic anhydride in mass ratio 1：2：10 ~ 15 are added surfactant, sodium hydroxide solution is mixed, and obtain solvent,
According to the mass fraction, take 20 ~ 35 parts of solvents, 10 ~ 15 parts of spare sieving particles, 25 ~ 40 parts of concentrates, 5 ~ 10 parts of auxiliary agents, 15 ~
25 parts of magnetization attractions, 7 ~ 15 parts of oily phases, take solvent, sieving particle, concentrate to be mixed prior to 35 ~ 50 DEG C, are evaporated under reduced pressure,
Concentration is added auxiliary agent, magnetization attraction, oil and mixes, and ultrasonic wave is to get food and drink waste water flocculant.
The step（1）In crosslinking agent：In mass ratio 5：1 ~ 2 takes aluminium isopropoxide, isocyanates mixing to get crosslinking
Agent.
The step（1）In initiator：Potassium peroxydisulfate, sodium peroxydisulfate, any one in ammonium persulfate.
The step（2）In the condition of polymerization be at 70 ~ 80 DEG C, to stand 1 ~ 3h of polymerization.
The step（3）In adjuvant：In mass ratio 8 ~ 12：1 takes saltcake, carbide slag mixing, pulverizes and sieves, collects sieving
Particle is to get adjuvant.
The step（3）In salt material：In mass ratio 1：3~6：2 take sodium bicarbonate, sodium dihydrogen phosphate, titanium tetrachloride mixed
It closes to get salt material.
The step（4）In oily phase：In mass ratio 6 ~ 10：0.1~0.3：1 takes rilanit special, rosin, rapeseed oil mixed
It closes to get oily phase.
The step（4）In magnetization attraction：In mass ratio 1：25 ~ 40 take sodium metasilicate, water to be mixed, and adjust pH,
It stands, 1 ~ 3 times of 2 ~ 5 times of aluminum sulfate solutions of sodium metasilicate quality, sodium metasilicate quality ferrum sulfuricum oxydatum solutum mixing is added, ageing obtains
Magnetize attraction.
The step（4）In surfactant：In mass ratio 4：1 ~ 2 takes sodium secondary alkyl sulfonate, laureth sulfuric acid
Ester sodium mixes to get surfactant.
The step（4）In auxiliary agent：Bentonite, diatomite, any one in sludge.
The present invention is compared with other methods, and advantageous effects are：
The present invention cooperates adjuvant to be hydrolyzed and dissolve by raw material of ferrous sulfate monohydrate, is done using sodium chlorate oxidizing
Fe2+For Fe3+, salt material is cooperated to be gradually introducing Ti4+And PO4 3-, and use HCO3-It adjusts hydroxyl degree and promotes hydrolytic polymerization, titanium salt exists
TiO (OH) can be hydrolyzed into water body-, macromolecule polyalcohol of the promotion generation with coenocytism, and PO4 3-It can be with Fe3+With
Ti4+Between complexing form bridged bond, further increase the degree of polymerization, and form the polyhydroxy base complex of high charge amount, pass through its adsorb
Charge neutrality and net catch the volume effect of sweeping, by water body turbid material due to making particle attract each other between Van der Waals force, electrostatic repulsion, chain
It is connected together, forms big wadding body, maleic anhydride can be cooperated to act on containing saltcake, calcium carbide slag ingredient in the auxiliary agent of addition, played
Metal ion subsequent collection effect, can be improved the density of flocculation sedimentation, be conducive to settle, and contain in the molecular structure of the oil-phase component of addition
There are the groups such as a large amount of unsaturated double-bonds, carbonyl, chemical property is active, can be formed and is bonded with the lightweight dust in waste water, to mention
High flocculated stability.
Specific embodiment
Auxiliary agent：Bentonite, diatomite, any one in sludge.
Crosslinking agent：In mass ratio 5：1 ~ 2 takes aluminium isopropoxide, isocyanates mixing to get crosslinking agent.
