What are the principles of treatment and utilization of cattle manure?

(1) The principle of resource utilization improves the utilization value, develops its energy and fertilizer value at multiple levels and functions, maximizes the utilization of cow dung and obtains multiple benefits at the same time. (2) The principle of harmless treatment uses biological treatment technology to turn cow dung into treasure and produce high-quality organic fertilizer. At the same time, we should minimize the damage to water, atmosphere, soil and crops, and reduce the occurrence and spread of diseases. (3) The principle of reduction treatment advocates "separation of sewage and feces and urine", and feces and urine are collected, stacked and treated in different ways and channels. (4) The principle of low-cost governance should proceed from reality and take comprehensive measures to reduce governance costs and improve governance effects.