CN109081411A - A kind of quick flocculating agent and its preparation method and application - Google Patents
A kind of quick flocculating agent and its preparation method and application Download PDFInfo
- Publication number
- CN109081411A CN109081411A CN201811050709.7A CN201811050709A CN109081411A CN 109081411 A CN109081411 A CN 109081411A CN 201811050709 A CN201811050709 A CN 201811050709A CN 109081411 A CN109081411 A CN 109081411A
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- Prior art keywords
- flocculating agent
- quick flocculating
- quick
- powder
- agent preparation
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- 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.)
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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
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
-
- 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
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
Abstract
The invention discloses a kind of quick flocculating agent preparation method, include the following steps: to mix aluminium hydroxide, ferroso-ferric oxide, humic acid, grinding, polyethylene glycol, ethanol solution stirring is added, spray drying obtains material a;By zeolite powder, bagasse, urea, sodium hydroxide stirring, regulation system is in neutrality, filters, be washed with water, dry, pulverize, immerses in silica suspension and stir, and spray drying obtains material b;Polyacrylamide, ferric-polysilicate, talcum powder, coal gangue powder, coconut husk charcoal, material a, material b are uniformly mixed, addition microcrystalline cellulose, pectin stir evenly, and are dried to obtain quick flocculating agent.The invention also discloses a kind of quick flocculating agents.The invention also discloses the applications of above-mentioned quick flocculating agent.Gained quick flocculating agent of the invention has biggish electric polarity and gap structure abundant, can pollutant effectively in adsorbed water body, absorption property is extremely strong, and recycling rate of waterused is good, while low in cost, economic benefits.
Description
Technical field
The present invention relates to water-treatment technology fields more particularly to a kind of quick flocculating agent and its preparation method and application.
Background technique
In tunnel durings cleaning, rivers and creeks construction etc., a large amount of sewage, mud etc. are inevitably resulted from.If will
These sewage, mud directly release at the construction field (site), can cause adverse effect to water environment around.At abroad, would generally be
These sewage are recycled with tank car, after retracting the sewage treatment that incity sewage treatment plant carries out profession, could be discharged, in this way
Both many time had been needed, schedule delays, and need a large amount of sewage treatment expense.
Summary of the invention
Technical problems based on background technology the invention proposes a kind of quick flocculating agent and preparation method thereof and are answered
There is biggish electric polarity and gap structure abundant with, gained quick flocculating agent, it can pollutant, absorption effectively in adsorbed water body
Performance is extremely strong, and recycling rate of waterused is good, while low in cost, economic benefits.
A kind of quick flocculating agent preparation method proposed by the present invention, includes the following steps:
S1, aluminium hydroxide, ferroso-ferric oxide, humic acid are mixed, grinding, polyethylene glycol, ethanol solution stirring, spray is added
Mist is dried to obtain material a;
S2, zeolite powder, bagasse, urea, sodium hydroxide are stirred, regulation system is in neutrality, and is filtered, is washed with water, and is done
It is dry, it crushes, immerses in silica suspension and stir, spray drying obtains material b;
S3, polyacrylamide, ferric-polysilicate, talcum powder, coal gangue powder, coconut husk charcoal, material a, material b are uniformly mixed,
Addition microcrystalline cellulose, pectin stir evenly, and are dried to obtain quick flocculating agent.
Preferably, in S1, ethanol solution concentration 25-45wt%.
Preferably, in S1, aluminium hydroxide, ferroso-ferric oxide, humic acid, polyethylene glycol, ethanol solution weight ratio be 40-
50:12-20:4-8:2-4:80-120.
Preferably, in S1, aluminium hydroxide, ferroso-ferric oxide, humic acid is mixed, 20-40min is ground, grinding pressure is
Polyethylene glycol, ethanol solution stirring 10-20min is added in 0.3-0.7Mpa, and whipping temp is 175-185 DEG C, 220-230 DEG C of spray
Mist is dried to obtain material a.
Preferably, in S2, zeolite powder, bagasse, urea, sodium hydroxide are stirred into 25-45min, whipping temp 78-86
℃。
Preferably, it in S2, immerses in silica suspension and stirs 2-4h, whipping temp is 86-92 DEG C, and silica is outstanding
Supernatant liquid concentration is 0.7-1.3wt%.
Preferably, in S2, zeolite powder, bagasse, urea, sodium hydroxide weight ratio be 8-16:16-22:4-8:4-8.
Preferably, polyacrylamide, ferric-polysilicate, talcum powder, coal gangue powder, coconut husk charcoal, material a, material b, micro- in S3
Crystalline cellulose, the weight ratio of pectin are 20-30:15-25:8-16:4-8:3-6:20-30:10-20:4-8:6-14.
