CN103433001B - Preparation method of biomass arsenic adsorbing material - Google Patents
Preparation method of biomass arsenic adsorbing material Download PDFInfo
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- CN103433001B CN103433001B CN201310367023.1A CN201310367023A CN103433001B CN 103433001 B CN103433001 B CN 103433001B CN 201310367023 A CN201310367023 A CN 201310367023A CN 103433001 B CN103433001 B CN 103433001B
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Abstract
The invention belongs to the field of water treatment material and relates to a preparation method of biomass arsenic adsorbing material. The preparation method provided by the invention is as follows: peanut vine containing protein is modified, and the specific process comprises peanut vine cleaning, smashing, saccharomycetes treatment, cyclodextrin composition and the like. The biomass arsenic adsorbing material prepared by the invention has the following advantages: (1), chemical treatment is not involved, and the manufacturing process is green and environment-friendly; (2), the prepared biomass arsenic adsorbing material is purely natural and degradable; (3), saccharomycetes and cyclodextrin are fully used for playing the effects of chelating and absorbing pentavalent arsenic ions, and the adsorbing capacity of the pentavalent arsenic ions is promoted to 156 mg/g, that is, each gram adsorbing material can absorb 156 mg pentavalent arsenic ions, which is 8.5 times of activated carbon. The biomass arsenic adsorbing material prepared by the invention can be used for treating waste water containing arsenic ions, can be used for a drinking water device, and has a wide market prospect.
Description
Technical field
The invention belongs to material for water treatment technical field, be specifically related to a kind of preparation method of living beings arsenic adsorbent material.
Background technology
Reparation problem by arsenic polluted underground water body has caused worldwide extensive research and concern.The minimizing technology of current Arsenic in Drinking Water mainly contains coagulation, absorption, ion-exchange and film method etc.Wherein absorption method becomes the prefered method of Removal of Arsenic in Drinking Water because method is simple, reliable for effect.Adsorbent common at present has containing iron adsorbent, containing aluminium adsorbent etc., the advantages such as adsorption capacity is large, effect of removing arsenic is good that they have, but is difficult to because cost is higher promote (water for industrial use and waste water, 2005,36 (6), 35-38).China is large agricultural country, and the region Drinking water endemic arsenism lesion of China mostly is economy and (does not owe) developed regions, resident's relative distribution, be unfavorable for central water supply, therefore applied cost biological material that is cheap, abundance takes remediation of high As drinking water and to have broad prospects (Agriculture of Anhui science in China, 2008,36 (20), 8801-8802).
Biomass cellulose is the abundantest polymeric biomaterial (ion-exchange and the absorption of nature, 2010,26 (2), 187-192), can with many metal ion-chelants, therefore be widely used in water treatment industry, arsenic ion in adsorbed water, there is specific area and greatly, easily form that hydrophilic environments, sorption and desorption speed are fast, power of regeneration strong, purify the advantages such as thorough.
Microorganism (as bacterium, saccharomycete, algae, fungi etc.) is also the environmentally friendly sorbing material of a class, and material is cheap and easy to get, has a wide range of applications in arsenic-adsorbing.Carry out physical or chemical treatment to material before use and can improve its absorption property, physical method generally has heat treatment, autoclaving, freeze drying etc., and chemical method comprises acid adding, adds alkali or organic reagent etc.Utilize the existence of the activity change arsenic of microorganism, trivalent As (III) ionic oxide formation is become pentavalent As (V) ion, then in conjunction with other chemical reagent (as active carbon etc.) to reach the effective absorption to arsenic.
Nutrition content in peanut tendril enriches, and measures according to analysis, and containing thick protein, the crude fat of 2%, the carbohydrate of 46.8% of 12.9% in the peanut vine viticula leaf of sprawl growth, the gross protein value wherein in peanut leaf is up to 20%.
