CN104722280A - Modified nanometer titania/konjaku flour composite heavy metal adsorber and preparation method thereof - Google Patents
Modified nanometer titania/konjaku flour composite heavy metal adsorber and preparation method thereof Download PDFInfo
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- 235000013312 flour Nutrition 0.000 title claims abstract description 25
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 24
- 229920002752 Konjac Polymers 0.000 title claims abstract description 19
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000002131 composite material Substances 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 13
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 8
- 239000000661 sodium alginate Substances 0.000 claims abstract description 8
- 235000010413 sodium alginate Nutrition 0.000 claims abstract description 8
- 229940005550 sodium alginate Drugs 0.000 claims abstract description 8
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims abstract description 8
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims abstract description 8
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 7
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 7
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims abstract description 7
- MBLBDJOUHNCFQT-LXGUWJNJSA-N aldehydo-N-acetyl-D-glucosamine Chemical compound CC(=O)N[C@@H](C=O)[C@@H](O)[C@H](O)[C@H](O)CO MBLBDJOUHNCFQT-LXGUWJNJSA-N 0.000 claims abstract description 7
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000004327 boric acid Substances 0.000 claims abstract description 7
- 239000001110 calcium chloride Substances 0.000 claims abstract description 7
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 7
- 239000001814 pectin Substances 0.000 claims abstract description 7
- 235000010987 pectin Nutrition 0.000 claims abstract description 7
- 229920001277 pectin Polymers 0.000 claims abstract description 7
- 235000009566 rice Nutrition 0.000 claims abstract description 7
- 239000004299 sodium benzoate Substances 0.000 claims abstract description 7
- 235000010234 sodium benzoate Nutrition 0.000 claims abstract description 7
- 229940048109 sodium methyl cocoyl taurate Drugs 0.000 claims abstract description 7
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 23
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 21
- 150000001875 compounds Chemical class 0.000 claims description 15
- 239000003463 adsorbent Substances 0.000 claims description 11
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 9
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims description 6
- 241000209094 Oryza Species 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 6
- 235000009508 confectionery Nutrition 0.000 claims description 6
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 6
- 239000012467 final product Substances 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 235000012054 meals Nutrition 0.000 claims description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims description 6
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 6
- 229920000053 polysorbate 80 Polymers 0.000 claims description 6
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 6
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 6
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 6
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 claims description 4
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 claims description 3
- 239000001201 calcium disodium ethylene diamine tetra-acetate Substances 0.000 claims description 3
- 235000011188 calcium disodium ethylene diamine tetraacetate Nutrition 0.000 claims description 3
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 claims description 3
- 238000004108 freeze drying Methods 0.000 claims description 3
- ZMQBAPPSYGILGT-UHFFFAOYSA-N sodium;2,3-bis(hydroxymethyl)butanedioic acid Chemical compound [Na+].OCC(C(O)=O)C(CO)C(O)=O ZMQBAPPSYGILGT-UHFFFAOYSA-N 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 abstract 2
- 229960001484 edetic acid Drugs 0.000 abstract 2
- 239000000843 powder Substances 0.000 abstract 2
- 240000007594 Oryza sativa Species 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000010814 metallic waste Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- PVGBHEUCHKGFQP-UHFFFAOYSA-N sodium;n-[5-amino-2-(4-aminophenyl)sulfonylphenyl]sulfonylacetamide Chemical compound [Na+].CC(=O)NS(=O)(=O)C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 PVGBHEUCHKGFQP-UHFFFAOYSA-N 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a modified nanometer titania/konjaku flour composite heavy metal adsorber. The adsorber is characterized by comprising the following raw materials in parts by weight: 20-30 parts of konjaku powder, 3-5 parts of glutinous rice flour, 3-5 parts of shrimp shell powder, 2-4 parts of modified nanometer titania, 3-5 parts of pectin, 0.5-1 part of sodium carboxymethylcellulose, 3-5 parts of sodium alginate, 0.1-0.2 part of sodium benzoate, 1-2 parts of EDTA (Ethylene Diamine Tetraacetic Acid), 2-4 parts of calcium chloride, 0.5-1 part of boric acid, 0.02-0.05 part of sodium methyl cocoyl taurate and 80-100 parts of water. The heavy metal adsorber disclosed by the invention has high adsorption performance, and not only is heavy metal adsorbed high-efficiently, but also the recycling and reusing are convenient to realize; the resources of raw materials are abundant, the price is low, the preparation method is simple, and no secondary pollution is caused, so that high environmental and economic benefits are provided.
