The Experts below are selected from a list of 61917 Experts worldwide ranked by ideXlab platform
Inmaculada Ortiz - One of the best experts on this subject based on the ideXlab platform.
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liquid Membrane Technology fundamentals and review of its applications
Journal of Chemical Technology & Biotechnology, 2010Co-Authors: M San F Roman, Eugenio Bringas, Raquel Ibanez, Inmaculada OrtizAbstract:OVERVIEW: During the past two decades, liquid Membrane Technology has grown into an accepted unit operation for a wide variety of separations. The increase in the use of this Technology owing to strict environmental regulations and legislation together with the wider acceptance of this Technology in preference to conventional separation processes has led to a spectacular advance in Membrane development, module configurations, applications, etc. IMPACT: Liquid Membrane Technology makes it possible to attain high selectivity as well as efficient use of energy and material relative to many other separation systems. However, in spite of the known advantages of liquid Membranes, there are very few examples of industrial applications because of the problems associated with the stability of the liquid Membrane. APPLICATIONS: Liquid Membrane Technology has found applications in the fields of chemical and pharmaceutical Technology, bioTechnology, food processing and environmental engineering. On the other hand, its use in other fields, such as in the case of hydrogen separation, the recovery of aroma compounds from fruits, the application of ionic liquids in the Membrane formulation, etc., is increasing rapidly. c � 2009 Society of Chemical Industry
M San F Roman - One of the best experts on this subject based on the ideXlab platform.
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liquid Membrane Technology fundamentals and review of its applications
Journal of Chemical Technology & Biotechnology, 2010Co-Authors: M San F Roman, Eugenio Bringas, Raquel Ibanez, Inmaculada OrtizAbstract:OVERVIEW: During the past two decades, liquid Membrane Technology has grown into an accepted unit operation for a wide variety of separations. The increase in the use of this Technology owing to strict environmental regulations and legislation together with the wider acceptance of this Technology in preference to conventional separation processes has led to a spectacular advance in Membrane development, module configurations, applications, etc. IMPACT: Liquid Membrane Technology makes it possible to attain high selectivity as well as efficient use of energy and material relative to many other separation systems. However, in spite of the known advantages of liquid Membranes, there are very few examples of industrial applications because of the problems associated with the stability of the liquid Membrane. APPLICATIONS: Liquid Membrane Technology has found applications in the fields of chemical and pharmaceutical Technology, bioTechnology, food processing and environmental engineering. On the other hand, its use in other fields, such as in the case of hydrogen separation, the recovery of aroma compounds from fruits, the application of ionic liquids in the Membrane formulation, etc., is increasing rapidly. c � 2009 Society of Chemical Industry
Jihua Wang - One of the best experts on this subject based on the ideXlab platform.
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overview of Membrane Technology applications for industrial wastewater treatment in china to increase water supply
Resources Conservation and Recycling, 2015Co-Authors: Xiang Zheng, Zhenxing Zhang, Dawei Yu, Xiaofen Chen, Jiangquan Wang, Qingcong Xiao, Rong Cheng, Jihua WangAbstract:Abstract Treating and reusing industrial wastewater is one of many means to improve water supply capacity, especially within developing countries. In the past 15 years, remarkable progress has been achieved on the commercial applications of Membrane Technology in China. The Membranes demand in China exceeded 30 billion yuan (US$ 4.8 billion) in 2010, amounting for about 15% of the world total. However, the sate-of-the-art of Membrane applications in industrial wastewater treatment is not well understood and documented. This study performs a national survey of Membrane plants and Membrane manufacturers to investigate the characteristics of Membrane Technology applications for industrial wastewater treatment to increase water supply in China. The data obtained from the survey of Membrane plants were confirmed with the survey of Membrane manufacturers. It is aimed to provide comprehensive information of Membrane Technology applications for industrial wastewater treatment in China to guild the future development of the same kind of applications. The results indicate that 6.7 million m3 of wastewater per day (2.4 billion m3 per year) treatment capacity applies Membrane Technology. 580 Membrane plants have been successfully applied in practice for different industrial wastewater treatment. Petrochemical, power generation, and steel industries account for the majority of Membrane Technology applications, from both of number of Membrane plants and treatment capacity. Northern Chinese provinces which are rich in coal, crude petroleum, and ferrous ore but scarce in water resources have seen the most of Membrane practices. Water withdrawal for the power generation industry decreased substantially recently, as water use and reuse efficiency has been improved due to wide applications of advanced wastewater treatment methods such as Membrane Technology. With increasingly stringent emission standards faced by industry and water resources shortages confronted with China, it is expected Membrane Technology will play key role to address water quality and quantity issues in China. Membrane market in China is expected to grow at a relative high annual rate of approximate 15% for the next decade. It is worthy to note that environmental impacts due to Membrane Technology applications for industrial wastewater treatment, including Membrane pollution and high salinity water, shall be addressed.
