Download or read book Development of Bamboo Derived Sorbents for Gas Phase Adsorption of Elemental Mercury written by Naved Ahmed Siddiqui and published by . This book was released on 2009 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mercury is a serious hazard which, when emitted into the atmosphere, reaches back to the earth. Coal-fired plants in the U.S. emit mercury upon the burning of coal in the particulate, oxidized and elemental state. Of these, elemental mercury is the most difficult to capture. U.S. coal-fired plants emit approximately 48 tons of mercury per year. Based on the U.S. EPA Clean Air Mercury Rule, these emissions need to be capped by 90%. This project deals with the Development of Bamboo Derived Sorbents for the capture of elemental mercury in gas phase. Results and analyses of these sorbents depict successful capture of mercury in nitrogen atmosphere. Treatments such as carbon dioxide activation and hydrochloric acid functionalization are very effective in enhancing mercury adsorption. This project acts as a stepping stone for the development of bamboo derived material.

Download or read book Issues in Global Environment Pollution and Waste Management 2013 Edition written by and published by ScholarlyEditions. This book was released on 2013-05-01 with total page 1073 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Global Environment—Pollution and Waste Management: 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Particle and Fiber Toxicology. The editors have built Issues in Global Environment—Pollution and Waste Management: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Particle and Fiber Toxicology in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Global Environment—Pollution and Waste Management: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Download or read book Advanced Adsorbents for Capture of Vapor phase Mercury and Other Toxic Components from Flue Gas written by Juan He and published by . This book was released on 2013 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: During coal combustion, mercury and arsenic are volatized and are present in multiple forms in the gas phase; similarly, the formation of nitrogen oxides in flue gas depends on nitrogen content of the coal and oxygen available to react with nitrogen. New approaches for cost-effective control of mercury and other pollutants are necessary. In this work, a group of room temperature ionic liquid coated nanostructured chelating adsorbents was developed and used for gas-phase mercury and arsenic adsorption; the simultaneous removal of mercury and nitrogen oxide using ceria-modified manganese oxide/titania materials was investigated. Three thermally robust adsorbents, 25 wt% [bmim]Cl coated-MPTS-Si, 25 wt% [bmim]Cl-MPTS-MCF and 25 wt% [bmim]Cl-Ambersep[superscript TM] GT74 were synthesized and demonstrated to be effective adsorbents for simultaneous capture of oxidized and elemental mercury at 160°C. Mercury from vapor phase dissolves in the [bmim]Cl ionic liquid layer;and subsequently bonds to the chelating ligands of MPTS or directly coordinates with the sulfur-containing groups from Ambersep[superscript TM]GT74 resin. In fixed-bed adsorption experiments, the 25 wt% [bmim]Cl-MPTS-Si exhibited the largest mercury (Hg2 and Hg0) capacity in an inert atmosphere. A mathematical model was developed to describe mercury removal based on the experimental data measured at laboratory-scale. To synthesize adsorbents for both mercury and arsenic capture, both [bmim]Cl and an amino acid-based RTIL, [TBP][Tau], were supported on a silica gel with high surface area and accessible mesopores. In both fixed-bed and batch adsorption modes, all of the RTIL-coated silica adsorbents can effectively remove Hg0 and As(III) simultaneously, and exhibited high As(III) capacities. Because of the high solubility of CO2 in the [TBP][Tau] RTIL, the presence of CO2 caused a negative effect on the Hg0 and As(III) adsorption performance of [TBP][Tau]-Si. High surface area ceria-titania materials are used as supports for manganese oxide for both warm-gas mercury capture and low temperature selective catalytic reduction. Remarkably, these materials exhibit high Hg0 adsorption capacities and excellent NO removal performance both in single-component tests and in combined NO and Hg0 removal experiments at 175°C. For the Hg0 adsorption, MnOx/CeO2-TiO2 adsorbents had large Hg0 capacities up to 37 mg g−1. SO2 inhibited Hg0 adsorption on the surface of MnOx, but the CeO2-TiO2 support retained most of its Hg0 capacity in the presence of 100 ppm SO2 The simultaneous capture of Hg0 and Hg2 at 175°C was observed using CeO2-TiO2 support. Both the NO adsorption and co-adsorption of NO + CO can be found over the surface of MnOx/CeO2-TiO2 materials. The results of XPS analysis suggest that the presence of lattice oxygen play important role on the mercury and NO adsorption, with great formation of HgO and nitrate species; in the presence of CO in the feed gas, mercury adsorption doesn't inhibit the SCR activity of NO. In summary, the nanostructured, RTILs coated chelating adsorbents and manganese supported on ceria-titania oxide materials were successfully developed and studied for removal of gas-phase mercury and other toxic components. The experimental results suggest these novel adsorbents could be technically feasible for multi-pollutants control in coal combustion.

