CN106746096A - A kind of processing method of phosphorous iron ore beneficiation waste water - Google Patents
A kind of processing method of phosphorous iron ore beneficiation waste water Download PDFInfo
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- CN106746096A CN106746096A CN201710107168.6A CN201710107168A CN106746096A CN 106746096 A CN106746096 A CN 106746096A CN 201710107168 A CN201710107168 A CN 201710107168A CN 106746096 A CN106746096 A CN 106746096A
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- waste water
- red mud
- iron ore
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 239000002351 wastewater Substances 0.000 title claims abstract description 31
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 25
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000005456 ore beneficiation Methods 0.000 title claims abstract description 22
- 238000003672 processing method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000003756 stirring Methods 0.000 claims abstract description 19
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 18
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003054 catalyst Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 10
- 239000011941 photocatalyst Substances 0.000 claims abstract description 8
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 8
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 5
- 239000000440 bentonite Substances 0.000 claims abstract description 5
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 5
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000008367 deionised water Substances 0.000 claims abstract description 5
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 5
- 238000004821 distillation Methods 0.000 claims abstract description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims abstract description 4
- 239000002699 waste material Substances 0.000 claims description 16
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 10
- 239000013078 crystal Substances 0.000 claims description 8
- 239000006228 supernatant Substances 0.000 claims description 8
- 229960000583 acetic acid Drugs 0.000 claims description 4
- 230000032683 aging Effects 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 claims description 4
- YBYGDBANBWOYIF-UHFFFAOYSA-N erbium(3+);trinitrate Chemical compound [Er+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O YBYGDBANBWOYIF-UHFFFAOYSA-N 0.000 claims description 4
- FYDKNKUEBJQCCN-UHFFFAOYSA-N lanthanum(3+);trinitrate Chemical compound [La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FYDKNKUEBJQCCN-UHFFFAOYSA-N 0.000 claims description 4
- 239000008213 purified water Substances 0.000 claims description 4
- 230000009466 transformation Effects 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 239000012362 glacial acetic acid Substances 0.000 claims description 2
- 239000013049 sediment Substances 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 238000000746 purification Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000012512 characterization method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000003851 biochemical process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009388 chemical precipitation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 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
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- -1 iron aluminum metal oxide Chemical class 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009628 steelmaking 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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/11—Turbidity
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of processing method of phosphorous iron ore beneficiation waste water, step is：（1）Prepare changed red mud：Red mud is placed in hydrochloric acid, is stirred in water-bath, kiln roasting will be placed in after deposit distillation washing；（2）Prepare modified alta-mud：Bentonite is soaked in sodium carbonate liquor and is stirred, be placed in kiln roasting；（3）Prepare visible-light-responsive photocatalyst：A. to butyl titanate is added in the vessel equipped with absolute ethyl alcohol, clear solution A is obtained；B. another vessel are taken, absolute ethyl alcohol, deionized water, polyethylene glycol etc. is added, solution B is obtained；C. by B solution instillation solution A, stirring obtains titanium dioxide yellow sol；（4）Changed red mud, modified alta-mud and photochemical catalyst are well mixed；（5）Under light source irradiation, mixing material is added in the agitator tank equipped with phosphorous iron ore beneficiation waste water, stirring stands.High treating effect, simple to operate, with low cost, process cycle be short, water purification and scum can reuses after treatment.
Description
Technical field
The invention belongs to the technical field of beneficiation wastewater treatment, a kind for the treatment of side of iron ore beneficiation waste water is more particularly to
Method, it is adaptable to the treatment of phosphorous beneficiation wastewater high and recycling.
Background technology
Substantial amounts of high P content waste water can be produced in exploitation process containing fosfosiderite, in recent decades, due to many choosings
Ore deposit is just directly largely entered in lake, river, coastal waters and off-lying sea containing phosphorus waste liquid without effectively treatment, result in the tight of water body
Heavily contaminated, increased the loads of nutrition of water body, and destruction aquatic ecological balance causes water body organoleptic properties variation, self-purification capacity to subtract
Weak, deteriorating water quality, water supply cost are improved, and have a strong impact on food chain, or even the mankind, animal, domestic animal etc. is poisoned to death.Seek honest and clean
Valency, efficient phosphorus ligands technology are the important problems that beneficiation wastewater treatment technology faces during phosphorous iron ore exploitation.
