CN105540797B - Efficient water treatment composite flocculant - Google Patents
Efficient water treatment composite flocculant Download PDFInfo
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- CN105540797B CN105540797B CN201610045097.7A CN201610045097A CN105540797B CN 105540797 B CN105540797 B CN 105540797B CN 201610045097 A CN201610045097 A CN 201610045097A CN 105540797 B CN105540797 B CN 105540797B
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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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
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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
- C02F1/28—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
- C02F1/52—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
- C02F1/56—Macromolecular compounds
Abstract
The present invention relates to a kind of efficient water treatment composite flocculants, by aluminium salt component, molysite component, solidifying component, organic-flocculation component and activated silicic acid group is helped to be grouped as, for aluminium salt component using one or more kinds of arbitrary combinations of aluminium polychloride, polyaluminium sulfate, poly- phosphorus aluminium chloride, polymer aluminium silicate, aluminium chloride, aluminum sulfate, usage amount is 10~40 parts in parts by weight；For molysite component using one or more kinds of arbitrary combinations of bodied ferric sulfate, poly-ferric chloride, ferrous sulfate, ferric sulfate, iron chloride, usage amount is 1~30 part in parts by weight；Help solidifying component using one or more kinds of arbitrary combinations of carbide slag, magnesium hydroxide, magnesium chloride, zinc chloride, usage amount is 1~10 part in parts by weight.When the efficient water treatment composite flocculant of the present invention is used in combination, can it is strong in conjunction with aluminium salt adsorption capacity, form that alumen ustum is big, the close precipitation of matter is fast and iron salt hydrolysis speed is fast, alumen ustum is closely knit, can effectively play aluminium salt and the synergistic effect of molysite.
Description
Technical field
The present invention relates to water treatment field more particularly to a kind of efficient water treatment composite flocculants.
Background technology
In recent years, as industrial or agricultural rapidly develops, industrial water consumption and quantity of wastewater effluent are continuously increased, environmental pollution by water
Problem is increasingly severe.Protection and rational utilization of water resources become the major issue of people's common concern.The flocculation treatment of water is
Important link in wastewater treatment.Flocculation process effectively can carry out turbid decontamination to sewage.Flocculant is determined at coagulation
The key factor for managing effect has weight to the operation conditions for the treatment of process follow-up process, effluent quality and operating cost expense etc.
It influences.
Flocculation mainly by increasing the collision of suspended particulate in water, makes it be combined with each other aggregation and becomes larger, to make suspension
Particle " de- steady " is easy to be separated from the water out.Flocculant can be divided into inorganic flocculation according to the difference of its chemical composition structure
Agent, organic flocculant and biological flocculant.Wherein, biological flocculant is sensitive to water quality, is vulnerable to the interference of noxious material, to place
The water sample of reason must be pre-processed largely.It is scarcely out of swaddling-clothes in actual development application.
Organic flocculant refers to the natural or synthetic organic substance that flocculation can be generated to waste water.Naturally have
Machine flocculant is mostly protein or polysaccharide water-soluble linear macromolecule.Natural organic high-molecular flocculant is due to its charge density
Small, molecular weight is relatively low, and the problems such as biological respinse inactivates easily occurs and limits its development.Synthesize organic flocculant in use
There are certain insecurity and it is easy to cause secondary pollution to environment.
Inorganic flocculating agent is mainly the flocculant being made of inorganic component.There are commonly aluminium salts and iron in water treatment procedure
Salt and inorganic polymer flocculant.The alite of small molecule is cheap but its flocculation sediment speed is slow, reagent consumption is high, nothing
By being the speed to form the density and speed of alumen ustum, or precipitate, there is the space raised.
Currently, with industrial and agricultural development, wastewater flow rate is more and more, ingredient becomes increasingly complex, oil displacement agent, oil in sewage,
Suspended matter, silt and mechanical admixture equal size are high, and common flocculant has some limitations in practical applications and deficiency,
Using effect has been far from the requirment.
Invention content
The object of the present invention is to provide when a kind of compound use, the floccule body body of generation is big and structure is closely knit, sedimentation speed
Degree is fast, is easy to water body separation, and wastewater treatment efficiency is obviously improved, while high to the color removal of waste water, and dosage reduction
Efficient water treatment composite flocculant.
