CN103979630A - Application of ferrite - Google Patents
Application of ferrite Download PDFInfo
- Publication number
- CN103979630A CN103979630A CN201410226877.2A CN201410226877A CN103979630A CN 103979630 A CN103979630 A CN 103979630A CN 201410226877 A CN201410226877 A CN 201410226877A CN 103979630 A CN103979630 A CN 103979630A
- Authority
- CN
- China
- Prior art keywords
- lead
- waste water
- ferrite
- separation
- sorbent material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention relates to an application of ferrite. The ferrite is used to adsorb lead in wastewater and an application method specifically comprises the following steps of adding ferrite to lead-containing wastewater according to a ratio of 0.4g/L-1.6g/L, controlling the temperature to 20-50 DGE C and fully reacting for 5-360 minutes to complete the lead removal process. The method for treating lead-containing wastewater with ferrite disclosed by the invention has the advantages of simple equipment, convenience to operation, fast speed, high efficiency, energy conservation and no phase change, the water is purified, heavy metal ions are enriched and recovered, the removal rate of lead can reach above 99.06%, and the method has unprecedented prospects in the field of heavy metal wastewater treatment.
Description
Technical field
The invention belongs to utilization of waste material and the large technical field of wastewater treatment two in environmental engineering, relate to a kind of ferritic purposes.
Background technology
Ferrite is a kind of composite oxides that formed, had ferrimagnetism by iron and other one or more metallic elements, also can be understood as a kind of ferromagnetic metal oxide that has.Ferrite can be divided into three major types type by crystalline structure difference, is respectively spinel type, carbuncle type and magneto-plumbite type ferrite.
Spinel lattice is a more complicated face-centred cubic structure, and chemical molecular formula can be used XY
2o
4represent, X and Y represent respectively divalence and trivalent metal cation, and X position can be that single divalent cation can be also divalent cation binding substances, and Y position can be that single Tricationic can be also the binding substances of Tricationic equally.Just because of this flexible Coexistence, can allow in pickling mud each metal ion species coupling coexist is stable in ferrite.Divalent cation has Mg
2+, Mn
2+, Fe
2+, Ni
2+, Co
2+, Cu
2+, Zn
2+deng; Tricationic has Al
3+, Cr
3+, Fe
3+, Mn
3+, Ni
3+deng, they are respectively in the space in spinel lattice.Various positively charged ions occupy the relative extent of the preferential trend of A in spinel type ferrite lattice or B position and can be expressed by following sequence: Zn
2+, Cd
2+, Mn
2+, Fe
3+, Cu
+, Fe
2+, Mg
2+, Li
+, Al
3+, Cu
2+, Co
2+, Mn
3+, Ni
2+, Cr
3+, from front to back, the trend that accounts for B position strengthens gradually, and the trend that accounts for A position weakens gradually.
The application and research of ferrospinel has had history its application now of decades to be not limited to soft magnetism and permanent magnet material, is also applied in sophisticated technology, as aspects such as radar, microwave (ultra-high frequency) multiplex communication, remote controls.Aspect water treatment, because ferrospinel has good magnetic and chemical stability, there is report with ferrite to be, other non-magnetic semiconductor catalysts in load, utilize the convenient recovery of magnetic, recycle.But supported catalyst technique comparatively after complexity and load magnetic reduce.Lead is the element that distributed in nature is very wide, is also one of normal element using in industry, at occurring in nature, mainly with sulphided form, exist, be only metallic state on a small quantity, and often and the element such as zinc, copper coexist.Lead and compound thereof are a kind of nondegradable environmental pollutant, can flow in a large number environment by waste water,waste gas and industrial residue, by food chain, soil, water and air, enter directly or indirectly human body, infringement hemopoietic system, cause anaemia, neural system peripheral nerve inflammation, also can flow into cerebral tissue with blood, infringement cerebellum and brain cortex cell, disturb metabolic activity, cause brain injury, and Toxicity of Lead is lasting, the transformation period reaches 10 years, be difficult for being discharged by human body, the Lead contamination of any degree all can have a negative impact to HUMAN HEALTH.Total lead in waste water is first kind pollutent, and lead waste water is as needed discharge, and total lead must reach first kind pollutent maximum permissible concentration emission standard at workshop discharge outlet.
At present, process heavy metal in waste water lead ion, industrial general employing chemical precipitation method, ion exchange method, electrolytic process.In addition, liquid-film method and biosorption process are the treatment processs of emerging lead waste water, at present in conceptual phase, are developing direction from now on.Mainly there is following defect in aforesaid method:
1, chemical precipitation method expense is high, treatment capacity is little, poor selectivity, sludge quantity are large, mud is difficult for processing, easily causing secondary pollution.
2, ion exchange method one-time investment is large, and working cost is high, resin vulnerable to pollution or oxidation deactivation, and regeneration is frequent, and also there is certain difficulty in regeneration problem.
When 3, electrolytic process is processed a large amount of waste water, energy consumption is large, and electrode metal consumption is large, is not suitable for high-concentration waste water.
4, liquid-film method is because liquid film technology difficulty is large, and, poor performance few for the preparation of the tensio-active agent kind of emulsifying agent liquid film, demulsification technology do not pass a test etc., have hindered the industrialization of this method.
5, biosorption process is subject to pH value, temperature, concentration of metal ions, biomembranous culture condition, the heavy metal ion that coexists etc. compared with multifactor impact.
Summary of the invention
The object of the present invention is to provide a kind of ferritic new purposes, described ferrite is for adsorbing the lead of waste water.
The technical solution that realizes the object of the invention is:
A ferritic purposes, described ferrite is for adsorbing the lead of waste water, and concrete steps are as follows:
1) regulate the pH value of lead waste water, then sorbent material ferrite is added in the reactor of lead waste water;
2) make the abundant hybrid reaction of sorbent material and lead waste water;
3), during adsorption equilibrium, adopt the method separation of iron oxysome of magnetic separation separation can obtain the liquid to be measured of clarification.
Wherein, step 1) in, lead waste water concentration is controlled at 10～50mg/L; Regulating the pH value of waste water is 2.5～6.5; The ferritic addition of sorbent material is 0.4g/L～1.6g/L.
Step 2) in, fully hybrid reaction is controlled temperature at 20～50 ℃, and stirring velocity is at 100～600rpm/min, and the reaction times is 5min～6h.
Step 3) in, the method for magnetic separation separation is selected magnet separation of iron oxysome.
Compared with prior art, its remarkable advantage is in the present invention:
1, this selects ferrite as sorbent material, and the coloured lead waste water of adsorption treatment is applied to clearance in lead waste water 4 hours can 99.06%.This ferrite sorbent material of clearance has stronger magnetic, available magnet is realized ferritic separation and reclaiming recycling easily, reusable sorbent material still has very high adsorption activity, has realized the efficient recycling of resource, is a kind of control useless and energy-conservation effective way.
2, the present invention adopts the lead waste water of ferrite adsorption treatment simulation, and this ferrite absorption is compared with traditional method, have equipment simple, easy to operate, quick, efficient, energy-conservation, without phase transformation, purified water quality, again enriching and recovering heavy metal ion.
Accompanying drawing explanation
The graph of a relation of adsorption time and plumbous waste water clearance in Fig. 1 embodiment of the present invention 1.
The graph of a relation of dosage and plumbous waste water clearance in Fig. 2 embodiment of the present invention 1.
Intake in Fig. 3 embodiment of the present invention 1 graph of a relation of lead concentration and plumbous waste water clearance.
The graph of a relation of the initial pH value of intaking in Fig. 4 embodiment of the present invention 1 and plumbous waste water clearance.
Embodiment
A ferritic purposes, described ferrite is for adsorbing the lead of waste water, and concrete steps are as follows:
1) regulate the pH value of lead waste water, then sorbent material ferrite is added in the reactor of lead waste water; Described lead waste water concentration is controlled at 10～50mg/L; Regulating the pH value of waste water is 2.5～6.5; The ferritic addition of sorbent material is 0.4g/L～1.6g/L.
2) make the abundant hybrid reaction of sorbent material and lead waste water; Fully hybrid reaction is controlled temperature at 20～50 ℃, and stirring velocity is at 100～600rpm/min, and the reaction times is 5min～6h.
3) during adsorption equilibrium, adopt the method separation of iron oxysome of magnetic separation separation can obtain the liquid to be measured of clarification, the method for magnetic separation separation is selected magnet separation of iron oxysome.