Description
Technical field
The present invention relates to water treatment field, be specifically related to a kind of modified nano-titanium dioxide/konjaku flour Compound Heavy Metals adsorbent and preparation method thereof.
Background technology
Along with the fast development of economy, the discharge of trade effluent and the unreasonable landfill disposal of solid waste make heavy metal contaminants enter water body through various approach.The heavy metal entering water body has high stability and hard-decomposed, and easily enrichment in vivo, very serious to the potential hazard of human body and other biological body.In recent years, heavy metal pollution of water body problem is more outstanding, has become one of environmental problem the most serious in the world today, and heavy metal waste water carries out processing very necessary.
Nano titanium oxide has very strong adsorption capacity to some heavy metal ion, and adsorption rate is fast, and adsorption capacity is large, is a kind of ideal, quite potential heavy-metal adsorption material.But because titanium dioxide has very strong hydrophily, and titanium dioxide nanoparticle is small, easily reunites in water, and not free settling, be difficult to recovery and reuse, limit its application.When for wastewater treatment, by being carried on by nano titanium oxide on certain carrier, not only can keep the process effectiveness of its heavy metal waste water, and its stability in water body can be strengthened, thus solve application problem.
Summary of the invention
The object of this invention is to provide a kind of modified nano-titanium dioxide/konjaku flour Compound Heavy Metals adsorbent.
The present invention is achieved by the following technical solutions:
A kind of modified nano-titanium dioxide/konjaku flour Compound Heavy Metals adsorbent, it is obtained by the raw material of following weight parts:
Konjaku flour 20-30, glutinous rice flour 3-5, shrimp shell meal 3-5, modified nano-titanium dioxide 2-4, pectin 3-5, sodium carboxymethylcellulose 0.5-1, sodium alginate 3-5, Sodium Benzoate 0.1-0.2, disodium ethylene diamine tetraacetate 1-2, calcium chloride 2-4, boric acid 0.5-1, sodium methyl cocoyl taurate 0.02-0.05, water 80-100;
Wherein modified nano-titanium dioxide is made up of the raw material of following weight portion:
Nano titanium oxide 10-15, polyethylene glycol 2-4, sweet mellow wine 1-2, Dodecyl Polyglucosides 0.1-0.2, polyvinylpyrrolidone 0.1-0.2, Tween-80 0.03-0.05, water 40-50;
The preparation method of described modified nano-titanium dioxide is:
First polyethylene glycol and sweet mellow wine are added to the water and stir until dissolve completely, add Dodecyl Polyglucosides, polyvinylpyrrolidone and Tween-80 600-800r/min again and stir 10-15min, then nano titanium oxide is added, first ultrasonic disperse 5-10min, 15-30min is stirred again under 1200-1500r/min condition, after dry, grinding evenly, to obtain final product.
A preparation method for modified nano-titanium dioxide/konjaku flour Compound Heavy Metals adsorbent, comprises the following steps:
(1) raw material is taken by weight, first jointly being added by the water that boric acid and 1/2-2/3 are measured in reactor also stirs until dissolve completely, then add konjaku flour, glutinous rice flour, shrimp shell meal and pectin 60-80 DEG C, 400-600r/min stirs 0.5-1h, add first 60-80 DEG C of modified nano-titanium dioxide, sodium alginate, sodium carboxymethylcellulose and Sodium Benzoate again, 1200-1500r/min stirs 0.5-1h, be cooled to room temperature again, 300-400r/min stirs 2-4h, obtains compound;
(2) calcium chloride, disodium ethylene diamine tetraacetate and sodium methyl cocoyl taurate are added the water of surplus; 5-10min is stirred prior to 1000-1200r/min under room temperature; add described compound again and stir; leave standstill 1-2h; after freeze drying, grinding evenly; cross 10-20 mesh sieve, to obtain final product.
