Review
Environmental Sciences
Charles Chinyere Dike, Esmaeil Shahsavari, Aravind Surapaneni, Kalpit Shah, Andrew S. Ball
Summary: This review discusses the application of biochar in remediating petroleum hydrocarbon-contaminated soils, focusing on its potential as a biostimulation agent to enhance the degradation of hydrocarbons in soil. Biochar may increase degradation efficiency by enhancing microbial biomass. While biochar shows promise in remediating hydrocarbon-contaminated soils, there are still key questions that need to be addressed.
ENVIRONMENT INTERNATIONAL
(2021)
Article
Biotechnology & Applied Microbiology
Anish Saini, Dawit Nega Bekele, Sreenivasulu Chadalavada, Cheng Fang, Ravi Naidu
Summary: The study investigated the remediation of TPH in contaminated soil using EK treatment, finding reductions in TPH concentrations even at a depth of 24 cm and more significant remediation near the cathodes.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Environmental Sciences
Xingchun Li, Wei He, Meijin Du, Jin Zheng, Xianyuan Du, Yu Li
Summary: This paper analyzed the degradation pathways of petroleum hydrocarbon degradation bacteria, selected the best degradation pathways and corresponding enzymes, and used the Copeland method to determine the optimal inoculation program. The effectiveness of the chosen solution was verified to have the best overall degradation effect in repairing petroleum hydrocarbon contaminated sites.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Environmental Sciences
Zhenkun Xue, Rui Zuo, Fei Ding, Ziyi Wu, Minghao Pan, Weihai Cai, Yunxiang Xu, Jinshen Wang
Summary: The study investigated the mechanism and efficiency of using MISD for petroleum hydrocarbons removal through a pilot project. The results showed that both multistage steam distillation and carbon reinforcement could improve the remediation efficiency, with the pilot project using a multistage steam distillation process showing good removal results.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Emilio Ritore, Bruno Coquelet, Carmen Arnaiz, Jose Morillo, Jose Usero
Summary: This study determined the most effective surfactants for remediating gasoline and diesel-contaminated soil by integrating soil texture and organic matter information. Anionic surfactants showed better removal rates for hydrocarbons compared to non-ionic surfactants, with results suggesting preferential desorption on different hydrocarbon ranges.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Tong Zhang, Jujin Cheng, Hanyue Tan, Shuai Luo, Yuanyuan Liu
Summary: The study demonstrates that by separating soil particles by the size of 125 μm before elution, as high as 80% of petroleum hydrocarbons can be efficiently removed from contaminated soil using a surfactant mixture.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Teklit Gebregiorgis Ambaye, Francesca Formicola, Silvia Sbaffoni, Andrea Franzetti, Mentore Vaccari
Summary: This study investigates the role of adding rhamnolipid as a solution to microbial electrochemical technologies (MET) to enhance the oxidation of hydrophobic hydrocarbons. The results show that the addition of rhamnolipid significantly improves the oxidation of hydrophobic hydrocarbons and promotes the growth of specific bacteria in the MET system, thus improving soil remediation efficacy.
Article
Water Resources
Thomas E. McHugh, Lila M. Beckley, George E. DeVaull, Matthew A. Lahvis
Summary: There are currently over 62,000 petroleum-contaminated sites undergoing remediation in the United States. Understanding the attenuation rates of contaminants and the factors that influence them is crucial for effectively managing and closing these sites. Analysis of groundwater monitoring data in California suggests that both remediation efforts and natural biodegradation contribute to the remediation of these sites, preventing widespread impacts to public water supply wells.
