CN104148027A - Preparation method for adsorbing material for removing cadmium from slightly-polluted water body - Google Patents
Preparation method for adsorbing material for removing cadmium from slightly-polluted water body Download PDFInfo
- Publication number
- CN104148027A CN104148027A CN201410346017.2A CN201410346017A CN104148027A CN 104148027 A CN104148027 A CN 104148027A CN 201410346017 A CN201410346017 A CN 201410346017A CN 104148027 A CN104148027 A CN 104148027A
- Authority
- CN
- China
- Prior art keywords
- bagasse
- aqueous solution
- container
- water
- hours
- 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
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a preparation method for an adsorbing material for removing cadmium from a slightly-polluted water body, and belongs to the field of wastewater treatment. The preparation method comprises the following steps: manually cutting fresh bagasse into small strips; putting the small strips into a pressure cooker, adding distilled water and boiling to remove soluble substances, such as sugar; drying the boiled small strips into a hot air oven; crushing the dried small strips by using a Chinese herbal medicine crushing machine; putting the crushed bagasse into a container, and adding a NaOH solution into the crushed bagasse to obtain a mixture; stirring the mixture uniformly at room temperature by using a glass rod until the mixture is fully alkalified; pouring alkalified bagasse into a filtration funnel, and drying the bagasse after the bagasse is leached to be neutral; putting dried cellulose in a container, adding an aqueous solution of H3PO4 into the container for performing pre-expansion; adding the aqueous solution of the H3PO4 after the pre-expansion is performed; reacting the mixture in a water-bath kettle, wherein urea is used as a catalyst and methylbenzene is used as a solvent; washing a reaction product by using an alkali until the reaction product does not contain phosphate anions; converting an esterification reactant into an H-type ion exchanger by using an aqueous solution of HCl; and drying the H-type ion exchanger to obtain the adsorbent disclosed by the invention. According to the preparation method, the cost is low, the secondary pollution is avoided, and the requirement on resource recovery of solid waste is met.
Description
Technical field
The present invention relates to a kind of sorbing material preparation method who removes cadmium in micropollutant water, belong to sewage treatment area.
Background technology
Along with industrial expansions such as mining, metallurgy and cadmium processing, China's agricultural soil is subject to cadmium pollution also day by day serious in recent years.Because cadmium can not be degraded by Soil Microorganism, the half-life surpasses 20 years, and it pollutes for irreversible cumulative process; Cadmium is again the very strong heavy metal of biogenic migration, is very easily absorbed by plants and accumulates, and surpasses output, quality that certain limit not only has a strong impact on crop, and edible part very easily by food chain at people's cylinder accumulation and be detrimental to health.The toxicity of compound of cadmium is large, and belongs to savings, causes that can reach 10 to 30 years the incubation period of slow poisoning.At present, China ploughs and to be subject to the problem of the heavy metal pollutions such as cadmium, lead day by day serious, and the economic loss causing is thus also increasing, according at least 200 hundred million yuan of economic losses reporting that annual China causes because of heavy metal pollution.In all heavy metal pollution, the most serious with cadmium pollution.The direct influence ecological environment of cadmium content in soil and the mankind's health, so must give enough attention to cadmium pollution problem.Find out a low and stable assay method of detection limit and can better play forewarning function; For contaminated soil, need to find more economical more efficient restorative procedure.In a word, heavy metal in soil cadmium pollution has had a strong impact on sustainable development and the human health of agricultural production, so pollution and the improvement of research Cadmium in Soil are necessary.
Make a general survey of the cadmium technology of removing both domestic and external, soil moved in to improve the original method method is applicable to the little soil of contaminated area, and for the large soil of contaminated area, cost is too high, complicated operation.Chemical method is applicable to pollute not too serious soil, but need use the chemical substances such as modifying agent or inhibition to reduce water-soluble, diffusivity and the biological effectiveness of Cadmium in Soil, thereby weakens the effect of murder by poisoning.Biological restoration is both economical, simple to operate, but the cycle is long.
