CN110156121A - A kind of high efficiency composition magnetic flocculant and preparation method thereof - Google Patents
A kind of high efficiency composition magnetic flocculant and preparation method thereof Download PDFInfo
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- CN110156121A CN110156121A CN201810256685.4A CN201810256685A CN110156121A CN 110156121 A CN110156121 A CN 110156121A CN 201810256685 A CN201810256685 A CN 201810256685A CN 110156121 A CN110156121 A CN 110156121A
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- high efficiency
- efficiency composition
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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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
-
- 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 invention discloses a kind of high efficiency composition magnetic flocculant and preparation method thereof, the raw material comprising following weight: aluminium polychloride 40-50%, bodied ferric sulfate 15-20%, ferric trichloride 10-20%, polydimethyl diallyl ammonium chloride 5-10%, magnetic powder 10-15%.Present invention is generally directed to be to have already passed through biochemical treatment but to reach the industrial wastewater of new national emission standard, sanitary sewage and to handle the various water based on suspended matter, have the characteristics that lower cost of investment, economic operating cost, generate that sludge quantity is less, treated that water outlet can reach the standard requirements lower than 20mg/L by a kind of high efficiency composition magnetic flocculant of the present invention and preparation method thereof.
Description
Technical field
The present invention relates to water-treatment technology fields more particularly to a kind of high efficiency composition magnetic flocculant and preparation method thereof.
Background technique
Flocculation sedimentation technique is widely used during Water purification is with drainage sunk well.Currently, stone both domestic and external
In the wastewater treatment of a variety of industries such as change, steel, metallurgy, papermaking, food, printing and dyeing, weaving and brewing, flocculent precipitation is used
Account for about 55%~75%, Water purification almost 100% uses flocculent precipitation as water purification means.But mostly since floccule body is heavy
The problem of shallow lake speed is slower, and processing system is caused to take up a large area.
Magnetic flocculation technology is made using the ion polarity of magnetic powder dirty in water by loading magnetic powder while adding flocculant
Dye object, magnetic powder, coagulant are combined as a whole, and are formed with magnetic compound wadding body, since magnetic powder has aggravated the weight of compound wadding body
Amount can make wadding body rapid subsidence realize that solid-liquid efficiently separates, to improve pollutant removal.Magnetic flocculation technology it is another
One feature is the recycling that magnetic powder can be realized by rotary drum, to reduce operating cost.The core of magnetic flocculation technology is magnetic
Property flocculant production, but to compare effect with common flocculant not prominent enough for magnetic flocculant currently on the market, makes magnetic wadding
The popularization of solidifying agent is slower, necessarily has a good application prospect so developing a kind of efficient magnetic flocculant.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of high efficiency composition magnetic flocculant and its preparations
Method, the floccule body of formation has the characteristics that body is big and structure is closely knit, is easy to water body separation, water treatment efficiency is good.
A kind of high efficiency composition magnetic flocculant proposed by the present invention, the raw material comprising following weight: polymerization
Aluminium chloride 40-50%, bodied ferric sulfate 15-20%, ferric trichloride 10-20%, polydimethyl diallyl ammonium chloride 5-10%, magnetic powder
10-15%。
Preferably, the aluminum oxide content in the aluminium polychloride is 30-50%, and the basicity of aluminium polychloride is
60-80%, insoluble matter 0.01-0.3%.
Preferably, all iron content of the bodied ferric sulfate is 11-25%, basicity 8-16%, insoluble matter 0.01-
0.3%。
Preferably, all iron content of the ferric trichloride is 96-99%, insoluble matter 0.1-1.5%.
Preferably, the polydimethyl diallyl ammonium chloride is white powder and molecular weight is in 10-30 ten thousand.
Preferably, the magnetic powder is nanoscale.
