Vegetable residue, crop straw and livestock and poultry excrement combined composting process

A technology for crop stalks and vegetable residues, which is applied in the field of resource utilization of organic waste, and can solve problems such as waste of straw resources, unreasonable disposal, and environmental pollution

Active Publication Date: 2016-12-14
INST OF AGRI RESOURCES & ENVIRONMENT HEBEI ACADEMY OF AGRI & FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a combined composting process for vegetable residues, crop straws, and livestock and poultry manure to solve the problems of high moisture content and unreasonable disposal of vegetable straws in coastal areas, resulting in waste of straw resources and environmental pollution.

Method used

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  • Vegetable residue, crop straw and livestock and poultry excrement combined composting process
  • Vegetable residue, crop straw and livestock and poultry excrement combined composting process
  • Vegetable residue, crop straw and livestock and poultry excrement combined composting process

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Embodiment 1 Tomato stalk, corn stalk and livestock and poultry manure combined composting process

[0031] The test uses tomato stalks, corn stalks and livestock and poultry manure for joint composting. From July to September 2013, it was carried out in the pilot composting pool of Gaocheng Experimental Demonstration Base. The basic properties of each material are listed in Table 1. The aerobic composting process was adopted, the tomato stalks were taken from the positioning test greenhouse, the corn stalks were green storage corn from the cattle farm, and the chicken manure was from fresh chicken manure from the chicken farm.

[0032] Table 1 Basic properties of compost materials

[0033]

[0034]The straw to be tested is crushed into 3-5cm by a pulverizer, the total weight of the material is 200kg, the initial moisture content is adjusted to 60-65%, and the height of the material pile is 1.2m. When the temperature of the pile body rises to 65°C-70°C, keep it for...

Embodiment 2

[0038] Example 2 Experiments on material moisture content, turning and ventilation control of combined composting of tomato stalks, corn stalks and livestock and poultry manure

[0039] In the experiment, tomato stalks, corn stalks and livestock and poultry manure were used for joint composting. The ratio of dry weight of materials is tomato straw: corn straw = 2:1 + 30% chicken manure + 0.5% bacterial agent, and it is carried out in the pilot composting pond of Gaocheng Experimental Demonstration Base.

[0040] Experimental design: Treatment 1: P1, turning 2 times, initial moisture content 50%; Treatment 2: P2, turning 2 times, initial moisture content 60% (control); Treatment 3: P3, turning 2 times, initial moisture content 70%; treatment 4: P4, turning once, initial moisture content 50%; treatment 5: P5, turning once, initial moisture content 60%; treatment 6: P6, turning once, initial moisture content 70% %; Treatment 7: P7, no turning, forced ventilation, initial moistur...

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Abstract

The invention provides a vegetable residue, crop straw and livestock and poultry excrement combined composting process. An aerobiotic and anaerobic combined composting mode is adopted in the process. The process comprises the steps of material pretreating, mixing, composting, primary fermenting, secondary fermenting, thorough decomposing, sieving or smashing, compost preparing and the like. Crop straw with a high-carbon nitrogen ratio is used, and the problems of high moisture content, low carbon-nitrogen ratio and poor air permeability existing in the high-temperature aerobiotic composting process of vegetable residues are effectively solved; according to the process, the nutrients and moisture of the vegetable residues can be utilized, harmless treatment can be carried out on the vegetable residues, the crop straw and livestock and poultry excrement through high-temperature composting, organic compost is produced, and resource utilization of planting and breeding waste is achieved.

Description

technical field [0001] The invention relates to the field of resource utilization of organic waste, in particular to a combined composting process of vegetable residues, crop straw and livestock manure. Background technique [0002] The planting area of ​​vegetables in my country reaches 19.64 million ha 2 , the annual output is 679.297 million tons (Ministry of Agriculture of the People's Republic of China, 2012), and the amount of waste generated in the vegetable planting industry is relatively large. Vegetable waste refers to daily vegetable waste, including roots, stems, leaves, rotten fruits, and tail vegetables discarded during product harvesting and processing (Huang Dingxi et al., 2002). Vegetable waste has high water content and rich nutrition. According to statistics, the annual vegetable waste in my country is about 100-150 million tons (Sun Zhenjun and Sun Yongming, 2006). The nutrients contained in these vegetable wastes are equivalent to 690,000 tons of ferti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/00C05F15/00
CPCC05F3/00C05F17/50C05F17/70C05F11/00C05F11/08Y02W30/40
Inventor 王丽英李若楠史建硕张彦才任燕利翟凤芝孙璇
Owner INST OF AGRI RESOURCES & ENVIRONMENT HEBEI ACADEMY OF AGRI & FORESTRY SCI
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