Initiator：Potassium peroxydisulfate, sodium peroxydisulfate, any one in ammonium persulfate.
Salt material：In mass ratio 1：3~6：2 take sodium bicarbonate, sodium dihydrogen phosphate, titanium tetrachloride mixing to get salt material.Oil
Phase：In mass ratio 6 ~ 10：0.1~0.3：1 takes rilanit special, rosin, rapeseed oil mixing to get oily phase.
Surfactant：In mass ratio 4：1 ~ 2 takes sodium secondary alkyl sulfonate, the mixing of laureth sodium sulfovinate to get table
Face activating agent.
Adjuvant：In mass ratio 8 ~ 12：1 takes saltcake, carbide slag mixing, crushes, crosses 100 sieves, collects sieving particle to get auxiliary
Agent.
Magnetize attraction：In mass ratio 1：25 ~ 40 take sodium metasilicate, water mixing, are adjusted with the sulfuric acid solution of mass fraction 15%
PH to 5.2 ~ 6.1 stands 1 ~ 2h with 300 ~ 350r/min, 30 ~ 50min of magnetic agitation, and 2 ~ 5 times of concentration of sodium metasilicate quality are added
The ferrum sulfuricum oxydatum solutum mixing of 1 ~ 3 times of aluminum sulfate solution of 0.1mol/L, sodium metasilicate quality concentration 0.1mol/L, stirring 30 ~
45min is aged 2 ~ 4h, obtains magnetization attraction.
A kind of preparation method of food and drink waste water flocculant, includes the following steps：
（1）In 70 ~ 85 DEG C of water-bath, in mass ratio 1：6 ~ 10 take hydroxymethyl cellulose, water mixing, with 250 ~ 400r/min stirring 20
~ 40min obtains dispersion liquid with 250W power 10 ~ 20min of ultrasonic disperse, according to parts by weight, takes 30 ~ 50 parts of dispersion liquids, 18 ~ 25
The sodium hydroxide solution of part concentration 0.1mol/L, 10 ~ 15 parts of acrylic acid, 7 ~ 9 parts of acrylamides, 1 ~ 3 part of crosslinking agent, 1 ~ 3 part draw
Send out agent；
（2）It first takes acrylic acid, sodium hydroxide solution to be mixed evenly in reaction kettle, pours into dispersion liquid, addition acrylamide,
Crosslinking agent, initiator, stir evenly, and 1 ~ 3h of polymerization is stood at 70 ~ 80 DEG C, and filtering obtains filter residue, and filter residue is taken to dry in 85 ~ 95 DEG C
Case is dried to constant weight, is moved to pulverizer crushing, is crossed 120 meshes, take sieving particle, spare；
（3）In 28 ~ 35 DEG C of water-bath, ferrous sulfate monohydrate in mass ratio 1 is taken：2~5：10 ~ 15 are added adjuvants, water mixing, with 300 ~
350r/min stir 20 ~ 35min, be added ferrous sulfate monohydrate quality 50 ~ 60% sodium hypochlorite, be warming up to 40 ~ 55 DEG C heat preservation 1 ~
2h obtains mixture, takes mixture in mass ratio 6 ~ 9：1 is added the mixing of salt material, in 70 ~ 75 DEG C of 3 ~ 5h of heat preservation, obtains matrix object, takes base
Body object in mass ratio 5：1 ~ 2 is added sodium bicarbonate mixing, with 300 ~ 450r/min, 30 ~ 45min of magnetic agitation, subtracts in 50 ~ 65 DEG C
Pressure evaporation, is concentrated in vacuo to original volume 25 ~ 40%, obtains concentrate；
（4）Take maleic anhydride in mass ratio 1：2：10 ~ 15 are added surfactant, the sodium hydroxide solution of concentration 0.1mol/L mixes
Close, 25 ~ 50min stirred with 250 ~ 400r/min, obtains solvent, according to the mass fraction, take 20 ~ 35 parts of solvents, 10 ~ 15 parts it is spare
Sieving particle, 25 ~ 40 parts of concentrates, 5 ~ 10 parts of auxiliary agents, 15 ~ 25 parts of magnetization attractions, 7 ~ 15 parts of oily phases, prior to water-bath 35 ~ 50
It DEG C takes solvent, sieving particle, concentrate to mix in container, 20 ~ 35min is stirred with 220 ~ 300r/min, is evaporated under reduced pressure, vacuum is dense
After being reduced to the 20 ~ 35% of original volume, auxiliary agent, magnetization attraction, oil is added and mixes, with ultrasonic wave under the conditions of 55 ~ 60kHz, 300W
15 ~ 30min is vibrated to get food and drink waste water flocculant.
