CN103191684B - Preparation method and application of polymeric phosphato aluminum iron chloride coagulant - Google Patents
Preparation method and application of polymeric phosphato aluminum iron chloride coagulant Download PDFInfo
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- CN103191684B CN103191684B CN201310154293.4A CN201310154293A CN103191684B CN 103191684 B CN103191684 B CN 103191684B CN 201310154293 A CN201310154293 A CN 201310154293A CN 103191684 B CN103191684 B CN 103191684B
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Abstract
The invention discloses a preparation method and application of a polymeric phosphato aluminum iron chloride coagulant under a micro-wave irradiation condition. The method comprises the steps of: based on aluminum polychloride and FeCl3.6H2O as main materials, adding water to dissolve and evenly mixing; then adding disodium hydrogen phosphate solution to adjust the molar ratio of phosphorus to ferro-aluminum; putting into a microwave reactor to radiate and heat, so as to polymerize under a microwave condition; taking out from the microwave reactor; adding NaOH solution to adjust the alkalization degree and continuing to react for a period of time under the condition of a water bath; and finally curing at normal temperature to obtain polymeric phosphato aluminum iron chloride. The prepared polymeric phosphato aluminum iron chloride coagulant can be widely applied to treatment of source water, and treatment of industrial wastewater and domestic wastewater; and the function is superior to that of common aluminum polychloride and ferric polychloride. The polymeric phosphato aluminum iron chloride disclosed by the invention can effectively reduce the turbidity and UV254 of a water body in feedwater treatment; and the polymeric phosphato aluminum chloride iron disclosed by the invention has good removal effect on the turbidity, chemical oxygen demand (COD) and total phosphorus in domestic wastewater and industrial wastewater.
Description
Technical field
The invention belongs to chemical and environment-friendly engineering technical field, the preparations and applicatio of poly-phosphorus aluminum ferric chloride flocculant under being specifically related to a kind of microwave condition.
Background technology
In water-treatment technology field, flocculation is one of most important treatment step, and it has, and technique is simple, processing cost is low, high treating effect, is widely used in water treatment.
Poly-phosphorus aluminium chloride ferrum is a kind of efficient inorganic high polymer coagulant grown up in the last few years, because it has possessed the advantage of aluminium polychloride and poly-ferric chloride simultaneously, and after using it for water treatment, effluent color dilution is significantly less than the colourity after poly-ferric chloride and bodied ferric sulfate process, and the residual quantity of aluminium will lower than remaining after aluminium polychloride process.This poly-phosphorus aluminium chloride ferrum has the very high degree of polymerization simultaneously, catches volume sweep ability so can well play adsorption bridging and net.Industrial Wastewater Treatment, sanitary sewage disposal and water supply plant can be widely used in in the middle of the process of source water.
The preparation technology of poly-phosphorus aluminium chloride ferrum is ripe gradually for many years, but synthetic route is various, traditional synthesis technique still has the place that can improve, as: generated time is longer, energy consumption is higher, advocate the situation of energy-saving and emission-reduction energetically at current national under, selecting the method for the poly-phosphorus aluminium chloride ferrum of low energy consumption preparation, is researcher's urgent problem in this area.And microwave is as a kind of novel new and high technology, have simple to operate, the advantages such as heating is fast, the time of causing is short, energy-efficient, meet national environmental protection strategic requirement, there is potential wide application prospect
Summary of the invention
An object of the present invention is, application cost high deficiency long for the poly-phosphorus aluminum ferric chloride flocculant reaction time of preparation in existing water technology, provide that a kind of generated time is short, stable performance, poly-phosphorus aluminum ferric chloride flocculant that water treatment efficiency is good preparation method.
The present invention gathers the preparation method of phosphorus aluminum ferric chloride flocculant, comprises the steps:
(1) under room temperature, by a certain amount of liquid aluminium polychloride or the solid polyaluminium chloride aqueous solution and FeCl
3the aqueous solution is placed in container, and stirs 3 ~ 15min, then adds Na
2hPO
42H
2the aqueous solution of O, continues stirring 3 ~ 15min and makes it mix;
(2) container step (1) being equipped with mixed solution is placed in the middle of microwave reactor, open microwave, under 20 ~ 100W microwave condition, make temperature rise to rapidly reaction temperature 40 ~ 120 DEG C, then make microwave power control at 20 ~ 60W, keep reaction temperature certain, reaction 3 ~ 15min;
(3) after completion of the reaction container is taken out in microwave reactor, then under being placed in 30 ~ 60 DEG C of water bath condition, adding a certain amount of NaOH solution and regulate basicity, continue reaction 2 ~ 24h;
(4) after having reacted, by product slaking 2 ~ 24h at normal temperatures, the poly-phosphorus aluminum ferric chloride flocculant of rufous is obtained.