Novelty of the present invention is: (1) utilizes peanut tendril to be rich in the feature of protein, it is used saccharomycete process, and the protein of peanut tendril entrusts one's child to the care of sb. a large amount of saccharomycete, has facilitation to the arsenic adsorption capacity improving peanut tendril; (2) cyclodextrin molecular and pentavalent As (V) ion have extremely strong compatibility, utilize the feature that the space of peanut tendril cell membrane and cyclodextrin match, cyclodextrin molecular is embedded in peanut tendril, further increases the adsorption capacity of peanut tendril to arsenic; (3) peanut vine prepared overgrows the adsorbance of material sorbing material to pentavalent arsenic ion up to 156mg/g, and namely every gram of sorbing material adsorbable 156mg pentavalent arsenic ion, is 8.5 times of active carbon.
Summary of the invention
The invention belongs to technical field of water treatment, relate to a kind of preparation method of living beings arsenic adsorbent material.The preparation method that the present invention proposes is by the modification of proteinaceous peanut tendril, and concrete technology comprises that peanut tendril is cleaned, pulverizes, saccharomycete process and cyclodextrin compound etc.Living beings arsenic adsorbent material prepared by the present invention has the following advantages: (1) does not relate to chemical treatment, and technical process is green, environmental protection; (2) the living beings arsenic adsorbent material pure natural prepared, degradable; (3) make full use of saccharomycete and cyclodextrin to the chelating of pentavalent arsenic ion, suction-operated, the adsorbance of pentavalent arsenic ion is promoted to 156mg/g, and namely every gram of sorbing material adsorbable 156mg pentavalent arsenic ion, is 8.5 times of active carbon.Living beings arsenic adsorbent material prepared by the present invention both can be used for industrial enterprise containing arsenic ion wastewater treatment, and also can be used for drinking water apparatus, produce market has a extensive future.
The preparation method of the living beings arsenic adsorbent material that the present invention proposes, is characterized in that:
1) clean peanut tendril: by the rinsing of peanut tendril, oven dry;
2) peanut tendril is pulverized: the peanut tendril after clean is placed in pulverizer, and being ground into particle diameter is 20 ~ 60 object particles;
3) saccharomycete process: the peanut tendril after pulverizing is mixed with saccharomycete (specification: 200U/mg) and deionized water, stirs 1 hour, place 48 ~ 64 hours in 20 ~ 40 DEG C, filter, dry, obtain the peanut tendril of saccharomycete process; The weight ratio of wherein saccharomycete/peanut tendril/deionized water is 1/1000/2000;
4) cyclodextrin compound: the peanut tendril of saccharomycete process is placed in cyclodextrin aqueous solution 60 ~ 90 minutes, takes out, and filters, is placed in drying box, in 20 ~ 40 DEG C of dryings 4 ~ 8 hours, obtains living beings arsenic adsorbent material; Wherein, the mass concentration of cyclodextrin aqueous solution is 0.3% ~ 1.5%.
Living beings arsenic adsorbent material is placed in arsenic-containing waste water, regulates solution ph to be 5 ~ 6, in 20 DEG C of absorption 6 hours, the concentration of arsenic in waste water ion is 50 ~ 1000mg/L, adsorbs complete, filters, by detecting residual arsenic ionic weight in solution, obtain the arsenic ion adsorbance of Biomass arsenic adsorbent material.
The biological material of above-mentioned arsenic-adsorbing ion is placed in the phosphoric acid solution 1 hour that concentration is 0.1M, filters, clean, dry, complete desorption process, obtain the living beings arsenic adsorbent material of regeneration; Again above-mentioned regrown material is placed in arsenic-containing waste water, carries out arsenic ion absorption.Multiple circulation like this, until the arsenic ion adsorbance of living beings arsenic adsorbent material is less than 75% of first adsorbance.
Accompanying drawing explanation
Fig. 1 is the stereoscan photograph of living beings arsenic adsorbent material.
