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|Table of Contents|

含盐量对石油污染土壤生物修复的影响(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2013年02期
Page:
108-112
Column:
研究论文
publishdate:
2013-03-31

Article Info:/Info

Title:
Effect of the salt contentin soil on bioremediation of soil by contaminated petroleum
Author(s):
QIN Xiao1 LI Desheng1*TANG Jingchun2 ZHANG Qingmin2GAO Jing1
1.College of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300384, China;
2.College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
Keywords:
petroleum-contaminated soil bioremediation soil salt content biostimulation bioaugmentation
Classification number :
X74; X53
DOI:
10.3969/j.issn.1000-2006.2013.02.019
Document Code:
A
Abstract:
This study attempts to analyze the effects of different concentrations of soil salinityon bioremediation of petroleum-contaminated soil using biostimulation appended bioaugmentation or not. The saline-alkali soil collected from Tianjin Dagang oilfield and leached several times by analog field irrigation. The results showed that both the bioremediationcould reduce the soil salt content and raise oil petroleum hydrocarbon degradation rate. When soil salt content on the degree of 0.22%, biostimulation appended bioaugmentation could raise oil degradation rate to 24.98% after 3 days remediation.When soil salt content was on the degree of 0.01%, after 28 days biostimulation, the degradation rate by using biostimulation appended bioaugmentation was 1.1 times higher than that using pure biostimulation. The degradation rate of the low salt content soil was 1.22 times higher than that of the high salt content soilunder biostimulation appended bioaugmentation treatment. As the incubation time extended, soil dehydrogenase activity gradually increased, while soil pH value declined and soil salinization improved. As soil environment improved, the species and amounts of microorganism increased.

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Last Update: 2013-03-31