At present for the treatment of high P content waste water, both at home and abroad conventional processing method can be divided into biochemical process, chemical precipitation method,
Absorption method.Biochemical process operating cost is low, but operation requires that strict, stability is poor；Chemical precipitation method is most effective so far, steady
Qualitative best dephosphorization technique, but reagent cost is expensive, and sludge yield is big；Absorption method dephosphorization is then because of efficient, quick, equipment letter
It is single, reliable and be gradually valued by people.Red mud is the waste residue of aluminum oxide industry production, belongs to one of three wastes.Due to
Red mud main component is silica, calcium oxide and iron aluminum metal oxide, and the presence of these materials makes red mud to specificization
Learn material and produce specific removal effect.Contain a certain amount of titanium dioxide in red mud, there is certain catalytic performance, red mud is modified
It is used to process phosphorous iron ore beneficiation waste water with reference to photochemical catalyst and modified alta-mud afterwards, red mud and modified alta-mud can be given full play to
Characterization of adsorption, it is only necessary to supplementing a small amount of photochemical catalyst just can efficiently play its catalytic performance, by oxygen while Adsorption phosphorus
Change iron and be reduced into Zero-valent Iron, be processed rear waste water and the equal resourcebility of scum is recycled.
The content of the invention
It is to provide a kind of processing method of phosphorous iron ore beneficiation waste water that the purpose of the present invention is, there is the method treatment to imitate
Really good, technological operation is simple, with low cost, process cycle is short, after treatment water purification and scum can reuse the features such as.
To achieve these goals, the present invention uses following technical scheme：
A kind of processing method of phosphorous iron ore beneficiation waste water, comprises the following steps：
(1) changed red mud is prepared：
By Aluminum waste red mud：Hydrochloric acid (mass concentration is 5~10%)=50g~100g：1L, hydrochloric acid is placed in by red mud
In, 1~2h is sufficiently stirred in 60~100 DEG C of water-bath, stand；Pour out supernatant, by deposit with distillation washing 5~
It is placed in after 10 times in Muffle furnace in 1~2h of roasting at 400~500 DEG C；Then take out and be cooled to room temperature (20-25 DEG C, following phase
Together), changed red mud is obtained；
(2) modified alta-mud is prepared：
Bentonite is soaked in sodium carbonate liquor (mass fraction 8~12%) and stirs l~2h in 60~80 DEG C, put
1~2h is calcined under the conditions of 450~500 DEG C in Muffle furnace, modified alta-mud is obtained；
(3) visible-light-responsive photocatalyst is prepared：
A. to the butyl titanate that 5~8 volumes are added in the vessel of the absolute ethyl alcohol equipped with 10~15 volumes, maintain stirring straight
It is well mixed to it, obtain yellow transparent solution A；
B. another vessel are taken, absolute ethyl alcohol, the deionized water of 1~2 volume, 2~4 of 5~8 volumes is separately added into thereto
The glacial acetic acid of volume, the polyethylene glycol of 0.5~1 volume, 0.5~1 erbium nitrate, 0.5~1 cerous nitrate, 0.5~1 lanthanum nitrate and
0.5~1 ferric crystals, maintain stirring to be well mixed up to it, obtain solution B；
C. by B solution instillation solution A, stirred in drop, be added dropwise to complete 20~24h of rear closed ageing, obtain a kind of steady
Fixed, uniform, clear titanium dioxide yellow sol；By titanium dioxide yellow sol be put into temperature control furnace (NWTX-17C) with
3~5 DEG C/min is heat-treated to 550 DEG C, and 1~2h is then processed under the conditions of 550 DEG C, and completion transformation of crystal is obtained visible light-responded
Type photochemical catalyst.
(4) by the changed red mud 70%-80% of certain mass fraction, modified alta-mud 15%-25% and photochemical catalyst
5%-10% is well mixed, and obtains a kind of mixing material；
A kind of mixing material it be made up of following mass fraction：
(5) light source irradiation under the conditions of, in the agitator tank equipped with phosphorous iron ore beneficiation waste water according to every liter of waste water in plus
Enter the above-mentioned mixing materials of 5~20g, stood after 1~2h of stirring, supernatant is the purified water that can be back to ore dressing process, precipitates
Thing is the scum of recoverable after reduction.
