The Experts below are selected from a list of 270 Experts worldwide ranked by ideXlab platform
Chuanfang Yang - One of the best experts on this subject based on the ideXlab platform.
-
Designing high-caliber Nonwoven Filter mats for coalescence filtration of oil/water emulsions
Separation and Purification Technology, 2015Co-Authors: Dan Hu, Lei Li, Xiaoyu Li, Chuanfang YangAbstract:Oily wastewater is a major problem in industries that can cause severe environmental pollution without proper treatment. In this paper, an easily fabricated, robust and durable Nonwoven fibrous Filter mat was prepared for coalescence filtration of four kinds of oil-in-water emulsions, namely hexadecane/water, octane/water, soybean oil/water and engine oil/water. An aromatic thermoplastic polyurethane resin (TPU) was selected to bind the fibers together for structure integrity of the mat. Special roughening treatment to the mat was conducted to deliver the required wettability for effective coalescence separation of these emulsions. The Filter mat thus prepared reached a tensile strength of 2.99 MPa, 20 times stronger than that of the pristine mat. The mat surface was made both hydrophilic and superoleophilic, allowing it to have separation efficiency as high as 99.61% in a single pass flow. Moreover, even pre-saturated with oil, the mat remained effective in separation and permitted high flow, proving its high caliber for potential industrial applications. (C) 2015 Elsevier B.V. All rights reserved.
-
designing high caliber Nonwoven Filter mats for coalescence filtration of oil water emulsions
Separation and Purification Technology, 2015Co-Authors: Dan Hu, Lei Li, Xiaoyu Li, Chuanfang YangAbstract:Oily wastewater is a major problem in industries that can cause severe environmental pollution without proper treatment. In this paper, an easily fabricated, robust and durable Nonwoven fibrous Filter mat was prepared for coalescence filtration of four kinds of oil-in-water emulsions, namely hexadecane/water, octane/water, soybean oil/water and engine oil/water. An aromatic thermoplastic polyurethane resin (TPU) was selected to bind the fibers together for structure integrity of the mat. Special roughening treatment to the mat was conducted to deliver the required wettability for effective coalescence separation of these emulsions. The Filter mat thus prepared reached a tensile strength of 2.99 MPa, 20 times stronger than that of the pristine mat. The mat surface was made both hydrophilic and superoleophilic, allowing it to have separation efficiency as high as 99.61% in a single pass flow. Moreover, even pre-saturated with oil, the mat remained effective in separation and permitted high flow, proving its high caliber for potential industrial applications. (C) 2015 Elsevier B.V. All rights reserved.
-
In situ growing directional spindle TiO2 nanocrystals on cellulose fibers for enhanced Pb2+ adsorption from water
Journal of Hazardous Materials, 2015Co-Authors: Yanxiang Li, Lixia Cao, Lei Li, Chuanfang YangAbstract:TiO2/cellulose nanocomposite was synthesized by in situ generation of titanium dioxide (TiO2) nanocrystals on cellulose fibers (CF) via facile hydrolysis of TiOSO4. Cellulose was intended as a scaffold to immobilize TiO2 nanoparticles (NPs), but turned out surprisingly to be also a chemical template that directed the crystal growth. As a result, spindle rutile TiO2 crystals were nicely formed on the surface of cellulose. These crystals were further controlled to disperse uniformly without agglomeration for better use of their surface area to adsorb heavy metals. The TiO2/CF composite showed enhanced adsorption capacity, good regenerability and selectivity for lead (Pb2+) removal. In addition, the composite fibers were readily fabricated into a Nonwoven Filter bed through which dynamic filtration experiment was conducted. A 12-fold increase in Filtered bed volume was achieved for TiO2/CF bed compared with pure CF bed before breakthrough took place. This work provides a green pathway for fabricating low cost, high efficiency and engineering application possible nanosorbents for water decontamination.
Irwin M. Hutten - One of the best experts on this subject based on the ideXlab platform.
