Results 141 to 150 of about 2,602 (183)

Anoxic biodegradation of BTEX in a biotrickling filter

Science of The Total Environment, 2017
Emissions of BTEX (benzene, toluene, ethylbenzene and xylene) from the petrochemical industry are characterized by a low pollutants concentration and the absence of oxygen. Biodegradation of these pollutants using nitrate as the electron acceptor is of key interest to reuse the residual gas for inertization purposes.
Ilker, Akmirza, Celia, Pascual, Andrea, Carvajal, Rebeca, Pérez, Raúl, Muñoz, Raquel, Lebrero   +5 more
openaire   +2 more sources

A review of new adsorbents for separation of BTEX biomarkers

Biomedical Chromatography, 2021
AbstractThe biomarker analysis of benzene, toluene, ethylbenzene and xylene (BTEXs) in biological samples is the primary technique for evaluating these compounds in occupational and environmental exposures. The BTEX biomarkers are widely used to study the BTEX distribution in the environment and workplaces.
Mohammadreza Bahrami, Zahra Pirmohammadi, Abdulrahman Bahrami   +2 more
openaire   +2 more sources

Phytoremediation of BTEX by Plants

2014
The use of plants to treat BTEX has been widely studied. Plants can uptake and transform these compounds with cytochrome P450 monooxygenase and dioxygenase enzymes. These enzymes degrade BTEX to low-molecular-weight molecules such as organic acid and amino acids.
Paitip Thiravetyan, Chairat Treesubsuntorn, Wararat Sriprapat   +2 more
openaire   +1 more source

Identification of Alkylbenzenes and Direct Determination of BTEX and BTEX + C3-Benzenes in Oils by GC/MS

Analytical Chemistry, 1995
A rapid, reliable, and effective method for direct determination of benzene, toluene, ethylbenzene, and o-, m-, and p-xylenes (BTEX) and alkyl-substituted benzene components in oil has been developed using GC/MS in selected ion monitoring mode. Using this method, 58 alkyl-substituted benzene components in a light crude oil, Alberta Sweet Mixed Blend ...
Zhendi. Wang, Merv. Fingas, Michael. Landriault, Lise. Sigouin, Nanni. Xu   +4 more
openaire   +1 more source

Remediation of BTEX and trichloroethene

Environmental Science and Pollution Research, 2002
The widespread use of industrial chemicals in our highly industrialized society has often caused contamination of large terrestrial and marine areas due to the deliberate and accidental release of organic pollutants into the soil and groundwater. In this review, environmental problems arising from the use of chlorinated solvents and BTEX compounds are ...
Laturnus, Frank, Collins, Chris, Nepovim, Ales   +2 more
openaire   +2 more sources

Influencing Factors of BTEX Volatilization

2010 4th International Conference on Bioinformatics and Biomedical Engineering, 2010
Laboratory experiments were employed to investigate the influencing factors of BTEX volatilization. Characteristic of BTEX compounds was critical factor of volatilization; the higher saturated vapor pressure, the greater volatilizing speed. Type and structure of underlying materials determined the volatilization kinetics mode, the influence of channel ...
Wei-sheng Chen, Ling Tong, Xi-lai Zheng, Mei Li   +3 more
openaire   +1 more source

Characterization of BTEX in Malaysian petrol

Materials Today: Proceedings, 2018
Abstract Current Malaysian legislation comply to EURO 2 grade with maximum of 5% benzene content by volume in petrol and no limit to the aromatic hydrocarbons content that includes toluene, xylene and ethyl benzene until 2027. Benzene, Toluene, Xylene and Ethylbenzene (BTEX) which present in petrol is simultaneously released to the environment in the
A.N. Syimir Fizal, M.Y.N. Nadiah, B.N. Aini, Md. Sohrab Hossain, A.Y.Ahmad Naim   +4 more
openaire   +1 more source

Quantitative structure–polarization relationships (QSPR) study of BTEX tracers for the formation of antibody–BTEX–EDF complex

Bioorganic & Medicinal Chemistry Letters, 2004
The multiple linear regression (MLR) analysis and back propagation neural networks (NN) were performed to examine the quantitative structure-polarization relationships (QSPR) for the formation of antibody-BTEX-EDF complex. Five descriptors out of 18 ones were selected for both MLR and NN, respectively, and the selected descriptors in MLR were the same ...
Taesung, Moon, Myung Whan, Chi, Myung Ja, Choi, Chang No, Yoon   +3 more
openaire   +2 more sources

Revealing source signatures in ambient BTEX concentrations

Environmental Pollution, 2008
Management of ambient concentrations of Volatile Organic Compounds (VOCs) is essential for maintaining low ozone levels in urban areas where its formation is under a VOC-limited regime. The significant decrease in traffic-induced VOC emissions in many developed countries resulted in relatively comparable shares of traffic and non-traffic VOC emissions ...
Amir, Zalel, , Yuval, David M, Broday
openaire   +2 more sources

BTEX catabolism interactions in a toluene-acclimatized biofilter

Applied Microbiology and Biotechnology, 2001
BTEX substrate interactions for a toluene-acclimatized biofilter consortium were investigated. Benzene, ethylbenzene, o-xylene, m-xylene and p-xylene removal efficiencies were determined at a loading rate of 18.07 g m(-3) h(-1) and retention times of 0.5-3.0 min.
C A, du Plessis, J M, Strauss, K H, Riedel   +2 more
openaire   +2 more sources