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Method for industrially processing pig manure by engineering fly maggots to produce fly maggot organic fertilizer

An engineering fly and factory technology, applied in the field of large-scale production of bio-organic fertilizers, can solve the problems of large environmental pollution, large odor diffusion area and high cost, reduce soil heavy metal pollution, reduce investment and operating costs, and reduce construction and maintenance costs. Low cost of use

Inactive Publication Date: 2019-04-30
朱纪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the methods of processing pig manure are mainly divided into two types: stacking fermentation and biogas fermentation; stacking fermentation is mostly used in pig manure organic fertilizer production enterprises, and pig manure is collected in a concentrated manner for organic fertilizer production, and the stacking time is long. It takes up to 40 days at the fastest, and the time is longer when the temperature is low, and the effect of stacking and fermentation is poor; the resource occupancy rate is high, and this method takes up space for long-term stacking, causing fecal water to seep, and the smell spreads over a large area, causing secondary pollution to the environment ; incomplete fermentation of feces
The feces are rotten and wet, smelly, difficult to transport, and difficult to apply directly; the quality of organic fertilizer is poor
Compost retting fermentation cannot remove harmful substances such as pathogenic bacteria, insect eggs, and heavy metals in pig manure; at the same time, the organic fertilizer produced by compost retting has poor fertilizer efficiency and low resource utilization rate; biogas fermentation is mainly used for pig manure on the farm itself, which belongs to Supporting facilities and separation equipment are costly; solid-liquid separation mechanical equipment is basically imported equipment, which is expensive and costly, while domestic machinery has many failures; fermentation time is long
The general retention time is about 25 days, and the time is longer when the temperature is low, resulting in poor fermentation effect; the environmental pollution is large, and the volume of dung water after separation is large, without treatment, inputting into the field will pollute the environmental groundwater; the separated dung residue is directly applied to the field , without further processing, it will be fermented in Daejeon for the second time
[0005] In summary, the traditional pig manure treatment methods can no longer meet the country's requirements for environmental governance, which seriously restricts the healthy development of the pig breeding industry

Method used

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  • Method for industrially processing pig manure by engineering fly maggots to produce fly maggot organic fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] 1. Fly breeding

[0045] Use foam sandwich panels to make a thermal insulation room with a length of 10 meters, a width of 8 meters, and a height of 2.2 meters, and make two long and equal-area thermal insulation rooms with partitions in the middle of the long sides. In each insulation room, metal aluminum mesh is used as the wall and fly resting platform, and stainless steel square tubes are used as the skeleton to make a metal aluminum mesh room with a length of 5 meters, a width of 5 meters, and a height of 2.2 meters. In each aluminum mesh room, use An aluminum mesh with a height of 2.2 meters and a width of 1.5 meters is used as a resting platform for the species of flies.

[0046] The two breeding houses can breed 2.2 million breeding flies, and the eggs produced can handle 5 tons of pig manure.

[0047] The temperature of the fly house is controlled at 28°C, the light is controlled at 10 lux per square meter, and the light time is guaranteed to be 16 hours.

[...

Embodiment 2

[0059] 1. Fly breeding

[0060] The temperature of the fly house is controlled at 26°C, the light is controlled at 5 lux per square meter, and the light time is guaranteed to be 13 hours.

[0061] 2. Larval cultivation

[0062] The collection of fly eggs is the key to the number of larvae. The ovum collection is made by uniformly mixing 60% pig manure, 30% distiller's grains, and 10% wheat bran. The egg collection time is 8:00 am to 5:00 pm every day. Cover with wheat bran with a water content of 70%, and put it in an egg brooding room with a temperature of 15° C. for 10 hours.

[0063] 3. Treatment of pig manure

[0064] The preparation of pig manure, the dry and wet separated pig manure is mixed with 25% distiller's grains, and piled into the pig manure treatment tank as food for fly maggot larvae.

[0065] The entire treatment process is carried out in the fly maggot treatment workshop. The thickness of the pig manure accumulation is 10cm. The pig manure treatment pool i...

Embodiment 3

[0073] 1. Fly breeding

[0074] The temperature of the fly house is controlled at 30°C, the light is controlled at 15 lux per square meter, and the light time is guaranteed to be 19 hours.

[0075] 2. Larval cultivation

[0076] The collection of fly eggs is the key to the number of larvae. The ovum collection is made by uniformly mixing 60% pig manure, 30% distiller's grains, and 10% wheat bran. The egg collection time is 8:00 am to 5:00 pm every day. Cover with wheat bran with a water content of 100%, and put it in an egg brooding room with a temperature of 15° C. for 14 hours.

[0077] 3. Treatment of pig manure

[0078] The preparation of pig manure, the dry and wet separated pig manure is mixed with 25% distiller's grains, and piled into the pig manure treatment tank as food for fly maggot larvae.

[0079] The whole treatment process is carried out in the fly maggot treatment workshop. The thickness of the pig manure accumulation is 10cm. The pig manure treatment pool ...

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Abstract

The invention provides a method for industrially processing pig manure by engineering fly maggots to produce a fly maggot organic fertilizer, and belongs to the technical field of large-scale production of bioorganic fertilizers. The method comprises the following steps: fly larva breeding, fly blow collection, larva hatching, pig manure preparation, pig manure processing, fly maggot separation, and fertilizer granulation. The method has the advantages of realization of low-cost, low-pollution, high-efficiency treatment of the pig manure, achieving of resource recycling, protection of the ecological environment and creation of economic values.

Description

technical field [0001] The invention belongs to the technical field of large-scale production of bio-organic fertilizers, and in particular relates to a method for industrially processing pig manure with engineering fly maggots to produce fly maggot organic fertilizers. Background technique [0002] In recent years, with the large-scale and intensive development of my country's livestock and poultry breeding industry, China has become the world's largest pig-raising country, but it has also brought some negative problems. According to statistics, the annual discharge of livestock and poultry manure in China exceeds 4 billion tons, which is 4.1 times that of industrial waste. [0003] Livestock and poultry manure is a huge source of environmental pollution, but also a huge biomass energy pool, which can provide a lot of energy for people. Pig manure contains a large amount of undigested organic matter and minerals. If it is not treated in time, it will be fermented and decom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F15/00C05F17/00A01K67/033
CPCA01K67/033C05F3/00C05F17/05C05F5/008C05F5/002Y02W30/40
Inventor 朱纪樊成然
Owner 朱纪