A kind of quick flocculating agent proposed by the present invention is made using above-mentioned quick flocculating agent preparation method.
Application of the above-mentioned quick flocculating agent proposed by the present invention as sewage-treating agent.
In S1 of the present invention, aluminium hydroxide, ferroso-ferric oxide, humic acid compounding are ground, the carboxylic in humic acid molecular structures
There are dissociable hydrogen ions for base and phenolic hydroxyl group, and contain various polarity function base, on the one hand with the iron in ferroso-ferric oxide
Ion has good complexing power, and magnetic adsorption capacity is strong, and has fabulous hydrophilic and hydrogen bond action, another party with alkaloid
The bond strength of face and aluminium hydroxide is high, further polyethylene glycol is cooperated to react to form aluminium hydroxide glue object, by doing by spraying
After dry, adsorption strength is high;It is high with the combination degree of urea using zeolite powder, bagasse after sodium hydroxide alkalizes in S2,
Cooperate with silica, it can pollutant effectively in adsorbed water body;In S3, material b cooperates material a effect, and absorption property is extremely strong, right
There is absorption and package action well in most of organic molecule and inorganic heavy metal, and recycling rate of waterused is good, further
Cooperate polyacrylamide, ferric-polysilicate effect, moisture is not easy to pass therethrough, and has biggish electric polarity and sky abundant
Gap structure, economic benefits good while low in cost for the waste water adsorption effect containing heavy metal.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of quick flocculating agent preparation method, includes the following steps:
S1,40kg aluminium hydroxide, 20kg ferroso-ferric oxide, 4kg humic acid are mixed, grinds 40min, grinding pressure is
0.3Mpa, be added 4kg polyethylene glycol, 80kg concentration be 45wt% ethanol solution stir 10min, whipping temp be 185 DEG C, 220
DEG C spray drying obtains material a;
S2,16kg zeolite powder, 16kg bagasse, 8kg urea, 4kg sodium hydroxide are stirred into 45min, whipping temp 78
DEG C, it is in neutrality using concentration 1.2mol/L sulfuric acid solution regulation system, filters, be washed with water, dry, pulverize, immersing concentration is
4h is stirred in the silica suspension of 0.7wt%, whipping temp is 86 DEG C, and spray drying obtains material b;
S3, by 30kg polyacrylamide, 15kg ferric-polysilicate, 16kg talcum powder, 4kg coal gangue powder, 6kg coconut husk charcoal,
20kg material a, 20kg material b is uniformly mixed, and addition 4kg microcrystalline cellulose, 14kg pectin stir evenly, and is dried to obtain quick wadding
Solidifying agent.
Embodiment 2
A kind of quick flocculating agent preparation method, includes the following steps:
S1,50kg aluminium hydroxide, 12kg ferroso-ferric oxide, 8kg humic acid are mixed, grinds 20min, grinding pressure is
0.7Mpa, be added 2kg polyethylene glycol, 120kg concentration be 25wt% ethanol solution stir 20min, whipping temp be 175 DEG C, 230
DEG C spray drying obtains material a;
S2,8kg zeolite powder, 22kg bagasse, 4kg urea, 8kg sodium hydroxide are stirred into 25min, whipping temp 86
DEG C, it is in neutrality using concentration 0.6mol/L sulfuric acid solution regulation system, filters, be washed with water, dry, pulverize, immersing concentration is
2h is stirred in the silica suspension of 1.3wt%, whipping temp is 92 DEG C, and spray drying obtains material b;
S3, by 20kg polyacrylamide, 25kg ferric-polysilicate, 8kg talcum powder, 8kg coal gangue powder, 3kg coconut husk charcoal, 30kg
Material a, 10kg material b is uniformly mixed, and addition 8kg microcrystalline cellulose, 6kg pectin stir evenly, and is dried to obtain quick flocculating agent.
Embodiment 3
A kind of quick flocculating agent preparation method, includes the following steps:
S1,44kg aluminium hydroxide, 18kg ferroso-ferric oxide, 5kg humic acid are mixed, grinds 35min, grinding pressure is
0.4Mpa is added 3.5kg polyethylene glycol, 90kg concentration as 40wt% ethanol solution and stirs 12min, and whipping temp is 182 DEG C,
222 DEG C of spray drying obtain material a;
S2,14kg zeolite powder, 18kg bagasse, 7kg urea, 5kg sodium hydroxide are stirred into 40min, whipping temp 80
DEG C, it is in neutrality using concentration 1mol/L sulfuric acid solution regulation system, filters, be washed with water, dry, pulverize, immersing concentration is
3.5h is stirred in the silica suspension of 0.8wt%, whipping temp is 88 DEG C, and spray drying obtains material b;
S3, by 28kg polyacrylamide, 18kg ferric-polysilicate, 14kg talcum powder, 5kg coal gangue powder, 5kg coconut husk charcoal,
22kg material a, 18kg material b is uniformly mixed, and addition 5kg microcrystalline cellulose, 12kg pectin stir evenly, and is dried to obtain quick wadding
Solidifying agent.
