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Earthworm compost treatment method for organic sludge

A technology of organic sludge and treatment method, which is applied in the fields of bio-organic part treatment, liquid/slurry treatment, invertebrate treatment, etc. It can solve the problem of high mortality of earthworms, achieve the effect of reducing mercury concentration and realizing waste recycling

Pending Publication Date: 2022-08-02
安徽荣察里生物科技有限公司
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Problems solved by technology

[0005] Aiming at the problem that earthworms are directly introduced into organic sludge in the vermicomposting process, the mortality rate of earthworms is relatively high, the present invention proposes a vermicomposting treatment method for organic sludge

Method used

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  • Earthworm compost treatment method for organic sludge
  • Earthworm compost treatment method for organic sludge

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Embodiment 1

[0020] A vermicomposting method for organic sludge, such as figure 1 shown, including the following steps:

[0021] 1. Earthworms are cultivated for more than 30 days in soil with a temperature of 20-25°C and a moisture content of 80-85%. The soil temperature is controlled at 20-25°C and the moisture content is controlled at 80-85%. Climb out to adapt to the environment;

[0022] 2. The organic sludge is ventilated for 20-30 days in a way of turning over the heap, and the ventilation ratio is 0.2-0.3vvm, preferably 0.25vvm, to reduce the organic gas produced by sludge fermentation;

[0023] 3. Mix the culture soil (the ratio of carbon to nitrogen is greater than 10) and the organic sludge according to the weight ratio of 1~3:3~1 to form a mixed culture soil, and adjust the water content of the mixed culture soil to 80~85%;

[0024] 4. Introduce earthworms into the mixed culture soil, the weight ratio of the introduced amount of earthworms to the mixed culture soil is 1000:25...

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Abstract

The invention discloses an earthworm composting treatment method for organic sludge. The method comprises the following steps: introducing air to the organic sludge in a turning manner for 20-30 days; the culture soil and organic sludge are mixed according to a certain weight ratio to form mixed culture soil, and the water content of the mixed culture soil is adjusted to 80-85%; earthworms are introduced into the mixed culture soil, the weight ratio of the introduced earthworms to the mixed culture soil is 1000: 25, and the temperature of mixed culture soil sludge is controlled to be 20-25 DEG C; the soil is loosened once every several days, the moisture content of the mixed culture soil is controlled to be 70-80%, and the temperature of the mixed culture soil is maintained to be 20-25 DEG C; and after the earthworm composting treatment of the batch of mixed culture soil is finished, taking out the earthworms for the composting treatment of the next batch of earthworms. According to the invention, the organic sludge can be converted from an organic state to an organic fertilizer standard, waste recycling is realized, and effective growth of earthworms can be maintained at the same time.

Description

technical field [0001] The invention relates to the technical field of organic sludge treatment, in particular to a vermicompost treatment method for organic sludge. Background technique [0002] The characteristics of sludge vary according to the type of paper produced, and it is mainly composed of fibers, organic matter, inorganic salts and water. Fiber comes from waste and loss from papermaking system, organic matter comes from waste biological sludge and organic chemical raw materials, and inorganic salts come from inorganic components, inorganic chemical raw materials (calcium carbonate coating) and chemicals (paper glue) in waste paper. aluminum sulfate, etc.). The proportion of fibers, organic matter and inorganic components in sludge is directly related to the degree of reuse. High inorganic components are suitable for cement raw materials, while organic components (referred to as organic sludge) are mainly discarded. [0003] Common organic sludge disposal, treatm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05F17/05C05F17/40A01K67/033
CPCC05G3/00C05F7/00C05F17/40C05F17/05A01K67/0332Y02W30/40
Inventor 朱锋仁万腾州廖君维方立异
Owner 安徽荣察里生物科技有限公司
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