Degradation of organophosphorus pesticide diazinon using activated persulfate: Optimization of operational parameters and comparative study by Taguchi's method

Rasoulifard, Mohammad Hossein; Akrami, Mina; Eskandarian, Mohammad Reza

doi:10.1016/j.jtice.2015.05.014

Cited by 54 publications

(11 citation statements)

References 43 publications

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“…Recently, Mousset et al evi denced, using electro Fenton process, a fourth attack mode of % OH through ipso substitution of the halogen atom [13]. [33,34].…”

Section: Introductionmentioning

confidence: 99%

Study of the degradation of an organophosphorus pesticide using electrogenerated hydroxyl radicals or heat-activated persulfate

Aimer

Benali

Serrano

2019

Separation and Purification Technology

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The use of pesticides and their release into the natural environment constitutes a direct threat for the environment and the living beings especially the human health. Consequently, the development of technics to detoxify the pesticide residues to reduce at least areas and contaminated matrix is needed. In the present work, a comparative study was performed on the chemical oxidation of an organophosphorus compound, the dimethoate (DIM), with sulfate radicals and hydroxyl radicals. Both oxidants are generated in situ, the sulfate radicals were produced by heat-activation of persulfate (PS) and hydroxyl radicals were generated by water electrooxidation using a boron doped diamond anode (BDD). For both cases, the target molecule has disappeared but the selective reaction of sulfate radicals with organics led to the production of intermediates which are less biodegradable than DIM since the ratio between the biological oxygen demand (BOD 5) and the chemical oxygen demand (COD) has been divided by 2 within the first hour of the process. Whereas the BOD 5 /COD ratio during the electrochemical oxidation of DIM via hydroxyl radicals showed that it was possible to render the solution biodegradable without reaching a complete mineralization. However, it has been shown that the presence of chlorides in the solution must be avoided because of the formation of undesired organochlorides during the process.

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“…Recently, Mousset et al evi denced, using electro Fenton process, a fourth attack mode of % OH through ipso substitution of the halogen atom [13]. [33,34].…”

Section: Introductionmentioning

confidence: 99%

Study of the degradation of an organophosphorus pesticide using electrogenerated hydroxyl radicals or heat-activated persulfate

Aimer

Benali

Serrano

2019

Separation and Purification Technology

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“…A lower extent of adsorption was observed on the nanoparticles' surface, at high pHs, as both diazinon and the Fe 3 O 4 -WO 3 -APTES nanoparticles are negatively charged and, in turn, the electrostatic repulsion happens between them [8,28]. As mentioned above, the highest performance was seen at the pH value of 7; therefore, all other experiments were carried out at this level.…”

Section: E昀fects Of Operational Parameters On the Photocatalytic Degrmentioning

confidence: 99%

“…After that, a downward trend was seen in efficiency. The main reasons for this improvement in removal efficiency are as follows: when the dose of the nanocatalyst is raised, there will be more diazinon molecules that can be adsorbed on the surface of the catalyst and the density of catalyst particles increases in the area of illumination [8,9,28,29]. In the case of catalyst doses higher than 0.25 g.L -1 , a downward trend was experienced in diazinon removal as light scattering decreasing the aggregation and the activity of the catalyst particles takes place.…”

Section: E昀fect Of Photocatalyst Dosagementioning

confidence: 99%

Using amino-functionalized Fe3O4-WO3 nanoparticles for diazinon removal from synthetic and real water samples in presence of UV irradiation

Mohagheghian

Ayagh

Godini

et al. 2017

Journal of Advanced Oxidation Technologies

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Abstract:In this research, photocatalytic degradation of diazinon by amino-functionalized Fe 3 O 4 -WO 3 nanoparticles under UV irradiation was investigated with variation of pH, nanocatalyst dose, initial diazinon concentration, different purging gases, H 2 O 2 concentration, and type of organic compounds. Under optimal conditions: pH=.23 % of the insecticide was removed after 120 min. A decrease was observed in the removal efficiency of diazinon in the presence of different purging gases and organic compounds. Based on the three kinetic models developed in this study, it was found that the removal of diazinon followed the first order kinetic. Also, application of the UV/amino-functionalized Fe 3 O 4 -WO 3 nanoparticles both increased the performance and decreased electric power consumption. However, 86.17 % of diazinon in real water samples was removed under the optimized conditions. Furthermore, the photocatalytic activity was kept after five successive cycles.

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“…Diazinon (DZN,O,O-DiethylO-[4-methyl-6-(propan-2-yl)pyrimidin-2yl]phosporothioate) is an organophosphate pesticide (OP) used as insecticide in agricultural, livestock, and domestic activities (CICOPLAFEST, 2004;EPA, 2006;Rasoulifard et al, 2015). This pesticide inhibits the activity of acetylcholinesterase enzyme (AChE), which leads to the accumulation of acetylcholine (ACh) neurotransmitter at axon terminals of organisms exposed to this type of insecticides.…”

Section: Introductionmentioning

confidence: 99%

Diazinon acute exposure induces neutrophil extracellular traps in Nile tilapia (Oreochromis niloticus)

Covantes-Rosales

Toledo-Ibarra

González-Navarro

et al. 2020

Food and Agricultural Immunology

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Diazinon is an organophosphate insecticide commonly used worldwide to chemically control different organisms considered as pests. In the past years, diazinon has been described to have immunotoxic effects in several species. Nile tilapia is a teleost fish with an ecological and economic importance, which is also one of the fishes with the highest consumption around the world. The aim of this study was to evaluate the production of neutrophil extracellular traps (NETs) from fish Nile tilapia (Oreochromis niloticus) exposed to diazinon (0.97, 1.95, and 3.91 mg/L) for 6 and 24 h. The results obtained indicate that the exposure to diazinon per se increases NETs production. Therefore, these results could be involved in the understanding of the inflammatory process induced by exposure to pesticides.

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Degradation of organophosphorus pesticide diazinon using activated persulfate: Optimization of operational parameters and comparative study by Taguchi's method

Cited by 54 publications

References 43 publications

Study of the degradation of an organophosphorus pesticide using electrogenerated hydroxyl radicals or heat-activated persulfate

Study of the degradation of an organophosphorus pesticide using electrogenerated hydroxyl radicals or heat-activated persulfate

Using amino-functionalized Fe3O4-WO3 nanoparticles for diazinon removal from synthetic and real water samples in presence of UV irradiation

Diazinon acute exposure induces neutrophil extracellular traps in Nile tilapia (Oreochromis niloticus)

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