Livestock and poultry waste recycling method

Abstract

The invention discloses a livestock and poultry waste recycling method. The method includes the steps of: (1) carrying out solid-liquid separation on to-be-treated livestock and poultry waste, and collecting solid waste and liquid waste respectively; (2) putting the solid waste into an anaerobic tank for fermentation; (3) sequentially introducing the liquid waste into a deodorization tank, a purification tank, an automatic filter and a membrane separation water purification system for decomposition and purification treatment, and then performing discharging; wherein a composite biological bacterium preparation is added into the deodorization tank and / or the purification tank, and the composite biological bacterium preparation comprises a photosynthetic bacterium group, a lactic acid bacterium group, a yeast group, an actinomycete group, a bacillus group, a nitric acid bacterium group, a phosphorus-solubilizing bacterium group and a nitrogen-fixing bacterium group. The sewage treatmentscheme disclosed by the invention is combined with the composite biological bacterium preparation, so that solid waste in the livestock and poultry waste generates biogas to realize resource utilization, and the liquid waste can be used for backflushing of livestock and poultry houses or irrigation after treatment, and can also be directly discharged after reaching the discharge standard.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a method for recycling livestock and poultry waste. Background technique [0002] Livestock and poultry farms will produce a large amount of livestock and poultry waste during the process of livestock and poultry breeding. Currently, the treatment processes for livestock and poultry waste mainly include three technologies: returning to the field, natural treatment and industrialized treatment. [0003] Returning to the field refers to the direct discharge of livestock and poultry waste into the farmland, but direct discharge of a large amount of livestock and poultry waste into the farmland may lead to the precipitation of nitrate, phosphorus and heavy metals in the waste, thereby affecting surface water and groundwater. Pollution; moreover, during the biodegradation of livestock and poultry waste, harmful gases such as ammonia and hydrogen sulfide ma...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of large investment, high energy consumption and difficult maintenance and management in the prior art of livestock and poultry waste treatment process, the present invention provides a method for recycling livestock and poultry waste

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