| Title | Sulfides removal from slag infiltrate with layered double hydroxides |
|---|---|
| ID_Doc | 64944 |
| Authors | Dan, OA |
| Title | Sulfides removal from slag infiltrate with layered double hydroxides |
| Year | 2021 |
| Published | |
| Abstract | Special place among a wide range of pollution sources of water bodies is occupied by industrial wastewater as they contain a huge amount of harmful substances. Sulfides are present in such substances list and can get into water bodies directly with industrial wastewater. Slag infiltrate is formed as a result of contact of metallurgical slag with water. Sulfides concentrations in the slag infiltrate can be around 500 mg/L. Sorption methods are perspective for wastewater treatment from sulfur compounds. A method based on the use of Mg/(Mg + Al) layered double hydroxides (LDHs) with 0.72 mol/mol Mg and Al molar ratio as sorbents is proposed for the removal of sulfides from the slag infiltrate. Prospects for their using for purifying slag infiltrate from sulfides as well as the kinetics of sulfides removal in the presence of proposed sorbents using model solutions and slag infiltrate samples are presented. It was found that the effectiveness of using Mg/(Mg + Al) LDHs with 0.72 mol/mol molar ratio of Mg and Al for the slag infiltrate treatment from sulfides is over 40% and for model solutions is over 90%. |
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