Described light source is the mixed of any one or any two or more in ultraviolet light, high-pressure sodium lamp, natural light, fluorescence
Closing light source.
The modified combination photochemical catalyst of red mud and modified alta-mud are used to process phosphorous iron ore beneficiation waste water by the present invention, can
Give full play to the characterization of adsorption of red mud and modified alta-mud, it is only necessary to which supplementing a small amount of photochemical catalyst just can efficiently play its catalytic
Can, iron oxide is reduced into Zero-valent Iron while Adsorption phosphorus, it is high to be processed rear waste water dephosphorization rate, can be directly used for choosing
Circulation is efficiently utilized ore deposit waste liquid with resource online, largely saves the consumption of ore-dressing technique reclaimed water, and significantly reduce
Ore dressing pollution problem caused by discharge of wastewater, the scum iron-holder reduced in waste residue is up to more than 90%, can be directly used as
Steel-making, ironmaking, raw materials for sintering, realize that factory's interior circulation is utilized, and by recycling " to give up for ore deposit " reduction production cost, reduce
Residue contamination.
The present invention compared with prior art, with advantages below and beneficial effect：
1st, using changed red mud and modified alta-mud as phosphorus adsorbent, the treatment of wastes with processes of wastes against one another, Dephosphorising agent is with low cost, waste resource
Change and utilize, have broad application prospects, achievable resource is effectively utilized；
2nd, changed red mud combination photochemical catalyst and modified alta-mud are used to process phosphorous iron ore beneficiation waste water, can give full play to
The characterization of adsorption of red mud and modified alta-mud, it is only necessary to which supplementing a small amount of photochemical catalyst just can efficiently play its catalytic performance, in absorption
Go that iron oxide is efficiently reduced into Zero-valent Iron while dephosphorization；
3rd, technological operation is simple, and with low cost, process cycle is short, and water purification and scum can reuses after treatment.
4th, the dephosphorization rate of phosphorous iron ore beneficiation waste water can reach more than 95%, and water outlet pH is 6.5-8.0, and delivery turbidity is less than
2NTU, circulation is efficiently utilized with resource online to can be directly used for ore dressing waste liquid.The taste of the scum reduced in waste residue is up to 90%
More than, the raw material such as can be directly used as making steel, smelt iron, sinter.
Specific embodiment
It is with reference to the embodiment content that the present invention is furture elucidated but of the invention in order to be better understood from the present invention
Content is not limited solely to the following examples.
Embodiment 1：
A kind of processing method of phosphorous iron ore beneficiation waste water, its step is：
(1) changed red mud is prepared：
By Aluminum waste red mud：Hydrochloric acid (mass concentration is 10%)=50g：1L, red mud is placed in hydrochloric acid, at 60 DEG C
2h is sufficiently stirred in water-bath, is stood；Supernatant is poured out, is placed in Muffle furnace in 400 after deposit distillation is washed into 5 times
1h is calcined at DEG C；Then take out and be cooled to room temperature, obtain changed red mud；
(2) modified alta-mud is prepared：
Bentonite is soaked in sodium carbonate liquor (mass fraction 12%) and stirs 2h in 60 DEG C, be placed in Muffle furnace
2h is calcined under the conditions of 500 DEG C, modified alta-mud is obtained；
(3) visible-light-responsive photocatalyst is prepared：
A. to the butyl titanate that 5 volumes are added in the vessel of the absolute ethyl alcohol equipped with 10 volumes, stirring is maintained until it is mixed
Close uniform, obtain yellow transparent solution A；
B. another vessel are taken, absolute ethyl alcohol, the deionized water of 2 volumes, the ice of 4 volumes of 8 volumes is separately added into thereto
Acetic acid, the polyethylene glycol of 1 volume, the erbium nitrate of 0.5 volume, the cerous nitrate of 1 volume, the lanthanum nitrate of 1 volume and 0.5 volume
Ferric crystals, maintain stirring to be well mixed up to it, obtain solution B；
C. by B solution instillation solution A, stirred in drop, be added dropwise to complete rear closed ageing 20h, obtain a kind of stable, equal
Even, clear titanium dioxide yellow sol；It is put into temperature programmed control stove and is heat-treated to 550 DEG C with 5 DEG C/min, then 550
2h is processed under the conditions of DEG C, transformation of crystal is completed and visible-light-responsive photocatalyst is obtained.
