[Effect of surfactant on sorption of polar organic compounds in sediment].
Partition characters of phenol, aniline and p-nitrophenol in sediment-anionic surfactant sodium dodecylbenzene sulfonate(SDBS) system were researched. The results indicated that that the sediment-water partition coefficients K of aniline and p-nitrophenol increased when the initial concentrations were set at 200 mg/L and 1200 mg/L for SDBS. The positive relation was found between partition enhancement and the KOW the of the organic compounds. But the K of phenol was different from that of aniline and p-nitrophenol in SDBS system with initial concentration set for 1200 mg/L and it was lower than that in pure water. The data showed that in sodium dodecyl sulfate (SDS), Triton X-100 (TX100) and Brij30 systems respectively, the sorption of phenol on the sediment was enhanced by surfactants below their critical micelle concentration(CMCs), but it was diminished above the surfactant CMCs.
Shen
Xueyou
X
Department of Environmental Science, Zhejiang University, Hangzhou 310028, China.
Ma
Zhanyu
Z
Chen
Ping
P
Zhu
Lifeng
L
Fang
Jing
J
D000327:Adsorption; D019015:Geologic Sediments / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D008823:Micelles; D009930:Organic Chemicals / Q000737:chemistry*; D013501:Surface-Active Agents / Q000737:chemistry*
D008823:Micelles; D009930:Organic Chemicals; D013501:Surface-Active Agents