Method for degrading trimethoprim by adopting microbial fuel cell

A trimethoprim, fuel cell technology, applied in biochemical fuel cells, chemical instruments and methods, biological water/sewage treatment, etc., can solve problems such as antibiotic residues, ecological environment and human health threats, and achieve high treatment efficiency. Effect

Active Publication Date: 2018-01-19
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the bottleneck problem that a large amount of refractory antibiotics remain in the environmen...

Method used

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  • Method for degrading trimethoprim by adopting microbial fuel cell
  • Method for degrading trimethoprim by adopting microbial fuel cell

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specific Embodiment approach 1

[0020] Specific embodiment one: this embodiment adopts the method for degrading trimethoprim by microbial fuel cell, specifically according to the following steps:

[0021] 1. Assemble and connect the data recorder: the data recorder is used to record the changes of the current data of the reactor in real time. Choose keithley2700 data logger, assemble and connect.

[0022] 2. Pretreatment of carbon brush electrode and cation exchange membrane: the carbon brush is first washed with deionized water to remove surface impurities, then soaked in acetone for 24 hours, then placed in a muffle furnace, burned at 600°C for 30 minutes, and finally placed in a deionized deionized water for later use; the cation exchange membrane was soaked in saturated sodium chloride solution for 24 h, and then rinsed with deionized water for later use.

[0023] 3. Assembling the reactor: Bipolar chamber microbial fuel cell is adopted. The main body is composed of cathode chamber and anode chamber. Th...

specific Embodiment approach 2

[0026] Embodiment 2: This embodiment differs from Embodiment 1 to Embodiment 2 in that the carbon brush soaked in acetone in step 2 is burned in a muffle furnace at 400° C. for 30 minutes. Others are the same as one of the specific embodiments 1 to 2.

specific Embodiment approach 3

[0027] Embodiment 3: The effective volume of the single-pole chamber reactor is 28 mL. Others are the same as one of the specific embodiments 1 to 2.

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Abstract

The invention relates to the field of sewage treatment, and discloses a method for degrading trimethoprim by adopting a microbial fuel cell (MFC). The invention aims to solve prominent problems that biological degradation difficulty is large, a residual amount in environments is high, biological toxicity is strong and the like existing in a current antibiotic treatment method, and aims to degradethe trimethoprim by adopting the microbial fuel cell and synchronously generate energy. The microbial fuel cell provides a novel way for production of renewable energy and treatment of the difficultly-degraded antibiotic trimethoprim. The method comprises the following steps: 1, assembling and connecting a data recorder; 2, pre-treating a carbon brush electrode and a cation exchange membrane; 3, assembling a reactor; 4, performing inoculation starting of the MFC and performing domestication of functional microorganisms; and 5, performing single substrate and co-substrate trixmethoprim anode degradation and producing electric energy. The method can be successfully applied to treatment of antibiotic wastewater, and is a fast and high-efficiency method; and as a catalyst, the microorganisms can directly converte chemical energy of the trixmethoprim into electric energy while degrading and utilizing the trixmethoprim.

Description

technical field [0001] The method relates to a method for degrading trimethoprim by using a microbial fuel cell. Background technique [0002] Nowadays, with the widespread use of antibiotics, a large amount of residues inevitably enter the water and soil environment. Under long-term toxic pressure, antibiotic resistance genes produce many antibiotic-resistant bacteria through horizontal transfer, and its frequent appearance can make many new antibiotic drugs ineffective, so it poses a serious threat to the ecological environment and human health, and has caused worldwide widespread attention within. Traditional antibiotic wastewater biological or physicochemical treatment technologies have shortcomings such as poor pertinence, low efficiency or high energy consumption, and many by-products. Therefore, a new, fast and efficient antibiotic wastewater pretreatment method is established, especially in the process It is of great significance to eliminate the antibacterial acti...

Claims

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Application Information

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IPC IPC(8): C02F3/34H01M8/16C02F101/34C02F101/38
CPCY02E60/50
Inventor 周爱娟魏瑶丽岳秀萍张家广汪素芳
Owner TAIYUAN UNIV OF TECH
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