The present research aimed at evaluating pentachlorophenol (PCP) degradation in a hybrid reactor supplied with a mixture of fatty acids (propionic, butyric, acetic and lactic) and methanol. The performance of the reactor is remarkably stable and efficient during PCP additions at range of 2.0 to 21.0 mg/L. The reduction of chemical oxygen demand (COD) was around 97% and methane was found to be 86% in the biogas production. The efficiency of volatile fatty acids breakdown was 93%, 64% and 74% respectively for butyric, propionic and acetic. PCP total removal of more than 99% was reached by granular sludge activities formed during 21 months of reactor operation. Methanogenic microorganisms predominance was noticed with 105 to 106 cells/mL during enumeration on methanol or lactate added to sulfate culture media. The removal rate was 1.07 mg PCP · g−1 VS · d−1 during the highest PCP concentration addition.
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Research Article|
August 01 2001
Hybrid reactor performance in pentachlorophenol (pcp) removal by anaerobic granules
M. De Almeida Prado Montenegro;
M. De Almeida Prado Montenegro
**
1Department of Hydraulic & Sanitation, São Carlos School of Engineering, University of São Paulo - USP. Av. Tabalhador São-carlense, 400; CEP13566-590, São Carlos, SP, Brazil
**Corresponding author: E-mail: marthapm@enq.ufsc.br. Fax: (55-16) 273-9550.
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E. De Mattos Moraes;
E. De Mattos Moraes
2Department of Food and Chemical Engineering, Federal University of Santa Catarina, Florianópolis, SC, Brazil
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H. Moreira Soares;
H. Moreira Soares
2Department of Food and Chemical Engineering, Federal University of Santa Catarina, Florianópolis, SC, Brazil
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R. Filomena Vazoller
R. Filomena Vazoller
2Department of Food and Chemical Engineering, Federal University of Santa Catarina, Florianópolis, SC, Brazil
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Water Sci Technol (2001) 44 (4): 137–144.
Citation
M. De Almeida Prado Montenegro, E. De Mattos Moraes, H. Moreira Soares, R. Filomena Vazoller; Hybrid reactor performance in pentachlorophenol (pcp) removal by anaerobic granules. Water Sci Technol 1 August 2001; 44 (4): 137–144. doi: https://doi.org/10.2166/wst.2001.0202
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