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A test method for detecting anaerobic digestion based on electrochemical technology

An electrochemical technology and anaerobic digestion technology, which is applied in the field of detection of anaerobic digestion based on electrochemical technology, can solve the problems of low accuracy of measurement results, long cycle, and cumbersome data volume, etc., and achieve the goal of solving anaerobic digestion indicators Disadvantages of measurement, reducing workload, and solving the effect of long measurement cycle

Active Publication Date: 2020-09-01
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of long period, cumbersome data volume and low accuracy of measurement results in the test method of waste anaerobic digestion process in the prior art, the present invention provides a test method for detecting anaerobic digestion based on electrochemical technology. method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1.1) Cultivation of anaerobic digestion bacteria In the anaerobic digestion culture container, the anaerobic digested bagasse to be tested was added, and the carbon, nitrogen, phosphorus nutrients and sludge with a mass ratio of 1000:5:1 were added at the same time to carry out bacterial digestion. Seed culture, stand for 12 hours after the end of the culture of the strain for use;

[0021] (1.2) Electrode activation treatment sequentially 0.1um, 0.3um Al 2 o 3 Make a slurry, dip 0.1um, 0.3umAl in turn with metallographic sandpaper 2 o 3 The slurry polishes the working electrode to the mirror surface in one direction, which takes about 5-6 minutes. After polishing, the surface dirt is washed away, and then moved into the ultrasonic water bath for repeated cleaning, each time for 2-3 minutes, and finally with a volume ratio of 1:1 ethanol, 1:1 HNO 3 Ultrasonic cleaning with distilled water for 2-3 minutes, after which the reference electrode is saturated with calome...

Embodiment 2

[0024] (1.1) Cultivation of anaerobic digestion bacteria Add the anaerobically digested cabbage leaves to be tested in the anaerobic digestion culture container, and at the same time add the carbon, nitrogen, phosphorus nutrients and sludge with a mass ratio of 1000:5:1 to carry out bacterial digestion. Seed culture, stand for 12 hours after the end of the culture of the strain for use;

[0025] (1.2) Electrode activation treatment sequentially 0.1um, 0.3um Al 2 o 3 Make a slurry, dip 0.1um, 0.3umAl in turn with metallographic sandpaper 2 o 3 The slurry polishes the working electrode to the mirror surface in one direction, which takes about 5-6 minutes. After polishing, the surface dirt is washed away, and then moved into the ultrasonic water bath for repeated cleaning, each time for 2-3 minutes, and finally with a volume ratio of 1:1 ethanol, 1:1 HNO 3 Ultrasonic cleaning with distilled water for 2-3 minutes, after which the reference electrode is saturated with calomel e...

Embodiment 3

[0028] (1.1) Cultivation of anaerobic digestion bacteria Add the anaerobic digestion straw to be tested in the anaerobic digestion culture container, and at the same time add the carbon, nitrogen, phosphorus nutrients and sludge with a mass ratio of 1000:5:1 to carry out the bacterial strain Cultivate, and stand for 12 hours after the culture of the strain is finished;

[0029] (1.2) Electrode activation treatment sequentially 0.1um, 0.3um Al 2 o 3 Make a slurry, dip 0.1um, 0.3umAl in turn with metallographic sandpaper 2 o 3 The slurry polishes the working electrode to the mirror surface in one direction, which takes about 5-6 minutes. After polishing, the surface dirt is washed away, and then moved into the ultrasonic water bath for repeated cleaning, each time for 2-3 minutes, and finally with a volume ratio of 1:1 ethanol, 1:1 HNO 3 Ultrasonic cleaning with distilled water for 2-3 minutes, after which the reference electrode is saturated with calomel electrode, the coun...

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Abstract

The invention relates to a testing method of an anaerobic digestion system, in particular to a testing method for testing anaerobic digestion on the basis of an electrochemical technology. The methodincludes cultivation of anaerobic digestion bacteria, electrode activation treatment, anaerobic digestion testing and other related procedures. The method has the advantages that the testing time is short, detection data is precise and effective, analysis of an aerobic digestion process is better facilitated, defects in testing of anaerobic digestion indexes in the prior art are effectively overcome, and meanwhile, more direct indexes for evaluating the anaerobic digestion performance are also obtained.

Description

technical field [0001] The invention relates to a test method for anaerobic digestion system, in particular to a test method for detecting anaerobic digestion based on electrochemical technology. Background technique [0002] At present, the use of anaerobic digestion technology for solid waste treatment in my country has been widely used, such as the treatment of crop straw and farm feces, which can not only reduce the output of waste, but also generate clean energy, but the anaerobic digestion process is complicated. Affected by many factors, such as temperature, pH, substrate components and toxic substances, resulting in low gas production rate of anaerobic digestion, so that resources can not be used effectively. Most of the analytical studies on anaerobic digestion gas production in the prior art explore the anaerobic digestion process through factors such as COD, volatile fatty acids (VFAs), and methane gas production, or explore the anaerobic digestion system through t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/32G01N27/30
CPCG01N27/308G01N27/32
Inventor 宫磊宗慧捷周骏杨晓琪
Owner QINGDAO UNIV OF SCI & TECH
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