Broussonetia papyrifera charcoal and preparation method thereof, and broussonetia papyrifera charcoal-based soil heavy metal mineralizer and application thereof

• Main Authors: NIE NING, XIAO JINBIN, GAO ZHENGLONG, CHEN HONG, LIANG BO, WANG PINSHENG
• Format: Patent
• Language: Chinese; English
• Published: 01.09.2023
• Subjects: ADHESIVES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; DYES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; POLISHES; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention provides a paper mulberry charcoal material and a preparation method thereof as well as a paper mulberry charcoal-based soil heavy metal mineralizer and application thereof, and belongs to the technical field of soil remediation. According to the preparation method of the broussonetia papyrifera carbon material, the dense structure of the broussonetia papyrifera material can be effectively changed within a short time by utilizing a steam explosion technology; after high-temperature carbonization, the internal porosity and the specific surface area of the paper mulberry fibers are greatly increased, surface functional groups are enriched, and the heavy metal ion adsorption efficiency of the carbon material is improved; the broussonetia papyrifera material is soaked in the reducing slurry, so that the prepared broussonetia papyrifera carbon material can reduce high-valence heavy metal in soil into low-valence heavy metal with low toxicity, and the harmful effect of the heavy metal on the soil is r