Treatment of Petroleum Contaminated Soil Using Supercritical Fluid Extraction (SFE) Technology
Treatment of Petroleum Contaminated Soil Using Supercritical Fluid Extraction (SFE) Technology

Author: Mahmoud Meskar

Publisher:

Published: 2018

Total Pages:

ISBN-13:

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In Canada, about 60% of contaminated sites involve petroleum hydrocarbon (PHC) contamination and most of these sites have been abandoned due to contamination. Among current technologies used for soil remediation, supercritical fluid extraction (SFE) is a relatively recent and potentially viable method. The main aim of this research was to investigate the application of SFE for removal of PHCs from contaminated soils. In the first phase, the effects of SFE operational parameters including fluid pressure, fluid temperature, time duration and mode of extraction on the removal efficiency of PHCs from a spiked sandy soil (with diesel fuel with a ratio of 5 wt%) were investigated. SFE experiments were performed at different pressures (15, 33 and 50 MPa) and temperatures (30, 75 and 120 °C). The combination of 10 min static mode followed by 10 min dynamic mode, repeated for 3 cycles (60 min in total) led to the highest PHC removal percentage. According to response surface methodology (RSM), the optimum pressure and temperature were found to be 50 MPa and 69.3 °C, respectively. According to experimental results, the optimum combination of pressure and temperature determined to be 33 MPa and 75 °C; which resulted in the extraction percentages of 99.2%, 91.7% and 86.1% for PHC F2, F3 and F4 fractions, respectively. In the second phase, the influence of several parameters including soil water content, soil pH and addition of modifier on PHCs removals from a field-contaminated sandy soil using SFE were experimentally investigated. SFE experiments were performed at 33 MPa pressure and temperatures of 45 and 75 °C. Three water content levels of 8%, 14% and 20% at two levels of pH 6.5 and 7.5 were investigated. The extraction of total petroleum hydrocarbon fractions (TPHF), the sum of F2, F3, and F4 fractions, decreased due to the increase in the water content from 8% to 20% at both pH 6.5 and 7.5. The difference of extractions of all PHC fractions at pH values of 6.5 and 7.5 were not statistically significant (at p

Remediation of Petroleum-contaminated Soils
Remediation of Petroleum-contaminated Soils

Author: David J. Friend

Publisher: Transportation Research Board

Published: 1996

Total Pages: 100

ISBN-13: 9780309058711

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This synthesis will be of interest to state transportation personnel involved with project planning and location (administrative and regulatory personnel), design staff (general civil, geotechnical, and environmental engineers), and project managers (construction and maintenance engineers and staff). It will also be of interest to federal and state environmental agencies and to environmental consultants and contractors as well as to trainers in the field of petroleum-contaminated soil remediation. This synthesis describes the remedial technologies that may be available to transportation agencies faced with the regulatory responsibility to clean or remediate petroleum-contaminated soils in the vadose zone (unsaturated soils above the groundwater table) at a particular site as well as the state of the practice within the agencies. This report of the Transportation Research Board describes the applicability and cost-effectiveness of alternate technologies to remediate petroleum-contaminated soil. Practices currently being used by state transportation agencies to remediate petroleum-contaminated soils, both on site and off site are also described. This summary of transportation agency practice complements the limited telephone survey of soil remediation techniques that was performed in preparing NCHRP Report 351, Hazardous Wastes in Highway Rights-of-Way.

Remediation of Petroleum Contaminated Soils
Remediation of Petroleum Contaminated Soils

Author: Eve Riser-Roberts

Publisher: CRC Press

Published: 2020-11-25

Total Pages: 580

ISBN-13: 9781420050578

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This book combines the results of current research with essential background material to provide complete, in-depth coverage of every aspect of in situ and ex situ bioremediation, as well as an extensive overview of the physical and chemical processes currently available for treating petroleum-contaminated soils. Critical information has been collected and assembled under one cover to provide a convenient reference for anyone who must contend with this worldwide problem. Remediation of Petroleum Contaminated Soils: Biological, Physical, and Chemical Processes describes how to optimize the biodegradation of petroleum hydrocarbons in soil-water systems. It reports on the susceptibility of various petroleum components to biodegradation by microorganisms, and considers all groups of microorganisms for their potential contributions. The book also deals with problem areas such as the transport of organisms, oxygen, or nutrients throughout the subsurface, as well as biodegradation of polynuclear aromatic hydrocarbons (PAHs) and nonaqueous phase liquids (NAPLs). In addition, the book presents a variety of methods for monitoring bioremediation. This reference discusses current soil remediation processes and includes many innovative approaches. It also investigates means of controlling volatile organic compounds (VOCs) and leachate, and addresses methods for collecting and treating these secondary waste streams. The expansive coverage of this book will furnish readers with a wide range of options for developing treatment strategies and for customizing procedures for specific requirements.

