CN104209095A - Cushaw stem adsorption material and preparation method thereof - Google Patents
Cushaw stem adsorption material and preparation method thereof Download PDFInfo
- Publication number
- CN104209095A CN104209095A CN201410402773.2A CN201410402773A CN104209095A CN 104209095 A CN104209095 A CN 104209095A CN 201410402773 A CN201410402773 A CN 201410402773A CN 104209095 A CN104209095 A CN 104209095A
- Authority
- CN
- China
- Prior art keywords
- cushaw stem
- preparation
- solution
- dry
- deionized water
- 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 discloses a cushaw stem adsorption material belonging to the biological adsorption field and a preparation method thereof; first, cushaw stem is selected as a raw material, miscellaneous leaf and miscellaneous root are removed, the cushaw stem is cleaned with tap water, washed with distilled water, then aired, dried and chopped; amylase is used for starch enzymolysis, a diluted NaOH or KOH solution is used for removal of the other impurity components in the cushaw stem, and a dilute H2SO4 solution is used for neutralization; the treated cushaw stem and urea are evenly mixed according to the mass ratio of 1:1, and then react for 5-10 hours in deionized water immersion conditions; then the solution is filtered and aired, the deionized water or 95% alcohol is used for cleaning for 3-4 times, and the cushaw stem is dried to obtain the cushaw stem adsorption material. The cushaw stem adsorption material is simple in manufacturing method, low in cost and environment friendly, and has wide application prospect.
Description
Technical field
The present invention relates to a kind of cushaw stem sorbing material, its preparation method and application belong to biological adsorption field.
Background technology
Along with industrialized development, China in heavy metal exploitation, smelt, in process, cause many heavy metals as lead, mercury, cadmium, cobalt etc. enter air, water, soil causes serious environmental pollution.Unlike heavy metal, there is enriching with the pollution of other organic compound, be difficult to degrade in the environment.Even if the heavy metal concentration contained through the water of heavy metal pollution is very little, also can accumulate in algae, be adsorbed by fish and shellfish body surface, produce food chain and concentrate.Heavy metal in human body can and protein and various enzyme there is strong interaction, make them lose activity, also may enrichment in some organ of human body, if exceed the tolerant limit of human body, human body acute poisoning, subacute poisoning, slow poisoning etc. can be caused, people is known from experience and causes very large harm.
The method being commonly used to process heavy metal polluted waste water at present has a lot.Wherein chemical method has: electrolytic reduction, advanced oxidation processes; Physical method has: flocculence and membrane separation process etc., although these methods play certain positive role to process heavy metal pollution process.But because these methods or cost is high, or treatment effeciency is low, is difficult to industrially use on a large scale, we need find a kind of cheap and easy to get for this reason, can widely used process method for waste water.And the heavy metal utilizing crops sorbing material to adsorb in waste water is a kind of process for treating heavy-metal waste water with development prospect.
Cushaw stem is the rattan of cucurbitaceous plant pumpkin, and it is as a kind of agricultural waste material, and resource is very abundant.But research and development are considerably less at present, often go out of use or burn, causing serious environmental pollution and the wasting of resources.Exploitation cushaw stem sorbing material is significant to developing new biological adsorption material and realizing sustainable development.Containing abundant cellulose in cushaw stem, crude fiber content is up to 26% ~ 32%.Hydroxyl on glucose basic ring in cellulose chain can carry out esterification, enzyme and copolyreaction, therefore can dissolve the non-cellulose components in cushaw stem with the acid of dilution or alkali, is then prepared into by modification
onethe heavy-metal adsorption material of kind of low cost, the sorbing material prepared by the method is had the following advantages: one is abundant raw material, cheap; Two is environmentally friendly; Three is that reaction process is simple and direct, consuming time short.
Summary of the invention
The object of this invention is to provide a kind of cushaw stem sorbing material and preparation method thereof.
For realizing this purpose, the present invention is achieved through the following technical solutions:
Adopt natural cushaw stem as raw material, prepare a kind of low-cost bio sorbing material through alkalization, esterification technique.
A preparation method for cushaw stem sorbing material, comprises the steps:
(1) select sturdy cushaw stem, except impurity elimination leaf, assorted root, then clean with running water, removing earth and dust, finally dry in the air with distilled water and wash, after dry to constant weight under 70-80 DEG C of condition;
(2) the cushaw stem chopping of will dry, soaks in deionized water;
(3) add the amylase of the 0.01-0.05mol/L activated, under 35-50 DEG C of condition, react 2-3 hour;
(4) add NaOH or the KOH solution of 0.05-0.1mol/L, reaction 1-2 hour, then use rare H
2sO
4solution neutralizes;
(5) will (4) filter, dry by middle gained solution, and the filter residue dried be mixed with the mass ratio of urea by 1:1, then adds deionized water submergence, reaction 5-10 hour;
(6) will (5) middle solution filtration dry, remove residual ionic liquid 3-4 time by deionized water or with the alcohol washes of 95% afterwards, namely clean post-drying obtains a kind of cushaw stem sorbing material.
