Composting treatment method of landscaping waste

A treatment method and landscaping technology are applied in the field of composting treatment of landscaping waste, which can solve the problems of long composting time, short decomposing time, poor decomposing effect, etc., and achieve the effect of small usage amount and short decomposing time.

Inactive Publication Date: 2021-12-21
WEIFANG LYUDA LANDSCAPE ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In landscaping waste, there are many components such as cellulose and lignin that are not easy to degrade. These components need a lot of time to decompose, resulting in long composting time and low efficiency in processing landscaping waste.
[0006] CN102295478A discloses a method of using a chemical decomposing agent to accelerate the composting of garden waste. By adding sodium lignosulfonate or sodium hydroxide and cooperating with EM bacteria or lignin-degrading bacteria, the composting efficiency is improved and the decomposing time is shortened. However, the bacteria The amount of bacterial agent used is large, and 10kg of bacterial agent is required for every 1000kg of waste, and the cost is high
[0007] CN111406462A discloses a method for improving soil with garden organic mulches. Composting and decomposing the mixture of landscaping waste, straw, dead branches and leaves, and furfural slag is carried out by adding a decomposed treatment solution containing microorganisms. The time is also short, but after the composting is completed, the organic matter content is low, the decomposing degree T value is high, and the decomposing effect is poor.
[0009] (1) The compost has a high degree of maturity and a short maturity time, and the use of bacterial agents is large;
[0010] (2) The treatment method with less amount of bacterial agent and short decomposing time will result in lower organic matter content after composting, higher decomposing T value and poor decomposing effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] (1) Collect and crush

[0051] Collect landscaping waste, remove stones, plastics and other non-plant components, mildew and pest-infested waste need to be sterilized and then collected;

[0052] After collecting the landscaping waste, control the water content of the waste to 50% by mixing dry and wet waste, drying in the sun, spraying water and moisturizing, etc., put the waste into the grinder, and then put the quicklime into the grinder for grinding and crushing , crushed until the particle size of more than 90% of the mass of waste is less than 2mm, and the particle size of more than 100% of the mass of waste is less than 3mm;

[0053] The fineness of the quicklime is 1000 mesh, and the specific surface area is 19m 2 / g;

[0054]The mass ratio of quicklime to landscaping waste is 1:100.

[0055] (2) Adjust the carbon-nitrogen ratio

[0056] Disperse chitosan in water, then add acetic acid to obtain a dispersion, raise the temperature of the dispersion to 95°C a...

Embodiment 2

[0088] (1) Collect and crush

[0089] Collect landscaping waste, remove stones, plastics and other non-plant components, mildew and pest-infested waste need to be sterilized and then collected;

[0090] After collecting the landscaping waste, control the water content of the waste to 45% by mixing dry and wet waste, drying in the sun, spraying water and moisturizing, etc., put the waste into the grinder, and then put the quicklime into the grinder for grinding and crushing , crushed until the particle size of more than 85% of the mass of waste is less than 2mm, and the particle size of more than 95% of the mass of waste is less than 3mm;

[0091] The fineness of the quicklime is 800 mesh, and the specific surface area is 17m 2 / g;

[0092] The mass ratio of quicklime to landscaping waste is 1:95.

[0093] (2) Adjust the carbon-nitrogen ratio

[0094] Disperse chitosan in water, then add acetic acid to obtain a dispersion, raise the temperature of the dispersion to 92°C and...

Embodiment 3

[0126] (1) Collect and crush

[0127] Collect landscaping waste, remove stones, plastics and other non-plant components, mildew and pest-infested waste need to be sterilized and then collected;

[0128] The collected landscaping waste is mixed with dry and wet waste, dried in the sun, sprayed with water to keep the water content of the waste at 55%, and the waste is put into the grinding and pulverizing machine, and then quicklime is put into the pulverizing machine for grinding and pulverizing , crushed until the particle size of more than 93% of the mass of waste is less than 2mm, and the particle size of more than 100% of the mass of waste is less than 3mm;

[0129] The fineness of the quicklime is 1200 mesh, and the specific surface area is 20m 2 / g;

[0130] The mass ratio of quicklime to landscaping waste is 1:105.

[0131] (2) Adjust the carbon-nitrogen ratio

[0132] Disperse chitosan in water, then add acetic acid to obtain a dispersion liquid, raise the temperatu...

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Abstract

The invention provides a composting treatment method of landscaping waste. The treatment method comprises the following steps: collecting and crushing, adjusting the carbon nitrogen ratio, adding modified ligninase, inoculating and composting, and turning. According to the composting treatment method disclosed by the invention, the usage amount of the fungicide is small, and 4.0-4.2 kg of fungicide is needed for every 1000 kg of composting fertilizer; the decomposition time is short, and decomposition can be completed within 19-20 days; after decomposition, the organic matter content is high, the organic matter content is 40-42%, and the total nutrient content is 3.5-3.7%; the decomposition effect is good, the decomposition degree T value after decomposition is low, and the T value is 0.44-0.46.

Description

technical field [0001] The invention relates to a method for composting landscaping waste, which belongs to the technical field of biological composting. Background technique [0002] Landscaping waste refers to arbor and shrub trimmings (thinning), lawn trimmings, fallen leaves, branches, discarded grass and flowers in gardens and flower beds, and weeds, etc. Material. [0003] Excessive landscaping waste will prevent oxygen from entering the poorly drained or compacted soil, thereby damaging the roots of the plants. In addition, after irrigation or rainfall, the vertical leakage of water in the tree pit is easily blocked due to the cover of litter and leaves. The accumulation of water in the pit may cause the tree to rot and die. High-density litter mulch may also cause water saturation or desaturation of the soil surface, resulting in soil hypoxia or drought stress. [0004] In recent years, landscaping waste has been increasing, and the processing work has become incr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/20C05G3/00
CPCC05C9/00C05F11/00C05F17/20C05G3/00C05D3/02C05F7/00Y02W30/40
Inventor 赵群苗波涛辛艳
Owner WEIFANG LYUDA LANDSCAPE ENG
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