CN108975577A - A kind of Paint wastewater treatment method - Google Patents
A kind of Paint wastewater treatment method Download PDFInfo
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- CN108975577A CN108975577A CN201810945123.0A CN201810945123A CN108975577A CN 108975577 A CN108975577 A CN 108975577A CN 201810945123 A CN201810945123 A CN 201810945123A CN 108975577 A CN108975577 A CN 108975577A
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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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- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/14—Paint wastes
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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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Abstract
The invention discloses a kind of Paint wastewater treatment methods, Paint wastewater treatment method specifically comprises the following steps: to collect paint waste water in cesspool, A sewage-treating agent is added in paint waste water, then B sewage-treating agent is added in paint waste water, completely to sewage-treating agent dispersion, after in paint sewage with a small amount of precipitating, C sewage-treating agent is added, there are a large amount of precipitatings to generate after mixing evenly, sedimentation filtration removes precipitated impurities.A kind of Paint wastewater treatment method of the present invention can remove the organic polymer and heavy metal in paint sewage, while can will paint small organic molecule chemical recycling of carbon dioxide and water in sewage.
Description
Technical field
The present invention relates to a kind of Paint wastewater treatment methods.
Background technique
The production and application of paint have long history, have just begun to use paint early in thousands of China Nian Qian, at that time
The paint used is that the paint solution taken from lacquer tree is processed into lacquer.The modern times main component of paint includes following five big portions
Point: (1) oil plant: being one of main film forming substance including drying oil and semi-drying oil；(2) resin: including natural resin and artificial
Resin, and a part of main film forming substance；(3) pigment: including coloring pigment, extender pigment and rust resisting pigment, specific product
Kind is quite various, is subsidiary film forming matter；(4) solvent or diluent: including solvent and diluent, for dissolving above-mentioned substance and adjusting thick
Degree is auxiliary film forming matter；(5) auxiliary material: including drier, curing agent, plasticizer, anti-blushing agent, auxiliary film forming matter is also belonged to.
Modern oil paint coating operation mostly uses spraying technology, spraying process due product effect in order to obtain, usually
It will cross and spray, the paint for having 20%-60% can not be attached on product, be scattered in spray booth.In order to remain live normal
Working environment and protection staff health, frequently with wet type coating cloud removal system i.e. utilize water to remove extra oil
Paint.The component of paint determines the ingredient of paint waste water.Organism kinds in waste water are more, complicated component, COD content
Height, and there is certain toxicity.
Containing a large amount of paint slags in painting wastewater, paint slag is formed by material mixings such as oil plant, resin, solvent, auxiliary agents.To make
Water quality has the characteristics that stickness, peculiar smell, color weight.Traditional Paint wastewater treatment method includes following several: 1, at using biochemistry
Reason the chemical agent of doses is added into waste water, by the conditioning tank-grid that catchments-neutralization coagulation-air bearing-hydrolysis acidification
The series of process such as adjusting-oxidation ditch-secondary settling tank-biological aerated filter-water outlet are handled, this processing method occupied area
Big with cost of investment, operation and management cost are high, and to general medium-sized and small enterprises, in early investment, there are problems.2, using filtering
Device, settling tank, filters pressing mode handle paint waste water, and high viscosity substance and waste water are easy obturating element in this processing method, more
It changes element and operating cost is high, reliability is low.3, using traditional Paint flocculant, paint paint slag is carried out except viscous, suspension
After carry out artificial water surface salvaging or salvaged using Slag Scraping Device, this processing method bits processing is not thorough, for pond bottom
Portion can not thoroughly remove, and water-screen cabinet circulating pump is be easy to cause to block and influence spray effect, and paint mist is easily excluded from exhaust outlet
Cause secondary pollution, environmental protection is difficult up to standard, and operating cost is higher.In today that environmental pollution attracts attention, traditional spray painting is useless
Method for treating water is too simple, and many harmful substances cannot remove, and the discharge standard of industrial wastewater has been not achieved.Painting wastewater it is true
Scientific and effective processing method should be in water addition chemistry in water treatment drug.It only in this way could be by having in paint waste water
Evil object, pollutant are totally separated out, and see-through, pH value, impurity content, stink, COD of water quality etc. can be made to reach state
The industrial wastewater discharge standard that family requires.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of Paint wastewater treatment method, at the paint waste water
Reason method specifically comprises the following steps: to collect paint waste water in cesspool, and A sewage-treating agent is added to paint waste water
In, then B sewage-treating agent is added in paint waste water, completely to sewage-treating agent dispersion, is painted in sewage with a small amount of
After precipitating, C sewage-treating agent is added, there are a large amount of precipitatings to generate after mixing evenly, sedimentation filtration removes precipitated impurities.
As a kind of perferred technical scheme, the composition and parts by weight of the A sewage-treating agent: 2-5 parts of choline chloride, first
0.1-2 parts of shell element, 0.1-1 parts of nano-metal-oxide, 30-45 parts of cationic polyacrylamide, 40-50 parts of water.
