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Constructed wetland systems vegetated with different plants applied to the treatment of tannery wastewater

Calheiros, Cristina S.C. ; Rangel, António O.S.S. ; Castro, Paula M.L.

Water research (Oxford), 2007-04, Vol.41 (8), p.1790-1798 [Periódico revisado por pares]

Oxford: Elsevier Ltd

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Título:
Constructed wetland systems vegetated with different plants applied to the treatment of tannery wastewater
Autor: Calheiros, Cristina S.C. ; Rangel, António O.S.S. ; Castro, Paula M.L.
Assuntos: Applied sciences ; Canna indica ; Constructed wetlands ; Exact sciences and technology ; Horizontal subsurface flow ; Industrial Waste ; Iridaceae - growth & development ; Iris pseudacorus ; Other industrial wastes. Sewage sludge ; Phragmites australis ; Phytoremediation ; plant health ; Poaceae - growth & development ; Pollution ; Stenotaphrum secundatum ; tannery effluents ; tannery waste ; Tannery wastewater ; Tanning ; Typha latifolia ; Typhaceae - growth & development ; vegetation ; Waste Disposal, Fluid - methods ; Wastes ; wastewater ; wastewater treatment ; Water treatment and pollution ; wetland plants ; Wetlands ; Zingiberales - growth & development
É parte de: Water research (Oxford), 2007-04, Vol.41 (8), p.1790-1798
Notas: http://dx.doi.org/10.1016/j.watres.2007.01.012
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Descrição: Wastewaters from leather processing are very complex and lead to water pollution if discharged untreated, especially due to its high organic loading. In this study the survival of different plant species in subsurface horizontal flow constructed wetlands receiving tannery wastewater was investigated. Five pilot units were vegetated with Canna indica, Typha latifolia, Phragmites australis, Stenotaphrum secundatum and Iris pseudacorus, and a sixth unit was left as an unvegetated control. The treatment performance of the systems under two different hydraulic loading rates, 3 and 6 cm d −1, was assessed. COD was reduced by 41–73% for an inlet organic loading varying between 332 and 1602 kg ha −1 d −1 and BOD 5 was reduced by 41–58% for an inlet organic loading varying between 218 and 780 kg ha −1 d −1. Nutrient removal occurred to lower extents. Phragmites australis and Typha latifolia were the only plants that were able to establish successfully. Despite the high removal of organic content from the influent wastewater, during 17 months of operation, no significant differences in performance were observed between units.
Editor: Oxford: Elsevier Ltd
Idioma: Inglês

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Constructed wetland systems vegetated with different plants applied to the treatment of tannery wastewater

Calheiros, Cristina S.C. ; Rangel, António O.S.S. ; Castro, Paula M.L.

Oxford: Elsevier Ltd

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