Summary of the invention
The present invention is directed to conventional method existing problems, invent cadmium sorbing material preparation method in a kind of removal micropollutant water, choosing the non-grain living beings of sugarcane is primary raw material, prepares non-grain living beings and removes cadmium adsorbent, is a kind of natural reproducible, tasteless and environment there is no to an adsorbent of pollution.
(1) get the fresh cane slag of the complete juice of firm squeezing buying, manual rectangular bagasse is cut into tiny strip, put into pressure cooker, add distilled water to till flooding bagasse, water boil 30～40 minutes, except desaccharification solable matter;
(2) be placed in afterwards dry 36 hours of the hot-air baking oven of 120 ℃, take out the bagasse being dried, with crusher for Chinese herbal medicine, pulverize, pulverize 1～2 hour;
(3) get and pulverize rear dry bagasse in container, add the 20%NaOH solution of 40ml, with glass bar, stir, at room temperature allow it fully stir 1～2 hour, make alkalization more abundant;
(4) bagasse of abundant alkalization is poured into suction funnel, suction filtration is to neutrality, and the baking oven that is placed in laboratory is dried 24 hours in 88～100 ℃;
(5) cellulose of getting oven dry, in container, adds 20% the H of 40ml
3pO
4the aqueous solution carry out pre-expansion 12 hours.After pre-expansion, add 5ml85%H
3pO
4the aqueous solution, the urea of 0.3g is as catalyst, with toluene as solvent, putting into water-bath reacts after 1 hour at 50 ℃, alkali cleaning is to without phosphate anion, then with the aqueous solution of 6% HCL, reactant of esterification is converted into H type ion-exchanger, dries to obtain adsorbent of the present invention.
The significant advantage that the present invention has is:
(1) raw material output is large, is conveniently easy to get, and technique is simple, and cost is low, easy to operate, can not cause secondary pollution.
(2) farthest realize the utilization again of bagasse, improve the present situation of China's bagasse wasting of resources, the requirement of complex solid changing waste into resources, and produce economic benefit.
The specific embodiment
Get the fresh cane slag of the complete juice of firm squeezing buying, manual rectangular bagasse is cut into tiny strip, put into pressure cooker, add distilled water to till flooding bagasse, water boil 30～40 minutes, except desaccharification solable matter; The hot-air baking oven that is placed in afterwards 120 ℃ is dried 36 hours, takes out the bagasse being dried, and with crusher for Chinese herbal medicine, pulverizes, and pulverizes 1～2 hour; Get bagasse dry after pulverizing in container, add the 20%NaOH solution of 40ml, with glass bar, stir, at room temperature allow it fully stir 1 hour, make alkalization more abundant; The bagasse of fully alkalization is poured into suction funnel, and suction filtration is to neutrality, and the baking oven that is placed in laboratory is dried 24 hours in 88～100 ℃; Get the cellulose of oven dry in container, add 20% the H of 40ml
3pO
4the aqueous solution carry out pre-expansion 12 hours.After pre-expansion, add 5ml85%H
3pO
4the aqueous solution, the urea of 0.3g is as catalyst, with toluene as solvent, putting into water-bath reacts after 1 hour at 50 ℃, alkali cleaning is to without phosphate anion, then with the aqueous solution of 6% HCl, reactant of esterification is converted into H type ion-exchanger, dries to obtain sorbing material.It is that 50L concentration is 50～100mg/L cadmium wastewater that gained sorbing material is put into volume, guarantees that pH value 6.0～8.0 in the situation that, adsorbs 2～14 hours, and the clearance of cadmium reaches more than 95%.
