CN103508523A - Water treatment composite flocculating agent and application thereof - Google Patents
Water treatment composite flocculating agent and application thereof Download PDFInfo
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- CN103508523A CN103508523A CN201210202885.4A CN201210202885A CN103508523A CN 103508523 A CN103508523 A CN 103508523A CN 201210202885 A CN201210202885 A CN 201210202885A CN 103508523 A CN103508523 A CN 103508523A
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- water treatment
- molysite
- treatment composite
- flocculation agent
- aluminum chloride
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Abstract
The invention belongs to the sewage treatment field, and especially relates to a water treatment composite flocculating agent and an application thereof. The flocculating agent is obtained by compounding a plurality of flocculating agents, and comprises 70-89wt% of polyaluminum chloride, 10-30wt% of an aluminum salt and 0.1-2wt% of an iron salt. The composite flocculating agent has the large strength characteristic of an inorganic flocculating agent, also has the bridge formation, network bashing, strong sweeping capability and large floc of an organic flocculating agent, and overcomes the disadvantages of low floc strength and large consumption of organic flocculating agents.
Description
Technical field
The invention belongs to sewage treatment area, particularly a kind of water treatment composite flocculant and application thereof.
Background technology
Magnetic separation is the technology that a kind of magnetic field suction providing by magnet is realized separating substances, belongs to physical partition method, is in the U.S., to grow up the beginning of the seventies in last century, and it is the magnetic impurity in separating mixture rapidly.In magnetic extraction and application waste water, the magnetic of impurity particle is carried out separation, for the particle of non magnetic in water or weak magnetic, utilizes magnetic inoculation technique can make them have magnetic.By the effect in external force magnetic field, magnetic suspended solids in waste water is separated, thereby reached the object of purifying waste water.Compare with ordinary methods such as sedimentation, filtrations, magnetic separation method has the series of advantages such as processing power is large, efficiency is high, consuming little energy, simple and compact device, it has not only been successfully applied to BF Gas Washing water, fume from steel making is purified liquid waste, the water purification of giving up of rolling effluent and sintering, and also rising aspect other trade effluent, municipal effluent and land for building water purification.
Chemical agent coagulation is the method for generally using in water technology.The method has less investment, takes up an area little, the feature such as working cost is low, wide adaptability.Along with the raising that water treatment is required, in adding of agent process, the normal method that adopts multiple flocculation agent combination to add meets the requirement to water quality.For confection solution, once adding the drawback that technique mainly exists is: the performance of medicament usefulness is not enough, dosage greatly, easily causes waste, generation secondary pollution.The technique in batches adding for medicament, exists the dispensing time to be difficult to control, and exists equally medicament can not give full play to usefulness, running cost increase, produces secondary pollution, and effluent index is unstable.
Summary of the invention
Object of the present invention provides a kind of water treatment composite flocculant.
Goal of the invention of the present invention is achieved through the following technical solutions.
, described flocculation agent forms by multiple flocculation agent is compound, and its composition is counted according to weight percent: polymerize aluminum chloride 70-89% aluminium salt 10-30% molysite 0.1-2%.
The composition of described composite flocculation agent is counted according to weight percent: polymerize aluminum chloride 80-89% aluminium salt 10-20% molysite 0.1-1%.
Described aluminium salt is the mixture of Tai-Ace S 150, polymerization aluminum chlorate, aluminum chloride, polymerize aluminum chloride one of them or two or more arbitrary proportions.
Described molysite is the mixture of polyaluminum sulfate molysite, ferric sulfate, ferrous sulfate one of them or two or more arbitrary proportions.
The application of described a kind of water treatment composite flocculant in processing steel industry trade effluent, by following step, realize: according to the amount of every liter of 0.5-2.0 milligram, add in steel industry trade effluent, stir rapidly, add again appropriate coagulant aids, use magnetic separation technique to the flocculation group in water salvage, separation.
The present invention has following advantage:
1, action compensating.In the present invention, both bring into play the large feature of inorganic flocculating agent floc strength, and brought into play again organic polymer coargulator bridge formation, net and flutterred, roll up the feature that the ability of sweeping is strong, flco is large, overcome organic floculant floc strength low, the shortcoming that consumption is large simultaneously.
2, usefulness increases.Each medicament in composite flocculation agent of the present invention has adopted certain proportioning, and it is complementary that each flocculation agent has been given full play to usefulness, improved medicament service efficiency, reduced consumption, simplified administration apparatus, lowered running cost, has also lowered secondary pollution simultaneously.
