Simultaneous Removal of Pesticides from Water by Rice Husk Ash: Batch and Column Studies
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Title |
Simultaneous Removal of Pesticides from Water by Rice Husk Ash: Batch and Column Studies
Not Available |
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Creator |
Ajoy Saha, V. T. Gajbhiye, Suman Gupta, Rajesh Kumar, Rakesh Kumar Ghosh
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Subject |
adsorption, column elution, kinetics, water treatment
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Description |
Not Available
The present study evaluated rice husk ash (RHA) as an adsorbent for simultaneous removal of a mixture of seven different pesticides (alachlor, metolachlor, chlorpyriphos, fipronil, a-endosulfan, b-endosulfan, and p,p0-DDT) and two metabolites (p,p0-DDE and endosulfan sulfate) from water. The adsorbent RHA was prepared in the laboratory and characterized by techniques such as X-ray diffraction spectroscopy, Fourier transform infrared spectroscopy, and scanning electron microscopy/energy-dispersive X-ray spectrometry. Adsorption kinetics were well described by the pseudo-second-order kinetic model. The Freundlich isotherm model fitted the equilibrium data better than the Langmuir model, and the maximum sorption capacity varied from 0.078 to 0.166 mg/g. The column elution studies showed that 10 L of mixed pesticide-contaminated water (0.05 mg/L) can be treated with only 10 g of RHA at a removal efficiency of 90%. The results implied that RHA can be used as a low-cost, easily available, and efficient adsorbent for the simultaneous removal of pesticides from contaminated water Not Available |
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Date |
2021-06-01T07:14:56Z
2021-06-01T07:14:56Z 2014 |
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Type |
Journal
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Identifier |
Not Available
Not Available http://krishi.icar.gov.in/jspui/handle/123456789/47086 |
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Language |
English
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Relation |
Not Available;
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Publisher |
Wiley
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