Tags

Type your tag names separated by a space and hit enter

Adsorption of herbicides on coal fly ash from aqueous solutions.
J Hazard Mater. 2009 Aug 30; 168(1):233-7.JH

Abstract

Development of low cost adsorbent for pesticide retention is an important area of research in environmental sciences. The present study reports the sorption potential of coal fly ash, a waste from power stations, for removal of metribuzin, metolachlor and atrazine from water. Batch sorption method was used to study the sorption of herbicides from water. The amount of herbicides sorbed increased with increase in the amount of fly ash in the suspension. The maximum capacity of the fly ash to adsorb metribuzin, metolachlor and atrazine was found to be 0.20, 0.28 and 0.38 mg/g by Freundlich equation and 0.56, 1.0 and 3.33 mg/g by Langmuir equation. Freundlich adsorption equation better explained the results of herbicides sorption in fly ash as regression coefficient (R(2)) values were higher from Freundlich equation than the Langmuir equation. Adsorption isotherms were L-type suggesting that the herbicide sorption efficiency of fly ash depend on the initial concentration of herbicide in the solution and maximum removal of herbicide was observed at concentrations less than 10 microg/ml. The results of this study have implications in using the fly ash for removal of these herbicides from industrial and agricultural waste water and can find use as a material in the preparation of biobeds to minimize environmental contamination from pesticide use.

Authors+Show Affiliations

Division of Agricultural Chemicals, Indian Agricultural Research Institute, New Delhi, India. drneerasingh@yahoo.com

Pub Type(s)

Evaluation Study
Journal Article

Language

eng

PubMed ID

19269091

Citation

Singh, Neera. "Adsorption of Herbicides On Coal Fly Ash From Aqueous Solutions." Journal of Hazardous Materials, vol. 168, no. 1, 2009, pp. 233-7.
Singh N. Adsorption of herbicides on coal fly ash from aqueous solutions. J Hazard Mater. 2009;168(1):233-7.
Singh, N. (2009). Adsorption of herbicides on coal fly ash from aqueous solutions. Journal of Hazardous Materials, 168(1), 233-7. https://doi.org/10.1016/j.jhazmat.2009.02.016
Singh N. Adsorption of Herbicides On Coal Fly Ash From Aqueous Solutions. J Hazard Mater. 2009 Aug 30;168(1):233-7. PubMed PMID: 19269091.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Adsorption of herbicides on coal fly ash from aqueous solutions. A1 - Singh,Neera, Y1 - 2009/02/13/ PY - 2008/12/03/received PY - 2009/02/03/revised PY - 2009/02/03/accepted PY - 2009/3/10/entrez PY - 2009/3/10/pubmed PY - 2009/8/6/medline SP - 233 EP - 7 JF - Journal of hazardous materials JO - J Hazard Mater VL - 168 IS - 1 N2 - Development of low cost adsorbent for pesticide retention is an important area of research in environmental sciences. The present study reports the sorption potential of coal fly ash, a waste from power stations, for removal of metribuzin, metolachlor and atrazine from water. Batch sorption method was used to study the sorption of herbicides from water. The amount of herbicides sorbed increased with increase in the amount of fly ash in the suspension. The maximum capacity of the fly ash to adsorb metribuzin, metolachlor and atrazine was found to be 0.20, 0.28 and 0.38 mg/g by Freundlich equation and 0.56, 1.0 and 3.33 mg/g by Langmuir equation. Freundlich adsorption equation better explained the results of herbicides sorption in fly ash as regression coefficient (R(2)) values were higher from Freundlich equation than the Langmuir equation. Adsorption isotherms were L-type suggesting that the herbicide sorption efficiency of fly ash depend on the initial concentration of herbicide in the solution and maximum removal of herbicide was observed at concentrations less than 10 microg/ml. The results of this study have implications in using the fly ash for removal of these herbicides from industrial and agricultural waste water and can find use as a material in the preparation of biobeds to minimize environmental contamination from pesticide use. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/19269091/Adsorption_of_herbicides_on_coal_fly_ash_from_aqueous_solutions_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(09)00216-7 DB - PRIME DP - Unbound Medicine ER -