Continuous flow wetland type microbial fuel cell reactor sewage treatment device

A sewage treatment device and fuel cell technology, applied in the direction of biological water/sewage treatment, biochemical fuel cell, water/sewage multi-stage treatment, etc., can solve the problems of siltation, large footprint, blockage, etc., to avoid easy blockage, Avoid the effect of affecting

Pending Publication Date: 2019-08-09
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of conventional constructed wetlands is that it occupies a relatively large area, which is about 2-3 times that of traditional sewage treatment processes, and is prone to siltation, blockage, etc.

Method used

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  • Continuous flow wetland type microbial fuel cell reactor sewage treatment device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 As shown, a continuous flow wetland type microbial fuel cell reactor sewage treatment device includes a hydrolytic acidification tank (3), an anode chamber (6) and a constructed wetland cathode chamber arranged in sequence from bottom to top.

[0033] The sewage to be treated is input into the hydrolysis acidification tank (3) through the water inlet system, the water inlet system includes the water inlet pump (1) and the water distributor (2); the water distributor (2) is composed of the water inlet pipe and the perforated plate, wherein The water pipe is connected to the water inlet pump (1), the perforated plate is arranged at the bottom of the hydrolytic acidification tank (3), and holes with a diameter of 10mm are evenly distributed on the perforated plate, and the hydrolytic acidification tank (3) contains elastic fillers. Sewage enters the bottom of the perforated plate through the water inlet pump (1) and the water inlet pipe. After the upward f...

Embodiment 2

[0042] A continuous flow wetland type microbial fuel cell reactor sewage treatment device, the diameter of the uniformly distributed holes on the perforated plate of the water distributor 2 used is 12mm,

[0043] Its structure is the same as that of Example 1, the particle diameter of the granular activated carbon filled in the anode chamber is 4-6mm, the particle diameter of the anaerobic granular sludge is 4-6mm, the volume ratio of the two is 1:1, and the filler supporting layer 4 has a pore size smaller than 2mm perforated HDPE sheet. The water seal tank 14 controls the pressure in the air chamber of the three-phase separator 8, and the water seal water pressure is 35cm.

[0044] The particle size of the activated carbon filled in the cathode chamber of the constructed wetland is 6-8mm, and 12 plants selected in the cathode chamber of the constructed wetland are calamus, and the planting density is 15 plants / m 2 .

[0045] The resistance value of the resistor 13 is 1000Ω...

Embodiment 3

[0051] A continuous flow wetland type microbial fuel cell reactor sewage treatment device, the diameter of the uniformly distributed holes on the perforated plate of the water distributor 2 used is 15mm. The particle size of the granular activated carbon filled in the anode chamber is 3-6mm, the particle size of the anaerobic granular sludge is 3-6mm, the volume ratio of the two is 2:1, and the water seal tank 14 controls the water seal in the air chamber of the three-phase separator 8 The water pressure is 45cm, the particle size of the activated carbon filled in the cathode chamber of the constructed wetland is 5-7mm, the plants 12 selected in the cathode chamber of the constructed wetland are cattails, and the planting density is 20 plants / m 2 . The resistance value of the resistor 13 is 2000Ω.

[0052] All the other structures are with embodiment 1.

[0053] Using the above-mentioned continuous flow wetland type microbial fuel cell reactor sewage treatment device to trea...

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Abstract

The invention relates to a continuous flow wetland type microbial fuel cell reactor sewage treatment device. The device comprises a hydrolysis acidification tank (3), an anode chamber (6) and a constructed wetland cathode chamber which are sequentially arranged from bottom to top, the anode chamber (6) is filled with a filler composed of anaerobic granular sludge and granular activated carbon, ananode electrode (7) is arranged in the filler, the constructed wetland cathode chamber is filled with granular activated carbon, a cathode electrode (10) is arranged in the cathode electrode (10) , and the anode electrode (7) and the cathode electrode (10) are connected by a resistor (13); and sewage to be treated goes through the hydrolysis acidification tank (3) from the bottom, is hydrolyzed and acidified, then enters the anode chamber (6), is reacted, flows out of the anode chamber (6) from the top, and enters the constructed wetland cathode chamber, so sewage purification and electricitygeneration are simultaneously achieved. Compared with sewage treatment devices in the prior art, the device of the invention has the advantages of simple processing technology, simple use method, andsuitableness for treating various sewages.

Description

technical field [0001] The invention relates to the fields of environmental engineering and water treatment engineering, in particular to a continuous flow wetland type microbial fuel cell reactor sewage treatment device. Background technique [0002] With the rapid development of economy and society, solving the increasingly serious environmental pollution problem and exploring new energy sources are two fundamental issues for the sustainable development of human society, and they are also two focal issues in the world today. Microbial Fuel Cell (MFC) technology effectively links these two issues together and has attracted widespread attention. [0003] The organic matter in the sewage is decomposed and utilized under the action of the electrogenic bacteria to generate electricity, and the electricity energy is recovered while the sewage treatment is completed. In the anode compartment, organic substrates are decomposed into carbon oxides (such as CO 2 ) and other small m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14H01M8/16
CPCC02F9/00H01M8/16C02F3/00C02F3/32C02F2301/08Y02E60/50
Inventor 王进邱江平李旭东秦弋丰
Owner SHANGHAI JIAO TONG UNIV
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