Method for preparing nutrient soil by taking sludge as raw material

A technology of nutrient soil and sludge, which is applied in the field of preparing nutrient soil with sludge as raw material, can solve the problems of many processes, incomplete fermentation reaction, and limited use, and achieve the effects of reducing processes, achieving heat preservation effects, and saving costs

A technology of nutrient soil and sludge, which is applied in the field of preparing nutrient soil with sludge as raw material, can solve the problems of many processes, incomplete fermentation reaction, and limited use, and achieve the effects of reducing processes, achieving heat preservation effects, and saving costs

CN108675853AInactive Publication Date: 2018-10-19JIANGSU HENGFENG TECH CO LTD
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  • Method for preparing nutrient soil by taking sludge as raw material

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Embodiment Construction

[0029] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0030] like figure 1 Shown, a kind of method using sludge as raw material to prepare nutritious soil is characterized in that, comprises the following steps:

[0031] (1) Sludge pretreatment: Drain the sewage into the sewage regulating tank, first close the inflow valve for 1~2 minutes and then close the outflow valve, so that the water in the upper layer of the sewage can flow away as much as possible, and the sludge in the lower layer should be kept as much as possible to further control the water content rate, and add a certain proportion of straw and sawdust in the sewage adjustment tank to adjust the water and carbon-nitrogen ratio in the sewage, after f...

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Abstract

The invention relates to a method for preparing nutrient soil by taking sludge as a raw material. The method is characterized by comprising the following steps: (1) performing sludge pretreatment; (2)performing primary fermentation; (3) performing secondary fermentation; (4) sludge after-treatment; (5) proportioning nutrient soil; (6) obtaining the finished product. Due to the use of an ER BIO compound microorganism bacterium agent, fermentation is promoted, odor in the sludge is removed, oxygen supply is ensured, the yield is high, and the quality is excellent.

Description

technical field [0001] The invention relates to a method for preparing nutrient soil, in particular to a method for preparing nutrient soil by using sludge as a raw material. Background technique [0002] In recent years, with the deepening of the sustainable development strategy, people have paid more and more attention to the transformation and utilization of sludge. Practical methods such as incineration, carbonization, composting, and building materials have been adopted; at the same time, the existing soil resources in our country are getting worse due to environmental pollution, while the garden market and flower market are becoming increasingly hot, so the landscaping soil with better soil quality , The demand for soil for flower cultivation and soil for agricultural irrigation is becoming stronger and stronger. [0003] In the prior art, the sludge treatment methods cannot achieve a comprehensive balance in terms of resource utilization, environmental protection, co...

Claims

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Application Information

Patent Timeline
19 Oct 2018
Publication
CN108675853A
IPC
C05G3/00; C05F7/00; C05F17/00; A01G24/10; A01G24/12; A01G24/25
CPC
A01G24/10; A01G24/12; A01G24/25; C05B1/02; C05D1/00; C05F7/00; C05F17/50; C05G3/00
Inventors
苏进和; 孟宪刚