CN101759307B - Compound scale inhibitor for desalting vanadium extracting waste water of shale containing vanadium and use method - Google Patents

Compound scale inhibitor for desalting vanadium extracting waste water of shale containing vanadium and use method Download PDF

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CN101759307B
CN101759307B CN2009102731405A CN200910273140A CN101759307B CN 101759307 B CN101759307 B CN 101759307B CN 2009102731405 A CN2009102731405 A CN 2009102731405A CN 200910273140 A CN200910273140 A CN 200910273140A CN 101759307 B CN101759307 B CN 101759307B
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vanadium
waste water
scale inhibitor
shale
extracting waste
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CN101759307A (en
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包申旭
张一敏
刘涛
黄晶
陈铁军
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Wuhan University of Science and Engineering WUSE
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Wuhan University of Science and Engineering WUSE
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    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis

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Abstract

The invention relates to a compound scale inhibitor for desalting the vanadium extracting waste water of shale containing vanadium and a use method. The compound scale inhibitor comprises the following components in percentage by weight: 30-35 percent of sodium of polyepoxysuccinic acid, 10-15 percent of 2- phosphonobotane-1, 2, 4-tetrasodium tricarboxylic acid, 5-8 percent of 4-isothiazoline-3-ketone, 8-10 percent of sodium lignin sulfonate and the balance of water. The components are sufficiently stirred and uniformly mixed. The use method of the compound scale inhibitor comprises the following steps of: when the vanadium extracting waste water of the shale containing vanadium has medium and low rigidity and medium and low alkalinity, adding 8-12mg of the scale inhibitor to each liter; and when the waste water has high rigidity and high alkalinity, adding 15-20mg of the scale inhibitor to each liter. The compound scale inhibitor can effectively prevent the scaling and the deposition of slightly soluble substances such as slightly soluble salts, metal hydroxides, SiO2, and the like on membrane surfaces, and meanwhile, the compound scale inhibitor can also effectively inhibit the breeding of bacteria and algae on the membrane surfaces and has the characteristics of wide adaptability, obvious scale inhibiting effect, lower cost, environmental protection, and the like.