Detailed description of the invention
The invention is further illustrated by the following examples
Embodiment 1
Gathered in by peanut tendril, clean with running water, dry, the peanut tendril after clean is placed in pulverizer, and being ground into particle diameter is 20 ~ 60 object particles; Peanut tendril after pulverizing is mixed with saccharomycete (specification: 200U/mg) and deionized water, stirs 1 hour, place 48 hours in 20 DEG C, filter, dry, obtain the peanut tendril of saccharomycete process; The weight ratio of wherein saccharomycete/peanut tendril/deionized water is 1/1000/2000; The peanut tendril of saccharomycete process is placed in cyclodextrin aqueous solution 60 minutes, takes out, filter, be placed in drying box, in 20 DEG C of dryings 4 hours, obtain living beings arsenic adsorbent material; Wherein, the mass concentration of cyclodextrin aqueous solution is 0.8%.
0.2g living beings arsenic adsorbent material is placed in 150mL containing arsenic ion waste water, solution ph is regulated to be 5 ~ 6, in 20 DEG C of absorption 6 hours, the concentration of arsenic in waste water ion is 50 ~ 1000mg/L, adsorb complete, filter, by detecting residual arsenic ionic weight in solution, the arsenic ion adsorbance obtaining Biomass arsenic adsorbent material is 129mg/g, i.e. every gram of adsorbable 129mg arsenic ion of sorbing material.
The sorbing material of above-mentioned arsenic-adsorbing ion is placed in the phosphoric acid solution 1 hour that concentration is 0.1M, filters, clean, dry, complete desorption process, obtain the living beings arsenic adsorbent material of regeneration; Again above-mentioned regrown material is placed in arsenic-containing waste water, carries out arsenic ion absorption.10 circulations like this, the arsenic ion adsorbance of living beings arsenic adsorbent material still reaches 98mg/g, is greater than 75% of first adsorbance.
Embodiment 2
Gathered in by peanut tendril, clean with running water, dry, the peanut tendril after clean is placed in pulverizer, and being ground into particle diameter is 20 ~ 60 object particles; Peanut tendril after pulverizing is mixed with saccharomycete (specification: 200U/mg) and deionized water, stirs 1 hour, place 64 hours in 40 DEG C, filter, dry, obtain the peanut tendril of saccharomycete process; The weight ratio of wherein saccharomycete/peanut tendril/deionized water is 1/1000/2000; The peanut tendril of saccharomycete process is placed in cyclodextrin aqueous solution 90 minutes, takes out, filter, be placed in drying box, in 40 DEG C of dryings 8 hours, obtain living beings arsenic adsorbent material; Wherein, the mass concentration of cyclodextrin aqueous solution is 0.3%.
0.2g living beings arsenic adsorbent material is placed in 150mL containing arsenic ion waste water, solution ph is regulated to be 5 ~ 6, in 20 DEG C of absorption 6 hours, the concentration of arsenic in waste water ion is 50 ~ 1000mg/L, adsorb complete, filter, by detecting residual arsenic ionic weight in solution, the arsenic ion adsorbance obtaining Biomass arsenic adsorbent material is 156mg/g, i.e. every gram of adsorbable 156mg arsenic ion of sorbing material.
The sorbing material of above-mentioned arsenic-adsorbing ion is placed in the phosphoric acid solution 1 hour that concentration is 0.1M, filters, clean, dry, complete desorption process, obtain the living beings arsenic adsorbent material of regeneration; Again above-mentioned regrown material is placed in arsenic-containing waste water, carries out arsenic ion absorption.10 circulations like this, the arsenic ion adsorbance of living beings arsenic adsorbent material still reaches 124mg/g, is greater than 75% of first adsorbance.
Embodiment 3
Gathered in by peanut tendril, clean with running water, dry, the peanut tendril after clean is placed in pulverizer, and being ground into particle diameter is 20 ~ 60 object particles; Peanut tendril after pulverizing is mixed with saccharomycete (specification: 200U/mg) and deionized water, stirs 1 hour, place 56 hours in 30 DEG C, filter, dry, obtain the peanut tendril of saccharomycete process; The weight ratio of wherein saccharomycete/peanut tendril/deionized water is 1/1000/2000; The peanut tendril of saccharomycete process is placed in cyclodextrin aqueous solution 70 minutes, takes out, filter, be placed in drying box, in 30 DEG C of dryings 6 hours, obtain living beings arsenic adsorbent material; Wherein, the mass concentration of cyclodextrin aqueous solution is 1.5%.
