Ultrahigh-temperature composting method for treating vegetable waste

A vegetable waste and treatment method technology, applied in the field of ultra-high temperature composting of vegetable waste, can solve the problems of easy safety risks in utilization and difficult recycling of vegetable waste, so as to improve the degree of harmlessness, reduce investment, The effect of improving the soil

Inactive Publication Date: 2017-11-24
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, in view of the large amount of waste generated in vegetable planting areas and the possibility of carrying a variety of pathogenic bacteria, the recycling of vegetable

Method used

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  • Ultrahigh-temperature composting method for treating vegetable waste

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Effect test

Embodiment 1

[0038] Embodiment 1, the ultra-high temperature composting treatment method of cucumber seedlings

[0039] Mix cucumber seedlings, corn stalks, wheat straw and chicken manure according to the dry weight ratio of 1:0.45:0.55:0.3, and add the uniformly mixed materials (with a particle size of 2-5cm) into the composting reactor. The carbon-to-nitrogen ratio is about 25, and the moisture content is about 60%. Under the room temperature of 15-20°C, forced ventilation is carried out for 40 days (the ventilation rate is 0.2L·min -1 ·kgDM -1 ) under the composting process, the composting operation was carried out on the 3rd, 7th, 12th, 17th, 22nd, 27th, 32nd, 37th day and the moisture content was adjusted to about 60% at the same time.

[0040] On the first day of the composting reaction, the temperature rose rapidly to above 70°C, and the high temperature above 70°C lasted for 1.4 days. Since the 12th day, the germination rate index (GI value) has been higher than 80%, reaching the...

Embodiment 2

[0045] Embodiment 2, the processing method of the cucumber seedling ultra-high temperature composting that adds microbial bacterial agent

[0046] After mixing tomato seedlings, corn stalks, wheat straw and chicken manure according to the dry weight ratio of 1:0.43:0.57:0.3, add them to the mixed material (the particle size of the mixed material is 3-5cm) according to the weight ratio of 3‰ The compost inoculant (VT1000 bacterial agent) is added by dissolving it with molasses and spraying it evenly on the surface of the mixture. The obtained mixture is 0.35kg·L according to the wet bulk density -1 Add in the composting reactor, the carbon-nitrogen ratio of mixture is about 25, moisture content is about 60%, carry out a period of 40 days of forced ventilation under the room temperature condition of 15-20 ℃ (ventilation rate is 0.25L min -1 ·kgDM -1 ) under the composting process, the composting operation was carried out on the 3rd, 7th, 12th, 17th, 22nd, 27th, 32nd, 37th day ...

Embodiment 3

[0048] Embodiment 3, using chemical additives to control the method of ultra-high temperature composting of cucumber seedlings for nitrogen loss

[0049] After mixing chili seedlings, corn stalks, wheat stalks and chicken manure according to the dry weight ratio of 1:0.40:0.60:0.3, the content of easily biodegradable organic matter in the mixture is 45%. Add the compost inoculant (VT1000 bacterial agent) to the mixed material (the mixed material particle size is 2-5cm) according to the weight ratio of 3‰, and the addition method is to dissolve it with molasses and evenly spray it on the surface of the mixture. Add 5% magnesium phosphate salt additive (K 2 HPO 4 and MgO according to the molar ratio of 1:2 mixed into the mixed material), the resulting mixture according to the wet bulk density of 0.35kg L -1 Add in the composting reactor, the carbon-nitrogen ratio of mixture is about 25, moisture content is about 60%, carry out a period of 40 days of forced ventilation (ventila...

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Abstract

The invention discloses an ultrahigh-temperature composting method for treating vegetable waste. The method comprises the steps of mixing well vegetable waste and agricultural waste, and subjecting the mixture to high-temperature aerobic composting treatment with forced ventilation so that the vegetable waste is harmlessly treated. The invention is intended to solve the problems that a vegetable planting zone produces a large amount of waste that may carry various pathogens, the vegetable waste containing pathogens is difficult to recycle, and safety risk easily occurs in the subsequent utilization of the vegetable waste. By regulating initial materials and increasing highest composting temperature to higher than 70 DEG C without affecting thorough decomposition of compost, the vegetable waste can be converted into compost products safely. By using the compost products of the vegetable waste, soil can be improved, nutrients can be provided, and occurrence of plant disease and pest damage can be partly decreased; therefore, the input of pesticides and other agricultural chemicals is reduced, waste resources are recycled, and clean production of vegetable fields is achieved. The method of the invention is significant both economically and environmentally.

Description

technical field [0001] The invention belongs to the field of composting, and in particular relates to an ultra-high temperature composting method for processing vegetable waste. Background technique [0002] Vegetable waste is produced in a large amount and is rich in nutrients necessary for various plants. Proper treatment can be used as a good nutrient resource. However, most vegetable waste has too high moisture content, low carbon-nitrogen ratio, poor structure, and is easy to rot and deteriorate. , it is difficult to directly utilize resources. At the same time, in the process of growing and harvesting vegetables, the plants will inevitably be indirectly or directly infected by soil-borne and air-borne pathogens, so many vegetable wastes may carry latent pathogens. Splashing and so on to spread the disease. At present, due to the lack of recycling technology suitable for vegetable waste, a large amount of vegetable waste is abandoned, which wastes resources and seriou...

Claims

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Application Information

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IPC IPC(8): C05F15/00C05G1/00
CPCC05B7/00C05F3/00C05F11/00C05F11/08C05F17/70C05F17/80C05D5/00
Inventor 李彦明常瑞雪陈清郭秋月王倩
Owner CHINA AGRI UNIV
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