Embodiment 4
A kind of quick flocculating agent preparation method, includes the following steps:
S1,46kg aluminium hydroxide, 14kg ferroso-ferric oxide, 7kg humic acid are mixed, grinds 25min, grinding pressure is
0.6Mpa is added 2.5kg polyethylene glycol, 110kg concentration as 30wt% ethanol solution and stirs 18min, and whipping temp is 178 DEG C,
228 DEG C of spray drying obtain material a;
S2,10kg zeolite powder, 20kg bagasse, 5kg urea, 7kg sodium hydroxide are stirred into 30min, whipping temp 84
DEG C, it is in neutrality using concentration 0.8mol/L sulfuric acid solution regulation system, filters, be washed with water, dry, pulverize, immersing concentration is
2.5h is stirred in the silica suspension of 1.2wt%, whipping temp is 90 DEG C, and spray drying obtains material b;
S3, by 22kg polyacrylamide, 22kg ferric-polysilicate, 10kg talcum powder, 7kg coal gangue powder, 4kg coconut husk charcoal,
28kg material a, 12kg material b is uniformly mixed, and addition 7kg microcrystalline cellulose, 8kg pectin stir evenly, and is dried to obtain quick wadding
Solidifying agent.
Embodiment 5
A kind of quick flocculating agent preparation method, includes the following steps:
S1,45kg aluminium hydroxide, 16kg ferroso-ferric oxide, 6kg humic acid are mixed, grinds 30min, grinding pressure is
0.5Mpa, be added 3kg polyethylene glycol, 100kg concentration be 35wt% ethanol solution stir 15min, whipping temp be 180 DEG C, 225
DEG C spray drying obtains material a;
S2,12kg zeolite powder, 19kg bagasse, 6kg urea, 6kg sodium hydroxide are stirred into 35min, whipping temp 82
DEG C, it is in neutrality using concentration 0.9mol/L sulfuric acid solution regulation system, filters, be washed with water, dry, pulverize, immersing concentration is
3h is stirred in the silica suspension of 1wt%, whipping temp is 89 DEG C, and spray drying obtains material b;
S3, by 25kg polyacrylamide, 20kg ferric-polysilicate, 12kg talcum powder, 6kg coal gangue powder, 4.5kg coconut husk charcoal,
25kg material a, 15kg material b is uniformly mixed, and addition 6kg microcrystalline cellulose, 10kg pectin stir evenly, and is dried to obtain quick wadding
Solidifying agent.
5 gained quick flocculating agent of embodiment is used for sewage treatment, result is as follows:
Before processing | After processing | |
Biochemical oxygen demand (BOD), mg/L | 48.9 | 8.0 |
COD, mg/L | 387 | 33.6 |
Total phosphorus, mg/L | 0.96 | 0.01 |
SS, mg/L | 236 | 5 |
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of quick flocculating agent preparation method, which comprises the steps of:
S1, aluminium hydroxide, ferroso-ferric oxide, humic acid are mixed, grinding, polyethylene glycol, ethanol solution stirring is added, it is spraying dry
It is dry to obtain material a;
S2, zeolite powder, bagasse, urea, sodium hydroxide are stirred, regulation system is in neutrality, and is filtered, is washed with water, dry, powder
It is broken, it immerses in silica suspension and stirs, spray drying obtains material b;
S3, polyacrylamide, ferric-polysilicate, talcum powder, coal gangue powder, coconut husk charcoal, material a, material b are uniformly mixed, are added
Microcrystalline cellulose, pectin stir evenly, and are dried to obtain quick flocculating agent.
2. quick flocculating agent preparation method according to claim 1, which is characterized in that in S1, ethanol solution concentration 25-
45wt%.
3. quick flocculating agent preparation method according to claim 1 or claim 2, which is characterized in that in S1, aluminium hydroxide, four oxidations
Three-iron, humic acid, polyethylene glycol, ethanol solution weight ratio be 40-50:12-20:4-8:2-4:80-120.
