▎ 摘　　要

NOVELTY - Method for promoting anaerobic digestion hydrogen production efficiency involves (a) obtaining exfoliated layered materials, and adjusting pH of the solution to 10 with sodium hydroxide (NaOH), (b) obtaining reduced graphene oxide (RGO), (c) settling and concentrating mixed bacteria sludge collected from anaerobic digester of domestic sewage treatment plant, sieving, heating mixed sludge to inhibit activity of H2-producing bacteria, enriching H2-producing bacteria, and inoculating the treated mixed sludge into anaerobic sequencing batch reactor (ASBR), and (d) feeding waste water from top of reactor, simultaneously joining reactor after mixing the RGO with the nonionic surfactant T80, adjusting speed of the peristaltic pump to control the water flow rate through sequential batch operation, maintaining temperature at room temperature, installing a mechanical stirrer on the top of the reactor, sealing and protecting from light for anaerobic digestion to produce hydrogen. USE - The method is useful for promoting anaerobic digestion hydrogen production efficiency. ADVANTAGE - The method improves mass transfer efficiency between substrate and microorganisms to increase activity of hydrogen oxidase, improves hydrolysis efficiency and hydrogen production efficiency of kitchen waste water, is easy to scale production, and is performed in a simple and cost-effective manner. DETAILED DESCRIPTION - Method for promoting anaerobic digestion hydrogen production efficiency involves (a) adding graphene oxide to distilled water and ultrasonically processing in an ultrasonic cleaner for 1-4 hours to obtain exfoliated layered materials, and adjusting pH of the solution to 10 with sodium hydroxide (NaOH), (b) adding hydrazine monohydrate to the solution in step (a) at a temperature of 90-100°C, stirring for 20-26 hours, washing obtained powder and vacuum-drying to obtain reduced graphene oxide (RGO), (c) settling and concentrating mixed bacteria sludge collected from anaerobic digester of domestic sewage treatment plant, sieving, heating mixed sludge at 100-110°C for 0.1-0.6 hours to inhibit activity of H2-producing bacteria, enriching H2-producing bacteria, and inoculating the treated mixed sludge into anaerobic sequencing batch reactor (ASBR), and (d) feeding waste water to-be-treated from the top of the reactor, simultaneously joining reactor after mixing the RGO with the nonionic surfactant T80, adjusting speed of the peristaltic pump to control the water flow rate through sequential batch operation, maintaining temperature at room temperature, installing a mechanical stirrer on the top of the reactor, sealing and protecting from light for anaerobic digestion to produce hydrogen.