Specifically, in step (1), Al/Fe mol ratio controls between 0.1 ~ 8.0; P/ (Al+Fe) mol ratio controls between 0.1 ~ 0.6.
In step (3), basicity controls between 0.1 ~ 0.6.
Two of object of the present invention is to provide said method to prepare the application of poly-phosphorus aluminum ferric chloride flocculant, i.e. turbidity and UV in water supply process
254removal, for reducing turbidity, COD and the total phosphorus in water body in sanitary sewage and factory effluent.
Compared to prior art, beneficial effect of the present invention be embodied in following some:
(1) preparation method of the present invention adopts microwave radiation polymerization technique, and microwave can promote polymerisation, and reaction system quick heating, significantly can shorten generated time.
(2), under microwave condition, uneven shortcoming of being heated can be overcome in aqueous solution heating process, and reactant character is more stable, not perishable.
(3) flocculant prepared of the inventive method is of many uses, can be widely used in the middle of Water purification and wastewater treatment, have treatment effect good, the feature that floc settling velocity is fast.
Detailed description of the invention
Below in conjunction with specific experiment example, the present invention is described in further detail.
Embodiment 1:
(1), under room temperature, the PAC(aluminium polychloride of 6 parts by volume 2mol/L is got) FeCl of the aqueous solution and 4 parts by volume 2mol/L
3the aqueous solution is placed in container, stirs 3min, then adds the Na of 2mol/L
2hPO
42H
2the O aqueous solution, the mol ratio P/ (Al+Fe) regulating phosphorus and ferro-aluminum is 0.2, continues to stir 10min and makes it mix;
(2) container is placed in microwave reactor, opens microwave, under 100W microwave condition, make temperature rise to rapidly reaction temperature 60 DEG C, then reduce microwave power to 40W, make reaction temperature control at 60 DEG C of polymerisation 8min;
(3) after being taken out from microwave reactor by container, the NaOH solution adding 4mL2mol/L under 50 DEG C of water bath condition regulates basicity, continues reaction 4h;
(4) after having reacted, by product slaking 8h at normal temperatures;
(5) the poly-phosphorus aluminium chloride ferrum that outward appearance is rufous liquid, basicity is 0.42 is obtained.
Embodiment 2:
(1), under room temperature, the PAC(aluminium polychloride of 5 parts by volume 2mol/L is got) FeCl of the aqueous solution and 4 parts by volume 3mol/L
3the aqueous solution is placed in container, stirs 3min, then adds the Na of 2mol/L
2hPO
42H
2the O aqueous solution, the mol ratio P/ (Al+Fe) regulating phosphorus and ferro-aluminum is 0.3, continues to stir 10min and makes it mix;
(2) container is placed in microwave reactor, opens microwave, under 100W microwave condition, make temperature rise to rapidly reaction temperature 60 DEG C, then reduce microwave power to 40W, make reaction temperature control at 50 DEG C of polymerisation 10min;
(3) after being taken out from microwave reactor by container, the NaOH solution adding 4mL2mol/L under 60 DEG C of water bath condition regulates basicity, continues reaction 4h;
(4) after having reacted, by product slaking 10h at normal temperatures;
(5) the poly-phosphorus aluminium chloride ferrum that outward appearance is rufous liquid, basicity is 0.51 is obtained.
Product of the present invention is applied to the embodiment of water treatment:
The product P PFAC(of the embodiment of the present invention 1 and embodiment 2 is gathered phosphorus aluminum ferric chloride flocculant), industrial PFC, industrial PAC be used for sanitary sewage turbidity, COD removal, coagulation effect is as shown in table 1:
Table 1
| COD clearance (%) | Turbidity removal rate (%) | |
| Embodiment 1 product | 83.4 | 97.6 |
| Embodiment 2 product | 89.2 | 93.9 |
| Industry PFC | 68.6 | 74.3 |
| Industry PAC | 73.1 | 82.6 |
As seen from Table 1, the poly-phosphorus aluminum ferric chloride flocculant prepared of the inventive method to the clearance of sanitary sewage turbidity, COD apparently higher than industrial PFC and industrial PAC.
