CN106241997A - The preparation method of rock phosphate in powder red mud inulin composite flocculation agent and the method processing sewage - Google Patents
The preparation method of rock phosphate in powder red mud inulin composite flocculation agent and the method processing sewage Download PDFInfo
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- CN106241997A CN106241997A CN201610836351.5A CN201610836351A CN106241997A CN 106241997 A CN106241997 A CN 106241997A CN 201610836351 A CN201610836351 A CN 201610836351A CN 106241997 A CN106241997 A CN 106241997A
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- red mud
- inulin
- flocculation agent
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- 239000002367 phosphate rock Substances 0.000 title claims abstract description 72
- 239000000843 powder Substances 0.000 title claims abstract description 67
- 238000005189 flocculation Methods 0.000 title claims abstract description 54
- 229920001202 Inulin Polymers 0.000 title claims abstract description 53
- 230000016615 flocculation Effects 0.000 title claims abstract description 53
- 229940029339 inulin Drugs 0.000 title claims abstract description 53
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 50
- 239000002131 composite material Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- JYJIGFIDKWBXDU-MNNPPOADSA-N inulin Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)OC[C@]1(OC[C@]2(OC[C@]3(OC[C@]4(OC[C@]5(OC[C@]6(OC[C@]7(OC[C@]8(OC[C@]9(OC[C@]%10(OC[C@]%11(OC[C@]%12(OC[C@]%13(OC[C@]%14(OC[C@]%15(OC[C@]%16(OC[C@]%17(OC[C@]%18(OC[C@]%19(OC[C@]%20(OC[C@]%21(OC[C@]%22(OC[C@]%23(OC[C@]%24(OC[C@]%25(OC[C@]%26(OC[C@]%27(OC[C@]%28(OC[C@]%29(OC[C@]%30(OC[C@]%31(OC[C@]%32(OC[C@]%33(OC[C@]%34(OC[C@]%35(OC[C@]%36(O[C@@H]%37[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O%37)O)[C@H]([C@H](O)[C@@H](CO)O%36)O)[C@H]([C@H](O)[C@@H](CO)O%35)O)[C@H]([C@H](O)[C@@H](CO)O%34)O)[C@H]([C@H](O)[C@@H](CO)O%33)O)[C@H]([C@H](O)[C@@H](CO)O%32)O)[C@H]([C@H](O)[C@@H](CO)O%31)O)[C@H]([C@H](O)[C@@H](CO)O%30)O)[C@H]([C@H](O)[C@@H](CO)O%29)O)[C@H]([C@H](O)[C@@H](CO)O%28)O)[C@H]([C@H](O)[C@@H](CO)O%27)O)[C@H]([C@H](O)[C@@H](CO)O%26)O)[C@H]([C@H](O)[C@@H](CO)O%25)O)[C@H]([C@H](O)[C@@H](CO)O%24)O)[C@H]([C@H](O)[C@@H](CO)O%23)O)[C@H]([C@H](O)[C@@H](CO)O%22)O)[C@H]([C@H](O)[C@@H](CO)O%21)O)[C@H]([C@H](O)[C@@H](CO)O%20)O)[C@H]([C@H](O)[C@@H](CO)O%19)O)[C@H]([C@H](O)[C@@H](CO)O%18)O)[C@H]([C@H](O)[C@@H](CO)O%17)O)[C@H]([C@H](O)[C@@H](CO)O%16)O)[C@H]([C@H](O)[C@@H](CO)O%15)O)[C@H]([C@H](O)[C@@H](CO)O%14)O)[C@H]([C@H](O)[C@@H](CO)O%13)O)[C@H]([C@H](O)[C@@H](CO)O%12)O)[C@H]([C@H](O)[C@@H](CO)O%11)O)[C@H]([C@H](O)[C@@H](CO)O%10)O)[C@H]([C@H](O)[C@@H](CO)O9)O)[C@H]([C@H](O)[C@@H](CO)O8)O)[C@H]([C@H](O)[C@@H](CO)O7)O)[C@H]([C@H](O)[C@@H](CO)O6)O)[C@H]([C@H](O)[C@@H](CO)O5)O)[C@H]([C@H](O)[C@@H](CO)O4)O)[C@H]([C@H](O)[C@@H](CO)O3)O)[C@H]([C@H](O)[C@@H](CO)O2)O)[C@@H](O)[C@H](O)[C@@H](CO)O1 JYJIGFIDKWBXDU-MNNPPOADSA-N 0.000 title claims abstract description 29
- 239000010865 sewage Substances 0.000 title claims abstract description 26
- 238000012545 processing Methods 0.000 title description 4
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 230000004913 activation Effects 0.000 claims abstract description 38
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 35
- 238000002386 leaching Methods 0.000 claims abstract description 33
- 230000008569 process Effects 0.000 claims abstract description 25
- 239000002351 wastewater Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 230000004044 response Effects 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 6
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 5
- 239000000706 filtrate Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 230000008901 benefit Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
