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Device and method for jointly degrading organic matters in bottom mud of water body by utilizing scrap iron and sediment microbial fuel cell

A technology of fuel cell and scrap iron, which is applied in biological sludge treatment, chemical instruments and methods, electrochemical sludge treatment, etc., can solve the problem of low removal rate, improve removal rate, reduce redox potential, change Acidogenic Type Effects

Pending Publication Date: 2020-02-18
同济大学浙江学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the technical problem of low removal rate of organic matter in existing bottom mud degradation methods, and provides a device and method for jointly degrading organic matter in bottom mud by using scrap iron chips and sediment microbial fuel cells

Method used

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  • Device and method for jointly degrading organic matters in bottom mud of water body by utilizing scrap iron and sediment microbial fuel cell

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Experimental program
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specific Embodiment approach 1

[0020] Specific Embodiment 1: The device of this embodiment that uses waste iron chips and sediment microbial fuel cells to jointly degrade organic matter in sediments includes a container 1, a sealing cover 2, a carbon fiber brush anode 3, a carbon fiber brush cathode 4, and electric energy collection and storage Device 5, surface aerator 6, submersible motor 7, switch 8;

[0021] Wherein the sealing cover 2 is arranged on the top of the container 1;

[0022] The carbon fiber brush anode 3 is placed on the bottom of the container 1, the carbon fiber brush cathode 4 is placed on the top of the container 1, the carbon fiber brush anode 3 is connected to the positive pole of the electric energy collection storage device 5; the carbon fiber brush cathode 4 is connected to the electric energy collection storage device 5 connected to the negative pole;

[0023] The surface aerator 6 is connected with the aeration head 6-1, and the aeration head 6-1 is placed under the carbon fiber...

specific Embodiment approach 2

[0025] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the device also includes an electric energy data collector 9 and a resistor 10, and the electric energy data collector 9 and the resistor 10 are connected in series to the positive and negative terminals of the electric energy collection and storage device 5 top notch. Others are the same as the first embodiment.

[0026] In this embodiment, the electric energy data collector 9 can observe the electricity production situation in real time, and can also judge the mechanical degradation situation through the electricity production situation. Resistor 10 prevents the formation of a short circuit.

specific Embodiment approach 3

[0027] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that the electric energy collection and storage device 5 is a storage battery. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a device and a method for jointly degrading organic matters in bottom mud of a water body by utilizing scrap iron and a sediment microbial fuel cell, and relates to a device and a method for degrading the organic matters. The method is used for solving the technical problem of low removal rate of the existing bottom mud organic matter removal method. The device comprises acontainer, a sealing cover, a carbon fiber brush anode, a carbon fiber brush cathode, a battery, a surface aerator, a submersible motor and a switch, the carbon fiber brush anode and the carbon fiberbrush cathode are respectively arranged at the bottom and the upper part of the container and are respectively connected with the battery; an aeration head is arranged below the cathode; a rotating middle shaft of the submersible motor is connected with the carbon fiber brush anode; the submersible motor is connected in series with the switch and then connected to the battery. The method comprisesthe following steps: adding the bottom mud polluted by the organic matters in the water body and corresponding overlying water into the container, and adding waste scrap iron into the bottom mud; performing aeration on the overlying water for degradation treatment. And after operation for 120 days, the removal rate of the organic matters reaches 80.6% or above and is nearly three times that of natural degradation. The method can be used in the field of water sediment remediation.

Description

technical field [0001] The invention relates to an organic matter degradation device and method. Background technique [0002] With the rapid development of industry and agriculture, a large amount of organic wastewater is discharged into water bodies, resulting in serious water pollution by organic matter. Pollutants maintain a dynamic equilibrium relationship between the water body and the bottom mud, and the pollutants in the bottom mud can be released into the upper water body through diffusion. Therefore, in order to fundamentally control water pollution, we must solve the problem of organic matter pollution in the sediment. Due to the lack of suitable electron acceptors in the sediment, its natural degradation process is very slow. The existing water body sediment treatment technology has problems such as high cost, not environmental protection, and incomplete treatment. [0003] The Chinese patent with application number 201310150096.5 discloses a device and method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/02C02F101/30
CPCC02F11/006C02F11/02C02F2101/30
Inventor 徐勋
Owner 同济大学浙江学院
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