Approaching a discussion on the detachment of chlorpyrifos in contaminated water using different leaves and peels as bio adsorbents

Joshi, V and Jindal, MK and Sar, SK (2023) Approaching a discussion on the detachment of chlorpyrifos in contaminated water using different leaves and peels as bio adsorbents. In: Scientific Reports, 13 (1).

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Abstract

The emerging contaminant chlorpyrifos, an insecticide, is generally used in agricultural fields to control termites, ants, and mosquitoes for the proper growth of feed and food crops. Chlorpyrifos reaches water sources for multiple reasons, and people who use water from nearby sources is exposed to chlorpyrifos. Due to its overuse in modern agriculture, the level of chlorpyrifos in water has drastically grown. The present study aims to address the problem arising from the utilization of chlorpyrifos-contaminated water. Natural bioadsorbents Bael, Cauliflower, Guava leaves Watermelon, and lemon peel were employed to remove chlorpyrifos from contaminated water under specific conditions of various factors, such as initial adsorbate concentration, dose of bioadsorbent, contact time, pH, and temperature. Maximum removal efficiency of 77 was obtained with lemon peel. The maximum adsorption capacity (qe) was 6.37 mg g�1. The kinetic experiments revealed that the pseudo second order model (R2 = 0.997) provided a better explanation of the mechanism of sorption. The isotherm showed that chlorpyrifos adsorbed in lemon peel in a monolayer and was best suited by the Langmuir model (R2 = 0.993). The adsorption process was exothermic and spontaneous, according to thermodynamic data. © 2023, The Author(s).

Item Type:	Journal Article
Publication:	Scientific Reports
Publisher:	Nature Research
Additional Information:	The copyright for this article belongs to authors.
Keywords:	chlorpyrifos; insecticide, adsorption; animal; crop; human; plant leaf, Adsorption; Animals; Chlorpyrifos; Crops, Agricultural; Humans; Insecticides; Plant Leaves
Department/Centre:	Division of Mechanical Sciences > Divecha Centre for Climate Change
Date Deposited:	29 Nov 2024 10:50
Last Modified:	29 Nov 2024 10:50
URI:	http://eprints.iisc.ac.in/id/eprint/85349

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