Tratamento biológico de água residuária da produção de farinha de mandioca utilizando reator anaeróbico compartimentado vertical (RACOV).

Gleyce T Correia; Vanildo L Del Bianchi

doi:10.5433/1679-0375.2008v29n2p159

Biologic treatment of wastewater from cassava flour production using vertical anaerobic baffled reactor (VABR).

Authors

Gleyce T Correia Instituto de Biociências, Letras e Ciências Exatas (UNESP)
Vanildo L Del Bianchi Instituto de Biociências, Letras e Ciências Exatas (UNESP)

DOI:

https://doi.org/10.5433/1679-0375.2008v29n2p159

Keywords:

Reactors development, Anaerobic biodigestion, Manipueira, Baffled reactor.

Abstract

The estimate cassava production in Brazil in 2007 was of 25 million tons (= 15% of the world production) and most of it is used in the production of flour. During its processing, waste that can cause environmental inequality is generated, if discharged inappropriately. One of the liquid waste generated, manipueira, is characterized by its high level of organic matter. The anaerobic treatment that uses a vertical anaerobic baffled reactor (VABR) inoculated with granulated sludge, is one of the ways of treating this effluent. The anaerobic biodigestion phases are separated in this kind of reactor, allowing greater stability and resistance to load shocks. The VABR was built with a width/height rate of 1:2. The pH, acidity, alkalinity, turbidity and COD removal were analyzed in 6 different regions of the reactor, which was operated with an increasing feeding from ? 2000 to ? 10000 mg COD L?¹ and HRT between 6.0 and 2.5 days. The VABR showed decreasing acidity and turbidity, an increase in alkalinity and pH, and 96% efficiency in COD removal with 3-day HRT and feeding of 3800 mg COD L?¹ .

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Author Biographies

Gleyce T Correia, Instituto de Biociências, Letras e Ciências Exatas (UNESP)

Bacharel em Química Ambiental, Instituto de Biociências, Letras e Ciências Exatas (UNESP).

Vanildo L Del Bianchi, Instituto de Biociências, Letras e Ciências Exatas (UNESP)

Doutor em Agronomia, Professor do Departamento de Engenharia e Tecnologia de Alimentos, Instituto de Biociências, Letras e Ciências Exatas (UNESP).

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Published

2008-12-15

How to Cite

Correia, G. T., & Bianchi, V. L. D. (2008). Biologic treatment of wastewater from cassava flour production using vertical anaerobic baffled reactor (VABR). Semina: Ciências Exatas E Tecnológicas, 29(2), 159–166. https://doi.org/10.5433/1679-0375.2008v29n2p159

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Issue

Vol. 29 No. 2 (2008)

Section

Original Article

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