Claims (3)
1. a preparation method for poly-phosphorus aluminum ferric chloride flocculant, is characterized in that comprising the steps:
(1) under room temperature, by a certain amount of liquid aluminium polychloride or the solid polyaluminium chloride aqueous solution and FeCl
3the aqueous solution is placed in container, and stirs 3 ~ 15min, then adds Na
2hPO
42H
2the aqueous solution of O, continues stirring 3 ~ 15min and makes it mix;
(2) container step (1) being equipped with mixed solution is placed in the middle of microwave reactor, open microwave, under 20 ~ 100W microwave condition, make temperature rise to rapidly reaction temperature 40 ~ 120 DEG C, then microwave power is made to control at 20 ~ 60W, keep reaction temperature certain, reaction 3 ~ 15min;
(3) after completion of the reaction container is taken out in microwave reactor, then under being placed in 30 ~ 60 DEG C of water bath condition, adding a certain amount of NaOH solution and regulate basicity, continue reaction 2 ~ 24h;
(4) after having reacted, by product slaking 2 ~ 24h at normal temperatures, the poly-phosphorus aluminum ferric chloride flocculant of rufous is obtained.
2. gather the preparation method of phosphorus aluminum ferric chloride flocculant according to claim 1, it is characterized in that: in step (1), Al/Fe mol ratio controls between 0.1 ~ 8.0; P/ (Al+Fe) mol ratio controls between 0.1 ~ 0.6.
3. gather the preparation method of phosphorus aluminum ferric chloride flocculant according to claim 1, it is characterized in that: in step (3), basicity controls between 0.1 ~ 0.6.
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| CN103191684B true CN103191684B (en) | 2015-02-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106480314A (en) * | 2015-11-25 | 2017-03-08 | 湖南恒光化工有限公司 | A kind of Application way of sulfuric acid iron ore relieving haperacidity waste residue |
| CN109250795B (en) * | 2018-09-21 | 2022-06-24 | 六盘水师范学院 | Method for rapidly preparing poly-silicate aluminum ferric sulfate by one-pot microwave radiation method |
| CN110615422B (en) * | 2019-09-26 | 2021-02-09 | 常熟理工学院 | Preparation method of poly-phosphorus ferric chloride aluminum flocculant |
| CN115520946A (en) * | 2022-04-11 | 2022-12-27 | 江苏世邦生物工程科技有限公司 | Biological composite flocculant for heavy metal ion adsorption and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1515507A (en) * | 2003-01-08 | 2004-07-28 | 中国科学院沈阳应用生态研究所 | Ecological safety composite type iron system high-effective flocculating agent |
| CN101172596A (en) * | 2007-10-10 | 2008-05-07 | 广西民族大学 | Method for rapid synthesis of aluminum orthophosphate salt polyalcohol |
| CN101704568A (en) * | 2009-11-06 | 2010-05-12 | 江苏科技大学 | PPAC and PFPS coagulant, preparation method and application thereof |
| US8147695B2 (en) * | 2007-06-22 | 2012-04-03 | I. Kruger Inc. | Method of removing phosphorus from wastewater |
| CN102807275A (en) * | 2012-07-16 | 2012-12-05 | 三明学院 | Modified cellulose wastewater treatment flocculating agent and preparation method thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1515507A (en) * | 2003-01-08 | 2004-07-28 | 中国科学院沈阳应用生态研究所 | Ecological safety composite type iron system high-effective flocculating agent |
| US8147695B2 (en) * | 2007-06-22 | 2012-04-03 | I. Kruger Inc. | Method of removing phosphorus from wastewater |
| CN101172596A (en) * | 2007-10-10 | 2008-05-07 | 广西民族大学 | Method for rapid synthesis of aluminum orthophosphate salt polyalcohol |
| CN101704568A (en) * | 2009-11-06 | 2010-05-12 | 江苏科技大学 | PPAC and PFPS coagulant, preparation method and application thereof |
| CN102807275A (en) * | 2012-07-16 | 2012-12-05 | 三明学院 | Modified cellulose wastewater treatment flocculating agent and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 聚合磷硫酸铁制备及净化含铅废水的试验研究;刘峙嵘等;《黄金》;20071231;第28卷(第4期);第55-59页 * |
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