| Title | Adsorption characteristics of coal gasification fine slag with alkali-dissolution and hydrothermal treatment on methylene blue |
|---|---|
| ID_Doc | 7398 |
| Authors | Gao, Y; Wang, YJ; Yan, YJ; Yan, SL; Wang, WD; Xu, ZQ; Sun, MJ; Tu, YN |
| Title | Adsorption characteristics of coal gasification fine slag with alkali-dissolution and hydrothermal treatment on methylene blue |
| Year | 2024 |
| Published | |
| Abstract | The resource utilization of coal gasification fine slag (FS) and the harmless treatment of dyeing wastewater are crucial for establishing a zero-emission industrial system and a circular economy. This study used FS as raw material and divided it into two particle sizes through ultrasonic pretreatment enhanced wet sieving. The composite materials were synthesized via an alkaline hydrothermal process from different components in FS was compared, and applied as adsorbents for the removal of methylene blue from printing and dyeing wastewater. Finally, the kinetic and thermodynamic model developed for MB from printing and dyeing wastewater. The maximum adsorption of MB by the composite material prepared from low carbon component (<0.125 mm) could reach more than 180 mg center dot g(-1). The research results have important theoretical and practical value for guiding the high-value utilization of FS and its application in dye wastewater treatment. |
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