CN106219710A - Water treatment composite flocculant - Google Patents
Water treatment composite flocculant Download PDFInfo
- Publication number
- CN106219710A CN106219710A CN201610857259.7A CN201610857259A CN106219710A CN 106219710 A CN106219710 A CN 106219710A CN 201610857259 A CN201610857259 A CN 201610857259A CN 106219710 A CN106219710 A CN 106219710A
- Authority
- CN
- China
- Prior art keywords
- flocculant
- polyacrylamide
- water treatment
- iron salt
- granule
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F1/5263—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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
Abstract
The present invention proposes a kind of water treatment composite flocculant, it is in granular form, described flocculant granule is formed by double-deck flocculant is compound, it is flyash modified iron salt outside described flocculant granule, internal layer is the polyacrylamide of carboxymethyl chitosan cladding, the percetage by weight of its component is: flyash modified iron salt 45～65%, polyacrylamide 10～30%, carboxymethyl chitosan 5～20%.This flocculant combines the inorganic and feature of organic flocculant, improves adding of agent mode, and the structure of multilamellar slow release adds the functioning efficiency of medicament, improves the usefulness of medicament.
Description
Technical field
The invention belongs to flocculant technical field, be specifically related to a kind of water treatment composite flocculant.
Background technology
Along with the enhancing of people's environmental consciousness, industrial wastewater, the up to standard of municipal sewage are treated as the task of top priority.According to tune
Looking into, current Industrial Wastewater Treatment amount is less than the 20% of total amount, and municipal sewage the most only experimentally processes in a few cities,
Main cause is that processing cost is high.Therefore, efficient, cheap waste water treating agent is developed very urgent.Flocculant is most important
Water treatment agent, its consumption is very big, is incremented by with the highest percentage ratio every year.
Flocculant is mainly used in feedwater and sewage treatment area.Chemical agent coagulating sedimentation is universal in water technology
The method used.The method has small investment, takes up an area the features such as little, operating cost is low, wide adaptability.Coagulating sedimentation is processed at water
In be broadly directed to flocculant and feed intake opportunity, the environmental Kuznets Curves that feeds intake, inventory, stimulation effect etc., to reach effect of suitably flocculating
Really, the requirement that water is processed is met.
Along with water being processed the raising required, during adding of agent, combine the method added frequently with multiple flocculant
Meet the requirement to water quality.Once adding, for confection solution, the drawback that technique is primarily present is: medicament usefulness plays
Deficiency, dosage is big, easily cause waste, produce secondary pollution., then there is time of administration difficult in the technique in batches added for medicament
In control, equally exist medicament and can not give full play to the drawbacks such as usefulness.At present, the method that the combination of several flocculant adds mainly is deposited
The usefulness that subject matter is flocculant play complete, dosage is big, causes medicament waste, and operating cost increases, generation two
Secondary pollution, effluent index is unstable.
Summary of the invention
The present invention proposes a kind of water treatment composite flocculant, and this flocculant combines the inorganic and feature of organic flocculant,
Improving adding of agent mode, the structure of multilamellar slow release adds the functioning efficiency of medicament, improves the usefulness of medicament.
The technical scheme is that and be achieved in that:
A kind of water treatment composite flocculant, is in granular form, and described flocculant granule is formed by double-deck flocculant is compound, described
Being flyash modified iron salt outside flocculant granule, internal layer is the polyacrylamide of carboxymethyl chitosan cladding, the weight of its component
Amount percent is:
Flyash modified iron salt 45～65%, polyacrylamide 10～30%, carboxymethyl chitosan 5～20%.
Further, described iron salt is bodied ferric sulfate, iron sulfate or ferrous sulfate.
Further, the preparation method of flyash modified iron salt is: the sodium aluminate solution with 0.5～1mol/L is 50～70
Impregnate flyash 0.5～2h under the conditions of DEG C, then regulate pH to 1.8～2.4 with dilute sulfuric acid, add iron salt in wherein, then hydrogen
Sodium oxide regulation pH to 5.8～6.2, after stirring, ripening 2～3h.
Further, the addition of iron salt is 2～5:10 with the molal weight ratio of flyash.
Further, described polyacrylamide is cationic-type polyacrylamide, anion-polyacrylamide, amphion
Polyacrylamide or non-ionic polyacrylamide one of them or the mixture of its two or more arbitrary proportions.
Further, described flocculant granule be shaped as spherical or almost spherical granule, particle diameter is 0.1～3mm.
Beneficial effects of the present invention:
1, the present invention can make each component in composite flocculation agent discharge by regular hour sequence, thus effectively increases
The charging neutrality ability of medicament, builds bridge, ability caught by net, and alumen ustum is big, density is high, and settling velocity is fast, adapts to intractable low temperature low
Muddy water, medicament is thrown in dry powder form, has simple to operate, and consumption is few, and price is low, the feature of stable performance.
