Title:
COMPOSITE BIOCHAR FOR PREVENTING AND TREATING HEAVY METAL POLLUTION AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/199445
Kind Code:
A1
Abstract:
Composite biochar for preventing and treating heavy metal pollution and a preparation method therefor, the method specifically using centipede grass to enrich heavy metals arsenic and lead in soil, then sintering centipede grass with hydroxyapatite, sepiolite and chitosan, and compounding same with microorganisms to obtain composite biochar. In the method, the heavy metals arsenic and lead are stably enriched or coated in the composite biochar, which significantly reduces the potential dangers of the heavy metals arsenic and lead to the environment.
Inventors:
WANG LEI (CN)
XI BEIDOU (CN)
SHAO YAN (CN)
ZENG HONGHU (CN)
XU NAN (CN)
LI SHAOFENG (CN)
CHANG MING (CN)
WANG JINSHENG (CN)
WANG XIAOSHU (CN)
WANG YANGYANG (CN)
ZHANG GEN (CN)
PAN LULU (CN)
ZHANG KUI (CN)
XI BEIDOU (CN)
SHAO YAN (CN)
ZENG HONGHU (CN)
XU NAN (CN)
LI SHAOFENG (CN)
CHANG MING (CN)
WANG JINSHENG (CN)
WANG XIAOSHU (CN)
WANG YANGYANG (CN)
ZHANG GEN (CN)
PAN LULU (CN)
ZHANG KUI (CN)
Application Number:
PCT/CN2022/081180
Publication Date:
September 29, 2022
Filing Date:
March 16, 2022
Export Citation:
Assignee:
CHINESE RES ACAD ENV SCIENCES (CN)
International Classes:
B09C1/10; B09B3/00
Foreign References:
| CN113083850A | 2021-07-09 | |||
| CN111389904A | 2020-07-10 | |||
| CN105130693A | 2015-12-09 | |||
| CN106734159A | 2017-05-31 | |||
| CN103894401A | 2014-07-02 | |||
| CN110564433A | 2019-12-13 | |||
| CN106475408A | 2017-03-08 | |||
| DE3921336A1 | 1991-01-10 | |||
| NL1010703C2 | 1999-06-07 |
Attorney, Agent or Firm:
BEIJING CONCEPT INTELLECTUAL PROPERTY AGENCY (CN)
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