The technical scheme is that：
A kind of efficient water treatment composite flocculant of the present invention, by aluminium salt component, molysite component, helps solidifying component, You Jixu
Solidifying component and activated silicic acid group are grouped as, and aluminium salt component is using aluminium polychloride, polyaluminium sulfate, poly- phosphorus aluminium chloride, polymerization silicon
One or more kinds of arbitrary combinations of sour aluminium, aluminium chloride, aluminum sulfate, usage amount are 10~40 parts in parts by weight；Molysite
Component is using bodied ferric sulfate, one or more kinds of arbitrary groups of poly-ferric chloride, ferrous sulfate, ferric sulfate, iron chloride
It closes, usage amount is 1~30 part in parts by weight；Help solidifying component using one kind of carbide slag, magnesium hydroxide, magnesium chloride, zinc chloride
Or two or more arbitrary combinations, usage amount are 1~10 part in parts by weight；Organic-flocculation component uses polyacrylamide, gathers
One or more kinds of arbitrary combinations of dimethyl diallyl ammonium chloride, polystyrene sodium sulfonate, dicyandiamide formaldehyde resin,
Usage amount is 1~10 part in parts by weight；Activated silicic acid component usage amount is 1~10 part in parts by weight.
Preferably, it is 20~30 parts in parts by weight that the aluminium salt component, which uses aluminium polychloride, usage amount,.
Preferably, the molysite group is divided into bodied ferric sulfate, usage amount is 5~20 parts in parts by weight.
Preferably, described helps solidifying group to be divided into carbide slag, usage amount is 5~10 parts in parts by weight.
Preferably, the organic-flocculation group is divided into polydimethyl diallyl ammonium chloride, usage amount is in parts by weight
It is 1~5 part.
Its main component of carbide slag is calcium hydroxide, and the adsorption capacity of the addition enhancing flocculant of calcium and magnesium salt is effectively improved
Its flocculating effect, increases flco density, and the addition of organic-flocculation component can improve flocculate sinking speed.
Composite flocculation agent in use, can be added directly, or dissolving tank is first added, quality is dense by the composite flocculation agent of the present invention
Degree is 1~30%, stirs 3~30min, is added to reaction tank with pump, adds 0.1~3 kilogram in water per ton, be added to pending
It after wastewater disposal basin, stirs 5~30 minutes, after the completion of reaction, solid-liquor separation can be carried out using air supporting or precipitation according to field condition.
It, being capable of, formation alum strong in conjunction with aluminium salt adsorption capacity when the efficient water treatment composite flocculant of the present invention is used in combination
The close precipitation of Hua great, matter is fast and iron salt hydrolysis speed is fast, alumen ustum is closely knit, can effectively play aluminium salt and the synergistic effect of molysite.
Specific implementation mode
Embodiment one：
Efficiently water treatment composite flocculant is：By 40 parts by weight of aluminium polychloride, 10 parts by weight of bodied ferric sulfate, carbide slag
5 parts by weight, 5 parts by weight of 1 parts by weight of polydimethyl diallyl ammonium chloride and activated silicic acid are configured to the composite flocculation of the present invention
Agent, and certain Pig raising wastewater is handled.It is 5 to take 100mL waste water to adjust pH, adds this example flocculant 150mg, and stirring is mixed
It is even, it is precipitated to clarification, then be detected.The turbidity removal rate of this example flocculant is 91.1%, percent of decolourization 83.6%, total phosphorus
Removal rate is up to 90.1%, total ammonia removal rate 47.8%, and the removal rate of COD is up to 47.6%, flocculant residual rate 14.9%.
Embodiment two：
Efficiently water treatment composite flocculant is：By 35 parts by weight of aluminium polychloride, 20 parts by weight of bodied ferric sulfate, carbide slag
5 parts by weight, 5 parts by weight of 1 parts by weight of polydimethyl diallyl ammonium chloride and activated silicic acid are configured to the composite flocculation of the present invention
Agent, and certain Pig raising wastewater is handled.It is 5 to take 100mL waste water to adjust pH, adds this example flocculant 150mg, and stirring is mixed
It is even, it is precipitated to clarification, then be detected.The turbidity removal rate of this example flocculant is 93.2%, percent of decolourization 87.3%, total phosphorus
Removal rate is up to 91.6%, total ammonia removal rate 47.5%, and the removal rate of COD is up to 48.5%, flocculant residual rate 14.3%.
Embodiment three：
Efficiently water treatment composite flocculant is：By 30 parts by weight of aluminium polychloride, 5.5 parts by weight of bodied ferric sulfate, chlorination
5 parts by weight of iron, 5.5 parts by weight of carbide slag, 5 parts by weight of 0.5 parts by weight of polydimethyl diallyl ammonium chloride and activated silicic acid are matched
The composite flocculation agent of the present invention is made, and certain Pig raising wastewater is handled.It is 4 to take 100mL waste water to adjust pH, adds this example
Flocculant 150mg, stirs and evenly mixs, and is precipitated to clarification, then be detected.The turbidity removal rate of this example flocculant is 87.6%,
Percent of decolourization is 80.9%, and total tp removal rate up to 86.4%, up to 41.9% wad a quilt with cotton by the removal rate of total ammonia removal rate 47.6%, COD
Solidifying agent residual rate 17.3%.
