TY - JOUR
T1 - Unravelling the performance of UV/H2O2 on the removal of pharmaceuticals in real industrial, hospital, grey and urban wastewaters
AU - Cibati, A.
AU - Gonzalez-Olmos, R.
AU - Rodriguez-Mozaz, S.
AU - Buttiglieri, G.
N1 - Funding Information:
Authors acknowledge the support from the Economy and Knowledge Department of the Catalan Government through Consolidated Research Group ( GESPA 2017-SGR-1016 , ICRA-ENV 2017 SGR 1124 and 2017-SGR-1318 ) and funding from CERCA programme/ Generalitat de Catalunya . S.R.M. and G.B. acknowledge the Ramon y Cajal research fellowships ( RYC-2014-16707 and RYC-2014-16754 ) and the CLEaN-TOUR project ( CTM 2017-85385-C2-1-R ) from the Spanish Ministry of Economy and Competitiveness .
Funding Information:
Authors acknowledge the support from the Economy and Knowledge Department of the Catalan Government through Consolidated Research Group (GESPA 2017-SGR-1016, ICRA-ENV 2017 SGR 1124 and 2017-SGR-1318) and funding from CERCA programme/Generalitat de Catalunya. S.R.M. and G.B. acknowledge the Ramon y Cajal research fellowships (RYC-2014-16707 and RYC-2014-16754) and the CLEaN-TOUR project (CTM 2017-85385-C2-1-R) from the Spanish Ministry of Economy and Competitiveness.
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2022/3
Y1 - 2022/3
N2 - This study provides an integrated assessment of UV/H2O2 treatment of different real wastewater matrices: two urban wastewater treatment plants (WWTPs) secondary effluents, greywater, hospital, and pharmaceutical industrial effluents. It considers micropollutant removal (up to 30 pharmaceuticals and 13 transformation products at environmental concentrations), energy efficiency and effluent toxicity. The complexity of the wastewater matrix negatively affected the UV fluence in the photo-reactor, scavenged hydroxyl radicals and hindered a proper H2O2 utilization thus reducing the treatment efficiency. At the optimal treatment conditions, overall pharmaceuticals removal was the highest for urban WWTPs effluents (69%–86%), followed by greywater (59%), hospital (36%) and industrial (17%) effluents. The ecotoxicity of the treated samples was reduced around one toxicity unit after the UV/H2O2 treatment in all cases except in industrial wastewater. The average observed removal in urban wastewater effluents and greywater for photo-susceptible, moderately photo-susceptible, and most photo-resistant compounds was 93%, 73% and 46% including outliers, respectively. The calculated electrical energy per order (EEO) values were 0.9–1.5 kWh/(m3·order) for urban WWTP effluents and greywater while for hospital and industrial effluents was much higher (7.3–9.1 kWh/(m3·order)).
AB - This study provides an integrated assessment of UV/H2O2 treatment of different real wastewater matrices: two urban wastewater treatment plants (WWTPs) secondary effluents, greywater, hospital, and pharmaceutical industrial effluents. It considers micropollutant removal (up to 30 pharmaceuticals and 13 transformation products at environmental concentrations), energy efficiency and effluent toxicity. The complexity of the wastewater matrix negatively affected the UV fluence in the photo-reactor, scavenged hydroxyl radicals and hindered a proper H2O2 utilization thus reducing the treatment efficiency. At the optimal treatment conditions, overall pharmaceuticals removal was the highest for urban WWTPs effluents (69%–86%), followed by greywater (59%), hospital (36%) and industrial (17%) effluents. The ecotoxicity of the treated samples was reduced around one toxicity unit after the UV/H2O2 treatment in all cases except in industrial wastewater. The average observed removal in urban wastewater effluents and greywater for photo-susceptible, moderately photo-susceptible, and most photo-resistant compounds was 93%, 73% and 46% including outliers, respectively. The calculated electrical energy per order (EEO) values were 0.9–1.5 kWh/(m3·order) for urban WWTP effluents and greywater while for hospital and industrial effluents was much higher (7.3–9.1 kWh/(m3·order)).
KW - Advanced oxidation processes
KW - Micropollutants
KW - Photolysis
KW - UV/HO
KW - Wastewater
UR - http://www.scopus.com/inward/record.url?scp=85121701256&partnerID=8YFLogxK
U2 - 10.1016/j.chemosphere.2021.133315
DO - 10.1016/j.chemosphere.2021.133315
M3 - Article
C2 - 34921855
AN - SCOPUS:85121701256
SN - 0045-6535
VL - 290
JO - Chemosphere
JF - Chemosphere
M1 - 133315
ER -
