نتایج جستجو برای: pah contaminated soils

تعداد نتایج: 88795  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2009
mohsen arbabi simin nasseri anyakora chimezie

polycyclic aromatic hydrocarbons are a class of potentially hazardous chemicals of environmental and health concern. pahs are one of the most prevalent groups of contaminants found in soil. biodegradation of complex hydrocarbon usually requires the cooperation of more than single specie. in this research biotreatment of pah (phenanthrene) was studied in a solid-phase reactor using indigenous ba...

Journal: :Journal of hazardous materials 2011
Yanzheng Gao Qiuling Li Wanting Ling Xuezhu Zhu

An available remediation technique--arbuscular mycorrhizal phytoremediation (AMPR)--is further proposed for soils contaminated with phenanthrene and pyrene as representative polycyclic aromatic hydrocarbons (PAHs) utilizing a greenhouse pot experiment. The initial concentrations of phenanthrene and/or pyrene in soils were 103 mg kg(-1) and 74 mg kg(-1), respectively. The host plant was alfalfa ...

2014
Erika Winquist Marja Tuomela

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Erika Winquist Name of the doctoral dissertation The potential of ligninolytic fungi in bioremediation of contaminated soils Publisher School of Chemical Technology Unit Department of Biotechnology and Chemical Technology Series Aalto University publication series DOCTORAL DISSERTATIONS 54/2014 Field of research Bioprocess Eng...

2013
Reuben N. Okparanma Abdul M. Mouazen

Visible and near-infrared (VisNIR) spectroscopy is becoming recognised by soil scientists as a rapid and cost-effective measurement method for hydrocarbons in petroleum-contaminated soils. This study investigated the potential application of VisNIR spectroscopy (350-2500 nm) for the prediction of phenanthrene, a polycyclic aromatic hydrocarbon (PAH), in soils. A total of 150 diesel-contaminated...

Journal: :Chemosphere 2014
Guozhong Wu Xingang Li Cédric Kechavarzi Ruben Sakrabani Hong Sui Frédéric Coulon

Compost amendment to contaminated soils is a potential approach for waste recycling and soil remediation. The relative importance and interactions of multiple factors on PAH bioavailability in soils were investigated using conjoint analysis and five-way analysis of variance. Results indicated that soil type and contact time were the two most significant factors influencing the PAH bioavailabili...

Journal: :Environmental science & technology 2015
Christine L Lemieux Alexandra S Long Iain B Lambert Staffan Lundstedt Mats Tysklind Paul A White

This study employed an in vitro version of the lacZ transgenic rodent mutation assay to assess the mutagenicity of nonpolar neutral and semipolar aromatic soil fractions from 10 PAH-contaminated sites, and evaluated the assumption of dose additivity that is routinely employed to calculate the risk posed by PAH mixtures. Significant mutagenic activity was detected in all nonpolar neutral fractio...

2010
Fung-Hwa Chi

Using flushing solutions with different nonionic surfactants, this study investigated the remediation of polycyclic aromatic hydrocarbon (PAH)-contaminated soils with different organic carbon contents. Naphthalene and anthracene are the two delegates of PAHs used in the study. Contaminated soil packed in a stainless-steel column was continuously flushed with a surfactant solution at room temper...

Journal: :Journal of environmental monitoring : JEM 2008
Astrid Vivas Beatriz Moreno Coral del Val Cristina Macci Grazia Masciandaro Emilio Benitez

The aim of this study was to characterize soils contaminated by different levels of heavy metals and hydrocarbons (Madonna Dell'Acqua, Pisa, Italy). The soils were chemically and biochemically analysed by measuring the standard chemical properties and some enzyme activities related to microbial activity (dehydrogenase activity) and the soil carbon cycle (total and extracellular beta-glucosidase...

Journal: :Journal of environmental quality 2008
Paul E Olson Ana Castro Mark Joern Nancy M Duteau Elizabeth Pilon-Smits Kenneth F Reardon

Phytoremediation offers an ecologically and economically attractive remediation technique for soils contaminated with polycyclic aromatic hydrocarbons (PAHs). In addition to the choice of plant species, agronomic practices may affect the efficiency of PAH phytoremediation. Inorganic nutrient amendments may stimulate plant and microbial growth, and clipping aboveground biomass might stimulate ro...

Journal: :FEMS microbiology ecology 2003
J J Ortega-Calvo A I Marchenko A V Vorobyov R V Borovick

Abstract The limited mass transfer in polycyclic aromatic hydrocarbon (PAH)-contaminated soils during bioremediation treatments often impedes the achievement of regulatory decontamination end-points. Little is known about bioavailability of these hydrophobic pollutants in phytoremediation systems. This work attempts to evaluate, for the first time, chemotaxis as a bioavailability-promoting trai...

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