Streptomycin fungus residue resource utilization method

Abstract

The invention relates to a streptomycin fungus residue resource utilization method. The method comprises the following steps: (1) taking fermented streptomycin fungus residues, and adjusting the water content of the streptomycin fungus residues to 50-60%; (2) crushing the streptomycin mushroom dregs treated in the step (1), sieving, and drying to constant weight; (3) putting the dried streptomycin fungus residues into a tubular muffle furnace, and performing high-temperature pyrolysis under the protection of nitrogen to obtain original biochar; (4) sieving the original biochar to obtain formed biochar; (5) soaking the formed biochar in a phosphoric acid solution with the mass concentration of 40-60%, and oscillating at 40-60 DEG C for 2-4h; then adjusting the supernate to be neutral, washing the precipitate with purified water, and drying to obtain phosphoric acid modified charcoal; the ratio of the mass of the formed biochar to the volume of the phosphoric acid solution is 11-13g: 50-70mL. The treatment cost is low, resource utilization of the antibiotic mushroom dregs can be achieved, and the method is applied to the related fields of soil improvement, greenhouse gas and heavy metal ion absorption, anaerobic digestion enhancement and the like.

Description

technical field [0001] The invention relates to the treatment and utilization of antibiotic residues, in particular to a resource utilization method for streptomycin residues. Background technique [0002] China is not only a big user of antibiotics, but also a big producer of antibiotics. According to statistics, my country's antibiotic production reached 219,000 tons in 2019, accounting for more than 70% of the global market. Antibiotic residue is the waste residue produced in the antibiotic production process. According to the estimation of 8-10 tons of wet residue produced by 1 ton of antibiotics, the output of antibiotic residue in my country in 2019 is as high as about 2 million tons. [0003] Antibiotic scum is the residue obtained after antibiotic strains are fermented, the fermentation broth is acidified and filtered, and it mainly consists of remaining medium, mycelium, metabolic intermediates and residual antibiotics. Because of the antibiotic residue in the bac...

AI Technical Summary

Problems solved by technology

Due to the antibiotic residues in the fungus residue, if it is not handled properly, it will cause serious environmental problems and threaten human health

Its disposal process has restricted the development of my country's pharmaceutical industry

In the traditional disposal technology, the direct production of feed additives and organic fertilizers from fungus residues has certain safety problems, and it will cause microorganisms to develop drug resistance, which has been banned by the state.

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