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Method for producing organic fertilizer through dynamic fermentation of sludge

A dynamic fermentation and organic fertilizer technology, which is applied in the preparation of organic fertilizers, organic fertilizers, organic fertilizer equipment, etc., can solve the problems of low efficiency and poor fermentation effect, and achieve improved soil environment, enhanced abundance, and good fermentation effect Effect

Inactive Publication Date: 2021-02-05
内蒙古东源环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a method for producing organic fertilizer through dynamic fermentation of sludge to solve the problems of poor fermentation effect and low efficiency in the background technology

Method used

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  • Method for producing organic fertilizer through dynamic fermentation of sludge
  • Method for producing organic fertilizer through dynamic fermentation of sludge
  • Method for producing organic fertilizer through dynamic fermentation of sludge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The present embodiment provides a method for producing organic fertilizer by dynamic fermentation of sludge, said method comprising the steps of:

[0037] Dewater the sludge to a water content of 60%, a pH of 8, and organic matter > 30%.

[0038] Mix 1 part of rice husk, 1 part of corn, 2 parts of mushroom residue, 1 part of peanut shell powder, 1 part of furfural residue, 5 parts of Jerusalem artichoke straw, 1 part of Jerusalem artichoke flower powder, and 0.5 part of grape seed powder. <10%, particle size between 5mm-20mm.

[0039] Mix the dehydrated sludge and auxiliary materials evenly to obtain a mixture. The moisture content of the mixture is 55%, the C / N ratio is 20:1, and the amount of auxiliary materials added is 15% of the weight of the dehydrated sludge.

[0040] The mixture and the air are sent into the fermentation drum 1 at the same time, and the fermentation drum 1 is a cylindrical structure placed horizontally, and the internal spiral stirring blade 4 ...

Embodiment 2

[0048] The present embodiment provides a method for producing organic fertilizer by dynamic fermentation of sludge, said method comprising the steps of:

[0049] Dewater the sludge to a water content of 85%, a pH of 6, and organic matter > 30%.

[0050] Mix 3 parts of rice husk, 2 parts of corn, 4 parts of mushroom residue, 3 parts of peanut shell powder, 3 parts of furfural residue, 8 parts of Jerusalem artichoke straw, 2 parts of Jerusalem artichoke flower powder, and 1.5 parts of grape seed powder. <10%, the particle size of the mixture is between 5mm-20mm.

[0051] Mix the dehydrated sludge and auxiliary materials evenly to obtain a mixture. The water content of the mixture is 60%, the C / N ratio is 30:1, and the amount of auxiliary materials added is 15% of the weight of the dehydrated sludge.

[0052] The mixture and the air are sent into the fermentation drum 1 at the same time, and the fermentation drum 1 is a cylindrical structure placed horizontally, and the internal...

Embodiment 3

[0059] The present embodiment provides a method for producing organic fertilizer by dynamic fermentation of sludge, said method comprising the steps of:

[0060] Dewater the sludge to a water content of 80%, a pH of 7, and organic matter > 30%.

[0061] Mix 2 parts of rice husk, 3 parts of wheat straw, 3 parts of mushroom residue, 2 parts of peanut shell powder, 2 parts of furfural residue, 6 parts of Jerusalem artichoke straw, 1 part of Jerusalem artichoke flower powder, and 1 part of grape seed powder to obtain auxiliary materials. Rate <10%, particle size between 5mm-20mm.

[0062] Mix the dehydrated sludge and auxiliary materials evenly to obtain a mixture. The water content of the mixture is 60%, the C / N ratio is 25:1, and the amount of auxiliary materials added is 15% of the weight of the dehydrated sludge.

[0063] The mixture and the air are sent into the fermentation drum 1 at the same time, and the fermentation drum 1 is a cylindrical structure placed horizontally, ...

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Abstract

The invention provides a method for producing an organic fertilizer by dynamic fermentation of sludge, the method comprises the following steps: uniformly mixing dewatered sludge and auxiliary materials, sending into a fermentation roller, carrying out high-temperature aerobic fermentation, stacking, and screening to obtain the organic fertilizer. In the high-temperature aerobic fermentation process, a dynamic fermentation treatment process is adopted, the mixture reciprocates and is mixed in the fermentation roller under the simultaneous action of the inner spiral stirring blade and the outerspiral stirring blade in the fermentation roller, and the mixture is further mixed uniformly under the rotary stirring action of the connecting rod, full-dynamic operation of the mixture is realized,the material mixing and turning effects are enhanced, and the mass transfer and reaction efficiency is improved so that the fermentation effect is improved, the fermentation process quickly enters ahigh-temperature period of 55-70 DEG C, and the fermentation time is shortened to 5-7 days.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to a method for producing organic fertilizer through dynamic fermentation of sludge. Background technique [0002] Municipal sludge is solid, semi-solid and liquid waste produced by urban purification and treatment of sewage. The amount of sludge produced in the process increases sharply. If the sludge is not properly treated, it will inevitably affect the effect of sewage treatment and cause potential pollution risks to the local ecological environment. At the same time, the relevant national regulations on sludge treatment and disposal are becoming increasingly strict, and regional economic development and environmental protection are increasingly required to solve the problems of high moisture content, microbial growth, poor properties, unfavorable transportation and storage, and dissatisfaction with landfill specifications in the existing sludge treatment system. There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F15/00C05F17/90C05F17/964C05F17/979C05F17/993C05F17/80C05F17/70
CPCC05F5/00C05F17/90C05F17/964C05F17/979C05F17/993C05F17/80C05F17/70C05F5/002C05F5/006C05F7/00C05F11/00Y02W30/40
Inventor 白文龙王瑞民于勇刘庆武园陈杰
Owner 内蒙古东源环保科技股份有限公司
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