(4) changed red mud 70% of certain proportion mass fraction, modified alta-mud 25% and photochemical catalyst 5% are mixed
It is even, obtain a kind of mixing material；
(5) under the conditions of the high voltage mercury lamp radiation of 125W, according to every in the agitator tank equipped with phosphorous iron ore beneficiation waste water
The addition above-mentioned mixing materials of 5g in waste water are risen, is stood after stirring 2h.Supernatant is the purified water that can be back to ore dressing process, precipitation
Thing is the scum of recoverable after reduction.The dephosphorization rate of phosphorous iron ore beneficiation waste water reaches 96.2%, and water outlet pH is 7.6, is gone out
Water turbidity 2NTU.The taste of the scum reduced in waste residue is 92.1%.
Embodiment 2：
A kind of processing method of phosphorous iron ore beneficiation waste water, it is characterised in that comprise the following steps：
(1) changed red mud is prepared：
By Aluminum waste red mud：Hydrochloric acid (mass concentration is 10%)=100g：1L, red mud is placed in hydrochloric acid, at 100 DEG C
Water-bath in be sufficiently stirred for 1h, stand；Pour out supernatant, by deposit distillation washing 5 times after be placed in Muffle furnace in
1h is calcined at 400 DEG C；Then take out and be cooled to room temperature, obtain changed red mud；
(2) modified alta-mud is prepared：
Bentonite is soaked in sodium carbonate liquor (mass fraction 12%) and stirs 2h in 60 DEG C, be placed in Muffle furnace
1h is calcined under the conditions of 450 DEG C, modified alta-mud is obtained；
(3) visible-light-responsive photocatalyst is prepared：
A. to the butyl titanate that 5 volumes are added in the vessel of the absolute ethyl alcohol equipped with 10 volumes, stirring is maintained until it is mixed
Close uniform, obtain yellow transparent solution A；
B. another vessel are taken, absolute ethyl alcohol, the deionized water of 1 volume, the ice of 2 volumes of 5 volumes is separately added into thereto
Acetic acid, the polyethylene glycol of 1 volume, the erbium nitrate of 0.5 volume, the cerous nitrate of 0.5 volume, the lanthanum nitrate of 1 volume and 1 volume
Ferric crystals, maintain stirring to be well mixed up to it, obtain solution B；
C. B solution is instilled into solution A, while drop while stir, be added dropwise to complete rear closed ageing 20h must stablize, uniformly, clarify thoroughly
Bright titanium dioxide yellow sol；It is put into temperature programmed control stove and is heat-treated to 550 DEG C with 5 DEG C/min, then locates under the conditions of 550 DEG C
Reason 2h, completes transformation of crystal and visible-light-responsive photocatalyst is obtained.
(4) changed red mud, modified alta-mud and photochemical catalyst are mixed by following mass fraction；
By above-mentioned changed red mud, modified alta-mud, photochemical catalyst, well mixed (certain proportion within the range is modified
Red mud, modified alta-mud, photochemical catalyst are added and are equal to 100%), obtain a kind of mixing material；
(5) it is useless according to every liter in the agitator tank equipped with phosphorous iron ore beneficiation waste water under the conditions of the ultra violet lamp of 20W
The above-mentioned mixing materials of 10g are added in water, is stood after stirring 2h.Supernatant is the purified water that can be back to ore dressing process, sediment
It is the scum of recoverable after reduction.The dephosphorization rate of phosphorous iron ore beneficiation waste water reaches 98.6%, and water outlet pH is 7.2, water outlet
Turbidity 2NTU.The taste of the scum reduced in waste residue is 92.9%.