Example IV：
Efficiently water treatment composite flocculant is：By 20 parts by weight of aluminium polychloride, 7.5 parts by weight of bodied ferric sulfate, chlorination
0.5 parts by weight of iron, 5.5 parts by weight of carbide slag, 3 parts by weight of 1 parts by weight of polyacrylamide and activated silicic acid are configured to the present invention's
Composite flocculation agent, and certain Pig raising wastewater is handled.It is 5 to take 100mL waste water to adjust pH, adds this example flocculant 150mg,
It stirs and evenly mixs, is precipitated to clarification, then be detected.The turbidity removal rate of this example flocculant is 85.3%, and percent of decolourization is
80.1%, total tp removal rate is up to 84.7%, and total ammonia removal rate 46.5%, up to 40.1%, flocculant remains the removal rate of COD
Rate 17.7%.
Embodiment five：
Efficiently water treatment composite flocculant is：By 35 parts by weight of aluminium polychloride, 5.5 parts by weight of iron chloride, carbide slag 10
Parts by weight, 5 parts by weight of 0.5 parts by weight of polyacrylamide and activated silicic acid are configured to the multiple flocculant of the present invention, and to certain pig raising
Waste water is handled.It is 4 to take 100mL waste water to adjust pH, adds this example flocculant 150mg, stirs and evenly mixs, is precipitated to clarification,
It is detected again.The turbidity removal rate of this example flocculant is 90.7%, percent of decolourization 82.4%, and total tp removal rate is reachable
87.3%, total ammonia removal rate 47.1%, the removal rate of COD is up to 44.6%, flocculant residual rate 15.8%.
Embodiment six：
Efficiently water treatment composite flocculant is：By 30 parts by weight of aluminium polychloride, 7.5 parts by weight of bodied ferric sulfate, calcium carbide
10 parts by weight of slag, 5 parts by weight of 0.5 parts by weight of polydimethyl diallyl ammonium chloride and activated silicic acid are configured to answering for the present invention
Flocculant, and certain Pig raising wastewater is handled.It is 3 to take 100mL waste water to adjust pH, adds this example flocculant 150mg, stirs
Mixing is precipitated to clarification, then is detected.The turbidity removal rate of this example flocculant is 88.3%, percent of decolourization 82.1%, always
Tp removal rate is up to 86.7%, total ammonia removal rate 47.4%, and the removal rate of COD is up to 43.7%, flocculant residual rate 15.7%.
Embodiment seven：
Efficiently water treatment composite flocculant is：By 35 parts by weight of aluminium polychloride, 8 parts by weight of bodied ferric sulfate, iron chloride 2
Parts by weight, 10 parts by weight of carbide slag, 0.5 parts by weight of polyacrylamide, polydimethyl diallyl ammonium chloride 0.5wt% and activation
5 parts by weight of silicic acid, are configured to the multiple flocculant of the present invention, and handle certain Pig raising wastewater.Take 100mL waste water adjust pH be
5, this example flocculant 150mg is added, is stirred and evenly mixed, is precipitated to clarification, then be detected.The turbidity removal of this example flocculant
Rate is 90.3%, percent of decolourization 82.3%, and total tp removal rate is up to 89.6%, and total ammonia removal rate 46.7%, the removal rate of COD can
Up to 46.6%, flocculant residual rate 15.6%.
Embodiment eight：
Efficiently water treatment composite flocculant is：By 20 parts by weight of aluminium polychloride, 5 parts by weight of aluminium chloride, bodied ferric sulfate
7.5 parts by weight, 2.5 parts by weight of iron chloride, 5.5 parts by weight of carbide slag, 0.5 parts by weight of polyacrylamide, two allyl of poly dimethyl
5 parts by weight of 1 parts by weight of ammonium chloride and activated silicic acid, be configured to the present invention multiple flocculant, and to certain Pig raising wastewater at
Reason.It is 4 to take 100mL waste water to adjust pH, adds this example flocculant 150mg, stirs and evenly mixs, is precipitated to clarification, then be detected.
The turbidity removal rate of this example flocculant is 88.2%, percent of decolourization 81.7%, and up to 86.1%, total ammonia removes total tp removal rate
Rate 46.7%, the removal rate of COD is up to 40.9%, flocculant residual rate 16.5%.
One embodiment of the present of invention is described in detail above, but the content is only the preferable implementation of the present invention
Example should not be construed as limiting the practical range of the present invention.It is all according to all the changes and improvements made by the present patent application range
Deng within the patent covering scope that should all still fall within the present invention.
Claims (1)
1. a kind of efficient water treatment process, it is characterised in that use a kind of composite flocculation agent, composite flocculation agent is by aluminium salt component, iron
Salt component helps solidifying component, organic-flocculation component and activated silicic acid group to be grouped as, and the aluminium salt component uses aluminium polychloride,
Usage amount is 20~30 parts in parts by weight；The molysite group is divided into bodied ferric sulfate, and usage amount is 5~20 in parts by weight
Part；Described helps solidifying group to be divided into carbide slag, and usage amount is 5~10 parts in parts by weight；The organic-flocculation group is divided into poly- two
Methyl diallyl ammonium chloride, usage amount are 1~5 part in parts by weight；Activated silicic acid component usage amount in parts by weight be 1~
10 parts；
The efficient water treatment process is：Dissolving tank first is added in composite flocculation agent, mass concentration is 1~30%, stirring 3~
30min is added to reaction tank with pump, 0.1~3 kilogram, after being added to pending wastewater disposal basin is added in water per ton, stirring 5~30
Minute, after the completion of reaction, solid-liquor separation is carried out using air supporting or precipitation according to field condition.
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| CN105540797B true CN105540797B (en) | 2018-10-19 |
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| CN107162135A (en) * | 2017-05-27 | 2017-09-15 | 广东睿洁环保工程有限公司 | A kind of fast purification agent of cities and towns black and odorous water |
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| CN108178269A (en) * | 2017-12-07 | 2018-06-19 | 淮北市中芬矿山机器有限责任公司 | A kind of powdery flocculant |
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| CN108163948A (en) * | 2018-01-12 | 2018-06-15 | 常州华禹环保科技有限公司 | Poly-ferric chloride-PDMDAAC compound coagulants and preparation method thereof |
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| CN109052602B (en) * | 2018-09-05 | 2021-04-23 | 南京大学 | Natural polymeric flocculant for starch wastewater treatment and treatment method thereof |
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| CN112079590A (en) * | 2020-09-28 | 2020-12-15 | 武汉聚信创为科技有限公司 | Anti-mud agent and use method thereof |
| CN112939166A (en) * | 2021-01-29 | 2021-06-11 | 常州市振邦化工制造有限公司 | Flocculating agent for treating oil-containing sewage of delayed coking in petroleum refining |
| CN114314787A (en) * | 2021-12-31 | 2022-04-12 | 华融化学股份有限公司 | Turbidity removal clarifying agent and preparation method and application thereof |
| CN114988602A (en) * | 2022-05-26 | 2022-09-02 | 欣格瑞（山东）环境科技有限公司 | Coking wastewater purifying agent |
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| CN1289409C (en) * | 2004-12-21 | 2006-12-13 | 李迎来 | Mixed flocculant for treating waste water containing oil |
| US20080296232A1 (en) * | 2007-05-31 | 2008-12-04 | Paul Wegner | Wastewater clarifier and process |
| CN101704569B (en) * | 2009-11-19 | 2011-05-04 | 长安大学 | Flocculant for purifying emulsified oil-containing waste water and preparation method thereof |
| CN102115235A (en) * | 2009-12-31 | 2011-07-06 | 宋晓东 | Environment-friendly flocculating degreaser |
| CN101774731B (en) * | 2010-01-27 | 2012-11-07 | 四川大学 | Enhanced coagulation-gas stripping-membrane integration method and device for lightening membrane pollution |
| WO2012042530A1 (en) * | 2010-09-27 | 2012-04-05 | Tata Consultancy Services Limited | Apparatus for water purification |
| CN102126803B (en) * | 2011-04-22 | 2013-01-02 | 中国科学院生态环境研究中心 | Process for catalytic oxidation-compound flocculation integrated treatment of comprehensive waste water |
| CN102491465B (en) * | 2011-11-25 | 2013-05-22 | 亿利资源集团有限公司 | Flocculant and preparation method thereof |
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Inventor after: Ren Songjie Inventor after: Xiang Hai Inventor after: Zhou Lixin Inventor after: Li Wei Inventor after: Wang Kun Inventor before: Ren Songjie Inventor before: Zhou Lixin Inventor before: Li Wei Inventor before: Wang Kun |