-
Processes for Nonwoven Filter Media
Handbook of Nonwoven Filter Media, 2020Co-Authors: Irwin M. HuttenAbstract:The various processes for producing Nonwoven Filter media are reviewed. Included are raw material preparation, web forming, and conversion and finishing operations. Processes described are for air laid, dry laid, meltspun, wet laid, nanofiber, composite structures and membranes (both organic and inorganic). Conversion operations detailed include bonding and pleating.
-
Handbook of Nonwoven Filter Media - Chapter 1 – Introduction to Nonwoven Filter Media
Handbook of Nonwoven Filter Media, 2020Co-Authors: Irwin M. HuttenAbstract:Chapter 1 introduces the reader to Nonwoven Filter media. Applications are mentioned and market statistics are provided. Filtration, Nonwovens, and Nonwoven Filter media are all defined. Various separation phenomena are identified and briefly described. Nonwoven Filter media are classified by process and the various processes described.
-
Standards for Nonwoven Filter Media
Handbook of Nonwoven Filter Media, 2020Co-Authors: Irwin M. HuttenAbstract:Standards and trade organizations that have relate to Nonwoven Filter media are listed. Standards that may relate to Nonwovens, Filters and media are tabulated,. Includes are tabulation of Harmonized Test Methods prepared in coordination by INDA and EDANA. ISO mangement standards are reviewed. Incluided are ISO 9000, ISO 9001:2008, TS16949, ISO 14000, and ISO 18000.
-
Federal Law and Regulatory Activity That May Relate to Nonwoven Filter Media
Handbook of Nonwoven Filter Media, 2020Co-Authors: Irwin M. HuttenAbstract:Pertinent laws and regulations that may relate to Nonwoven Filter media are reviewed. Included are the Clean AIr Act (CAA), Food and Drug Modernization Act (FDAMA), the Clean Water Act (CWA), the Occupational Safety and Health Act (OSHA), Toxic Substance Control Act (TSCA), Resource Conservation and Recovery Act (RCRA), and HAZMAT. The concept of “sustainability” is presented. The trend toward global standards is illustrated by a discussion of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS). Points where these laws and standards may affect Nonwoven Filter media are identified. This includes discussions on VOC emissions, formaldehyde release and contact with fatty and aqueous foods and beverages.
-
Raw Materials for Nonwoven Filter Media
Handbook of Nonwoven Filter Media, 2020Co-Authors: Irwin M. HuttenAbstract:Raw materials for Nonwoven Filter media are divided into four categories: polymers, fibers, resins, and additives. Polymers are the building blocks from which fibers, resins, and many additives are formed. Fibers are sourced from natural and synthetic polymers and also inorganic materials. They are available in nanofiber form. In dry formed and wet laid web operations, fibers are the basic raw material fed into the web forming process. In spun-web processes, polymers are spun into fibers that lay down randomly to form the web. Resins are the glue holds the fibers together and provide various properties to the Nonwoven web. Additives add properties to the web such as adsorption, color, flame retardancy, water repellency etc. Membrane Filter media are composed of natural, synthetic, and inorganic materials.
Lei Li - One of the best experts on this subject based on the ideXlab platform.
-
Designing high-caliber Nonwoven Filter mats for coalescence filtration of oil/water emulsions
Separation and Purification Technology, 2015Co-Authors: Dan Hu, Lei Li, Xiaoyu Li, Chuanfang YangAbstract:Oily wastewater is a major problem in industries that can cause severe environmental pollution without proper treatment. In this paper, an easily fabricated, robust and durable Nonwoven fibrous Filter mat was prepared for coalescence filtration of four kinds of oil-in-water emulsions, namely hexadecane/water, octane/water, soybean oil/water and engine oil/water. An aromatic thermoplastic polyurethane resin (TPU) was selected to bind the fibers together for structure integrity of the mat. Special roughening treatment to the mat was conducted to deliver the required wettability for effective coalescence separation of these emulsions. The Filter mat thus prepared reached a tensile strength of 2.99 MPa, 20 times stronger than that of the pristine mat. The mat surface was made both hydrophilic and superoleophilic, allowing it to have separation efficiency as high as 99.61% in a single pass flow. Moreover, even pre-saturated with oil, the mat remained effective in separation and permitted high flow, proving its high caliber for potential industrial applications. (C) 2015 Elsevier B.V. All rights reserved.
