clay and ethylbenzene

The bioremoval potential of Pseudomonas plecoglossicida toward mixed contaminants was explored through the coupled biostimulation and bioaugmentation in soil microcosm. Response surface methodology was employed to optimize nutrients and innoculum size for the cometabolic removal of two representative chloroethylenes, trichloroethylene (TCE) and cis-1,2-dichloroethylene (cis-DCE), mixed with benzene, toluene, ethylbenzene, and xylenes (BTEX). The interactive effects of nutrients [nitrogen (N) and phosphorus (P)] and inoculum size toward the bioremoval of mixture of BTEX (600 mg kg

Topics: Benzene; Benzene Derivatives; Biodegradation, Environmental; Clay; Pseudomonas; Soil; Toluene; Vinyl Chloride; Xylenes

Porous clay heterostructures (PCHs) are capable of adsorbing volatile organic compounds (VOCs). In this study, PCH was synthesized by modifying bentonite (Bent) with cetyltrimethylammonium bromide (CTMAB) and dodecylamine (DDA). Adsorption of six volatile organic compounds (VOCs) including acetone, toluene, ethylbenzene, o-xylene, m-xylene and p-xylene by PCH was investigated. It was observed that adsorption capacities of VOCs were strongly dependent on their properties including cross-sectional area, polarizability, enthalpy of vaporization and critical volume by the multiple linear regression (MLR) approach. Furthermore, PCH had higher adsorption affinity for the aliphatic hydrocarbon compound (acetone) than that for aromatic compounds, which could be attributed to the HOMO energy effects of VOCs. Therefore, PCH could be attractive candidate adsorbents for VOC removal.

Topics: Acetone; Adsorption; Aluminum Silicates; Benzene Derivatives; Clay; Environmental Pollutants; Porosity; Structure-Activity Relationship; Toluene; Volatile Organic Compounds; Xylenes