Treatment method of penicillin mushroom dregs

Abstract

The invention discloses a treatment method of penicillin mushroom dregs. The treatment method comprises the following process steps of: (A), pyrohydrolysis and separation treatment: uniformly mixing the penicillin mushroom dregs with water to perform constant-temperature hydrolysis reaction, and performing solid-liquid separation at a room temperature after the reaction is finished to obtain sediments for later use; and (B), anaerobic digestion treatment: inoculating anaerobic activated sludge in an anaerobic fermentation tank, mixing the sediments obtained in the step (A) with surplus sludge caused by wastewater biological treatment and injecting a mixture into the fermentation tank to stir at a constant temperature, and draining biogas residues and feeding during fermentation. By using the treatment method, residues of drugs in the penicillin mushroom dregs can be completely eliminated, so that the problem that anaerobic fermentation of single penicillin mushroom dreg cannot be efficiently sustained is solved, and minimization and innocent treatment to the penicillin mushroom dregs are realized; and moreover, biogas residues obtained by treatment of the penicillin mushroom dregs can be used as raw materials of organic fertilizers, and biogas generated during anaerobic reaction can be used as cleaning fuels, so that safe and effective treatment and resource utilization of the penicillin mushroom dregs are realized.

Description

technical field [0001] The invention relates to a treatment technology for antibiotic residues, in particular to a treatment method for penicillin residues. Background technique [0002] my country is a big penicillin producing country, and the solid waste produced in the penicillin production process is penicillin slag, which has high water content and complex composition, not only contains a large amount of bacterial protein (accounting for more than 40% of dry weight), rich in vitamins Nutrients such as growth factors and culture medium residues, as well as various toxic metabolites of microorganisms and downstream processing additives, etc. Penicillin slag has the characteristics of perishability, instability, and stench, and under high temperature and long-term storage conditions, it is very easy to ferment and produce unpleasant odors. Serious environmental pollution. In addition, because the penicillin residue contains residual medium and trace antibiotics, it has a ...

AI Technical Summary

Problems solved by technology

However, trace amounts of antibiotics remaining in the bacteria residue may be enriched in animals and plants, thereby posing potential impacts and risks on ecosystems, food safety, and human health.

On August 1, 2008, my country clearly listed antibiotic residues as "hazardous waste" and prohibited antibiotic residues from being directly used as feed and fertilizer; 2) Incineration: The incineration of penicillin residues can quickly turn the residues into ashes , so as to achieve the purpose of reduction and harmlessness, but because the penicillin residue has the characteristics of large output, high moisture content, and low calorific value, drying and incineration of the residue requires a lot of heat energy, so the cost of incineration is high; The processing capacity of some hazardous waste incineration facilities is far from meeting the demand, and it is difficult to implement the incineration disposal of penicillin residue; 3) Landfill: Landfill is a relatively mature technology. Large area, high disposal cost, difficulty in site selection for large-scale landfill, long transportation distance, and possible contamination of groundwater by seepage

This invention solves the problems that penicillin bacteria residues are not easy to be completely detoxified and dried, the safety of feeding is low, and the environment is polluted.

However, the preparation of detoxified penicillin bacteria residues in this invention requires the preparation of strains in advance, and the preparation method is cumbersome and difficult to operate; carbon source substances need to be added during fermentation treatment, which increases the processing cost; and the processed products are used for feed, There are still certain technical and policy risks

At present, there are many studies on the treatment of penicillin residues by anaerobic fermentation, but the existing fermentation treatment methods for penicillin residues generally have disadvantages such as difficulty in continuous fermentation, incomplete treatment, and difficulty in completely removing drug residues. , which limits its application