4. any one of -3 quick flocculating agent preparation method according to claim 1, which is characterized in that in S1, by aluminium hydroxide,
Ferroso-ferric oxide, humic acid mixing, grind 20-40min, grinding pressure 0.3-0.7Mpa, polyethylene glycol, ethanol solution are added
10-20min is stirred, whipping temp is 175-185 DEG C, and 220-230 DEG C of spray drying obtains material a.
5. any one of -4 quick flocculating agent preparation method according to claim 1, which is characterized in that in S2, by zeolite powder, sweet
Bagasse, urea, sodium hydroxide stir 25-45min, and whipping temp is 78-86 DEG C.
6. any one of -5 quick flocculating agent preparation method according to claim 1, which is characterized in that in S2, immerse titanium dioxide
2-4h is stirred in silicon suspension, whipping temp is 86-92 DEG C, and silica suspension concentration is 0.7-1.3wt%.
7. any one of -6 quick flocculating agent preparation method according to claim 1, which is characterized in that in S2, zeolite powder, sugarcane
Slag, urea, sodium hydroxide weight ratio be 8-16:16-22:4-8:4-8.
8. any one of -7 quick flocculating agent preparation method according to claim 1, which is characterized in that in S3, polyacrylamide,
Ferric-polysilicate, talcum powder, coal gangue powder, coconut husk charcoal, material a, material b, microcrystalline cellulose, pectin weight ratio be 20-30:
15-25:8-16:4-8:3-6:20-30:10-20:4-8:6-14.
9. a kind of quick flocculating agent, which is characterized in that using any one of the claim 1-7 quick flocculating agent preparation method system
?.
10. a kind of application of quick flocculating agent as claimed in claim 9 as sewage-treating agent.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110368914A (en) * | 2019-07-03 | 2019-10-25 | 合山市春旭环保科技有限责任公司 | A kind of composite water treatment medicament and preparation method thereof for heavy metal containing wastewater treatment |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102234151A (en) * | 2010-04-27 | 2011-11-09 | 吉林市明瀚化工有限公司 | Functional high polymer flocculant and preparation method thereof |
CN104229957A (en) * | 2013-06-24 | 2014-12-24 | 张家领 | Compound flocculant taking natural minerals as main components |
CN106830162A (en) * | 2017-02-13 | 2017-06-13 | 安徽其霖环境工程技术有限公司 | A kind of heavy metal wastewater thereby adsorbent with low cost |
CN107827217A (en) * | 2017-11-28 | 2018-03-23 | 芜湖上水源环保科技有限公司 | A kind of composite flocculation agent preparation method for water process |
CN107983312A (en) * | 2017-11-30 | 2018-05-04 | 重庆精创联合环保工程有限公司 | For removing the adsorbent composition of heavy metals in industrial wastewater ion |
CN108503007A (en) * | 2018-03-14 | 2018-09-07 | 芜湖格丰环保科技研究院有限公司 | A kind of removing arsenic in water material and its application in arsenic-containing waste water processing |
-
2018
- 2018-09-10 CN CN201811050709.7A patent/CN109081411A/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102234151A (en) * | 2010-04-27 | 2011-11-09 | 吉林市明瀚化工有限公司 | Functional high polymer flocculant and preparation method thereof |
CN104229957A (en) * | 2013-06-24 | 2014-12-24 | 张家领 | Compound flocculant taking natural minerals as main components |
CN106830162A (en) * | 2017-02-13 | 2017-06-13 | 安徽其霖环境工程技术有限公司 | A kind of heavy metal wastewater thereby adsorbent with low cost |
CN107827217A (en) * | 2017-11-28 | 2018-03-23 | 芜湖上水源环保科技有限公司 | A kind of composite flocculation agent preparation method for water process |
CN107983312A (en) * | 2017-11-30 | 2018-05-04 | 重庆精创联合环保工程有限公司 | For removing the adsorbent composition of heavy metals in industrial wastewater ion |
CN108503007A (en) * | 2018-03-14 | 2018-09-07 | 芜湖格丰环保科技研究院有限公司 | A kind of removing arsenic in water material and its application in arsenic-containing waste water processing |
Non-Patent Citations (2)
Title |
---|
XIAOLI ZHAO ET AL.: "Removal of fluoride from aqueous media by Fe3O4@Al(OH)3 magnetic nanoparticles", 《JOURNAL OF HAZARDOUS MATERIALS》 * |
崔春翔等: "《材料合成与制备》", 31 January 2010, 华东理工大学出版社 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110368914A (en) * | 2019-07-03 | 2019-10-25 | 合山市春旭环保科技有限责任公司 | A kind of composite water treatment medicament and preparation method thereof for heavy metal containing wastewater treatment |
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Application publication date: 20181225 |