Red mud as catalyst for the treatment of pharmaceuticals compounds by advanced oxidation processes – A review

de Sousa Cordeiro, Eloise; Scaratti, Gidiane; de Souza, Darliane Cristina Soares; Nickel, Camilla Daniela Moura; José, Humberto Jorge; de Fátima Peralta Muniz Moreira, Regina; De Noni, Agenor

doi:10.1016/j.enmm.2024.100938

Cited by 2 publications

(2 citation statements)

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“…The main components of RM are SiO 2 , Al 2 O 3 , CaO, Fe 2 O 3 , etc., which is an insoluble residue [87,88]. RM has a high water content and contains alkali, heavy metals, and other harmful components; the pH value can reach more than 11, with strong alkalinity, causing a serious impact on the environment and ecology [22,89,90]. The high soluble alkalinity of red mud makes it difficult to sinter into a strong building material, which is the biggest obstacle to its recycling [91].…”

Section: Red Mudmentioning

confidence: 99%

“…The treatment of RM is primarily focused on its resource utilization. However, the high content of alkaline substances in RM is the main obstacle to its large-scale resource utilization [22]. In recent years, studies have shown that the utilization rate of RM is gradually increasing through de-alkalinization and engineering applications [7,23,24].…”

Section: Introductionmentioning

confidence: 99%

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A Mini Review on Sewage Sludge and Red Mud Recycling for Thermal Energy Storage

Xiong,

Zhang,

Zhao

et al. 2024

Energies

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Sewage sludge and red mud, as common industrial waste, have become a research hotspot in the field of achieving carbon peaking and carbon neutrality, reducing carbon emissions, and solving environmental problems. However, their treatment and disposal have always been a difficult problem in the environmental field. Utilizing these two materials for thermal energy storage can not only improve energy utilization efficiency but also further reduce carbon emissions during their treatment process, providing a new approach for sustainable development in the industrial sector. This article summarizes the research progress for the resource recovery of sewage sludge and red mud for direct thermal energy recovery and composite phase change energy storage. After proper treatment, sludge and red mud can be directly used as energy storage materials. In addition, sludge and red mud can be combined with phase change materials to prepare composite materials with an excellent energy storage performance. This composite has broad application prospects in fields such as solar energy utilization and building energy efficiency. However, there are still some challenges and issues in this resource recovery and utilization, such as potential environmental pollution during the treatment process, the long-term stability of energy storage materials, and cost-effectiveness, which require further research and resolution. The purpose of this paper is to evaluate the potential of sewage sludge and red mud as energy storage materials, to explore their feasibility and advantages in practical applications, and to reveal the research progress, technical challenges, and future development directions of these two materials in the field of thermal energy storage.

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