Example 1
Get the fresh cane slag of the complete juice of firm squeezing buying, manual rectangular bagasse is cut into tiny strip, put into pressure cooker, add distilled water to till flooding bagasse, water boil 30 minutes, except solable matters such as desaccharifications; The hot-air baking oven that is placed in afterwards 120 ℃ is dried 36 hours, takes out the bagasse being dried, and with crusher for Chinese herbal medicine, pulverizes, and pulverizes 1 hour; Get bagasse dry after pulverizing in container, add the 20%NaOH solution of 40ml, with glass bar, stir, at room temperature allow it fully stir 1 hour, make alkalization more abundant; The bagasse of fully alkalization is poured into suction funnel, and suction filtration is to neutrality, and the baking oven that is placed in laboratory is dried 24 hours in 88 ℃; Get the cellulose of oven dry in container, add 20% the H of 40ml
3pO
4the aqueous solution carry out pre-expansion 12 hours.After pre-expansion, add 5ml85%H
3pO
4the aqueous solution, the urea of 0.3g is as catalyst, with toluene as solvent, putting into water-bath reacts after 1 hour at 50 ℃, alkali cleaning is to without phosphate anion, then with the aqueous solution of 6% HCl, reactant of esterification is converted into H type ion-exchanger, dries to obtain sorbing material.It is that 50L concentration is 50mg/L cadmium wastewater that gained sorbing material is put into volume, and assurance pH value, 6.0, is adsorbed 2 hours, and in waste water, the concentration of cadmium is reduced to 0.5mg/L, and the clearance of cadmium reaches 95%.
Example 2
Get the fresh cane slag of the complete juice of firm squeezing buying, manual rectangular bagasse is cut into tiny strip, put into pressure cooker, add distilled water to till flooding bagasse, water boil 35 minutes, except solable matters such as desaccharifications; The hot-air baking oven that is placed in afterwards 120 ℃ is dried 36 hours, takes out the bagasse being dried, and with crusher for Chinese herbal medicine, pulverizes, and pulverizes 1.5 hours; Get bagasse dry after pulverizing in container, add the 20%NaOH solution of 40ml, with glass bar, stir, at room temperature allow it fully stir 1 hour, make alkalization more abundant; The bagasse of fully alkalization is poured into suction funnel, and suction filtration is to neutrality, and the baking oven that is placed in laboratory is dried 24 hours in 94 ℃; Get the cellulose of oven dry in container, add 20% the H of 40ml
3pO
4the aqueous solution carry out pre-expansion 12 hours.After pre-expansion, add 5ml85%H
3pO
4the aqueous solution, the urea of 0.3g is as catalyst, with toluene as solvent, putting into water-bath reacts after 1 hour at 50 ℃, alkali cleaning is to without phosphate anion, then with the aqueous solution of 6% HCl, reactant of esterification is converted into H type ion-exchanger, dries to obtain sorbing material.It is that 50L concentration is 75mg/L cadmium wastewater that gained sorbing material is put into volume, and assurance pH value, 7.0, is adsorbed 3 hours, and in waste water, the concentration of cadmium is reduced to below 0.4mg/L, and the clearance of cadmium reaches more than 96%.
Example 3
Get the fresh cane slag of the complete juice of firm squeezing buying, manual rectangular bagasse is cut into tiny strip, put into pressure cooker, add distilled water to till flooding bagasse, water boil 40 minutes, except solable matters such as desaccharifications; The hot-air baking oven that is placed in afterwards 120 ℃ is dried 36 hours, takes out the bagasse being dried, and with crusher for Chinese herbal medicine, pulverizes, and pulverizes 2 hours; Get bagasse dry after pulverizing in container, add the 20%NaOH solution of 40ml, with glass bar, stir, at room temperature allow it fully stir 1 hour, make alkalization more abundant; The bagasse of fully alkalization is poured into suction funnel, and suction filtration is to neutrality, and the baking oven that is placed in laboratory is dried 24 hours in 100 ℃; Get the cellulose of oven dry in container, add 20% the H of 40ml
3pO
4the aqueous solution carry out pre-expansion 12 hours.After pre-expansion, add 5ml85%H
3pO
4the aqueous solution, the urea of 0.3g is as catalyst, with toluene as solvent, putting into water-bath reacts after 1 hour at 50 ℃, alkali cleaning is to without phosphate anion, then with the aqueous solution of 6% HCl, reactant of esterification is converted into H type ion-exchanger, dries to obtain sorbing material.It is that 50L concentration is 100mg/L cadmium wastewater that gained sorbing material is put into volume, and assurance pH value, 8.0, is adsorbed 4 hours, and in waste water, the concentration of cadmium is reduced to below 0.3mg/L, and the clearance of cadmium reaches more than 97%.