0.2g living beings arsenic adsorbent material is placed in 150mL containing arsenic ion waste water, solution ph is regulated to be 5 ~ 6, in 20 DEG C of absorption 6 hours, the concentration of arsenic in waste water ion is 50 ~ 1000mg/L, adsorb complete, filter, by detecting residual arsenic ionic weight in solution, the arsenic ion adsorbance obtaining Biomass arsenic adsorbent material is 143mg/g, i.e. every gram of adsorbable 143mg arsenic ion of sorbing material.
The sorbing material of above-mentioned arsenic-adsorbing ion is placed in the phosphoric acid solution 1 hour that concentration is 0.1M, filters, clean, dry, complete desorption process, obtain the living beings arsenic adsorbent material of regeneration; Again above-mentioned regrown material is placed in arsenic-containing waste water, carries out arsenic ion absorption.10 circulations like this, the arsenic ion adsorbance of living beings arsenic adsorbent material still reaches 115mg/g, is greater than 75% of first adsorbance.
Embodiment 4
Gathered in by peanut tendril, clean with running water, dry, the peanut tendril after clean is placed in pulverizer, and being ground into particle diameter is 20 ~ 60 object particles; Peanut tendril after pulverizing is mixed with saccharomycete (specification: 200U/mg) and deionized water, stirs 1 hour, place 60 hours in 20 DEG C, filter, dry, obtain the peanut tendril of saccharomycete process; The weight ratio of wherein saccharomycete/peanut tendril/deionized water is 1/1000/2000; The peanut tendril of saccharomycete process is placed in cyclodextrin aqueous solution 80 minutes, takes out, filter, be placed in drying box, in 40 DEG C of dryings 5 hours, obtain living beings arsenic adsorbent material; Wherein, the mass concentration of cyclodextrin aqueous solution is 1.2%.
0.2g living beings arsenic adsorbent material is placed in 150mL containing arsenic ion waste water, solution ph is regulated to be 5 ~ 6, in 20 DEG C of absorption 6 hours, the concentration of arsenic in waste water ion is 50 ~ 1000mg/L, adsorb complete, filter, by detecting residual arsenic ionic weight in solution, the arsenic ion adsorbance obtaining Biomass arsenic adsorbent material is 153mg/g, i.e. every gram of adsorbable 153mg arsenic ion of sorbing material.
The sorbing material of above-mentioned arsenic-adsorbing ion is placed in the phosphoric acid solution 1 hour that concentration is 0.1M, filters, clean, dry, complete desorption process, obtain the living beings arsenic adsorbent material of regeneration; Again above-mentioned regrown material is placed in arsenic-containing waste water, carries out arsenic ion absorption.10 circulations like this, the arsenic ion adsorbance of living beings arsenic adsorbent material still reaches 122mg/g, is greater than 75% of first adsorbance.
Embodiment 5
Gathered in by peanut tendril, clean with running water, dry, the peanut tendril after clean is placed in pulverizer, and being ground into particle diameter is 20 ~ 60 object particles; Peanut tendril after pulverizing is mixed with saccharomycete (specification: 200U/mg) and deionized water, stirs 1 hour, place 50 hours in 40 DEG C, filter, dry, obtain the peanut tendril of saccharomycete process; The weight ratio of wherein saccharomycete/peanut tendril/deionized water is 1/1000/2000; The peanut tendril of saccharomycete process is placed in cyclodextrin aqueous solution 90 minutes, takes out, filter, be placed in drying box, in 40 DEG C of dryings 6 hours, obtain living beings arsenic adsorbent material; Wherein, the mass concentration of cyclodextrin aqueous solution is 0.8%.