A kind of preparation method of high efficiency composition magnetic flocculant, method and step are as follows:
S1: aluminium polychloride, bodied ferric sulfate, ferric trichloride, poly dimethyl allyl are sequentially added in solid blender
Ammonium chloride is stirred mixing；
S2: continuing that magnetic powder is at the uniform velocity added into solid blender, and stir while adding, until magnetic powder is added completely into and stirs and evenly mixs
Afterwards up to flocculant.
Preferably, the stirring rate of the solid blender is 100-150r/min.
Preferably, the addition rate of the magnetic powder is 0.1-0.3kg/h.
The mechanism of action: aluminium polychloride, bodied ferric sulfate and iron chloride itself in formula are good inorganic flocculating agents,
Suspended particle and colloid in water can be made to be formed by compression double electric layer, absorption charge neutrality, bridge formation, the effect of catching of sediment net
Wadding body, but the wadding body formed is relatively small, sinking speed is slower.And polydimethyl diallyl ammonium chloride is organic polymer
Flocculant, the small wadding body that its effect of being caught by net generates inorganic flocculating agent becomes big flocculating body, to increase flocculation sedimentation
Effect.But the small wadding body or big flocculating body either formed above is all comparatively fluffy, the speed of precipitating is relatively slow, thus
Lead to sedimentation time shorter condition construction area is smaller, effect of settling is bad.And the addition of big density magnetic powder, magnetic can be made
Powder and wadding body combine the heavy wadding body formed using magnetic powder as subsiding center, to make floc settling velocity obviously accelerate, and magnetic
Powder part can also recycle, and the collaboration of aluminium polychloride, bodied ferric sulfate and iron chloride three is mainly manifested in and molysite is utilized
Wadding body is heavier and aluminium salt is discharged not colored advantage.
Compared with prior art, the beneficial effects of the present invention are: present invention is generally directed to be to have already passed through biochemical treatment
But it cannot reach the industrial wastewater of new national emission standard, sanitary sewage and to handle the various water based on suspended matter, tool
There is lower cost of investment, economic operating cost, generate the features such as sludge quantity is less, flocculates by a kind of high efficiency composition magnetism of the present invention
Treated that water outlet can reach standard requirements lower than 20mg/L for agent and preparation method thereof, and the present invention administers social environment
It is of great significance.
Specific embodiment
Combined with specific embodiments below the present invention is made further to explain.
The aluminum oxide content of aluminium polychloride used in the present invention is 40%, basicity 70%, insolubles content
It is 0.1%, all iron content of bodied ferric sulfate is 18%, basicity 12%, insoluble matter 0.1%, all iron content 98% of ferric trichloride,
Insoluble matter 0.3%, polydimethyl diallyl ammonium chloride molecular weight 200,000, magnetic powder are nanoscale.
Embodiment 1
A kind of high efficiency composition magnetic flocculant, the raw material comprising following weight: aluminium polychloride 50%, polymerised sulphur
Sour iron 20%, ferric trichloride 10%, polydimethyl diallyl ammonium chloride 5%, magnetic powder 15%.
Preparation method are as follows:
S1: aluminium polychloride, bodied ferric sulfate, ferric trichloride, poly dimethyl allyl are sequentially added in solid blender
Ammonium chloride is stirred mixing；
S2: continuing that magnetic powder is at the uniform velocity added into solid blender, and stir while adding, until magnetic powder is added completely into and stirs and evenly mixs
Afterwards up to flocculant.
Wherein the stirring rate of solid blender is 100r/min, and the addition rate of magnetic powder is 0.1kg/h.
The above-mentioned resulting flocculant of 30mg/L is added, in the dyeing waste water of suspended matter 200mg/L with 250r/min's
Revolving speed stirs 3min, settles 10min, and the suspension content in treated water is 14mg/L, reaches national grade one discharge standard.
Embodiment 2
A kind of high efficiency composition magnetic flocculant, the raw material comprising following weight: aluminium polychloride 45%, polymerised sulphur
Sour iron 15%, ferric trichloride 20%, polydimethyl diallyl ammonium chloride 10%, magnetic powder 10%.
