Development of Bermuda grass (Cynodon dactylon) seedlings in the diesel-contaminated soil

被引：3

作者：

Lin, Yu-Hong ^{[1
]}

Lay, Jiunn-Jyi ^{[2
]}

Shieh, Wen K. ^{[3
]}

机构：

[1] Institute of Engineering Science and Technology, National Kaohsiung First University of Science and Technology, Kaohsiung,811, Taiwan

[2] Energy Research Center, National Kaohsiung First University of Science and Technology, Kaohsiung,811, Taiwan

[3] Department of Chemical and Biomolecular Engineering, University of Pennsylvania, 220 South 33rd Street, Philadelphia,PA,19104-6393, United States

来源：

International Journal of Environmental Engineering | 2020年 / 10卷 / 03期

关键词：

Molecules - Soils - Soil pollution - Diesel engines - Hydrocarbons;

D O I：

10.1504/IJEE.2020.107420

中图分类号：

学科分类号：

摘要：

The development of Bermuda grass seedlings in diesel-contaminated soil was appraised at the concentrations from 0 to 40 mg TPH/g soil (TPH: Total petroleum hydrocarbons). The seedlings emerged out of the soil one week after the planting of seeds that remained unchanged over the range of concentrations tested. The seedlings grew at a reduced rate during the six-week period when tested at 10 mg TPH/g soil without triggering additional removal of diesel. The adverse effects of diesel appeared at the concentration ≥ 20 mg TPH/g soil. Sporolactobacillus sp., Prevotella sp., and Clostridium sp. were effective degraders of hydrocarbons with 1 to 6 carbons per molecule, but their additions neither increase nor accelerate the development of seedlings. Hydrocarbons with ≥ 7 carbon atoms per molecule were likely to remain in the bacteria-treated soil, and the impacts of these hydrocarbons on the seedlings emerged at ≥ 4 mg TPH/g soil. Soil pH at 7.2 to 7.4 was adequate. © 2020 Inderscience Enterprises Ltd.

引用

页码：209 / 220