Title:
FENTON SLUDGE-BASED METHOD FOR PREPARING TWO-STAGE ADSORPTION MATERIAL, AND USE
Document Type and Number:
WIPO Patent Application WO/2024/077831
Kind Code:
A1
Abstract:
A fenton sludge-based method for preparing a two-stage adsorption material. The method comprises: performing primary pyrolysis on fenton sludge powder to obtain a first-stage adsorption material; and after the first-stage adsorption material adsorbs magnesium ions, performing secondary pyrolysis to obtain a second-stage adsorption material, wherein the temperature of the primary pyrolysis is 600-900℃, the first-stage adsorption material has good adsorption activity on magnesium metal, and the second-stage adsorption material has good adsorption activity on phosphorus, thereby achieving highly-efficient comprehensive treatment of fenton sludge, magnesium-containing wastewater and phosphorus-containing wastewater.
Inventors:
DENG BIN (CN)
QIU YALI (CN)
LIU YONGQI (CN)
LI CHENGGANG (CN)
GONG QINXUE (CN)
LI CHANGDONG (CN)
QIU YALI (CN)
LIU YONGQI (CN)
LI CHENGGANG (CN)
GONG QINXUE (CN)
LI CHANGDONG (CN)
Application Number:
PCT/CN2023/077180
Publication Date:
April 18, 2024
Filing Date:
February 20, 2023
Export Citation:
Assignee:
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
International Classes:
B01J20/02; B01J20/30; C02F1/28; C02F101/20
Foreign References:
| CN114452936A | 2022-05-10 | |||
| CN113856628A | 2021-12-31 | |||
| CN109092247A | 2018-12-28 | |||
| CN113786804A | 2021-12-14 | |||
| CN111617787A | 2020-09-04 | |||
| CN112680198A | 2021-04-20 | |||
| US20020040864A1 | 2002-04-11 |
Attorney, Agent or Firm:
BEIJING YZH IP FIRM (CN)
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