TY - JOUR
T1 - Hydrochemistry and emerging contaminants in industrial urban wastewater in Morelia, Michoacán, Mexico
AU - Robledo Zacarías, Víctor Hugo
AU - Velázquez Machuca, Martha Alicia
AU - Montañez Soto, José Luis
AU - Pimentel Equihua, José Luis
AU - Vallejo Cardona, Alba Adriana
AU - López Calvillo, María Dolores
AU - Venegas González, José
N1 - Publisher Copyright:
© 2017, Centro de Ciencias de la Atmosfera, UNAM. All rights reserved.
PY - 2017
Y1 - 2017
N2 - In Mexico, 54 [%] of the wastewater generated is not treated and it is discharged into the water bodies, soils and irrigation canals, leading to a severe pollution problem. This represents a high risk to human health and aquatic biota. In recent decades, emerging contaminants have been detected in surface water in contact with raw and treated sewage. These compounds and their reactive metabolites cause severe toxicological effects on aquatic organisms and soil microorganisms even at low concentrations. The objective of this work was to analyze the physical and chemical properties: pH, electrical conductivity (EC), total dissolved solids (TDS), Ca2+, Mg2+, Na+, boron (B), total phosphorus (P) and trace metals (Mn, Zn, Fe and Cu), and to identify and quantify emerging contaminants (pharmaceuticals and drugs of abuse) in the influent and effluent of Wastewater Treatment Plant (WWTP) of Morelia, using standardized methodologies, such as infrared spectroscopy FT-IR and mass spectrometry ESI-TOF-MS. The values of pH, EC, TDS, sodium adsorption ratio (SAR), B, P and trace metals were within the limits set by Mexican standards and international guidelines for wastewater reuse in agriculture. Emerging contaminants identified by ESI-TOF-MS were tetracycline, cefaclor, cefadroxil, ampicillin, clonazepam, lormetazepam, secobarbital, maprotiline, levothyroxine, cis-androsterone, paracetamol, lidocaine, brompheniramine, fexofenadine, amphetamine, morphine, benzoylecgonine, 11-nor-?9-THC-9-COOH, dimetilamfetamina, phencyclidine, methadone y polyethyleneglycol. The removal efficiency of these pollutants in the effluent was 25.8 [%], with extremes of 0 and 74.5 [%] for polyethyleneglycol and methadone, respectively.
AB - In Mexico, 54 [%] of the wastewater generated is not treated and it is discharged into the water bodies, soils and irrigation canals, leading to a severe pollution problem. This represents a high risk to human health and aquatic biota. In recent decades, emerging contaminants have been detected in surface water in contact with raw and treated sewage. These compounds and their reactive metabolites cause severe toxicological effects on aquatic organisms and soil microorganisms even at low concentrations. The objective of this work was to analyze the physical and chemical properties: pH, electrical conductivity (EC), total dissolved solids (TDS), Ca2+, Mg2+, Na+, boron (B), total phosphorus (P) and trace metals (Mn, Zn, Fe and Cu), and to identify and quantify emerging contaminants (pharmaceuticals and drugs of abuse) in the influent and effluent of Wastewater Treatment Plant (WWTP) of Morelia, using standardized methodologies, such as infrared spectroscopy FT-IR and mass spectrometry ESI-TOF-MS. The values of pH, EC, TDS, sodium adsorption ratio (SAR), B, P and trace metals were within the limits set by Mexican standards and international guidelines for wastewater reuse in agriculture. Emerging contaminants identified by ESI-TOF-MS were tetracycline, cefaclor, cefadroxil, ampicillin, clonazepam, lormetazepam, secobarbital, maprotiline, levothyroxine, cis-androsterone, paracetamol, lidocaine, brompheniramine, fexofenadine, amphetamine, morphine, benzoylecgonine, 11-nor-?9-THC-9-COOH, dimetilamfetamina, phencyclidine, methadone y polyethyleneglycol. The removal efficiency of these pollutants in the effluent was 25.8 [%], with extremes of 0 and 74.5 [%] for polyethyleneglycol and methadone, respectively.
UR - http://www.scopus.com/inward/record.url?scp=85018268233&partnerID=8YFLogxK
U2 - 10.20937/RICA.2017.33.02.04
DO - 10.20937/RICA.2017.33.02.04
M3 - Artículo
SN - 0188-4999
VL - 33
SP - 221
EP - 235
JO - Revista Internacional de Contaminacion Ambiental
JF - Revista Internacional de Contaminacion Ambiental
IS - 2
ER -