SciELO - Scientific Electronic Library Online

 
vol.17 número2Remoção de diclofenaco, ibuprofeno, naproxeno e paracetamol em filtro ecológico seguido por filtro de carvão granular biologicamente ativadoAplicação de regressão baseada no uso do solo para predizer a concentração de material particulado inalável no município de São Paulo, Brasil índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Engenharia Sanitaria e Ambiental

versão impressa ISSN 1413-4152

Resumo

BELLI, Tiago José et al. Membrane sequencing batch reactor for the wastewater treatment aiming the nutrients removal. Eng. Sanit. Ambient. [online]. 2012, vol.17, n.2, pp.143-154. ISSN 1413-4152.  https://doi.org/10.1590/S1413-41522012000200003.

This study evaluated the performance of a membrane bioreactor sequencing batch, in pilot scale, to remove nutrients (nitrogen and phosphorus) from domestic wastewater. The reactor was operated for 241 days with a total cycle time of 4 hours, with 5 minutes for feeding, 55 minutes for the anoxic phase and 180 minutes for the aeration and filtration phases (simultaneously). Throughout the monitoring, two filtration flows were employed: 5.5 and 11.1 (critical flux) L.m-2.h-1, which resulted in the volume exchange rates of 5 and 10%, respectively. The removal efficiencies of total Chemical Oxygen Demand, ammonia nitrogen and total nitrogen were achieved by 99, 98 and 96%, respectively. Regarding phosphorus removal, a poor performance was observed in the beginning of the experiment; however, a tendency of improvement in the removal of this nutrient was further verified, reaching an efficiency average of 74% between the operational days 158 and 241. The flux filtration at 5.55 L.m-2.h-1 has provided a membrane bioreactor sequencing batch stable operation in relation to transmembrane pressure since it reached the limit value of 0.7 bar only once in 181 operational days, while for 11.1 L.m-2.h-1 it was observed 3 times in 55 days.

Palavras-chave : membrane sequencing batch bioreactor; nutrients removal; wastewater treatment.

        · resumo em Português     · texto em Português     · Português ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons