Method for treating excrement through plasma electrolytic liquefaction

A method for treating excrement through plasma electrolytic liquefaction comprises the following steps: step 1, collecting the excrement, and dehydrating the excrement; step 2, adding polyhydric alcohol into the excrement dehydrated in the step 1, and stirring and dissolving to obtain an excrement and polyhydric alcohol mixed solution; step 3, adding the excrement polyol mixed solution obtained in the step 2 into a container with an electrode, electrifying the electrode by a power supply, and after electrifying treatment for 2-6 minutes, disconnecting the power supply to obtain a mixture of bio-oil and residues; and 4, air-cooling to room temperature, and filtering to obtain the bio-oil. According to the method, after the excrement is dehydrated and dissolved, the excrement polyhydric alcohol solution is electrified through the external electrode to generate plasma, organic matters in the excrement are degraded and liquefied into liquid bio-oil within extreme time, so that the time for degrading the excrement