Advanced Oxidation Processes (AOPs) for Removal of Pesticides from Aqueous Media

Quiróz, Marco A.; Bandala, Erick R.; Martínez‐Huitle, Carlos A.

doi:10.5772/13597

Cited by 15 publications

(9 citation statements)

References 297 publications

(205 reference statements)

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“…Homogeneous photocatalysis refers to those photocatalytic processes where the reactants and the photocatalysts exist in the same phase during the reaction (Quiroz et al 2011). The most commonly used homogeneous photocatalysts include ozone and photo-Fenton systems (Fe 2?…”

Section: Physical and Chemical Remediation Strategiesmentioning

confidence: 99%

“…Heterogeneous photocatalysis degradation concept involves the use of a solid semiconductor (e.g., metallic oxides and sulfur such as TiO 2 , ZnO, CdS, ZnS) to generate a colloidal suspension stable under radiation to stimulate a reaction in the solid-liquid (or solid-gas) interface, and charge transference occurs along the interface to balance chemical potentials between the two faces (Quiroz et al 2011). The term heterogeneous refers to the fact that the Pelizzetti et al (1993) Environ Chem Lett contaminants are present in the aqueous phase, while the catalyst is in the solid phase.…”

Section: Physical and Chemical Remediation Strategiesmentioning

confidence: 99%

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Chlorpyrifos: pollution and remediation

2015

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The widespread use of pesticides in modern agriculture is of increasing concern due to environmental contamination and subsequent biodiversity loss. Chlorpyrifos is a toxic organophosphate pesticide. Repeated applications of chlorpyrifos modify the soil microbial community structure and pose potential health risks to the other nontargets. Chlorpyrifos has been reported as the second most commonly detected pesticide in food and water. Extensive use of chlorpyrifos in agriculture and persistence in the environment have raised public concern and demand for safe technologies to overcome the pollution and toxicity problems. Here, we review pollution and toxicity issues associated with chlorpyrifos use and discuss strategies to solve pesticide contamination. Chlorpyrifos, previously shown to be resistant to enhanced degradation, has now been proved to undergo enhanced microbe-mediated decay. Here, special emphasis is given to degradation methods such as ozonation, Fenton treatment, photodegradation, and advanced oxidation processes along with microbial degradation. Finally, we focus on degradation process at enzyme and molecular levels which will enable us to elucidate the exact degradative pathway involved in biodegradation.

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Section: Physical and Chemical Remediation Strategiesmentioning

confidence: 99%

Section: Physical and Chemical Remediation Strategiesmentioning

confidence: 99%

Chlorpyrifos: pollution and remediation

2015

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“…The main concept of AOPs in the water treatment process is based on the in-situ generation of highly reactive hydroxyl radicals that indiscriminately oxidize a wide range of recalcitrant organic pollutant for complete mineralization of organic contaminants to carbon dioxide, water and mineral salts and capable of transforming the compound of pesticide into more biodegradable species [31,32]. Hydroxyl radicals can be produced from different pathways using a combination of oxidants, catalysts and ultraviolet irradiation and this makes the classification of AOPs based on the source of generation of hydroxyl (OH) radicals [33]. Table 4 showed some of the combinations of AOPs.…”

Section: Pesticide-contaminated Water Treatment Method-advanced Oxidamentioning

confidence: 99%

“…This is mainly due to the inefficient removal of bulk chemical oxygen demand (COD) by AOPs to a level below the regulation standard for some recalcitrant pesticide compounds [29,34,35]. An article by Quiroz et al also documented the extensive use of AOPs to treat pesticide-contaminated water [33].…”

Section: Pesticide-contaminated Water Treatment Method-advanced Oxidamentioning

confidence: 99%

Pesticides in Drinking Water—A Review

Syafrudin

Kristanti

Yuniarto

et al. 2021

IJERPH

320

162

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The ubiquitous problem of pesticide in aquatic environment are receiving worldwide concern as pesticide tends to accumulate in the body of the aquatic organism and sediment soil, posing health risks to the human. Many pesticide formulations had introduced due to the rapid growth in the global pesticide market result from the wide use of pesticides in agricultural and non-agricultural sectors. The occurrence of pesticides in the water body is derived by the runoff from the agricultural field and industrial wastewater. Soluble pesticides were carried away by water molecules especially during the precipitation event by percolating downward into the soil layers and eventually reach surface waters and groundwater. Consequently, it degrades water quality and reduces the supply of clean water for potable water. Long-time exposure to the low concentration of pesticides had resulted in non-carcinogenic health risks. The conventional method of pesticide treatment processes encompasses coagulation-flocculation, adsorption, filtration and sedimentation, which rely on the phase transfer of pollutants. Those methods are often incurred with a relatively high operational cost and may cause secondary pollution such as sludge formation. Advanced oxidation processes (AOPs) are recognized as clean technologies for the treatment of water containing recalcitrant and bio-refractory pollutants such as pesticides. It has been adopted as recent water purification technology because of the thermodynamic viability and broad spectrum of applicability. This work provides a comprehensive review for occurrence of pesticide in the drinking water and its possible treatment.

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“…The advanced oxidation processes comprises a set of techniques such as UV/H 2 O 2 , UV/TiO 2 , ozone-based process, Fenton and photo-Fenton (22)(23)(24). These techniques, under certain conditions, could transform the majority of organic contaminants into carbon dioxide, water and inorganic ions as a result of oxidation reactions, which involve the hydroxyl radical (HO˙) as the main oxidant species (22,24).…”

Section: Introductionmentioning

confidence: 99%

Photo‐Fenton and Riboflavin‐photosensitized Processes of the Isoxaflutole Herbicide

Gatica

Possetto

Reynoso

et al. 2018

Photochem & Photobiology

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The proherbicide Isoxaflutole (IXF) hydrolyzes spontaneously to diketonitrile (DKN) a phytotoxic compound with herbicidal activity. In this work, the sensitized degradation of IXF using Riboflavin (Rf), a typical environmentally friendly sensitizer, Fenton and photo‐Fenton processes has been studied. The results indicate that only the photo‐Fenton process produces a significant degradation of the IXF. Photolysis experiments of IXF sensitized by Riboflavin is not a meaningful process, IXF quenches the Rf excited triplet (3Rf*) state with a quenching rate constant of 1.5 · 107 m−1 s−1 and no reaction is observed with the species O2(1Δg) or O2·− generated from 3Rf*. The Fenton reaction produces no changes in the IXF concentration. While the photo‐Fenton process of the IXF, under typical conditions, it produces a degradation of 99% and a mineralization to CO2 and H2O of 88%. A rate constant value of 1.0 × 109 m−1 s−1 was determined for the reaction between IXF and HO˙. The photo‐Fenton process degradation products were identified by UHPLC‐MS/MS analysis.

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Advanced Oxidation Processes (AOPs) for Removal of Pesticides from Aqueous Media

Cited by 15 publications

References 297 publications

Chlorpyrifos: pollution and remediation

Chlorpyrifos: pollution and remediation

Pesticides in Drinking Water—A Review

Photo‐Fenton and Riboflavin‐photosensitized Processes of the Isoxaflutole Herbicide

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