-
designing high caliber Nonwoven Filter mats for coalescence filtration of oil water emulsions
Separation and Purification Technology, 2015Co-Authors: Dan Hu, Lei Li, Xiaoyu Li, Chuanfang YangAbstract:Oily wastewater is a major problem in industries that can cause severe environmental pollution without proper treatment. In this paper, an easily fabricated, robust and durable Nonwoven fibrous Filter mat was prepared for coalescence filtration of four kinds of oil-in-water emulsions, namely hexadecane/water, octane/water, soybean oil/water and engine oil/water. An aromatic thermoplastic polyurethane resin (TPU) was selected to bind the fibers together for structure integrity of the mat. Special roughening treatment to the mat was conducted to deliver the required wettability for effective coalescence separation of these emulsions. The Filter mat thus prepared reached a tensile strength of 2.99 MPa, 20 times stronger than that of the pristine mat. The mat surface was made both hydrophilic and superoleophilic, allowing it to have separation efficiency as high as 99.61% in a single pass flow. Moreover, even pre-saturated with oil, the mat remained effective in separation and permitted high flow, proving its high caliber for potential industrial applications. (C) 2015 Elsevier B.V. All rights reserved.
-
In situ growing directional spindle TiO2 nanocrystals on cellulose fibers for enhanced Pb2+ adsorption from water
Journal of Hazardous Materials, 2015Co-Authors: Yanxiang Li, Lixia Cao, Lei Li, Chuanfang YangAbstract:TiO2/cellulose nanocomposite was synthesized by in situ generation of titanium dioxide (TiO2) nanocrystals on cellulose fibers (CF) via facile hydrolysis of TiOSO4. Cellulose was intended as a scaffold to immobilize TiO2 nanoparticles (NPs), but turned out surprisingly to be also a chemical template that directed the crystal growth. As a result, spindle rutile TiO2 crystals were nicely formed on the surface of cellulose. These crystals were further controlled to disperse uniformly without agglomeration for better use of their surface area to adsorb heavy metals. The TiO2/CF composite showed enhanced adsorption capacity, good regenerability and selectivity for lead (Pb2+) removal. In addition, the composite fibers were readily fabricated into a Nonwoven Filter bed through which dynamic filtration experiment was conducted. A 12-fold increase in Filtered bed volume was achieved for TiO2/CF bed compared with pure CF bed before breakthrough took place. This work provides a green pathway for fabricating low cost, high efficiency and engineering application possible nanosorbents for water decontamination.
Dan Hu - One of the best experts on this subject based on the ideXlab platform.
-
designing high caliber Nonwoven Filter mats for coalescence filtration of oil water emulsions
Separation and Purification Technology, 2015Co-Authors: Dan Hu, Lei Li, Xiaoyu Li, Chuanfang YangAbstract:Oily wastewater is a major problem in industries that can cause severe environmental pollution without proper treatment. In this paper, an easily fabricated, robust and durable Nonwoven fibrous Filter mat was prepared for coalescence filtration of four kinds of oil-in-water emulsions, namely hexadecane/water, octane/water, soybean oil/water and engine oil/water. An aromatic thermoplastic polyurethane resin (TPU) was selected to bind the fibers together for structure integrity of the mat. Special roughening treatment to the mat was conducted to deliver the required wettability for effective coalescence separation of these emulsions. The Filter mat thus prepared reached a tensile strength of 2.99 MPa, 20 times stronger than that of the pristine mat. The mat surface was made both hydrophilic and superoleophilic, allowing it to have separation efficiency as high as 99.61% in a single pass flow. Moreover, even pre-saturated with oil, the mat remained effective in separation and permitted high flow, proving its high caliber for potential industrial applications. (C) 2015 Elsevier B.V. All rights reserved.
