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Domestic sludge treatment method

A technology for domestic sludge and treatment methods, applied in biological sludge treatment, sludge treatment, botanical equipment and methods, etc. Productivity efficiency, the effect of shortening the water evaporation time

Active Publication Date: 2021-01-05
FUZHOU ZUNLONG BIOLOGICAL CULTURE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the actual process of sludge treatment, the thickness of the sludge is about 15cm each time. Since the moisture content in the sludge is generally as high as 80%, when the thickness of the sludge spread is greater than 15cm, It is easy to cause earthworm anaerobic, that is, a large number of death due to lack of oxygen, and the

Method used

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  • Domestic sludge treatment method

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Embodiment

[0028] Spread 0.4 tons of sludge per square meter, add 4-5 kg ​​of earthworms, and 80-100 cuttings, king bamboo grass, sweet elephant grass, and giant fungus grass.

[0029] summer:

[0030] In the sludge treatment device, first spread a layer of sludge of 15cm to 25cm, then spread a layer of earthworms, and finally spread a layer of sludge until the total sludge thickness is 40cm; Plant the emperor bamboo grass by inserting, wait for 15 days after the planting is completed, and finally cut off the stems and leaves of the emperor bamboo grass above the soil and store them; then filter out the soil, earthworms, and roots in the soil for classified storage.

[0031] The soil after screening is used for seed germination, and the seed germination rate is 95%, which meets the requirements.

[0032] winter:

[0033] In the sludge treatment device, first spread a layer of sludge of 15cm to 25cm, then spread a layer of earthworms, and finally spread a layer of sludge until the total...

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Abstract

The invention provides a domestic sludge treatment method. Pennisetum hydridum, pennisetum purpureum or pennisetum giganteum is pruned and inserted into sludge, and oxygen is provided for earthworms by utilizing the roots of pennisetum hydridum, pennisetum purpureum or pennisetum giganteum, so that the thickness of the domestic sludge is increased to 40cm from 15cm, the survival of earthworms is ensured, and the production efficiency is improved. The stems and leaves of pennisetum hydridum, pennisetum purpureum or pennisetum giganteum are utilized to accelerate evaporation of water in the sludge, thereby further providing guarantee for survival of earthworms, shortening the water evaporation time and further improving the production efficiency. After the sludge is treated, stems and leavesat the upper parts of pennisetum hydridum, pennisetum purpureum or pennisetum giganteum soil are cut off and can be used as forage grass.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to a treatment method for domestic sludge. Background technique [0002] Sludge contains toxic and harmful substances such as pathogens, heavy metals and persistent organic compounds, which can easily cause secondary pollution to groundwater, soil, air and other environments, directly threatening environmental safety and public health. [0003] The technology of using earthworms to treat domestic sludge has been widely used. The existing method generally adopts: collecting domestic sludge, then throwing earthworms, and then waiting for 30 to 60 days for the earthworms to devour the sludge for metabolism, so as to achieve the purpose of sludge treatment, and the treated soil can be used as nutrient soil for Landscaping, flower planting and other fields. For example, the patent application number is 201210036053.X, and the authorized announcement number is CN102557370B, whi...

Claims

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Application Information

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IPC IPC(8): C02F11/02A01K67/033A01G22/00
CPCC02F11/02A01G22/00A01K67/0332Y02W10/20
Inventor 陈伟峰杨锋
Owner FUZHOU ZUNLONG BIOLOGICAL CULTURE TECH