Green Sustainable Process for Chemical and Environmental Engineering and Science
Green Sustainable Process for Chemical and Environmental Engineering and Science

Author: Rajender Boddula

Publisher: Elsevier

Published: 2020-11-18

Total Pages: 314

ISBN-13: 0128218983

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Green Solvents for Environmental Remediation provides an in-depth overview of environmental remediation by using eutectic solvents, ionic liquids, biosolvents, and switchable solvents, of ionic-liquids, biosolvents, Gas-expanded solvents Liquid polymers, supercritical fluids, Polymer-based green solvents, Switchable solvents, etc. This book offers all-types of green solvents for the removal of contaminations from the soil, air, and water. It summarizes in-depth literature on the application of various green solvents in the areas such as municipal water, extraction, bioremediation, phytoremediation, soil and sediment remediation, toxic gases removal, and various industrial effluents. A brief introduction, limitations, and advantages to the practical use of green solvents are also discussed. This book is authored by experts in a broad range of fields. It is an invaluable reference guide for the sustainable and environmentally friendly development of synthetic methodologies for environmental, analytical, engineering, and industrial technology. - Provides an up-to-date research record on green solvents for environmental protection - Includes latest advances in environmental remediation - Outlines eco-friendly green solvents for toxic contaminants degradation and purification - Covers all-types of green solvent-driven environmental remediation technologies - Key references to obtain great results in environmental remediation using green solvents

Assessments And Remediation Of Oil Contaminated Soils
Assessments And Remediation Of Oil Contaminated Soils

Author: Paul Kostecki

Publisher: Taylor & Francis

Published: 1999

Total Pages: 414

ISBN-13: 9788122412048

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Paul T. Kostecki, Associate Director, Northeast Regional Environment Public Health Center, School Of Public Health, University Of Massachusetts At Amherst, Received His Ph.D. From The School Of Natural Resources At The University Of Michigan In 1 980. He Has Been Involved With Human And Ecological Risk Assessment And Risk Management Research For The Last 12 Years. Dr. Kostecki Has Co-Authored And Co-Edited Over 50 Articles And 16 Books On Environmental Assessment And Cleanup Including: Remedial Technologies For Leaking Underground Storage Tanks, Soils Contaminated By Petroleum Products; Petroleum Contaminated Soils, Vols. 1 To 3: Hydrocarbon Contaminated Soils And Groundwater, Vols. 1 To 4; Hydrocarbon Contaminated Soils, Vols. 1 To 5; Principles And Practices For Diesel Contaminated Soils, Vols. 1 To 5; Sesoil In Environmental Fate And Risk Modeling, Contaminated Soils, Vol. 1 And Risk Assessment And Environmental Fate Methodologies.Dr. Kostecki Also Serves As Associate Editor For The Journal Of Soil Contamination, Chairman Of The Scientific Advisory Board For Soil And Groundwater Cleanup Magazine As Well As An Editorial Board Member For The Journal Of Human And Ecological Risk Assessment.In A Addition. Dr. Kostecki Serves As Executive Director For The Association For The Environmental Health Of Soils (Aehs) And Was The Scientific Advisor For The Workshop On Assessment And Remediation Of Oil Contaminated Soils Held In Kuwait 18-22 March 1995.Dr. Manaf Behbehani Obtained His B.S. In Biology From The University Of Akron, Usa (1969) And M.S. In Zoology From The Same University (1972). He Continued His Graduate Studies At The University Of New Hampshire Receiving Ph.D. In Marine Ecology And Invertebrates In 1978. Since Then, He Has Been Teaching Ecology And Marine Biology Courses At The Faculty Of Science, Kuwait University. From 1 982-1987, He Held The Post Of Marine Scientist At The Regional Organisation For The Protection Of The Marine Environment (Ropme) In Kuwait. Dr. Behbehani Has Worked On A Number Of Pioneering Research Projects, Namely To Study The Zooplankton Of Kuwaiti Waters And The Western Section Of The Arabian Gulf, And To Study The Distribution, Abundance And Taxonomy Of Marine Invertebrates Living In The Intertidal Zones Of Kuwait. He Has Published Several Scientific Articles And Has Served As External Examiner For Several Masters Thesis. From 1991-1995, Dr. Behbehani Was Vice-Dean For Planning And Laboratories At The Faculty Of Science, Kuwait University And Is Presently Chairman Of The National Biodiversity Committee, State Of Kuwait. He Was The Chairman Of The Scientific Committee For The Workshop On Assessment And Remediation Of Oil Contaminated Soils, The Proceedings Of Which Are Published In This Book.

Petroleum Contaminated Soils
Petroleum Contaminated Soils

Author: Paul T. Kostecki

Publisher: CRC Press

Published: 1989-09-30

Total Pages: 544

ISBN-13: 9780873712262

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These three volumes provide valuable information to help bring rational and scientifically feasible solutions to petroleum contaminated soils. State-of-the-art information on both technical and regulatory issues is covered, including environmental fate, health effects, risk assessment and remedial alternatives. They show why petroleum contaminated soils are a problem - and propose solutions for that problem. These books are an excellent reference for regulatory personnel and environmental consultants at all levels.

Petroleum Contaminated Soils, Volume I
Petroleum Contaminated Soils, Volume I

Author: Paul T. Kostecki

Publisher: CRC Press

Published: 2021-05-31

Total Pages: 372

ISBN-13: 1000448096

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These three volumes provide valuable information to help bring rational and scientifically feasible solutions to petroleum contaminated soils. State-of-the-art information on both technical and regulatory issues is covered, including environmental fate, health effects, risk assessment and remedial alternatives. They show why petroleum contaminated soils are a problem - and propose solutions for that problem. These books are an excellent reference for regulatory personnel and environmental consultants at all levels.