In:
Water Environment Research, Wiley, Vol. 78, No. 13 ( 2006-12), p. 2447-2455
Abstract:
Biodegradation of phenol was observed in unsaturated sand‐bed columns, in which phenol concentration declined from 298 mg phenol/kg sand to less than 1 mg/kg after 21 days. In saturated sand‐bed columns, phenol concentration declined from 230 mg phenol/kg to less than 1 mg/kg after 37 days. Pseudo‐first‐order phenol biodegradation rates were in the range 0.25 days −1 ( R 2 = 0.9) to 0.66 days −1 ( R 2 = 0.85) and 0.08 days −1 ( R 2 = 0.68) to 0.14 days −1 ( R 2 = 0.84) in the unsaturated and saturated sand‐bed columns, respectively. Unsaturated columns presented a higher biomass density (21.5 mg/g) in the sand‐bed and lower biomass concentration in the aqueous phase (3.5 NTU) compared with the saturated columns (6.4 mg/g and 14.0 NTU). A high concentration of phenol releases in the sand‐bed columns resulted in an initial inhibition of microbial activity and destabilization of the attached biomass.
Type of Medium:
Online Resource
ISSN:
1061-4303
,
1554-7531
DOI:
10.2175/106143006X115417
Language:
English
Publisher:
Wiley
Publication Date:
2006
detail.hit.zdb_id:
1098976-6
detail.hit.zdb_id:
2051010-X
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