期刊
CHEMISTRY AND ECOLOGY
卷 35, 期 6, 页码 576-591出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/02757540.2019.1600678
关键词
Activated carbon; Arachis hypogaea; fungicide; remediation; sorption
Sorption characteristics of the Benzimidazole fungicide Carbendazim were assessed in seven different soils using batch equilibrium method and analysed by UV-Vis spectrophotometer. The values of adsorption co-efficient K-d ranged from 14.3 to 39.8 mu g/mL depending upon unique physiochemical properties of soils. Negative values for Gibbs free energy (G) proposed an exothermic and low interaction between Carbendazim and soil samples leading to physiosorption. Statistical analysis showed a negative correlation of soil pH and K-d (R-2= -0.80) and a positive correlation with organic matter (R-2 =0.77). Activated carbon prepared from Arachis hypogaea (peanut shells) by acid activation for Carbendazim removal from soils was characterised by FTIR spectrometry, indicating the change in functional groups. The highest percentage removal observed was 70% in 5ppm initial Carbendazim concentration while 65% in 7.5ppm concentration. This method can be implied in agricultural soils as an efficient and cheap technique for removing the hazardous pesticides from the environment.
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