Polychlorinated biphenyls plants

Narasimhan, K., Basheer, C., Bajic, V.B., Swarup, S. Enhancement of plant-microbe interactions using a rhizosphere metabolomics-driven approach and its application in die removal of polychlorinated biphenyls. Plant Physiol 2003 132 146-153. 

Extraction, employs a liquid solvent to remove certain compounds from another liquid using the preferential solubility of these solutes in the MSA. For instance, wash oils can be used to remove phenols mid polychlorinated biphenyls (PCBs) from die aqueous wastes of synthetic-fuel plants and chlorinated hydrocarbons from organic wastewater. 

Gilbert ES, DE Crowley (1997) Plant compounds that induce polychlorinated biphenyl degradation by Arthro-bacter sp. strain BIB. Appl Environ Microbiol 63 1933-1938. 

Aparicio I, Santos JL, Alonso E (2007) Simultaneous sonication-assisted extraction, and determination by gas chromatography-mass spectrometry, of di-(2-ethylhexyl)phthalate, nonylphenol, nonylphenol ethoxylates and polychlorinated biphenyls in sludge from waste-water treatment plants. Anal Chim Acta 584 455 161... 

Pal, D., J.B. Weber, and M.R. Overcash. 1980. Fate of polychlorinated biphenyls (PCBs) in soil-plant systems. Residue Rev. 74 45-98. 

Following an aviation kerosin spill, hydrocarbons were detected in trout stream sediments and fish up to 14 months after the spill [13]. After a fire at a weed treatment plant in 1970 a large area of mixed forested ecosystem became contaminated with polycyclic aromatic hydrocarbons and creosote [66], High polyaromatic concentrations in stream sediments adversely affected micro- and meiobenthic communities at all trophic levels. Stein et al. [67] have studied the uptake by bethnic fish (English sole, Parophrys vetulus) of benzopyrene and polychlorinated biphenyls from sediments. Accumulation of contaminants from sediments was a significant route of uptake by English sole. 

Acquevella JF et al Assessment of clinical, metabolic, dietary, and occupational correlations with serum polychlorinated biphenyl levels among employees at an electric capacitor manufacturing plant. J Occup Med 28 1177-1180, 1986... 

SPI Division Level 3 and 4 LTTD systems have been designed and manufactured for thermal treatment of soils contaminated with polycychc aromatic hydrocarbons (PAHs), including coal tars from former manufactured gas plant (MGP) sites. When equipped with acid-scrubbing systems, these LTTD systems have been utilized in treatment of soils contaminated with a wide range of chlorinated hydrocarbons including industrial solvents and degreasers, pesticides, herbicides, and polychlorinated biphenyls (E CBs). 

The CSP technology can treat a wide variety of soils contaminated with tars, fuel oils, halogenated solvents, polychlorinated biphenyls (PCBs), polyaromatic hydrocarbons (PAHs), cyanides, phenols, and heavy metals. The CSP technology s use of coal as a cleaning medium makes it particularly useful for treating soils contaminated by manufactured gas plants. 

Carvone is a chemical component of the spearmint plant that has been shown to enhance the growth and ability of Arthrobacter bacteria to degrade polychlorinated biphenyl (PCB). Until this discovery the only known method of strmnlating the bioremediation of PCBs was addition of biphenyl to the soil however, biphenyl is itself a toxic snbstance. 

This type of induction is caused by a large group of environmental chemicals, both natural such as plant indoles and man made such as polycyclic hydrocarbons. Examples include benzo [a]pyrene, benzo[a]anthracene, 3-methylcholanthrene, p-napthoflavone, polychlorinated biphenyls and benzo-p-dioxins, and dibenzofurans. Many of these compounds are of interest as they are carcinogenic. 

Komp, P., and M. S. McLachlan, Interspecies variability of the plant/air partitioning of polychlorinated biphenyls , Environ. Sci. Technol., 31, 2944-2948 (1997b). 

Cultures are being found that can degrade both polychlorinated biphenyls and petroleum hydrocarbons. There is also interest in the role of rhizosphere organisms in polychlorinated biphenyl degradation, particularly since some plants exude phenolic compounds into the rhizosphere that can stimulate the aerobic degradation of the less chlorinated biphenyls. 

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