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Distribution of bacteria in a PCE-co...

Toquica Diaz, Sandra Patricia.

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Distribution of bacteria in a PCE-contaminated pilot aquifer during bioremediation.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Distribution of bacteria in a PCE-contaminated pilot aquifer during bioremediation./
Author:	Toquica Diaz, Sandra Patricia.
Description:	126 p.
Notes:	Source: Masters Abstracts International, Volume: 45-03, page: 1380.
Contained By:	Masters Abstracts International45-03.
Subject:	Biology, Microbiology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR21166
ISBN:	9780494211663

Distribution of bacteria in a PCE-contaminated pilot aquifer during bioremediation.
Toquica Diaz, Sandra Patricia.

Distribution of bacteria in a PCE-contaminated pilot aquifer during bioremediation. - 126 p.

Source: Masters Abstracts International, Volume: 45-03, page: 1380.

Thesis (M.Sc.)--University of Toronto (Canada), 2006.

This research characterized bacterial distribution in a side-by-side pilot aquifer comparison of natural attenuation (NA), biostimulation with lactate and methanol (ST), and bioaugmentation with a dechlorinating culture (AU) for the remediation of tetrachloroethene-contaminated groundwater. Quantitative PCR methods were used to evaluate the fate of a dechlorinating species, Dehalococcoides, more than two years post-inoculation, once a starvation period finished through tetrachloroethene-sources replenishment. Greater and more widespread growth of Dehalococcoides in AU than ST emphasized its persistence and quick recovery through fluctuating environmental conditions. Geobacter, another dechlorinating species, presented a more limited distribution in ST than AU. Neither species were present in NA. PCR-DGGE patterns were used to evaluate the impact of the treatments on the planktonic/sessile microbial communities. Biostimulation affected the planktonic community composition nearest the feeding site, whereas bioaugmentation affected both sessile and planktonic community compositions nearest the injection/feeding site. Finally, NA did not affect either microbial community significantly.

ISBN: 9780494211663Subjects--Topical Terms:

1017734
Biology, Microbiology.

Distribution of bacteria in a PCE-contaminated pilot aquifer during bioremediation.
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100 1 $a Toquica Diaz, Sandra Patricia. $3 1297357
245 1 0 $a Distribution of bacteria in a PCE-contaminated pilot aquifer during bioremediation.
300 $a 126 p.
500 $a Source: Masters Abstracts International, Volume: 45-03, page: 1380.
502 $a Thesis (M.Sc.)--University of Toronto (Canada), 2006.
520 $a This research characterized bacterial distribution in a side-by-side pilot aquifer comparison of natural attenuation (NA), biostimulation with lactate and methanol (ST), and bioaugmentation with a dechlorinating culture (AU) for the remediation of tetrachloroethene-contaminated groundwater. Quantitative PCR methods were used to evaluate the fate of a dechlorinating species, Dehalococcoides, more than two years post-inoculation, once a starvation period finished through tetrachloroethene-sources replenishment. Greater and more widespread growth of Dehalococcoides in AU than ST emphasized its persistence and quick recovery through fluctuating environmental conditions. Geobacter, another dechlorinating species, presented a more limited distribution in ST than AU. Neither species were present in NA. PCR-DGGE patterns were used to evaluate the impact of the treatments on the planktonic/sessile microbial communities. Biostimulation affected the planktonic community composition nearest the feeding site, whereas bioaugmentation affected both sessile and planktonic community compositions nearest the injection/feeding site. Finally, NA did not affect either microbial community significantly.
590 $a School code: 0779.
650 4 $a Biology, Microbiology. $3 1017734
690 $a 0410
710 2 0 $a University of Toronto (Canada). $3 1017674
773 0 $t Masters Abstracts International $g 45-03.
790 $a 0779
791 $a M.Sc.
792 $a 2006
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR21166