Open AccessEfficiency of the aquatic macrophyte salvinia auriculata in purification of urban effluents, validated by allium test (Allium Cepa L.)
Author(s) -
Priscila S. Gonçalves,
Camila S. P. Oliveira,
Matheus Prem Mendes,
Marcelo Duarte,
William Costa Rodrigues
Publication year - 2015
Publication title -
revista eletrônica teccen
Language(s) - English
Resource type - Journals
ISSN - 1984-0993
DOI - 10.21727/198409932015.teccen.v8i2.29-35
Subject(s) - macrophyte , allium , effluent , aquatic plant , botany , biology , horticulture , toxicology , environmental science , ecology , environmental engineering
This study aimed to evaluate the efficiency of the aquatic macrophytes Salvinia auriculata Aublet in purification of polluted effluents, and evaluate macroscopically the efficiency of macrophytes using the Allium cepa Linnaeus (onion test). Three collections were performed in September 2011, the first analysis was performed with water collected directly from River Santa Catarina, the second was performed seven days after the contact of the effluent with the macrophytes, and the third, fifteen days after the first analyses. The data were analyzed using Student’s t-test (p<0.05). To verify the normality of the data was used the Kolmogorov-Smirnov test (p<0.05), for each sample (treatment). According to the results of the Allium test, the aquatic macrophyte S. auriculata was efficient in the removing of pollutants agents after fifteen days in contact with the effluent.