The effects of tannery wastewater on the development of different plant species and chromium accumulation in Phragmites australis

Archives of Environmental Contamination and Toxicology
Cristina S C CalheirosPaula M L Castro

Abstract

Toxicity tests were performed to assess the effect of tannery wastewater with different treatment levels on two wetland plants, Phragmites australis and Typha latifolia, which are frequently used in constructed wetlands (CWs) for water treatment, and thus deepen the knowledge on their capacity to withstand the application of industrial wastewater. Trifolium pratense, a plant generally used as an indicator in toxicity tests, was included as a control. End points measured were germination percentage, shoot length, root elongation, and biomass growth of the plants. When tannery effluent, with a low treatment level, was supplied to the wetland plants germination occurred even at effluent concentrations of 100%, whereas germination of T. pratense was completely inhibited, almost invariably, at effluent concentration of 50%. Higher germination levels were achieved when the plants were exposed to effluent originating from the outlet of constructed wetland pilot units, allowing germination of all tested plants, indicating a significant decrease in its toxicity level. Experiments conducted with the same plants using different growing substrata as the germination matrix, namely expanded clay aggregates (Filtralite MR 3-8 and Filtralite N...Continue Reading

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Citations

Oct 20, 2011·Cell Biology and Toxicology·Cristina CaldelasAnna Febrero
Aug 10, 2010·Biological Trace Element Research·Azam Sadat Hosseini AlhashemiMohammad Sadegh Sekhavatjou
Aug 23, 2012·International Journal of Phytoremediation·Cristina S C CalheirosPaula M L Castro
Apr 24, 2012·Environmental Toxicology and Pharmacology·Lubna ShakirAqeel Javeed
Feb 16, 2011·Journal of Hazardous Materials·Jie LiuXiaoyan Lu
Mar 10, 2015·Plant Physiology and Biochemistry : PPB·Agata Zemleduch-Barylska, Gabriela Lorenc-Plucińska
Jun 18, 2014·International Journal of Phytoremediation·Cristina S C CalheirosPaula M L Castro
Jul 28, 2020·International Journal of Environmental Research and Public Health·Rehan AhmadMohamed M Abdel-Daim
Nov 20, 2020·Environmental Science and Pollution Research International·Deep Shikha, Prasoon Kumar Singh

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