Description

Be used to contain the composite scale inhibitor and the using method of vanadium desalting vanadium extracting waste water of shale
Technical field
The invention belongs to the antisludging agent technical field.Be specifically related to a kind of composite scale inhibitor and using method that is used to contain the vanadium desalting vanadium extracting waste water of shale.
Background technology
Contain that the vanadium vanadium extracting waste water of shale has salinity and salinity is higher, chlorine and heavy metal ion content height, be features (Study on pretreatment of extracting vanadium from stone coal waste water such as Ding Xiaotao " Wuhan University of Technology's journal " 2009) such as alkalescence after the preliminary treatment.Utilizing electrodialysis, counter-infiltration and nanofiltration technique that it is carried out in the desalination processes,, increasing cycles of concentration for the reclamation rate that improves waste water must improve the fresh water productive rate as far as possible, yet along with some indissoluble salt in the increase waste water of cycles of concentration, as CaSO 4, CaCO 3, BaSO 4, SrSO 4, CaF 2Deng forming dirt layer at face easily.In addition, in the long-time running process, some bacteriums and algae also are easy to grow at face, and these life-spans that not only greatly reduce film have also been improved operating cost simultaneously.Therefore must add suitable antisludging agent in the actual motion, prevent and reduce the face fouling and be easy to phenomenon such as pollution.
In existing antisludging agent, " a kind of antisludging agent that is used for counter-infiltration " (CN 1864826A) patented technology, its major function composition is that phosphorus is carboxylic acid, relatively poor and the non-oxidizability ability is also relatively poor to the inhibitory action of dirt such as sulfuric acid dirt, phosphate, be not suitable for the higher environment of hardness and basicity (phosphorus such as Sun Qing is the progress " Liaoning chemical industry " 2007 of water treatment agent, 36:276～278) in addition yet; " a kind of antisludging agent of reverse osmosis water treatment system " (CN 101172721A) patented technology, but its phosphorus content is higher, easily causes the eutrophication in waters, is unfavorable for environmental protection, the condition of water quality of also inapplicable in addition and high rigidity, high basicity; " a kind of composite scale inhibitor and application thereof that is used for counter-infiltration system " be patented technology (CN1796309A), though to CaCO 3And CaSO 4Certain scale inhibition effect is arranged, but this antisludging agent can't suppress bacterium and algae the growing of face, in addition in some cases to SiO 2Scale inhibition effect is not good, and this antisludging agent complicated component, and cost is higher.
Summary of the invention
The present invention is intended to overcome the prior art defective, and purpose provides composite scale inhibitor and the using method that simple, with low cost being used to of a kind of composition contains the vanadium desalting vanadium extracting waste water of shale.This composite scale inhibitor can effectively be eliminated the generation of face fouling, and inhibition and prevention bacterium and algae grow at face, and can prolong the cleaning frequency of reverse osmosis membrane and amberplex and the service life of film effectively, increase treatment scale, reduce processing cost.
For achieving the above object, the technical solution used in the present invention is: the component and the content thereof of this composite scale inhibitor are:
Polyepoxy sodium succinate is 30～35wt%;
2-phosphonic acids butane-1,2,4-tricarboxylic acids four sodium are 10～15wt%;
4-isothiazoline-3-ketone is 5～8wt%;
Sodium lignin sulfonate is 8～10wt%;
All the other are water;
Said components is fully stirred, mix and get final product.
Wherein: the molecular formula of polyepoxy sodium succinate is HO (C 4H 2O 5Na 2) nH, n are 2～12.
The composite scale inhibitor that is used to contain the vanadium desalting vanadium extracting waste water of shale of the present invention preparation, its using method is: when contain the vanadium vanadium extracting waste water of shale be middle soft and in during low basicity, every liter contains the antisludging agent that adds 8～12mg in the vanadium vanadium extracting waste water of shale; When containing the vanadium vanadium extracting waste water of shale and be high rigidity and high basicity, every liter contains the antisludging agent that adds 15～20mg in the vanadium vanadium extracting waste water of shale.
Wherein: hardness and basicity are all with CaCO 3Meter; In soft and in the condition of low basicity be: total hardness is 200～500mg/L, and total alkalinity is 50～100mg/L; The condition of high rigidity and high basicity is: total hardness is 500～800mg/L, and total alkalinity is 100～300mg/L.
Owing to adopt technique scheme, the vanadium vanadium extracting waste water of shale that contains that the present invention will add behind the antisludging agent utilizes counter-infiltration or electrodialysis to carry out desalting processing, phenomenons such as the decline of fresh water productive rate, pressure reduction increase do not appear in processing procedure, the film surface keeps clean, and does not find indissoluble salt, metal hydroxides and SiO 2Precipitation, do not observe bacterium and algae grows at face yet, show that this composite scale inhibitor has tangible scale inhibition and suppresses the effect that film pollutes.
The antisludging agent composition of the present invention's preparation is simple, with low cost, uses easily.What this antisludging agent not only was suitable for different hardness and basicity contains vanadium vanadium extracting waste water of shale water quality, can also prolong the cleaning frequency of reverse osmosis membrane and amberplex and the service life of film effectively, increases treatment scale, reduces processing cost.
Therefore, the present invention have wide adaptability, scale inhibition effect significantly, cost is lower and characteristics such as environmental friendliness, also can be used in other embrane method treatment systems such as micro-filtration, ultrafiltration.
The specific embodiment
The invention will be further described below in conjunction with the specific embodiment, is not the restriction to protection domain.
The prepared composite scale inhibitor of this specific embodiment is used to contain the vanadium vanadium extracting waste water of shale, contains the hardness of vanadium vanadium extracting waste water of shale and basicity all with CaCO 3Meter; In soft and in the condition of low basicity be: total hardness is 200～500mg/L, and total alkalinity is 50～100mg/L; The condition of high rigidity and high basicity is: total hardness is 500～800mg/L, and total alkalinity is 100～300mg/L.
Embodiment 1
A kind of composite scale inhibitor and using method that is used to contain the vanadium desalting vanadium extracting waste water of shale.The component and the content thereof of this composite scale inhibitor are:
Polyepoxy sodium succinate is 30～32wt%;
2-phosphonic acids butane-1,2,4-tricarboxylic acids four sodium are 10～12wt%;
4-isothiazoline-3-ketone is 5～6wt%;
Sodium lignin sulfonate is 8～9wt%;
All the other are water;
Said components is fully stirred, mix and get final product.
Wherein: the molecular formula of polyepoxy sodium succinate is HO (C 4H 2O 5Na 2) nH, wherein n is 2～8.
The using method that being used to of present embodiment contains the composite scale inhibitor of vanadium desalting vanadium extracting waste water of shale is: the main chemical composition that contains the vanadium vanadium extracting waste water of shale is as shown in table 1, for middle soft and in low basicity; Every liter contains the antisludging agent that adds 8～12mg in the vanadium vanadium extracting waste water of shale.
Table 1 contains the main chemical composition of vanadium vanadium extracting waste water of shale I
Project Total hardness Total alkalinity pH Ca 2+ Na + Cl - SO 4 2- Zn 2+ SiO 3 2-
Content (mg/L) 200～500 50～100 9～10 70～185 6800～8700 8400～ 10600 2200～ 3800 0.10～0.14 16～22
Embodiment 2
A kind of composite scale inhibitor and using method that is used to contain the vanadium desalting vanadium extracting waste water of shale.Be used to contain the composite scale inhibitor of vanadium desalting vanadium extracting waste water of shale with embodiment 1.The main chemical composition that contains the vanadium vanadium extracting waste water of shale is as shown in table 2, is high rigidity and high basicity; Every liter contains the antisludging agent that adds 15～20mg in the vanadium vanadium extracting waste water of shale.
Table 2 contains the main chemical composition of vanadium vanadium extracting waste water of shale II
Project Total hardness Total alkalinity pH Ca 2+ Na + Cl - SO 4 2- Zn 2+ SiO 3 2-
Content (mg/L) 500～800 100～300 9～10 80～280 7800～ 9700 10500～ 12900 2800～ 4200 0.10～0.14 28～36
Embodiment 3
A kind of composite scale inhibitor and using method that is used to contain the vanadium desalting vanadium extracting waste water of shale.The component and the content thereof of this composite scale inhibitor are:
Polyepoxy sodium succinate is 32～35wt%;
2-phosphonic acids butane-1,2,4-tricarboxylic acids four sodium are 12～15wt%;
4-isothiazoline-3-ketone is 6～8wt%;
Sodium lignin sulfonate is 9～10wt%;
All the other are water;
Said components is fully stirred, mix and get final product.
Wherein: the molecular formula of polyepoxy sodium succinate is HO (C 4H 2O 5Na 2) nH, wherein n is 6～12.
The using method that being used to of present embodiment preparation contains the composite scale inhibitor of vanadium desalting vanadium extracting waste water of shale is: the main chemical composition that contains the vanadium vanadium extracting waste water of shale is as shown in table 1, for middle soft and in low basicity: every liter contains the antisludging agent that adds 8～12mg in the vanadium vanadium extracting waste water of shale.
Embodiment 4
A kind of composite scale inhibitor and using method that is used to contain the vanadium desalting vanadium extracting waste water of shale.Be used to contain the composite scale inhibitor of vanadium desalting vanadium extracting waste water of shale with embodiment 3.The main chemical composition that contains the vanadium vanadium extracting waste water of shale is as shown in table 2, is high rigidity and high basicity; Every liter contains the antisludging agent that adds 15～20mg in the vanadium vanadium extracting waste water of shale.
The vanadium vanadium extracting waste water of shale that contains that embodiment 1～4 will add behind the antisludging agent utilizes counter-infiltration or electrodialysis to carry out desalting processing, phenomenons such as the decline of fresh water productive rate, pressure reduction increase do not appear in processing procedure, the film surface keeps clean, and does not find indissoluble salt, metal hydroxides and SiO 2Precipitation, do not observe bacterium and algae grows at face yet, show that this composite scale inhibitor has tangible scale inhibition and suppresses the effect that film pollutes.
The antisludging agent composition of this specific embodiment preparation is simple, with low cost, uses easily.What this antisludging agent not only was suitable for different hardness and basicity contains vanadium vanadium extracting waste water of shale water quality, can also prolong the cleaning frequency of reverse osmosis membrane and amberplex and the service life of film effectively, increases treatment scale, reduces processing cost.
This specific embodiment have wide adaptability, scale inhibition effect significantly, cost is lower and characteristics such as environmental friendliness, also can be used in other embrane method treatment systems such as micro-filtration, ultrafiltration.

Claims (3)

1. composite scale inhibitor that is used to contain the vanadium desalting vanadium extracting waste water of shale is characterized in that the component of this composite scale inhibitor and content thereof are:
Polyepoxy sodium succinate is 30～35wt%;
2-phosphonic acids butane-1,2,4-tricarboxylic acids four sodium are 10～15wt%;
4-isothiazoline-3-ketone is 5～8wt%;
Sodium lignin sulfonate is 8～10wt%;
All the other are water;
Said components is fully stirred, mix and get final product.
2. the composite scale inhibitor that is used to contain the vanadium desalting vanadium extracting waste water of shale according to claim 1, the molecular formula that it is characterized in that described polyepoxy sodium succinate is HO (C 4H 2O 5Na 2) nH, wherein n is 2～12.
3. the using method that is used to contain the composite scale inhibitor of vanadium desalting vanadium extracting waste water of shale as claimed in claim 1, it is characterized in that when contain the vanadium vanadium extracting waste water of shale be middle soft and in during low basicity, add the antisludging agent of 8～12mg in every liter of waste water; When waste water is high rigidity and high basicity, add the antisludging agent of 15～20mg in every liter of waste water;
Described hardness and basicity are all with CaCO 3Meter; In soft and in the condition of low basicity be: total hardness is 200～500mg/L, and total alkalinity is 50～100mg/L; The condition of high rigidity and high basicity is: total hardness is 500～800mg/L, and total alkalinity is 100～300mg/L.
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CN104071906B (en) * 2013-04-01 2016-04-13 湖北海翔化工科技有限公司 High-efficiency composite scale corrosion inhibitor
CN103964590A (en) * 2014-05-16 2014-08-06 山东大学 Environment-friendly efficient scale inhibitor of bittern

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5256303A (en) * 1992-07-20 1993-10-26 Nalco Chemical Company Method for inhibiting scale formation and/or dispersing iron in reverse osmosis systems
US5368740A (en) * 1993-04-23 1994-11-29 Betz Paperchem, Inc. Methods of controlling scale formation in the presence of metal ions in aqueous systems
CN101182643A (en) * 2007-11-22 2008-05-21 同济大学 Environment-friendly type composite pre-film reagent used for recirculated cooling water system pre-film processing and method of use thereof
CN101525185A (en) * 2009-04-13 2009-09-09 李洪社 Phosphorus-free corrosion and scale inhibitor and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5256303A (en) * 1992-07-20 1993-10-26 Nalco Chemical Company Method for inhibiting scale formation and/or dispersing iron in reverse osmosis systems
US5368740A (en) * 1993-04-23 1994-11-29 Betz Paperchem, Inc. Methods of controlling scale formation in the presence of metal ions in aqueous systems
CN101182643A (en) * 2007-11-22 2008-05-21 同济大学 Environment-friendly type composite pre-film reagent used for recirculated cooling water system pre-film processing and method of use thereof
CN101525185A (en) * 2009-04-13 2009-09-09 李洪社 Phosphorus-free corrosion and scale inhibitor and preparation method thereof

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