CN102641729A - Modification and preparation method for preparing high-effective azo dye bioadsorbent and treatment technique thereof for azo dye wastewater - Google Patents
Modification and preparation method for preparing high-effective azo dye bioadsorbent and treatment technique thereof for azo dye wastewater Download PDFInfo
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- CN102641729A CN102641729A CN2012101529032A CN201210152903A CN102641729A CN 102641729 A CN102641729 A CN 102641729A CN 2012101529032 A CN2012101529032 A CN 2012101529032A CN 201210152903 A CN201210152903 A CN 201210152903A CN 102641729 A CN102641729 A CN 102641729A
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Abstract
The invention relates to a modification and preparation method for preparing a high-effective azo dye bioadsorbent and a treatment technique thereof for azo dye wastewater. The invention belongs to a biological treatment technique for water bodies polluted by azo dye, which is a method that adds the azo dye bioadsorbent prepared with modified edible mushroom tissues into an azo dye-polluted water body to adsorptively remove the azo dye in sewage from the water body. The invention sufficiently utilizes the advantages of edible mushrooms, i.e. high edible mushroom yield, cheapness, easy obtainment, low-cost modification method and easy operation, to prepare the bioadsorbent which can effectively adsorb the azo dye in water bodies, and the rate of removing the azo dye in water bodies can reach 95 to 99 percent.
Description
Technical field
The invention belongs to technical field of resource environments, be specifically related to utilize the biology absorption improvement technology of major pollutants in the gill fungus bacterium biological adsorption agent adsorbed water body (azo dyes pollution).
Background technology
Propelling and rapid development of economy along with socialist modernization drive; The a large amount of dischargings of various industrial organic waste waters have caused more and more serious pollution to China's water environment; The waste water from dyestuff of high COD such as dyeing waste water, leather waste water for example; Cause comparatively serious destruction for China's natural environment, run counter to this guiding theory of the Scientific Outlook on Development.Especially azo dyes waste water not only has strong carcinogenesis to biology, and also has very high colourity, has had a strong impact on the quality of water body environment and attractive in appearance.Therefore, administer waste water from dyestuff and also become the important step that people pay close attention to the most in the repairing environment process.So, present tradition improvement method mainly contains: advanced oxidation processes, biochemical Combined Treatment method, ultrasonic cavitation edman degradation Edman, electrochemical catalysis edman degradation Edman, liquid Membrane Separation Technique and microwave treatment technology etc.With regard to its cost and effect; All there be the high bottleneck problem difficult with operation of cost in these conventional methods; Therefore, people's sight having transferred on the adsorption treatment method gradually, sorbing material mainly is divided into natural physical absorbent, chemical synthesis adsorbent and biological adsorption agent three major types.Advantages such as wherein biological adsorption agent is big with its quantity, and cost is low, and operating procedure is simple have received people's favor.But there is certain defective in traditional biological adsorption agent; For example adsorption capacity is big inadequately; Thereby may cause secondary pollution by releasing organics in the adsorption process; Therefore, more and more become the focus of people's concern through the high-performance bio adsorbent of specially treated processing and preparing through common biomaterial.
Summary of the invention
The present invention is that the biological adsorption agent that utilizes the very large edible gill fungus hyphostroma of China's output to process through specific modification processing is handled the waste water that azo dyes pollutes.The edible gill fungus hyphostroma of using among the present invention comprises the mass-produced various edible mushrooms in China various places, has the good adsorption performance, can effectively adsorb the azo dyes of the multiple many concentration in the sewage.
Technical scheme
This purpose realizes through following proposal: collect edible gill fungus hyphostroma, and---airing of edible gill fungus bacterium or the oven dry that will obtain---are ground into fine powder with the gill fungus hyphostroma of oven dry---and under 25 ℃, it are carried out modification processing 24h with 2% natrium citricum; Wherein natrium citricum and gill fungus hyphostroma mass ratio are 1:5, and---water cleans to neutral---50 to 80 ℃ of dryings---and pulverized 200 mesh sieves;---------can remove 95 ~ 99% azo dyes through abundant absorption---taken out saturated adsorbent, through the NaNO of 0.1M to particle diameter＜74 μ m to put into azo dyes waste water to process efficient azo dyes adsorbent
3The azo dyes of eluant solution absorption---water is extremely neutral with the adsorbent flushing---oven dry;---discarded adsorbent is put into methane-generating pit and carried out biological decrement treatment after collecting---processing and back up to standard discharging are learned in natural pond liquefaction---, and the natural pond slag is concentrated landfill in repeated use;
In the such scheme, through NaNO
3Behind the eluant solution, can recycle and reuse adsorbent, through NaNO
3The adsorbent of eluant solution regeneration can reuse more than 5 times;
In the such scheme, the promptly edible gill fungus bacterium bacterium slag of adsorbent discarded after recycling drops into methane-generating pit fermentation methane and biological decrement, and natural pond liquefaction is learned and handled and back up to standard discharging, and the natural pond slag is concentrated landfill.
