CN103111265B - Preparation method of adsorbent for removing antibiotics in water, prepared adsorbent and application thereof - Google Patents
Preparation method of adsorbent for removing antibiotics in water, prepared adsorbent and application thereof Download PDFInfo
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- CN103111265B CN103111265B CN201310060595.5A CN201310060595A CN103111265B CN 103111265 B CN103111265 B CN 103111265B CN 201310060595 A CN201310060595 A CN 201310060595A CN 103111265 B CN103111265 B CN 103111265B
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Abstract
The invention relates to a preparation method of an adsorbent for removing antibiotics in water, a prepared adsorbent and application thereof. The method comprises the steps of 1, drying, crushing and sieving a fiber material to obtain material powder; 2, adding conditioning fluid to the material powder to react for 1-5 hours at room temperature to obtain a reactant, wherein the conditioning fluid is aqueous alkali or alcoholic solution; and 3, washing and filtering the reactant, baking, crushing and sieving the solid to obtain an adsorbent product. The preparation method disclosed by the invention is low in cost, and simple in craft process, and has wide market prospect; industrialization can be carried out; the prepared adsorbent is stable in property, and good in absorption efficiency; and the adsorbent also can be used as fuel, a fermentation substrate adjuster, or a nutrient source of special microorganism after being used. Therefore, secondary pollution is avoided to a great extent, and regeneration does not need to be considered.
Description
Technical field
The present invention relates to antibiotic sorbent preparation method, obtained adsorbent and application in a kind of removal water, belong to technical field of waste water processing.
Background technology
In China, the environmental pollution caused by abuse of antibiotics is day by day serious.The multiple industries such as medical treatment, pharmacy, livestock and poultry and aquaculture all can produce containing antibiotic waste water.In soil, surface water and groundwater, antibiotic existence detected at present.Containing hard-degraded substance in antibiotic waste water and have bio-toxicity, is the complicated organic wastewater compared with difficult degradation.These residual antibiotics not only cause harmful effect to ecological environment, also can jeopardize health by the transmission of food chain.
At present, be main to the process of antibiotic waste water mainly with biodegradation technique, its investment and processing cost higher, waste water actual treatment rate is but very low, efficiently and economically can not remove the antibiotic in water.Application number be 201110112108.6 Chinese invention patent application disclose the method for a kind of active carbon utilizing KOH to activate as sorbent treatment antibiotic waste water.Although the method effectively can process antibiotic waste water, but have the following disadvantages: (1) with commercial active carbon for raw material, need to use nitrogen, deionized water and the reaction temperature up to 850 DEG C in active carbon activation process, these improve production cost undoubtedly and increase energy consumption; (2) complicated process of preparation; (3) reclaim difficulty, regeneration cost is high, is difficult to sustainable use.Therefore, research and development are needed a kind ofly to prepare antibiotic adsorbent simple, with low cost.
Summary of the invention
Technical problem to be solved by this invention is: for prior art Problems existing, and provide a kind of and remove antibiotic sorbent preparation method in water, obtained adsorbent and application, this adsorbent can remove antibiotic in water.
The technology of the present invention design is as follows:
Containing abundant natural fiber material in agricultural byproducts refuse, if simple processing method can be adopted to make antibiotic high-efficiency adsorbent by these natural fiber materials, then alternative conventional carbon is used for containing antibiotic wastewater treatment, Simplified flowsheet, reduces costs.Meanwhile, also can realize utilizing the secondary resourceization of agricultural byproducts refuse, both alleviate environmental pollution, and can also resource utilization be improved.
The technical scheme that the present invention solves its technical problem is as follows:
Antibiotic sorbent preparation method in a kind of removal water, is characterized in that, comprise the following steps:
The first step, by dry for fibrous raw material, pulverize, sieve, obtain material powder;
Second step, in material powder, add treatment fluid, react 1 ~ 5 hour under room temperature, obtain reactant; Described treatment fluid is aqueous slkali or alcoholic solution;
3rd step, by reactant wash, filter to obtain solid, solid is dried, pulverizes, is sieved, obtains adsorbent finished product.
The technical scheme that the inventive method is perfect is further as follows:
Preferably, in the first step, described fibrous raw material is wood chip, peanut shell, pericarp, straw, straw, corncob, bagasse, bark or leaf.
Preferably, in the first step, described drying condition is: baking temperature 55 DEG C-65 DEG C, dries to constant weight; The described condition of sieving was 20 ~ 100 mesh sieves.
Preferably, NaOH solution or the KOH solution of to be mass concentration the be 2-20% of the aqueous slkali in second step; The ethanolic solution of alcoholic solution to be mass concentration be 76-95%.
