Demonstration of pilot‐scale pervaporation systems for volatile organic compound removal from a surfactant enhanced aquifer remediation fluid II. Hollow fiber membrane modules

Abou‐Nemeh, I.; Majumdar, S.; Saraf, Akash; Sirkar, Kamalesh K.; Vane, Leland M.; Alvarez, Franklin R.; Hitchens, Lynnann

doi:10.1002/ep.670200117

Cited by 12 publications

(4 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Because large chemical costs are typically associated with SEAR applications, surfactant recycling and reuse are often considered in system design. In an effort to minimize costs, recent field-scale demonstrations of SEAR have used membrane-based surfactant recycling systems (68,(72)(73)(74). In this investigation, a laboratory-scale evaluation of micellar ultrafiltration was conducted to determine the efficiency of this technology for concentrating Tween 80.…”

Section: Effluent Treatment System Designmentioning

confidence: 99%

Pilot-Scale Demonstration of Surfactant-Enhanced PCE Solubilization at the Bachman Road Site. 1. Site Characterization and Test Design

Abriola

Drummond²,

Hahn

et al. 2005

Environ. Sci. Technol.

View full text Add to dashboard Cite

A pilot-scale demonstration of surfactant-enhanced aquifer remediation (SEAR) was conducted to recover dense nonaqueous phase liquid (DNAPL) tetrachloroethene (PCE) from a sandy glacial outwash aquifer underlying a former dry cleaning facility at the Bachman Road site in Oscoda, MI. Part one of this two-part paper describes site characterization efforts and a comprehensive approach to SEAR test design, effectively integrating laboratory and modeling studies. Aquifer coring and drive point sampling suggested the presence of PCE-DNAPL in a zone beneath an occupied building. A narrow PCE plume emanating from the vicinity of this building discharges into Lake Huron. The shallow unconfined aquifer, characterized by relatively homogeneous fine-medium sand deposits, an underlying clay layer, and the absence of significant PCE transformation products, was judged suitable for the demonstration of SEAR. Tween 80 was selected for application based upon its favorable solubilization performance in batch and two-dimensional sand tank treatability studies, biodegradation potential, and regulatory acceptance. Three-dimensional flow and transport models were employed to develop a robust design for surfactant delivery and recovery. Physical and fiscal constraints led to an unusual hydraulic design, in which surfactant was flushed across the regional groundwater gradient, facilitating the delivery of concentrations of Tween 80 exceeding 1% (wt) throughout the treatment zone. The potential influence of small-scale heterogeneity on PCE-DNAPL distribution and SEAR performance was assessed through numerical simulations incorporating geostatistical permeability fields based upon available core data. For the examined conditions simulated PCE recoveries ranged from 94to 99%. The effluent treatment system design consisted of low-profile air strippers coupled with carbon adsorption to trap off-gas PCE and discharge of treated aqueous effluent to a local wastewater treatment plant. The systematic and comprehensive design methodology described herein may serve as a template for application at other DNAPL sites.

show abstract

Section: Effluent Treatment System Designmentioning

confidence: 99%

Pilot-Scale Demonstration of Surfactant-Enhanced PCE Solubilization at the Bachman Road Site. 1. Site Characterization and Test Design

Abriola

Drummond²,

Hahn

et al. 2005

Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…The phenomenon that the water flux was significantly reduced was observed when TCE was removed from wastewaters containing grease by stripping/permeation in a pilot plant. , It was hypothesized that the grease preferentially adsorbed onto the surface of the hydrophobic porous membrane, partially filled the micropores in the wall of the fibers, and actually behaved as a liquid membrane. Judging from this result, the module was impregnated with the LM by recycling pure dodecane between the lumen side and the module and the reservoir.…”

Section: Resultsmentioning

confidence: 99%

Supported Liquid Membrane-Based Pervaporation for VOC Removal from Water

Qin

Sheth

Sirkar

2002

Ind. Eng. Chem. Res.

Self Cite

View full text Add to dashboard Cite

Supported liquid membrane pervaporation (SLMPV) is a pervaporation process for separating volatile organic compounds (VOCs) from their dilute aqueous solutions through a supported liquid membrane. It integrates simultaneous extraction of the VOCs from the aqueous solution with vacuum stripping of the VOCs from the organic phase in one membrane module. Using a liquid membrane consisting of nonvolatile hydrocarbons immobilized in the micropores of hydrophobic porous polypropylene hollow fibers with or without a plasma-polymerized ultrathin silicone membrane on the outside diameter of the fibers, trichloroethylene (TCE) was separated and concentrated from its aqueous solution at 25 °C and essentially atmospheric pressure. The feed TCE concentration was varied between 50 and 950 ppm; the permeate pressure range was 0.6-70 mmHg. A 78-fiber, 30-33-cm-long module can achieve as much as 98% removal of TCE. The hexadecane SLM is permselective for TCE: the experimental selectivity was 30 000, and the intrinsic selectivity could be as high as 2 × 10 5 , much higher than the values reportedly obtained by any solid membrane. The hexadecane SLM performance indicated long-term stability: about 30% decreases in both pervaporation flux and selectivity were observed in a run lasting 4 months. A mathematical model has been proposed to predict the exit concentration, permeation flux, and selectivity from the properties of the membrane and VOCs and the operating conditions.

show abstract

“…Such a membrane geometry, sometimes called a “membrane contactor”, has been widely explored for gas treating , and liquid–liquid extraction . Such removal has also been explored with nonporous pervaporation membranes, and may find application in shale gas liquids.…”

Section: Introductionmentioning

confidence: 99%

Membrane-Assisted Volatile Organic Compound Removal from Aqueous Acrylic Latex Is Faster Than from Aqueous Solutions

Zeng

McCabe

Frank

et al. 2014

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Solutes such as butyl ether and acetone, which cause unpleasant smells in latex paint, can be stripped from aqueous solutions using a porous membrane. The different mass transfer coefficients in this stripping are dominated by diffusion in the aqueous solution, and behave as expected from boundary layer theory. These solutes can also be stripped without foaming from latex paints whose viscosities are 20−50 times higher than those of aqueous solutions. For the more hydrophobic solutes such as butyl ether, the mass transfer coefficients in latex are smaller than those in water, as expected from theory. For more hydrophilic solutes such as ethanol, the mass transfer coefficients can be as much as 4 times larger. This unexpected result, inconsistent with conventional theory, may result from latex particles serving as a source and can be described by coupled diffusion and desorption.

show abstract

Demonstration of pilot‐scale pervaporation systems for volatile organic compound removal from a surfactant enhanced aquifer remediation fluid II. Hollow fiber membrane modules

Abstract: Pilot-scale demonstration of pervaporation-based removal of volatile organic compounds from a surf a c t a n t enhanced aquifer remediation (SEAR) fluid has been con

Cited by 12 publications

References 9 publications

Pilot-Scale Demonstration of Surfactant-Enhanced PCE Solubilization at the Bachman Road Site. 1. Site Characterization and Test Design

Pilot-Scale Demonstration of Surfactant-Enhanced PCE Solubilization at the Bachman Road Site. 1. Site Characterization and Test Design

Supported Liquid Membrane-Based Pervaporation for VOC Removal from Water

Membrane-Assisted Volatile Organic Compound Removal from Aqueous Acrylic Latex Is Faster Than from Aqueous Solutions

Contact Info

Product

Resources

About