Kinetics and Equilibrium of Simazine Sorption on Soil Colloids.

Slow Sorption Kinetics of Pentachlorophenol on Soil: Concentration Effects

We investigated the sorption kinetics of pentachlorophenol (PCP) on soil at a pH of 4.1 using batch techniques. A multiple spiking methodology was employed to circumvent the solubility limitation of PCP. The ratio of sorbed PCP to solution-phase PCP (S/C) after 2-4 days of equilibration was concentration dependent. It decreased from 90 to 60 L/kg with a 4-fold increase in the total PCP concentr...

Data Analysis of Plutonium Sorption on Colloids in a Minimal Kinetics Model

Effect of dissolved organic matter on ammonium sorption kinetics and equilibrium to Chinese clinoptilolite.

In the in-situ remediation of ammonium (NH4+) in groundwater by a sequential reactive barrier filled with zeolite, it is of great importance to understand the mechanisms of NH4+ sorption to zeolite. In this study, the effect of dissolved natural organic matter on NH4+ sorption to natural Chinese clinoptilolite was studied by batch experiments taking humic acid (HA) as a model substance. The sur...

اثرات ماده آلی محلول بر جذب علف‌کش سیمازین در خاک‌های مختلف

The effects of dissolved organic matter (DOM), derived from compost, on the sorption of simazine by soils were studied using a batch equilibrium technique. Six soils with different organic carbon contents were investigated in this study. Simazine sorption isotherms on soils were described by the linear equation, and the distribution coefficients without DOM (Kd) or with DOM (Kd*) were obtained....

Effects of Soil Organic Matter on the Kinetics and Mechanisms of Pb(II) Sorption and Desorption in Soil

make better predictions about the mobility of contaminants, it is critical that time-dependent metal sorption To improve predictions of the toxicity and threat from Pb contamiand desorption behavior on soil be understood, as well nated soil, it is critical that time-dependent sorption and desorption behavior be understood. In this paper, the sorption and desorption as the mechanism of the sorpt...