- 239000010452 phosphate Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 8
- 230000003311 flocculating effect Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 11
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 9
- 239000011574 phosphorus Substances 0.000 description 9
- 229910052698 phosphorus Inorganic materials 0.000 description 9
- 230000008859 change Effects 0.000 description 7
- 239000010842 industrial wastewater Substances 0.000 description 7
- 239000004575 stone Substances 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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
- C02F1/52—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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention provides preparation method and the method for process sewage of rock phosphate in powder red mud inulin composite flocculation agent, belongs to flocculant manufacture technology field.The preparation method of this flocculant comprises the step of: the high-temperature activation of rock phosphate in powder, red mud process to obtain ferro-aluminum leaching liquid, ferro-aluminum leaching liquid, the rock phosphate in powder of high-temperature activation and inulin hybrid reaction.The method utilizing this flocculant to process sewage is, regulation pH value of sewage water and temperature, by volume for waste water: composite flocculation agent is that the ratio of 100:2 3 adds composite flocculation agent in waste water and processes.The flocculant preparation method of the present invention is simple, and gained flocculant has preferable flocculating effect, and the clearance of COD reaches 95.0%, and the clearance of turbidity reaches 96.1%, and the clearance of colourity can reach 88.3%；Raw materials used rock phosphate in powder, red mud are garbage, can realize the bigger utilization of resource.
Description
[technical field]
The present invention relates to flocculant preparing technical field, be specifically related to a kind of rock phosphate in powder-red mud-inulin composite flocculation agent,
Its preparation method and the method utilizing this flocculant to carry out sewage disposal.
[background technology]
Along with the development of modern industry, derive series of environmental problems.Wherein water pollutes the attention having caused the whole world,
Administer water and pollute very urgent.Flocculation process is the most universal in the application solving water pollution, and wherein the performance of flocculant plays pass
Key effect.Developing a kind of efficient, practical, cheap, nontoxic flocculant is inevitable trend.Inorganic-natural organic composite flocculates
Agent becomes the study hotspot of current water treatment field because having efficient flocculating performance.Inorganic flocculating agent is mainly by ferro-aluminum magnesium silicon system
Prepare Deng inorganic substances, and these raw materials can obtain from mineral.Containing multiple units such as calcium, magnesium, aluminum, ferrum, silicon in rock phosphate in powder
Element can be as flocculant raw material.China's rock phosphate in powder total amount is enriched, but the rock phosphate in powder of more than 80% belongs to mid low grade phosphate rock, it is impossible to
Directly apply to commercial production.Aluminum processed is the pillar industry of Bose Region, produces substantial amounts of while obtaining abundant income
Waste red mud residues.These waste residues bring serious pollution problem.Accordingly, it is contemplated that using the rock phosphate in powder of middle-low grade and red mud as
Raw material, commercially available inulin synthesizes composite flocculation agent, not only realizes the recycling of waste resource, moreover it is possible to sending out for water technology
Exhibition provides a kind of new selection.
