Drug residue often contains a certain amount of active ingredients and a large amount of crude fiber, crude fat, starch, crude polysaccharide, amino acids, and inorganic nutrients. It is one of the best raw materials for the production of Organic fertilizer. Large pharmaceutical companies often produce over ten thousand tons of traditional Chinese medicine residue annually. At present, the treatment of traditional Chinese medicine residues mainly involves landfilling, incineration, and natural accumulation, which can easily cause pollution to the surrounding environment and have high treatment costs. It is estimated that the annual treatment cost of 10000 tons of drug residues is up to hundreds of thousands. If 10000 tons of drug residues are comprehensively used to make Organic fertilizer, it can create an annual output value of several million yuan. After biological activation treatment, the content of nitrogen, phosphorus, potassium, and organic matter (calculated on a dry basis) per ton of pesticide residue is about 3%, 1.5%, 2.3%, and 55%, respectively. Based on an annual production of 10000 tons of pesticide residue biological fertilizer, it can save 81 tons of nitrogen fertilizer, 41 tons of phosphorus fertilizer, and 75 tons of potassium fertilizer, saving resources for society and fully meeting the requirements of circular economy development.
The production line of Manure from pharmaceutical residues is configured with the early fermentation part: Manure fermentation equipment, high moisture material grinder, and drum screen. Later granulation: mixing mixer, Manure granulator, disc granulator, wet mixing teeth granulator, Manure dryer, rotary cooler, drum screening machine, rotary coating machine, automatic weighing packaging machine, middle belt conveyor link. The production capacity of a single production line equipment should be 1-10t/h. If it is too small, it cannot reach the economic scale. If it is too large, it will increase the difficulty of transporting and storing raw materials and finished products. Drug residue is a conventional traditional Chinese medicine residue from pharmaceutical factories. Corn flour provides carbon source for microbial growth, accelerates the early fermentation speed, makes the fermentation temperature rise rapidly, and kills harmful bacteria and insect eggs. Wood chips have a slow-release effect and are excellent water carriers and fiber regulators. Using pharmaceutical residues as raw materials can not only reduce environmental pollution through waste utilization, but also increase the total nutrient content of fertilizers and increase the content of trace elements.
Pharmaceutical residue Organic fertilizer production line is the need of developing circular economy, building a resource-saving and environment-friendly society. It conforms to relevant industrial policies, is conducive to the sustainable development of manufacturers’ production, and can promote manufacturers’ production on the right track of modernization, scale and standardization.