Sorption Kinetics Study of Monocrotophos (MCP) Pesticide in Unsterilized Soil
Chemical Science International Journal · pp. 183–192 · Published 8 May 2015
10.9734/ACSJ/2015/17495Abstract
Sorption Kinetics of monocrotophos in sandy soil was studied with the aim to establish its fate in the soil. The soil used was characterized with respect to soil pH, organic carbon, moisture, silt, clay and sand content. The sorption kinetic studies were carried out by observing the disappearance of monocrotophos in solution for several days. The kinetic studies showed that sorption of monocrotophos followed first order kinetics and were measured in terms of two processes namely; fast and slow sorption. The amount of pesticide sorbed by soil was found to increase with time and the values showed that the soil has low capacity to sorbe or retain monocrotophos when applied. During this time, rate constant for the disappearance from solution of monocrotophos were found to be 18.2× 100 s-1 and 0.248 ×101 s-1 respectively in fast and slow sorption processes. While, the rates for fast sorption and slow sorption were found to be 5.3885 s-1 and 0.0315 s-1.
Cited by 1
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