Beneficial effect of the present invention
Technology is administered in the biomaterial absorption that this water body azo dyes pollutes; With edible gill fungus hyphostroma is main sorbing material, wherein the edible mushroom source abundant, cheap and easy to get, can effectively adsorb organic matter ion in the waste water, it is cheap and easy to get that used chemical substance natrium citricum is handled in its modification; And operation is simple for processing method; Financial cost is low, and is with the obvious advantage to improving the raw material adsorption efficiency, the azo dyes pollutant of 95-99% in its overall adsorbable removing water body.
The specific embodiment
Embodiment 1
This example adopts long root mushroom as the biological adsorption agent raw material, and the high-performance bio adsorbent that makes through chemical modification is used for adsorbing the dyestuff of azo dyes waste water Congo red (diphenyl-4,4 '-two (azos-2-)-1-amino naphthalenes-4-sodium sulfonate).At first, collect long root mushroom, clean the back oven dry; Be crushed to the powder of the about 2mm of size then with pulverizer, handle making the long root mushroom biological adsorption agent with chemical modification, in the Congo red waste water with the consumption input pH4 of 4g/L; Take out adsorbent after 5 hours,, wait to reuse through the regeneration of dilute acid soln wash-out.In this example, Congo red amount can be measured through gas chromatography-mass spectrography technology (GC-MS), and adsorption rate adopts following formula to calculate: adsorption rate=(initial concentration-absorption back concentration)/initial concentration * 100%.The result shows: the biological adsorption agent that uses long root mushroom to make has 97.8% clearance rate to the organic wastewater that contains Congo red 20mg/L.Through 0.1M NaNO
3Wash-out regeneration, above-mentioned waste water of the same race is handled in 2 uses, and method of testing is with embodiment one, and the result shows the organic wastewater that contains Congo red 20mg/L to be had 96.5% clearance rate;
Embodiment 2
This example adopts long root mushroom as the biological adsorption agent raw material, and the biological adsorption agent that makes through chemical modification is handled the waste water from dyestuff that contains the Congo red pH4 of 20mg/L methyl orange (to the dimethylaminoazobenzene sodium sulfonate) and 20mg/L simultaneously.Carry out adsorption treatment in the consumption adding waste water with 10g/L, the result shows that the long root mushroom biological adsorption agent is 96.2% to the clearance of the methyl orange in the waste water, is 97.4% to clearance Congo red in the waste water.Through 0.1M NaNO
3Wash-out regeneration, above-mentioned waste water of the same race is handled in 5 uses, and method of testing is with embodiment one, and the result shows that this adsorbent is 95.9% to the clearance of the methyl orange in the waste water, is 97.1% to clearance Congo red in the waste water;
Embodiment three
This example adopts Ji mushroom as biological raw material, makes biological adsorption agent through chemical modification.This adsorbent is handled the waste water from dyestuff of the pH4 of the methyl red (butter yellow o-carboxylic acid) that contains 15mg/L methyl orange and 10mg/L respectively with the consumption of 5g/L.The result shows that Ji mushroom biological adsorption agent is 98.1% to the adsorption rate of the methyl orange in the waste water, and the adsorption rate of paramethyl red is 97.8%.Through 0.1M NaNO
3Wash methyl red and take off regeneration, above-mentioned waste water of the same race is handled in 4 uses, and method of testing is with embodiment one, and the result shows that this adsorbent is 97% to the adsorption rate of the methyl orange in the waste water, and the adsorption rate of paramethyl red is 97.4%;
Embodiment four
It is raw material that this example adopts pleurotus eryngii; Make the pleurotus eryngii biological adsorption agent, add with the consumption of 5g/L in the waste water from dyestuff of the pH4 that contains 12mg/L Sudan red 1 (1-phenylazo-beta naphthal), 15mg/L methyl red and 10mg/L methyl orange respectively and carry out adsorption treatment.The result shows that the pleurotus eryngii biological adsorption agent is 97% to the clearance of Sudan red 1, and the clearance of paramethyl red is 98.5%, is 96.7% to the clearance of methyl orange.Through 0.1M NaNO
