نتایج جستجو برای: phenanthrene anthracene
تعداد نتایج: 5553 فیلتر نتایج به سال:
Knowledge of transport and degradation of polycyclic aromatic hydrocarbons (PAHs) is important in assessing PAH contamination of soils and water resources. The transport of naphthalene, anthracene, pyrene and phenanthrene was determined in a contaminated calcareous soil obtained from the Shadegan wetland (Khozestan, Iran) considering a column study in laboratory conditions. The PAHs were added ...
Background and purpose: Petroleum hydrocarbons might have a natural origin, but human activity is the main source of these pollutants in the environment. This study was done to determine the origin of n-alkanes and PAHs in surface sediments of the southeastern coast of the Caspian Sea. Materials and methods: A total of 12 sediment samples from six stations in Noshahr and Amir Abad ports wer...
Context. The vacuum ultraviolet (VUV) photoprocessing of polycyclic aromatic hydrocarbons (PAHs) has been established as a key piece the puzzle to understand life cycle carbon-based molecules in space. recent detection cyano (CN) species, with unexpectedly high abundance, motivated current study investigating their interaction UV/VUV radiation. Aims. aims were investigate fate, after VUV photoe...
In this study, the degradation potential of five polycyclic aromatic hydrocarbons (PAHs) by aerobic mixed bacterial cultures was investigated. Microorganisms were isolated from hydrocarbon contaminated soils of Shadegan wetland located in southwest of Iran. The degradation experiments were conducted in liquid cultures. PAH or PAHs concentration was 100 mg/L at the beginning of degradation e...
In order to better understand land application of sewage sludge, the characterization of heavy metals, PCDD/F and PAHs in sewage sludge was investigated from six different wastewater treatment plants (WWTP) in Beijing City, China. It was found that the total concentrations of Zn in Wujiacun (WJC) sewage sludge, and Cd and Hg in sewage sludge generated from all of the six different places are hi...
Airborne fine particulate matter (PM2.5) pollution is known to have adverse effects on human health, and owing their carcinogenic mutagenic nature, polycyclic aromatic hydrocarbons (PAHs) are of particular concern. This study investigated the effect ultraviolet (UV)-induced photocatalysis degradation PAHs in PM2.5, employing titanium dioxide (TiO2)-supporting quartz fibre filters. A TiO2 layer ...
Rhizodegradation is one of the best methods for effective removal dangerous polycyclic aromatic hydrocarbons pollutants from soil. This operative due to high persistent, non-bioavailability nature PAHs and combined, sequential reactions bacteria present in rhizosphere plants. We have conducted pot-culture method study degradation three compounds namely phenanthrene, anthracene pyrene artificial...
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