The sorption behavior of complex pollution system composed of aldicarb and surfactant--SDBS.
The behavior of complex pollution system in soil composed of aldicarb, a carbamate pesticide, and sodium dodecylbenzenesulfonate (SDBS), an anionic surfactant, was studied by the experiment of shaking sorption balance. The range of concentration of aldicarb and SDBS was 0.4-5.0 and 1-1000 mg/kg of dried soil, respectively. Linear sorption isotherm was well fitted for these two chemicals. SDBS can decrease the sorption of aldicarb in soil remarkably. While the concentration of SDBS increased from 0 to 1000 mg/kg, the linear sorption coefficient can be decreased by 50%. But aldicarb showed no effect on the sorption of SDBS in experiment. In addition the mechanism of the effect of SDBS on sorption of aldicarb was discussed.
Dai
S
S
College of Environmental Science and Engineering, Nankai University, Tianjin, People's Republic of China. sgdai@public1.tpt.tj.cn
Liu
G
G
Qian
Y
Y
Cheng
X
X
D000327:Adsorption; D000448:Aldicarb / Q000302:isolation & purification*; D001557:Benzenesulfonates / Q000302:isolation & purification*; D007306:Insecticides / Q000302:isolation & purification*; D012989:Soil Pollutants / Q000302:isolation & purification*; D013501:Surface-Active Agents / Q000302:isolation & purification*; D014874:Water Pollutants, Chemical / Q000302:isolation & purification
D001557:Benzenesulfonates; D007306:Insecticides; D012989:Soil Pollutants; D013501:Surface-Active Agents; D014874:Water Pollutants, Chemical; C001114:dodecylbenzenesulfonic acid; D000448:Aldicarb