Gradient utilization method of animals dies of diseases

Abstract

The invention relates to a gradient utilization method of animals dies of diseases. The method comprises the steps of conducting pyrogenic decomposition on the animal bodies dies of diseases or meat and bone meal obtained through pretreatment, obtaining coke, pyrolytic tar and pyrolysis gas through preparation, serving the coke absorbed with smoke pollutants as fertilizer or soil improvement agents, and achieving gradient utilization. The pyrolytic tar is used for preparing biodiesel, the pyrolysis gas is used for providing the heat needed by the pyrolytic process, the method is low in energy consumption or does not need the external energy consumption, the added value of products is high, and the method is suitable for application and popularization.

Description

technical field [0001] The present invention relates to a cascaded utilization method of dead animals, in particular to a cascade utilization method of dead animals. Background technique [0002] In view of the limitations of breeding technology, management level, and epidemic prevention conditions, it is very easy to cause disease and death of animals in the breeding process. However, there is currently a lack of special treatment facilities for sick and dead animals. For dead animals, farmers often discard their dead bodies in roadside ditches, and even sell dead animals at low prices in order to reduce losses. This threatens food safety and brings great harm to people's lives and health Big hidden danger. According to news reports, in some areas, pig dealers buy sick and dead pigs for a long time and sell them to major provinces and cities such as Guangdong, Hunan, Chongqing, Jiangsu, Anhui, etc., with annual sales of more than 20 million yuan. . At present, the releva...

AI Technical Summary

Problems solved by technology

First of all, for the incineration method, it can completely eliminate pathogenic microorganisms, but its disadvantages are also very obvious. Incineration will produce secondary pollution, and the cost of the incinerator is high, and the environmental protection treatment of secondary pollutants will further increase the cost. Therefore At present, this processing method has gradually withdrawn from the stage of history.

Secondly, the chemical method, that is, in a closed high-pressure container, by passing high-temperature saturated steam into the container interlayer or container, under the action of dry heat, pressure or high temperature, pressure, the sick and dead animals are made into industrial oil, and the residue is made into oil. This method can also completely eliminate pathogenic microorganisms and realize resource recycling. However, a large amount of malodorous gas and waste water will be generated during the treatment process, which will have a negative impact on the environment, and the cost is very high. The price of treatment equipment Expensive; but the value of the product is low

Thirdly, the burial method is also a method that has gradually withdrawn from the stage of history. The European Union has explicitly banned this method. This method cannot completely eliminate pathogenic microorganisms and is harmful to the environment, especially the pollution of drinking water, which will cause irreparable consequences.

The last is the fermentation method, which cannot completely eliminate pathogenic microorganisms, and may cause the spread of pathogenic microorganisms during the composting process, and the treatment cycle is long and the processing capacity is limited