3, in the present invention by determining certain formula and proportioning in flocculation agent, it can provide a large amount of complexing ions, and can strong adsorption colloidal particle, by absorption, crane span structure, crosslinked action, thereby makes coacervation of colloid.Also there is physicochemical change simultaneously, in and the electric charge on colloidal particle and suspended substance surface, reduced δ current potential, make colloidal particle become mutually and inhale from original repelling each other, destroyed micelle stability, colloidal particle are collided mutually, thereby form cotton-shaped coagulating sedimentation, have adsorptive power.At oily(waste)water, containing colourity, excellent containing composite flocculation agent effect in the waste water of high suspended matter, flocculation rate is fast, easily filters, and water rate is high.
4, the raw materials for production aluminum chloride in the present invention is cheap traditional inorganic flocculating agent, and source is wide, and production technique is simple, is conducive to Application and Development.
5, the multipolymer of aluminium salt and molysite is different from the mixture of two kinds of salt, and it is a kind of advantage that more effectively combines PAC and ferric sulfate, has strengthened the flocculation agent that goes turbid effect.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
Embodiment mono-
The simultaneous test of the present invention and prior art is as follows:
One, under the equal water yield, chemical feeding quantity, reaction times and stirring intensity, the speed that the more common PAC medicament flocculation of admixture composite flocculation agent of the present invention forms alumen ustum is fast, and flocculation group is closely knit, and particle is large, be conducive to the absorption of disk to floc sedimentation in follow-up unit, better remove turbid rate.
Two, utilize magnetic separation technique to process certain steel mill's hot rolling sewage circulating water, wherein add respectively composite flocculation agent of the present invention and PAM, test-results is as follows:
Test explanation: composite flocculation agent of the present invention purifies certain steel mill's hot rolling sewage circulating water, water outlet good transmittance, visibility meter is high, is better than plant area's production line reuse standard.
Three, utilize magnetic separation technique to process certain steel mill's hot rolling sewage circulating water, minutes two groups, add common PAC flocculation agent+PAM in first group, add composite flocculation agent+PAM of the present invention in second group, through disk absorption, separation, test-results is as follows:
| Project | The water ratio (%) of slag after common PAC flocculation agent+PAM processes | The water ratio (%) of slag after composite flocculation agent+PAM processes |
| 1 | 96.3 | 94.6 |
| 2 | 94.7 | 95.2 |
| 3 | 95.8 | 94.8 |
| On average | 95.6 | 94.9 |
Test explanation: second group of medicament purifies certain steel mill's hot rolling sewage circulating water, through disk absorption, separation, the more common PAC flocculation agent of water ratio of slag is few 0.7%, thereby alleviates the operating load of magnetic presser.
Embodiment bis-
, described flocculation agent forms by multiple flocculation agent is compound, takes polymerize aluminum chloride 70% Tai-Ace S 150 29% ferrous sulfate 1%, adds 1L water and under the condition of rotating speed 300r/min, stirs 5 minutes, obtains.
Embodiment tri-
, described flocculation agent forms by multiple flocculation agent is compound, takes polymerize aluminum chloride 89% polymerization aluminum chlorate 10.8% ferric sulfate 0.2%, adds 1L water and under the condition of rotating speed 300r/min, stirs 5 minutes, obtains.
Embodiment tetra-
, described flocculation agent forms by multiple flocculation agent is compound, takes polymerize aluminum chloride 80% aluminum chloride 18.5% polyaluminum sulfate molysite 1.5%, adds 1L water and under the condition of rotating speed 300r/min, stirs 5 minutes, obtains.
Embodiment five
, described flocculation agent forms by multiple flocculation agent is compound, takes polymerize aluminum chloride 75% polymerize aluminum chloride 24% ferric sulfate 1%, adds 1L water and under the condition of rotating speed 300r/min, stirs 5 minutes, obtains.
Embodiment six
The application of water treatment composite flocculant of the present invention in processing steel industry trade effluent, by following step, realize: according to the amount of every liter of 0.5-2.0 milligram, add in steel industry trade effluent, stir rapidly, add again appropriate coagulant aids, use magnetic separation technique to the flocculation group in water salvage, separation.
Embodiments of the present invention are more than described, but the invention is not restricted to above embodiment.
Claims (6)
1. a water treatment composite flocculant, is characterized in that, described flocculation agent forms by multiple flocculation agent is compound, and its composition is counted according to weight percent: polymerize aluminum chloride 70-89% aluminium salt 10-30% molysite 0.1-2%.
2. a kind of water treatment composite flocculant claimed in claim 1, is characterized in that, the composition of described composite flocculation agent is counted according to weight percent: polymerize aluminum chloride 80-89% aluminium salt 10-20% molysite 0.1-1%.
