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Qian H, Zhang Y, Wang J, Si C, Chen Z. Characteristics of petroleum-contaminated groundwater during natural attenuation: a case study in northeast China. Environ Monit Assess 2018; 190:80. [PMID: 29332176 DOI: 10.1007/s10661-017-6449-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 12/28/2017] [Indexed: 06/07/2023]
Abstract
The objective of this study was to investigate a petroleum-contaminated groundwater site in northeast China. We determined the physicochemical properties of groundwater that contained total petroleum hydrocarbons (TPH) with a view to developing a scientifically robust strategy for controlling and remediating pollution of groundwater already contaminated with petroleum. Samples were collected at regular intervals and were analyzed for dissolved oxygen (DO), iron (Fe3+), sulfate (SO42-), electrical conductivity (Eh), pH, hydrogen carbonate (HCO3-), and enzyme activities of catalase (CAT), peroxidase (HRP), catechol 1,2-dioxygenase (C12O), and catechol 2,3-dioxygenase (C23O). We used factor analysis in SPSS to determine the main environmental characteristics of the groundwater samples. The results confirmed that the study site was slightly contaminated and that TPH levels were decreasing slightly. Some of the physicochemical variables showed regular fluctuations; DO, Fe3+, and SO42- contents decreased gradually, while the concentrations of one of the microbial degradation products, HCO3-, increased. Microorganism enzyme activities decreased gradually. The microbiological community deteriorated noticeably during the natural attenuation process, so microbiological degradation of pollutants receded gradually. The HCO3- content increased and the pH and Eh decreased gradually. The groundwater environment tended to be reducing.
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Affiliation(s)
- Hong Qian
- Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, People's Republic of China
- College of Environment and Resources, Jilin University, Changchun, 130021, People's Republic of China
- Institute of Water Resources and Environment, Jilin University, Changchun, 130021, People's Republic of China
- Yanbian Water Conservancy Bureaus, Yanbian, 133000, People's Republic of China
| | - Yuling Zhang
- Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, People's Republic of China.
- College of Environment and Resources, Jilin University, Changchun, 130021, People's Republic of China.
- Institute of Water Resources and Environment, Jilin University, Changchun, 130021, People's Republic of China.
| | - Jiali Wang
- Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, People's Republic of China
- College of Environment and Resources, Jilin University, Changchun, 130021, People's Republic of China
- Institute of Water Resources and Environment, Jilin University, Changchun, 130021, People's Republic of China
| | - Chaoqun Si
- Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, People's Republic of China
- College of Environment and Resources, Jilin University, Changchun, 130021, People's Republic of China
- Institute of Water Resources and Environment, Jilin University, Changchun, 130021, People's Republic of China
| | - Zaixing Chen
- Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, People's Republic of China
- College of Environment and Resources, Jilin University, Changchun, 130021, People's Republic of China
- Institute of Water Resources and Environment, Jilin University, Changchun, 130021, People's Republic of China
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