Micellar Enhanced Ultrafiltration for Recovery and Concentration of Trichloroethylene in Groundwater

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Publisher :
ISBN 13 :
Total Pages : 53 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Micellar Enhanced Ultrafiltration for Recovery and Concentration of Trichloroethylene in Groundwater by :

Download or read book Micellar Enhanced Ultrafiltration for Recovery and Concentration of Trichloroethylene in Groundwater written by and published by . This book was released on 1992 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this experimental investigation was to determine the feasibility of micellar-enhanced ultrafiltration (MEUF) and vacuum stripping process in concentrating and separating trichloroethylene (TCE) from contaminated groundwater. The theory is to add surfactant to the contaminated groundwater to form micelles which bind the TCE molecules. The micelles containing the TCE are then removed by ultrafiltration using a spiral-wound membrane. To remove the TCE from the surfactant, this concentrated solution is vacuum stripped and the surfactant is recycled back to each MEUF stage. Properties such as membrane flux, solubilization equilibrium constant, molecular weight, and Krafft temperature were used to determine the appropriate surfactant. Design calculations were performed to estimate the performance of the vacuum stripper and the approximate number of MEUF units needed to remove 99+ percent of the TCE. Based on these feasability studies, preliminary cost estimates of applying this technology were calculated to be approximately the same cost as current established technology. Several recommendations for improving and optimizing the performance of this technology were made.

Micellar Enhanced Ultrafitration for Recovery and Concentration of Trichloroethlyene [sic] in Groundwater

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ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (339 download)

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Book Synopsis Micellar Enhanced Ultrafitration for Recovery and Concentration of Trichloroethlyene [sic] in Groundwater by : B. L. Roberts

Download or read book Micellar Enhanced Ultrafitration for Recovery and Concentration of Trichloroethlyene [sic] in Groundwater written by B. L. Roberts and published by . This book was released on 1992 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Micellar Enhanced Ultrafiltration

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Publisher : CRC Press
ISBN 13 : 1439895686
Total Pages : 227 pages
Book Rating : 4.4/5 (398 download)

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Book Synopsis Micellar Enhanced Ultrafiltration by : Sirshendu De

Download or read book Micellar Enhanced Ultrafiltration written by Sirshendu De and published by CRC Press. This book was released on 2012-06-04 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: A response to increasingly stringent regulation of pollution and toxicity levels in industrial waste discharge, Micellar Enhanced Ultrafiltration: Fundamentals & Applications offers the most complete book available on the benefits and use of micellar-enhanced ultrafiltration (MEUF) to achieve continuous removal of organic and inorganic pollutants. An Unparalleled Book That Addresses Both Academic and Industrial Points of View Several membrane-based techniques, such as microfiltration, ultrafiltration, nanofiltration, and reverse osmosis, are currently used in a wide range of applications throughout the textile, pulp and paper, sugar, chemical, pharmaceutical, biomedical, biotechnological, and food industries. However, although reverse osmosis is an effective means of removing contaminants, this book explains why MEUF is a better substitute, as it less expensive, less energy-intensive, and more efficient and practical for a wider range of applications. Topics covered include: Effects of pollution in water and its consequences Various treatment processes and membrane technologies Fundamentals of ultrafiltration Outline of various membrane modules and modeling approaches Principles of colloid chemistry Theories of micelle formation Stability and dynamics of micelles Phenomena of counterion binding Solubilization of organic pollutants Selection criteria for surfactants Various flux enhancement techniques Recovery of precious metals This book conveys how, with proper selection of surfactant and membrane, MEUF can be used to efficiently remove almost all metal ions (heavy metals, lanthanides, radioactive materials, etc.) with reasonably high efficiency and throughput. It also details the MEUF process for removal of inorganic (cations, anions, and their mixture) and organic pollutants. The authors explain how the economy of the overall process makes recovery and reuse of surfactants essential, and they address various influencing factors on the increase in throughput and the resulting operating problems. Elaborating on technologies involving precipitation and other methods, they also illustrate additional potential applications for MEUF technology.

An Investigation of Micellar Enhanced Ultrafiltration and Air Stripping for Use in Surfactant Enhanced Groundwater Remediation

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Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.:/5 (464 download)

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Book Synopsis An Investigation of Micellar Enhanced Ultrafiltration and Air Stripping for Use in Surfactant Enhanced Groundwater Remediation by : Karen Michelle Lipe

Download or read book An Investigation of Micellar Enhanced Ultrafiltration and Air Stripping for Use in Surfactant Enhanced Groundwater Remediation written by Karen Michelle Lipe and published by . This book was released on 1993 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Recovery of Surfactant from Micellar-enhanced Ultrafiltration Using a Precipitation Process

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (943 download)

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Book Synopsis Recovery of Surfactant from Micellar-enhanced Ultrafiltration Using a Precipitation Process by :

Download or read book Recovery of Surfactant from Micellar-enhanced Ultrafiltration Using a Precipitation Process written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Distribution and Movement of Trichloroethylene in Ground Water in the Tucson Area, Arizona