Preparation method are as follows:
S1: aluminium polychloride, bodied ferric sulfate, ferric trichloride, poly dimethyl allyl are sequentially added in solid blender
Ammonium chloride is stirred mixing；
S2: continuing that magnetic powder is at the uniform velocity added into solid blender, and stir while adding, until magnetic powder is added completely into and stirs and evenly mixs
Afterwards up to flocculant.
Wherein the stirring rate of solid blender is 100r/min, and the addition rate of magnetic powder is 0.1kg/h.
The above-mentioned resulting flocculant of 35mg/L is added, in the dyeing waste water of suspended matter 186mg/L with 250r/min's
Revolving speed stirs 3min, settles 10min, and the suspension content in treated water is 16mg/L, reaches national grade one discharge standard.
Embodiment 3
A kind of high efficiency composition magnetic flocculant, the raw material comprising following weight: aluminium polychloride 40%, polymerised sulphur
Sour iron 18%, ferric trichloride 20%, polydimethyl diallyl ammonium chloride 10%, magnetic powder 12%.
Preparation method are as follows:
S1: aluminium polychloride, bodied ferric sulfate, ferric trichloride, poly dimethyl allyl are sequentially added in solid blender
Ammonium chloride is stirred mixing；
S2: continuing that magnetic powder is at the uniform velocity added into solid blender, and stir while adding, until magnetic powder is added completely into and stirs and evenly mixs
Afterwards up to flocculant.
Wherein the stirring rate of solid blender is 100r/min, and the addition rate of magnetic powder is 0.1kg/h.
The above-mentioned resulting flocculant of 30mg/L is added, in the dyeing waste water of suspended matter 155mg/L with 250r/min's
Revolving speed stirs 3min, settles 10min, and the suspension content in treated water is 17mg/L, reaches national grade one discharge standard.
Embodiment 4
A kind of high efficiency composition magnetic flocculant, the raw material comprising following weight: aluminium polychloride 48%, polymerised sulphur
Sour iron 16%, ferric trichloride 15%, polydimethyl diallyl ammonium chloride 8%, magnetic powder 13%.
Preparation method are as follows:
S1: aluminium polychloride, bodied ferric sulfate, ferric trichloride, poly dimethyl allyl are sequentially added in solid blender
Ammonium chloride is stirred mixing；
S2: continuing that magnetic powder is at the uniform velocity added into solid blender, and stir while adding, until magnetic powder is added completely into and stirs and evenly mixs
Afterwards up to flocculant.
Wherein the stirring rate of solid blender is 100r/min, and the addition rate of magnetic powder is 0.1kg/h.
The above-mentioned resulting flocculant of 20mg/L is added, in the dyeing waste water of suspended matter 118mg/L with 250r/min's
Revolving speed stirs 3min, settles 10min, and the suspension content in treated water is 10mg/L, reaches national grade one discharge standard.
Embodiment 5
A kind of high efficiency composition magnetic flocculant, the raw material comprising following weight: aluminium polychloride 46%, polymerised sulphur
Sour iron 18%, ferric trichloride 13%, polydimethyl diallyl ammonium chloride 9%, magnetic powder 14%.
Preparation method are as follows:
S1: aluminium polychloride, bodied ferric sulfate, ferric trichloride, poly dimethyl allyl are sequentially added in solid blender
Ammonium chloride is stirred mixing；
S2: continuing that magnetic powder is at the uniform velocity added into solid blender, and stir while adding, until magnetic powder is added completely into and stirs and evenly mixs
Afterwards up to flocculant.
Wherein the stirring rate of solid blender is 100r/min, and the addition rate of magnetic powder is 0.1kg/h.
The above-mentioned resulting flocculant of 25mg/L is added, in the dyeing waste water of suspended matter 130mg/L with 250r/min's
Revolving speed stirs 3min, settles 10min, and the suspension content in treated water is 18mg/L, reaches national grade one discharge standard.