Preferably, in second step, the w/v of described material powder and treatment fluid is 1:25-1:100.
Preferably, in the 3rd step, described wash conditions is: adopt distilled water washing until the rear liquid shows neutral of washing; Described drying condition is: bake out temperature 55 DEG C-65 DEG C, dries to constant weight; The described condition of sieving was 20 ~ 100 mesh sieves.
The present invention also provides a kind of adsorbent adopting above-mentioned preparation method to obtain.
In addition, the present invention also provides above-mentioned adsorbent for removing antibiotic application in water.
The inventive method uses agricultural byproducts refuse to be that adsorbent prepared by raw material, with low cost, achieves simultaneously and utilizes the secondary resourceization of agricultural byproducts refuse, alleviate environmental pollution.Sorbent preparation method of the present invention carries out at normal temperatures, and technical process is simple, not high to equipment requirement, can implement industrialization, have wide market prospects.Adsorbent of the present invention can also be used as the nutrient source etc. of fuel, fermentation substrate conditioning agent or extraordinary microorganism after a procedure, largely avoid secondary pollution and without the need to considering regeneration.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.But the invention is not restricted to given example.
Embodiment 1 prepares antibiotic adsorbent in removal water
The first step, by dry for fibrous raw material, pulverize, sieve, obtain material powder;
Wherein, fibrous raw material is wood chip, peanut shell, pericarp, straw, straw, corncob, bagasse, bark or leaf; Drying condition is: baking temperature 55 DEG C-65 DEG C, dries to constant weight (5 ~ 12 hours preferred drying times); The condition of sieving was 20 ~ 100 mesh sieves.
Second step, in material powder, add treatment fluid, react 1 ~ 5 hour under room temperature, obtain reactant; Described treatment fluid is aqueous slkali or alcoholic solution;
Wherein, NaOH solution or the KOH solution of aqueous slkali to be mass concentration be 2-20%; The ethanolic solution of alcoholic solution to be mass concentration be 76-95%; The w/v of material powder and treatment fluid is 1:25-1:100.
3rd step, by reactant wash, filter to obtain solid, solid is dried, pulverizes, is sieved, obtains adsorbent finished product.
Wherein, wash conditions is: adopt distilled water washing until the rear liquid shows neutral (preferred washing times at least 5-10 time, each consumption 250 ~ 500ml) of washing; Drying condition is: bake out temperature 55 DEG C-65 DEG C, dries to constant weight (preferred drying time 5 ~ 12 hours); The condition of sieving was 20 ~ 100 mesh sieves.
Concrete preparation case is such as shown in following table:
Table 1 first step parameter
Table 2 second step parameter
Table 3 the 3rd step parameter
Embodiment 2 embodiment 1 obtains adsorbent and removes antibiotic Performance Detection in water
Preparation 100mL contains the simulated wastewater of terramycin, tetracycline, fortimicin, and wherein three kinds of antibiotic initial concentrations are 200mg/L, and solution ph is 7.Each input 3g adsorbent, under room temperature condition, lucifuge oscillating reactions is after 20 hours, detects antibiotic clearance in waste water.
It is as shown in the table that each case of embodiment 1 removes antibiotic result.
Antibiotic result in water removed by table 4
In order to contrast, get the fibrous raw material without the process of embodiment 1 method---peanut shell, wood chip, directly adsorb antibiotic, adsorption conditions is described above.Experimental result is: the clearance of peanut shell to terramycin, tetracycline, fortimicin is respectively 19.70%, 31.71%, 67.31%, and the clearance of wood chip to terramycin, tetracycline, fortimicin is respectively 15.22%, 23.50%, 64.45%.
As can be seen here, adsorbent prepared by embodiment 1, compared with undressed fibrous raw material, significantly improves antibiotic adsorption capacity.Embodiment 1 obtains adsorbent can remove antibiotic in water, the highest to the clearance of fortimicin.It is pointed out that embodiment 1 obtains low adsorbent cost, as required with higher input ratio process waste water, the antibiotic removal effect suited the requirements can be obtained in actual use.
During actual use, first pH value of waste water is adjusted to 5 ~ 7, every 100ml waste water drops into 0.5 ~ 3g adsorbent, lucifuge oscillating reactions 10 ~ 20 hours under room temperature condition.
Compared with prior art, embodiment 1 obtains adsorbent tool and has the following advantages:
1, with low cost.The raw material of the present embodiment are wood chip, peanut shell etc., belong to agricultural byproducts refuse, have wide material sources, the advantage such as cheap, renewable.
