Reactions and transport modeling of surfactant and anthracene in the soil flushing process

Autor:	Minwen Liu, Dipak Roy, Guang-Te Wang
Rok vydání:	1995
Předmět:	Anthracene Langmuir Soil chemistry Human decontamination complex mixtures Soil contamination chemistry.chemical_compound chemistry Pulmonary surfactant Chemical engineering Environmental chemistry Soil water medicine Flushing medicine.symptom Waste Management and Disposal
Zdroj:	Waste Management. 15:423-432
ISSN:	0956-053X
DOI:	10.1016/0956-053x(95)00051-z
Popis:	Soil flushing using surfactants is a promising alternative to the pump-and-treat method of removing hydrophobic organic compounds. The interactions and transport modeling of the surfactant and chemicals in soil were studied by batch and column experiments. Sodium dodecylsulfate (SDS), an anionic surfactant, and anthracene, a hydrophobic organic, were chosen as a representative surfactant and chemical for the soil flushing process. The equilibrium model was observed to predict the SDS breakthrough in soil columns. Mobilization of anthracene from soil matrices by flushing medium containing SDS was noted to be a rate-limiting process. A non-equilibrium model was found to be suitable for the prediction of anthracene breakthrough. The quasi-equilibrium isotherm between anthracene in SDS solution and the soil appeared to be of the Langmuir type.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::48a64309b438b3c81e86dc87bc23d447 https://doi.org/10.1016/0956-053x(95)00051-z Zobrazit plný text záznamu Full Text from ScienceDirect