Biodegradation of nonylphenol in soil

• Published in: Chemosphere (Oxford) 2007, Vol.66 (10), p.1857-1862
• Main Authors: Chang, B.V., Chiang, B.W., Yuan, S.Y.
• Format: Article
• Language: English
• Subjects: Analysis of Variance; Applied sciences; Biodegradation; Biodegradation of pollutants; Biodegradation, Environmental; Biological and medical sciences; Bioreactors - microbiology; bioremediation; Biotechnology; composts; Cytophaga; Cytophaga - metabolism; Decontamination. Miscellaneous; Earth sciences; Earth, ocean, space; Engineering and environment geology. Geothermics; Environment and pollution; Exact sciences and technology; Fundamental and applied biological sciences. Psychology; gas chromatography; Gas Chromatography-Mass Spectrometry; gel electrophoresis; hydrogen peroxide; Industrial applications and implications. Economical aspects; mass spectrometry; microbial activity; Nonylphenol; Ochrobactrum - metabolism; Phenols - chemistry; Phenols - metabolism; pollutants; polluted soils; Pollution; Pollution, environment geology; Soil; Soil - analysis; soil amendments; Soil and sediments pollution; soil bacteria; Soil Microbiology; soil pollution; yeast extract
• ISSN: 0045-6535; 1879-1298
• DOI: 10.1016/j.chemosphere.2006.08.029

We investigated the effects of various factors (brij 30, brij 35, yeast extract, hydrogen peroxide and compost) on the aerobic degradation of nonylphenol (NP) in soil and characterized the structure of the microbial community in that soil. Residues of NP were measured using gas chromatography–mass spectrometry (GC–MS) and a change of microbial communities was demonstrated using denaturing gradient gel electrophoresis (DGGE). The results showed that Taichung sandy clay loam had higher NP degradation rate than Kaoshiung silty clay. The addition of compost, yeast extract (0.5 mg/l), brij 30 (55 μM), or brij 35 (91 μM) enhanced NP degradation, while the addition of hydrogen peroxide (1.0 mg/l) inhibited its degradation. We also found that the addition of various substrates changed the microbial community in the soils. Cytophaga sp. and Ochrobactrum sp. were constantly dominant bacteria under various conditions in the soil.