Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/346705
Type: Artigo
Title: Ciliated protozoa community of a combined uasb-activated sludge system in Southeastern Brazil
Author: Siqueira-Castro, Isabel Cristina Vidal
Greinert-Goulart, Juliane Araújo
Rossetto, Renato
Guimarães, José Roberto
Franco, Regina Maura Bueno
Abstract: The aims of the present study were (1) to evaluate the abundance and taxonomic composition of ciliated protozoa in the activated sludge of a full-scale combined anaerobic-aerobic system operating in a tropical country and (2) to study the relationship between the effluent quality, the physicochemical variables, and the ciliates present in the operating system. The total ciliate fauna of the activated sludge of the Piçarrão Wastewater Treatment Plant (Piçarrão WWTP) was composed of 36 morphospecies belonging to 33 genera. These included 21 species observed in the activated sludge samples on the day of collection and 15 species found in cultures. The activated sludge of the Piçarrão WWTP contained a diversified ciliate community composed mainly of indicator organisms. The most frequently occurring morphospecies were Aspidisca cicada, Vorticella spp., Gastronauta aloisi, Acineria uncinata, and Epistylis plicatilis complex. These results showed that satisfactory operating conditions prevailed at the Piçarrão WWTP. In the combined UASB–activated sludge system, the presence of Aspidisca cicada suggests the occurrence of denitrification in the process while the presence of Acineria uncinata and G. alosi indicates the removal of carbonaceous organic matter
Subject: Lodo ativado
Ciliado
Country: Alemanha
Editor: Springer
Rights: Fechado
Identifier DOI: 10.1007/s11356-016-7591-3
Address: https://link.springer.com/article/10.1007/s11356-016-7591-3
Date Issue: 2016
Appears in Collections:IB - Artigos e Outros Documentos
FEC - Artigos e Outros Documentos

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