GROUND WATER MONITORING AND REMEDIATION
(2022)
Article
Engineering, Environmental
Heng Liu, Manli Wu, Huan Gao, Zeliang Liu, Jinghua Gao, ShiJie Wang
Summary: This study investigated the effects of different nitrogen sources and microorganisms on the removal of hydrocarbons and conversion of nitrogen in aqueous environments. The results showed that the combination of NO3- -N and the Meyerozyma consortium exhibited better degradation of petroleum hydrocarbons and stimulated the activity of Stenotrophomonas. Hydrocarbon transformation and nitrogen balance analysis revealed the important roles of the Meyerozyma consortium and Stenotrophomonas in hydrocarbon degradation and nitrogen cycling.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Microbiology
Xuehao Zheng, Belay Tafa Oba, Chenbo Shen, Luge Rong, Bin Zhang, Ling Huang, Lujie Feng, Jiani Liu, Tiantian Du, Yujie Deng
Summary: This study established six different surfactant-enhanced microbial remediation treatments on petroleum hydrocarbon-contaminated soil. The results showed that rhamnolipid-enhanced Bacillus methylotrophicus remediation achieved the highest removal rate. The assembly process of bacterial communities was found to be impacted by deterministic factors, and a significant positive correlation was observed between the deterministic assembly process and the removal rate of petroleum hydrocarbons.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Zhan Chen, Yu-Lin Wu, Tao Li, Yi-Xiang Wang, Ling-Kang Xuan, Shi-Feng Lu
Summary: This study presents a systematic in-situ remediation case of petroleum hydrocarbon-contaminated groundwater in China. By regulating and optimizing operational measures, the clean-up goal and intervention value were achieved, and the tailing rebound effect was solved. Groundwater monitoring played an important role in improving the pertinence of pumping-and-injection measures. The results provide a useful reference case for remediation of similar sites.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Environmental
Emilio Ritore, Jose Morillo, Carmen Arnaiz, Bruno Coquelet, Jose Usero
Summary: The aim of this research is to investigate the effectiveness of Fenton reaction, permanganate and persulfate oxidation as in-situ remediation technologies for gasoline-diesel contaminated soil. The influence of soil texture and organic matter on these oxidants is studied, while the different fractions of hydrocarbons are analyzed and categorized into aliphatic and aromatic hydrocarbons. Permanganate shows the highest removal rate (74%), followed by persulfate (60%) and hydrogen peroxide (55%). High levels of clay and soil organic matter decrease the oxidizing efficiency of permanganate. Moreover, the removal rates of hydrocarbons decrease with higher hydrocarbon size, and aromatic hydrocarbons are more easily oxidized than aliphatic ones.
ENVIRONMENTAL ENGINEERING RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
K. F. Hsia, C. C. Chen, J. H. Ou, K. H. Lo, Y. T. Sheu, C. M. Kao
Summary: Petroleum hydrocarbons are common pollutants in groundwater, and enhanced bioremediation using sulfate-reducing biobarrier containing sulfate-releasing materials (SRMs) has proven to be an effective and cost-efficient method for cleanup. The optimal sulfate release rate can promote sulfate reduction processes and enhance the remediation of petroleum hydrocarbons. Additionally, the use of SRMs can lead to the detection of bacterial strains with sulfate reduction and petroleum hydrocarbon biodegradation functions, indicating the potential for in situ remediation of petroleum-hydrocarbon plumes.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Junlong Yu, Ruyue Li, Xiuxia Zhang, Yi Du, Ruojun Ma, Xiaodong Zhao, Shuai Zuo, Kangning Dong, Ruirui Wang, Yupeng Zhang, Yingying Gu, Juan Sun
Summary: The use of surfactant-modified compost sludge as a carrier to immobilize high-efficiency petroleum hydrocarbon-degrading bacteria for remediation of hydrocarbon-contaminated soil was studied. The results showed that the modified compost sludge enhanced the adsorption capacity to petroleum hydrocarbons, and the immobilized microorganisms had a positive effect on soil remediation. Furthermore, the immobilized materials also increased the diversity of microbial communities in the soil.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Dan Li, Zhenxian Yao, Tao Jin, Shaomeng Huang, Liping Wang