Peter Czermak - One of the best experts on this subject based on the ideXlab platform.
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Membrane Technology for the Recovery of Lignin: A Review.
Membranes, 2016Co-Authors: Daniel Humpert, Mehrdad Ebrahimi, Peter CzermakAbstract:Utilization of renewable resources is becoming increasingly important, and only sustainable processes that convert such resources into useful products can achieve environmentally beneficial economic growth. Wastewater from the pulp and paper industry is an unutilized resource offering the potential to recover valuable products such as lignin, pigments, and water [1]. The recovery of lignin is particularly important because it has many applications, and Membrane Technology has been investigated as the basis of innovative recovery solutions. The concentration of lignin can be increased from 62 to 285 g∙L−1 using Membranes and the recovered lignin is extremely pure. Membrane Technology is also scalable and adaptable to different waste liquors from the pulp and paper industry.
Bjarne Nicolaisen - One of the best experts on this subject based on the ideXlab platform.
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Developments in Membrane Technology for water treatment
Desalination, 2003Co-Authors: Bjarne NicolaisenAbstract:Abstract Membrane Technology is widely accepted as a means of producing various qualities of water from surface water, well water, brackish water and seawater. Membrane Technology is also used in industrial processes and in industrial wastewater treatment, and lately Membrane Technology has moved into the area of treating secondary and tertiary municipal wastewater and oil field produced water. In many cases one Membrane process is followed by another with the purpose of producing water of increasing purity and quality for various purposes. One type of Membrane may thus enhance the function of another to meet goals ranging from disposal of wastewater to production of drinking water from unexpected sources. In this way Membrane Technology offers the possibility of managing the total water resources in a region, which is of special interest in geographical areas where the natural water resources are scarce. The spiral wound Membrane element configuration is the most widely used due to its high packing density and relatively low price. This paper will describe some technological advance in the area of innovative new Membranes and application concepts for spiral wound Membrane elements. Spiral wound elements span the four commonly defined Membrane technologies, which are microfiltration (0.01-0 microns), ultrafiltration (500–100,000 Da), nanofiltration (100–500 Da), and reverse osmosis (up to 100 Da). A sandwich consisting of two Membrane sheets with an inserted permeate carrier is glued together and to complete the Membrane package a feed spacer is inserted between the opposing Membrane surfaces. The Membrane package is wound around a perforated central tube through which the permeate exits the element. The physical shape of a Membrane element is secured by applying a suitable outer wrap. The physical and chemical properties of the various materials, including the Membrane, are chosen according to the operating parameters. The typical reverse osmosis elements have limitations with respect to temperature (45°C), pH value (2–10), silt density index (less than 3 SDI), chlorine (dechlorination mandatory) and several other parameters. This is acceptable for conventional pure water applications, but for more complex Membrane applications these limitations must be diminished or removed. Advanced materials and material science have been applied to the Membranes, materials and construction of spiral wound elements. This effort has resulted in elements with improved operating parameters and wider areas of applications. A host of new Membrane applications have been made possible and there is no limit in sight, except that new applications must rest on a profitable foundation for the user. Scarcity of water, environmental requirements and the simple logic of reusing water instead of discharging it are conditions, which call for increased use of Membrane Technology in a multitude of applications.
