NDLI: Efeito do sal no desempenho de um reator batelada sequencial

Content Provider	Semantic Scholar
Author	Mesquita, Daniela P. Coelho, Maria Alice Zarur Ferreira, Eugénio Campos
Copyright Year	2006
Abstract	The work aims to evaluate a Sequencing Batch Reactor performance treating with saline wastewater (0,5 to 6,0%) employing a filling strategy with symmetric pulses. It was verified that the adopted operational strategy provides ammoniacal nitrogen removal rates over than 70%, demonstrating the high efficiency of this reactor in the nitrification process. Nevertheless, amonia removal rate lowered for 0,5 and 1,0% NaCl, indicating that the influence of salt addition is more significant in the early biomass acclimation stages. Although it was observed an increase in biomass concentration inside the reactor along the operation period, the removal indexes for COD diminishes with salt concentration increase, denoting somehow an inhibitory effect. Lower SVI were achieved with an increase in salt concentration leading to the settling of less compact sludge, while higher turbidity reveals na increase in the suspended solids in the treated effluent. PALAVAS-CHAVE: Efluente salino; Reator Batelada Sequencial; Nitrificacao.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://repositorium.sdum.uminho.pt/bitstream/1822/5677/1/COBEQ2006%5B2%5D.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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