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Wednesday, July 15, 2020 | History

2 edition of A cross-flow pervaporation system for removal of VOCs from contaminated wastewater found in the catalog.

A cross-flow pervaporation system for removal of VOCs from contaminated wastewater

A cross-flow pervaporation system for removal of VOCs from contaminated wastewater

wastewater technology centre

  • 172 Want to read
  • 23 Currently reading

Published by U.S. Environmental Protection Agency in [Washington, D.C.] .
Written in English

    Subjects:
  • Water -- Pollution,
  • Sewage -- Testing

  • Edition Notes

    Other titlesCross flow pervaporation system for removal of VOCs from contaiminated wastewater
    SeriesEmerging technology bulletin
    ContributionsUnited States. Environmental Protection Agency
    The Physical Object
    FormatMicroform
    Pagination1 v
    ID Numbers
    Open LibraryOL17995058M

    This book presents the studies of some of the most prestigious international scientists and gathers them in three different sections: Wastewater Management and Reuse, Wastewater Treatment Options, and Risk Assessment. The result is an insightful analysis of waste . You can write a book review and share your experiences. Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them.

    There are various reports related to the application of ceramic membranes, i.e., TiO 2, Al 2 O 3, ZrO 2, zeolite and SiO 2 membranes in VOCs removal from water [15,16,17,18,23,24].As a kind of common material, silica membrane has been used in gas separation [25,26], membrane reactor [], and desalination [] due to its intrinsic merits, for instance, ease of preparation, tunable pore size. Separation (Cross-Flow Pervaporation System) Ground water: Organics, primarily TCE - 98% reduction: TCE influent concentrations - ppm, flow rate - 10 gpm: The ZENON Environmental Inc. cross-flow pervaporation technology is a membrane- based process that removes VOC from aqueous matrices.

    Food and Agricultural Wastewater Utilization and Treatment VOC Removal with Pervaporation. As described in Chapter 3, pervaporation is an energy-efficient technology that has been used commercially for alcohol dehydration, VOC removal from contaminated water, and hydrocarbon separations. The driving force of pervaporation processes is the. Treatment of water contaminated with volatile organic compounds (VOCs) is a major problem for the United States chemical industry. Currently, VOCs are removed from moderately contaminated wastewater streams by processes such as steam stripping and from dilute wastewaters by air stripping combined with a carbon adsorption off-gas treatment system.


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A cross-flow pervaporation system for removal of VOCs from contaminated wastewater Download PDF EPUB FB2

The U.S. Federal Register of Apcontains a list of priority pollutants found at Superfund sites. bout half of these are volatile organic compounds (VOCs), which are known to be toxic and/or carcinogenic in nature.

ervaporation is a membrane technology utilizing a dense non-porous polymeric film to separate the contaminated water from a vacuum source. embrane is used that preferentially partitions the VOC.

Pervaporation is a process for removing volatile organic compounds (VOC) from contaminated water. The performance of the cross-flow pervaporation system increases with temperature, with an equipment limitation of 35 degrees Celsius. Permeable membranes that preferentially adsorb VOCs are used to partition VOCs from the contaminated water.

The primary objectives of this project have been to develop an improved membrane and module design to make pervaporation a more cost-effective method of removing volatile organic compounds from contaminated water, and to compare the improved pervaporation module and membrane design to other remediation technologies as well as other pcrvaporation module and membrane designs for the removal of organics from contaminated water.

Cross flow pervaporation system for removal of VOCs from contaiminated wastewater: Responsibility: Wastewater Technology Centre. ZENON cross-flow pervaporation system has been already applied on a large scale for various industrial applications including the removal of VOCs from wastewater and groundwater.

The pervaporation process followed the same discussed technique for separating contaminates in which. BibTeX @MISC{Centre_emergingtechnology, author = {Wastewater Technology Centre and John Martin}, title = {EMERGING TECHNOLOGY REPORT CROSS-FLOW PERVAPORATION SYSTEM FOR REMOVAL OF VOCs FROM CONTAMINATED WASTEWATER}, year = {}}.

