Optimization of the treatment of sanitary landfill by the ozonization catalysed by modified nanovermiculite in a rotating packed bed

Braga, Washington Luis Moreira; Melo, Diego Henriques Aguiar de; Morais, Daiana; Samanamud, Gisella Rossana Lamas; França, Alexandre Bôscaro; Quintão, Cristiane Medina Finzi; Loures, Carla Cristina Almeida; Urzedo, Ana Paula Fonseca Maia de; Naves, Luzia Lima Rezende; Gomes, José Henrique de Freitas; Naves, Fabiano Luiz

doi:10.1016/j.jclepro.2019.119395

Cited by 20 publications

(6 citation statements)

References 32 publications

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“…Moreira Braga et al [ 130 ] used modified nano-vermiculite in a rotating bed reactor for the catalytic ozonation of sanitary landfill leachate. The rotation of the bed, initial pH, and ozone flow were analyzed through experimental design represented by the central composite design (CCD) and later optimized through the Normal Boundary Intersection (NBI) algorithm.…”

Section: Natural Mineral Catalystsmentioning

confidence: 99%

Clay, Zeolite and Oxide Minerals: Natural Catalytic Materials for the Ozonation of Organic Pollutants

Inchaurrondo

Font

2022

Molecules

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Ozone has been successfully employed in water treatment due to its ability to oxidize a wide variety of refractory compounds. In order to increase the process efficiency and optimize its economy, the implementation of heterogeneous catalysts has been encouraged. In this context, the use of cheap and widely available natural materials is a promising option that would promote the utilization of ozone in a cost-effective water treatment process. This review describes the use of natural clays, zeolites and oxides as supports or active catalysts in the ozonation process, with emphasis on the structural characteristics and modifications performed in the raw natural materials; the catalytic oxidation mechanism; effect of the operating parameters and degradation efficiency outcomes. According to the information compiled, more research in realistic scenarios is needed (i.e., real wastewater matrix or continuous operation in pilot scale) in order to transfer this technology to the treatment of real wastewater streams.

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Section: Natural Mineral Catalystsmentioning

confidence: 99%

Clay, Zeolite and Oxide Minerals: Natural Catalytic Materials for the Ozonation of Organic Pollutants

Inchaurrondo

Font

2022

Molecules

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“…El tratamiento de los lixiviados debe alcanzar unos estándares mínimos, generalmente expedidos por la autoridad ambiental para evitar los daños ecológicos y de la salud poblacional [52]. En los países en desarrollo se han implementado los procesos convencionales físicos, biológicos y/o filtración con membrana, sin embargo, muchas veces no es suficiente [53]. Por lo tanto, es requerido aumentar la reducción de la carga contaminate por medio de métodos avanzados, como lo PAOs [20], entre los cuales, procesos basados en ozono ha sido considerados unos de los más prometedores [3].…”

Section: Ozonización Catalíticaunclassified

Procesos Avanzados De Oxidación Basados En Ozono Como Alternativa De Tratamiento Para Lixiviados De Rellenos Sanitarios

et al. 2021

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Los procesos basados en ozono hacen parte de los Procesos Avanzados de Oxidación que se han aplicado sobre los lixiviados de rellenos sanitarios. Las características altamente tóxicas de los lixiviados de rellenos sanitarios, pueden reducirse por medio de los procesos basados en ozono, los cuales han demostrado alcanzar altas remociones de contaminantes, en especial, de compuestos orgánicos recalcitrantes. En esta revisión se compila información reciente (2015 a 2021) referente a los procesos basados en ozono, donde se ha estudiado la eficacia como tratamiento, se analiza las condiciones óptimas de acuerdo al tipo de lixiviado y al método de tratamiento a emplear. Se identifica la tendencia de implementación como pretratamiento y postratamiento acoplado a procesos convencionales.

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“…1 Conventional treatment techniques such as biological (anaerobic and aerobic methods) and physical/ chemical (flocculation and flotation) processes are not sufficient to fully reduce the environmental hazards associated with leachate. [5][6][7][8] Therefore, novel treatment technologies have been extensively investigated, including advanced oxidation processes (AOPs) and combinations of superoxidants such as H 2 O 2 or O 3 combined with ultrasound (US), electron beam (EB), ultraviolet (UV), catalysts (Fe 2+ ) and photocatalysts (TiO 2 ) to generate hydroxyl radicals (˙OH), [9][10][11][12][13] degrading most of the recalcitrant organic molecules to biodegradable intermediates and even to H 2 O and CO 2 . 14 There are also methods such as membrane filtration (e.g.…”

Section: Introductionmentioning

confidence: 99%

Characterization of rare-earth Gd-doped iron–carbon materials and their effectiveness in treating waste leachate

Zeng

Huang

2022

Environ. Sci.: Water Res. Technol.

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Optimization of the treatment of sanitary landfill by the ozonization catalysed by modified nanovermiculite in a rotating packed bed

Cited by 20 publications

References 32 publications

Clay, Zeolite and Oxide Minerals: Natural Catalytic Materials for the Ozonation of Organic Pollutants

Clay, Zeolite and Oxide Minerals: Natural Catalytic Materials for the Ozonation of Organic Pollutants

Procesos Avanzados De Oxidación Basados En Ozono Como Alternativa De Tratamiento Para Lixiviados De Rellenos Sanitarios

Characterization of rare-earth Gd-doped iron–carbon materials and their effectiveness in treating waste leachate

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