Circulation processing method for poultry and livestock manure

Abstract

A method for circulating treatment of poultry and livestock excreta is characterized in that poultry and livestock excreta accumulated in a poultry and livestock farm is divided into liquid waste mainly comprising urine and sewage and solid waste mainly comprising excrements, wherein the liquid waste is conveyed to a biogas pool device so as to carry out anaerobic fermentation, thereby generating biogas and biogas residue, while the solid waste is conveyed to a turner device so as to carry out aerobic fermentation; after fermentation, materials the water of which is evaporated are further dried inside a drying device; then, the dried materials are conveyed to an artificial charcoal forming machine so as to be made into fuel rods. The method carries out comprehensive utilization of poultry and livestock excreta and various contaminants in the farm, and makes waste materials into fuel rods and biogas, thereby greatly increasing economic value and preventing heavy metal ion from polluting crops; moreover, the method has more reasonable technological method and is easy to implement.

Description

technical field [0001] The invention relates to a method for treating poultry manure. Background technique [0002] With the continuous advancement of science and technology, the animal husbandry industry also uses a large number of animal husbandry machinery to raise livestock and chickens, so the amount of livestock manure and various wastes that are intensively processed is very large. If the treatment method is not appropriate, it is easy to pollute the environment. Therefore, The significance is very significant. [0003] The excrement of poultry and livestock in traditional livestock farms is usually processed by aerobic fermentation, in which a large number of turning machines are used to turn and stack organic waste for aerobic fermentation, and then make the fermented materials into Fertilizer, it can also turn waste into wealth to a certain extent, and comprehensively utilize waste. However, after long-term practice, it has been shown that there are also the foll...

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Problems solved by technology

However, after long-term practice, it has been shown that there are also the following problems: after the poultry excrement is fermented, a large amount of it is plant fiber, and the fertility is greatly lost. Moreover, it contains a large amount of heavy metal ions, pollutes the environment, and easily enters people's food again through the biological food chain. Among them, it affects people's health. Recently, due to the large-scale promotion and application of chemical fertilizers, the effect is good, so farmers are not very interested in the fertilizers made after fermentation. The most important point is that the traditional above-mentioned processing methods are economical and can only be used. The profit is meager or even a loss. Therefore, the treatment method of this kind of poultry excrement must be reformed and a new way out must be sought.

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