Assessment of full-scale biological nutrient removal systems upgraded with physico-chemical processes for the removal of emerging pollutants present in wastewaters from Mexico
Autor: | Edson Baltazar Estrada-Arriaga, Ma. de Lourdes Rivera-Huerta, Silvia Lucila Gelover-Santiago, Sara Pérez-Castrejón, Juana Enriqueta Cortés-Muñoz, César Guillermo Calderón-Mólgora, Lina Cardoso-Vigueros, Alejandra Martín-Domínguez, Liliana García-Sánchez, Esperanza Ramírez-Camperos, Leticia Montellano-Palacios, Arturo González-Herrera |
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Rok vydání: | 2016 |
Předmět: |
Environmental Engineering
Hydraulic retention time Iron 0208 environmental biotechnology 02 engineering and technology Wastewater 010501 environmental sciences Waste Disposal Fluid 01 natural sciences chemistry.chemical_compound Nutrient Chemical Precipitation Environmental Chemistry Mexico Waste Management and Disposal Effluent 0105 earth and related environmental sciences Pollutant Chlorine dioxide Flocculation Hydrogen Peroxide Pollution Anoxic waters 020801 environmental engineering chemistry Environmental chemistry Sewage treatment Water Pollutants Chemical Environmental Monitoring |
Zdroj: | Science of The Total Environment. 571:1172-1182 |
ISSN: | 0048-9697 |
DOI: | 10.1016/j.scitotenv.2016.07.118 |
Popis: | Two full-scale biological nutrient removal systems upgraded with three physico-chemical processes (coagulation, chemical precipitation, and neutral Fenton) were evaluated in order to determine the removal of emerging pollutants (EPs) present in municipal wastewater from Mexico. Between 41 and 55 EPs were detected in the influents of two wastewater treatment plants (WWTPs), including personal care products (PPCPs), antibiotics, analgesics, antiepileptics, antilipidemics, antihypertensives, antiseptics, stimulants, and hormones. Emerging pollutants were detected at concentrations ranging from 0.69ng/L to 94,600ng/L. High concentrations of emerging pollutants were found during dry season. WWTP 1, integrated by oxidation ditches and UV light lamps, showed removal efficiencies of EPs between 20% and 22%. On the other hand, WWTP 2 consisted of anaerobic/anoxic/aerobic tanks coupled with two disinfection processes; chlorine dioxide and UV light lamps, for which the removal of EPs was significant (up to 80%). The concentrations of emerging pollutants in WWTP 1 effluent was found within a range |
Databáze: | OpenAIRE |
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