As a kind of perferred technical scheme, the composition and parts by weight of the B sewage-treating agent: four water-calcium nitrate 30-40
Part, nine 1-5 parts of water aluminum nitrates, 0.1-0.5 parts of nonionic surfactant, 10-20 parts of aluminium containing polymer, 30-50 parts of water.
As a kind of perferred technical scheme, the composition and parts by weight of the C sewage-treating agent: naphthalene sulphonate formaldehyde condensation
5-10 parts of object, 0.02-0.04 parts of coconut oil oxalic acid amide, 0.2-0.4 parts of inorganic salts, 0.5-2.0 parts of inorganic base, moisture 60-
90 parts.
As a kind of perferred technical scheme, the nonionic surfactant is selected from alkyl phenol polyoxyethylene ether, high-carbon
Fatty alcohol polyoxyethylene ether, polyoxyethylene carboxylate, fatty acid methyl ester ethoxylate, the ethyleneoxide addition of polypropylene glycol
One or more of object.
As a kind of perferred technical scheme, the inorganic salts are selected from sodium sulphate, one or both of potassium sulfate.
As a kind of perferred technical scheme, the inorganic base sodium hydroxide, calcium hydroxide, one of potassium hydroxide or
It is several.
As a kind of perferred technical scheme, the aluminium containing polymer is selected from polyaluminium sulfate, and one in aluminium polychloride
Kind or two kinds.
As a kind of perferred technical scheme, the chitin is Chitosan, wherein chitin deacetylation
For 40-50%.
As a kind of perferred technical scheme, the nano-metal-oxide be selected from titanium oxide, one of iron oxide or
Two kinds.
A kind of the advantages of Paint wastewater treatment method of the invention, the present invention use three kinds of different sewage-treating agent A, B, C
With the use of the organic matter macromolecular and heavy metal reached in removing paint sewage, while it can will paint small point in sewage
Sub- organic matter chemical recycling of carbon dioxide and water.Aluminium containing polymer, nine water aluminum nitrates, which are added in paint sewage, can produce gel, gel
Suspension little particle in sewage can be wrapped in the inside, to reach except the suspension little particle in decontaminated water.
Choline chloride can effectively remove the heavy metal in paint sewage in the present invention.
Deacetylated cationic polyacrylamide in the present invention, naphthalenesulfonate formaldehyde condensation compound, coconut oil oxalic acid amide etc.
Hydrophilic one end of surfactant can be adhered on gel, and oleophylic one end can be by hydrogen bond, and intermolecular force and paint are dirty
Macromolecule in water organically combines, and macromolecule organic is made to settle down from paint sewage.
Chitin in the present invention, nano-metal-oxide and chitin after nano-metal-oxide is added in paint sewage
Generation anion is returned under light illumination, and anion quickly can convert carbon dioxide and water for small organic molecule.Of the invention
Paint wastewater treatment method removes the organic polymer and heavy metal in paint sewage, while small point for can painting in sewage
Sub- organic matter chemical recycling of carbon dioxide and water.
Specific embodiment
Unless otherwise defined, all technologies used herein and scientific term have and the common skill of fields of the present invention
The normally understood identical meaning of art personnel.When there is a conflict, the definition in this specification shall prevail.
The present invention provides a kind of Paint wastewater treatment method, the Paint wastewater treatment method specifically includes following step
It is rapid: paint waste water to be collected in cesspool, A sewage-treating agent is added in paint waste water, and then B sewage-treating agent is added
Into paint waste water, completely to sewage-treating agent dispersion, after painting in sewage with a small amount of precipitating, C sewage-treating agent is added, stirs
There are a large amount of precipitatings to generate after mixing uniformly, sedimentation filtration removes precipitated impurities.
Embodiment as one preferred, the composition and parts by weight of the A sewage-treating agent: 2-5 parts of choline chloride, first
0.1-2 parts of shell element, 0.1-1 parts of nano-metal-oxide, 30-45 parts of cationic polyacrylamide, 40-50 parts of water.
Embodiment as one preferred, the composition and parts by weight of the B sewage-treating agent: four water-calcium nitrate 30-40
Part, nine 1-5 parts of water aluminum nitrates, 0.1-0.5 parts of nonionic surfactant, 10-20 parts of aluminium containing polymer, 30-50 parts of water.
Embodiment as one preferred, the composition and parts by weight of the C sewage-treating agent: naphthalene sulphonate formaldehyde condensation
5-10 parts of object, 0.02-0.04 parts of coconut oil oxalic acid amide, 0.2-0.4 parts of inorganic salts, 0.5-2.0 parts of inorganic base, moisture 60-
90 parts.