3After the wash-out regeneration, handle above-mentioned waste water of the same race 3 times, method of testing is with embodiment one, and the result shows that this adsorbent is 96.6% to the clearance of Sudan red 1, and the clearance of paramethyl red is 96%, is 95% to the clearance of methyl orange;
Embodiment five
This example adopts mushroom to make the mushroom biological adsorption agent as raw material, handles the waste water from dyestuff of the pH4 that contains 20mg/L Sudan red 1 and 20mg/L Sudan red 1 I (1-[(2, the 4-dimethyl benzene) azo]-beta naphthal) simultaneously with the consumption of 10g/L.The result shows that the mushroom biological adsorption agent is 97.1% to the adsorption rate of Sudan red 1, is 96.4% to the adsorption rate of Sudan red 1 I.Through 0.1M NaNO
3After the wash-out regeneration, handle above-mentioned waste water of the same race 5 times, method of testing is with embodiment one, and the result shows that this adsorbent is 95.8% to the adsorption rate of Sudan red 1, is 95.2% to the adsorption rate of Sudan red 1 I;
Embodiment six
This example adopts coprinus comatus to make the coprinus comatus biological adsorption agent as raw material; Join with the consumption of 20g/L and to contain 12mg/L directly black 168 ([[4'-[(2 for 4-amino-3-; The 4-diamino-phenyl) azo]-2,2'-disulfo [1,1'-biphenyl]-4-yl] azo]-5-hydroxyl-6-(phenylazo)-2; The 7-naphthalenedisulfonic acid) in the waste water from dyestuff, adsorbs improvement.The result shows that the coprinus comatus biological adsorption agent is 97% to direct black 168 clearance rate.Through 0.1M NaNO
3After the wash-out regeneration, 2 above-mentioned waste water of the same race of processing, method of testing is with embodiment one, and the result shows that this adsorbent is 96% to direct black 168 clearance rate;
Embodiment seven
This example adopts coprinus comatus to make the coprinus comatus biological adsorption agent as raw material; With the consumption of 4g/L join respectively contain 15mg/L directly black 168 with the waste water from dyestuff of the pH4 of the direct grey AC of 15mg/L (6-[[2-amino-4-[(2-ethoxy) amino] phenyl] azo]-3-[[4-[[4-[[7-[(2-is amino)-4-[(2-ethoxy) amino] phenyl] azo]-1-hydroxyl-3-sulfo group-2-naphthyl] azo] phenyl] amino]-3-sulfophenyl] azo]-4-hydroxyl-2-naphthalene sulfonic acids trisodium salt) in, carry out adsorption treatment.The result shows, the coprinus comatus biological adsorption agent is 97.8% to direct black 168 clearance, is 98.9% to the clearance of direct grey AC.Through 0.1M NaNO
3Wash-out regeneration, 2 recyclings are handled above-mentioned waste water of the same race, and method of testing is with embodiment one, and the result shows, and this adsorbent is 97% to directly deceiving 168 clearance, is 96% to the clearance of direct grey AC;
Embodiment eight
This example adopts two spore mushrooms to make two spore mushroom biological adsorption agents as raw material, contains simultaneously with the consumption input of 10g/L in the waste water from dyestuff of pH4 of 18mg/L Sudan red 1,18mg/L methyl orange and the direct grey AC of 18mg/L, carries out adsorption treatment.The result shows that two spore mushroom biological adsorption agents are 96.7% to the adsorption rate of Sudan red 1, is 97.8% to the adsorption rate of methyl orange, is 97% to the adsorption rate of direct grey AC.Through 0.1M NaNO
3Wash-out regeneration, 3 recyclings are handled above-mentioned waste water of the same race, and method of testing is with embodiment one, and the result shows that this adsorbent is 95.5% to the adsorption rate of Sudan red 1, is 97.3% to the adsorption rate of methyl orange, is 95.8% to the adsorption rate of direct grey AC;
Claims (5)
1. this invention is a kind of modification method for preparing of efficient azo dyes biological adsorption agent and to the improvement of azo class waste water from dyestuff technology; It is characterized in that the prepared efficient azo dyes biological adsorption agent in edible gill fungus hyphostroma process modification processing back can directly be used for adsorbing the azo dyes of waste water, makes waste water reach discharging standards.
