Author: Won Jang
Publisher:
ISBN:
Category :
Languages : en
Pages : 262
Book Description
Cascade Air-stripping System for Removal of Low and Semi-volatile Organic Contaminants
Author: Won Jang
Publisher:
ISBN:
Category :
Languages : en
Pages : 262
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 262
Book Description
Cascade Air-stripping for Removal of Semi-volatile Organic Contaminants Feasibility Study
Author: W. Jang
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 51
Book Description
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 51
Book Description
Air Stripping for Volatile Organic Contaminant Removal
Author:
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 178
Book Description
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 178
Book Description
Combined Air Stripper
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 37
Book Description
Air stripping is an economical and efficient method of removing dissolved volatile organic compounds (VOCs) from contaminated groundwater. Air strippers, however, produce a vent air stream, which must meet the local air quality limits. If the VOC content exceeds the limits, direct discharge is not possible; therefore, a carbon adsorption VOC capture system is used to treat the vent air. This treatment step adds a cost of at least $50/lb of VOC captured. In this program, a combined air stripper/membrane vapor separation system was constructed and demonstrated in the laboratory. The membrane system captures VOCs from the stripper vent stream at a projected cost of $15/lb VOC for a water VOC content of 5 ppmw, and $75/lb VOC for a water VOC content of 1 ppmw. The VOCs are recovered as a small, concentrated liquid fraction for disposal or solvent recycling. The concept has been demonstrated in experiments with a system capable of handling up to 150,000 gpd of water. The existing demonstration system is available for field tests at a DOE facility or remediation site. Replacement of the current short air stripping tower (effective height 3 m) with a taller tower is recommended to improve VOC removal.
Publisher:
ISBN:
Category :
Languages : en
Pages : 37
Book Description
Air stripping is an economical and efficient method of removing dissolved volatile organic compounds (VOCs) from contaminated groundwater. Air strippers, however, produce a vent air stream, which must meet the local air quality limits. If the VOC content exceeds the limits, direct discharge is not possible; therefore, a carbon adsorption VOC capture system is used to treat the vent air. This treatment step adds a cost of at least $50/lb of VOC captured. In this program, a combined air stripper/membrane vapor separation system was constructed and demonstrated in the laboratory. The membrane system captures VOCs from the stripper vent stream at a projected cost of $15/lb VOC for a water VOC content of 5 ppmw, and $75/lb VOC for a water VOC content of 1 ppmw. The VOCs are recovered as a small, concentrated liquid fraction for disposal or solvent recycling. The concept has been demonstrated in experiments with a system capable of handling up to 150,000 gpd of water. The existing demonstration system is available for field tests at a DOE facility or remediation site. Replacement of the current short air stripping tower (effective height 3 m) with a taller tower is recommended to improve VOC removal.
An Introduction to Air Stripping to Remove VOCs from Water
Author: J. Paul Guyer, P.E., R.A.
Publisher: Guyer Partners
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 24
Book Description
Introductory technical guidance for civil, environmental and mechanical engineers and construction managers interested in removal of volatile organic compounds from water streams using air stripping technology. Here is what is discussed: 1. INTRODUCTION 2. DESCRIPTION OF AIR STRIPPERS 3. DESIGN METHODS 4. TREATABILITY 5. COMPARISON OF AIR STRIPPERS 6. AIR POLLUTION CONTROL REQUIREMENTS 7. FLOODING 8. PROCESS CONTROL 9. ECONOMIC EVALUATION 10. REFERENCES.
Publisher: Guyer Partners
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 24
Book Description
Introductory technical guidance for civil, environmental and mechanical engineers and construction managers interested in removal of volatile organic compounds from water streams using air stripping technology. Here is what is discussed: 1. INTRODUCTION 2. DESCRIPTION OF AIR STRIPPERS 3. DESIGN METHODS 4. TREATABILITY 5. COMPARISON OF AIR STRIPPERS 6. AIR POLLUTION CONTROL REQUIREMENTS 7. FLOODING 8. PROCESS CONTROL 9. ECONOMIC EVALUATION 10. REFERENCES.
An Introduction to Air Stripping to Remove VOCs from Water
Author: J. Paul Guyer
Publisher:
ISBN: 9781691872329
Category :
Languages : en
Pages : 30
Book Description
Introductory technical guidance for civil, environmental and mechanical engineers and construction managers interested in removal of volatile organic compounds from water streams using air stripping technology. Here is what is discussed:1. INTRODUCTION2. DESCRIPTION OF AIR STRIPPERS3. DESIGN METHODS4. TREATABILITY5. COMPARISON OF AIR STRIPPERS6. AIR POLLUTION CONTROL REQUIREMENTS7. FLOODING8. PROCESS CONTROL9. ECONOMIC EVALUATION10. REFERENCES.
