نتایج جستجو برای: benzene removal
تعداد نتایج: 161000 فیلتر نتایج به سال:
Abstract Background and Aim: Benzene, toluene, xylene and ethyl benzene (BTEX) are the most important aromatic compounds in petroleum products. BTEX compounds due to their high vapor pressure, easily change to gas form and mixed with ambient air. Petroleum products loading workers are exposed to these compounds by the inhalation of BTEX compounds. The aim of this study was to evaluate the ef...
Abstract The present work reports the investigation performed by comparing adsorption abilities of modified/grafted polymethacrylic acid (PMAA) functionalized with dihydroxy benzene like catechol (CAT) and catechol-hydroquinone (CAT-HQ) an oxidative decarboxylation method using potassium dichromate as oxidant to absorb Malachite green (MG) dye from aqueous solution through batch experiments. pe...
Introduction An aromatics complex is a combination of process units that can be used to convert petroleum naphtha and pyrolysis gasoline (pygas) into the basic petrochemical intermediates: Benzene Toluene and Xylenes (BTX). Benzene is a versatile petrochemical building block used in the production of more than 250 different products. Ethylbenzene, cumene, and cyclohexane are the most important ...
Background and objective: Benzene is one of the main pollutants in air and one of the most extensive chemical compound used in both natural and industrial processes. Benzene exposure leads to the most dangerous adverse health effects, particularly blood cancer. The aim of this study was to evaluate the gas station workers’ exposure to benzene by measuring benzene in breathing air and urinary tr...
Hydrochemical data, compound specific carbon isotope analysis and isotopic enrichment trends in dissolved hydrocarbons and residual electron acceptors have been used to deduce BTEX and MTBE degradation pathways in a fractured chalk aquifer. BTEX compounds are mineralised sequentially within specific redox environments, with changes in electron acceptor utilisation being defined by the exhaustio...
Surfactants are among the main chemical contaminants in greywater (GW) and can cause severe health issues humans aquatic organisms. We assessed performance of a multistage constructed wetland system (EvaTAC) for GW treatment capacity microbial community linear alkyl benzene sulfonate (LAS) biodegradation. Physicochemical analyses were performed over 497 d, biomass samples collected high-through...
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