The present invention has following advantages and characteristic:
(1) compared with prior art, adopt the mode of enzyme degraded, the starch of cushaw stem is carried out enzymolysis, not destroying again it has adsorbing cellulose components simultaneously;
(2) this adsorbent excellent effect, effectively can adsorb various heavy;
Simple, the raw material sources of this sorbing material manufacture method extensively, can produce in a large number;
(4) this kind of sorbing material is environmentally friendly, can not cause secondary pollution.
Detailed description of the invention
Embodiment one:
Select sturdy cushaw stem, except impurity elimination leaf, assorted root, then clean with running water, removing earth and dust, finally dry in the air with distilled water and wash, after dry to constant weight under 70 DEG C of conditions; By the cushaw stem chopping of drying, soak in deionized water; Add the amylase of the 0.01mol/L activated, under 35 DEG C of conditions, carry out enzymolysis 2 hours; Add the NaOH solution of 0.05mol/L again, react 1 hour, use rare H afterwards
2sO
4solution neutralizes, and refilters, dries, mixed by the filter residue dried with the mass ratio of urea by 1:1, then add deionized water submergence reactant, react 5 hours; Again filter and dry, afterwards by the ionic liquid that washed with de-ionized water 3 times removing is residual, finally use the alcohol washes 2 times of 95%, namely clean post-drying obtains a kind of cushaw stem sorbing material.
Embodiment two:
Select sturdy cushaw stem, except impurity elimination leaf, assorted root, then clean with running water, removing earth and dust, finally dry in the air with distilled water and wash, after dry to constant weight under 80 DEG C of conditions; By the cushaw stem chopping of drying, soak in deionized water; Add the amylase of the 0.05mol/L activated, under 50 DEG C of conditions, carry out enzymolysis 3 hours; Add the KOH solution of 0.1mol/L again, react 2 hours, use rare H afterwards
2sO
4solution neutralizes, and refilters, dries, mixed by the filter residue dried with the mass ratio of urea by 1:1, then add deionized water submergence reactant, react 10 hours; Again filter and dry, afterwards by the ionic liquid that washed with de-ionized water 3 times removing is residual, finally use the alcohol washes 2 times of 95%, namely clean post-drying obtains a kind of cushaw stem sorbing material.
Embodiment three:
Select sturdy cushaw stem, except impurity elimination leaf, assorted root, then clean with running water, removing earth and dust, finally dry in the air with distilled water and wash, dry to constant weight under 80 DEG C of conditions; Take cushaw stem 100kg and smashed with beating crusher, dropping in 3 tons of health storage tanks, and inject appropriate amount of deionized water in tank, add the 0.05mol/L amylase solution 2L activated, react 2 hours under 50 DEG C of conditions, then add the 0.1mol/L KOH solution of 5L, react 1 hour, then use H
2sO
4solution neutralizes, and filters, then dry in inciting somebody to action with gained liquid sheet frame compressor; Again squeeze into after the filter residue dried is mixed by the mass ratio of 1:1 with urea in 3 tons of sanitary cans, and inject deionized water and react 8 hours, filter, use the ionic liquid that washed with de-ionized water 4 removings are residual afterwards, after cleaning, cushaw stem sorbing material is dried and is obtained in drying.
Claims (4)
1. a preparation method for cushaw stem sorbing material, is characterized in that, this preparation method carries out according to the following steps:
(1) select sturdy cushaw stem, except impurity elimination leaf, assorted root, then clean with running water, removing earth and dust, finally dry in the air with distilled water and wash, after dry to constant weight under 70-80 DEG C of condition;
(2) the cushaw stem chopping of will dry, soaks in deionized water;
(3) add activated amylase, under 35-50 DEG C of condition, react 2-3 hour;
(4) add NaOH or the KOH solution of 0.05-0.1mol/L, reaction 1-2 hour, then use rare H
2sO
4solution neutralizes;
(5) will (4) filter, dry by middle gained solution, and the filter residue dried be mixed with the mass ratio of urea by 1:1, then adds deionized water submergence reactant, reaction 5-10 hour;
(6) will (5) middle solution filtration dry, remove residual ionic liquid 3-4 time by deionized water or with the alcohol washes of 95% afterwards, namely clean post-drying obtains a kind of cushaw stem sorbing material.
