Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 761, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.scitotenv.2020.143237
Keywords
Vinasse fertigation; Soil amendment; Organic contaminants; Suspect screening; NORMAN Digital Sample Freezing Platform; Antibiotics
Categories
Funding
- FAPESP (Sao Paulo Research Foundation) [2018/15739-5, 2016/06352-4]
- Generalitat de Catalunya through the Consolidated Research Group [SGR ICRA-ENV 2017 1124]
- CERCA program
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This study evaluated the sustainability of vinasse reuse as a fertilizer in sugarcane crops by screening organic contaminants in vinasse, soil, and groundwater. While antibiotics were not detected, other compounds were tentatively identified. The results suggest that pollutants in soil and groundwater may come from sources other than vinasse reuse.
This work evaluated for the first time the sustainability of vinasse reuse as a fertilizer in sugarcane crops by assessing the occurrence of organic contaminants and their potential for dissemination to soils and groundwater in fertigated areas. A comprehensive screening of organic contaminants was performed in vinasse, soil and groundwater using target analysis, to investigate the occurrence of multiple-class antibiotics, in combination with suspect screening using NORMAN Digital Sample Freezing Platform. Even though antibiotics are used in the ethanol production process and were expected to be ubiquitous contaminants, they were not detected in any of the samples. Nevertheless, the HRMS-based wide-scope suspect screening (including >7800 substances such as pharmaceuticals, agrochemicals, preservatives and industrial chemicals) allowed the tentative identification of 56 compounds, mostly pesticides, food additives, industrial and naturally occurring substances. Results showed no overlap between the compounds detected in vinasse and environmental samples, suggesting that the pollutants found in soil and groundwater might come from alternative sources other than vinasse reuse. (C) 2020 Elsevier B.V. All rights reserved.
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