Title:
POLYCYCLIC AROMATIC HYDROCARBONS CONTAMINATED SOIL REMEDIATION AGENT BASED ON MECHANISM OF PLANT-MICROBE COMBINED ACTION AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/051268
Kind Code:
A1
Abstract:
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 microorganism remediation, the remediation agent has a PAHs removal rate improved by 20%-40%, such that the PAHs removal rate is effectively increased, and the remediation efficiency of PAHs contaminated soil is improved.
Inventors:
ZHANG WEN (CN)
HAN BOYUAN (CN)
HUANG YUJIE (CN)
WANG JIANING (CN)
SONG FANYONG (CN)
ZHAO QINGQING (CN)
WANG LEILEI (CN)
GAO YONGCHAO (CN)
ZHENG LIWEN (CN)
CHEN GUANHONG (CN)
HAN BOYUAN (CN)
HUANG YUJIE (CN)
WANG JIANING (CN)
SONG FANYONG (CN)
ZHAO QINGQING (CN)
WANG LEILEI (CN)
GAO YONGCHAO (CN)
ZHENG LIWEN (CN)
CHEN GUANHONG (CN)
Application Number:
PCT/CN2023/101349
Publication Date:
March 14, 2024
Filing Date:
June 20, 2023
Export Citation:
Assignee:
INSTITUTE OF ECOLOGY SHANDONG ACADEMY OF SCIENCES CHINA JAPAN FRIENDSHIP BIOTECHNOLOGY RES CENTER SH (CN)
International Classes:
C09K17/40; B09C1/08; B09C1/10; C09K17/50; C12N1/20; C09K101/00
Foreign References:
| CN101724582A | 2010-06-09 | |||
| CN110396488A | 2019-11-01 | |||
| CN107988096A | 2018-05-04 | |||
| CN101972772A | 2011-02-16 | |||
| CN102776135A | 2012-11-14 | |||
| CN104475444A | 2015-04-01 | |||
| CN115975644A | 2023-04-18 | |||
| US20150104855A1 | 2015-04-16 | |||
| US20210178440A1 | 2021-06-17 |
Attorney, Agent or Firm:
JINAN JINDI INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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