نتایج جستجو برای: organic pollutants

تعداد نتایج: 221574  

2008
V. M. Campos I. Merino R. Casado L. F. Pacios L. Gómez

Phytoremediation consists of a set of innovative technologies for environmental cleanup that takes advantage of the unique extractive and metabolic capabilities of plants. This technology presents clear benefits over traditional methods, including wide applicability, ecological value and cost-effectiveness. Whereas organic pollutants can be degraded to less toxic forms by plants, or even minera...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2005
Tamas Komives Gábor Gullner

Phytoremediation uses living higher plants for the removal and biochemical decomposition of environmental pollutants. In this paper Phase I metabolic pathways in the biotransformation reactions of organic pollutants in plants are reviewed. These reactions result in the introduction of functional groups in the xenobiotic molecule or the exposure of preexisting functional groups and lead to the f...

Journal: :Roczniki Panstwowego Zakladu Higieny 2008
Martin Rose Jerzy Falandysz

This article discusses the topics and ideas presented at the Special Session of the conference Dioxin 2008 (28th International Symposium on Halogenated Environmental Organic Pollutants and POPs) titled: "Emerging POPs". The session was devoted to emerging and re-emerging compounds or groups of compounds identified recently as environmental contaminants and classified as dioxin-like compounds or...

Journal: :Chemosphere 2001
J R Baker J R Mihelcic A Sabljic

Several recent studies have shown that n-octanol/water partition coefficients may not be a good predictor for estimating soil sorption coefficients of persistent organic pollutants (POPs), defined here as chemicals with log Kow greater than 5. Thus, an alternative QSAR model was developed that seems to provide reliable estimates for the soil sorption coefficients of persistent organic pollutant...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2011
Karin Björklund Ann-Margret Strömvall Per-Arne Malmqvist

Snowmelt is known to cause peak concentrations of pollutants, which may adversely affect receiving water quality. High concentrations of metals and suspended solids in snow have been reported, whereas studies on organic pollutants are rare. This study aims at investigating the occurrence of anthropogenic organic compounds in urban snow in Gothenburg (Sweden). The most frequently detected organi...

2012
Rudolf Kiralj

Even small areas as Bjelovar-Bilogora County (BBC) are affected by increasing local and regional pollution. A large variety of organic compounds exists in all parts of the atmosphere, waters and soil, accumulates in living organisms and on anthropogenic objects. This work investigates organic pollutants in BBC in relation to their spread, behavior and chemical properties, based on literature da...

Journal: :iranian journal of catalysis 2015
leila vafayi soodabe gharibe

in this work, zno/sio2 nanoparticles were prepared using sol-gel method, and platinum particles were loaded on zno/sio2 nanoparticles by photoreductive method. samples were characterized by x-ray diffraction (xrd), scanning electron microscopy (sem) and fourier transform infrared spectroscopy (ft-ir). the xrd patterns showed that the zinc oxide samples have a wurtzite structure (hexagonal phase...

2018
Yaxin Deng Tao Zhang Qiming Wang

Biochar, as an high efficiency, environmental friendly, and low-cost adsorbent, is usually used as soil conditioner, bio-fuel, and carbon sequestration regent. Recently, biochar has attracted much attention in wastewater treatment field. There are plenty of studies about application of biochar to adsorb pollutants in wastewater, because of its low-cost preparation, high surface area, large pore...

This study investigated pollutants emissions from filling stations and their impact on the air quality. Gas monitors were employed to identify the different pollutants present in the ambient air of the study areas. The results showed that the most prominent pollutants present in the ambient air are the volatile organic compounds followed by methane, then carbon monoxide. Measurements were taken...

Journal: :Journal of the Mexican Chemical Society 2017

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید