Preparation method of residual-sludge-based particle electrode carrier

[0021] Embodiment 1: In this embodiment, a method for preparing a surplus sludge-based particle electrode carrier is specifically carried out in accordance with the following steps:

[0022] 1. Dry the remaining sludge after mechanical dehydration to dry sludge, then pulverize it, and sieve it through a sieve with an aperture of 100 mesh to obtain dry sludge powder;

[0023] 2. Mix the absolute dry sludge powder and montmorillonite obtained in step 1 evenly, then add water and stir to make raw meal balls, and then dry at room temperature;

[0024] 3. Put the raw meal balls treated in step 2 into a muffle furnace to preheat, then raise the temperature to the roasting temperature, roast, and then cool to obtain the remaining sludge-based particle electrode carrier.

[0025] Embodiment 2: This embodiment differs from Embodiment 1 in that: in step 1, the drying temperature is 105° C., and the drying time is 24 hours. Others are the same as in the first embodiment.

[0026] Specific embodiment 3: The difference between this embodiment and specific embodiment 1 or 2 is that in step 1, a pulverizer is used for pulverization, and the pulverization time is 1 min. Others are the same as in the first or second embodiment.