2. the modification method for preparing of efficient azo dyes biological adsorption agent according to claim 1 is characterized in that used absorption raw material are the gill fungus hyphostroma.
3. the modification method for preparing of efficient azo dyes biological adsorption agent according to claim 1; The gill fungus hyphostroma that its characteristics are the adsorbed water body azo dyes is handled through modification and is obtained; Promptly utilize 2% natrium citricum under 25 ℃, it to be carried out modification and handle 24h, wherein natrium citricum and gill fungus hyphostroma mass ratio are 1:5, and be extremely neutral with the running water flushing again; 50-80 ℃ of drying is crushed to the prepared efficient azo dyes biological adsorption agent of diameter＜74 μ m.
4. this adsorbent according to claim 1 is characterized in that to the improvement technology of azo class waste water from dyestuff waste water reaches discharging standards through after this efficient azo dyes biological adsorption agent absorption.
5. this adsorbent according to claim 1 is to the improvement technology of azo class waste water from dyestuff; After it is characterized in that saturated absorption; After this efficient azo dyes biological adsorption agent can utilize 0.1M diluted acid (nitric acid or hydrochloric acid) solution to carry out wash-out, water was rinsed well, reuses again; After reusing for 5 times, the mass loss of this azo dyes adsorbent＜10%.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104495971A (en) * | 2014-11-27 | 2015-04-08 | 福建农林大学 | Method for processing aniline-blue-containing pollution wastewater by using cultivation material of harvested pleurotus eryngii |
| CN108622974A (en) * | 2018-05-04 | 2018-10-09 | 天津工业大学 | A method of using brown mushroom give up bacteria residue handle textile printing and dyeing waste water from dyestuff |
| CN112934191A (en) * | 2021-02-25 | 2021-06-11 | 广东轻工职业技术学院 | Dye adsorbent and preparation method and application thereof |
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| CN101130158A (en) * | 2006-08-21 | 2008-02-27 | 中国科学院生态环境研究中心 | Biological adsorption agent, producing method and use of the same |
| CN101284700A (en) * | 2008-04-11 | 2008-10-15 | 四川大学 | Treatment of heavy metal and organic matter in water with bio- adsorbent prepared from mushroom |
| CN101733075A (en) * | 2008-11-07 | 2010-06-16 | 中国科学院沈阳应用生态研究所 | Preparation method of modified fungus bran adsorbent for discoloring dye waste water |
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2012
- 2012-05-17 CN CN2012101529032A patent/CN102641729A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101130158A (en) * | 2006-08-21 | 2008-02-27 | 中国科学院生态环境研究中心 | Biological adsorption agent, producing method and use of the same |
| CN101284700A (en) * | 2008-04-11 | 2008-10-15 | 四川大学 | Treatment of heavy metal and organic matter in water with bio- adsorbent prepared from mushroom |
| CN101733075A (en) * | 2008-11-07 | 2010-06-16 | 中国科学院沈阳应用生态研究所 | Preparation method of modified fungus bran adsorbent for discoloring dye waste water |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104495971A (en) * | 2014-11-27 | 2015-04-08 | 福建农林大学 | Method for processing aniline-blue-containing pollution wastewater by using cultivation material of harvested pleurotus eryngii |
| CN104495971B (en) * | 2014-11-27 | 2016-09-07 | 福建农林大学 | After pleurotus eryngii is gathered, planting material processes the method containing aniline blue pollutant effluents |
| CN108622974A (en) * | 2018-05-04 | 2018-10-09 | 天津工业大学 | A method of using brown mushroom give up bacteria residue handle textile printing and dyeing waste water from dyestuff |
| CN108622974B (en) * | 2018-05-04 | 2020-12-04 | 天津工业大学 | Method for treating textile printing and dyeing dye wastewater by using brown mushroom waste residues |
| CN112934191A (en) * | 2021-02-25 | 2021-06-11 | 广东轻工职业技术学院 | Dye adsorbent and preparation method and application thereof |
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Application publication date: 20120822 |