2. the preparation method of a kind of cushaw stem sorbing material according to claim 1, is characterized in that, step (3) in diastatic solubility used be 0.01-0.05mol/L.
3. the preparation method of a kind of cushaw stem sorbing material according to claim 1, is characterized in that, step (4) in rare H used
2sO
4the mass fraction of solution is lower than 15%.
4. the preparation method of a kind of cushaw stem sorbing material according to claim 1, is characterized in that, step (5) in, when adding deionized water after filter residue mixes with urea, stir rapidly with agitator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410402773.2A CN104209095A (en) | 2014-08-17 | 2014-08-17 | Cushaw stem adsorption material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410402773.2A CN104209095A (en) | 2014-08-17 | 2014-08-17 | Cushaw stem adsorption material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104209095A true CN104209095A (en) | 2014-12-17 |
Family
ID=52091238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410402773.2A Pending CN104209095A (en) | 2014-08-17 | 2014-08-17 | Cushaw stem adsorption material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104209095A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106512959A (en) * | 2016-11-28 | 2017-03-22 | 杨欣睿 | Process for preparing adsorbent by modification through kidney bean vines |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847516A (en) * | 2012-08-24 | 2013-01-02 | 嘉兴学院 | Biological modified straw adsorbent, and reparation method and application thereof |
-
2014
- 2014-08-17 CN CN201410402773.2A patent/CN104209095A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847516A (en) * | 2012-08-24 | 2013-01-02 | 嘉兴学院 | Biological modified straw adsorbent, and reparation method and application thereof |
Non-Patent Citations (2)
| Title |
|---|
| UMAR FAROOQ ET AL.: "Effect of modification of environmentally friendly biosorbent wheat(Triticum aestivum) on the biosoprtion removal of cadmium(II) ions from aqueous solution", 《CHEMICAL ENGINEERING JOURNAL》 * |
| 郝红英等: "植物秸秆纤维素物理化学改性及其吸附机理研究", 《农业环境科学学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106512959A (en) * | 2016-11-28 | 2017-03-22 | 杨欣睿 | Process for preparing adsorbent by modification through kidney bean vines |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104226264A (en) | Bitter gourd vine adsorption material and preparation method thereof | |
| CN105536715A (en) | Method for preparation of adsorption material by using maple leaf | |
| CN101829545A (en) | Heavy metal biological adsorbent using eggshell membrane as matrix and preparation method thereof | |
| CN103480330B (en) | Biomass-modified adsorbent for adsorbing coking wastewater, and preparation method and application thereof | |
| CN105435748A (en) | Plant cellulose adsorbent | |
| CN105536714A (en) | Heavy metal cellulose adsorbent and preparation method thereof | |
| CN105435749A (en) | Cellulose modified adsorbent and preparation technology thereof | |
| CN103566907A (en) | Preparation method and application of pyromellitic dianhydride modified loofah sponge adsorbent | |
| CN105413648A (en) | Folium ginkgo adsorbing material and preparation method thereof | |
| CN104028224A (en) | Wheat straw adsorption material and preparation method thereof | |
| CN103933944A (en) | Preparation and application of gamma-(aminopropyl)triethoxysilane modified loofah sponge adsorbent | |
| CN105381787A (en) | New environmentally friendly adsorbent material and preparation process thereof | |
| CN105833845A (en) | Preparation method of novel heavy metal chelate fiber | |
| CN104209096A (en) | Watermelon vine adsorption material and preparation method thereof | |
| CN104209095A (en) | Cushaw stem adsorption material and preparation method thereof | |
| CN104028230A (en) | Novel sorghum straw adsorbing material and preparation method thereof | |
| CN104226266A (en) | Chinese flowering quince vine adsorption material and preparation method thereof | |
| CN103433002A (en) | Preparation method for silver-enriched straw material | |
| CN105536716A (en) | Orange peel modified adsorbent material and preparation method thereof | |
| CN101733078A (en) | Method for preparing phosphorous-removing adsorbent by using cane shoots leaves | |
| CN104209097A (en) | Chinese waxgourd vine adsorption material and preparation method thereof | |
| CN104226265A (en) | Cantaloupe vine adsorption material and preparation method thereof | |
| CN104028231A (en) | Novel rape straw adsorbing material and preparation method thereof | |
| CN104028235A (en) | Barley straw adsorbing material and preparation method thereof | |
| CN106622154A (en) | Honeysuckle vine modified adsorbent and preparation process thereof |
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: 20141217 |