English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/115099
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


Capability of microalgae-based wastewater treatment systems to remove emerging organic contaminants: A pilot-scale study

AuthorsMatamoros, Víctor CSIC ORCID ; Gutiérrez, Raquel; Ferrer, Ivet; García, Joan; Bayona Termens, Josep María
Emerging organic contaminants
High-rate algal pond
Issue Date13-May-2015
AbstractThe effect of hydraulic retention time (HRT) and seasonality on the removal efficiency of 26 organic microcontaminants from urban wastewater was studied in two pilot high-rate algal ponds (HRAPs). The targeted compounds included pharmaceuticals and personal care products, fire retardants, surfactants, anticorrosive agents, pesticides and plasticizers, among others. The pilot plant, which was fed at a surface loading rate of 7-29g of COD m-2d-1, consisted of a homogenisation tank and two parallel lines, each one with a primary settler and an HRAP with a surface area of 1.5m2 and a volume of 0.5m3. The two HRAPs were operated with different HRTs (4 and 8d). The removal efficiency ranged from negligible removal to more than 90% depending on the compound. Microcontaminant removal efficiencies were enhanced during the warm season, while the HRT effect on microcontaminant removal was only noticeable in the cold season. Our results suggest that biodegradation and photodegradation are the most important removal pathways, whereas volatilization and sorption were solely achieved for hydrophobic compounds (log Kow>4) with a moderately high Henry's law constant values (11-12Pam-3mol-1) such as musk fragrances. Whereas acetaminophen, ibuprofen and oxybenzone presented ecotoxicological hazard quotients (HQs) higher than 1 in the influent wastewater samples, the HQs for the effluent water samples were always below 1.
Publisher version (URL)10.1016/j.jhazmat.2015.02.002
Appears in Collections:(IDAEA) Artículos
Files in This Item:
File Description SizeFormat 
restringido.pdf21,67 kBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.