[summary of the invention]
The goal of the invention of the present invention is: for the problem of above-mentioned existence, it is provided that a kind of rock phosphate in powder-red mud-inulin is combined
Flocculant and preparation method thereof, the preparation method of this flocculant is simple, and gained flocculant has preferable flocculating effect, COD's
Clearance reaches 95.0%, and the clearance of turbidity reaches 96.1%, and the clearance of colourity can reach 88.3%；And raw materials used phosphorus
Ore, red mud are garbage, can realize the bigger utilization of resource.
To achieve these goals, the technical solution used in the present invention is as follows:
The preparation method of a kind of rock phosphate in powder-red mud-inulin composite flocculation agent, comprises the following steps:
(1) high-temperature activation of rock phosphate in powder: rock phosphate powder was broken into the fine powder of 100-150 mesh sieve；Take the phosphorus ore after sieving
Stone fine powder, in crucible, is incubated 4-6h at a temperature of 600-800 DEG C, it is carried out high-temperature activation；
(2) process of red mud: with drying baker, red mud is dried to moisture content less than 5%, then pulverized, ground to form
The red mud fine powder of 100-150 mesh sieve；Take red mud fine powder and H+Concentration be the acid solution of 6-10mol/L be 5-7:1 according to solid-to-liquid ratio
Mix in a reservoir, be placed in reacting by heating in the thermostat water bath that temperature is 80-90 DEG C the most together, take out after question response 2-3h
And filtered while hot, gained filtrate is ferro-aluminum leaching liquid；
(3) preparation of composite flocculation agent: be 7-according to weight ratio by ferro-aluminum leaching liquid, the rock phosphate in powder of high-temperature activation and inulin
11:7-11:3-5 mixing carries out reacting and i.e. obtains described rock phosphate in powder-red mud-inulin composite flocculation agent.
More preferably, owing to rock phosphate powder containing the many kinds of substances such as phosphorus pentoxide, silicon dioxide, calcium oxide, magnesium oxide,
Respective feature is different, therefore when rock phosphate powder being carried out high-temperature activation in described step (1), uses the mode of temperature programmed control to heat up
To 600-800 DEG C, and heating rate is 8-10 DEG C/min so that each component can preferably be obtained activation processing.
More preferably, rock phosphate in powder used in described step (1) be phosphorus pentoxide content be no more than 25% low-grade
Phosphorus ore, utilizes low-grade phosphorus ore, with commercial production resource, and resource will can be made to be fully utilized.
More preferably, when being dried by red mud with drying baker in described step (2), the temperature arranging drying baker is 75-85 DEG C.Temperature
Spend high can the component of red mud generation to affect, the efficiency that the too low impact of temperature produces.
In present invention research, through verification experimental verification, when preparing flocculant, along with ferro-aluminum leaching liquid, the phosphorus of high-temperature activation
Ore and the change in inulin response time, have considerable influence to the wastewater treatment efficiency of flocculant, when ferro-aluminum leaching liquid, high temperature are lived
The rock phosphate in powder changed and the time of inulin hybrid reaction are 80-210min, and the flocculating effect of flocculant is preferable；Time preferred
Between be 120min.
More preferably, in described step (3) when ferro-aluminum leaching liquid, the rock phosphate in powder of high-temperature activation and inulin hybrid reaction, first to
Reaction vessel beaker adds ferro-aluminum leaching liquid, while stirring, then adds the rock phosphate in powder of high-temperature activation, after mixing, then add
Enter inulin to react.
In the preparation process of composite flocculation agent, the amount ratio of ferro-aluminum leaching liquid, the rock phosphate in powder of high-temperature activation and inulin is
One of key factor of flocculant effect, it is preferable that in described step (3) during hybrid reaction, ferro-aluminum leaching liquid, high-temperature activation
The weight ratio of rock phosphate in powder and inulin is 9:9:4.
The present invention also provides for the method utilizing this rock phosphate in powder-red mud-inulin composite flocculation agent to process sewage, particularly as follows: first
The pH value of sewage is adjusted to 9-10, then according to volume ratio is waste water: composite flocculation agent is that the ratio of 100:2-3 adds in waste water
Enter composite flocculation agent to process.
More preferably, during sewage disposal, the temperature regulating sewage is also needed to be 20-30 DEG C.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, the preparation method of the present invention is simple, can be with large-scale production.
