Estudo sobre a ocorrência de poluentes emergentes na água do rio meia ponte na cidade de Goiânia- Go
Several studies indicates the presence of emerging pollutants in surface water, these substances not covered by the legislation came from untreated effluent discharges The present study aimed to evaluate the occurrence of anthropogenic marker caffeine and emerging pollutants Triclosan, β-blockers (a...
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| Format: | master thesis |
| Status: | Published version |
| Publication Date: | 2013 |
| Country: | Brasil |
| Institution: | Universidade Federal de Goiás (UFG) |
| Repository: | Repositório Institucional da UFG |
| Language: | Portuguese |
| OAI Identifier: | oai:repositorio.bc.ufg.br:tede/3228 |
| Online Access: | http://repositorio.bc.ufg.br/tede/handle/tede/3228 |
| Access Level: | Open access |
| Keyword: | Poluentes emergentes HPLC Rio Meia Ponte Emerging pollutants Meia Ponte river SANEAMENTO AMBIENTAL::QUALIDADE DO AR, DAS AGUAS E DO SOLO |
| Summary: | Several studies indicates the presence of emerging pollutants in surface water, these substances not covered by the legislation came from untreated effluent discharges The present study aimed to evaluate the occurrence of anthropogenic marker caffeine and emerging pollutants Triclosan, β-blockers (atenolol and propranolol), analgesics (ibuprofen, naproxen, diclofenac, carbamazepine) and hormones (estrone, 17-β-estradiol, 17α-ethinylestradiol , cyproterone acetate, gestodene and levonorgestrel) in water Meia Ponte River in the city of Goiânia-GO. By High Performance Liquid Chromatography - HPLC and fast Ultra High Performance Liquid Chromatography - UHPLC. Physical, chemical and microbiological parameters (turbidity, temperature, pH, Phosphorus, Total Solids, Filterable Solids, Total Coliforms, E. Coli, COD, conductivity, nitrate, DO, BOD) were analyzed to assess the changes of these characteristics during sampling. There were two sampling campaigns in one rainy season and another in the dry season. Samples were collected at six points in the watercourse Meia Ponte, within the boundaries of the Goiânia. The samples were analyzed by UHPLC at LBGQA (UFScar).The compounds analysed were caffeine, ibuprofen, naproxen, diclofenac, carbamazepine, atenolol, propranolol, triclosan, estrone, 17-β-estradiol, 17αethinylestradiol. The physical, chemical and microbiological and Water-Quality Index -WQI indicated that the same river at the point where this capture held in poor condition with evidence of contamination by sewage. Nine Of the eleven emerging pollutants studied were detected at concentrations between 0.61- ng. L-1 22 ng. L-1. The highest concentrations were found in point 3, after the release of STP(Sewage Treatment Plant) Hélio Seixo de Brito in the dry season and the lowest in point 1 where it is held to capture WTP (Water Treatment Plant) Eng Rodolfo José da Costa e Silva, in the rainy season. Caffeine (rainy season 17,91 – 12746,18 ng. L-1 dry season 20,52 – 22917,10 ng. L-1), triclosan (rainy season 2,68 – 6,01 ng. L-1 dry season 5,17 – 82,43,10 ng. L-1) and β-blockers (rainy season 0,61 – 475,76 ng. L-1 dry season 1,46 – 961,08 ng. L-1)were identified with 100% frequency, analgesics (rainy season 7,35 – 120,03 ng. L-1 dry season 4,17 – 404,71ng. L-1) had an average frequency of 70% and from the hormones analyzed, only estrone (<LOQ - 8.60 ng. L -1) was detected in the points after the STP Hélio Seixo Brito in the dry season. The load calculation in this study showed that the behavior of the load did not follow the concentration at all times for all compounds. Some compounds had greater input in the rainy season even when its highest concentration was found in the dry season and others maintained high loads independent of the flow. A PCA was calculated correlating emerging pollutants detected and physical parameters, chemical and microbiological. And was identified a correlation between collection points and also between the variables. |
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