ORIGINAL RESEARCH
Removal Efficiency and the Mineralization
Mechanism During Enhanced Bioventing
Remediation of Oil-Contaminated Soils
Jianli Jia1, Shenwei Zhao1, Lei Hu1, Yapeng Wang1,2, Linying Yao1,
Ying Liu3, Zhipo Yuan1
1School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing, China
2School of Environment, Tsinghua University, Beijing, China
3Yanqing Country Water Authority, Beijing, China
2School of Environment, Tsinghua University, Beijing, China
3Yanqing Country Water Authority, Beijing, China
Submission date: 2016-03-15
Final revision date: 2016-05-27
Acceptance date: 2016-05-27
Publication date: 2016-10-05
Pol. J. Environ. Stud. 2016;25(5):1955–1963
KEYWORDS
TOPICS
ABSTRACT
The environmental challenge of crude oil-contaminated soil is difficult to address due to its complicated
components and the mechanism of material transformation. In order to study the bioremediation of soil
contaminated by crude oil, we designed five simulation test systems: a sterilization system, an oxygenated
and water-controlled system, a nitrogen (N)/phosphorus (P) adjusted system, a broth-added system, and a
double-broth-added system. The results show that the highest removal of crude oil from soil was increased
to 34.23% by regulating the micro-ecological environment after 91 days in a simulation system. Regulating
N and P can effectively strengthen the mineralization action of microorganisms on crude oil. Biodegradation
had the most effect on the removal of oil, accounting for more than 58% of the total removal. Moreover,
mineralization was dominant in biodegradation. Degradation of crude oil components was alkanes-based,
accounting for 50 to 80% of total oil removal. By regulating moisture, temperature, oxygen content, N/P
levels, and enrichment broth, the half-life of crude oil in a simulation system can be shortened to 182 days.
RELATED ARTICLE
We process personal data collected when visiting the website. The function of obtaining information about users and their behavior is carried out by voluntarily entered information in forms and saving cookies in end devices. Data, including cookies, are used to provide services, improve the user experience and to analyze the traffic in accordance with the Privacy policy. Data are also collected and processed by Google Analytics tool (more).
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.