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Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Distribution and Movement of Trichloroethylene in Ground Water in the Tucson Area, Arizona by : S. A. Leake

Download or read book Distribution and Movement of Trichloroethylene in Ground Water in the Tucson Area, Arizona written by S. A. Leake and published by . This book was released on 1987 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Batch and Continuous Ultrafiltration of Micellar Solutions

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Publisher :
ISBN 13 :
Total Pages : 446 pages
Book Rating : 4.:/5 (1 download)

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Book Synopsis Batch and Continuous Ultrafiltration of Micellar Solutions by : John Hayes Markels

Download or read book Batch and Continuous Ultrafiltration of Micellar Solutions written by John Hayes Markels and published by . This book was released on 1993 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Announcements & Index

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Publisher :
ISBN 13 :
Total Pages : 1496 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Government Reports Announcements & Index by :

Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1994 with total page 1496 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Micellar Enhanced Ultrafiltration to Treat Underground Water Contaminated with Diesel

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Publisher :
ISBN 13 :
Total Pages : 146 pages
Book Rating : 4.:/5 (12 download)

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Book Synopsis Micellar Enhanced Ultrafiltration to Treat Underground Water Contaminated with Diesel by : Amal Al-Sabahy

Download or read book Micellar Enhanced Ultrafiltration to Treat Underground Water Contaminated with Diesel written by Amal Al-Sabahy and published by . This book was released on 2003 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Simultaneous Recovery of Copper and Surfactant by an Electrolytic Process from Synthetic Solution Prepared to Simulate a Concentrate Waste Stream of a Micellar-enhanced Ultrafiltration Process

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (814 download)

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Book Synopsis Simultaneous Recovery of Copper and Surfactant by an Electrolytic Process from Synthetic Solution Prepared to Simulate a Concentrate Waste Stream of a Micellar-enhanced Ultrafiltration Process by : Chi-Wang Li

Download or read book Simultaneous Recovery of Copper and Surfactant by an Electrolytic Process from Synthetic Solution Prepared to Simulate a Concentrate Waste Stream of a Micellar-enhanced Ultrafiltration Process written by Chi-Wang Li and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Use of Rhamnolipid to Remove Heavy Metals from Aqueous Streams Via Micellar Enhanced Ultrafiltration

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Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (11 download)

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Book Synopsis Use of Rhamnolipid to Remove Heavy Metals from Aqueous Streams Via Micellar Enhanced Ultrafiltration by : Mohamed Abdel Monem El Zeftawy

Download or read book Use of Rhamnolipid to Remove Heavy Metals from Aqueous Streams Via Micellar Enhanced Ultrafiltration written by Mohamed Abdel Monem El Zeftawy and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this research, the rhamnolipid biosurfactant was utilized in micellar-enhanced ultrafiltration (MEUF) of heavy metals from contaminated waters. The effects of different major operating conditions on the (MEUF) system performance were investigated for copper, zinc, nickel and cadmium using two membranes. The optimal conditions were successfully applied to treat six contaminated wastewaters from metal refining industries and three contaminated groundwaters using the two membranes (> 99% rejection ratio). To efficiently choose the most influential factors to the MEUF system, optimization by the response surface methodology approach was utilized and data quality was examined. Three studies were performed in order to investigate the mechanism and the interactions between the heavy metal ions and the rhamnolipid micelles in the rhamnolipid-based UF system. The first study successfully investigated the applicability of Gouy-Chapman approach for binding of heavy metal ions to rhamnolipid biosurfactant in the MEUF system and the mechanism via electrostatic attraction was suggested. The second study efficiently evaluated binding behavior of the four heavy metal ions individually and collectively onto the rhamnolipid. The order was Cu 2+> Cd 2+> Zn 2+> Ni 2+ .The third study analyzed the equilibrium data using Langmuir, Freundlich, and linear adsorption models. The Freundlich model fitted the data better and the K F values were from 1.3 to 6.1. In addition, solidification/stabilization (S/S) technology was successfully used to stabilize solid wastes contaminated with heavy metal. Furthermore, preliminary trials were performed to examine the recovery of the rhamnolipid from the retentates for possible reuse. The amounts recovered ranged from 12 ± 1% to 18 ± 1% of the rhamnolipid concentration initially present in the retentate. Similarly, preliminary trials to reuse water from the retentates were investigated. The total portions recovered ranged from about 81.0 ± 0.34% to 82.3 ± 0.46$% of the total feed water. This work may be used as preliminary investigations for further detailed pilot and/or large-scale studies to treat contaminated groundwater and industrial wastewater.

