A carregar...
Publicação
Sequential application of soil vapor extraction and bioremediation processes for the remediation of ethylbenzene-contaminated soils
| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 368.49 KB | Adobe PDF |
Orientador(es)
Resumo(s)
Soil vapor extraction (SVE) is an efficient,
well-known and widely applied soil remediation technology.
However, under certain conditions it cannot
achieve the defined cleanup goals, requiring further
treatment, for example, through bioremediation (BR).
The sequential application of these technologies is
presented as a valid option but is not yet entirely
studied. This work presents the study of the remediation
of ethylbenzene (EB)-contaminated soils, with different
soil water and natural organic matter (NOMC) contents,
using sequential SVE and BR. The obtained results
allow the conclusion that: (1) SVE was sufficient to
reach the cleanup goals in 63% of the experiments (all
the soils with NOMC below 4%), (2) higher NOMCs
led to longer SVE remediation times, (3) BR showed to
be a possible and cost-effective option when EB concentrations
were lower than 335 mg kgsoil
−1, and (4)
concentrations of EB above 438 mg kgsoil
−1 showed to
be inhibitory for microbial activity.
Descrição
Palavras-chave
Ethylbenzene Soil vapor extraction Bioremediation Organic matter Water content Remediation time
Contexto Educativo
Citação
Editora
Springer