Nonionic surfactant
Nonionic surfactant refers to unionization in aqueous solution, and hydrophilic group is mainly by with a certain number of oxygen-containing groups
Group's (generally ether and hydroxyl) is constituted.Exactly this point determines nonionic surfactant in some aspects than ion table
Face activating agent is more superior；Because not being in the solution ionic condition, stability is high, does not deposit vulnerable to strong electrolyte inorganic salts
Influence, also the not influence vulnerable to PH value, good with other types surfactant compatibility.
Non-ionic polyacrylamide is water-soluble high molecular polymer or polyelectrolyte.Due to containing one in its strand
The polar group of fixed number amount, it can be made to build bridge between particle or be made by charging neutrality by the solids that suspend in absorption water
Particle coacervation forms big flocculate.So it can accelerate the sedimentation of particle in suspension, have obviously accelerate solution it is clear
Clearly, promote filtering and other effects.It is mainly used for the flocculating setting of various industrial wastewaters, precipitates clarifying treatment.As papermaking and paper pulp are useless
Water wastewater treatment, the wastewater treatment of ore dressing and metal smelt process, steel plant and the wastewater treatment of processing of stone factory etc..As one
Kind preferred embodiment, the nonionic surfactant are selected from alkyl phenol polyoxyethylene ether, high-carbon fatty alcohol polyoxyethylene
Ether, polyoxyethylene carboxylate, fatty acid methyl ester ethoxylate, one of ethylene oxide adduct of polypropylene glycol or several
Kind.
Embodiment as one preferred, the inorganic salts are selected from sodium sulphate, one or both of potassium sulfate.
Embodiment as one preferred, the inorganic base sodium hydroxide, calcium hydroxide, one of potassium hydroxide or
It is several.
Aluminium containing polymer is composite polymer polymer, and molecular structure is huge, and adsorption capacity is strong, and purifying water effect is better than institute
There is traditional inorganic water purification agent.The floccule body formed after investment raw water is big, and settling velocity is fast, and activity is high, and filterability is good.And it is right
Various raw waters it is adaptable, minimum (pH value 4-11) is influenced on the pH value of water.No matter raw water turbidity height, Wastewater Pollutant are dense
Size is spent, clean-up effect is significant.Dosage is few: small to equipment, corrosion of pipe, easy to operate, dosage is small, purifies cost
It is low.
Embodiment as one preferred, the aluminium containing polymer are selected from polyaluminium sulfate, and one in aluminium polychloride
Kind or two kinds.
Chitin
Chitin (chitin) is a kind of multi-polysaccharide natural macromolecule compound through biosynthesis in animal and plant body, and yield is only secondary
In cellulose, nearly 10,000,000,000 tons of the chitin of the annual biosynthesis of nature, be a kind of natural resources of very abundant.Crust
Element is made of tetra- kinds of elements of C, H, O, N, and chemical formula is (C8H13NO5)n.Chitin is by N- acetyl -2- amino -2- deoxidation -
The polysaccharide that D-Glucose is formed by connecting in the form of β-Isosorbide-5-Nitrae glycosidic bond is known as (Isosorbide-5-Nitrae) -2- acetyl ammonia by systematic nomenclature chitin
Base -2- deoxidation-callose.Chitin and its derivative not only have good biocompatibility, low toxicity and biodegrade
Property, also there is many Biomedical functions and drug effect.
The cell wall constituent of chitin and bacterium is similar or identical, and amino can be with bacteria cell wall in chitosan
In conjunction with destruction cell wall.Chitin is Chitosan, and wherein chitin deacetylation is 40-50%.As a kind of excellent
The embodiment of choosing, the chitin are Chitosan, and wherein chitin deacetylation is 40-50%.
Nanoparticle
Nano-oxide refers to that partial size reaches nanoscale oxide, such as nano-titanium dioxide, nano silica, nanometer
Zinc oxide, nano aluminium oxide, nano zircite, nano-cerium oxide, nano iron oxide etc..Nanoparticle photocatalyst has
Many advantages, be that partial size is small first, it is more that particle reaches number of surfaces, and photocatalysis efficiency is high；Followed by nanoparticle is dispersed in
There is the transparency in medium, be easy the electric charge transfer and nanoparticle photocatalysis come between observing interface with optical instrument and method
Agent is influenced by redox.Utilize nano-TiO2Photocatalysis property come handle waste water and improve environment be a kind of having for row
The method of effect, TiO2Photochemical catalyst, which can be decomposed effectively in aluminium containing polymer addition paint sewage, can produce gel, and gel can
The suspension little particle in sewage is wrapped in the inside, to reach except the suspension little particle in decontaminated water.Indoor and outdoor it is organic
Pollutant, nitrogen oxides, sulfide and all kinds of foul smell etc. in oxidation removal atmosphere.
Embodiment as one preferred, the nano-metal-oxide be selected from titanium oxide, one of iron oxide or
Two kinds.