0.2g living beings arsenic adsorbent material is placed in 150mL containing arsenic ion waste water, solution ph is regulated to be 5 ~ 6, in 20 DEG C of absorption 6 hours, the concentration of arsenic in waste water ion is 50 ~ 1000mg/L, adsorb complete, filter, by detecting residual arsenic ionic weight in solution, the arsenic ion adsorbance obtaining Biomass arsenic adsorbent material is 111mg/g, i.e. every gram of adsorbable 111mg arsenic ion of sorbing material.
The sorbing material of above-mentioned arsenic-adsorbing ion is placed in the phosphoric acid solution 1 hour that concentration is 0.1M, filters, clean, dry, complete desorption process, obtain the living beings arsenic adsorbent material of regeneration; Again above-mentioned regrown material is placed in arsenic-containing waste water, carries out arsenic ion absorption.10 circulations like this, the arsenic ion adsorbance of living beings arsenic adsorbent material still reaches 88mg/g, is greater than 75% of first adsorbance.
Claims (1)
1. a preparation method for living beings arsenic adsorbent material, is characterized in that:
1) clean peanut tendril: by the rinsing of peanut tendril, oven dry;
2) peanut tendril is pulverized: the peanut tendril after clean is placed in pulverizer, and being ground into particle diameter is 20 ~ 60 object particles;
3) saccharomycete process: be that saccharomycete and the deionized water of 200U/mg mix by peanut tendril and the specification after pulverizing, stir 1 hour, in 20 ~ 40 DEG C of placements 48 ~ 64 hours, filtration, drying, obtains the peanut tendril of saccharomycete process; The weight ratio of wherein saccharomycete/peanut tendril/deionized water is 1/1000/2000;
4) cyclodextrin compound: the peanut tendril of saccharomycete process is placed in cyclodextrin aqueous solution 60 ~ 90 minutes, takes out, and filters, is placed in drying box, in 20 ~ 40 DEG C of dryings 4 ~ 8 hours, obtains living beings arsenic adsorbent material; Wherein, the mass concentration of cyclodextrin aqueous solution is 0.3% ~ 1.5%.
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| CN104402148B (en) * | 2014-12-16 | 2016-09-14 | 马鞍山太时芯光科技有限公司 | A kind of secondary utilization method cutting the cutting water produced during gallium arsenide chips |
| CN105498711A (en) * | 2015-12-29 | 2016-04-20 | 淄博永辰环境影响评价有限公司 | Heavy metal ion adsorbent for livestock and poultry breeding wastewater, preparation method of heavy metal ion adsorbent and adsorption technology |
| CN106492753A (en) * | 2016-02-16 | 2017-03-15 | 朱小平 | A kind of preparation method of arsenic adsorbent material |
| CN106430374A (en) * | 2016-12-22 | 2017-02-22 | 郑州丽福爱生物技术有限公司 | Heavy-metal sewage treating agent |
| CN106587198A (en) * | 2016-12-22 | 2017-04-26 | 郑州丽福爱生物技术有限公司 | Heavy metal environment-friendly type sewage treating agent and preparing method thereof |
| CN110732310A (en) * | 2019-11-08 | 2020-01-31 | 安徽潜隆机电科技有限公司 | gas mask environment-friendly chromium-free carbon and preparation method thereof |
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| CN103071462A (en) * | 2013-02-28 | 2013-05-01 | 南京工业大学 | Modified peanut shell Hg(II) adsorbent, and preparation method and application thereof |
| CN103230780A (en) * | 2013-04-19 | 2013-08-07 | 湖北工业大学 | Heavy-metal absorbent prepared from vinasse and preparation method for same |
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| JPS61136435A (en) * | 1984-12-07 | 1986-06-24 | Agency Of Ind Science & Technol | Arsenic adsorbent |
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| CN103071462A (en) * | 2013-02-28 | 2013-05-01 | 南京工业大学 | Modified peanut shell Hg(II) adsorbent, and preparation method and application thereof |
| CN103230780A (en) * | 2013-04-19 | 2013-08-07 | 湖北工业大学 | Heavy-metal absorbent prepared from vinasse and preparation method for same |
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