2, the outer layer of the present invention is flyash modified iron salt, and it is to have flyash to obtain in sodium aluminate solution modified copolymer method
, flocculating rate is up to 98～99.5%, is particularly conducive to Acid Dye Wastewater Treatment, it is to avoid conventionally employed sodium hydroxide
Needed for solution modification flyash, condition is harsh, the problem that degree of modification is low.
3, MULTILAYER COMPOSITE medicament has i.e. played the rapid compression double electric layer of inorganic flocculating agent, forms the feature that floc strength is big,
Played again organic polymer coargulator bridge formation, net is mended, volume sweeps ability by force, the feature that flco is big, overcomes organic-flocculation simultaneously
Agent floc strength is low, the shortcoming that consumption is big.The internal layer of the present invention uses the polyacrylamide of carboxymethyl chitosan cladding to substitute and passes
The starch of system, it, as alkalescence natural polymer, is more beneficial for the flocculation of Acid Dye Wastewater.
Detailed description of the invention
Embodiment 1
A kind of water treatment composite flocculant, is in granular form, and described flocculant granule is formed by double-deck flocculant is compound, described
Being flyash modified bodied ferric sulfate outside flocculant granule, internal layer is the polyacrylamide of carboxymethyl chitosan cladding, its group
The percetage by weight divided is:
Flyash modified bodied ferric sulfate 60%, polyacrylamide 30%, carboxymethyl chitosan 10%.
The preparation method of flyash modified bodied ferric sulfate is: with the sodium aluminate solution of 0.5mol/L under the conditions of 50 DEG C
Dipping flyash 2h, then regulates pH to 1.8 with dilute sulfuric acid, adds bodied ferric sulfate in wherein, then sodium hydroxide regulation pH
To 6.2, after stirring, ripening 2h.
The present invention uses injection composite algorithm, by flyash modified bodied ferric sulfate and the solid non-ionic of 30 kilograms of 60 liters
Type Polyacrylamide Powder, the carboxymethyl chitosan of 10 kilograms, carry out jet drying after mix and blend mixing, obtain the present invention's
Water processes the compound coagulant of multilamellar.
Embodiment 2
A kind of water treatment composite flocculant, is in granular form, and described flocculant granule is formed by double-deck flocculant is compound, described
Being flyash modified bodied ferric sulfate outside flocculant granule, internal layer is the polyacrylamide of carboxymethyl chitosan cladding, its group
The percetage by weight divided is:
Flyash modified bodied ferric sulfate 65%, polyacrylamide 30%, carboxymethyl chitosan 5%.
The present invention uses injection composite algorithm, by flyash modified bodied ferric sulfate and the solid non-ionic of 30 kilograms of 65 liters
Type Polyacrylamide Powder, the carboxymethyl chitosan of 5 kilograms, carry out jet drying after mix and blend mixing, obtain the present invention's
Water processes the compound coagulant of multilamellar.
The preparation method of flyash modified bodied ferric sulfate is: soak under the conditions of 60 DEG C with the sodium aluminate solution of 1mol/L
Stain flyash 1h, then regulates pH to 2 with dilute sulfuric acid, adds bodied ferric sulfate in wherein, then sodium hydroxide regulation pH to 6,
After stirring, ripening 2h.
Embodiment 3
A kind of water treatment composite flocculant, is in granular form, and described flocculant granule is formed by double-deck flocculant is compound, described
Being flyash modified iron sulfate outside flocculant granule, internal layer is the polyacrylamide of carboxymethyl chitosan cladding, its component
Percetage by weight is:
Flyash modified iron sulfate 50%, polyacrylamide 30%, carboxymethyl chitosan 20%.
The preparation method of flyash modified iron sulfate is: impregnate powder under the conditions of 70 DEG C with the sodium aluminate solution of 1mol/L
Coal ash 0.5h, then regulates pH to 2.4 with dilute sulfuric acid, adds iron salt in wherein, then sodium hydroxide regulation pH to 5.8, stirring
After Jun Yun, ripening 3h.
The present invention uses injection composite algorithm, the flyash modified iron sulfate of 50 liters and the Solid nonionic of 30 kilograms is gathered
Acrylamide powder, the carboxymethyl chitosan of 20 kilograms, carry out jet drying after mix and blend mixing, obtain at the water of the present invention
The compound coagulant of reason multilamellar.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (6)
1. a water treatment composite flocculant, is in granular form, it is characterised in that described flocculant granule is combined by double-deck flocculant
Composition, is flyash modified iron salt outside described flocculant granule, and internal layer is the polyacrylamide of carboxymethyl chitosan cladding, its
The percetage by weight of component is:
Flyash modified iron salt 45～65%, polyacrylamide 10～30%, carboxymethyl chitosan 5～20%.