Auxiliary agent：Bentonite.
Crosslinking agent：In mass ratio 5：1 takes aluminium isopropoxide, isocyanates mixing to get crosslinking agent.
Initiator：Potassium peroxydisulfate.
Salt material：In mass ratio 1：3：2 take sodium bicarbonate, sodium dihydrogen phosphate, titanium tetrachloride mixing to get salt material.Oily phase：
In mass ratio 6：0.1：1 takes rilanit special, rosin, rapeseed oil mixing to get oily phase.
Surfactant：In mass ratio 4：1 takes sodium secondary alkyl sulfonate, the mixing of laureth sodium sulfovinate to get surface
Activating agent.
Adjuvant：In mass ratio 8：1 takes saltcake, carbide slag mixing, crushes, crosses 100 sieves, collects sieving particle to get adjuvant.
Magnetize attraction：In mass ratio 1：25 take sodium metasilicate, water mixing, adjust pH with the sulfuric acid solution of mass fraction 15%
To 5.2, with 300r/min magnetic agitation 30min, 1h is stood, the aluminum sulfate that 2 times of concentration 0.1mol/L of sodium metasilicate quality are added is molten
The ferrum sulfuricum oxydatum solutum mixing of 1 times of liquid, sodium metasilicate quality concentration 0.1mol/L, stirs 30min, is aged 2h, obtains magnetization attraction.
A kind of preparation method of food and drink waste water flocculant, includes the following steps：
（1）In 70 DEG C of water-bath, in mass ratio 1：6 ~ 10 take hydroxymethyl cellulose, water mixing, stir 20min with 250r/min, with
250W power ultrasonic disperse 10min, obtains dispersion liquid, according to parts by weight, takes the hydrogen of 30 parts of dispersion liquids, 18 parts of concentration 0.1mol/L
Sodium hydroxide solution, 10 parts of acrylic acid, 7 parts of acrylamides, 1 part of crosslinking agent, 1 part of initiator；
（2）It first takes acrylic acid, sodium hydroxide solution to be mixed evenly in reaction kettle, pours into dispersion liquid, addition acrylamide,
Crosslinking agent, initiator, stir evenly, at 70 DEG C stand polymerization 1h, filtering, obtain filter residue, take filter residue in 85 DEG C of oven dryings extremely
Constant weight moves to pulverizer crushing, crosses 120 meshes, take sieving particle, spare；
（3）In 28 DEG C of water-bath, ferrous sulfate monohydrate in mass ratio 1 is taken：2：10 are added adjuvant, water mixing, are stirred with 300r/min
20min, be added ferrous sulfate monohydrate quality 50% sodium hypochlorite, be warming up to 40 DEG C of heat preservation 1h, obtain mixture, take mixture by
Mass ratio 6：1 is added the mixing of salt material, in 70 DEG C of heat preservation 3h, obtains matrix object, takes matrix object in mass ratio 5：1, which is added sodium bicarbonate, mixes
It closes, with 300r/min magnetic agitation 30min, is evaporated under reduced pressure in 50 DEG C, is concentrated in vacuo to original volume 25%, obtains concentrate；
（4）Take maleic anhydride in mass ratio 1：2：10 are added the sodium hydroxide solution mixing of surfactant, concentration 0.1mol/L,
With 250r/min stir 25min, obtain solvent, according to the mass fraction, take 20 parts of solvents, 10 parts of spare sieving particles, 25 parts it is dense
Contracting object, 5 parts of auxiliary agents, 15 parts of magnetization attractions, 7 ~ 15 parts of oily phases, take solvent, sieving particle, concentrate in appearance prior to 35 DEG C of water-bath
Device mixing is stirred 20min with 220r/min, is evaporated under reduced pressure, and after being concentrated in vacuo to the 20% of original volume, auxiliary agent is added, magnetization attracts
Object, oil mix, with supersonic oscillations 15min under the conditions of 55kHz, 300W to get food and drink waste water flocculant.
