Fenton oxidation of pesticide methyl parathion in aqueous solution: kinetic study of the degradation

Saini, Ramesh Kumar; Mondal, Monoj Kumar; Kumar, Pradeep

doi:10.1002/ep.12473

Cited by 23 publications

(10 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…43 At the same time, due to excessive decomposition of H 2 O 2 , a lot of cOH was generated, which could react with other cOH, as shown in eqn (3), leading to an insufficient quantity of cOH to react with target contaminants, resulting in a decrease in oxidative degradation ability of the Fenton method. 44 cOH + cOH / H 2 O 2…”

Section: Single Factor Experimentsmentioning

confidence: 99%

See 1 more Smart Citation

Treatment of real benzene dye intermediates wastewater by the Fenton method: characteristics and multi-response optimization

et al. 2018

View full text Add to dashboard Cite

show abstract

Section: Single Factor Experimentsmentioning

confidence: 99%

“…The relative surplus of [Fe 2+ ] reacted with the available cOH (eqn (5)), which resulted in the consumption of cOH that had been generated in the system. 44 cOH + organics / products + H 2 O…”

Section: Single Factor Experimentsmentioning

confidence: 99%

Treatment of real benzene dye intermediates wastewater by the Fenton method: characteristics and multi-response optimization

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Hydroxyl radicals can also be produced for the oxidation of organic pesticides at acidic pH using Fenton's reagent, which represents a mixture of hydrogen peroxide and ferrous or ferric ions [12]. Fenton oxidation was investigated to remove methyl parathion, and various parameters (mentioned them) were studied to identify their role in degradation [14]. Fenton oxidation was reported to be able to remove 74-92% of methyl parathion.…”

Section: Conventional Methods Of Pesticide Removalmentioning

confidence: 99%

Role of Microbes and Nanomaterials in the Removal of Pesticides from Wastewater

Roy

Alghamdi

et al. 2022

International Journal of Photoenergy

View full text Add to dashboard Cite

Pesticides are a class of xenobiotic compounds that are recalcitrant and show persistence in the environment for a longer period of time. Research studies have linked their potential for mutagenicity, teratogenicity, and carcinogenicity. The accumulation of pesticides in water sources due to runoff from agricultural lands has posed a serious threat to the biota of the water ecosystem as well as to the human population. Long-term exposure to pesticides can cause neurological disorders, reproductive complications, cancer, immunological, and pulmonary diseases. The use of pesticides has dramatically surged in agricultural as well as nonagricultural practices. Tons of pesticides are applied in the fields, but a limited amount reaches to the target organism while the rest is wasted and gets accumulated in soil or ends up in water sources like groundwater or river, which results in eradication of nontarget organisms. A variety of pesticides are used for pest management, such as organochlorine (DDT), carbamates (carbaryl), organophosphates (malathion), and pyrethroids (pyrethrins). These chemicals are highly toxic to flora and fauna because of their nonbiodegradable and persistence nature. Biomagnification of pesticides usually leads to cause various problems in human beings. Organochlorines like DDT have been banned in many developed countries due to these reasons. Therefore, the removal of pesticides from wastewater and natural water sources is of utmost importance. Conventional methods possess various limitations; therefore, there is a requirement of an alternative method which can efficiently remove these pollutants from the wastewater. In this review, environmental impacts and health-related complications of pesticides and microbial remediation approaches and use of different nanomaterials in the pesticide removal have been discussed.

show abstract

“…In the Fenton and Fenton-like oxidation process, the dosage of Fenton reagent plays a very important role in the degradation of organic matter and the overall cost of the process. [39] In the study, different H 2 O 2 concentrations (10, 25, 50, 75, 100, 150, 200, 300, 400, 500 mg L À 1 ) and different Fe 2 + concentrations (10, 25, 50, 75, 100, 200, 400 mg L À 1 was applied to determine the effect of Fenton reagents on the degradation of RO16. Other conditions were: t 30 min., dye concentration 100 mg L À 1 , pH 3 and Fe 2 + 50 mg L À 1 in H 2 O 2 study, H 2 O 2 100 mg L À 1 in Fe 2 + study.…”

Section: Effect Of Dye Concentrationmentioning

confidence: 99%

A Combined Study on Degradation Mechanism of Reactive Orange 16 through Fenton‐like Process: Experimental Studies and Density Functional Theoretical Findings

2022

View full text Add to dashboard Cite

In this study, the removal efficiency of Reactive orange 16 (RO16) azo dyes from aqueous solution with different Fenton reactions (Fenton/photo‐Fenton/sono‐Fenton/ sono‐photo‐Fenton) were investigated. For optimum conditions, the effects of variables such as H2O2, Fe2+, reaction time, pH and dye concentration on the oxidation process were investigated. In addition, the interaction between Fenton reagents and the dye molecule was revealed by Density Functional Theory (DFT) calculations. Important quantum chemical parameters reflecting the reactivity of the studied dye were calculated. Effective RO16 degradation was achieved by Fenton oxidation at conditions of 100 mg L−1 H2O2, 10 mg L−1 Fe2+, 100 mg L−1 dye concentration, 3 pH and 30 minutes. While the degradation efficiency with Fenton process was 97.77 %, it reached 98.78 %, 98.31 % and 98.22 % when UV−A, UV−B and UV−C lights were applied respectively. In the sono‐Fenton process application, the degradation efficiency was determined as 97.96 %. The degradation of RO16 by sono‐photo‐Fenton was 96.12 %, 96.13 % and 96.83 % under different lamps (UV−A, UV−B and UV−C), respectively. In addition, in the kinetic study, it was determined that each process complies with the zeroth‐order kinetics. To see the nature and power of the interaction between hydroxyl radical and RO16, important quantum chemical parameters of Conceptual Density Functional Theory were calculated and their effects on degradation process were discussed as detailed. Degradation mechanism was highlighted in the light of DFT calculations.

show abstract

Fenton oxidation of pesticide methyl parathion in aqueous solution: kinetic study of the degradation

Cited by 23 publications

References 34 publications

Treatment of real benzene dye intermediates wastewater by the Fenton method: characteristics and multi-response optimization

Treatment of real benzene dye intermediates wastewater by the Fenton method: characteristics and multi-response optimization

Role of Microbes and Nanomaterials in the Removal of Pesticides from Wastewater

A Combined Study on Degradation Mechanism of Reactive Orange 16 through Fenton‐like Process: Experimental Studies and Density Functional Theoretical Findings

Contact Info

Product

Resources

About