Simultaneous Removal of Benzene and Copper from Water and Wastewater Using Micellar-enhanced Ultrafiltration

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Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (11 download)

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Book Synopsis Simultaneous Removal of Benzene and Copper from Water and Wastewater Using Micellar-enhanced Ultrafiltration by : Mohammed Ridha Zaid Ahmed

Download or read book Simultaneous Removal of Benzene and Copper from Water and Wastewater Using Micellar-enhanced Ultrafiltration written by Mohammed Ridha Zaid Ahmed and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: To remove metal ions and/or organic molecules from aqueous solutions is a difficulty commonly encountered in the treatment of contaminated water. Traditional ultrafiltration is usually used to separate the high molecular weight molecules and is ineffective in removing heavy metal ions or organic molecules with small molecular weights. Micellar-enhanced ultrafiltration (MEUF) is an effective technique to remove contaminants that traditional ultrafiltration cannot remove. Micellar-enhanced ultrafiltration makes use of the micellar properties of surfactant solutions to remove dissolved ions and/or organics from aqueous streams. Chemical surfactants have proven effective. However compared to biosurfactants they are toxic and create a secondary problem since part of the surfactant monomers frequently leak through the pores of membrane filters. This study is an attempt to examine the effect of rhamnolipid biosurfactant, JBR 425, on contaminant removal from aqueous solutions. The required quantity of rhamnolipid to remove the copper ions as a heavy metal pollutant and benzene molecules as an organic pollutant separately has been determined for different concentrations of pollutants. This quantity, the molar ratio (MR), was 6.25 to obtain a 100% rejection for the copper ions and 1.33 to obtain the same rejection of benzene molecules. When copper and benzene were mixed, these molar ratios have been either improved as in benzene molar ratio which was decreased from 1.33 to 0.56 or remained the same as in copper molar ratio but in all cases rhamnolipid JBR 425 proved of excellent efficiency in the removal of contaminants and a rejection of 100% has been obtained for copper and benzene either separately or simultaneously which is the objective of this study.

Government reports annual index

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Publisher :
ISBN 13 :
Total Pages : 1442 pages
Book Rating : 4.3/5 (129 download)

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Book Synopsis Government reports annual index by :

Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1442 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Toxicological Profile for Trichloroethylene

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Publisher :
ISBN 13 :
Total Pages : 340 pages
Book Rating : 4.:/5 (321 download)

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Book Synopsis Toxicological Profile for Trichloroethylene by :

Download or read book Toxicological Profile for Trichloroethylene written by and published by . This book was released on 1997 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Chlorinated Solvent Source Zone Remediation

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Publisher : Springer Science & Business
ISBN 13 : 1461469228
Total Pages : 759 pages
Book Rating : 4.4/5 (614 download)

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Book Synopsis Chlorinated Solvent Source Zone Remediation by : Bernard H. Kueper

Download or read book Chlorinated Solvent Source Zone Remediation written by Bernard H. Kueper and published by Springer Science & Business. This book was released on 2014-04-22 with total page 759 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this book is to help engineers and scientists better understand dense nonaqueous phase liquid (DNAPL) contamination of groundwater and the methods and technology used for characterization and remediation. Remediation of DNAPL source zones is very difficult and controversial and must be based on state-of-the-art knowledge of the behavior (transport and fate) of nonaqueous phase liquids in the subsurface and site specific geology, chemistry and hydrology. This volume is focused on the characterization and remediation of nonaqueous phase chlorinated solvents and it is hoped that mid-level engineers and scientists will find this book helpful in understanding the current state-of-practice of DNAPL source zone management and remediation.

Nanomaterials for Water Treatment and Remediation

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Publisher : CRC Press
ISBN 13 : 1000485323
Total Pages : 488 pages
Book Rating : 4.0/5 (4 download)

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Book Synopsis Nanomaterials for Water Treatment and Remediation by : Srabanti Ghosh

Download or read book Nanomaterials for Water Treatment and Remediation written by Srabanti Ghosh and published by CRC Press. This book was released on 2021-12-28 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offering a comprehensive view of water-treatment technologies, Nanomaterials for Water Treatment and Remediation explores recent developments in the use of advanced nanomaterials (ANMs) for water treatment and remediation. In-depth reaction mechanisms in water-treatment technologies, including adsorption, catalysis, and membrane filtration for water purification using ANMs, are discussed in detail. The book includes an investigation of the fabrication processes of nanostructured materials and the fundamental aspects of surfaces at the nanoscale. The book also covers the removal of water-borne pathogens and microbes through a photochemical approach. FEATURES Explains various chemical treatments for the removal and separation of hazardous dyes, organic pollutants, pharmaceuticals, and heavy metals from aqueous solutions, including adsorption, advanced oxidation process, and photocatalysis Discusses the rational design of nanoporous materials with a tunable pore structure and fabrication of nanomaterials by surface chemistry engineering Covers the role of nanomaterials-assisted oxidation and reduction processes, design of nano-assisted membrane-based separation, and multifunctional nanomaterials and nanodevices for water treatment Provides an understanding of the structure–activity relationship and stability of ANMs under critical experimental conditions Identifies potential challenges in the application of multifunctional ANMs for future research Nanomaterials for Water Treatment and Remediation is aimed at researchers and industry professionals in chemical, materials, and environmental engineering as well as related fields interested in the application of advanced materials to water treatment and remediation.

Surfactant Enhancements

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Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.3/5 (121 download)

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Book Synopsis Surfactant Enhancements by :

Download or read book Surfactant Enhancements written by and published by . This book was released on 1995 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: