CN102671617B - Preparation method of material for adsorption of non-biodegradable organic pollutant - Google Patents
Preparation method of material for adsorption of non-biodegradable organic pollutant Download PDFInfo
- Publication number
- CN102671617B CN102671617B CN201210132187.1A CN201210132187A CN102671617B CN 102671617 B CN102671617 B CN 102671617B CN 201210132187 A CN201210132187 A CN 201210132187A CN 102671617 B CN102671617 B CN 102671617B
- Authority
- CN
- China
- Prior art keywords
- solution
- mixed
- preparation
- weight
- organic pollutants
- 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.)
- Active
Links
Landscapes
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention relates to a preparation method of a material for adsorption of non-biodegradable organic pollutants. Nano-iron, magnesium salt, aluminum salt and caustic soda are used as inorganic reactants, and an anionic surfactant is used as a functional agent. The anionic surfactant and the nano-iron are well mixed, the mixture is added into mixed solution of the caustic soda and the aluminum salt, mixture is well mixed, the magnesium salt solution is added slowly, and the solution is mixed for 10-30 minutes, kept static for more than 12 hours and separated to obtain a blue precipitate, i.e. the material for adsorption of dyes, persistent organic materials and other non-biodegradable organic pollutants. The material is added into organic wastewater at 0.1-1 percent and has good adsorption properties and magnetic separation properties. The preparation method has the advantages that raw materials can be obtained easily, the process is simple, the cost is low, a large number of dyes or hydrophobic organic materials can be absorbed by the product and good effects of magnetic separation can be achieved. Therefore, the preparation method can be applied in adsorption of organic industrial wastewater.
Description
Technical field
The present invention relates to a kind ofly for adsorbing the preparation method of the material of persistent organic pollutants, specifically process the production technology of the sorbing material of organic wastewater.Belong to environmental pollution control field.
Background technology
In the production processes such as dyestuff, medicine, agricultural chemicals, chemical industry, produced a large amount of discharge of wastewater in environment, high-enriched organics, particularly persistence organic pollutant bring serious disaster to the mankind and ecological environment.For example, the dyestuff that surpasses 10000 kinds is commercially produced, and wherein the 5%-10% of use amount enters in water environment.In dye molecule, mostly contain aromatic radical structure, fast light, heat-resisting, resistance to oxidation, some dyestuff can cause allergy, dermatitis, red swelling of the skin, even can bring out cancer, gene mutation etc.Therefore, before entering natural water, must remove Organic Pollutants in Wastewater.Method for processing organic wastewater mainly contains Physical, chemical method, bioanalysis.Physical mainly comprises: membrane separation process, magnetic separation method and absorption method.Membrane separation process processing is organic starts from the beginning of the seventies in last century with color waste water.But the price of film is higher, and replacement frequency is very fast, and processing cost is higher.Magnetic separation method is the difference of utilizing element or component magnetic susceptibility, by external magnetic field, material is carried out to magnetic field processing, thereby reaches the separated process of strengthening, has become an emerging water technology at present.Absorption is to utilize more surperficial solids with porous as adsorbent, and when waste water contacts with adsorbent, thereby in waste water, one or several pollutants are attracted to the object that the surface of solids reaches purification of waste water.In treatment of Organic Wastewater, absorption method is mainly as the advanced treating after pretreatment or biochemistry.The range of application of absorption method is more extensive, there is no selectivity.Adsorbent is divided into two kinds of artificial and natural adsorbents, conventional adsorbent has active carbon, aluminium oxide, wood chip, natural clay, paddy rice abrasive dust waste material, silica gel, hydroxide, mud, microorganism live body or dead cell etc., but time of equilibrium adsorption is long mostly, after regeneration, successful reduces, poor selectivity, COD (COD) reduction amplitude is little.Charcoal absorption is at present most widely used organic and color method of wastewater treatment, but the charcoal absorption time is long, and reproduction ratio is more difficult.Bentonite is large at China's reserves, low price.People's conventional surfactant modified alta-mud, the comparable original soil of absorption property exceeds 1～2 order of magnitude.During for treatment of Organic Wastewater, finishing easily produces surfactant desorption, although organic concentration reduces in waste water, COD reduces not obvious.Chemical method is mainly divided into coagulant sedimentation, oxidizing process and electrochemical method.Coagulating sedimentation technology is waste water to be carried out to the key step of coagulation.It is the charged characteristic that utilizes dyestuff itself, the sewage of two or more oppositely chargeds is mixed and is processed, or utilize coagulant and the mixed a kind of technology processed of sewage.What in flocculation sediment process, play a major role is flocculant, but traditional low-molecular-weight flocculant injected volume is large, and sludge output is many.Some are water-soluble processing for conventional coagulant, particularly, when processing the dye of positive ion, active dye wastewater, adopt separately the decolorizing effect of flocculant undesirable.Oxidizing process is divided into chemical oxidization method and advanced oxidation processes, is all the treatment process that the chromophore of dyestuff is decoloured because of Oxidative demage.High-level oxidation technology comprises wet oxidation process, Fenton reagent method and photocatalytic oxidation etc., have good decoloring ability, but cost is higher, and it is bad that COD reduces effect.Electrochemical techniques are processed waste water and are had the several functions such as redox, cohesion, sterilizing and absorption, but exhaustive oxidation decomposes organic pollutants, and energy consumption is higher, and equipment cost is also higher.Adopt microbial method that organic matter adsorb in recent years and grown up gradually, the method has no waste, the utilization advantage such as completely, but the decolouring cycle is long, and has certain requirement for environment.Therefore because the organic pollution harm that particularly persistence organic pollutant causes environmental and human health impacts is large, design prepares that adsorption efficiency is high, absorption and the good novel absorption material of separating property come pollution abatement significant.
Summary of the invention
The object of the invention is to disclose a kind of material preparation method for Typical Organic Pollutants absorption.By the inventive method, obtain the sorbing material of persistent organic pollutants (dyestuff, persistence organic pollutant etc.), for the adsorption treatment of organic wastewater, and adsorption capacity is large, easily separated and can recycling.
To achieve these goals, it is inorganic raw material that the present invention selects magnesium salts, aluminium salt, Nanoscale Iron, caustic soda, wherein magnesium salts raw material comprises magnesium chloride and magnesium nitrate, and aluminium salt raw material comprises aluminum sulfate and aluminum nitrate, and anion surfactant comprises Alkylbenzensulfonate or many sodium alkyl sulfates.After anion surfactant is mixed with Nanoscale Iron, add in the mixed solution of aluminium salt and soda ash, after mixing, then with magnesium salt solution hybrid reaction, sediment separate out is the sorbing material for persistent organic pollutants (dyestuff, persistence organic pollutant etc.).
Concrete technology is as follows:
The first step, the selection of raw material and preparation
Commercially available technical grade magnesium chloride or magnesium nitrate are added to water, be mixed with weight percent concentration and be 10～30% solution A;
Commercially available technical grade aluminum nitrate or aluminum sulfate are added to water, and to be mixed with weight percent concentration be 5～30% solution B;
By adding water in commercially available technical grade anion surfactant, to be mixed with concentration expressed in percentage by weight be 1～2% solution C;
Selecting commercially available Nanoscale Iron is raw material, and in Nanoscale Iron, adding water, to be mixed with concentration expressed in percentage by weight be 1～5% solution D;
Commercially available technical grade caustic soda is added to water, and to make concentration expressed in percentage by weight be 5～20% solution E.
Above-mentioned anion surfactant is dodecyl sodium sulfate, or myristyl sodium sulfonate, or sodium cetanesulfonate, or octadecyl sodium sulfonate, or neopelex.
Above-mentioned Nanoscale Iron is the iron powder of commercially available particle diameter 20nm;
Second step, the preparation of material
First, equivalent measures above-mentioned A by weight, B, C, D, E solution, solution C is mixed with solution D and within 10～30 minutes, obtain a kind of liquid, again solution B is mixed with solution E, stirring and dissolving obtains another kind of liquid, then two kinds of liquid are mixed, under stirring, again solution A is slowly added wherein, stirring reaction obtains reactant liquor for 10～30 minutes, by still aging 12～24 hours of reactant liquor, finally, at reactor bottom, place magnet piece, after 2 hours, discard clarified solution, the blue sediment that the bottom of reactor stays, be for adsorbing the material of persistent organic pollutants,
The 3rd step, the preservation of material or use
The material of these absorption persistent organic pollutants is added to water, and being mixed with percentage by weight is 3～10% fluid products, is directly used in absorption persistent organic pollutants;
Maybe the material of these absorption persistent organic pollutants is dried, pulverized, make the powder product of being convenient to storage and transport.
Above-mentionedly at reactor bottom, placing magnet piece, is to use 20 centimetres of commercially available diameters, the disk magnet of thick 2 centimetres according to 3000ml reactant liquor, and magnet piece is provided by Shanghai Jin Kun magnetoelectricity Science and Technology Ltd..
Above-mentioned the 3rd step is directly used in absorption persistent organic pollutants, to colourity, be in 1～100,000 degree waste water from dyestuff or concentration 10～5000mg/l organic wastewater, to add be weight percentage 3～10% fluent material of the concentration preparing, fluent material dosage is 2～20% percents by volume of wastewater volume, stir 5～30 minutes, in waste water bottom, place 10～20 centimetres of diameters, thickness is the magnet 10～30 minutes of 1～2 centimetre, adsorption precipitation thing the has been enrichment residue of organic pollution, residue is through high-temperature roasting, decompose the organic substance adsorbing, obtain the magnetic inorganic material of reusable edible.
Advantage of the present invention is as follows:
1. to have technique simple in the present invention, the advantages such as raw material is easy to get, low price.
2. the product that the present invention obtains has good absorption property to persistent organic pollutants, comprise basic-dyeable fibre, the dye of positive ion, disperse dyes, organic amine, organochlorine and organophosphorus insecticide, bactericide, surfactant, hair dye, endocrine interferon, antibiotic etc., adsorption rate 60～100%.
3. compare with traditional adsorbent, the material that the present invention obtains can directly be distributed to and in waste water, adsorb organic pollution, then separated by magnet, does not need to use the means such as filter, centrifugal, have that effective, speed is fast, the advantages such as power saving that save time, in treatment of Organic Wastewater, have larger application potential.
4. the residue after using can decompose the organic matter adsorbing through high-temperature roasting, and preparation can be used for the magnetic adsorbent of Adsorption of Heavy Metals.
The specific embodiment
Embodiment 1
The first step, the selection of raw material and preparation
Select commercially available technical grade magnesium chloride or magnesium nitrate, water is added wherein, be mixed with weight percent concentration and be 10% solution, referred to as solution A;
Select commercially available technical grade aluminum nitrate or aluminum sulfate, water is added wherein, be mixed with weight percent concentration and be 20% solution, referred to as solution B;
Select commercially available technical grade neopelex, water is added wherein, be mixed with concentration expressed in percentage by weight and be 1% solution, referred to as solution C;
Selecting commercially available Nanoscale Iron is raw material, and Nanoscale Iron is the iron powder of particle diameter 20nm, adds water in Nanoscale Iron, and being mixed with concentration expressed in percentage by weight is 1% solution, referred to as solution D;
Commercially available technical grade caustic soda is added to water, and making concentration expressed in percentage by weight is 5% solution, referred to as solution E.
Second step, the preparation of material
First, equivalent measures above-mentioned A, B, C, D, each 500ml of E solution by weight, and solution C is mixed with solution D 20 minutes, solution B is mixed with solution E, stirring and dissolving, then mixes two liquid, stir again, again solution A is slowly added wherein, stirring reaction 20 minutes, by still aging 12 hours of reactant liquor, last, at reactor bottom, place magnet piece, after 2 hours, discard clarified solution, the blue sediment that the bottom of reactor stays, is the material that adsorbs persistent organic pollutants;
Blue sediment is mixed with to the liquid that percentage by weight is 5% material, is directly used in absorption persistent organic pollutants.