2, the method for the present invention is with low grade rock phosphate, red mud and inulin as raw material, it is achieved that the abundant profit of waste resource
With, and ground phosphate rock processes through high-temperature activation, red mud reacts with inulin after extraction, it is possible to play synergism, obtained wadding
Solidifying agent is for the process of sewage, and flocculating effect is good.
3, extremely complex due to the flocculation mechanism of composite flocculation agent, the present invention also optimizes and utilizes this rock phosphate in powder-red mud-chrysanthemum
Powder composite flocculant processes the method for sewage, is determined by the pH value of waste water, and the temperature of waste water, the input amount etc. of flocculant affect
The numerical value of the factor, it is thus achieved that more excellent wastewater treatment efficiency, make the clearance of COD, turbidity and colourity respectively reach 95.0%,
96.1% and 88.3%
[accompanying drawing explanation]
The water treatment efficiency of gained flocculant when Fig. 1 is the consumption change of ferro-aluminum leaching liquid；
The water treatment efficiency of gained flocculant when Fig. 2 is the rock phosphate in powder consumption change of high-temperature activation；
The water treatment efficiency of gained flocculant when Fig. 3 is the consumption change of inulin；
When Fig. 4 is the response time change of ferro-aluminum leaching liquid, the rock phosphate in powder of high-temperature activation, inulin at the water of gained flocculant
Reason effect.
[detailed description of the invention]
In order to more clearly express the present invention, below by way of specific embodiment, the invention will be further described, in order to test
The effect of the card present invention, is used for processing the industrial wastewater in Bose City big China chemical plant by gained composite flocculation agent, detection waste water
COD, turbidity, colourity and pH.It is waste water according to volume ratio during process: composite flocculation agent is that the ratio of 100:3 adds in waste water
Composite flocculation agent processes ten minutes, then measures the COD of processed waste water, turbidity, colourity.The COD of taken waste water, turbidity, color
The test result of degree is as shown in table 1.
Table 1 industrial wastewater water quality situation
Embodiment 1
The preparation method of a kind of rock phosphate in powder-red mud-inulin composite flocculation agent, comprises the following steps:
(1) high-temperature activation of rock phosphate in powder: rock phosphate powder was broken into the fine powder of 100 mesh sieves；Take the rock phosphate in powder after sieving thin
Powder, in crucible, is incubated 6h at a temperature of 600 DEG C, it is carried out high-temperature activation；
(2) process of red mud: with drying baker, red mud is dried to moisture content less than 5%, then pulverized, ground to form
The red mud fine powder of 100 mesh sieves；Take red mud fine powder and the hydrochloric acid that concentration is 6mol/L be that 5:1 mixes in a reservoir according to solid-to-liquid ratio,
Being placed in reacting by heating in the thermostat water bath that temperature is 85 DEG C the most together, take out and filtered while hot after question response 2h, gained is filtered
Liquid is ferro-aluminum leaching liquid；
(3) preparation of composite flocculation agent: be 9 according to weight ratio by ferro-aluminum leaching liquid, the rock phosphate in powder of high-temperature activation and inulin:
9:4 mixing carries out reacting and i.e. obtains described rock phosphate in powder-red mud-inulin composite flocculation agent.
Above-mentioned sewage is processed with gained flocculant, the clearance of COD, turbidity and colourity each reached 88.1%,
90.2% and 85.6%.
