Related Experiment Video
Updated: Apr 22, 2026

Physical, Chemical and Biological Characterization of Six Biochars Produced for the Remediation of Contaminated Sites
Published on: November 28, 2014
Effects of polyethoxylate lauryl ether (Brij 35) addition on phenanthrene biodegradation in a soil/water system
Yi-T Chang1, Chun-H Hung, Hsi-L Chou
1a Department of Microbiology , Soochow University , Taipei , Taiwan.
Abstract:
Non-ionic surfactants usually are often selected for use in surfactant flushing technology, which is a process that can be used as part of PAH-contaminated soil bioremediation. Phenanthrene (PHE) biodegradation in the presence of polyethoxylate lauryl ether (Brij 35) was studied in two soil/water systems. The natural soil organic matter content (SOM) and the present of Brij 35, both above the critical micelle concentration (CMC) and below the CMC, changed the rate of PHE biodegradation in the presence of Brij 35. PHE biodegradation is different in the two different soil/water systems: PHE > PHE-Brij 35-Micelle > PHE-Brij 35-Monomer in the clay/water system; PHE-Brij 35-Micelle > PHE-Brij 35-Monomer > PHE in the natural soil/water system. Among the free-living species associated with PHE-Brij 35 biodegradation, Brevundimonas diminuta, Caulobacter spp., Mycoplana bullata, Acidovorax spp. and Pseudomonas aeruginosa accounted for 90.72% to 99.90% of the bacteria present. Specific hydrolytic enzymes, including esterases, glycosol-hydrolases and phosphatases, are expressed during PHE biodegradation. The information presented here will help the engineering design of more effective PAH bioremediation systems that use Brij 35 series flushing technology. In particular, micelles of Brij 35 can be used to accelerate the rate of remediation of PAH-contaminated soil in natural soil/water systems.
More Related Videos
08:21Isolation and Screening from Soil Biodiversity for Fungi Involved in the Degradation of Recalcitrant Materials
Published on: May 16, 2022
05:05Quantification of Polybutylene Adipate Terephthalate-based Micro- and Nano-plastics from Soil Using Proton Nuclear Magnetic Resonance Spectroscopy
Published on: June 6, 2025
Related Concept Videos
Microbial Bioremediation of Hydrocarbons
Microbial Bioremediation of Pesticides
Bioremediation
Bioplastics
Hydrolysis of Chlorobenzene to Phenol: Dow Process
Microbial Bioremediation of Plastics