Journal ArticleDOI
Removal of mixed pesticides from drinking water system by photodegradation using suspended and immobilized TiO2.
TLDR
During mixed pesticides degradation, the degradation pattern was not similar to that of single pesticide and there was not much change in the rates of degradation in both suspended and immobilized TiO2 systems irrespective of the pesticide.Abstract:
Lindane (1α, 2α, 3β, 4α, 5α, 6β-hexachloro cyclohexane), methyl parathion (O,O-dimethyl-O-4-nitrophenyl phosphorothioate) and dichlorvos (2,2-dichlorovinyl-O-O-dimethyl phosphate) are removed from water individually and as a mixture by photo degradation using suspended and immobilized forms of TiO2 (Degussa P-25). Studies were conducted to optimize the coating thickness of immobilized photo catalyst. The rate of degradation of pesticides was compared in both suspended and immobilized TiO2 systems. Degradation studies of mixed pesticides were carried out with low concentrations (1.0 and 2.5 mg/L) of pesticides. Only three intermediate byproducts such as methyl paraoxon, O,O,O-trimethyl phosphonic thionate and p-nitrophenol were observed during the methyl parathion degradation in suspended, immobilized TiO2 systems and mixed pesticides degradation studies. At the end of the reaction methyl parathion and its by-products were completely degraded. During lindane degradation hexachloro cyclohexane, pentachloro ...read more
Citations
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Journal ArticleDOI
Novel drying and pretreatment methods for control of pesticide residues in fruits and vegetables: A review
TL;DR: In this article , the authors summarize the latest developments in drying technologies and pre-drying treatments for controlling pesticide residues in fruits and vegetables, with emphasis on sun-, oven-, freezing-, vacuum-, and microwave drying technology, as well as non-thermal pretreatment methods such as ultrasound, nonthermal plasma, pulsed electric field (PEF), high hydrostatic pressure (HHP), and irradiation.
Book ChapterDOI
Effective Visible Light Photodegradation of Paraoxon with Pure and Doped TiO 2
TL;DR: In this article, an effective form to degrade paraoxon using titanium dioxide (TiO2) doped with various metals (Al, C, Co, Fe, and Rh) was described.
Response surface methodology based optimization of photocatalytic degradation of 2,4-dichlorophenoxyacetic acid
TL;DR: In this article , a modified TiO 2 catalyst in a glass fabricated photo-catalytic reactor for 2,4-dichlorophenoxyacetic acid degradation was made for a common herbicide in water bodies.
Book ChapterDOI
Nanomaterials for Remediation of Pesticides
TL;DR: Nanomaterials have been considered as effective agents for remediation of contaminants present in the environment as discussed by the authors, and properties of nanoparticles such as high surface area, high reactivity, and effectiveness have mainly contributed to their high efficiency.
References
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Journal ArticleDOI
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Journal ArticleDOI
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Journal ArticleDOI
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