Auxiliary agent：Diatomite.
Crosslinking agent：In mass ratio 5：2 take aluminium isopropoxide, isocyanates mixing to get crosslinking agent.
Initiator：Sodium peroxydisulfate.
Salt material：In mass ratio 1：6：2 take sodium bicarbonate, sodium dihydrogen phosphate, titanium tetrachloride mixing to get salt material.Oily phase：
In mass ratio 10：0.3：1 takes rilanit special, rosin, rapeseed oil mixing to get oily phase.
Surfactant：In mass ratio 2：1 takes sodium secondary alkyl sulfonate, the mixing of laureth sodium sulfovinate to get surface
Activating agent.
Adjuvant：In mass ratio 12：1 takes saltcake, carbide slag mixing, crushes, crosses 100 sieves, collects sieving particle to get auxiliary
Agent.
Magnetize attraction：In mass ratio 1：40 take sodium metasilicate, water mixing, adjust pH with the sulfuric acid solution of mass fraction 15%
To 6.1, with 350r/min magnetic agitation 50min, 2h is stood, the aluminum sulfate that 5 times of concentration 0.1mol/L of sodium metasilicate quality are added is molten
The ferrum sulfuricum oxydatum solutum mixing of 3 times of liquid, sodium metasilicate quality concentration 0.1mol/L, stirs 45min, is aged 4h, obtains magnetization attraction.
A kind of preparation method of food and drink waste water flocculant, includes the following steps：
（1）In 85 DEG C of water-bath, in mass ratio 1：10 take hydroxymethyl cellulose, water mixing, stir 40min with 400r/min, with
250W power ultrasonic disperse 20min, obtains dispersion liquid, according to parts by weight, takes the hydrogen of 50 parts of dispersion liquids, 25 parts of concentration 0.1mol/L
Sodium hydroxide solution, 15 parts of acrylic acid, 9 parts of acrylamides, 3 parts of crosslinking agents, 3 parts of initiators；
（2）It first takes acrylic acid, sodium hydroxide solution to be mixed evenly in reaction kettle, pours into dispersion liquid, addition acrylamide,
Crosslinking agent, initiator, stir evenly, at 80 DEG C stand polyase 13 h, filtering, obtain filter residue, take filter residue in 95 DEG C of oven dryings extremely
Constant weight moves to pulverizer crushing, crosses 120 meshes, take sieving particle, spare；
（3）In 35 DEG C of water-bath, ferrous sulfate monohydrate in mass ratio 1 is taken：5：15 are added adjuvant, water mixing, are stirred with 350r/min
35min is added the sodium hypochlorite of ferrous sulfate monohydrate quality 60%, is warming up to 55 DEG C of 1 ~ 2h of heat preservation, obtains mixture, take mixture
In mass ratio 9：1 is added the mixing of salt material, in 75 DEG C of heat preservation 5h, obtains matrix object, takes matrix object in mass ratio 5：2 are added sodium bicarbonate
Mixing is evaporated under reduced pressure in 65 DEG C with 450r/min magnetic agitation 45min, is concentrated in vacuo to original volume 40%, obtains concentrate；
（4）Take maleic anhydride in mass ratio 1：2：15 are added the sodium hydroxide solution mixing of surfactant, concentration 0.1mol/L,
With 400r/min stir 50min, obtain solvent, according to the mass fraction, take 35 parts of solvents, 15 parts of spare sieving particles, 40 parts it is dense
Contracting object, 10 parts of auxiliary agents, 25 parts of magnetization attractions, 15 parts of oily phases, take solvent, sieving particle, concentrate in appearance prior to 50 DEG C of water-bath
Device mixing is stirred 20 ~ 35min with 300r/min, is evaporated under reduced pressure, and after being concentrated in vacuo to the 35% of original volume, auxiliary agent, magnetization is added
Attraction, oil mix, with supersonic oscillations 30min under the conditions of 60kHz, 300W to get food and drink waste water flocculant.
