The effects of toxic substances on the activated sludge microfauna
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2020, Journal of Water Process EngineeringPerformance and microbial community structure of aerobic granular bioreactors at different operational temperature
2020, Journal of Water Process EngineeringCitation Excerpt :The inoculum had high diversity, with the Protista clade as representative eukaryotic microorganisms in E_Otu002 and E_Otu005, both affiliated to the Oligohymenophorea class of ciliate microorganisms, and without a representative abundance of the Fungi kingdom. Protozoa organisms play an essential ecological role since they control the suspended bacteria and peripheral cells of flocs and support a healthy trophic chain in the sludge environmental dynamics [47]. Also, the ciliate protozoa improved sludge settling and effluent quality by reducing particulate matter, reducing the biodegradable organic matter and, specially, acting as a control of pathogenic microorganisms that cause diseases [48].
Microfauna community during pulp and paper wastewater treatment in a UNOX system
2017, European Journal of ProtistologyCitation Excerpt :Attempts have been made to use microorganisms as indicators of treatment conditions in municipal wastewater with toxic compounds. For example, attached ciliates with a narrow peristome (such as Opercularia spp., Vorticella microstoma) can indicate environmental stresses because they survive in such conditions better than other protozoans: Papadimitriou et al. (2007) found that Opercularia sp. tolerated high cyanide concentrations, and Salvadó et al. (2001) found that Vorticella spp. and Opercularia articulata resisted high concentrations of NaCl (up to 40 g/L) better than other ciliated protozoa. Moreover, the ciliate Epistylis cf .