Cationic polyacrylamide
Cationic polyacrylamide (CPAM) is chain macromolecule compound, due to it have a variety of active groups, can with permitted
More substances are affine, absorption forms hydrogen bond.Mainly flocculate negatively charged colloid, has the function such as turbidity removal, decoloration, absorption, bonding
Can, it is suitable for the industries organic gels such as dyeing, papermaking, food, building, metallurgy, ore dressing, coal dust, oil field, aquatic products processing and fermentation
The higher wastewater treatment of body content, the dehydration especially suitable for municipal sewage, municipal sludge, paper mill sludge and other industrial sludges
Processing.
The present invention is by the way that by three kinds of different sewage-treating agent A, B, C, which are used cooperatively to have reached, removes having in paint sewage
Machine object macromolecular and heavy metal, while can will paint small organic molecule chemical recycling of carbon dioxide and water in sewage.It is poly- containing aluminium
Object is closed, nine water aluminum nitrates, which are added in paint sewage, can produce gel, and the suspension little particle in sewage can be wrapped in by gel
The inside, to reach except the suspension little particle in decontaminated water.
Choline chloride can effectively remove the heavy metal in paint sewage in the present invention.
Deacetylated cationic polyacrylamide in the present invention, naphthalenesulfonate formaldehyde condensation compound, coconut oil oxalic acid amide etc.
Hydrophilic one end of surfactant can be adhered on gel, and oleophylic one end can be by hydrogen bond, and intermolecular force and paint are dirty
Macromolecule in water organically combines, and macromolecule organic is made to settle down from paint sewage.
Chitin in the present invention, nano-metal-oxide and chitin after nano-metal-oxide is added in paint sewage
Generation anion is returned under light illumination, and anion quickly can convert carbon dioxide and water for small organic molecule.Of the invention
Paint wastewater treatment method removes the organic polymer and heavy metal in paint sewage, while small point for can painting in sewage
Sub- organic matter chemical recycling of carbon dioxide and water.
After the present invention is using national standard " sewage is discharged into town sewer water standard " (GB/T 31962-2015) evaluation processing
Paint sewage quality.Wherein the present invention is mainly by pH value, total dissolved solid, petroleum total content, content of beary metal
And the evaluation of measuring water quality of COD.
Embodiment 1
The Paint wastewater treatment method specifically comprises the following steps: the A sewage treatment by paint waste water collection in cesspool
(2 parts of choline chloride, 0.1 part of chitin, 0.1 part of nano-metal-oxide, 40 parts of cationic polyacrylamide, 40 parts of water) of agent add
Enter into paint waste water, then by B sewage-treating agent (30 parts of four water-calcium nitrate, nine 1 part of water aluminum nitrates, non-ionic surface active
0.1 part of agent, 10 parts of aluminium containing polymer, 30 parts of water) it is added in paint waste water, completely to sewage-treating agent dispersion, paint sewage
In with a small amount of precipitating after, be added C sewage-treating agent (5 parts of naphthalenesulfonate formaldehyde condensation compound, coconut oil oxalic acid amide 0.02
Part, 0.2 part of inorganic salts, 0.5 part of inorganic base, 60 parts of moisture), there are a large amount of precipitatings to generate after mixing evenly, sedimentation filtration removes heavy
Shallow lake impurity.
The pH value 7.5-7.8 of water after purification, total dissolved solid 500mg/L, petroleum total content 1mg/L, content of beary metal
Less than 0.1mg/L, COD is less than or equal to 20mg/L(COD).
Embodiment 2
The Paint wastewater treatment method specifically comprises the following steps: the A sewage treatment by paint waste water collection in cesspool
Agent (2 parts of choline chloride, 0.1 part of chitin, 0.1 part of nano-metal-oxide, 40 parts of cationic polyacrylamide, 40 parts of water), B
Sewage-treating agent (30 parts of four water-calcium nitrate, nine 1 part of water aluminum nitrates, 0.1 part of nonionic surfactant, 10 parts of aluminium containing polymer,
30 parts of water), C sewage-treating agent (5 parts of naphthalenesulfonate formaldehyde condensation compound, 0.02 part of coconut oil oxalic acid amide, 0.2 part of inorganic salts,
0.5 part of inorganic base, 60 parts of moisture), there is precipitating to generate after mixing evenly, sedimentation filtration removes precipitated impurities.
The pH value 7.5-7.8 of water after purification, total dissolved solid 1500mg/L, petroleum total content 5mg/L, content of beary metal
Less than 0.5mg/L, COD is less than or equal to 50mg/L(COD).
Embodiment 3
The Paint wastewater treatment method specifically comprises the following steps: the A sewage treatment by paint waste water collection in cesspool
Agent (2 parts of choline chloride, 0.1 part of chitin, 0.1 part of nano-metal-oxide, 40 parts of cationic polyacrylamide, 40 parts of water),
Then by C sewage-treating agent (5 parts of naphthalenesulfonate formaldehyde condensation compound, 0.02 part of coconut oil oxalic acid amide, 0.2 part of inorganic salts, nothing
0.5 part of machine alkali, 60 parts of moisture), be subsequently added into B sewage-treating agent (30 parts of four water-calcium nitrate, nine 1 part of water aluminum nitrates, nonionic
0.1 part of surfactant, 10 parts of aluminium containing polymer, 30 parts of water), there is precipitating to generate after mixing evenly, sedimentation filtration removes precipitating
Impurity.
