Title:
BIOCHAR-BASED THREE-DIMENSIONAL COMPOSITE MATERIAL AND METHOD FOR REMEDIATING HIGH-CONCENTRATION CHROMIUM-CONTAMINATED SOIL
Document Type and Number:
WIPO Patent Application WO/2023/226271
Kind Code:
A1
Abstract:
The present invention provides a biochar-based three-dimensional composite material and a method for remediating high-concentration chromium-contaminated soil. The biochar-based three-dimensional composite material is obtained by loading, oxidizing, and polymerizing biochar and m-phenylenediamine. The biochar-based three-dimensional composite material and a domesticated dominant strain are used together for remediating chromium-contaminated soil. According to the method, the defects that the microbial remediation period is long, the environmental adaptability is poor, physical adsorption of common biochar cannot fundamentally eliminate contaminants, and the like can be overcome. The synergistic effect of the two can enhance the actual remediation effect on the contaminated soil and shorten the remediation operation period. The biochar-based three-dimensional composite material of the present invention is simple in the preparation process, low in cost, environmentally friendly, free of secondary contamination, and significant in effect, thereby greatly increasing the reduction rate of Cr(VI), reducing the migration capacity and biological effectiveness of chromium, improving the soil stability, enhancing the soil fertility, and improving the diversity of soil microbial species.
Inventors:
YANG ZONGZHENG (CN)
PANG RUNYI (CN)
WANG JINJIN (CN)
DENG YING (CN)
WU ZHIGUO (CN)
LIU HUIYU (CN)
NIU YUE (CN)
CAO JINGGUO (CN)
WU LIYA (CN)
WANG CHUNHU (CN)
PANG RUNYI (CN)
WANG JINJIN (CN)
DENG YING (CN)
WU ZHIGUO (CN)
LIU HUIYU (CN)
NIU YUE (CN)
CAO JINGGUO (CN)
WU LIYA (CN)
WANG CHUNHU (CN)
Application Number:
PCT/CN2022/123013
Publication Date:
November 30, 2023
Filing Date:
September 30, 2022
Export Citation:
Assignee:
TIANJIN UNIV OF SCIENCE AND TECHNOLOGY (CN)
International Classes:
C12N1/36; B09C1/08; B09C1/10; C02F1/28; C12N1/20; C02F101/22; C12R1/01
Foreign References:
| CN110340132A | 2019-10-18 | |||
| CN111215021A | 2020-06-02 | |||
| CN102206340A | 2011-10-05 | |||
| CN102634014A | 2012-08-15 | |||
| CN102432084A | 2012-05-02 |
Attorney, Agent or Firm:
TIANJIN HEZHENG INTELLECTUAL PROPERTY AGENCY LTD (CN)
Download PDF: