A method for preparing biochar based on waste salt assisted harmless disposal of bacterial residue

Biochar was prepared by pyrolyzing antibiotic bacterial residue and pharmaceutical waste salt, which solved the problems of harmless disposal and resource utilization of antibiotic bacterial residue and pharmaceutical waste salt. It achieved the effects of dehydration, detoxification of bacterial residue and purification of wastewater, and has the advantages of simplicity, low cost and good application prospects.

CN122380338APending Publication Date: 2026-07-14HENAN NORMAL UNIV
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN NORMAL UNIV
Filing Date
2026-03-19
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing technologies for the disposal of antibiotic bacterial residue and pharmaceutical waste salts suffer from resource waste, high disposal costs, and serious secondary pollution of the ecological environment. There is an urgent need to develop simple, efficient, and harmless disposal and resource utilization methods.

Method used

After mixing antibiotic bacterial residue and pharmaceutical waste salt, biochar is prepared by pyrolysis. The specific steps include mixing, drying, crushing, pyrolysis, washing and drying to form a structurally stable bacterial residue waste salt biochar material.

Benefits of technology

The dehydration of antibiotic bacterial residue and the removal of residual antibiotics were achieved, and stable biochar materials were obtained for purifying Cr(VI) in wastewater, which has good potential for resource utilization and ecological benefits.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The application discloses a kind of based on waste salt auxiliary bacteria residue harmless disposal biochar preparation method, comprising the following steps: (1) antibiotic bacteria residue and pharmaceutical waste salt are mixed uniformly, and after 15-120min, it is dried at 100-120 DEG C, after crushing, screening and obtaining mixture;(2) under nitrogen atmosphere, with 4-6 DEG C / min heating rate, temperature is raised to 500-1000 DEG C, keeps 1.5-2.5h to the mixture pyrolysis, subsequently cooled to room temperature under nitrogen atmosphere and obtains biochar, with deionized water to biochar centrifugal washing 2-5 times, in 50-70 DEG C oven drying 12-16h, grinding screening, bacteria residue waste salt biochar material is obtained.The method provides a complete and systematic scheme for antibiotic bacteria residue harmless, resource, the method is simple, low in cost, operability is strong, with outstanding social and ecological benefits and has good application and popularization prospect.
Need to check novelty before this filing date? Find Prior Art