期刊
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
卷 74, 期 8, 页码 2275-2283出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ecoenv.2011.08.002
关键词
Plant assay; Yeast assay; Mutagenicity; Phytotoxicity; Micronucleus; Sequencing Batch Reactor; Biodegradation
资金
- CNR (Consiglio Nazionale delle Ricerche, Italy)
- CNRST (Centre National pour la Recherche Scientifique et Technique, Morocco) within CNR-CNRST
In order to investigate the biological hazard of effluents from textile industries of Fez-Boulmane region in Morocco, mutagenicity and phytotoxicity tests were performed on different biological systems. Moreover, the efficiency of a Sequencing Batch Reactor (SBR) system, working by activated sludge on a laboratory scale, was estimated by comparing the ecotoxicity results observed before and after wastewater treatment. Evaluation of the genotoxic potential was investigated by means of classic mutagenicity tests on D7 strain of Saccharomyces cerevisiae and by phytotoxicity tests on Album sativum L., Vicia faba L. and Lactuca sativa L., estimating micronuclei presence, mitotic index and cytogenetic anomalies. The results obtained by testing untreated wastewater demonstrated major genotoxicity effects in S. cerevisiae and various levels of phytotoxicity in the three plant systems, while after SBR treatment no more ecotoxicological consequences were observed. These data confirm the effectiveness of the SBR system in removing toxic substances from textile wastewaters in Fez-Boulmane region. (C) 2011 Elsevier Inc. All rights reserved.
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