Comparative example 1
In the coal chemical industry sewage of suspended matter 130ml/L, interior certain producer's magnetic flocculant of ground of 25ml is added, with 250r/min's
Revolving speed stirs 3min, settles 10min, aqueous suspension 24mg/L, only reaches national secondary discharge standard out.
Comparative example 2
In the coal chemical industry sewage of suspended matter 130ml/L, interior certain producer's aluminium polychloride of ground of 25ml is added, with 250r/min's
Revolving speed stirs 3min, settles 10min, aqueous suspension 39mg/L, only reaches state three grade emissioning standard out.
From the foregoing, it will be observed that the resulting high efficiency composition magnetic flocculant of the application is marked to after wastewater treatment up to country-level discharge
It is quasi-, hence it is evident that better than the magnetic flocculant and aluminium polychloride of the production of certain producer on the market.
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 (9)
1. a kind of high efficiency composition magnetic flocculant, which is characterized in that the raw material comprising following weight: polyaluminium
Aluminium 40-50%, bodied ferric sulfate 15-20%, ferric trichloride 10-20%, polydimethyl diallyl ammonium chloride 5-10%, magnetic powder 10-
15%。
2. a kind of high efficiency composition magnetic flocculant according to claim 1, which is characterized in that in the aluminium polychloride
Aluminum oxide content is 30-50%, and the basicity of aluminium polychloride is 60-80%, insoluble matter 0.01-0.3%.
3. a kind of high efficiency composition magnetic flocculant according to claim 1, which is characterized in that the bodied ferric sulfate it is complete
Iron content is 11-25%, basicity 8-16%, insoluble matter 0.01-0.3%.
4. a kind of high efficiency composition magnetic flocculant according to claim 1, which is characterized in that the full iron of the ferric trichloride
Content is 96-99%, insoluble matter 0.1-1.5%.
5. a kind of high efficiency composition magnetic flocculant according to claim 1, which is characterized in that two allyl of poly dimethyl
Ammonium chloride is white powder and molecular weight is in 10-30 ten thousand.
6. a kind of high efficiency composition magnetic flocculant according to claim 1, which is characterized in that the magnetic powder is nanoscale.
7. the preparation method of high efficiency composition magnetic flocculant according to claim 1-6, which is characterized in that method
Steps are as follows:
S1: aluminium polychloride, bodied ferric sulfate, ferric trichloride, poly dimethyl allyl are sequentially added in solid blender
Ammonium chloride is stirred mixing；
S2: continuing that magnetic powder is at the uniform velocity added into solid blender, and stir while adding, until magnetic powder is added completely into and stirs and evenly mixs
Afterwards up to flocculant.
8. the preparation method of high efficiency composition magnetic flocculant according to claim 7, which is characterized in that the solid stirring
The stirring rate of machine is 100-150r/min.
9. the preparation method of high efficiency composition magnetic flocculant according to claim 7, which is characterized in that the magnetic powder adds
Entering rate is 0.1-0.3kg/h.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810256685.4A CN110156121A (en) | 2018-03-27 | 2018-03-27 | A kind of high efficiency composition magnetic flocculant and preparation method thereof |
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| CN201810256685.4A CN110156121A (en) | 2018-03-27 | 2018-03-27 | A kind of high efficiency composition magnetic flocculant and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704218A (en) * | 2020-06-19 | 2020-09-25 | 德蓝水技术股份有限公司 | Special flocculating agent for industrial wastewater and preparation method thereof |
| CN114249485A (en) * | 2021-12-27 | 2022-03-29 | 上海电气电站环保工程有限公司 | Process for treating sludge in domestic sewage |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704218A (en) * | 2020-06-19 | 2020-09-25 | 德蓝水技术股份有限公司 | Special flocculating agent for industrial wastewater and preparation method thereof |
| CN114249485A (en) * | 2021-12-27 | 2022-03-29 | 上海电气电站环保工程有限公司 | Process for treating sludge in domestic sewage |
| CN114249485B (en) * | 2021-12-27 | 2024-02-20 | 上海电气电站环保工程有限公司 | Treatment process of sludge in domestic sewage |
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