Claims (1)
1. a sorbing material preparation method who removes cadmium in micropollutant water, is characterized in that:
(1) get the fresh cane slag of the complete juice of firm squeezing buying, manual rectangular bagasse is cut into tiny strip, put into pressure cooker, add distilled water to till flooding bagasse, water boil 30～40 minutes, except desaccharification solable matter;
(2) be placed in afterwards dry 36 hours of the hot-air baking oven of 120 ℃, take out the bagasse being dried, with crusher for Chinese herbal medicine, pulverize, pulverize 1～2 hour;
(3) get and pulverize rear dry bagasse in container, add the 20%NaOH solution of 40ml, with glass bar, stir, at room temperature allow it fully stir 1～2 hour, make alkalization more abundant;
(4) bagasse of abundant alkalization is poured into suction funnel, suction filtration is to neutrality, and the baking oven that is placed in laboratory is dried 24 hours in 88～100 ℃;
(5) cellulose of getting oven dry, in container, adds 20% the H of 40ml
3pO
4the aqueous solution carry out pre-expansion 12 hours, after pre-expansion, add 5ml85%:H
3pO
4the aqueous solution, the urea of 0.3g is as catalyst, with toluene as solvent, putting into water-bath reacts after 1 hour at 50 ℃, alkali cleaning is to without phosphate anion, then with the aqueous solution of 6% HCl, reactant of esterification is converted into H type ion-exchanger, dries to obtain adsorbent of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410346017.2A CN104148027A (en) | 2014-07-18 | 2014-07-18 | Preparation method for adsorbing material for removing cadmium from slightly-polluted water body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410346017.2A CN104148027A (en) | 2014-07-18 | 2014-07-18 | Preparation method for adsorbing material for removing cadmium from slightly-polluted water body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104148027A true CN104148027A (en) | 2014-11-19 |
Family
ID=51873767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410346017.2A Pending CN104148027A (en) | 2014-07-18 | 2014-07-18 | Preparation method for adsorbing material for removing cadmium from slightly-polluted water body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104148027A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384210A (en) * | 2015-11-14 | 2016-03-09 | 常州大学 | Micro-polluted source water disinfection by-product precursor treatment method |
| CN106565983A (en) * | 2016-11-09 | 2017-04-19 | 武汉工程大学 | Micron-order phosphate radical modified cellulose microsphere and preparation method and application thereof |
| CN111346613A (en) * | 2018-12-21 | 2020-06-30 | 中国石油化工股份有限公司 | Dye wastewater adsorbent and preparation method thereof |
| CN108160037B (en) * | 2018-02-01 | 2021-02-02 | 佛山市铁人环保科技有限公司 | Modified biochar and preparation method thereof |
| CN115245754A (en) * | 2021-04-26 | 2022-10-28 | 中国石油化工股份有限公司 | Biodegradable polymer separation membrane for adsorbing heavy metals and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110318798A1 (en) * | 2010-06-24 | 2011-12-29 | Cobalt Technologies, Inc. | Removal of inhibitors of microbial fermentation from inhibitor-containing compositions |
| CN103691409A (en) * | 2013-12-31 | 2014-04-02 | 常州大学 | Method for modifying bagasse |
-
2014
- 2014-07-18 CN CN201410346017.2A patent/CN104148027A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110318798A1 (en) * | 2010-06-24 | 2011-12-29 | Cobalt Technologies, Inc. | Removal of inhibitors of microbial fermentation from inhibitor-containing compositions |
| CN103691409A (en) * | 2013-12-31 | 2014-04-02 | 常州大学 | Method for modifying bagasse |
Non-Patent Citations (3)
| Title |
|---|