EMERGING TECHNOLOGY REPORT CROSS-FLOW PERVAPORATION SYSTEM FOR REMOVAL OF VOCs FROM CONTAMINATED WASTEWATER. By Wastewater Technology Centre and John Martin. Abstract. Zenon Environmental Inc. It has been subjected to the Agency’s peer and administrative reviews and it has been approved for publication as an EPA : Wastewater Technology Centre and John Martin.

More stringent requirements for the removal of VOCs from wastewater in recent years have increased the need to develop new technologies for removal of VOCs from dilute streams. Membrane pervaporation is an attractive and potentially cost-competitive alternative to traditional methods for removing low concentration of VOCs from wastewater.

The ZENON Environmental Inc. (ZENON), cross-flow pervaporation technology is a membrane-based process that removes volatile organic compounds (VOC) from aqueous matrices. The technology uses an organophilic membrane made of nonporous silicone rubber, which is permeable to organic compounds, and highly resistant to degradation.

The removal of volatile organic compounds (VOCs) from wastewater or contaminated groundwater is a major problem. It usually involves treating dilute multicomponent solutions. Air stripping is conventionally used for this purpose. Then the contaminated air is usually treated using adsorption on activated carbon or catalytic by: The ZENON cross-flow pervaporation technology removes VOCs from aqueous matrices, such as groundwater, wastewaters, and leachate.

The technology can treat a variety of concentrations; however, it is best suited for reducing high concentrations of VOCs to levels that can be reduced further and more economically by.

The removal of volatile organic compounds (VOCs) from contaminated groundwater usually involves treating dilute multicomponent solutions. Air stripping removes the. ZENON cross-flow pervaporation system has been already applied on a large scale for various industrial applications including the r emoval o f VOCs from wastewater and.

Get this from a library. Cross-flow pervaporation for removal of VOCs from contaminated wastewater. [United States.

Environmental Protection Agency.;]. Frequently the VOC in the condensed permeate is enriched to fold over the feed. Target applications include removal of VOCs from industrial wastewater streams and the recovery of volatile flavour and aroma components in the food processing industry.

The current commercial pervaporation processes involve the separation of organics and water. 'I Wastewater Technology Centre Technology Description: Pervaporation is a process for remov- ing volatile organic compounds (VOC) from contaminated water.

The performance of the cross-flow pervaporation system in- creases with temperature, with an equipment limitation of 35 degrees Celsius.

The other main advantages of using pervaporation for VOC-water separation is that it is technically feasible, and economically viable process. The pervaporation procedure framework for isolating VOCs from wastewater is shown in Figure 1.

Fig Pervaporation process for VOC removal from waterFile Size: KB. Volatile organic compounds (VOCS) can be removed from surfactant solutions using pervaporation with hydrophobic pervaporation membranes.

This process can be used to remove volatile non-laqueous phase liquids from surfactant-based soil washing and soil flushing solutions for recovery of the volatile compounds and reuse of the by: 4. The VOCs diffuse from the membrane-water interface through the membrane by vacuum.

Upstream of the system's vacuum vent, a condenser traps and contains the permeating vapors, condensing the vapor to liquid while. Figure 14 Cross-flow pervaporation system for groundwater decontamination. (Courtesy of USEPA.) alleviating fugitive emissions. Provides an authoritative guide for chemical engineers and academic researchers interested in membrane technologies for desalination, process water/steam treatment, water purification, VOCs removal and other aspects of pollution control, industrial process chemistry, renewable energy production or separation and concentration in the food.

A novel membrane bioreactor has been used for the treatment of an industrially produced wastewater arising in the manufacture of 3‐chloronitrobenzene. This wastewater is not amenable to direct biological treatment without some form pretreatment or dilution, due to the inorganic composition (pH wastewater.

El-Behlil MA, Adma SA. Volatile organic chemicals removal from contaminated water using low profile sieve tray air stripping towers.

Int Water Technol J ; 2: – Google Scholar. El-Behlil MA, El-Gezawi SM, Adma SA. Simplified packed tower calculation for the removal of VOCs from contaminated by: 4.The removal of organic compounds from process wastewater represents another challenge for the petroleum refining industry.

Examples include the removal of hydrophobic solvents, such as 1, 1, 2-trichloroethylene, chloroform, and ethylene dichloride; and the removal of hydrophilic solvents, such as methanol, ethanol, isopropanol, acetic acid.