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Preparation method for nanometer microelectrolysis material used for removing tetracycline pollutants

A technology of tetracyclines and micro-electrolysis, which is applied in the direction of water pollutants, chemical instruments and methods, water/sewage treatment, etc., can solve the problems of high treatment cost, unoptimistic treatment status, incomplete mineralization, etc., and achieve rapid response, Quick removal effect, highly reactive effect

Inactive Publication Date: 2017-07-11
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Water pollution caused by antibiotics has been widely concerned, but the treatment status is not optimistic
Due to the nature of antibiotics, the traditional biological treatment has great limitations, and the advanced oxidation technology alone has the problems of high treatment cost and incomplete mineralization

Method used

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  • Preparation method for nanometer microelectrolysis material used for removing tetracycline pollutants
  • Preparation method for nanometer microelectrolysis material used for removing tetracycline pollutants
  • Preparation method for nanometer microelectrolysis material used for removing tetracycline pollutants

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Step 1: Pass WPAC through a 100-mesh sieve, soak in ultrapure water for 24 hours, put it in an oven at 120°C, and dry it for 2 hours before use. FeSO 4 ·7H 2 O the solid is ground and pulverized, and after passing through a 100-mesh sieve, it is set aside.

[0029] Step 2: take by weighing 3.268g of sodium borohydride (NaBH 4 ) into a beaker, and dissolve it with ultrapure water to prepare a 5mol / L sodium borohydride solution, which is named as preformed solution A.

[0030] Step 3: Weigh 10.000g of FeSO 4 ·7H 2 The O solid was dissolved in a 150mL 4 / 1 (v / v) ethanol / water mixed solution in a beaker, then placed in an ultrasonic cleaner for 10min, and then 0.864g (FeSO 4 ·7H 2 The mass ratio of O to activated carbon is 1:2) WPAC is added to the above mixed solution, and then ultrasonicated for 15 minutes, so that WPAC and the mixed solution are fully mixed, and the prefabricated solution B is prepared.

[0031] Step 4: Slowly add the prefabricated solution A solut...

Embodiment 2

[0039] Step 1: Pass CSPAC through a 100-mesh sieve, soak it in ultrapure water for 24 hours, put it in an oven at 120°C, and dry it for 2 hours before use. FeSO 4 ·7H 2 O The solid is ground and pulverized, and passed through a 100-mesh sieve for subsequent use.

[0040] Step 2: take by weighing 3.268g of sodium borohydride (NaBH 4 ) into a beaker, and dissolve it with ultrapure water to prepare a 5mol / L sodium borohydride solution, which is named as preformed solution A.

[0041] Step 3: Weigh 10.000g of FeSO 4 ·7H 2 The O solid was dissolved in a 150mL 4 / 1 (v / v) ethanol / water mixed solution in a beaker, then placed in an ultrasonic cleaner for 10min, and then 0.864g (FeSO 4 ·7H 2 The molar ratio of O to activated carbon is 1:2) CSPAC is added to the above mixed solution, and then ultrasonicated for 15 minutes, so that WPAC and the mixed solution are fully mixed, and the prefabricated solution B is prepared.

[0042] Step 4: Slowly add the prefabricated solution A solu...

Embodiment 3

[0048] Step 1: Pass COPAC through a 100-mesh sieve, soak it in ultrapure water for 24 hours, put it in an oven at 120°C, and dry it for 2 hours before use. FeSO 4 ·7H 2 O The solid is ground and pulverized, and passed through a 100-mesh sieve for subsequent use.

[0049] Step 2: take by weighing 3.268g of sodium borohydride (NaBH 4 ) into a beaker, and dissolve it with ultrapure water to prepare a 5mol / L sodium borohydride solution, which is named as preformed solution A.

[0050] Step 3: Weigh 10.000g of FeSO 4 ·7H 2 The O solid was dissolved in a 150mL 4 / 1 (v / v) ethanol / water mixed solution in a beaker, then placed in an ultrasonic cleaner for 10min, and then 0.864g (FeSO 4 ·7H 2 The molar ratio of O to activated carbon is 1:2) COPAC is added to the above mixed solution, and then ultrasonicated for 15 minutes, so that WPAC and the mixed solution are fully mixed, and the prefabricated solution B is prepared.

[0051] Step 4: Slowly add the prefabricated solution A solu...

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Abstract

The invention provides a preparation method for a nanometer microelectrolysis material used for removing tetracycline pollutants, belonging to the technical field of treatment of slightly-polluted water. The preparation method comprises the following steps: dissolving ferrous sulfate heptahydrate solid powder or / and copper sulfate pentahydrate solid powder in a mixed solution of ethanol and water and carrying out ultrasonic dispersion; then adding powdery active carbon and carrying out ultrasonic dispersion again; and rapidly adding a sodium borohydride solution and carrying out a stirring reaction at the same time so as to obtain a novel black solid particle nanometer iron-carbon microelectrolysis material or a novel black solid particle copper-loaded nanometer microelectrolysis material. The nanometer microelectrolysis material prepared in the invention can efficiently and rapidly remove tetracycline antibiotic pollutants, and the removal rate of the tetracycline antibiotic pollutants can reach 94.5 to 97.9%.

Description

technical field [0001] The invention belongs to the technical field of micro-polluted water treatment, and in particular relates to a novel nano-micro electrolytic material for removing tetracycline pollutants and a preparation method thereof. Background technique [0002] As a new class of pollutants, antibiotics have become one of the important environmental problems, and they are widely used in human and animal medicines, disinfection, additives and other products that are closely related to people's lives. At present, antibiotics have been detected in soil, surface water and sediment, groundwater, and even in human blood, urine, and breast milk. Water pollution caused by antibiotics has been widely concerned, but the status quo of treatment is not optimistic. Due to the nature of antibiotics, the traditional biological treatment has great limitations, and the advanced oxidation technology alone has the problems of high treatment cost and incomplete mineralization. [0...

Claims

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Application Information

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IPC IPC(8): C02F1/461C02F101/30C02F101/36C02F101/38C02F103/34
CPCC02F1/46109C02F1/4678C02F2001/46133C02F2101/30C02F2101/36C02F2101/38C02F2103/343C02F2305/08
Inventor 邹东雷刘雨知王晨隋振英
Owner JILIN UNIV
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