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Method for improving sludge fertility

A sludge and fertility technology, applied in the direction of sewage/sludge fertilizer, botanical equipment and methods, organic fertilizer, etc., can solve the problems of high concentration of organic matter, insufficient sludge fertility, and poor application effect of sludge, so as to improve the utilization rate , the effect of improving fertility

Pending Publication Date: 2021-06-25
漳州台商投资区城发生态环境有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The sludge is rich in nutrients, but when the sludge is used to grow plants, the application effect of the sludge is not good, because the sludge contains a large amount of urea and organic substances that cannot be directly absorbed by plants, and the concentration of organic substances in the sludge is too high , leading to dehydration of plant cells
And then the inventor of the present application thinks that the nutrient substances that can be used for the direct absorption of plants in the sludge are too few, and the fertility of the sludge is insufficient.

Method used

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  • Method for improving sludge fertility

Examples

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Effect test

Embodiment 1

[0033] In the present embodiment 1, the parts by weight of silt are 100 parts; The parts by weight of vermiculite are 10 parts; The parts by weight of fly ash are 10 parts; The parts by weight of biochar are 10 parts; The parts by weight are 3 parts, and the parts by weight of nitrogenase in the biological enzyme preparation are 2 parts, the parts by weight of urease are 1 part; the parts by weight of dry rice straw are 30 parts, and the length of the dry rice straw is 5 ± 0.5 parts cm.

[0034] Present embodiment 1 comprises the following steps:

[0035] Step (1) 100 parts of silt and 10 parts of vermiculite are evenly stirred at a speed of 20 r / min in a mixer to obtain preliminary mud;

[0036] Step (2) After adding 10 parts of fly ash and 10 parts of biochar to the preliminary mud in step (1), stir at a speed of 25r / min for 5min to obtain the secondary mud;

[0037] Step (3) Add 2 parts of nitrogenase and 1 part of urease to the secondary mud in step (2), and stir it at a...

Embodiment 2

[0041] In the present embodiment 2, the parts by weight of sludge are 100 parts; the parts by weight of vermiculite are 30 parts; the parts by weight of fly ash are 15 parts; the parts by weight of biochar are 15 parts; The parts by weight are 5 parts, and the parts by weight of nitrogenase in the biological enzyme preparation are 2.5 parts by weight, and the parts by weight of urease are 2.5 parts by weight; the parts by weight of dry rice straw are 30 parts, and the length of dry rice straw is 10 ± 0.5 parts cm.

[0042] Present embodiment 2 comprises the following steps:

[0043] Step (1) 100 parts of silt and 30 parts of vermiculite are evenly stirred at a speed of 25 r / min in a mixer to obtain preliminary mud;

[0044] Step (2) After adding 15 parts of fly ash and 15 parts of biochar to the preliminary mud in step (1), stir at a speed of 30r / min for 15min to obtain the secondary mud;

[0045] Step (3) Add 2.5 parts of nitrogenase and 2.5 parts of urease to the secondary...

Embodiment 3

[0049] In present embodiment 3, the parts by weight of silt are 100 parts; The parts by weight of vermiculite are 20 parts; The parts by weight of fly ash are 12 parts; The parts by weight of biochar are 13 parts; The parts by weight are 4 parts, and the parts by weight of nitrogenase in the biological enzyme preparation are 2.3 parts by weight, and the parts by weight of urease are 1.7 parts by weight; the parts by weight of dry rice straw are 30 parts, and the length of dry rice straw is 7 ± 0.5 parts cm.

[0050] Present embodiment 3 comprises the following steps:

[0051] Step (1) 100 parts of silt and 20 parts of vermiculite are evenly stirred at a speed of 20 r / min in a mixer to obtain preliminary mud;

[0052] Step (2) After adding 12 parts of fly ash and 13 parts of biochar to the preliminary mud in step (1), stir at a speed of 25r / min for 7min to obtain the secondary mud;

[0053] Step (3) Add 2.3 parts of nitrogenase and 1.7 parts of urease to the secondary mud in ...

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Abstract

The invention relates to the technical field of environmental governance, and particularly discloses a method for improving sludge fertility. The method comprises the following steps that (1), sludge and vermiculite are uniformly stirred and mixed to obtain a primary pug; (2), fly ash and charcoal are added into the primary pug in the step (1), and stirring is carried out at the rotating speed of 25-30r / min for 5-10 minutes to obtain secondary pug; (3), a biological enzyme preparation is added into the secondary pug in the step (2), and stirring is carried out for 10-15 minutes at the rotating speed of 30-35 r / min to obtain third pug; (4), dry straw is added into the third pug in the step (3), and stirring is carried out at the rotating speed of 35-40r / min for 10-15 minutes to obtain fourth pug; and (5), the fourth pug is placed in the step (4) in a dark environment at 30-35 DEG C for 25-30 days to obtain the planting pug. The method for improving the sludge fertility has the advantage of improving the sludge fertility.

Description

technical field [0001] The application relates to the technical field of environmental treatment, more specifically, it relates to a method for improving the fertility of sludge. Background technique [0002] Silt is a kind of soft soil with a natural water content greater than the fluidity limit and a void ratio greater than 1.5. It is a modern sediment formed under the action of microorganisms in the environment with slow water flow in bays, lakes, swamps or river bends. The overall appearance is gray Black, rich in organic matter. The organic matter in the sludge refers to the sum of various animal and plant remains and microorganisms and the substances produced by their life activities in the sludge. It is one of the most active factors in the sludge, and the organic matter in the sludge mainly includes: 1. Freshness and insufficient decomposition 2. Humus. [0003] The sludge is rich in nutrients, but when the sludge is used to grow plants, the application effect of t...

Claims

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Application Information

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IPC IPC(8): A01G24/20A01G24/15A01G24/10A01G24/22C05G3/90C05F17/50C05F17/20
CPCA01G24/20A01G24/15A01G24/10A01G24/22C05D9/00C05F17/20C05F17/50C05G3/90C05F7/00C05F11/00C05F11/08Y02W30/40Y02P60/21Y02A40/22
Inventor 连伟炜
Owner 漳州台商投资区城发生态环境有限公司
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