The pH value 7.5-7.8 of water after purification, total dissolved solid 1000mg/L, petroleum total content 8mg/L, content of beary metal
Less than 0.5mg/L, COD is less than or equal to 30mg/L(COD).
Embodiment 4
The Paint wastewater treatment method specifically comprises the following steps: the C sewage treatment by paint waste water collection in cesspool
Agent (5 parts of naphthalenesulfonate formaldehyde condensation compound, 0.02 part of coconut oil oxalic acid amide, 0.2 part of inorganic salts, 0.5 part of inorganic base, moisture
60 parts), then by A sewage-treating agent, (2 parts of choline chloride, 0.1 part of chitin, 0.1 part of nano-metal-oxide, cation is poly-
40 parts of acrylamide, 40 parts of water), be subsequently added into B sewage-treating agent (30 parts of four water-calcium nitrate, nine 1 part of water aluminum nitrates, nonionic
0.1 part of surfactant, 10 parts of aluminium containing polymer, 30 parts of water), there is precipitating to generate after mixing evenly, sedimentation filtration removes precipitating
Impurity.
The pH value 7.5-7.8 of water after purification, total dissolved solid 1100mg/L, petroleum total content 8mg/L, content of beary metal
Less than 0.5mg/L, COD is less than or equal to 35mg/L(COD).
Embodiment 5
The Paint wastewater treatment method specifically comprises the following steps: the B sewage treatment by paint waste water collection in cesspool
Agent (30 parts of four water-calcium nitrate, nine 1 part of water aluminum nitrates, 0.1 part of nonionic surfactant, 10 parts of aluminium containing polymer, 30 parts of water),
C sewage-treating agent (5 parts of naphthalenesulfonate formaldehyde condensation compound, 0.02 part of coconut oil oxalic acid amide, 0.2 part of inorganic salts, inorganic base
0.5 part, 60 parts of moisture), will then be subsequently added into A sewage-treating agent (2 parts of choline chloride, 0.1 part of chitin, nano metal oxygen
0.1 part of compound, 40 parts of cationic polyacrylamide, 40 parts of water), there is precipitating to generate after mixing evenly, sedimentation filtration removes precipitating
Impurity.
The pH value 7.5-7.8 of water after purification, total dissolved solid 1000mg/L, petroleum total content 10mg/L, heavy metal contain
Amount is less than 0.3mg/L, and COD is less than or equal to 35mg/L(COD).
Embodiment 6
The Paint wastewater treatment method specifically comprises the following steps: the B sewage treatment by paint waste water collection in cesspool
Agent (30 parts of four water-calcium nitrate, nine 1 part of water aluminum nitrates, 0.1 part of nonionic surfactant, 10 parts of aluminium containing polymer, 30 parts of water)
Be added in paint waste water, then by A sewage-treating agent (2 parts of choline chloride, 0.1 part of chitin, nano-metal-oxide 0.1
Part, 40 parts of cationic polyacrylamide, 40 parts of water) it is added in paint waste water, completely to sewage-treating agent dispersion, paint sewage
In with a small amount of precipitating after, be added C sewage-treating agent (5 parts of naphthalenesulfonate formaldehyde condensation compound, coconut oil oxalic acid amide 0.02
Part, 0.2 part of inorganic salts, 0.5 part of inorganic base, 60 parts of moisture) there are a large amount of precipitatings to generate after mixing evenly, sedimentation filtration removes heavy
Shallow lake impurity.
The pH value 7.5-7.8 of water after purification, total dissolved solid 800mg/L, petroleum total content 6mg/L, content of beary metal
Less than 0.7mg/L, COD is less than or equal to 38mg/L(COD).
Embodiment 7
The Paint wastewater treatment method specifically comprises the following steps: the B sewage treatment by paint waste water collection in cesspool
Agent (30 parts of four water-calcium nitrate, nine 1 part of water aluminum nitrates, 0.1 part of nonionic surfactant, 10 parts of aluminium containing polymer, 30 parts of water)
Be added in paint waste water, then by C sewage-treating agent (5 parts of naphthalenesulfonate formaldehyde condensation compound, coconut oil oxalic acid amide 0.02
Part, 0.2 part of inorganic salts, 0.5 part of inorganic base, 60 parts of moisture) it is added in paint waste water, completely to sewage-treating agent dispersion, oil
After painting in sewage with a small amount of precipitating, be added A sewage-treating agent (2 parts of choline chloride, 0.1 part of chitin, nano-metal-oxide
0.1 part, 40 parts of cationic polyacrylamide, 40 parts of water) there are a large amount of precipitatings to generate after mixing evenly, it is miscellaneous that sedimentation filtration removes precipitating
Matter.
