Performance of an Anaerobic Baffled Reactor (ABR) in treatment of cassava wastewater

Brazilian Journal of Microbiology

Fernanda M. Ferraz²  Aline T. Bruni¹  Vanildo L. Del Bianchi² 

[1] ,Universidade Estadual Paulista Instituto de Biociências Letras e Ciências Exatas de São José do Rio Preto Departamento de Engenharia e Tecnologia de AlimentosSão José do Rio Preto SP ,Brasil

关键词: Anaerobic baffled reactor (ABR);    Anaerobic digestion;    Cassava wastewater;    COD removal;    Principal component analysis (PCA);    Reator Anaeróbio Compartimentado (RAC);    Digestão anaeróbia;    Manipueira;    Remoção da DQO;    Análise das Componentes Principais (PCA);   

DOI  :  10.1590/S1517-83822009000100007

来源: SciELO

【 摘 要 】

The performance of an anaerobic baffled reactor (ABR) was evaluated in the treatment of cassava wastewater, a pollutant residue. An ABR divided in four equal volume compartments (total volume 4L) and operated at 35°C was used in cassava wastewater treatment. Feed tank chemical oxygen demand (COD) was varied from 2000 to 7000 mg L-1 and it was evaluated the most appropriated hydraulic retention time (HRT) for the best performance on COD removal. The ABR was evaluated by analysis of COD (colorimetric method), pH, turbidity, total and volatile solids, alkalinity and acidity. Principal component analysis (PCA) was carried to better understand data obtained. The system showed buffering ability as acidity decreased along compartments while alkalinity and pH values were increased. There was particulate material retention and COD removal varied from 83 to 92% for HRT of 3.5 days.

【 授权许可】

CC BY-NC   
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