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Title: Laboratory and greenhouse assessment of phytoremediation of petroleum contaminated soils

Abstract

Phytoremediation of soils contaminated with petroleum and associated priority pollutants was evaluated in greenhouse and laboratory experiments. Mineralization of several PAHs was measured in rhizosphere soil, non-rhizosphere soil, and sterile soil amended with simulated root exudates. The least amount of mineralization was observed in sterile soil, but there were no differences among all other soils. Mineralization of 14 C-benzo[a]pyrene was determined in chambers to determine the effects of tall fescue on dissipation of this compound. After 180 days, the soils with fescue had more than twice the mineralization than soils without plants. In the soils with plants, evolution of 14CO2 from the soil was five times greater than from the plant biomass. These experiments demonstrate that the presence of plants is a necessary part of the phytoremediation process. There appears to be no residual rhizosphere effect, and the simple exudation of organic compounds does not mimic fully the presence of roots.

Authors:
; ;  [1]
  1. Kansas State Univ., Manhattan, KS (United States)
Publication Date:
OSTI Identifier:
538938
Report Number(s):
CONF-960807-
TRN: 97:004029-0005
Resource Type:
Conference
Resource Relation:
Conference: 212. national meeting of the American Chemical Society (ACS), Orlando, FL (United States), 25-30 Aug 1996; Other Information: PBD: 1996; Related Information: Is Part Of 212th ACS national meeting; PB: 1830 p.
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 54 ENVIRONMENTAL SCIENCES; SOILS; REMEDIAL ACTION; MINERALIZATION; PETROLEUM; ORGANIC COMPOUNDS; POLLUTANTS; PLANTS; PYRENE; GRAMINEAE; POLLUTION CONTROL; OIL SPILLS; UPTAKE

Citation Formats

Banks, M K, Schwab, A P, and Wang, X. Laboratory and greenhouse assessment of phytoremediation of petroleum contaminated soils. United States: N. p., 1996. Web.
Banks, M K, Schwab, A P, & Wang, X. Laboratory and greenhouse assessment of phytoremediation of petroleum contaminated soils. United States.
Banks, M K, Schwab, A P, and Wang, X. 1996. "Laboratory and greenhouse assessment of phytoremediation of petroleum contaminated soils". United States.
@article{osti_538938,
title = {Laboratory and greenhouse assessment of phytoremediation of petroleum contaminated soils},
author = {Banks, M K and Schwab, A P and Wang, X},
abstractNote = {Phytoremediation of soils contaminated with petroleum and associated priority pollutants was evaluated in greenhouse and laboratory experiments. Mineralization of several PAHs was measured in rhizosphere soil, non-rhizosphere soil, and sterile soil amended with simulated root exudates. The least amount of mineralization was observed in sterile soil, but there were no differences among all other soils. Mineralization of 14 C-benzo[a]pyrene was determined in chambers to determine the effects of tall fescue on dissipation of this compound. After 180 days, the soils with fescue had more than twice the mineralization than soils without plants. In the soils with plants, evolution of 14CO2 from the soil was five times greater than from the plant biomass. These experiments demonstrate that the presence of plants is a necessary part of the phytoremediation process. There appears to be no residual rhizosphere effect, and the simple exudation of organic compounds does not mimic fully the presence of roots.},
doi = {},
url = {https://www.osti.gov/biblio/538938}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 31 00:00:00 EST 1996},
month = {Tue Dec 31 00:00:00 EST 1996}
}

Conference:
Other availability
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