Summary: The low-dose Fe2+/Na2S2O8-Enterobacter himalayensis GZ6 process is an effective method for the green and sustainable remediation of organic contaminated soil. The addition of persulfate (PS) for oxidation significantly reduced the concentration of total petroleum hydrocarbon (TPH) in the soil. Enterobacter himalayensis GZ6 played a vital role in the middle stage of remediation and activated the indigenous dominant microbial communities.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Saeid Shafieiyoun, Neil R. Thomson
JOURNAL OF HAZARDOUS MATERIALS
(2019)
Article
Engineering, Chemical
Stuart Linley, Neil R. Thomson, Kevin McVey, Kanwartej Sra, Frank X. Gu
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2020)
Article
Water Resources
Sara Esmaeili, Neil R. Thomson, David L. Rudolph
CANADIAN WATER RESOURCES JOURNAL
(2020)
Article
Environmental Sciences
Michelle S. Cho, Zhanfeng Zhao, Neil R. Thomson, Walter A. Illman
JOURNAL OF CONTAMINANT HYDROLOGY
(2020)
Article
Environmental Sciences
Stuart Linley, Neil R. Thomson, Kevin McVey, Kanwartej Sra, Frank X. Gu
Editorial Material
Water Resources
Neil R. Thomson
GROUND WATER MONITORING AND REMEDIATION
(2020)
Article
Water Resources
David Stevenson, Felipe Solano, Yunxiao Wei, Neil R. Thomson, James F. Barker, J. F. Devlin
GROUND WATER MONITORING AND REMEDIATION
(2020)
Review
Environmental Sciences
Stuart Linley, Neil R. Thomson
Summary: Environmental remediation has been transformed by the integration of engineered nanoscale materials over the past two decades. The rapid growth of nanotechnology in environmental applications signifies its importance, with challenges mainly addressed through chemical reactions or adsorption processes. While these fields share treatment mechanisms, the unique challenges in implementation require specific solutions.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Environmental Sciences
Stuart Linley, Adrian Mellage, Neil R. Thomson, Philippe Van Cappellen, Fereidoun Rezanezhad
Summary: The study focuses on using non-invasive geo-electrical techniques to monitor the spatial migration and attachment behavior of nanomaterials in soil and aquifer media.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Saeid Shafieiyoun, Anh Le-Tuan Pham, Neil R. Thomson
Summary: This study investigates the impacts of the interaction between persulfate and nonaqueous phase liquid (NAPL). The results show that the reaction between persulfate and NAPL can lead to the formation of precipitates and organic byproducts. The formation of precipitates affects the dissolution rate, while the organic byproducts may migrate into the NAPL, affecting its physical properties and composition.
REMEDIATION-THE JOURNAL OF ENVIRONMENTAL CLEANUP COSTS TECHNOLOGIES & TECHNIQUES
(2022)
Article
Water Resources
Kanwartej S. Sra, Violaine Ponsin, Ravi Kolhatkar, Daniel Hunkeler, Neil R. Thomson, Eugene L. Madsen, Timothy Buscheck
Summary: Delivery of sulfate to petroleum hydrocarbons (PHCs) source zones and groundwater plumes enhances biodegradation rates, as confirmed in this study by investigating sulfate reduction processes and its effect on the degradation of benzene and toluene.
GROUND WATER MONITORING AND REMEDIATION
(2023)
Article
Environmental Sciences
Najmeh Jaberi, Stuart Linley, Neil R. Thomson, Kevin McVey, Kanwartej Sra, Frank X. Gu
Summary: The study investigated the impact of water saturation, flow rate, input dosage, and porous medium texture on the transport of engineered nanoparticles in unsaturated conditions. Results showed variations in transport behavior under different conditions, indicating that the attachment and transport of nanoparticles in soil are influenced by multiple factors.
JOURNAL OF CONTAMINANT HYDROLOGY
(2022)
Article
Engineering, Environmental
Najmeh Jaberi, Stuart Linley, Neil R. Thomson, Kevin McVey, Kanwartej Sra, Frank X. X. Gu
Summary: Engineered nanoparticles coated with a tunable amphiphilic copolymer were successfully delivered and retained in a target non-aqueous-phase liquid (NAPL) zone in laboratory experiments. These nanoparticles exhibited preferential binding to the NAPL and retained higher concentrations in the target zone compared to other areas. However, aggregation of nanoparticles over longer travel distances may pose a challenge for their delivery to a distant target NAPL zone.
JOURNAL OF ENVIRONMENTAL ENGINEERING
(2023)
Article
Water Resources
Waleed Saeed, Orfan Shouakar-Stash, Jim Barker, Neil Thomson, Rick McGregor
Summary: This study found that under high temperature conditions, persulfate (PS) as an oxidant is effective for treating BTEX, with smaller hydrogen and carbon isotope fractionations observed during the chemical oxidation by PS.
Article
Chemistry, Analytical
Christopher K. Bartlett, RobinM. Slawson, Neil R. Thomson
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2019)