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Embodiment 1
The ferrite that the present invention selects is self-control, and the method for its preparation and Adsorption of Lead comprises following process and step:
1) steel pickling waste liquor mud is dried to 12h in 105 ℃, obtain the steel pickling waste liquor mud of mummification, grind, cross 100 mesh sieves;
2) take the above-mentioned mud of 1g and 1gFeCl24H2O and be added in 40mL ethylene glycol solution, at room temperature with the speed of 200rpm/min, stir 30min and dissolve completely to additional source of iron;
3) taking 5g sodium acetate and 2g polyoxyethylene glycol (2000) adds 2 successively) in described reaction soln, at room temperature the speed with 900rpm/min stirs 40min, forms even liquid-phase reaction solution;
4) proceed to and in reactor, carry out hydro-thermal reaction; At 200 ℃ of temperature, reaction 8h;
5) drive still after after completion of the reaction kettle being naturally cooled to room temperature; Magnetic separation separation obtains black ferrite, then uses absolute ethanol washing 5 times, and then 60 ℃ of vacuum are dried 12h, obtain ferrite;
6) sorbent material is added in the reactor of 50mg/L lead waste water; Sorbent material dosage is 0.4～1.6g/L
7), under room temperature, the speed stirring with 300rpm/min, makes the abundant hybrid reaction of sorbent material and lead waste water, starts timing.
8), during adsorption equilibrium, with magnet separation of iron oxysome, can easily obtain the liquid to be measured of clarification, without centrifugal wait.
Heavy Metals content (wt%) in the pickling mud that the present embodiment is used is for shown in following table 1:
Table 1 pickling main heavy metals in sludge content (wt%)
Ferrite adsorption treatment lead waste water prepared by the present embodiment
In order to determine the top condition of ferrite absorption Pb In Exhausted Water, first with simulated wastewater, carry out the adsorption test of series of influence factors.With lead nitrate, configure lead waste water, sorbent material is mixed with simulated wastewater, pack in Erlenmeyer flask, in constant-temperature shaking incubator, vibrate, abundant hybrid reaction, reacted mud mixture is got supernatant liquor through magnetic separation separation, utilizes ICP-AES to measure concentration plumbous in supernatant liquor.Clearance is calculated as follows:
Clearance (%)=(C0-C)/C0 * 100%, wherein C0 is the concentration of the front solution of absorption, C is the concentration of solution after adsorbing.
The impact of different affecting factors on plumbous waste water clearance
(1) impact of adsorption time on plumbous waste water clearance
The lead solution 500mL that accurately measures starting point concentration and be 50mg/L is placed in beaker, and beaker is placed on machine mixer, controls rotating speed 300r/min, 25 ℃ of temperature; Take 0.6g ferrite and add and wherein carry out adsorption experiment, and within the different time period (0～360min) sampling analysis.Mixed solution after 0.45 μ m filter membrane, measure in filtrate plumbous concentration.After 120min, reach balance, clearance is 98.91%.
(2) impact of sorbent material dosage on plumbous waste water clearance
Getting 4 parts of concentration is 50mg/L, simulated wastewater 500mL, pack in Erlenmeyer flask with cover, add respectively 0.2g simultaneously, 0.4g, 0.6g, 0.8g sorbent material, under this condition, maximum adsorption capacity is 41.21mg/g.(shown in accompanying drawing 1), 25 ℃ of room temperatures, rotating speed is under 200r/min, adsorption time 4h, and mixed solution is measured concentration plumbous in filtrate after 0.45 μ m filter membrane.Discovery is along with the increase of dosage, and clearance increases, but amplification is little, and when dosage is 0.8g/500mL, plumbous clearance has reached 99.08%.(shown in accompanying drawing 2)
(3) impact of the initial influent concentration of lead waste water on clearance
Get 7 parts of concentration be respectively 10mg/L20mg/L, 40mg/L, 50mg/L60mg/L, 80mg/L, 100mg/L,, simulated wastewater 100mL, pack in Erlenmeyer flask with cover, add respectively 0.27g sorbent material simultaneously, 25 ℃ of room temperatures, rotating speed is under 200r/min, adsorption time 4h, and mixed solution is measured concentration plumbous in filtrate after 0.45 μ m filter membrane.Discovery is along with the increase of plumbous starting point concentration, and loading capacity is also in continuous increase.(shown in accompanying drawing 3)
(4) impact of the initial water inlet pH value of lead waste water on clearance
Get 7 parts of concentration 50mg/L,, simulated wastewater 100mL, pack in Erlenmeyer flask with cover, add respectively 0.05g sorbent material simultaneously, 25 ℃ of room temperatures, rotating speed is under 200r/min, adsorption time 4h, mixed solution is measured in filtrate plumbous concentration after 0.45 μ m filter membrane.Discovery is along with the increase of pH, and loading capacity is also in continuous increase.Under this condition, maximum adsorption capacity is 97.53mg/g.(shown in accompanying drawing 4)
Embodiment 2
Ferritic preparation as described in Example 1, is added to 0.2g sorbent material in the reactor that 500mL concentration is 10mg/L lead waste water; Under room temperature, the speed stirring with 300rpm/min, makes the abundant hybrid reaction 4h of sorbent material and lead waste water.During adsorption equilibrium, with magnet separation of iron oxysome, recording adsorption rate is 99.31%.
Embodiment 3
Ferritic preparation as described in Example 1, is added to 0.4g sorbent material in the reactor that 500mL concentration is 40mg/L lead waste water 0; Under room temperature, the speed stirring with 300rpm/min, makes the abundant hybrid reaction 4h of sorbent material and lead waste water.During adsorption equilibrium, with magnet separation of iron oxysome, recording adsorption rate is 99.56%
Embodiment 4
Ferritic preparation as described in Example 1, is added to 0.6g sorbent material in the reactor that 500mL concentration is 50mg/L lead waste water; Under room temperature, the speed stirring with 300rpm/min, makes the abundant hybrid reaction 4h of sorbent material and lead waste water.During adsorption equilibrium, with magnet separation of iron oxysome, recording adsorption rate is 98.31%.
Above-mentioned ferritic preparation is not limited only to the method described in the present embodiment, can be commercial or adopt other to prepare ferritic method.
Claims (4)
1. a ferritic purposes, is characterized in that, described ferrite is for adsorbing the lead of waste water, and concrete steps are as follows:
1) regulate the pH value of lead waste water, then sorbent material ferrite is added in the reactor of lead waste water;
2) make the abundant hybrid reaction of sorbent material and lead waste water;
3), during adsorption equilibrium, adopt the method separation of iron oxysome of magnetic separation separation can obtain the liquid to be measured of clarification.
2. purposes according to claim 1, is characterized in that: step 1) in, lead waste water concentration is controlled at 10～50mg/L; Regulating the pH value of waste water is 2.5～6.5; The ferritic addition of sorbent material is 0.4g/L～1.6g/L.
3. purposes according to claim 1, is characterized in that: step 2) in, fully hybrid reaction is controlled temperature at 20～50 ℃, and stirring velocity is at 100～600rpm/min, and the reaction times is 5min～6h.
4. purposes according to claim 1, is characterized in that: step 3) in the method for magnetic separation separation select magnet separation of iron oxysome.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410226877.2A CN103979630A (en) | 2014-05-26 | 2014-05-26 | Application of ferrite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410226877.2A CN103979630A (en) | 2014-05-26 | 2014-05-26 | Application of ferrite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103979630A true CN103979630A (en) | 2014-08-13 |
Family
ID=51271836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410226877.2A Pending CN103979630A (en) | 2014-05-26 | 2014-05-26 | Application of ferrite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103979630A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105859014A (en) * | 2016-05-25 | 2016-08-17 | 安徽普氏生态环境工程有限公司 | Magnetic separation special industry water treatment device |
| CN106281331A (en) * | 2015-05-18 | 2017-01-04 | 南京凯杰环境技术有限公司 | A kind of manufacture method of ferrum system heavy metal-polluted soil immobilization material |
| CN111330578A (en) * | 2020-03-23 | 2020-06-26 | 广东工业大学 | Preparation method and application of heavy metal-containing ferrite catalyst |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004330044A (en) * | 2003-05-06 | 2004-11-25 | Denki Kagaku Kogyo Kk | Harmful substance sorbent material, and environmental clarification method using the same |
| CN101503229A (en) * | 2009-03-11 | 2009-08-12 | 哈尔滨工程大学 | Method for treating organic wastewater by using ferrite as adsorbing agent |
| CN102578149A (en) * | 2012-01-14 | 2012-07-18 | 哈尔滨工程大学 | Magnetic sterilizing material as well as preparation method and application method thereof |
| CN103191699A (en) * | 2013-04-23 | 2013-07-10 | 北京化工大学 | Ferrite/graphene composite adsorbent and preparation and using methods thereof |
| CN103723788A (en) * | 2014-01-09 | 2014-04-16 | 江苏省环境科学研究院 | Method for adsorbing heavy metal ions by manganese ferrite nanoparticle and graphene compound |
-
2014
- 2014-05-26 CN CN201410226877.2A patent/CN103979630A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004330044A (en) * | 2003-05-06 | 2004-11-25 | Denki Kagaku Kogyo Kk | Harmful substance sorbent material, and environmental clarification method using the same |
| CN101503229A (en) * | 2009-03-11 | 2009-08-12 | 哈尔滨工程大学 | Method for treating organic wastewater by using ferrite as adsorbing agent |
