Composite high-temperature microbial inoculum and application thereof in plastic degradation

• Main Authors: ZHOU SHUNGUI, XING RUIZHI, CHEN ZHI
• Format: Patent
• Language: Chinese; English
• Published: 17.09.2021
• Subjects: BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; ENZYMOLOGY; FERTILISERS; FERTILISERS CHARACTERISED BY THEIR FORM; MANUFACTURE THEREOF; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS; MUTATION OR GENETIC ENGINEERING; ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE; PROCESSES USING MICROORGANISMS; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; VINEGAR; WINE

The invention discloses a composite high-temperature microbial inoculum and application thereof in plastic degradation. The composite high-temperature microbial inoculum contains thermophilic iron reducing bacteria and iron minerals. According to the composite high-temperature microbial inoculum, microorganisms can grow and breed by directly utilizing nutrient substances in organic solid wastes under the aerobic condition, Fe (II) of the iron minerals in the composite high-temperature microbial inoculum is oxidized into Fe (III), and hydroxyl radicals are generated, so that the surface hydrophobicity of a plastic material is destroyed, and oxidative degradation of micro-plastics in compost is promoted. Under an anoxic condition, Fe (III) is reduced into Fe (II) by the thermophilic iron reducing bacteria, therefore, by changing the dynamic change of the aerobic-anoxic region in the composting process, the continuous process of hydroxyl radicals by iron redox cycle in the compost can be promoted, and the effici