A kind of device and method for measuring cw-mfc reaction rate
A technology of reaction rate and coupling device, which is applied in the direction of measuring devices, chemical instruments and methods, instruments, etc., can solve the problems of being easily disturbed by the external environment, long measurement period of iodometric method, complicated operation and maintenance, etc., and achieves low cost and easy operation. Convenience and the effect of improving measurement accuracy
Active Publication Date: 2022-01-28
HOHAI UNIV
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Problems solved by technology
Common dissolved oxygen measurement methods include amperometric method and iodometric method, etc., but the iodometric method has a long measurement cycle, cumbersome procedures, and is easily disturbed by the external environment, while the amperometric method needs to constantly stir the sample, replace the electrolyte, and activate the electrode. The operation and maintenance are more complicated, and the commonly used electrodes of the current method are heavy metals such as silver and platinum, which will cause secondary pollution problems
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[0023] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0024] Such as figure 1 The shown device for measuring the reaction rate of CW-MFC includes a battery coupling device 1, a measuring circuit 2, and a single-chip microcomputer 3; the battery coupling device 1 is a semi-closed cavity with an upper end opening, and from left to right are Water inlet 101, cathode chamber 102, film 103, the first filter material area 104, anode chamber 105, the second filter material area 106, pebble layer 107 and water outlet 108, the plant layer 109 is laid at the upper opening; Be the granular activated carbon of particle diameter 4mm, filler thickness 5cm, the filler of anode chamber 105 is the granular activated carbon of 5mm, filler thickness 10cm, film 103 is an oxygen-permeable membrane, the dissolved oxygen in the water is concentrated in the negative electrode to be reduced. The first f...
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Abstract
The invention discloses a device for measuring the reaction rate of CW-MFC, which comprises a battery coupling device, a measuring circuit and a single-chip microcomputer; the battery coupling device is a semi-closed cavity with an upper end open, and from one side to the other Water inlet, cathode chamber, film, first filter material area, anode chamber, second filter material area, pebble layer and water outlet, plant layer is laid at the opening of the upper end; the two ends of the measurement circuit are respectively connected to the cathode chamber of the battery coupling device And the anode chamber is used to measure its internal voltage value, the battery coupling device is connected with the single-chip microcomputer through the measurement circuit, and the measurement method of the device is also disclosed, and the device can accurately measure the rate of change of the internal oxygen concentration, which is the CW-MFC reaction speed.
Description
technical field [0001] The invention relates to the field of reaction rate measurement, in particular to a device and method for measuring CW-MFC reaction rate. Background technique [0002] Constructed wetland-microbial fuel cell (CW-MFC) is a system that couples constructed wetlands with microbial fuel cells. Due to its innovation and excellent environmental benefits, it has been used in many fields such as printing and dyeing wastewater degradation and rural domestic sewage purification. Has been widely used. Constructed wetland-microbial fuel cells can not only take advantage of the alternating aerobic and anaerobic environments inside constructed wetlands, but also take advantage of the advantages of microbial fuel cells to convert chemical energy into electrical energy. While removing pollutants, bioelectricity can be achieved. [0003] However, there are still many problems in the constructed wetland-microbial fuel cell, which need to be improved and adjusted in time...
Claims
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IPC IPC(8): C02F3/00G01N27/413G01N27/416
CPCG01N27/413G01N27/416C02F3/005
Inventor 杨士红江赜伟庞晴晴徐俊增
Owner HOHAI UNIV