Embodiment 2
The preparation method of a kind of rock phosphate in powder-red mud-inulin composite flocculation agent, comprises the following steps:
(1) high-temperature activation of rock phosphate in powder: the low-grade phosphate ore stone powder of phosphorus pentoxide content no more than 25% was broken into
The fine powder of 150 mesh sieves；Take the rock phosphate in powder fine powder after sieving in crucible, then use Muffle furnace that it is carried out high-temperature activation, adopt
Heat up by the mode of temperature programmed control, and heating rate is 8 DEG C/min, at a temperature of 800 DEG C, be then incubated 4h；
(2) process of red mud: be set to 75 DEG C of drying baker by temperature and red mud dried to moisture content less than 5%, then by it
Pulverize, ground to form the red mud fine powder of 100 mesh sieves；Take red mud fine powder and the hydrochloric acid that concentration is 10mol/L is 7:1 according to solid-to-liquid ratio
Mix in a reservoir, be placed in reacting by heating in the thermostat water bath that temperature is 90 DEG C the most together, take out after question response 2h and take advantage of
Heat filtering, gained filtrate is ferro-aluminum leaching liquid；
(3) preparation of composite flocculation agent: be 11 by the weight ratio of ferro-aluminum leaching liquid, the rock phosphate in powder of high-temperature activation and inulin:
7:5 weighs raw material, first adds ferro-aluminum leaching liquid in beaker, then adds the rock phosphate in powder of high-temperature activation while stirring, mixed
After even, add inulin and react, hybrid reaction 100min, obtain described rock phosphate in powder-red mud-inulin composite flocculation agent.
Above-mentioned sewage is processed with gained flocculant, the clearance of COD, turbidity and colourity each reached 89.1%,
90.9% and 86.1%.
Embodiment 3
The preparation method of a kind of rock phosphate in powder-red mud-inulin composite flocculation agent, comprises the following steps:
(1) high-temperature activation of rock phosphate in powder: the low-grade phosphate ore stone powder that phosphorus pentoxide content is 20% was broken into 120 mesh
The fine powder of sieve；Take the rock phosphate in powder fine powder after sieving in crucible, then use Muffle furnace that it is carried out high-temperature activation, use program
The mode of temperature control heats up, and heating rate is 10 DEG C/min, is then incubated 5h at a temperature of 700 DEG C；
(2) process of red mud: be set to 80 DEG C of drying baker by temperature and red mud dried to moisture content less than 5%, then by it
Pulverize, ground to form the red mud fine powder of 120 mesh sieves；Take red mud fine powder and the hydrochloric acid that concentration is 8mol/L is 6:1 according to solid-to-liquid ratio
Mix in a reservoir, be placed in reacting by heating in the thermostat water bath that temperature is 85 DEG C the most together, take out after question response 2h and take advantage of
Heat filtering, gained filtrate is ferro-aluminum leaching liquid；
(3) preparation of composite flocculation agent: be 9:9 by the weight ratio of ferro-aluminum leaching liquid, the rock phosphate in powder of high-temperature activation and inulin:
4 weigh raw material, first add ferro-aluminum leaching liquid in beaker, then add the rock phosphate in powder of high-temperature activation, mixing while stirring
After, add inulin and react, hybrid reaction 100min, obtain described rock phosphate in powder-red mud-inulin composite flocculation agent.
Above-mentioned sewage is processed with gained flocculant, the clearance of COD, turbidity and colourity each reached 90.1%,
91.2% and 83.6%.
Embodiment 4-10
The difference of the preparation method of embodiment 4-10 and embodiment 3 is the phosphorus ore of ferro-aluminum leaching liquid, high-temperature activation
Stone is different with the weight ratio of inulin, respectively 5-17:9:4, round numbers ratio, produces after obtaining composite flocculation agent, respectively according to front
The method stated processes aforesaid industrial wastewater, measures the COD of processed waste water, turbidity, colourity, and calculates COD, turbidity and colourity
Clearance, result is depicted as curve chart, as shown in Figure 1.It will be seen from figure 1 that along with the consumption of ferro-aluminum leaching liquid increases,
The treatment effect of sewage is first stepped up, after reduce again, the ratio three is 9:9:4, and the effect of flocculant flocculation is best,
The clearance of COD, turbidity and colourity has each reached 90.1%, 92.2% and 84.6%.
Embodiment 11-14
The difference of the preparation method of embodiment 11-14 and embodiment 3 is the phosphorus ore of ferro-aluminum leaching liquid, high-temperature activation
Stone is different with the weight ratio of inulin, respectively 15:5-11:2, round numbers ratio, produces after obtaining composite flocculation agent, respectively according to front
The method stated processes aforesaid industrial wastewater, measures the COD of processed waste water, turbidity, colourity, and calculates COD, turbidity and colourity
Clearance, result is depicted as curve chart, as shown in Figure 2.Figure it is seen that along with the consumption of ferro-aluminum leaching liquid increases,
The treatment effect of sewage is first stepped up, after reduce again, the ratio three is 15:9:2, and the effect of flocculant flocculation is best,
The clearance of COD, turbidity and colourity has each reached 82.9%, 83.5% and 70.5%.