2, preparation process is simple, and carry out all at normal temperatures, energy consumption is low, not high to equipment requirement, can implement industrialization, has wide market prospects.
3, only add conventional alkali or alcohol in preparation process, can not work the mischief to environment; Do not have a large amount of organic pigment strippings after process waste water and make water variable color, without the need to subsequent treatment link; Can also as the nutrient source etc. of fuel, fermentation substrate conditioning agent or extraordinary microorganism after adsorbent uses, largely avoid secondary pollution and without the need to considering regeneration.
4, the comparatively large and stable performance of adsorption capacity, applied widely.Multiple Classes of Antibiotics in adsorbable water, affects less by the factor such as adsorption temp, solution ph, and under certain condition, the clearance of tetracycline and fortimicin can reach 80 ~ 90%.
5, there is good economy and environment benefit.Raw material sources of the present invention is in agricultural byproducts refuse, and the high-efficiency adsorbent as a kind of cheapness is used for the adsorbent of alternative traditional costliness, not only can alleviate environmental pollution, can also improve resource utilization simultaneously.
Claims (2)
1. remove an antibiotic sorbent preparation method in water, it is characterized in that, comprise the following steps:
The first step, by dry for fibrous raw material, pulverize, sieve, obtain material powder;
Described drying condition is: baking temperature 55 DEG C-65 DEG C, dries to constant weight; The described condition of sieving was 20 ~ 100 mesh sieves;
Second step, in material powder, add treatment fluid, react 1 ~ 5 hour under room temperature, obtain reactant; Described treatment fluid is alcoholic solution; The ethanolic solution of alcoholic solution to be mass concentration be 76-95%; The w/v of described material powder and treatment fluid is 1:25-1:100;
3rd step, washed, filter to obtain solid by reactant, solid is dried, pulverizes, sieved, and described wash conditions is: adopt distilled water washing until the rear liquid shows neutral of washing; Described drying condition is: bake out temperature 55 DEG C-65 DEG C, dries to constant weight; The described condition of sieving was 20 ~ 100 mesh sieves; Obtain adsorbent finished product.
2. remove antibiotic sorbent preparation method in water according to claim 1, it is characterized in that, in the first step, described fibrous raw material is wood chip, peanut shell, pericarp, straw, straw, corncob, bagasse, bark or leaf.
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| CN105709498A (en) * | 2016-02-29 | 2016-06-29 | 徐州深蓝新材料科技有限公司 | Graphene carbon filtering material and preparation method thereof |
| CN107008234A (en) * | 2017-05-11 | 2017-08-04 | 北京益净环保设备科技有限公司 | Modification walnut shell adsorbent for Adsorption mafenide |
| CN106955673A (en) * | 2017-05-11 | 2017-07-18 | 北京益净环保设备科技有限公司 | Modified peanut adsorbent for Adsorption clindamycin |
| CN106975459A (en) * | 2017-05-11 | 2017-07-25 | 北京益净环保设备科技有限公司 | Modification cotton stem adsorbent for Adsorption pyrazinamide |
| CN106975460A (en) * | 2017-05-11 | 2017-07-25 | 北京益净环保设备科技有限公司 | Modified corn core adsorbent for Adsorption kanamycins |
| CN106925232A (en) * | 2017-05-11 | 2017-07-07 | 北京益净环保设备科技有限公司 | For the modified pine branch adsorbent of Adsorption polymyxins |
| CN108160052B (en) * | 2018-01-22 | 2020-10-30 | 桐源（上海）网络技术有限公司 | Preparation method of efficient air adsorption material |
| CN109292885A (en) * | 2018-10-30 | 2019-02-01 | 四川施邦威生物科技发展有限公司 | A kind of poultry farming waste water treating agent |
| CN110560007B (en) * | 2019-08-27 | 2020-10-09 | 湖南君悦达科技有限公司 | Preparation process of chloramphenicol adsorbent |
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| CN101912767A (en) * | 2010-08-31 | 2010-12-15 | 沈阳理工大学 | Method for preparing modified furfural residue heavy metal adsorbent |
| CN102716728A (en) * | 2012-07-03 | 2012-10-10 | 广西大学 | Preparation method of modified bagasse cellulose based heavy metal adsorbent |
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| CN101912767A (en) * | 2010-08-31 | 2010-12-15 | 沈阳理工大学 | Method for preparing modified furfural residue heavy metal adsorbent |
| CN102716728A (en) * | 2012-07-03 | 2012-10-10 | 广西大学 | Preparation method of modified bagasse cellulose based heavy metal adsorbent |
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