Heterogeneous Fenton treatment of shale gas fracturing flow-back wastewater by spherical Fe/Al2O3 catalyst

Dong, Pei; Shan, Peipei; Wang, Shuaijun; Ge, Baosheng; Zhao, Chaocheng

doi:10.1007/s11356-023-29687-z

Cited by 1 publication

(1 citation statement)

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“…For example, Pelalak et al investigated the reaction mechanism of multimetallic catalysts in the Fenton process, describing effective methods to enhance the activity, electron transfer rate, and generation of hydroxyl radicals [15]. Dong et al investigated Fe/Al 2 O 3 -loaded catalysts for the degradation of wastewater and proposed an efficient and low-cost solution for Fenton treatment with loaded catalysts [16]. Liu et al investigated the performance of elemental iron-loaded catalysts for the degradation and treatment of sulfamethoxazole wastewater and measured the contributions of adsorption and Fenton oxidation to the degradation rate [17].…”

Section: Introductionmentioning

confidence: 99%

Exothermic Reaction in the Cleaning of Wastewater by a Fe2O3/Coconut Shell Activated Carbon/H2O2 Heterogeneous Fenton-like System

Zhang,

Yan

2024

Sustainability

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Energy utilization in wastewater degradation has important implications for sustainability; however, efficient multiphase Fenton-like catalysts are still needed. In this study, a heterogeneous Fe2O3/coconut shell activated carbon (CSAC) Fenton-like catalyst was prepared and evaluated with respect to degradation performance and exothermic reaction for the treatment of organic wastewater. Fe2O3@CSAC retained the porous morphology of CSAS, and Fe2O3 was uniformly loaded on the surface of CSAS. In the reaction system, the degradation rate of wastewater was higher and a large amount of heat was released; therefore, it could be applied to the energy recovery from wastewater source heat pump technology. The degradation rate of 300 mL of o-phenylenediamine solution with a concentration of 0.04 mol·L−1 was 89.0% under 0.25 mol·L−1 H2O2, 532 g·L−1 Fe2O3@CSAC, pH 7.1, and an initial reaction temperature of 30 °C, elevated to 7.9 °C. These findings clearly demonstrate the degradation performance and exothermic laws of the Fe2O3@CSAC/H2O2 multiphase Fenton-like system.

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Section: Introductionmentioning

confidence: 99%