Biodegradation of 2-chlorophenol (2CP) in an anaerobic sequencing batch reactor (ASBR)

The aim of this study is to contribute to the knowledge about anaerobic digestion of 2-chlorophenol (2CP) in an anaerobic sequencing batch reactor (ASBR). Two reactors were set up (ASBR(A) and ASBR(B)). The ASBR(A) was fed with 2-chlorophenol (28-196 mg 2CP-C/L) and no other exogenous electron donor...

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Veröffentlicht in:Water science and technology : a journal of the International Association on Water Pollution Research. - 1986. - 65(2012), 10 vom: 10., Seite 1721-8
1. Verfasser: Beristain-Montiel, Lizeth (VerfasserIn)
Weitere Verfasser: Gómez, Jorge, Monroy, Oscar, Cuervo-López, Flor de Maria, Ramírez-Vives, Florina
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2012
Zugriff auf das übergeordnete Werk:Water science and technology : a journal of the International Association on Water Pollution Research
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Chlorophenols Sewage 2-chlorophenol K9KAV4K6BN
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245 1 0 |a Biodegradation of 2-chlorophenol (2CP) in an anaerobic sequencing batch reactor (ASBR) 
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520 |a The aim of this study is to contribute to the knowledge about anaerobic digestion of 2-chlorophenol (2CP) in an anaerobic sequencing batch reactor (ASBR). Two reactors were set up (ASBR(A) and ASBR(B)). The ASBR(A) was fed with 2-chlorophenol (28-196 mg 2CP-C/L) and no other exogenous electron donor. The ASBR(B) was fed with a mixture of 2CP (28-196 mg 2CP-C/L) and phenol (28-196 mg phenol-C/L) as an electron donor. The process evaluation was conducted by three means: first by substrate consumption efficiency (E(2CP)), second, by biogas yield (Y(biogas-C/2CP-C)) and third, by the specific consumption rates (q(2CP)) as response variables. The 2CP consumption efficiency (90 ± 0.4%) was not influenced by the increase in the concentrations tested. In both reactors ASBR(A) and ASBR(B), both concentration as well as speed increased. Concentration increased from 28 to 114 mg 2CP-C/L. The specific consumption rate (q(2CP)) values were fivefold higher. However, a decrease of 37% was observed at 140 mg 2CP-C/L and one of 72% at 196 mg 2CP-C/L. The biogas yields (0.80 ± 0.06) remained stable in both reactors. In both reactors the biogas yield decreased to 78 ± 3% at 196 mg 2CP-C/L. We might assume this decrease was due to the accumulation of VFA. Finally, poor sludge settleability was determined only in the SBR(B) reactor at 140 and 196 mg 2CP-C/L. An increase was observed in both SVI ≤ 140 ± 5 mL/g and over exopolymeric protein ≤120 mg EP/L 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
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650 7 |a 2-chlorophenol  |2 NLM 
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700 1 |a Gómez, Jorge  |e verfasserin  |4 aut 
700 1 |a Monroy, Oscar  |e verfasserin  |4 aut 
700 1 |a Cuervo-López, Flor de Maria  |e verfasserin  |4 aut 
700 1 |a Ramírez-Vives, Florina  |e verfasserin  |4 aut 
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773 1 8 |g volume:65  |g year:2012  |g number:10  |g day:10  |g pages:1721-8 
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