Embodiment 2
Waste water from dyestuff adsorption treatment: get 1000ml synthetic dyestuffs factory methyl blue waste water in beaker, adding the outward appearance that embodiment 1 prepares is fluent material 100ml blue, that content is 5%, stir after 20 minutes, below beaker, pasting end placement diameter is 20cm magnet piece, standing 30 minutes.Testing result shows: in raw wastewater, colourity is 24500 degree, colourity 30 degree in clarified solution after adsorption treatment, clearance 99.9%.Therefore, this material has good treatment effect to waste water from dyestuff.
Residue roasting 2 hours under 500 degree, decomposes the organic matter adsorbing, and being ground into still can be by magnet adsorption after powder, and the magnetic adsorbent that can be used as heavy metal continues to use.
Embodiment 3
Agricultural chemicals waste water adsorption treatment: get 1000ml insecticide factory phoxim waste water in beaker, adding the outward appearance that embodiment 1 prepares is fluent material 60ml blue, that content is 5%, stir after 20 minutes, below beaker, pasting end placement diameter is 20cm magnet piece, standing 20 minutes.Testing result shows: in raw wastewater, phoxim concentration is 120mg/l, and after adsorption treatment, in clarified solution, phoxim concentration is 15mg/l, clearance 87.5%.Therefore, this material has good treatment effect to hydrophobicity organic wastewater.
Claims (2)
1. for adsorbing a preparation method for the material of persistent organic pollutants, it is characterized in that:
The first step, raw material is selected and preparation
Commercially available technical grade magnesium chloride or magnesium nitrate are added to water, be mixed with concentration expressed in percentage by weight and be 10～30% solution A; To in commercially available technical grade aluminum nitrate or aluminum sulfate, add water, be mixed with concentration expressed in percentage by weight and be 5～30% solution B; In commercially available technical grade anion surfactant, add water, be mixed with concentration expressed in percentage by weight and be 1～2% solution C; In Nanoscale Iron, adding water, to be mixed with concentration expressed in percentage by weight be 1～5% solution D; In commercially available technical grade caustic soda, adding water, to make concentration expressed in percentage by weight be 5～20% solution E;
Above-mentioned anion surfactant is dodecyl sodium sulfate, or myristyl sodium sulfonate, or sodium cetanesulfonate, or octadecyl sodium sulfonate, or neopelex;
Above-mentioned Nanoscale Iron is the iron powder that commercially available particle diameter is 20nm;
Second step, the preparation of material
First, equivalent measures above-mentioned A by weight, B, C, D, E solution, then solution C is mixed with solution D and within 10～30 minutes, obtain a kind of liquid respectively, solution B is mixed with solution E, stirring and dissolving obtains another kind of liquid, then above-mentioned two kinds of liquid are mixed, stir, again solution A is slowly added wherein, stirring reaction obtains reactant liquor for 10～30 minutes, by still aging 12～24 hours of reactant liquor, finally, at reactor bottom, place magnet piece, after 2 hours, discard clarified solution, the blue sediment that the bottom of reactor stays, be the material of absorption persistent organic pollutants,
The 3rd step, the preservation of material or use
The material of these absorption persistent organic pollutants is added to water, and being mixed with percentage by weight is 3～10% fluid products, is directly used in absorption persistent organic pollutants; Maybe the material of these absorption persistent organic pollutants is dried, pulverized, make the powder product of being convenient to storage and transport.
