Livestock and poultry manure tower type fermentation harmless treatment process

Abstract

The invention provides a livestock and poultry manure tower type fermentation harmless treatment process. The process comprises the following steps of (1) pre-fermentation; (2) solid-liquid separation; (3) aerobic fermentation; (4) anaerobic fermentation; (5) crushing and packaging. The livestock and poultry manure tower type fermentation harmless treatment process has the advantages that the process can realize the automatic proportioning, stable conveyance, continuous scheduling fermentation, fully automatic control material production, automatic oxygen supply, temperature regulation and humidity dehumidification; organisms generated by aerobic biobacteria can be used for realizing zero pollution and zero discharge harmless treatment on the organic waste such as manure and urine in farms.

Description

technical field [0001] The invention relates to the field of livestock and poultry manure fermentation treatment, in particular to a tower-type fermentation harmless treatment process of livestock and poultry manure. Background technique [0002] In recent years, under the supervision of China's environmental protection and animal production management departments, some large-scale farms with strong funds have successively carried out livestock and poultry manure treatment, but there are great differences in the selection of treatment methods, process design, and treatment scale. There are many problems The current compost production process mainly has the following problems: First, some small and medium-sized farms and chicken manure processing plants use simple open stacking or static ventilation fermentation methods to process poultry manure, which is backward in technology, low in mechanization, and occupies an area Large, the compost smell and sewage have a great impact...

AI Technical Summary

Problems solved by technology

[0002] In recent years, under the supervision of China's environmental protection and animal production management departments, some large-scale farms with strong funds have successively carried out livestock and poultry manure treatment, but there are great differences in the selection of treatment methods, process design, and treatment scale. There are many problems The current compost production process mainly has the following problems: First, some small and medium-sized farms and chicken manure processing plants use simple open stacking or static ventilation fermentation methods to process poultry manure, which is backward in technology, low in mechanization, and occupies an area Large, the compost smell and sewage have a great impact on the surrounding environment, it is difficult to control the breeding of mosquitoes and flies, and it is greatly affected by the weather and the environment. The compost field often becomes a pollution source for the farm and the surrounding areas, and the quality of the compost produced is even more difficult to guarantee; 2. Some large-scale farms mostly use trough-type turning fermentation to process poultry manure. In order to facilitate mechanical operation and water vapor volatilization, they all adopt open type, and occupy a large area. Ventilation and oxygenation are not easy to operate, water volatilization is slow, and the fermentation cycle is average. As long as 25-30 days, the energy consumption is relatively high, and it is easily affected by the climate; third, although some large-scale farms use self-propelled compost turning and throwing machines imported from Germany and Finland, the mechanical maintenance is complicated and expensive, and only applicable It is fermented in an open, dry and rainless area; the material will produce a large amount of harmful gas during the fermentation process, which will cause serious pollution to the atmosphere. In addition, the tank type fermentation occupies a large area and requires a large investment, which cannot effectively kill the bacteria in the feces. There is a danger of infecting chickens; stacking fermentation and tank-type stacking fermentation can only solve oxygen-enriched fermentation, but cannot achieve anaerobic fermentation, cannot produce high-grade bio-organic bacterial fertilizer, and the organic fertilizer produced cannot meet the national bio-organic fertilizer standard; In short, the current equipment still cannot solve the problem of poor operating environment and open fermentation, which makes it difficult to collect and treat the odor of the fermentation field