Publisher:
ISBN: 9781691872329
Category :
Languages : en
Pages : 30
Book Description
Introductory technical guidance for civil, environmental and mechanical engineers and construction managers interested in removal of volatile organic compounds from water streams using air stripping technology. Here is what is discussed:1. INTRODUCTION2. DESCRIPTION OF AIR STRIPPERS3. DESIGN METHODS4. TREATABILITY5. COMPARISON OF AIR STRIPPERS6. AIR POLLUTION CONTROL REQUIREMENTS7. FLOODING8. PROCESS CONTROL9. ECONOMIC EVALUATION10. REFERENCES.
Selected Water Resources Abstracts
Author:
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 710
Book Description
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 710
Book Description
An Evaluation of Rotary Air Stripping for Removal of Volatile Organics from Ground Water
Author: Chris Dietrich
Publisher:
ISBN:
Category : Sewage
Languages : en
Pages : 80
Book Description
Rotary air stripping was researched and developed to remove volatile organic contaminants from groundwater. The Traverse Group, Inc, Ann Arbor MI, was contracted under a joint funding venture by the US Coast Guard and the US Air Force to evaluate feasibility of using rotary air stripping to treat water contaminated with benzene, toluene, xylenes, trichloroethylene, 1,2,dichloroethane, and tetrachloroethylene. A site of groundwater contamination at the US Coast Guard Station, Traverse City MI provided a readily available source of contaminated water for this work. A prototype rotary air stripper (RAS), manufactured specifically for this project, was installed onsite in Traverse City MI. The RAS (consisting of a packed bed 1.7 feet in diameter by 1.2 feet thick) was evaluated over a range of contaminant concentrations (63 to 19,000 ppb), liquid flow rates (50 to 120 gpm), air to water ratios (10:1 to 170:1 vol/vol), and rotor speeds (365 to 875 rpms). The effect of each parameter on removal efficiency was analyzed. Generally, removal efficiencies in excess of 99 percent were achieved for all contaminants (except 1,2-DCE) at an air-to-water ratio and rotor speed of 30:1 vol/vol and 435 rpms, respectively. Keywords: Water treatment, Air stripping, Rotary Air Stripper, Hazardous materials, Rotating packed beds, Acceleration, Mass transfer coefficients, Benzene, Toluene, Xylenes, Fuel contamination, Chlorinated organics.
Publisher:
ISBN:
Category : Sewage
Languages : en
Pages : 80
Book Description
Rotary air stripping was researched and developed to remove volatile organic contaminants from groundwater. The Traverse Group, Inc, Ann Arbor MI, was contracted under a joint funding venture by the US Coast Guard and the US Air Force to evaluate feasibility of using rotary air stripping to treat water contaminated with benzene, toluene, xylenes, trichloroethylene, 1,2,dichloroethane, and tetrachloroethylene. A site of groundwater contamination at the US Coast Guard Station, Traverse City MI provided a readily available source of contaminated water for this work. A prototype rotary air stripper (RAS), manufactured specifically for this project, was installed onsite in Traverse City MI. The RAS (consisting of a packed bed 1.7 feet in diameter by 1.2 feet thick) was evaluated over a range of contaminant concentrations (63 to 19,000 ppb), liquid flow rates (50 to 120 gpm), air to water ratios (10:1 to 170:1 vol/vol), and rotor speeds (365 to 875 rpms). The effect of each parameter on removal efficiency was analyzed. Generally, removal efficiencies in excess of 99 percent were achieved for all contaminants (except 1,2-DCE) at an air-to-water ratio and rotor speed of 30:1 vol/vol and 435 rpms, respectively. Keywords: Water treatment, Air stripping, Rotary Air Stripper, Hazardous materials, Rotating packed beds, Acceleration, Mass transfer coefficients, Benzene, Toluene, Xylenes, Fuel contamination, Chlorinated organics.
Low Volatile Organics in Groundwater-techno-economic Evaluation of an Innovative Treatment Process
Author: N. Nirmalakhandan
Publisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 146
Book Description
Publisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 146
Book Description
New Mexico Journal of Science
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 388
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 388
Book Description