Embodiment 15-21
The difference of the preparation method of embodiment 15-21 and embodiment 3 is the phosphorus ore of ferro-aluminum leaching liquid, high-temperature activation
Stone is different with the weight ratio of inulin, respectively 15:9:2-8, round numbers ratio, produces after obtaining composite flocculation agent, respectively according to front
The method stated processes aforesaid industrial wastewater, measures the COD of processed waste water, turbidity, colourity, and calculates COD, turbidity and colourity
Clearance, result is depicted as curve chart, as shown in Figure 3.From figure 3, it can be seen that along with the consumption of ferro-aluminum leaching liquid increases,
The treatment effect of sewage is first stepped up, after reduce again, the ratio three is 15:9:2, and the effect of flocculant flocculation is best,
The clearance of COD, turbidity and colourity has each reached 85.2%, 87.5% and 80.8%.
Embodiment 22-28
The difference of the preparation method of embodiment 22-28 and embodiment 3 is the phosphorus ore of ferro-aluminum leaching liquid, high-temperature activation
Stone is different with the time of inulin hybrid reaction, 30min progressively increase to 210min, produces after obtaining composite flocculation agent, respectively
Process aforesaid industrial wastewater as the method previously described, measure the COD of processed waste water, turbidity, colourity, and calculate COD, turbidity
With the clearance of colourity, result is depicted as curve chart, as shown in Figure 4.From fig. 4, it can be seen that along with the increase in response time,
The wastewater treatment efficiency of gained flocculant is first stepped up, after reduce again, when reacted between when being 120min, flocculant flocculation
Effect is best, and the clearance of COD, turbidity and colourity has each reached 90.4%, 92.8% and 89.5%.
Embodiment 29
The method that the present invention processes sewage to the rock phosphate in powder-red mud-inulin composite flocculation agent of gained is optimized, specifically
For: first the pH value of sewage is adjusted to 9-10, and the temperature regulating sewage is 20-30 DEG C, then according to volume ratio is waste water: be compound
Flocculant is that the ratio of 100:2-3 adds composite flocculation agent in waste water and processes.
Experiment finds, when the pH of industrial wastewater is 10, and temperature is about 25 DEG C, waste water: the volume ratio of composite flocculation agent is
During 100:3, the clearance of COD, turbidity and colourity has respectively reached 95.0%, 96.1% and 88.3%.
Described above is the detailed description for the preferable possible embodiments of the present invention, but embodiment is not limited to this
Bright patent claim, the equal change completed under the technical spirit suggested by all present invention or modification change, all should belong to
In the contained the scope of the claims of the present invention.
Claims (10)
1. the preparation method of rock phosphate in powder-red mud-inulin composite flocculation agent, it is characterised in that comprise the following steps:
(1) high-temperature activation of rock phosphate in powder: rock phosphate powder was broken into the fine powder of 100-150 mesh sieve；Take the rock phosphate in powder after sieving thin
Powder, in crucible, is incubated 4-6h at a temperature of 600-800 DEG C, it is carried out high-temperature activation；
(2) process of red mud: with drying baker, red mud is dried to moisture content less than 5%, then pulverized, ground to form 100-
The red mud fine powder of 150 mesh sieves；Take red mud fine powder and H+Concentration is that to be 5-7:1 according to solid-to-liquid ratio holding the acid solution of 6-10mol/L
Device mixes, is placed in reacting by heating in the thermostat water bath that temperature is 80-90 DEG C the most together, takes out after question response 2-3h and take advantage of
Heat filtering, gained filtrate is ferro-aluminum leaching liquid；
(3) preparation of composite flocculation agent: be 7-11 according to weight ratio by ferro-aluminum leaching liquid, the rock phosphate in powder of high-temperature activation and inulin:
7-11:3-5 mixing carries out reacting and i.e. obtains described rock phosphate in powder-red mud-inulin composite flocculation agent.