Advantage of the present invention is:
Nano titanium oxide is carried on the carrier that konjaku flour is primary raw material by simple process flow, and embed with sodium alginate and sodium carboxymethylcellulose, obtained heavy metal absorbent has high absorption property, can not only efficient adsorption heavy metal, and is convenient to recycling; Abundant raw material source, cheap, preparation method simply and do not introduce secondary pollution, has higher environmental benefit and economic benefit.
Detailed description of the invention
Non-limiting examples of the present invention is as follows:
A kind of modified nano-titanium dioxide/konjaku flour Compound Heavy Metals adsorbent, is prepared from by the component raw material of following weight (kg):
Konjaku flour 25, glutinous rice flour 4, shrimp shell meal 4, modified nano-titanium dioxide 3, pectin 4, sodium carboxymethylcellulose 0.8, sodium alginate 4, Sodium Benzoate 0.15, disodium ethylene diamine tetraacetate 1.5, calcium chloride 3, boric acid 0.8, sodium methyl cocoyl taurate 0.04, water 90;
Wherein, modified nano-titanium dioxide is made up of the raw material of following weight portion:
Nano titanium oxide 12, polyethylene glycol 3, sweet mellow wine 1.5, Dodecyl Polyglucosides 0.15, polyvinylpyrrolidone 0.15, Tween-80 0.04, water 45;
The preparation method of modified nano-titanium dioxide is:
First polyethylene glycol and sweet mellow wine are added to the water and stir until dissolve completely, add Dodecyl Polyglucosides, polyvinylpyrrolidone and Tween-80 800r/min again and stir 10min, then nano titanium oxide is added, first ultrasonic disperse 5min, 15min is stirred again under 1200r/min condition, after dry, grinding evenly, to obtain final product.
The preparation method of modified nano-titanium dioxide/konjaku flour Compound Heavy Metals adsorbent comprises the following steps:
(1) raw material is taken by weight, first the water of boric acid and 1/2 amount to be added jointly in reactor and to stir until dissolve completely, then add konjaku flour, glutinous rice flour, shrimp shell meal and pectin 80 DEG C, 600r/min stirs 1h, add modified nano-titanium dioxide, sodium alginate, sodium carboxymethylcellulose and Sodium Benzoate first 80 DEG C again, 1500r/min stirs 0.5h, be cooled to room temperature again, 400r/min stirs 3h, obtains compound;
(2) calcium chloride, disodium ethylene diamine tetraacetate and sodium methyl cocoyl taurate are added the water of surplus, stir 10min prior to 1200r/min under room temperature, then add described compound and stir; leave standstill 2h; after freeze drying, grinding evenly, crosses 10 mesh sieves, to obtain final product.
Get the adsorbent of the above-mentioned preparation of 0.5g, get 100mL water sample and carry out adsorption experiment under pH=6.0 condition, absorption result is in table 1, and result of the test shows the effective of adsorbent removal heavy metal, and adsorption capacity is high.
Table 1
| Heavy metal kind | Content (mg/L) before absorption | Clearance (%) |
| Plumbous | 52.1 | 99.8 |
| Copper | 44.8 | 99.6 |
| Chromium | 21.3 | 99.4 |
| Nickel | 10.2 | 99.6 |
Claims (2)
1. modified nano-titanium dioxide/konjaku flour Compound Heavy Metals adsorbent, is characterized in that, it is obtained by the raw material of following weight parts:
Konjaku flour 20-30, glutinous rice flour 3-5, shrimp shell meal 3-5, modified nano-titanium dioxide 2-4, pectin 3-5, sodium carboxymethylcellulose 0.5-1, sodium alginate 3-5, Sodium Benzoate 0.1-0.2, disodium ethylene diamine tetraacetate 1-2, calcium chloride 2-4, boric acid 0.5-1, sodium methyl cocoyl taurate 0.02-0.05, water 80-100;
Described modified nano-titanium dioxide is made up of the raw material of following weight portion:
Nano titanium oxide 10-15, polyethylene glycol 2-4, sweet mellow wine 1-2, Dodecyl Polyglucosides 0.1-0.2, polyvinylpyrrolidone 0.1-0.2, Tween-80 0.03-0.05, water 40-50;
The preparation method of described modified nano-titanium dioxide is:
First polyethylene glycol and sweet mellow wine are added to the water and stir until dissolve completely, add Dodecyl Polyglucosides, polyvinylpyrrolidone and Tween-80 600-800r/min again and stir 10-15min, then nano titanium oxide is added, first ultrasonic disperse 5-10min, 15-30min is stirred again under 1200-1500r/min condition, after dry, grinding evenly, to obtain final product.
