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A method for improving urban soil aggregate structure with organic waste

A technology for organic waste and soil aggregates, which can be used in the field of city appearance and environmental protection, landscaping, urban ecological environment, and soil, and can solve problems such as difficulties, complicated transportation and processing processes, etc.

Active Publication Date: 2022-02-11
SHANGHAI ACADEMY OF LANDSCAPE ARCHITECTURE SCI & PLANNING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the transportation and handling process is complicated and difficult

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for improving urban soil aggregate structure by organic waste, comprising the steps of:

[0023] (1) Crush the organic waste into particles with a particle size of ≤1cm, and add Fusarium and Gibberella; the addition amount of the two is 5×10 2 ~5×10 3 cfu / kg organic waste, in which Fusarium (Fusarium) and Gibberella (Gibberella) are added at a ratio of 1:5, and granules with a particle size of 3-5 cm are formed after vibration screening, and the granules are shaken during the vibration process. After spraying urea-formaldehyde resin, compost and ferment at 28-30°C for 50 days to obtain organic waste compost products;

[0024] (2) The improved soil can be obtained by mixing the soil to be improved, organic waste compost products, desulfurized gypsum, and fly ash at a mass ratio of 85:10:0.1:4.

[0025] The organic waste includes 90% organic wet garbage and 10% litter; the organic wet garbage includes vegetable peels, fruit peels, and kitchen waste. Control th...

Embodiment 2

[0028] A method for improving urban soil aggregate structure by organic waste, comprising the steps of:

[0029] (1) Crush the organic waste into particles with a particle size of ≤1cm, and add Fusarium and Gibberella; the addition amount of the two is 5×10 2 ~5×10 3 cfu / kg organic waste, in which Fusarium (Fusarium) and Gibberella (Gibberella) are added at a ratio of 1:5, and granules with a particle size of 3-5 cm are formed after vibration screening, and the granules are shaken during the vibration process. After spraying urea-formaldehyde resin, compost and ferment at 28-30°C for 52 days to obtain organic waste compost products;

[0030] (2.) The improved soil can be obtained by mixing the soil to be improved, organic waste composting products, nano-hydroxyapatite, and fly ash at a mass ratio of 85:12:0.2:4.

[0031] The organic waste includes 90% organic wet garbage, 10% litter and sawdust; the organic wet garbage includes vegetable peels, fruit peels, and kitchen waste. ...

Embodiment 3

[0034] A method for improving urban soil aggregate structure by organic waste, comprising the steps of:

[0035] (1) Crush the organic waste into particles with a particle size of ≤1cm, and add Fusarium and Gibberella; the addition amount of the two is 5×10 2 ~5×10 3 cfu / kg organic waste, in which Fusarium (Fusarium) and Gibberella (Gibberella) are added at a ratio of 1:5, and granules with a particle size of 3-5 cm are formed after vibration screening, and the granules are shaken during the vibration process. After spraying urea-formaldehyde resin, compost and ferment at 28~30°C for 40 days to obtain organic waste compost products;

[0036] (2) Mix the soil to be improved, organic waste compost products, phosphogypsum, and fly ash in a mass ratio of 85:12:7:4 to obtain improved soil.

[0037] The organic waste includes 90% organic wet garbage and 10% litter; the organic wet garbage includes vegetable peels, fruit peels, and kitchen waste. Control the water content of organ...

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Abstract

The invention discloses a method for improving urban soil aggregate structure by organic waste. The method comprises mixing 80%-85% of soil to be improved, 10%-15% of organic waste composting products, 0.01%-0.2% of desulfurized gypsum and 1%-5% of fly ash. Among them, organic waste composting products are composed of 80%~90% organic wet waste (vegetable peel, fruit peel, etc.) and 10%~20% other organic waste (litter, sawdust, straw, rice husk, etc.) species) mixed and fully decomposed after 40-60 days of composting. The invention has simple process, convenient source of raw materials, and can turn waste into treasure, not only can find a new way for the treatment and disposal of urban organic wet garbage, reduce waste of resources and environmental pollution, but also can increase the aggregate structure in the soil, effectively Improve the quality of the soil. It has a positive effect on promoting urban energy conservation and emission reduction, improving the quality of urban soil ecological environment, and has good social, economic and ecological environmental benefits.

Description

technical field [0001] The invention relates to a method for improving urban soil aggregate structure by organic waste. Specifically, it is a method for improving the poor aggregate structure in urban soil by using urban organic waste composting products and desulfurized gypsum, and belongs to the fields of soil, city appearance environmental protection, landscaping and urban ecological environment. Background technique [0002] Background analysis of organic waste: Nowadays, urban waste is growing at a rate of 10% every year, and nearly 150 million tons of urban waste are generated every year, and the accumulated stockpile has reached 7 billion tons. Organic wet waste accounts for about 60% of domestic waste, and kitchen waste with vegetable peels and fruit peels as the main components occupies a relatively high proportion. These waste landfills occupy a large amount of land, and the calorific value of incineration is low, which is a waste of resources. Kitchen waste cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02C05G3/00C05G3/80C09K17/40C09K101/00
CPCA01B79/02C09K17/40C05B7/00C05D3/02C05G3/00C09K2101/00C05G3/80C05D9/00C05F5/002C05F11/00
Inventor 伍海兵梁晶张浪陈平张桂莲何小丽徐冰张青青朱清
Owner SHANGHAI ACADEMY OF LANDSCAPE ARCHITECTURE SCI & PLANNING
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