The preparation method of rock phosphate in powder-red mud-inulin composite flocculation agent the most according to claim 1, it is characterised in that: described
When step (1) carries out high-temperature activation to rock phosphate powder, the mode of temperature programmed control is used to be warming up to 600-800 DEG C, heating rate
For 8-10 DEG C/min.
The preparation method of rock phosphate in powder-red mud-inulin composite flocculation agent the most according to claim 1, it is characterised in that: described
Rock phosphate in powder used in step (1) be phosphorus pentoxide content be the low-grade phosphate ore of no more than 25%.
The preparation method of rock phosphate in powder-red mud-inulin composite flocculation agent the most according to claim 1, it is characterised in that: described
When being dried by red mud with drying baker in step (2), the temperature arranging drying baker is 75-85 DEG C.
The preparation method of rock phosphate in powder-red mud-inulin composite flocculation agent the most according to claim 1, it is characterised in that: described
In step (3), the time of ferro-aluminum leaching liquid, the rock phosphate in powder of high-temperature activation and inulin hybrid reaction is 80-210min.
The preparation method of rock phosphate in powder-red mud-inulin composite flocculation agent the most according to claim 1, it is characterised in that: described
In step (3) when ferro-aluminum leaching liquid, the rock phosphate in powder of high-temperature activation and inulin hybrid reaction, in reaction vessel beaker, first add aluminum
Ferrum leaching liquid, then adds the rock phosphate in powder of high-temperature activation while stirring, after mixing, adds inulin and react.
The preparation method of rock phosphate in powder-red mud-inulin composite flocculation agent the most according to claim 1, it is characterised in that: described
In step (3), during hybrid reaction, the weight ratio of ferro-aluminum leaching liquid, the rock phosphate in powder of high-temperature activation and inulin is 9:9:4.
8. rock phosphate in powder-red mud-inulin the composite flocculation agent being prepared by the method described in claim 1-7.
9. rock phosphate in powder-red mud-inulin the composite flocculation agent utilizing the method described in claim 1-7 to prepare processes sewage
Method, it is characterised in that: first the pH value of sewage is adjusted to 9-10, then according to volume ratio is waste water: composite flocculation agent is 100:
The ratio of 2-3 adds composite flocculation agent in waste water and processes.
The method utilizing rock phosphate in powder-red mud-inulin composite flocculation agent to process sewage the most according to claim 9, its feature
It is: during sewage disposal, also needs the temperature regulating sewage to be 20-30 DEG C.
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| CN102010047A (en) * | 2010-12-22 | 2011-04-13 | 重庆大学 | Method for synthesizing polymeric aluminum chloride by utilizing powdered rock phosphate |
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| CN102674511B (en) * | 2012-05-02 | 2013-10-02 | 中国科学院生态环境研究中心 | Method for preparing composite flocculant for printing and dyeing wastewater treatment |
| CN103922448A (en) * | 2013-01-14 | 2014-07-16 | 中国地质大学（北京） | Method for preparing multi-component flocculant and co-producing composite white carbon black by using red mud |
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| CN102010047A (en) * | 2010-12-22 | 2011-04-13 | 重庆大学 | Method for synthesizing polymeric aluminum chloride by utilizing powdered rock phosphate |
| CN102674511B (en) * | 2012-05-02 | 2013-10-02 | 中国科学院生态环境研究中心 | Method for preparing composite flocculant for printing and dyeing wastewater treatment |
| CN102992460A (en) * | 2012-12-11 | 2013-03-27 | 常州大学 | Production process of composite water purifier polymeric aluminum ferric phosphate sulfate |
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Application publication date: 20161221 Assignee: Guangxi Taixing Environmental Testing Technology Service Co.,Ltd. Assignor: BAISE University Contract record no.: X2023980045588 Denomination of invention: Preparation method and wastewater treatment method of phosphate rock red mud inulin composite flocculant Granted publication date: 20190802 License type: Common License Record date: 20231106 |