2. the preparation method of a kind of modified nano-titanium dioxide according to claim 1/konjaku flour Compound Heavy Metals adsorbent, is characterized in that, comprise the following steps:
(1) raw material is taken by weight, first jointly being added by the water that boric acid and 1/2-2/3 are measured in reactor also stirs until dissolve completely, then add konjaku flour, glutinous rice flour, shrimp shell meal and pectin 60-80 DEG C, 400-600r/min stirs 0.5-1h, add first 60-80 DEG C of modified nano-titanium dioxide, sodium alginate, sodium carboxymethylcellulose and Sodium Benzoate again, 1200-1500r/min stirs 0.5-1h, be cooled to room temperature again, 300-400r/min stirs 2-4h, obtains compound;
(2) calcium chloride, disodium ethylene diamine tetraacetate and sodium methyl cocoyl taurate are added the water of surplus, stir 5-10min prior to 1000-1200r/min under room temperature, then add described compound and stir; leave standstill 1-2h; after freeze drying, grinding evenly, crosses 10-20 mesh sieve, to obtain final product.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105034134A (en) * | 2015-07-29 | 2015-11-11 | 安徽鑫润新型材料有限公司 | Waterproof, corrosion-resistant and health-care fiber composite board and manufacturing method thereof |
| CN105034135A (en) * | 2015-07-29 | 2015-11-11 | 安徽鑫润新型材料有限公司 | Flame-retardant and health-care fiber composite board and manufacturing method thereof |
| CN105058545A (en) * | 2015-07-29 | 2015-11-18 | 安徽鑫润新型材料有限公司 | Oil-proof antifouling health-care fiber composite board and manufacturing method thereof |
| CN105108875A (en) * | 2015-07-29 | 2015-12-02 | 安徽鑫润新型材料有限公司 | Mildewproof dampproof health-care fiber composite board and preparation method thereof |
| CN105148872A (en) * | 2015-08-25 | 2015-12-16 | 安徽省中日农业环保科技有限公司 | Brucite composite heavy metal adsorption granules and preparation method thereof |
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| CN109174059A (en) * | 2018-09-25 | 2019-01-11 | 安溪县斯马拓科技发展有限公司 | Embed modified meerschaum/nano-titanium dioxide microsphere adsorbing agent preparation method |
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| CN105034134A (en) * | 2015-07-29 | 2015-11-11 | 安徽鑫润新型材料有限公司 | Waterproof, corrosion-resistant and health-care fiber composite board and manufacturing method thereof |
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| CN105108875A (en) * | 2015-07-29 | 2015-12-02 | 安徽鑫润新型材料有限公司 | Mildewproof dampproof health-care fiber composite board and preparation method thereof |
| CN105148872A (en) * | 2015-08-25 | 2015-12-16 | 安徽省中日农业环保科技有限公司 | Brucite composite heavy metal adsorption granules and preparation method thereof |
| CN105148857A (en) * | 2015-08-25 | 2015-12-16 | 安徽省中日农业环保科技有限公司 | Loquat leaf containing heavy metal adsorption granules and preparation method thereof |
| CN105561930A (en) * | 2015-12-11 | 2016-05-11 | 安徽省中日农业环保科技有限公司 | Heavy metal ions absorbent prepared from pineapple leaves and preparation method thereof |
| CN105536728A (en) * | 2015-12-14 | 2016-05-04 | 安徽省中日农业环保科技有限公司 | Grapevine adsorption granule for heavy metals and preparation method thereof |
| CN108786725A (en) * | 2018-05-24 | 2018-11-13 | 安徽省齐岗农业发展有限公司第分公司 | A kind of preparation method of biological carbon for rehabilitating soil environment |
| CN109174059A (en) * | 2018-09-25 | 2019-01-11 | 安溪县斯马拓科技发展有限公司 | Embed modified meerschaum/nano-titanium dioxide microsphere adsorbing agent preparation method |
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