| CN102578149A (en) * | 2012-01-14 | 2012-07-18 | 哈尔滨工程大学 | Magnetic sterilizing material as well as preparation method and application method thereof |
| CN103191699A (en) * | 2013-04-23 | 2013-07-10 | 北京化工大学 | Ferrite/graphene composite adsorbent and preparation and using methods thereof |
| CN103723788A (en) * | 2014-01-09 | 2014-04-16 | 江苏省环境科学研究院 | Method for adsorbing heavy metal ions by manganese ferrite nanoparticle and graphene compound |
Non-Patent Citations (2)
| Title |
|---|
| XIANGYU HOU等: "Synthesis and adsorption properties of spongelike porous MnFe2O4", 《COLLOIDS AND SURFACES A: PHYSICOCHEMICAL AND ENGINEERING ASPECTS》, no. 363, 20 March 2010 (2010-03-20), pages 1 - 7 * |
| YUEMING REN等: "Adsorption of Pb(II) and Cu(II) from aqueous solution on magnetic porous ferrospinel MnFe2O4", 《JOURNAL OF COLLOID AND INTERFACE SCIENCE》, no. 367, 25 October 2011 (2011-10-25) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106281331A (en) * | 2015-05-18 | 2017-01-04 | 南京凯杰环境技术有限公司 | A kind of manufacture method of ferrum system heavy metal-polluted soil immobilization material |
| CN105859014A (en) * | 2016-05-25 | 2016-08-17 | 安徽普氏生态环境工程有限公司 | Magnetic separation special industry water treatment device |
| CN111330578A (en) * | 2020-03-23 | 2020-06-26 | 广东工业大学 | Preparation method and application of heavy metal-containing ferrite catalyst |
| CN111330578B (en) * | 2020-03-23 | 2023-07-25 | 广东工业大学 | Preparation method and application of ferrite catalyst containing heavy metal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105381780B (en) | A kind of magnetic adsorbent for adsorbing superconduction Magneto separate arsenic removal antimony and preparation method thereof | |
| CN104941574B (en) | A kind of inorganic ions modified zeolite composite and its application | |
| CN101337707B (en) | Method for processing dimethylamine waste water by ion-exchange method | |
| CN112076752B (en) | MOF-74 derived magnetic composite catalyst and preparation method and application thereof | |
| CN104307868A (en) | Method for removing hexavalent chromium from polluted soil | |
| CN105439272B (en) | Ferrite MFe2O4Magnetic nanoparticle is for method of removal waste water containing tellurium and application thereof | |
| CN103979630A (en) | Application of ferrite | |
| CN108484929A (en) | A kind of metal organic frame synthesis MIL-53 (Al)-AO based on amidoxime2Preparation method | |
| CA2954605C (en) | Ion exchange resin and method for adsorbing and separating metal | |
| CN106587187A (en) | Preparation method for composite material for micro-polluted water treatment | |
| CN103721689A (en) | Magnetic meso-porous silicon, preparation method of magnetic meso-porous silicon, magnetic meso-porous silicon adsorbent, preparation method and application of magnetic meso-porous silicon adsorbent | |
| CN108503749B (en) | Preparation method of uranyl ion imprinted polymer material | |
| CN107381705B (en) | Method for separating and recovering multiple cationic heavy metals in water through phase change regulation | |
| CN114160136B (en) | Preparation method of copper-iron-attapulgite-chitosan catalyst applied to heterogeneous Fenton-like system under condition of wide pH range | |
| CN105950864A (en) | Method for deep separation of vanadium from molybdate by utilizing magnetic iron oxide as adsorbent | |
| CN110302744A (en) | A kind of Metallurgical Waste Water magnetic nanometer adsorbent and preparation method thereof | |
| CN102863043B (en) | Organic hydrotalcite synthesis and wastewater treatment integrated technique | |
| CN102350296B (en) | Preparation method of magnetic mesoporous adsorption material for cationic dye | |
| CN211255522U (en) | Nickel-containing wastewater treatment device | |
| CN102616901A (en) | Preparation of magnetic cucurbituril and application of magnetic cucurbituril in removing HA (humic acid) pollutants from drinking source water | |
| CN103663888B (en) | Pretreatment method of sludge | |
| CN107335399B (en) | Method for separating and recovering heavy metal anions and cations in water through phase change regulation | |
| CN110669923A (en) | Method for removing arsenic by limonite and copper slag through adsorption | |
| CN105521711B (en) | The removal methods of heavy metal ion in a kind of renewable organic amine desulfurizing agent | |
| CN110357164A (en) | The method that manganese oxide ore pulp recycles high-efficiency flue gas desulfurization coupling manganese sulfate green purifying |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140813 |