| Autor: |
Hui Guo, Song Cheng, Baolin Xing, Mingliang Meng, Laihong Feng, Yanhe Nie, Chuanxiang Zhang |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Arabian Journal of Chemistry, Vol 17, Iss 4, Pp 105671- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
1878-5352 |
| DOI: |
10.1016/j.arabjc.2024.105671 |
| Popis: |
The sludge is pretreated to prepare the sludge bicohar by pyrolysis, which is divided into high-carbon sludge biochar and high-ash sludge biochar using flotation. The high-carbon sludge biochar and high-ash sludge biochar are used to prepare the sludge activated carbon, MgAl-layered double hydroxides (MgAl-LDO) and sludge ceramsite for Pb2+, methyl orange (MO) and ciprofloxacin (CIP) removal from wastewater, respectively. The sludge activated carbon is prepared from high-carbon sludge biochar using ZnCl2 as chemical agent in the additive of pine sawdust for MO and CIP removal with adsorption amount of the 754.05 mg/g and 635.62 mg/g, respectively. Mg-Al LDO is prepared from the leaching solution of the high-ash sludge bicohar, which can quickly remove Pb2+ from wastewater with adsorption amount of 147.89 mg/g. Mg-Al LDO has good reusability after three cycles. The MO/CIP and Pb2+ adsorption mechanism are analyzed and investigated. The sludge ceramsite prepared from the leaching residue of high-ash sludge bicohar is also used for Pb2+ removal. The above results indicate that sludge is converted into three kinds of the adsorbents for pollution removal from wastewater. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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