-
Designing high-caliber Nonwoven Filter mats for coalescence filtration of oil/water emulsions
Separation and Purification Technology, 2015Co-Authors: Dan Hu, Lei Li, Xiaoyu Li, Chuanfang YangAbstract:Oily wastewater is a major problem in industries that can cause severe environmental pollution without proper treatment. In this paper, an easily fabricated, robust and durable Nonwoven fibrous Filter mat was prepared for coalescence filtration of four kinds of oil-in-water emulsions, namely hexadecane/water, octane/water, soybean oil/water and engine oil/water. An aromatic thermoplastic polyurethane resin (TPU) was selected to bind the fibers together for structure integrity of the mat. Special roughening treatment to the mat was conducted to deliver the required wettability for effective coalescence separation of these emulsions. The Filter mat thus prepared reached a tensile strength of 2.99 MPa, 20 times stronger than that of the pristine mat. The mat surface was made both hydrophilic and superoleophilic, allowing it to have separation efficiency as high as 99.61% in a single pass flow. Moreover, even pre-saturated with oil, the mat remained effective in separation and permitted high flow, proving its high caliber for potential industrial applications. (C) 2015 Elsevier B.V. All rights reserved.
Xiaoyu Li - One of the best experts on this subject based on the ideXlab platform.
-
designing high caliber Nonwoven Filter mats for coalescence filtration of oil water emulsions
Separation and Purification Technology, 2015Co-Authors: Dan Hu, Lei Li, Xiaoyu Li, Chuanfang YangAbstract:Oily wastewater is a major problem in industries that can cause severe environmental pollution without proper treatment. In this paper, an easily fabricated, robust and durable Nonwoven fibrous Filter mat was prepared for coalescence filtration of four kinds of oil-in-water emulsions, namely hexadecane/water, octane/water, soybean oil/water and engine oil/water. An aromatic thermoplastic polyurethane resin (TPU) was selected to bind the fibers together for structure integrity of the mat. Special roughening treatment to the mat was conducted to deliver the required wettability for effective coalescence separation of these emulsions. The Filter mat thus prepared reached a tensile strength of 2.99 MPa, 20 times stronger than that of the pristine mat. The mat surface was made both hydrophilic and superoleophilic, allowing it to have separation efficiency as high as 99.61% in a single pass flow. Moreover, even pre-saturated with oil, the mat remained effective in separation and permitted high flow, proving its high caliber for potential industrial applications. (C) 2015 Elsevier B.V. All rights reserved.
-
Designing high-caliber Nonwoven Filter mats for coalescence filtration of oil/water emulsions
Separation and Purification Technology, 2015Co-Authors: Dan Hu, Lei Li, Xiaoyu Li, Chuanfang YangAbstract:Oily wastewater is a major problem in industries that can cause severe environmental pollution without proper treatment. In this paper, an easily fabricated, robust and durable Nonwoven fibrous Filter mat was prepared for coalescence filtration of four kinds of oil-in-water emulsions, namely hexadecane/water, octane/water, soybean oil/water and engine oil/water. An aromatic thermoplastic polyurethane resin (TPU) was selected to bind the fibers together for structure integrity of the mat. Special roughening treatment to the mat was conducted to deliver the required wettability for effective coalescence separation of these emulsions. The Filter mat thus prepared reached a tensile strength of 2.99 MPa, 20 times stronger than that of the pristine mat. The mat surface was made both hydrophilic and superoleophilic, allowing it to have separation efficiency as high as 99.61% in a single pass flow. Moreover, even pre-saturated with oil, the mat remained effective in separation and permitted high flow, proving its high caliber for potential industrial applications. (C) 2015 Elsevier B.V. All rights reserved.
