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Li C, Mei T, Song TS, Xie J. Removal of petroleum hydrocarbon-contaminated soil using a solid-phase microbial fuel cell with a 3D corn stem carbon electrode modified with carbon nanotubes. Bioprocess Biosyst Eng 2022; 45:1137-1147. [PMID: 35624323 DOI: 10.1007/s00449-022-02730-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 04/15/2022] [Indexed: 11/02/2022]
Abstract
Solid-phase microbial fuel cell (SMFC) can accelerate the removal of organic pollutants through the electrons transfer between microorganisms and anodes in the process of generating electricity. Thus, the characteristics of the anode material will affect the performance of SMFCs. In this study, corn stem (CS) is first calcined into a 3D macroporous electrode, and then modified with carbon nanotubes (CNTs) through electrochemical deposition method. Scanning electron microscope analysis showed the CS/CNT anode could increase the contact area on the surface. Furthermore, electrochemical impedance spectroscopy and cyclic voltammetry analysis indicated the electrochemical double-layer capacitance of the CS/CNT anode increased while its internal resistance decreased significantly. These characteristics are crucial for increasing bacterial adhesion capability and electron transfer rate. The maximum output voltage of the SMFC with CS/CNT anode was 158.42 mV, and the removal rate of petroleum hydrocarbon (PH) reached 42.17%, 2.72 times that of unmodified CS. In conclusion, CNT-modified CS is conducive to improve electron transfer rate and microbial attachment, enhancing the removal efficiency of PH in soil.
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Affiliation(s)
- Chenrong Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 211816, People's Republic of China.,College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, People's Republic of China
| | - Ting Mei
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 211816, People's Republic of China.,College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, People's Republic of China
| | - Tian-Shun Song
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 211816, People's Republic of China. .,College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, People's Republic of China. .,State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing, 210093, Jiangsu, China.
| | - Jingjing Xie
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 211816, People's Republic of China. .,College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, People's Republic of China. .,Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing, 211816, People's Republic of China.
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Cui Z, Luan X, Li S, Zhao X, Lin Z, Li J, Gao W, Zheng L, Ma Z, Xie J. Genotoxicity detection of oil-containing drill cuttings by Comet assay based on a demersal marine fish Mugilogobius chulae. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111655. [PMID: 33396169 DOI: 10.1016/j.ecoenv.2020.111655] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/23/2020] [Accepted: 11/11/2020] [Indexed: 06/12/2023]
Abstract
An enormous amount of oil-containing drill cuttings have been produced by the marine oil and gas industry. The environmental impacts of discharged drilling waste have been extensively studied. However, there is still an urgent need to develop alternative methods to identify the genotoxicity of untreated and treated drill waste in a timely manner before it is discharged. In this study, we developed a relatively rapid, sensitive, and accurate genotoxicity-detection method using Comet assay and the marine benthic goby Mugilogobius chulae. This goby is sensitive to a standard toxicant mitomycin C (MMC). The optimal exposure period for genotoxicity detection using M. chulae was determined. Three genotoxic indices (tail length (TL), tail DNA content (TD), and tail moment (TM)) were used to assess the effectiveness of high-temperature treatment of oil-contaminated waste. Untreated oil-containing drill cuttings exhibited the highest genotoxicity to goby cells. Genotoxicity was dramatically reduced after thermal treatment of drill cuttings at 350 °C and 500 °C. TD and TM exhibited significant correlation with the concentration of total petroleum hydrocarbons (TPHs)/total polycyclic aromatic hydrocarbons (PAHs) according to Pearson and Mantel correlation analyses (P values were <0.05). Using redundancy analysis (RDA) and variation partition analysis (VPA), the genotoxic effects of the drill cuttings were ascribed to total alkanes and specific groups of PAHs. In conclusion, this newly established biological model has the potential to be widely used to detect the genetic damage of untreated or treated oil-containing drill cuttings discharged into the marine environment.
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Affiliation(s)
- Zhisong Cui
- Marine Bioresources and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources of China, Qingdao 266061, People's Republic of China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, People's Republic of China.
| | - Xiao Luan
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People's Republic of China
| | - Shujun Li
- Marine Bioresources and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources of China, Qingdao 266061, People's Republic of China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, People's Republic of China
| | - Xilong Zhao
- Marine Bioresources and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources of China, Qingdao 266061, People's Republic of China
| | - Zhongting Lin
- Key Laboratory of Guangdong Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou 510663, People's Republic of China
| | - Jianjun Li
- Key Laboratory of Guangdong Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou 510663, People's Republic of China
| | - Wei Gao
- Marine Bioresources and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources of China, Qingdao 266061, People's Republic of China
| | - Li Zheng
- Marine Bioresources and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources of China, Qingdao 266061, People's Republic of China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, People's Republic of China
| | - Zhengzhao Ma
- China Offshore Environmental Service Co. Ltd., CNOOC Energy Technology & Services Ltd., China National Offshore Oil Corp., Tianjin 300452, People's Republic of China
| | - Jianghao Xie
- China Offshore Environmental Service Co. Ltd., CNOOC Energy Technology & Services Ltd., China National Offshore Oil Corp., Tianjin 300452, People's Republic of China
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Han B, Zheng L, Gao W, Li Q, Cui Z, Wang S. Screening and validation of new diagnostic ratios of dibenzothiophenes and fluorenes for identification of seriously weathered oil spills. ENVIRONMENTAL TECHNOLOGY 2021; 42:1-8. [PMID: 31120364 DOI: 10.1080/09593330.2019.1619843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 05/08/2019] [Indexed: 06/09/2023]
Abstract
Fingerprinting technique is a universal method for tracing oil spill. It is usually achieved by means of diagnostic ratios (DRs) of biomarkers. In the process of severely weathering, the important components usually change greatly and the relevant diagnostic ratios may also change. Therefore, it is more difficult to trace severely weathered oil to its source. On 22 November 2013, the huge explosion of Sinopec pipeline occurred in Qingdao, China. The beaches near the explosion site were contaminated and damaged by oil spills. After the explosion, an actual weathering experiment was carried out on an oil-polluted beach. The original and weathered spilled oil samples have been collected from this site. Synchronized with actual coastal weathering, a 360-day Lab simulated weathering experiment was carried out using the sampled original oil spill samples. According to data analysis techniques including similarity, t-test method and repeatability limit analysis, 27 new diagnostic ratios of dibenzothiophenes and fluorenes in the weathered oil samples were selected and verified. 6 of them maintained good stability during both of the simulated and actual weathering process. It is recommended that these stable DRs be used for tracing the source of severely weathered oil spills to promote the efficiency and accuracy.
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Affiliation(s)
- Bin Han
- Key Laboratory for Marine Bioactive Substances and Modern Analytical Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, People's Republic of China
- Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, People's Republic of China
| | - Li Zheng
- Key Laboratory for Marine Bioactive Substances and Modern Analytical Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, People's Republic of China
- Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, People's Republic of China
| | - Wei Gao
- Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, People's Republic of China
| | - Qian Li
- Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, People's Republic of China
| | - Zhisong Cui
- Key Laboratory for Marine Bioactive Substances and Modern Analytical Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, People's Republic of China
- Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, People's Republic of China
| | - Shuai Wang
- Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, People's Republic of China
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