Method of preparing organic nutritional soil from municipal sludge

A technology of organic nutrition and municipal sludge, applied in the field of soil, can solve the problems of affecting the yield and quality of green plants, easy leaching and volatilization of nutrients, low plant utilization rate, etc., and achieve good ventilation and drainage effects and rich humus in nutrient soil , the effect of strong reproductive ability

Inactive Publication Date: 2019-03-29
FLOWER KING ECO ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Urban landscaping is an important part of modern urban construction. At present, more and more urban residents in our country live in high-rise buildings, and the demand for indoor greening plants is increasing. Fertilizer is the source of green plant nutrients. Whether it is reasonable or not directly affects the yield and quality of green plants, so this puts forward higher requirements for the sowing substrate of green plants; traditional nutrient soil generally adds traditional elemental fertilizers, compound fertilizers, etc. to field soil, Nutrients are released quickly and are difficult to be comprehensively utilized by plants. Most of the nutrients in fertilizers are easily leached and volatilized, resulting in low plant utilization; and in recent years, with the development of cities and the increase of population, the urban sewage sludge The amount of discharge is increasing, and the utilization of municipal sewage sludge has become very necessary and urgent, and the rich organic matter and nutrients in sewage sludge have become the necessary conditions for it to be used by plants

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  • Method of preparing organic nutritional soil from municipal sludge
  • Method of preparing organic nutritional soil from municipal sludge
  • Method of preparing organic nutritional soil from municipal sludge

Examples

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Effect test

Embodiment 1

[0021] A method for preparing organic nutrient soil from municipal sludge, the method is carried out according to the following steps:

[0022] Step 1: After the municipal sludge is dehydrated, the water content is controlled to 71%. After being stirred evenly by the mixer, it is introduced into the fermentation tank, and 0.7% of the weight of the dewatered sludge is added to the fermentation tank. The auxiliary bacterial agent is added, and the pH is adjusted after stirring. It is 5.5, obtains fermented mixture after carrying out fast aerobic fermentation;

[0023] Step 2: Naturally cool down the sludge mixture after fermentation, introduce the sludge mixture into the decomposition tank, and put the Chizi Eisen earthworms in at a density of 1.5kg / m 3 , the temperature in the decomposition tank is controlled at 25°C, the humidity control range is 62%, and the decomposition cycle is 15 days; the rapid fermentation product of urban waste is swallowed by the swallowing and digest...

Embodiment 2

[0034] A method for preparing organic nutrient soil from municipal sludge, the method is carried out according to the following steps:

[0035] Step 1: After the municipal sludge is dehydrated, the water content is controlled to 68%. After being stirred evenly by a mixer, it is introduced into the fermentation tank, and 0.75% of the weight of the dewatered sludge is added to the fermentation tank. The auxiliary bacterial agent is added, and the pH is adjusted after stirring. It is 6, after carrying out rapid aerobic fermentation, obtain the fermented mixture;

[0036] Step 2: Naturally cool down the sludge mixture after fermentation, introduce the sludge mixture into the decomposition tank, and put the Chizi Eisen earthworms in at a density of 1.5kg / m 3 , the temperature in the decomposition tank is controlled at 30°C, the humidity control range is 68%, and the decomposition cycle is 15 days; the rapid fermentation products of urban waste are swallowed by the swallowing and di...

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Abstract

The invention provides a method of preparing organic nutritional soil from municipal sludge. The method comprises following steps: step one, dehydrating municipal sludge, evenly stirring, and introducing the municipal sludge into a fermenting tank; step two, introducing mixed sludge into a decomposition tank, and adding eisenia foetida; step three, separating earthworms from the decomposed materials; step four, adding urea, diammonium phosphate, manganese sulfate, cerium nitrate, potassium humate, and a granulation aid into the decomposed materials obtained in the step three to obtain a mixedmaterial, and carrying out granulation; step five, preparing a mixed solution from sodium carboxymethyl cellulose, ammonium persulfate, and an ethanol solution of epoxy chloropropane; step six, wetting the basic fertilizer particles by the mixed solution, and storing the particles for 1 to 2 hours at a temperature of 80 to 88 DEG C to obtain organic nutritional soil particles; and step seven, filling the organic nutritional soil particles into bags for later use. The fermented organic fertilizers, inorganic fertilizers, and humus are compounded to prepare the organic nutritional soil, which can supply comprehensive nutritional elements for the growth of plants and is capable of promoting the growth of young plants.

Description

technical field [0001] The invention relates to the technical field of soil, and more specifically relates to a method for preparing organic nutrient soil from municipal sludge. Background technique [0002] Urban landscaping is an important part of modern urban construction. At present, more and more urban residents in our country live in high-rise buildings, and the demand for indoor greening plants is increasing. Fertilizer is the source of green plant nutrients. Whether it is reasonable or not directly affects the yield and quality of green plants, so this puts forward higher requirements for the sowing substrate of green plants; traditional nutrient soil generally adds traditional elemental fertilizers, compound fertilizers, etc. to field soil, Nutrients are released quickly and are difficult to be comprehensively utilized by plants. Most of the nutrients in fertilizers are easily leached and volatilized, resulting in low plant utilization; and in recent years, with the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G24/20A01G24/30A01G24/10C05G3/00C05G3/04C05G3/08C05G3/80C05G3/90
CPCA01G24/10A01G24/20A01G24/30C05B7/00C05G3/00C05G3/80C05G3/90C05G5/37C05C3/00C05C5/00C05C9/00C05D9/02C05F3/00C05F7/00C05F11/00C05F11/02C05F11/08
Inventor 肖国强林晓珺胡晓轶尹小琴王辉殷潇锡陈玲
Owner FLOWER KING ECO ENG CO LTD
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