Adsorption of Pesticides on Soil Components

Draoui, Khalid; Denoyel, Renaud; Chgoura, M.; Rouquérol, J.

doi:10.1007/bf03341460

Cited by 7 publications

(5 citation statements)

References 12 publications

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“…46 The clay fraction mainly contains secondary clay minerals, coagels of iron aluminum oxide and silicic acid, amorphous compounds and organic and organomineral compounds clays are effective natural adsorbents due to their small particle sizes, lamellar structures and negatively charged surfaces. 47 Consequently, it was found that quartz and calcite play a smaller role than clay minerals for adsorption of atrazine isoproturon, 2,4-D and bentazone. 48 Therefore, the magnitude of the adsorption depends on the type of pesticide, the type of clay mineral and the specific surface of the mineral.…”

Section: Discussionmentioning

confidence: 99%

Effect of particles size on adsorption isotherm of chlorantraniliprole, dinotefuran, bispyribac-sodium, and metribuzin into sandy loam soil

Fouad,

Aly,

El-Aswad

et al. 2024

10.5267/j.ccl

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The efficiency of different sorbents (bulk soil, sand, silt, clay and humic acid-HA) for chlorantraniliprole (CAP), dinotefuran (DNF), bispyribac-sodium (BPS), and metribuzin (MBZ) adsorption was described and compared. The adsorption of CAP, DNF, BPS and MBZ were significantly greater on clay and HA fractions than the bulk soils. Also, the tested pesticides sorption was greater on HA fraction compared to clay fraction except in the case of BPS. The mass unit of bulk soil adsorbed of CAP, DNF, BPS and MBZ approximately 15, 20, 10 and 5 % of the same of HA and 40, 60, 95 and 35 % of that of clay fraction, respectively. The actual amounts adsorbed on bulk soil ranged from (88.63 to 93.93 %) of the calculated amounts adsorbed on all soil components indicating high efficiency of the tested soils to adsorb tested pesticides. All adsorption data fitted well to the linear Freundlich equation. The adsorption of tested pesticides in soil and their different constituents is S-type according to 1/n (except some cases).

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Section: Discussionmentioning

confidence: 99%

Effect of particles size on adsorption isotherm of chlorantraniliprole, dinotefuran, bispyribac-sodium, and metribuzin into sandy loam soil

Fouad,

Aly,

El-Aswad

et al. 2024

10.5267/j.ccl

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“…The efficiency of PQ removal can be explained by the theory of adsorption; an appropriate adsorption efficiency occurs when the pore diameter of the adsorbent is larger than 1.7 to 3.0 times of the adsorbate [60]. The dimension of the PQ was 1 34 nm × 0 36 nm [61,62]. Although MB-01-850 has a pore width of 2.60 nm (Figure S3), approximately 2 times larger than PQ, therefore, this absorbent was more effective for PQ adsorption than B-00-850 because it had only a microporous structure, roughly the same size as PQ.…”

Section: Equilibrium Isotherms Thermodynamics and Kineticmentioning

confidence: 99%

Efficient Removal of Paraquat Pollutants Using Magnetic Biochar Derived from Corn Husk Waste: A Sustainable Approach for Water Remediation

Damdib,

Siyasukh,

Vanichsetakul

et al. 2023

Adsorption Science & Technology

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Due to the widespread production of maize, the waste created by this crop has become a serious concern. This study applied the concept of waste circulation to the production of magnetic biochar from corn husk waste to remediate paraquat-contaminated water. Magnetic biochar (MB) was produced by impregnating maize husks with iron and carbonizing the residue in a nitrogen environment. Carbonized MB at the temperature of 850°C (MB-01-850) exhibited a combination of microporous and mesoporous structures ( V meso = 0.30 c m 3 / g , V micro = 0.12 c m 3 / g ), while biochar created only a microporous structure ( V micro = 0.11 c m 3 / g ). According to the findings, Fe(NO3)3 significantly affected the increase in mesopore formation after carbonization. In addition, biochar exhibits excellent magnetic responsiveness. MB-01-850 reached equilibrium within approximately 20 min in synthetic water. Batch adsorption studies showed that MB-01-850 had maximum adsorption capacities ( Q 0 ) of 34.97 mg/g and 31.63 mg/g for synthetic and natural water, respectively. The unmodified biochar (without mesopores) had a Q 0 of 4.08 mg/g. This indicates that the presence of mesopores improves the effectiveness of paraquat adsorption. Additionally, the adsorption performance of magnetic biochar exhibited no statistically significant variance when tested under natural water conditions. Furthermore, magnetic biochar demonstrates impressive regeneration capacity, allowing it to be regenerated almost entirely for a minimum of four cycles using a sodium hydroxide (NaOH) solution with a concentration equal to or greater than 0.5 M.

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“…The same behaviour is encountered with ionic surfactants, but the sign and the values of the enthalpies vary from a system to Figure 6. Adsorption enthalpy at zero coverage as a function of ethoxy number for non-ionic surfactants (data from [18]). On the right-hand axis, the values are divided by the ethoxy number.…”

Section: Applicationsmentioning

confidence: 99%

“…Calorimetry helps in selecting the most efficient pore size distribution or surface chemistry [8,27]. Secondly, in the difficult problem of the interaction of pollutants with soil components, the determination of adsorption enthalpies can help in distinguishing the pollutant-clay interaction from the pollutant-humic acid interaction [18]. In fact, the value of the adsorption enthalpy is not often used directly in an application, but it always improves the understanding of the phenomenon under study.…”

Section: Conclusion and Applicationsmentioning

confidence: 99%

In situ methods for studying adsorbed phases at the solid/liquid interface: microcalorimetry and ellipsometry

Denoyel¹

2002

Comptes Rendus. Géoscience

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The applications of calorimetric and ellipsometric methods to the understanding of adsorption phenomena occurring at the solid-liquid interface are presented with examples in the field of surfactant adsorption. The various experimental approaches are presented and compared, i.e., immersion calorimetry, titration calorimetry and liquid flow calorimetry. It is shown how they can be used to follow, in situ, the building steps of the surfactant adsorbed layer. On the other hand, ellipsometry allows the adsorption isotherm, the adsorption kinetics as well as the thickness of the adsorbed layer to be determined on well-defined flat surfaces.

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Adsorption of Pesticides on Soil Components

Cited by 7 publications

References 12 publications

Effect of particles size on adsorption isotherm of chlorantraniliprole, dinotefuran, bispyribac-sodium, and metribuzin into sandy loam soil

Effect of particles size on adsorption isotherm of chlorantraniliprole, dinotefuran, bispyribac-sodium, and metribuzin into sandy loam soil

Efficient Removal of Paraquat Pollutants Using Magnetic Biochar Derived from Corn Husk Waste: A Sustainable Approach for Water Remediation

In situ methods for studying adsorbed phases at the solid/liquid interface: microcalorimetry and ellipsometry

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