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Electrode, single-pole-compartment bio-electrochemical equipment and method for adjusting hydraulic flow state of single-pole-compartment bio-electrochemical equipment

A technology of electrodes and equipment, which is applied in the field of wastewater treatment, can solve the problems of high cost and large-scale engineering application, and achieve the effect of increasing the concentration of pollutants on the electrode surface, high controllability, and easy operation

Active Publication Date: 2017-07-25
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these modification methods are difficult to achieve large-scale engineering applications in terms of operation and cost.

Method used

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  • Electrode, single-pole-compartment bio-electrochemical equipment and method for adjusting hydraulic flow state of single-pole-compartment bio-electrochemical equipment
  • Electrode, single-pole-compartment bio-electrochemical equipment and method for adjusting hydraulic flow state of single-pole-compartment bio-electrochemical equipment
  • Electrode, single-pole-compartment bio-electrochemical equipment and method for adjusting hydraulic flow state of single-pole-compartment bio-electrochemical equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] In the embodiment of the present invention, the 304 stainless steel mesh with an aperture specification of 50 meshes is cut into 2 pieces of stainless steel mesh with a size of 80mm (We) × 1470mm (Le), and the cut stainless steel mesh is folded by an industrial bending machine , so that the length δ of the electrode wrinkle is 30 mm, and the bending angle α of the wrinkled electrode is 40°; the height of the whole electrode is 550 mm, among which the height h1 of the wrinkle area of ​​the wrinkle electrode is 500 mm, and the height h2 of the current collecting area is 50 mm; the bending angle Two electrodes with α of 40° were soaked in a mixture of ethanol: acetone = 1 (volume ratio), cleaned for 15 minutes under ultrasonic conditions at room temperature; 2 SO 4 solution, soaked at room temperature for 24 hours, then took out the electrode and rinsed it with deionized water for 3 times before dipping it dry. Drill a hole in the electrode current collecting area, the di...

Embodiment 2

[0061] The same as in Example 1, the only difference is that the 50-mesh 304 stainless steel mesh is cut into two pieces of stainless steel mesh with a size of 80mm (We) × 2930mm (Le), and the bending angle α of the pleated electrode is 20°. The prepared two electrodes are placed in a plexiglass reactor with a size of 80mm (Wr) × 44mm (Lr) × 580mm (Hr), and a size of 500mm (h3 )×2mm(d), a pleated insulating plastic sheet with a bending angle β of 20°, keeping the distance between the anode and cathode at 2mm.

Embodiment 3

[0063] Same as Example 1, the only difference is that the prepared two electrodes are placed in a plexiglass reactor with a size of 80mm (Wr) × 40mm (Lr) × 580mm (Hr), and they are attached to the two side walls of the reactor. A pleated insulating plastic sheet with a size of 500mm(h3)×6mm(d) and a bending angle β of 20° is placed on the edge, and the distance between the anode and the cathode is maintained at 4mm.

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Abstract

The invention provides a corrugated electrode which is provided with a Z-shaped bent section and is arranged in single-pole-compartment bio-electrochemical equipment. Therefore, the invention further provides a method for adjusting the hydraulic flow state of the single-pole-compartment bio-electrochemical equipment. The hydraulic flow state adjusted and optimized through the method can increase the concentration of pollutants on the surface of the electrode, promote degradation of the pollutants on the surface of the electrode, prolong the actual retention time of the pollutants in a reactor, reduce the dead volume of the reactor and relieve the problems of channeling, short flow and the like. Meanwhile, the method is easy to operate, low in cost and high in efficiency; the application potential of the bio-electrochemical equipment is enhanced to an extremely large extent; moreover, the single-pole-compartment bio-electrochemical equipment can be applied to an efficient bio-electrochemical system for treating high-concentration industrial wastewater, mixed wastewater in an industrial park and slightly polluted wastewater.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment, and in particular relates to an electrode, a monopolar chamber bioelectrochemical device and a method for adjusting its hydraulic flow state. Background technique [0002] As an emerging water treatment technology, the bioelectrochemical system has attracted more and more attention and research for its great potential in refractory organic pollutants and resource and energy recovery. In the bioelectrochemical system, microorganisms are used as catalysts to convert chemical energy into electrical energy; in this technology, anode microorganisms efficiently utilize small molecular organic matter in wastewater, and domesticated cathode microorganisms use electrodes as electron donors to convert and degrade organic pollutants. The demand for the source electron donor is much smaller than that of the traditional anaerobic process; this technology accelerates the degradation of some refra...

Claims

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Application Information

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IPC IPC(8): C02F3/00C02F101/30
CPCC02F3/005C02F2101/30
Inventor 王爱杰王鸿程程浩毅崔丹
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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