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Organic soil conditioner prepared with city sludge and its usage

A technology for organic soil and urban sludge, applied in organic fertilizers, soil conditioning materials, sewage/sludge fertilizers, etc., can solve problems such as harm to human health, stunted seed growth, and the formation of pests and diseases, and achieves less nutrient loss, improved environmental protection. The effect of crop product quality and crop yield improvement

Inactive Publication Date: 2007-11-07
刘奋安
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the water content of urban dewatered sludge is 70-83% when it leaves the factory, it is in the form of cement and is not easy to disperse. Because of its physical characteristics: after drying, it has high hardness and is not easy to break, so it is difficult to be directly used in farmland. At the same time, it is not Strictly treated sludge contains pathogenic microorganisms and parasite eggs, which will endanger human health and cause secondary pollution, and in the process of natural decomposition and fermentation in farmland, it will also produce stunted seeds, rotten roots, and the formation of diseases and pests And other issues

Method used

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  • Organic soil conditioner prepared with city sludge and its usage

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Effect test

Embodiment 1

[0034] (1) Mix 600kg of dewatered sludge with a moisture content of 75% and 90kg of dried straw (crushed below 5mm) with a moisture content of 10% in a volume ratio of 1:3 to make it uniformly mixed into a mixture with a moisture content of 55%. .

[0035] (2) The above-mentioned mixed materials and inorganic auxiliary materials: 50kg of alkali slag powder (over 100 mesh), 20kg of zeolite powder (over 100 mesh); fertilizer balance agent: 10kg of monosodium glutamate waste residue; 5kg of enzyme bacteria quick rot agent and mix evenly. The water content is 52%, the C / N is 25:1, the organic matter content is 32%, and the pH value is about 7.5.

[0036] (3) Stack the above-mentioned compost materials, the height of the stack is 1.5m, and the width is 3.0m. The first fermentation time is 7 days. .

[0037] (4) Transfer the material after the first fermentation into the storage bin of the heated kang system, add 10kg of VT-1000 bacterial agent to carry out the second fermentation...

Embodiment 2

[0040] (1) Mix 680kg of dewatered sludge with a moisture content of 70% and 120kg of dried rapeseed cake (crushed below 5mm) with a moisture content of 14% in a volume ratio of 1:3 to make it uniformly mixed to a moisture content of 52% mixture.

[0041] (2) The above-mentioned mixed materials and inorganic auxiliary materials: 90kg of fly ash (over 100 mesh), 40kg of bentonite powder (over 100 mesh); fertilizer balance agent: 10kg of alcohol waste residue; 5kg of enzyme bacteria quick rot agent and mix evenly. The water content is 52%, the C / N ratio is 28:1, the organic matter content is 33%, and the pH value is about 8.0.

[0042] (3) Stack the above-mentioned compost materials, the height of the stack is 1.5m, and the width is 3.0m. The first fermentation time is 7 days, and the temperature rises to 55-58°C for the first time, and then every 2 days.

[0043] (4) Transfer the material after the first fermentation into the storage bin of the heated kang system, add 10kg of V...

Embodiment 3

[0046](1) Mix 650kg of dewatered sludge with a moisture content of 80% and 110kg of dried bean cakes with a moisture content of 11% (crushed below 5mm) in a volume ratio of 1:3, making them evenly mixed into a mixture with a moisture content of 57% .

[0047] (2) The above-mentioned mixed materials and inorganic auxiliary materials: 70kg of lime powder (over 100 mesh), 30kg of zeolite powder (over 100 mesh); fertilizer balance agent: 20kg of sugar refining waste residue; 5kg of enzyme bacteria quick rot agent and mix evenly. The water content is 54%, the C / N ratio is 24:1, the organic matter content is 36%, and the pH value is about 8.0.

[0048] (3) Stack the above-mentioned compost materials, the height of the stack is 1.5m, and the width is 3.0m. The first fermentation time is 7 days, and the temperature rises to 55-58°C for the first time, and then every 2 days.

[0049] (4) Transfer the material after the first fermentation into the storage bin of the heated kang system,...

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Abstract

The present invention relates to one kind of organic soil conditioner prepared with city sludge and its production process. The material for the organic soil conditioner consists of dewatered sludge from city domestic sewage 53-72 wt%, organic agricultural waste 4-18 wt%, inorganic supplementary material 2-15 wt%, fertilizer balancing agent 1-5 wt%, and composite microbes 0.5-2 wt%. The production process of the organic soil conditioner includes the following steps: 1. fermenting the dewatered sludge from city domestic sewage, the organic agricultural waste and the inorganic supplementary material with saccharomycetes; 2. inoculating the composite microbes to the first fermented product for secondary decaying; and 3. sieving and packing to produce the organic soil conditioner. The organic soil conditioner has high nutritious component content, and can improve physical and chemical structure of soil, improve agricultural product quality and raise soil fertility.

Description

technical field [0001] The invention relates to a method for preparing an organic soil improver by using urban sludge, and relates to an organic soil improver and a preparation method thereof. Background technique [0002] With the rapid development of all aspects of the city, the continuous expansion of the development and utilization of natural resources by human beings, the wealth created has continuously improved the living standards of human beings. At the same time, the negative effects produced are: a large amount of waste water, waste gas, waste residue, human garbage, and domestic sewage seriously pollute the environment, and have brought disasters and crises to human beings. After the reform and opening up, with the acceleration of urban construction With the rapid development of urban domestic sewage discharge, how to deal with the sludge from urban sewage treatment has become an urgent problem to be solved. [0003] For a long time, the remaining sludge after ur...

Claims

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Application Information

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IPC IPC(8): C05F11/08C05F7/00C05F5/00C09K17/00
CPCY02A40/20
Inventor 刘奋安黄庆
Owner 刘奋安
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