Municipal sewage sludge treatment method and its product
A technology for municipal domestic sludge and treatment methods, applied in the field of sludge treatment, can solve problems affecting the normal operation of landfills, and achieve the effect of resource utilization and high removal efficiency
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Embodiment 1
[0050] The municipal domestic sludge treated by Yiwu Water Treatment Center as shown in Table 1 was used.
[0051] A treatment method for municipal domestic sludge, carried out according to the following steps:
[0052] (1) Add microbial strains (Bivoform microbial strains in the United States, model: BZT (Waste Digester), the same below) and straw (to increase air permeability) to municipal domestic sludge for fermentation treatment, wherein: the microorganisms The amount of bacteria added is 25% of the weight of municipal domestic sludge, the amount of rice straw added is 5% of the weight of municipal domestic sludge, the fermentation treatment temperature is 20-30°C, and the fermentation treatment is 4 hours;
[0053] (2) Add Daping No. 1 earthworms to the municipal domestic sludge after fermentation treatment, wherein: the addition amount of Daping No. 1 earthworms is 1% of the weight of municipal domestic sludge, and the temperature during treatment is 25 °C and the humid...
Embodiment 2
[0057] The municipal domestic sludge treated by Yiwu Water Treatment Center as shown in Table 1 was used.
[0058] A treatment method for municipal domestic sludge, carried out according to the following steps:
[0059] (1) Add microbial strains and rice bran (increase air permeability) to municipal domestic sludge for fermentation treatment, wherein: the added amount of microbial strains is 20% of the weight of municipal domestic sludge, and the added amount of rice bran It is 1% of the weight of municipal domestic sludge, and it is covered with a film at the same time. The fermentation treatment temperature is 10-20 ° C, and the fermentation treatment is 8 hours;
[0060] (2) Add Daping No. 1 earthworms to the municipal domestic sludge after fermentation treatment, wherein: the addition amount of Daping No. 1 earthworms is 0.8% of the weight of municipal domestic sludge, and the temperature during treatment is 20 °C and the humidity is 65 %, the processing time is 4 months....
Embodiment 3
[0064]The municipal domestic sludge treated by Yiwu Water Treatment Center as shown in Table 1 was used.
[0065] A treatment method for municipal domestic sludge, carried out according to the following steps:
[0066] (1) Add microbial strains and corn stalks (increasing air permeability) to municipal domestic sludge for fermentation treatment, wherein: the added amount of microbial strains is 10% of the weight of municipal domestic sludge, and the added amount of corn stalks It is 3% of the weight of urban domestic sludge. At the same time, cover the sunshade net or straw and spray water twice in the morning and evening (spraying water is prohibited from 11:00 noon to 7:00 pm). The fermentation treatment temperature is 30-40 ° C, and the fermentation treatment is 3 hours;
[0067] (2) Add Daping No. 1 earthworms to the municipal domestic sludge after fermentation treatment, wherein: the addition amount of Daping No. 1 earthworms is 0.5% of the weight of municipal domestic sl...
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