Treatment and removal strategies for estrogens from wastewater.
Environ Technol
; 29(3): 245-67, 2008 Mar.
Article
en En
| MEDLINE
| ID: mdl-18610787
ABSTRACT
Natural and synthetic steroidal estrogens (estrone, 17beta-estradiol and 17alpha-ethinylestradiol) are endocrine disrupters, that are discharged consistently from the sewage treatment works into surface waters, thereby causing endocrine disrupting effects to aquatic organisms at trace concentrations (nanogram per litre). Several years of research have been focused on their fate, behaviour and removal in the environment but primarily in the sewage treatment works which acts as a sink for these compounds. This review attempts to summarize the factors involved in the removal of these chemicals from the sewage treatment works. Biological processes, and to a limited extent physio-chemical properties, play a vital role in the endocrinal deactivation of these compounds. The efficiency of these processes is highly dependent on operating parameters (such as sludge retention time, redox potential, etc) that govern the secondary treatment process of a functional sewage treatment works. Although advanced treatment technologies are available, cost and operational considerations do not make them a sustainable solution.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Aguas del Alcantarillado
/
Eliminación de Residuos Líquidos
/
Estrógenos
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Disruptores Endocrinos
Idioma:
En
Año:
2008
Tipo del documento:
Article