Open AccessStudy of the pollution by surfactants in a river of a high Andean micro basin
Author(s) -
David Choque-Quispe,
Mery Luz Masco-Arriola,
Betsy S. Ramos-Pacheco,
Aydeé M. Solano-Reynoso,
Carlos A. Ligarda-Samanez,
Yudith Choque-Quispe,
Jhunior Felix Alonzo-Lanado
Publication year - 2021
Publication title -
dyna
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.164
H-Index - 18
eISSN - 2346-2183
pISSN - 0012-7353
DOI - 10.15446/dyna.v88n217.90795
Subject(s) - dry season , sanitary sewer , pollution , hydrology (agriculture) , surface runoff , environmental science , environmental chemistry , wastewater , conductivity , wet season , drainage basin , chemistry , environmental engineering , geology , geography , ecology , cartography , geotechnical engineering , biology
The surfactants linear alkylbenzene sulfonate (LAS), is used in large quantities in modern society, and wastewater containing it can contaminate groundwaters through runoff and sewers. The study aimed to determine the level of LAS in the Huatanay river; in Cusco city, Peru. Water samples were taken from nine points along the river, in the rainy and dry season in 2018. LAS surfactants were determined spectrometrically using methylene blue as indicator; dissolved oxygen (DO) and conductivity were also determined; both were correlated through Pearson coefficient at 5% significance, and analyzed in triplicate. The concentration of LAS in the dry season varied between 0.01 to 23.17 mg/L and in rains from 0.09 to 1.47 mg/L; the DO level shows values between 0.11 to 5.04 mg O2/L, and the conductivity varied from 777.7 to 2688.9 µS/cm. In conclusion, high levels of LAS considerably decrease the DO and increase the conductivity.