Amendment and uses of the same in sludge composting
A conditioning agent and sludge technology, applied in the field of conditioning agents, can solve the problems of large dosage of conditioning agents, easy decomposition, low mass transfer efficiency, etc., to shorten the fermentation cycle, reduce fermentation energy consumption, and improve mass transfer efficiency. Effect
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[0009] Specific embodiment one: The conditioning agent of this embodiment is pumice with a particle size of 0.2-10 cm.
[0010] In this embodiment, the pumice stone is various existing pumice stones.
Example Embodiment
[0011] Specific implementation manner 2: The application of the conditioner of this embodiment in sludge composting is as follows: 1. Mix the sludge with the conditioner at a mass ratio of 1:0.3~4 to obtain a mixture; 2. Put the mixture into the fermentation equipment For fermentation, the stacking height of the mixture is 0.8~2.5m, and the ventilation rate is 0.05~2m 3 / min·m 3 , Adjust the ventilation rate to 0.05~8m when the temperature of the mixture is higher than 65℃ after fermentation 3 / min·m 3 , Maintain the temperature of the mixture at 50~65℃ for at least 5 days, of which at least 3 days at 55~65℃; 3. After 10~20 days of fermentation, the material will be discharged, and then the conditioning agent will be screened out to complete the conditioning agent. Application in sludge composting; in step one, the moisture content of the sludge is 65%-85%, and the organic matter content is 35%-80%.
[0012] In this embodiment, if static fermentation equipment is used, regular pil...
Example Embodiment
[0015] Specific embodiment three: This embodiment is different from the specific embodiment two in that the water content of the sludge in step one is 72% and the organic matter content is 50%. Other steps and parameters are the same as in the second embodiment.
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