Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/5641
Título: Treatment of tannery wastewater in a constructed wetlands operating in series with different plant species
Autor: Calheiros, Cristina S. C.
Rangel, António O.S.S.
Castro, Paula M.L.
Data: 2006
Citação: CALHEIROS, Cristina S. C.; RANGEL, António O.S.S.; CASTRO, Paula M. L. - Treatment of Tannery Wastewater in a Constructed Wetlands Operating in Series with Different Plant Species. In International Conference on Wetland Systems for Water Pollution Control, 10, Lisboa, Portugal, 23-29 Setembro, 2006 - Proceedings of the International Conference on Wetland Systems for Water Pollution Control, ISBN 989-20-0361-6, Vol. II, Lisboa, Portugal, 2006, p.1777
Resumo: The treatment of tannery wastewater has been a very important issue for pollution control in leather producing countries due to its high pollutant content. Biological processes offer a natural way of treating wastewaters, when compared to more aggressive types of treatment. Constructed wetlands can be an alternative to more conventional biological treatment systems. The species Phragmites australis, Typha spp, Scirpus spp. and Phalaris arundinacea are some of the plants frequently used in subsurface flow constructed wetlands. The present study aimed at assessing the performance of constructed wetland systems operating in series for the treatment of wastewater derived from a tannery plant. Pilot units were operated with horizontal subsurface flow and planted with Typha latifolia and Phragmites australis in an expanded clay matrix. They were subject to two different hydraulic loadings: 180mm/d and 60 mm/d. For an hydraulic loading of 180 mm/d, maximum removal efficiencies of 2100 KgCOD/had (48%) were achieved for unit 1 and 1500 KgCOD/had (33%) for unit 2. For an hydraulic loading of 60 mm/d, maximum removal efficiencies of 360 KgCOD/had (66%) were achieved for unit 1 and of 250 KgCOD/had (60%) for unit 2. No significant differences in performance were found between units with different plant species.
Peer review: no
URI: http://hdl.handle.net/10400.14/5641
Aparece nas colecções:ESB - Resumos em actas / Abstracts in proceedings

Ficheiros deste registo:
Ficheiro Descrição TamanhoFormato 
com-inter_2006_ESB_383_Calheiros_Cristina_03.pdf30,64 kBAdobe PDFVer/Abrir


FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Degois 

Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.