Claims (3)
1. a kind of processing method of phosphorous iron ore beneficiation waste water, its step is：
(1) changed red mud is prepared：
By Aluminum waste red mud：Hydrochloric acid mass concentration is 5~10%=50g~100g：1L, red mud is placed in hydrochloric acid, 60
1~2h is sufficiently stirred in~100 DEG C of water-bath, is stood；Supernatant is poured out, by deposit with after distillation washing 5~10 times
It is placed in Muffle furnace in 1~2h of roasting at 400~500 DEG C；Then take out and be cooled to room temperature, obtain changed red mud；
(2) modified alta-mud is prepared：
Bentonite is soaked in sodium carbonate liquor mass fraction 8~12% and stirs l~2h in 60~80 DEG C, be placed on Muffle
1~2h is calcined in stove under the conditions of 450~500 DEG C, modified alta-mud is obtained；
(3) visible-light-responsive photocatalyst is prepared：
A. to the butyl titanate that 5~8 volumes are added in the vessel of the absolute ethyl alcohol equipped with 10~15 volumes, stirring until its mixing
Uniformly, yellow transparent solution A is obtained；
B. another vessel are taken, absolute ethyl alcohol, the deionized water of 1~2 volume, 2~4 volumes of 5~8 volumes is separately added into thereto
Glacial acetic acid, the polyethylene glycol of 0.5~1 volume, 0.5~1 erbium nitrate, 0.5~1 cerous nitrate, 0.5~1 lanthanum nitrate and 0.5~
1 ferric crystals, stirring is well mixed up to it, obtains solution B；
C. by B solution instillation solution A, stirred in drop, be added dropwise to complete 20~24h of rear closed ageing, obtain a kind of stable, equal
Even, clear titanium dioxide yellow sol；Titanium dioxide yellow sol is put into temperature control furnace with 3~5 DEG C/min heat
Then reason processes 1~2h to 550 DEG C under the conditions of 550 DEG C, completes transformation of crystal and visible-light-responsive photocatalyst is obtained；
(4) by the changed red mud 70%-80% of certain mass fraction, modified alta-mud 15%-25% and photochemical catalyst 5%-
10% is well mixed, and obtains a kind of mixing material；
(5) light source irradiation under the conditions of, in the agitator tank equipped with phosphorous iron ore beneficiation waste water according to every liter of waste water in add 5~
20g mixing materials, stand after 1~2h of stirring, and supernatant is the purified water for being back to ore dressing process, and sediment is that can be returned after reducing
The scum that receipts are utilized.
2. the processing method of a kind of phosphorous iron ore beneficiation waste water according to claim 1, it is characterised in that：Described one kind
Mixing material it be made up of following mass fraction：
3. the processing method of a kind of phosphorous iron ore beneficiation waste water according to claim 1, it is characterised in that：Described light source
It is the mixing light source of any one or any two or more in ultraviolet light, high-pressure sodium lamp, natural light, fluorescence.
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| CN101423306A (en) * | 2008-11-18 | 2009-05-06 | 武汉理工大学 | Treatment method and equipment for high phosphorus haematite mineral processing acid wastewater |
| CN103230802A (en) * | 2013-04-12 | 2013-08-07 | 广东工业大学 | Preparation method of composite photocatalyst with visible light response and arsenic removing method |
| CN103480357A (en) * | 2013-08-13 | 2014-01-01 | 南通大学 | Rubidium ions doped nanometer titania photocatalyst and preparation method thereof |
| CN105195124A (en) * | 2015-10-10 | 2015-12-30 | 中国科学院水生生物研究所 | Preparation method and application of photocatalyst capable of removing refractory organic matters |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101423306A (en) * | 2008-11-18 | 2009-05-06 | 武汉理工大学 | Treatment method and equipment for high phosphorus haematite mineral processing acid wastewater |
| CN103230802A (en) * | 2013-04-12 | 2013-08-07 | 广东工业大学 | Preparation method of composite photocatalyst with visible light response and arsenic removing method |
| CN103480357A (en) * | 2013-08-13 | 2014-01-01 | 南通大学 | Rubidium ions doped nanometer titania photocatalyst and preparation method thereof |
| CN105195124A (en) * | 2015-10-10 | 2015-12-30 | 中国科学院水生生物研究所 | Preparation method and application of photocatalyst capable of removing refractory organic matters |
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| CN113058547A (en) * | 2021-04-15 | 2021-07-02 | 南京大学 | Efficient phosphorus removal agent, preparation method and application thereof |
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