Water treatment composite flocculant the most according to claim 1, it is characterised in that described iron salt is bodied ferric sulfate, sulfur
Acid ferrum or ferrous sulfate.
Water treatment composite flocculant the most according to claim 2, it is characterised in that the preparation method of flyash modified iron salt
For: the sodium aluminate solution with 0.5～1mol/L impregnates flyash 0.5～2h under the conditions of 50～70 DEG C, then uses dilute sulfuric acid
Regulation pH to 1.8～2.4, adds iron salt in wherein, then sodium hydroxide regulation pH to 5.8～6.2, after stirring, and ripening 2
～3h.
Water treatment composite flocculant the most according to claim 3, it is characterised in that the addition of iron salt is rubbed with flyash
Your mass ratio is 2～5:10.
Water treatment composite flocculant the most according to claim 1, it is characterised in that described polyacrylamide is cationic
Polyacrylamide, anion-polyacrylamide, amphion polyacrylamide or non-ionic polyacrylamide one of them
Or the mixture of its two or more arbitrary proportions.
Water treatment composite flocculant the most according to claim 1, it is characterised in that described flocculant granule be shaped as ball
Shape or almost spherical granule, particle diameter is 0.1～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610857259.7A CN106219710A (en) | 2016-09-27 | 2016-09-27 | Water treatment composite flocculant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610857259.7A CN106219710A (en) | 2016-09-27 | 2016-09-27 | Water treatment composite flocculant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106219710A true CN106219710A (en) | 2016-12-14 |
Family
ID=58076509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610857259.7A Pending CN106219710A (en) | 2016-09-27 | 2016-09-27 | Water treatment composite flocculant |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107082479A (en) * | 2017-06-02 | 2017-08-22 | 北京大学 | A kind of iron system phosphate eliminating flocculant with slow-release function and its preparation method and application |
| CN107840430A (en) * | 2017-12-18 | 2018-03-27 | 李进宅 | A kind of high efficiency sewage treating agent and its preparation method and application |
| CN108658196A (en) * | 2018-06-28 | 2018-10-16 | 芜湖市棠华建材科技有限公司 | Industrial Wastewater Treatment composite flocculation agent |
| CN108658197A (en) * | 2018-06-28 | 2018-10-16 | 芜湖市棠华建材科技有限公司 | Inorganic-organic composite flocculating agent |
| CN108773883A (en) * | 2018-06-28 | 2018-11-09 | 芜湖市棠华建材科技有限公司 | Sewage composite flocculation agent |
| CN108793360A (en) * | 2018-06-28 | 2018-11-13 | 芜湖市棠华建材科技有限公司 | The composite flocculation agent of organics removal |
| CN108840410A (en) * | 2018-06-28 | 2018-11-20 | 芜湖市棠华建材科技有限公司 | The flocculant of Acid Dye Wastewater processing |
| CN111849491A (en) * | 2020-07-30 | 2020-10-30 | 乐昌市住宅建筑工程有限公司 | High-standard farmland construction method |
| CN113087034A (en) * | 2021-03-31 | 2021-07-09 | 南京金湖环保科技有限公司 | Coated purification deodorant for sewage treatment and preparation process thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107082479A (en) * | 2017-06-02 | 2017-08-22 | 北京大学 | A kind of iron system phosphate eliminating flocculant with slow-release function and its preparation method and application |
| CN107840430A (en) * | 2017-12-18 | 2018-03-27 | 李进宅 | A kind of high efficiency sewage treating agent and its preparation method and application |
| CN108658196A (en) * | 2018-06-28 | 2018-10-16 | 芜湖市棠华建材科技有限公司 | Industrial Wastewater Treatment composite flocculation agent |
| CN108658197A (en) * | 2018-06-28 | 2018-10-16 | 芜湖市棠华建材科技有限公司 | Inorganic-organic composite flocculating agent |
| CN108773883A (en) * | 2018-06-28 | 2018-11-09 | 芜湖市棠华建材科技有限公司 | Sewage composite flocculation agent |
| CN108793360A (en) * | 2018-06-28 | 2018-11-13 | 芜湖市棠华建材科技有限公司 | The composite flocculation agent of organics removal |
| CN108840410A (en) * | 2018-06-28 | 2018-11-20 | 芜湖市棠华建材科技有限公司 | The flocculant of Acid Dye Wastewater processing |
| CN111849491A (en) * | 2020-07-30 | 2020-10-30 | 乐昌市住宅建筑工程有限公司 | High-standard farmland construction method |
| CN113087034A (en) * | 2021-03-31 | 2021-07-09 | 南京金湖环保科技有限公司 | Coated purification deodorant for sewage treatment and preparation process thereof |
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Application publication date: 20161214 |
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