2. a kind of preparation method of adsorbing the material of persistent organic pollutants according to claim 1, it is characterized in that: describedly at reactor bottom, placing magnet piece, is to use 20 centimetres of commercially available diameters, the disk magnet metering of thick 2 centimetres according to 3000ml reactant liquor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210132187.1A CN102671617B (en) | 2012-05-02 | 2012-05-02 | Preparation method of material for adsorption of non-biodegradable organic pollutant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210132187.1A CN102671617B (en) | 2012-05-02 | 2012-05-02 | Preparation method of material for adsorption of non-biodegradable organic pollutant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102671617A CN102671617A (en) | 2012-09-19 |
| CN102671617B true CN102671617B (en) | 2014-03-05 |
Family
ID=46804557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210132187.1A Active CN102671617B (en) | 2012-05-02 | 2012-05-02 | Preparation method of material for adsorption of non-biodegradable organic pollutant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102671617B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014315B (en) * | 2014-06-06 | 2016-04-06 | 黄淮学院 | A kind of chitin modified zeolite of sulfydryl phenylthiosemicarbazide and preparation and application thereof |
| CN109647401B (en) * | 2018-12-14 | 2020-10-02 | 华中科技大学 | Three-dimensional porous graphene composite material and preparation method and application thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950011929B1 (en) * | 1991-10-17 | 1995-10-12 | 한국과학기술연구원 | Water treatment method by chalff |
| ES2324739T3 (en) * | 2007-06-15 | 2009-08-13 | Omya Development Ag | CALCICO CARBONATE TREATED BY SURFACE REACTION IN COMBINATION WITH HYDROPHOBIC ADSORBENT FOR WATER TREATMENT. |
| CN101318123A (en) * | 2008-07-21 | 2008-12-10 | 郜洪文 | Anionic surface active agent-calcium based composite adsorption material and preparation method thereof |
| CN101774664A (en) * | 2010-02-04 | 2010-07-14 | 中国科学院广州地球化学研究所 | Method for removing cationic dye and hydrophobic organic pollutants in waste water simultaneously |
-
2012
- 2012-05-02 CN CN201210132187.1A patent/CN102671617B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102671617A (en) | 2012-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Sardar et al. | Remediation of dyes from industrial wastewater using low-cost adsorbents | |
| CN102659221B (en) | Electro-catalytic oxidation material for wastewater treatment, preparation method and application | |
| Gupta et al. | Adsorption studies on the removal of Vertigo Blue 49 and Orange DNA13 from aqueous solutions using carbon slurry developed from a waste material | |
| CN101298038B (en) | Gel adsorbing agent for wastewater treatment | |
| Song et al. | Biocompatible G-Fe3O4/CA nanocomposites for the removal of Methylene Blue | |
| CN101670266A (en) | Method for removing organic cationic dyes from waste water by magnetic nano adsorption material | |
| Sharma et al. | Study of removal techniques for azo dyes by biosorption: a review | |
| CN104258816B (en) | The preparation method of the exfoliated Nano composite material of montmorillonite of a kind of magnetic for wastewater treatment | |
| CN101310853B (en) | Calcium adsorbing material and its preparation method | |
| CN104437423B (en) | Anaerobic organism fluidized bed mixed carrier for treating industrial wastewater and application | |
| CN103418338B (en) | Concave soil adsorption material carrying manganite and method for removing S2- in tannery wastewater | |
| US11638910B1 (en) | Lanthanum-iron-loaded carbon nanotube film for environmental restoration, preparation and application thereof | |
| WO2022193674A1 (en) | Magadiite/polypyrrole adsorption material for treating rhodamine b wastewater and preparation method and application of magadiite/polypyrrole adsorption material | |
| CN109453753A (en) | A kind of floating vapor and its preparation method and application | |
| CN103991919B (en) | A kind of coal dust makes the using method of gelatin liquefaction waste water and dyeing waste water sorbent material | |
| CN101318122B (en) | Anionic surface active agent-barium sulfate composite adsorption material and preparation method thereof | |
| CN101318123A (en) | Anionic surface active agent-calcium based composite adsorption material and preparation method thereof | |
| CN102671617B (en) | Preparation method of material for adsorption of non-biodegradable organic pollutant | |
| Nopkhuntod et al. | Removal of reactive dyes from wastewater by shale | |
| CN101249415A (en) | Barium based adsorption material and method of preparing the same | |
| CN113578253A (en) | Self-floating adsorbent based on hollow glass beads and preparation method and application thereof | |
| CN107473326B (en) | Acidic TiO2Combined method for degrading dye wastewater by hydrosol regeneration aerobic granular sludge | |
| Bazrafshan et al. | Equilibrium and thermodynamics studies for decolorization of reactive black 5 by adsorption onto acid modified banana leaf ash | |
| CN104944564B (en) | A kind of remove the preparation method of the reducing agent of nitrate in water | |
| CN101306346B (en) | Acid brilliant pink-calcium oxalate adsorbing material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |