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https://hdl.handle.net/1822/61453
Título: | Polishing domestic wastewater on a subsurface flow constructed wetland: Organic matter removal and microbial monitoring |
Autor(es): | Mina, Isabel Aguiar Pinto Costa, M. Matos, A. Calheiros, C. Sousa Coutinho Castro, P. M. L. |
Palavras-chave: | microbial communities constructed wetland DGGE Phragmites australis domestic wastewater |
Data: | 2011 |
Editora: | Taylor and Francis |
Revista: | International Journal of Phytoremediation |
Citação: | Aguiar-Pinto Mina, M. Costa, A. Matos, C. Sousa Coutinho Calheiros & P. M. L. Castro (2011): Polishing Domestic Wastewater on a Subsurface Flow Constructed Wetland: Organic Matter Removal and Microbial Monitoring, International Journal of Phytoremediation, 13:10, 947-958 |
Resumo(s): | Microbial monitoring of constructed wetlands (CWs) treating domestic wastewater is generally scarce, despite the need of more knowledge about its biocenosis. The sanitation quality of a wastewater treated in a CW is a crucial aspect, mainly when the receiving water body is used as a swimming and/or recreation area. The present study was carried out in a horizontal subsurface flow CW planted with Phragmites australis receiving pre-treated domestic wastewater (mean flow 50 m(3) day(-1)), from a population of about 300 inhabitants. The monitoring programme undertaken during the first year operation, revealed removal efficiencies of 61% BOD5, 44% COD, and 65% TSS for inlet water with ca. 90 mg L-1 BOD5, 157 mg L-1 COD, and 17 mg L-1 TSS. Total Coliform (TC) and Faecal Coliform (FC) bacteria were removed from wastewater (mean inlet values of 5 x 10(6) CFU 100 mL(-1) TC and of 9 x 10(5)CFU 100 mL(-1) FC), with efficiencies of 92 and 97%, respectively. The dynamics of microbial communities established in the system assessed by polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE), had revealed a high bacterial diversity within the system, with no relevant differences in composition at the CW inlet and outlet but exhibiting temporal differences in bacterial communities. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/61453 |
DOI: | 10.1080/15226514.2010.532182 |
ISSN: | 1522-6514 |
Versão da editora: | http://dx.doi.org/10.1080/15226514.2010.532182 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | DBio - Artigos/Papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Mina et al 2011 Polishing Domestic Wastewater on a Subsurface Flow Constructed Wetland- Organic Matter R.pdf Acesso restrito! | 224,27 kB | Adobe PDF | Ver/Abrir |