3. a kind of water treatment composite flocculant described in claim 1 or 2, is characterized in that, described aluminium salt is the mixture of Tai-Ace S 150, polymerization aluminum chlorate, aluminum chloride, polymerize aluminum chloride one of them or two or more arbitrary proportions.
4. a kind of water treatment composite flocculant described in claim 1 or 2, is characterized in that, described molysite is the mixture of polyaluminum sulfate molysite, ferric sulfate, ferrous sulfate one of them or two or more arbitrary proportions.
5. a kind of water treatment composite flocculant claimed in claim 3, is characterized in that, described molysite is the mixture of polyaluminum sulfate molysite, ferric sulfate, ferrous sulfate one of them or two or more arbitrary proportions.
6. the application of a kind of water treatment composite flocculant claimed in claim 5 in processing steel industry trade effluent, it is characterized in that, by following step, realize: according to the amount of every liter of 0.5-2.0 milligram, add in steel industry trade effluent, stir rapidly, add again appropriate coagulant aids, use magnetic separation technique to the flocculation group in water salvage, separation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210202885.4A CN103508523A (en) | 2012-06-19 | 2012-06-19 | Water treatment composite flocculating agent and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210202885.4A CN103508523A (en) | 2012-06-19 | 2012-06-19 | Water treatment composite flocculating agent and application thereof |
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| Publication Number | Publication Date |
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| CN103508523A true CN103508523A (en) | 2014-01-15 |
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| CN201210202885.4A Pending CN103508523A (en) | 2012-06-19 | 2012-06-19 | Water treatment composite flocculating agent and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261544A (en) * | 2014-10-22 | 2015-01-07 | 天津亿利科能源科技发展股份有限公司 | Method for preparing inorganic granular flocculant used in oil field |
| CN105923913A (en) * | 2016-06-20 | 2016-09-07 | 江门市江海区炜洁净水材料有限公司 | Water purifying agent for mine waste water treatment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0261019A1 (en) * | 1986-09-19 | 1988-03-23 | Rhone-Poulenc Chimie | Water treatment process |
| JPH03109993A (en) * | 1989-09-26 | 1991-05-09 | Wakayama Pref Gov Chiyuushiyou Kigyo Shinko Koushiya | Method for removing fluorine from aqueous solution containing fluorine |
| CN1074198A (en) * | 1992-01-10 | 1993-07-14 | 成都市青羊区橡树林能源研究所 | Handle the permanent magnet separation of steel plant wastewater |
| CN1187467A (en) * | 1997-12-11 | 1998-07-15 | 朱正培 | Improved compound flocculating agent |
| CN1406877A (en) * | 2001-09-05 | 2003-04-02 | 武汉墨金经济发展有限公司 | Water purifying agent |
| CN1482074A (en) * | 2003-07-25 | 2004-03-17 | 深圳市金朝阳环保科技有限公司 | Organic sewage treatment complexing agent |
-
2012
- 2012-06-19 CN CN201210202885.4A patent/CN103508523A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0261019A1 (en) * | 1986-09-19 | 1988-03-23 | Rhone-Poulenc Chimie | Water treatment process |
| JPH03109993A (en) * | 1989-09-26 | 1991-05-09 | Wakayama Pref Gov Chiyuushiyou Kigyo Shinko Koushiya | Method for removing fluorine from aqueous solution containing fluorine |
| CN1074198A (en) * | 1992-01-10 | 1993-07-14 | 成都市青羊区橡树林能源研究所 | Handle the permanent magnet separation of steel plant wastewater |
| CN1187467A (en) * | 1997-12-11 | 1998-07-15 | 朱正培 | Improved compound flocculating agent |
| CN1406877A (en) * | 2001-09-05 | 2003-04-02 | 武汉墨金经济发展有限公司 | Water purifying agent |
| CN1482074A (en) * | 2003-07-25 | 2004-03-17 | 深圳市金朝阳环保科技有限公司 | Organic sewage treatment complexing agent |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261544A (en) * | 2014-10-22 | 2015-01-07 | 天津亿利科能源科技发展股份有限公司 | Method for preparing inorganic granular flocculant used in oil field |
| CN104261544B (en) * | 2014-10-22 | 2016-07-06 | 天津亿利科能源科技发展股份有限公司 | A kind of preparation method of oil field inorganic particle flocculant |
| CN105923913A (en) * | 2016-06-20 | 2016-09-07 | 江门市江海区炜洁净水材料有限公司 | Water purifying agent for mine waste water treatment |
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Application publication date: 20140115 |