Removal of As(V) by a core-shell magnetic nanoparticles synthesized with iron-containing water treatment residuals

Zeng, Hong‐Yan; Zhai, Longxue; Qiao, Tongda; Zhang, Jie; Liu, Dong

doi:10.1016/j.colsurfa.2021.127074

Cited by 10 publications

(1 citation statement)

References 43 publications

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“…Iron-containing sludge is a kind of solid waste, which is usually treated by processes involving landfill, incineration, and other methods. However, dioxins, NOx, SO 2 , and heavy metals released during the incineration of sludge can cause serious air pollution, and the landfill process may cause secondary pollution of groundwater and soil [7][8][9][10]. Therefore, reasonable resource utilization of sludge plays a critical role in environment treatment research.…”

Section: Introductionmentioning

confidence: 99%

Heterogeneous Photo-Fenton Removal of Methyl Orange Using the Sludge Generated in Dyeing Wastewater as Catalysts

Liu

Cui

et al. 2022

Water

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The disposal process of iron-containing sludge often leads to secondary pollution. Pyrolysis of sludge appears to be less polluting than conventional methods. Herein, the heterogeneous photo-Fenton catalysts were prepared using sludge generated in the dyeing wastewater through a simple one-step pyrolysis route. The catalysts were characterized by XRD, FT-IR, XPS, EDS, BET, and SEM. The batch experiments for methyl orange (MO) degradation were performed to evaluate the efficiency and stability of the catalysts. Among the catalysts prepared, FeCN-300 exhibited the best degradation efficiency with 92% removal of the pollutant and good stability, with approximately 90% removal of the pollutant after five cycles. The •OH was identified as the dominant reactive species. This work provides a reasonable resource utilization of iron-containing sludge.

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Section: Introductionmentioning

confidence: 99%