TY - JOUR
T1 - Removal of pesticides from water combining low pressure UV photolysis with nanofiltration
AU - Sanches, Sandra
AU - Penetra, Ana I.
AU - Rodrigues, Alexandre Mourão
AU - Cardoso, Vítor Vale
AU - Ferreira, Elisabete Carvalho N.
AU - Benoliel, Maria João
AU - Goulão Crespo, Maria Teresa Barreto
AU - Crespo, João Paulo Serejo Goulão
AU - Pereira, Vanessa Ranhada
N1 - Financial support from Fundacao para a Ciencia e a Tecnologia - through the project PTDC/AMB/66024/2006, the grant PEst-OE/EQB/LA0004/2011, and the fellowships BPD/26990/2006 and BD/72244/2010 is gratefully acknowledged.
PY - 2013/8/30
Y1 - 2013/8/30
N2 - The combination of low pressure ultraviolet photolysis and nanofiltration proved to be extremely efficient for the treatment of drinking water since several emerging pesticides spiked in surface water were found to be highly removed. The concentration of the by-products formed and estrogenic activity of the nanofiltration permeate was found to be always very low during operation, showing that the by-products formed during photolysis were efficiently retained by the nanofiltration process. Moreover, the need to further treat/dispose the retentate and the respective costs are also likely to decrease. The combined process is promising to remove the selected micropollutants and formed by-products while reducing the chlorine doses needed to achieve water disinfection, therefore decreasing also the formation of disinfection by-products.
AB - The combination of low pressure ultraviolet photolysis and nanofiltration proved to be extremely efficient for the treatment of drinking water since several emerging pesticides spiked in surface water were found to be highly removed. The concentration of the by-products formed and estrogenic activity of the nanofiltration permeate was found to be always very low during operation, showing that the by-products formed during photolysis were efficiently retained by the nanofiltration process. Moreover, the need to further treat/dispose the retentate and the respective costs are also likely to decrease. The combined process is promising to remove the selected micropollutants and formed by-products while reducing the chlorine doses needed to achieve water disinfection, therefore decreasing also the formation of disinfection by-products.
KW - Low pressure UV photolysis
KW - Nanofiltration
KW - Water treatment
KW - Estrogenic activity
KW - Titanium dioxide photocatalysis
KW - Emerging micropollutants
KW - Emerging micropollutants
KW - Estrogenic activity
KW - Low pressure UV photolysis
KW - Nanofiltration
KW - Titanium dioxide photocatalysis
KW - Water treatment
U2 - 10.1016/j.seppur.2013.04.044
DO - 10.1016/j.seppur.2013.04.044
M3 - Article
VL - 115
SP - 73
EP - 82
JO - Separation and Purification Technology
JF - Separation and Purification Technology
SN - 1383-5866
ER -