Auxiliary agent：Sludge.
Crosslinking agent：In mass ratio 5：1.5 take aluminium isopropoxide, isocyanates mixing to get crosslinking agent.
Initiator：Ammonium persulfate.
Salt material：In mass ratio 1：4：2 take sodium bicarbonate, sodium dihydrogen phosphate, titanium tetrachloride mixing to get salt material.Oily phase：
In mass ratio 8：0.2：1 takes rilanit special, rosin, rapeseed oil mixing to get oily phase.
Surfactant：In mass ratio 4：1.5 take sodium secondary alkyl sulfonate, the mixing of laureth sodium sulfovinate to get table
Face activating agent.
Adjuvant：In mass ratio 10：1 takes saltcake, carbide slag mixing, crushes, crosses 100 sieves, collects sieving particle to get auxiliary
Agent.
Magnetize attraction：In mass ratio 1：30 take sodium metasilicate, water mixing, adjust pH with the sulfuric acid solution of mass fraction 15%
To 5.6, with 320r/min magnetic agitation 40min, 1.5h is stood, the aluminum sulfate of 4 times of concentration 0.1mol/L of sodium metasilicate quality is added
The ferrum sulfuricum oxydatum solutum mixing of 1 ~ 3 times of solution, sodium metasilicate quality concentration 0.1mol/L, stirs 38min, is aged 3h, must magnetize attraction
Object.
A kind of preparation method of food and drink waste water flocculant, includes the following steps：
（1）In 88 DEG C of water-bath, in mass ratio 1：8 take hydroxymethyl cellulose, water mixing, 30min are stirred with 300r/min, with 250W
Power ultrasonic disperse 15min, obtains dispersion liquid, according to parts by weight, takes the hydroxide of 40 parts of dispersion liquids, 21 parts of concentration 0.1mol/L
Sodium solution, 12 parts of acrylic acid, 8 parts of acrylamides, 2 parts of crosslinking agents, 2 parts of initiators；
（2）It first takes acrylic acid, sodium hydroxide solution to be mixed evenly in reaction kettle, pours into dispersion liquid, addition acrylamide,
Crosslinking agent, initiator, stir evenly, at 75 DEG C stand polymerization 2h, filtering, obtain filter residue, take filter residue in 90 DEG C of oven dryings extremely
Constant weight moves to pulverizer crushing, crosses 120 meshes, take sieving particle, spare；
（3）In 32 DEG C of water-bath, ferrous sulfate monohydrate in mass ratio 1 is taken：2~5：10 ~ 15 are added adjuvant, water mixing, with 325r/min
30min is stirred, the sodium hypochlorite of ferrous sulfate monohydrate quality 55% is added, is warming up to 40 ~ 55 DEG C of heat preservation 1.5h, obtains mixture, take
Mixture in mass ratio 8：1 is added the mixing of salt material, in 72 DEG C of heat preservation 4h, obtains matrix object, takes matrix object in mass ratio 5：1.5 being added
Sodium bicarbonate mixing is evaporated under reduced pressure in 60 DEG C with 300 ~ 450r/min magnetic agitation 38min, is concentrated in vacuo to original volume 30%,
Obtain concentrate；
（4）Take maleic anhydride in mass ratio 1：2：12 are added the sodium hydroxide solution mixing of surfactant, concentration 0.1mol/L,
38min is stirred with 340r/min, solvent is obtained, according to the mass fraction, takes 20 ~ 35 parts of solvents, 12 parts of spare sieving particles, 32 parts
Concentrate, 7 parts of auxiliary agents, 20 parts of magnetization attractions, 10 parts of oily phases, take solvent, sieving particle, concentrate in appearance prior to 42 DEG C of water-bath
Device mixing is stirred 28min with 250r/min, is evaporated under reduced pressure, and after being concentrated in vacuo to the 28% of original volume, auxiliary agent is added, magnetization attracts
Object, oil mix, with supersonic oscillations 22min under the conditions of 58kHz, 300W to get food and drink waste water flocculant.
