Zero-pollution innocent treatment and high-additional value recycling process for dead beasts and birds

Abstract

The invention relates to a zero-pollution innocent treatment and high-additional value recycling process for dead beasts and birds and belongs to an intensive agriculture production technology. The process comprises the following steps: performing innocent treatment on the dead beasts and birds by utilizing a closed container, automatically grinding the dead beasts and birds, automatically transferring all solids and liquid into a closed hydrolysis tank, hydrolyzing under the conditions of the initial acid concentration c (1 / 2H2SO4) of 3-5mol / L, the temperature of 80-100 DEG C and 1-2 atmospheric pressures for 2-5 hours, and separating the upper grease used for biodiesel production when the temperature of hydrolysate is reduced to 80 DEG C below; and regulating the pH value of the hydrolysate to 1-3, and performing primary or secondary sedimentation to collect an amino acid solution used for amino acid fertilizer production by adopting a natural sedimentation method. According to the process, leaked liquid and volatile gas are avoided in the implementation process, new environmental pollution is avoided, the products are agricultural production necessities, the zero-pollution innocent treatment and high-additional value recycling for dead beasts and birds can be realized, and sustainable development of intensive animal husbandry is guaranteed.

Description

1. Technical field [0001] The invention relates to zero-pollution and harmless treatment of sick and dead livestock and poultry animals and high value-added resource utilization technology, which belongs to the agricultural intensive production technology. 2. Background technology [0002] According to statistics, my country produces about 450 million tons of fresh and live commercial livestock and poultry animals every year. Calculated based on the normal mortality rate of 5% in large-scale livestock and poultry breeding and 30% of the dead weight when sold, my country produces about 6.6 million tons of livestock and poultry every year. Fresh dead animals, in recent years, the state strictly prohibits and intensifies the crackdown on dead animals entering food. At one time, dead animals were littered and seriously polluted the environment. [0003] Among fresh livestock and poultry animals, about 70% are water, 8-10% are protein resources, 10-15% are fat resources, and 5-8% ...

AI Technical Summary

Problems solved by technology

However, if not utilized, these biological resources will be lost in the environment, thereby seriously polluting the environment and increasing the risk of zoonotic diseases

On March 8, 2013, more than 6,600 rotten dead pigs were salvaged from the Huangpu River, causing the government and surrounding residents to worry about the pollution of fresh water resources. The Ministry of Agriculture and governments at all levels quickly introduced emergency measures for the harmless treatment of sick and dead animals. , but in view of its effect, it cannot be implemented for a long time

Both deep burial and incineration do not consider the issue of resource utilization, resulting in a great waste of high-grade organic material resources. The treatment company has no economic benefits, and it is difficult to obtain a long-term mechanism. Moreover, deep burial also has the risk of polluting shallow water and groundwater. , incineration will increase the content of PM 2.5 in the atmosphere and pollute the atmosphere

The production of organic fertilizer after high-temperature and high-pressure cooking takes into account the issue of resource utilization. However, due to the low price of organic fertilizer products and the high cost of high-temperature and high-pressure cooking, the economic benefits of enterprises are still very low, and it is difficult to operate in an enterprise

The direct production of organic fertilizer by biological fermentation considers resource utilization issues. Although the production cost is low, the maximum temperature of biological fermentation is only 75°C, which makes it difficult to kill pathogenic bacteria. Frequent turning and throwing of composting process is very likely to cause the spread of pathogenic bacteria in the air. Pollution of the environment is unacceptable

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