Natural chelating agents from olive mill wastewater to enable photo-Fenton-like reactions at natural pH

Ruíz-Delgado, A.; Roccamante, Melina; Oller, Isabel; Agüera, Ana; Malato, S.

doi:10.1016/j.cattod.2018.10.051

Cited by 29 publications

(7 citation statements)

References 22 publications

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“…In this sense, special interest has been given to wastewaters generated from industrial processes and which could be a potential source of NOM to be used as iron complexing agents, such as olive mill wastewater. However, comparable removal of CECs using NOM or Fe 3+ -EDDS (>80 %) as complexing agents were only reached at pH 5 ( Davididou et al, 2019 ; García-Ballesteros et al, 2018 ; Ruíz-Delgado et al, 2019 ). Prada-Vásquez et al (2021) presented strategies for the elimination of CECs via photo-Fenton process using Ibero-American effluents as NOM sources.…”

Section: Predicting Challenges To Be Faced During Post-treatment Of A...mentioning

confidence: 98%

Challenges on solar oxidation as post-treatment of municipal wastewater from UASB systems: Treatment efficiency, disinfection and toxicity

Rodrigues-Silva

Starling

Amorim

2022

Science of The Total Environment

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Section: Predicting Challenges To Be Faced During Post-treatment Of A...mentioning

confidence: 98%

Challenges on solar oxidation as post-treatment of municipal wastewater from UASB systems: Treatment efficiency, disinfection and toxicity

Rodrigues-Silva

Starling

Amorim

2022

Science of The Total Environment

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“…Hay que tener en cuenta que dicha aplicación exigiría un ajuste mínimo del pH alrededor de 4 hasta un pH compatible con el riego, simplemente mezclando el agua tratada con agua natural [18]. El principal objetivo del proyecto NAVIA, financiado por el Ministerio de Ciencia, Innovación y Universidades del Gobierno Español, es el estudio y análisis de nuevas tecnologías basadas en Procesos Avanzados de Oxidación solares para el tratamiento de aguas residuales urbanas a escala planta piloto.…”

Section: Líneas Y Proyectos De Investigaciónunclassified

Tratamiento solar de aguas en la Plataforma Solar de Almería (CIEMAT, España): Integración de tecnologías para la regeneración de aguas residuales y producción fotocatalítica de hidrogeno

Alberola¹,

Polo-López²,

Malato³

et al. 2022

Rev. Ing_Nova

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Uno de los efectos más impactantes derivados del Cambio Climático es el incremento de la temperatura así como la consecuente escasez hídrica que sufren algunos países a nivel mundial. De forma paralela, aquellas zonas del planeta que tienen abundancia de agua, sin embargo, presentan una muy mala calidad de la misma, se ven obligadas a aplicar tratamientos específicos dependiendo del uso final de dicho recurso natural. Además, hay que sumar el hecho de que el crecimiento exponencial de la población mundial lleva a la humanidad a la necesidad de aumentar el consumo de agua para mantener la sociedad del bienestar en algunos países, o simplemente, garantizar la provisión de alimentos y energía a dicha creciente población. Frente a este trágico panorama surge la necesidad de investigar y desarrollar nuevas tecnologías y/o combinación de técnicas ya conocidas para la generación de nuevas fuentes de agua. En este sentido, la Unidad de investigación de Tratamiento Solar de Aguas en la Plataforma Solar de Almería (PSA), centro perteneciente al CIEMAT (Tabernas, Almería, España), lleva más de 30 años investigando la aplicación de tecnologías solares al tratamiento de aguas residuales urbanas e industriales para su posterior reutilización. Además, entre las líneas de investigación que se desarrollan en este grupo cabe destacar aquella enfocada en la producción fotocatalítica de hidrógeno como alternativa a los combustibles fósiles que se lleva a cabo a escala planta piloto de forma única e innovadora.

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“…Such complexes can interact with the hydrogen peroxide to produce other degrading species (e.g., hydroperoxyl radical, Eq. 12, (Ruíz-Delgado et al 2019)). Besides, it is well-known that polyphenols can reduce ferric ions to ferrous ions (Fig.…”

Section: Performance Of Spf In Presence Of Cofe Cane and Copementioning

confidence: 99%

“…In turn, iron complexation with EDDS represents additional costs to the process by the purchasing of such reagent. Thus, to overcome these issues, natural substances polyphenols-rich have been recently evaluated (Ruíz-Delgado et al 2019;Prada-Vásquez et al 2020). Also, current works are focused on the search for non-toxic and biodegradable chelating compounds, which must be environmentally sustainable and inexpensive to propose a large-scale photo-Fenton process at nearneutral pH (Klamerth et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Improvement of solar photo-Fenton by extracts of amazonian fruits for the degradation of pharmaceuticals in municipal wastewater

Losada

Santanilla-Calderón

Serna-Galvis

et al. 2021

Environ Sci Pollut Res

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Extracts of copoazu (Theobroma gramdiflorum), canangucha (Maurita Flexuosa), and coffee (coffea arabica) were explored as enhancers of the solar photo-Fenton process to eliminate acetaminophen, sulfamethoxazole, carbamazepine, and diclofenac. The process performance, at pH 6.2 and 5 mg L -1 of iron without the extracts, has a very limited action (~35% of the pollutants degradation at 90 min of treatment) due to the iron precipitation. Interestingly, the extracts addition increased the soluble iron forms but only copoazu extract improved the pollutants degradation (~95% of elimination at 90 min of the process action). The copoazu extract acted as a natural complexing agent, maintaining the soluble iron up to 2 mg L -1 even after 90 min, and consequently enhancing the pollutants degradation. The effect of copoazu extract dose on the process performance was also assessed, finding that an iron: copoazu extract molar ratio equal to 1:0.16 was the most favorable condition. Then, the process improved by copoazu extract was applied to municipal wastewater.Remarkably, the process led to ~90% of total pharmaceuticals degradation at 20 min of treatment. This work evidences the feasibility of amazonian fruits extracts to improve the solar photo-Fenton process to degrade pharmaceuticals in aqueous matrices at near-neutral pH.

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Natural chelating agents from olive mill wastewater to enable photo-Fenton-like reactions at natural pH

Cited by 29 publications

References 22 publications

Challenges on solar oxidation as post-treatment of municipal wastewater from UASB systems: Treatment efficiency, disinfection and toxicity

Challenges on solar oxidation as post-treatment of municipal wastewater from UASB systems: Treatment efficiency, disinfection and toxicity

Tratamiento solar de aguas en la Plataforma Solar de Almería (CIEMAT, España): Integración de tecnologías para la regeneración de aguas residuales y producción fotocatalítica de hidrogeno

Improvement of solar photo-Fenton by extracts of amazonian fruits for the degradation of pharmaceuticals in municipal wastewater

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