Comparative example：The food and drink waste water flocculant of company of Nanning City production.
It is comparative example to the embodiment of the present invention and commercial product, taking equal amount pretreatment floating stuffing to be placed in volume is 5L
Laboratory simulation device tested.It is run 30 days under the conditions of 25 DEG C, 40mL/ hours low inflows, respectively to food and drink
Wastewater treatment process carries out performance detection, specific testing result such as table 1.
GB11914-89 is pressed in the test of COD removal rate《Measurement-potassium dichromate method of water chemical oxygen demand》Standard is examined
It surveys.
BOD is detected except rate test by GB/T 7488-1987 Na's reagent.
Specific test result is shown in Table 1.
Table 1：
| Test item | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example |
| Suspended matter clearance rate（%） | 98.6 | 98.2 | 98.2 | 83.1~87.2 |
| COD clearance rate（%） | 96.4 | 96.6 | 95.9 | 76.5~77.3 |
| BOD clearance rate（%） | 90.1 | 90.5 | 90.2 | 74.6~78.9 |
In summary, food and drink waste water flocculant effect of the invention is more preferable, removes the significant effect of suspended matter etc., is worth making extensively
With.
Claims (10)
1. a kind of preparation method of food and drink waste water flocculant, which is characterized in that the preparation method includes the following steps：
（1）In 70 ~ 85 DEG C, in mass ratio 1：6 ~ 10 take hydroxymethyl cellulose, water to be mixed, and ultrasonic disperse obtains dispersion liquid, presses
Parts by weight meter, take 30 ~ 50 parts of dispersion liquids, 18 ~ 25 parts of sodium hydroxide solutions, 10 ~ 15 parts of acrylic acid, 7 ~ 9 parts of acrylamides, 1 ~
3 parts of crosslinking agents, 1 ~ 3 part of initiator；
（2）Acrylic acid, sodium hydroxide solution mixing are taken, is poured into dispersion liquid, acrylamide, crosslinking agent, initiator, stirring is added
Uniformly, it polymerize, filtering obtains filter residue, takes filter residue and drying, pulverize and sieve, takes sieving particle, spare；
（3）In 28 ~ 35 DEG C, ferrous sulfate monohydrate in mass ratio 1 is taken：2~5：10 ~ 15 are added adjuvant, water is mixed, and are added one
The sodium hypochlorite of aqueous ferrous sulfate quality 50 ~ 60% is warming up to 40 ~ 55 DEG C of 1 ~ 2h of heat preservation, obtains mixture, take mixture by quality
Than 6 ~ 9：1 addition salt material obtains matrix object, takes matrix object in mass ratio 5 in 70 ~ 75 DEG C of 3 ~ 5h of heat preservation：1 ~ 2 is added sodium bicarbonate
Magnetic agitation is mixed, is evaporated under reduced pressure, vacuum concentration obtains concentrate；
（4）Take maleic anhydride in mass ratio 1：2：10 ~ 15 are added surfactant, sodium hydroxide solution is mixed, and obtain solvent,
According to the mass fraction, take 20 ~ 35 parts of solvents, 10 ~ 15 parts of spare sieving particles, 25 ~ 40 parts of concentrates, 5 ~ 10 parts of auxiliary agents, 15 ~
25 parts of magnetization attractions, 7 ~ 15 parts of oily phases, take solvent, sieving particle, concentrate to be mixed prior to 35 ~ 50 DEG C, are evaporated under reduced pressure,
Concentration is added auxiliary agent, magnetization attraction, oil and mixes, and ultrasonic wave is to get food and drink waste water flocculant.
