POLYCYCLIC AROMATIC HYDROCARBONS CONTAMINATED SOIL REMEDIATION AGENT BASED ON MECHANISM OF PLANT-MICROBE COMBINED ACTION AND PREPARATION METHOD THEREFOR AND USE THEREOF

• Main Authors: WANG, Leilei, CHEN, Guanhong, HAN, Boyuan, ZHENG, Liwen, SONG, Fanyong, HUANG, Yujie, GAO, Yongchao, ZHAO, Qingqing, ZHANG, Wen, WANG, Jianing
• Format: Patent
• Language: Chinese; English; French
• Published: 14.03.2024
• Subjects: ADHESIVES; BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; DISPOSAL OF SOLID WASTE; DYES; ENZYMOLOGY; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MUTATION OR GENETIC ENGINEERING; NATURAL RESINS; PAINTS; PERFORMING OPERATIONS; POLISHES; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; RECLAMATION OF CONTAMINATED SOIL; RECLAMATION OF CONTAMINED SOIL SOIL; SPIRITS; TRANSPORTING; VINEGAR; WINE

A polycyclic aromatic hydrocarbons (PAHs) contaminated soil remediation agent based on the mechanism of plant-microbe combined action and a preparation method therefor and a use thereof. The soil remediation agent is biochar fixedly adsorbed with a bacterial solution of PAHs degrading bacteria and simulated root exudates; the PAHs degrading bacteria are Pseudarthrobacter scleromae J-1 and Bacillus sp. J-3; and the simulated root exudates are a mixture composed of saccharides, small molecular acids, and amino acids. Two strains capable of efficiently degrading PAHs are provided, and by fixing the bacterial solution of the PAHs degrading bacteria and the simulated root exudates to the biochar, the problems in a conventional plant-microbe remediation technique such as plant growth being easily influenced by environmental factors, the secretion amount and rate of the root exudates being limited by a growth cycle, and a rhizosphere effect action range being limited are solved. Compared with independent microorgani