نتایج جستجو برای: total petroleum hydrocarbon (tph )
تعداد نتایج: 832727 فیلتر نتایج به سال:
due to the location of a domestic, industrial and agricultural zone near the caspian sea, this water body has long been under pressure and environmental threat. as a result of development of oil production activities in caspian region, such as oil exploration and extraction, a large volume of oil related pollutants is released annually into this important water body. considering the fact that h...
Traditionally, hydrocarbon-impacted soils at E&P sites have been managed based on their total petroleum hydrocarbon (TPH) content. Oil and gas industry guidance on TPH clean-up concentrations at E&P sites was not based upon risk to human health; rather, it was based on the protection of plants and water resources [API, 1993; Currier and Peoples, 1954; Udo, et al., 1975; Baker, 1970; deOng, et a...
Fossil fuels are used throughout the United States Antarctic Program. Accidental releases of petroleum hydrocarbons are the leading source of environmental contamination. Since 1999 McMurdo Station has been the site of the most extensive environmental monitoring programme in Antarctica. Nearly 2500 surface soil samples were collected from 1999–2007 to determine the spatial ‘‘footprint’’ of petr...
Rhizoremediation involves the breakdown of contaminants in soil resulting from microbial activity that is enhanced in the plant root zone. The objective of this study was to assess Australian native grasses for their ability to stimulate removal of aliphatic hydrocarbons from a mine site soil. Time-course pot experiments were conducted in a greenhouse with three grass species (Cymbopogon ambigu...
The present study reports the level of total petroleum hydrocarbon (TPH) in 27 commercially important fish, crustaceans and cephalopods from Orissa coast, Bay of Bengal to provide the baseline data for oil contamination in marine biota. The results showed significant differences in the TPH concentration in different species. Of all fish, Carangoides malabaricus showed the maximum TPH level (av....
The measurement of total oil and grease (TOG) and total petroleum hydrocarbon (TPH) in water and soil samples by means of infrared (IR) absorption is a widely used analytical procedure. It is relatively easy to use, requires little ancillary equipment and is sensitive enough to provide data on TOG and TPH content in the range of permissible concentration levels. Furthermore, IR instrumentation ...
In the United States, petroleum extraction, refinement, and transportation present countless opportunities for spillage mishaps. A method for rapid field appraisal and mapping of petroleum hydrocarbon-contaminated soils for environmental cleanup purposes would be useful. Visible near-infrared (VisNIR, 350-2500 nm) diffuse reflectance spectroscopy (DRS) is a rapid, nondestructive, proximal-sensi...
We determined how a cleaner and a dispersant affected hydrocarbon biodegradation in wetland soils dominated by the plant Panicum hemitomon, which occurs throughout North and South America. Microcosms received no hydrocarbons, South Louisiana crude, or diesel; and no additive, a dispersant, or a cleaner. We determined the concentration of four total petroleum hydrocarbon (TPH) measures and 43 ta...
This work was aimed at evaluating the relative merits of bioaugmentation, biostimulation and surfactant-enhanced bioavailability of a desert soil contaminated by crude oil through biopile treatment. The results show that the desert soil required bioaugmentation and biostimulation for bioremediation of crude oil. The bioaugmented biopile system led to a total petroleum hydrocarbon (TPH) reductio...
Petroleum hydrocarbons had affected site soils at three separate locations over the estimated area of approximately 32,000 sq. ft. The depth of contamination varied from 3 feet in two areas to over 20 ft. in the area next to the retaining wall. Total Petroleum Hydrocarbon (TPH) concentrations ranged from less than 50 ppm up to 11,000 ppm with levels varying from the surface to the groundwater t...
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