| A.MESFIN YENENEH: ""Study on biosorption of heavy metals by modified lignocellulosic waste"", 《JOURNAL OF APPLIED SCIENCES》 * |
| SUPITCHA RUNGRODNIMITCHAI: ""Rapid Preparation of Biosorbents with High Ion Exchange Capacity from Rice Straw and Bagasse for Removal of Heavy Metals"", 《THE SCIENTIFIC WORLD JOURNAL》 * |
| 崔志敏等: ""甘蔗渣纤维素磷酸酯的合成与应用研究"", 《精细化工》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384210A (en) * | 2015-11-14 | 2016-03-09 | 常州大学 | Micro-polluted source water disinfection by-product precursor treatment method |
| CN106565983A (en) * | 2016-11-09 | 2017-04-19 | 武汉工程大学 | Micron-order phosphate radical modified cellulose microsphere and preparation method and application thereof |
| CN108160037B (en) * | 2018-02-01 | 2021-02-02 | 佛山市铁人环保科技有限公司 | Modified biochar and preparation method thereof |
| CN111346613A (en) * | 2018-12-21 | 2020-06-30 | 中国石油化工股份有限公司 | Dye wastewater adsorbent and preparation method thereof |
| CN115245754A (en) * | 2021-04-26 | 2022-10-28 | 中国石油化工股份有限公司 | Biodegradable polymer separation membrane for adsorbing heavy metals and preparation method and application thereof |
| CN115245754B (en) * | 2021-04-26 | 2024-06-04 | 中国石油化工股份有限公司 | Biodegradable polymer separation membrane for adsorbing heavy metals and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104148027A (en) | Preparation method for adsorbing material for removing cadmium from slightly-polluted water body | |
| CN103030710B (en) | Resource utilization method of camellia oleifera shells | |
| CN101497031B (en) | Polluted water body heavy metal adsorption material and preparation method thereof | |
| CN104069812A (en) | Method for preparing modified maize straw hydrothermal charcoal by adopting KOH | |
| CN102382205A (en) | Method for extracting pectin from banana peels | |
| CN102766530A (en) | Method for extracting phospholipid-rich krill oil from Antarctic krill | |
| CN104187456A (en) | Technical method for extracting dietary fiber from pear residue | |
| CN104667895A (en) | Coconut shell-based heavy metal adsorbent and preparation method thereof | |
| CN102839053B (en) | Method for extracting aurantiamarin from orange peel | |
| CN107362810A (en) | A kind of magnetic mao bamboon charcoal solid acid catalyst and preparation method and its application in xylo-oligosaccharide is prepared | |
| CN102796203B (en) | Method for preparing anti-oxidization active camellia olefera cake polysaccharide | |
| CN103238723B (en) | Preparation method of low-fluorine euphausia superb hydrolyzed protein powder | |
| CN103361177B (en) | Method for extraction of aroma compounds from aroma materials | |
| CN104028224A (en) | Wheat straw adsorption material and preparation method thereof | |
| CN103194089A (en) | Microwave-assisted method for extracting peanut coat haematochrome | |
| CN105819442B (en) | The method that penicillin waste mycelia denitrogenation prepares activated carbon | |
| JP5804471B2 (en) | Method for producing sudachi polyphenol from sudachi (squeezed residue) | |
| CN103087144A (en) | Diosgenin production method | |
| CN102796207B (en) | Method for extracting pectin from tangerine peel | |
| CN106268677A (en) | A kind of preparation method of modified watermelon peel adsorbent | |
| CN104074086A (en) | Method for extracting cellulose from sow thistle | |
| CN106179256A (en) | A kind of technique utilizing Folium fici microcarpae modification to prepare adsorbent | |
| CN105198734B (en) | Method of preparing gallic acid | |
| CN107556359B (en) | Method for improving dissolution rate of water-extracted tea saponin | |
| CN108261430A (en) | A kind of extracting method of Shell of Water Chestnut active ingredient |
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: 20141119 |