The pH value 7.5-7.8 of water after purification, total dissolved solid 600mg/L, petroleum total content 6mg/L, content of beary metal
Less than 0.6mg/L, COD is less than or equal to 40mg/L(COD).
Comparative example 1
The Paint wastewater treatment method specifically comprises the following steps: the A sewage treatment by paint waste water collection in cesspool
Agent (40 parts of cationic polyacrylamide, 40 parts of water) is added in paint waste water, then by B sewage-treating agent (four water-calcium nitrate
30 parts, nine 1 part of water aluminum nitrates, 0.1 part of nonionic surfactant, 30 parts of water) it is added in paint waste water, to sewage-treating agent
Dispersion completely, after painting in sewage with a small amount of precipitating, be added C sewage-treating agent (5 parts of naphthalenesulfonate formaldehyde condensation compound, cocounut oil
0.02 part of sour oxalic acid amide, 0.2 part of inorganic salts, 0.5 part of inorganic base, 60 parts of moisture), there is a large amount of precipitating lifes after mixing evenly
At sedimentation filtration removes precipitated impurities.
The pH value 7.5-7.8 of water after purification, total dissolved solid 2500mg/L, petroleum total content 20mg/L, heavy metal contain
Amount is less than 2.0mg/L, and COD is less than or equal to 200mg/L(COD).
Comparative example 2
The Paint wastewater treatment method specifically comprises the following steps: the A sewage treatment by paint waste water collection in cesspool
Agent (2 parts of choline chloride, 0.1 part of nano-metal-oxide, 40 parts of cationic polyacrylamide, 40 parts of water) is added to paint waste water
In, then by B sewage-treating agent, (30 parts of four water-calcium nitrate, nine 1 portion of water aluminum nitrates, contain aluminium by 0.1 part of nonionic surfactant
10 parts of polymer, 30 parts of water) it is added in paint waste water, completely to sewage-treating agent dispersion, paint in sewage with a small amount of heavy
Behind shallow lake, and addition C sewage-treating agent (5 parts of naphthalenesulfonate formaldehyde condensation compound, 0.02 part of coconut oil oxalic acid amide, inorganic salts 0.2
Part, 0.5 part of inorganic base, 60 parts of moisture), there are a large amount of precipitatings to generate after mixing evenly, sedimentation filtration removes precipitated impurities.
The pH value 7.5-7.8 of water after purification, total dissolved solid 1500mg/L, petroleum total content 16mg/L, heavy metal contain
Amount is less than 0.5mg/L, and COD is less than or equal to 100mg/L(COD).
Comparative example 3
The Paint wastewater treatment method specifically comprises the following steps: the A sewage treatment by paint waste water collection in cesspool
Agent (2 parts of choline chloride, 0.1 part of chitin, 40 parts of cationic polyacrylamide, 40 parts of water) is added in paint waste water, then will
B sewage-treating agent (30 parts of four water-calcium nitrate, nine 1 part of water aluminum nitrates, 0.1 part of nonionic surfactant, aluminium containing polymer 10
Part, 30 parts of water) it is added in paint waste water, completely to sewage-treating agent dispersion, after painting in sewage with a small amount of precipitating, it is added
C sewage-treating agent (5 parts of naphthalenesulfonate formaldehyde condensation compound, 0.02 part of coconut oil oxalic acid amide, 0.2 part of inorganic salts, inorganic base
0.5 part, 60 parts of moisture), there are a large amount of precipitatings to generate after mixing evenly, sedimentation filtration removes precipitated impurities.
The pH value 7.5-7.8 of water after purification, total dissolved solid 1500mg/L, petroleum total content 15mg/L, heavy metal contain
Amount is less than 0.5mg/L, and COD is less than or equal to 150mg/L(COD).
Comparative example 4
The Paint wastewater treatment method specifically comprises the following steps: the A sewage treatment by paint waste water collection in cesspool
(2 parts of choline chloride, 0.1 part of chitin, 0.1 part of nano-metal-oxide, 40 parts of cationic polyacrylamide, 40 parts of water) of agent add
Enter into paint waste water, then by B sewage-treating agent (30 parts of four water-calcium nitrate, nine 1 part of water aluminum nitrates, non-ionic surface active
0.1 part of agent, 30 parts of water) it is added in paint waste water, completely to sewage-treating agent dispersion, paint in sewage with a small amount of precipitating
Afterwards, be added C sewage-treating agent (5 parts of naphthalenesulfonate formaldehyde condensation compound, 0.02 part of coconut oil oxalic acid amide, 0.2 part of inorganic salts,
0.5 part of inorganic base, 60 parts of moisture), there are a large amount of precipitatings to generate after mixing evenly, sedimentation filtration removes precipitated impurities.
The pH value 7.5-7.8 of water after purification, total dissolved solid 2000mg/L, petroleum total content 5mg/L, content of beary metal
Less than 1.0mg/L, COD is less than or equal to 30mg/L(COD).
Comparative example 5
The Paint wastewater treatment method specifically comprises the following steps: the A sewage treatment by paint waste water collection in cesspool
Agent (2 parts of choline chloride, 40 parts of cationic polyacrylamide, 40 parts of water) is added in paint waste water, then by B sewage-treating agent
(30 parts of four water-calcium nitrate, nine 1 part of water aluminum nitrates, 0.1 part of nonionic surfactant, 10 parts of aluminium containing polymer, 30 parts of water) add
Enter into paint waste water, completely to sewage-treating agent dispersion, after painting in sewage with a small amount of precipitating, C sewage-treating agent is added
(5 parts of naphthalenesulfonate formaldehyde condensation compound, 0.02 part of coconut oil oxalic acid amide, 0.2 part of inorganic salts, 0.5 part of inorganic base, moisture 60
Part), there are a large amount of precipitatings to generate after mixing evenly, sedimentation filtration removes precipitated impurities.
The pH value 7.5-7.8 of water after purification, total dissolved solid 1500mg/L, petroleum total content 20mg/L, heavy metal contain
Amount is less than 0.5mg/L, and COD is less than or equal to 200mg/L(COD).
Comparative example 6
The Paint wastewater treatment method specifically comprises the following steps: the A sewage treatment by paint waste water collection in cesspool
(2 parts of choline chloride, 0.1 part of chitin, 0.1 part of nano-metal-oxide, 40 parts of cationic polyacrylamide, 40 parts of water) of agent add
Enter into paint waste water, addition C sewage-treating agent (5 parts of naphthalenesulfonate formaldehyde condensation compound, 0.02 part of coconut oil oxalic acid amide,
0.2 part of inorganic salts, 0.5 part of inorganic base, 60 parts of moisture), there are a large amount of precipitatings to generate after mixing evenly, sedimentation filtration removes precipitating
Impurity.
The pH value 7.5-7.8 of water after purification, total dissolved solid 2500mg/L, petroleum total content 5mg/L, content of beary metal
Less than 1.5mg/L, COD is less than or equal to 30mg/L(COD).
Comparative example 7
The Paint wastewater treatment method specifically comprises the following steps: the A sewage treatment by paint waste water collection in cesspool
(2 parts of choline chloride, 0.1 part of chitin, 0.1 part of nano-metal-oxide, 40 parts of cationic polyacrylamide, 40 parts of water) of agent add
Enter into paint waste water, then by B sewage-treating agent (30 parts of four water-calcium nitrate, nine 1 part of water aluminum nitrates, non-ionic surface active
0.1 part of agent, 10 parts of aluminium containing polymer, 30 parts of water) it is added in paint waste water, completely to sewage-treating agent dispersion, paint sewage
In with a small amount of precipitating after, be added C sewage-treating agent (5 parts of naphthalenesulfonate formaldehyde condensation compound, coconut oil oxalic acid amide 0.02
Part, 0.2 part of inorganic salts, 60 parts of moisture), there are a large amount of precipitatings to generate after mixing evenly, sedimentation filtration removes precipitated impurities.
The pH value 5.4-5.9 of water after purification, total dissolved solid 800mg/L, petroleum total content 3mg/L, content of beary metal
Less than 1.0mg/L, COD is less than or equal to 30mg/L(COD).
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
The equivalent changes and modifications that content is done according to the present invention are encompassed by the scope of the patents of the invention.
Claims (10)
1. a kind of Paint wastewater treatment method, which is characterized in that the Paint wastewater treatment method specifically comprises the following steps:
Paint waste water is collected in cesspool, A sewage-treating agent is added in paint waste water, is then added to B sewage-treating agent
In paint waste water, completely to sewage-treating agent dispersion, after painting in sewage with a small amount of precipitating, C sewage-treating agent, stirring is added
There are a large amount of precipitatings to generate after uniformly, sedimentation filtration removes precipitated impurities.
2. a kind of Paint wastewater treatment method according to claim 1, which is characterized in that the group of the A sewage-treating agent
At and parts by weight: 2-5 parts of choline chloride, 0.1-2 parts of chitin, 0.1-1 parts of nano-metal-oxide, cationic polyacrylamide
30-45 parts, 40-50 parts of water.
3. a kind of Paint wastewater treatment method according to claim 1, which is characterized in that technical side as one preferred
Case, the composition and parts by weight of the B sewage-treating agent: 30-40 parts of four water-calcium nitrate, nine 1-5 parts of water aluminum nitrates, non-ionic surface
0.1-0.5 parts of activating agent, 10-20 parts of aluminium containing polymer, 30-50 parts of water.
4. a kind of Paint wastewater treatment method according to claim 1, which is characterized in that the group of the C sewage-treating agent
At and parts by weight: 5-10 parts of naphthalenesulfonate formaldehyde condensation compound, 0.02-0.04 parts of coconut oil oxalic acid amide, inorganic salts 0.2-0.4
Part, 0.5-2.0 parts of inorganic base, 60-90 parts of moisture.
5. a kind of Paint wastewater treatment method according to claim 1, which is characterized in that the nonionic surfactant
Selected from alkyl phenol polyoxyethylene ether, high-carbon fatty alcohol polyoxyethylene ether, polyoxyethylene carboxylate, fatty acid methyl ester ethoxylation
Object, one or more of ethylene oxide adduct of polypropylene glycol.
6. a kind of Paint wastewater treatment method according to claim 1, which is characterized in that the inorganic salts are selected from sulfuric acid
Sodium, one or both of potassium sulfate.
7. a kind of Paint wastewater treatment method according to claim 1, which is characterized in that the inorganic base sodium hydroxide,
Calcium hydroxide, one or more of potassium hydroxide.
8. a kind of Paint wastewater treatment method according to claim 1, which is characterized in that the aluminium containing polymer is selected from poly-
Close aluminum sulfate, one or both of aluminium polychloride.
9. a kind of Paint wastewater treatment method according to claim 1, which is characterized in that the chitin is deacetylation
Chitin, wherein chitin deacetylation is 40-50%.
10. a kind of Paint wastewater treatment method according to claim 1, which is characterized in that the nano-metal-oxide
Selected from titanium oxide, one or both of iron oxide.
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| CN201810945123.0A CN108975577A (en) | 2018-08-20 | 2018-08-20 | A kind of Paint wastewater treatment method |
| CN202211291353.2A CN115572011A (en) | 2018-08-20 | 2018-08-20 | Paint wastewater treatment agent composition and paint wastewater treatment method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111875116A (en) * | 2020-08-10 | 2020-11-03 | 青岛众诚三兄弟环境工程有限公司 | Paint wastewater treatment composition and treatment method |
| CN114604947A (en) * | 2022-03-21 | 2022-06-10 | 衡阳市建衡实业有限公司 | Titanium-containing composite ferric polysulfate flocculant and preparation method and application thereof |
| CN115557584A (en) * | 2021-06-15 | 2023-01-03 | 济南约瑟夫环保科技有限公司 | Preparation method and application of paint-water separating agent |
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| CN102390886A (en) * | 2011-07-07 | 2012-03-28 | 盐城工学院 | Preparation of organic/inorganic combined coating deadhesion agent and application of organic/inorganic combined coating deadhesion agent to spray painting wastewater |
| CN103771560A (en) * | 2014-01-16 | 2014-05-07 | 江苏集贤绿色化学科技研究院有限公司 | Oilfield sewage treatment agent and preparation method thereof |
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| US5985154A (en) * | 1998-01-29 | 1999-11-16 | Betz Dearborn Inc. | Methods and compositions for treating paint spray booth water |
| CN101407353A (en) * | 2008-11-06 | 2009-04-15 | 武汉理工大学 | Efficient paint mist coagulating agent and preparation thereof |
| CN104261529B (en) * | 2014-09-19 | 2015-12-02 | 句容亿格纳米材料厂 | A kind of Nanometer Titanium Dioxide powder coating flocculation agent and preparation method thereof |
| CN107324415A (en) * | 2017-08-01 | 2017-11-07 | 天津中瑞水处理剂有限公司 | A kind of heavy metal-polluted water treatment agent |
| CN108191028A (en) * | 2018-01-11 | 2018-06-22 | 武汉理工大学 | A kind of paint sewage agglomeration process agent and its application |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390886A (en) * | 2011-07-07 | 2012-03-28 | 盐城工学院 | Preparation of organic/inorganic combined coating deadhesion agent and application of organic/inorganic combined coating deadhesion agent to spray painting wastewater |
| CN103771560A (en) * | 2014-01-16 | 2014-05-07 | 江苏集贤绿色化学科技研究院有限公司 | Oilfield sewage treatment agent and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111875116A (en) * | 2020-08-10 | 2020-11-03 | 青岛众诚三兄弟环境工程有限公司 | Paint wastewater treatment composition and treatment method |
| CN115385489A (en) * | 2020-08-10 | 2022-11-25 | 青岛众诚三兄弟环境工程有限公司 | Paint wastewater treatment composition and application thereof in paint wastewater treatment |
| CN115557584A (en) * | 2021-06-15 | 2023-01-03 | 济南约瑟夫环保科技有限公司 | Preparation method and application of paint-water separating agent |
| CN114604947A (en) * | 2022-03-21 | 2022-06-10 | 衡阳市建衡实业有限公司 | Titanium-containing composite ferric polysulfate flocculant and preparation method and application thereof |
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| CN115572011A (en) | 2023-01-06 |
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