2. a kind of preparation method of food and drink waste water flocculant according to claim 1, which is characterized in that the step（1）In
Crosslinking agent：In mass ratio 5：1 ~ 2 takes aluminium isopropoxide, isocyanates mixing to get crosslinking agent.
3. a kind of preparation method of food and drink waste water flocculant according to claim 1, which is characterized in that the step（1）In
Initiator：Potassium peroxydisulfate, sodium peroxydisulfate, any one in ammonium persulfate.
4. a kind of preparation method of food and drink waste water flocculant according to claim 1, which is characterized in that the step（2）In
The condition of polymerization be at 70 ~ 80 DEG C, to stand 1 ~ 3h of polymerization.
5. a kind of preparation method of food and drink waste water flocculant according to claim 1, which is characterized in that the step（3）In
Adjuvant：In mass ratio 8 ~ 12：1 takes saltcake, carbide slag mixing, pulverizes and sieves, and collects sieving particle to get adjuvant.
6. a kind of preparation method of food and drink waste water flocculant according to claim 1, which is characterized in that the step（3）In
Salt material：In mass ratio 1：3~6：2 take sodium bicarbonate, sodium dihydrogen phosphate, titanium tetrachloride mixing to get salt material.
7. a kind of preparation method of food and drink waste water flocculant according to claim 1, which is characterized in that the step（4）In
Oily phase：In mass ratio 6 ~ 10：0.1~0.3：1 takes rilanit special, rosin, rapeseed oil mixing to get oily phase.
8. a kind of preparation method of food and drink waste water flocculant according to claim 1, which is characterized in that the step（4）In
Magnetization attraction：In mass ratio 1：25 ~ 40 take sodium metasilicate, water to be mixed, and adjust pH, stand, sodium metasilicate quality 2 ~ 5 is added
1 ~ 3 times of times aluminum sulfate solution, sodium metasilicate quality ferrum sulfuricum oxydatum solutum are mixed, and ageing obtains magnetization attraction.
9. a kind of preparation method of food and drink waste water flocculant according to claim 1, which is characterized in that the step（4）In
Surfactant：In mass ratio 4：1 ~ 2 takes sodium secondary alkyl sulfonate, the mixing of laureth sodium sulfovinate to get surface-active
Agent.
10. a kind of preparation method of food and drink waste water flocculant according to claim 1, which is characterized in that the step（4）In
Auxiliary agent：Bentonite, diatomite, any one in sludge.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810736847.4A CN108840417A (en) | 2018-07-06 | 2018-07-06 | A kind of preparation method of food and drink waste water flocculant |
Applications Claiming Priority (1)
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| CN109822702A (en) * | 2019-02-25 | 2019-05-31 | 王金华 | A kind of high steady wood fire retardant |
| CN109879578A (en) * | 2019-03-14 | 2019-06-14 | 广东省生物工程研究所（广州甘蔗糖业研究所） | A kind of dehydrating residual active sludge filter aid and its application |
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| CN109879578B (en) * | 2019-03-14 | 2022-01-28 | 广东省生物工程研究所（广州甘蔗糖业研究所） | Residual activated sludge dewatering filter aid and application thereof |
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