Download or read book Development and Evaluation of Low cost Sorbents for Removal of Mercury Emissions from Coal Combustion Flue Gas written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Determining how physical and chemical properties of sorbents affect vapor-phase mercury adsorption has led to potential approached for tailoring the properties of sorbents for more effective mercury removal. ... Objectives: to determine how physical and chemical properties of sorbents affect mercury adsoprtion; to develop more cost-effective sorbents"--P. v.

Download or read book Novel Nano structured Sorbents for Elemental and Oxidized Mercury Removal from Flue Gas written by Lei Ji and published by . This book was released on 2008 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermally robust chelating adsorbents, 3-mercaptopropyltrimethoxysilane silica (MPTS-silica) and 3-aminopropyltiethoxysilane 2-mercaptobenzothialzole silica (APTS-MBT-silica), were proven to be very effective in capture HgCl2 from simulated flue gas at elevated temperatures in a fixed-bed mode. For MPTS-silica, a minimum of 58 mg/g HgCl2 capacity was observed. Pore size of the silica substrate does not have significant effect while particle size was found to have a significant effect on mercury capture; this effect was believed to be due to an enhanced channeling effect for the larger particle size adsorbent. A new approach for simultaneous removal of elemental and oxidized mercury from flue gas was successfully developed by using a room temperature ionic liquid (RTIL) coating layer. Six RTILs were synthesized and tested for their potential of elemental and oxidized mercury capture. These RTIL coating layers are all thermally stable above 160°C and the coating of these RTIL does not have any negative effect on the thermal stability of the chelating ligands. 1-butyl-3-methyl-imidazolium chloride ([bmim]Cl) was identified to be the most promising RTIL for simultaneous elemental and oxidized mercury removal from flue gas. 25 wt% [bmim]Cl coated MPTS-silica showed a 10 mg/g saturated elemental mercury capacity and a minimum of 38 mg/g oxidized mercury capacity in a fixed-bed mode. A low temperature selective catalytic reduction (SCR) catalyst, manganese oxide supported on titania, was tested as a sorbent for elemental mercury capture from flue gas at high temperatures. It was shown that this material showed high mercury capacity and remained active for mercury capture even after use for NOx reduction. Water vapor and manganese loading do not have a significant effect on mercury capture. However, SO2 has a strong negative effect on mercury removal process. Bed temperature was found to have a significant effect on mercury capture process. HgO formed during the mercury adsorption process by this material and it was believed that the mercury adsorption follows Mars-Maessen mechanism.

Download or read book Biochar for Environmental Management written by Dr. Johannes Lehmann and published by Earthscan. This book was released on 2009 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Biochar is the carbon-rich product when biomass (such as wood, manure, or crop residues) is heated in a closed container with little or no available air. It can be used to improve agriculture and the environment in several ways, and its stability in soil and superior nutrient-retention properties make it an ideal soil amendment to increase crop yields. In addition to this, biochar sequestration, in combination with sustainable biomass production, can be carbon-negative and therefore used to actively remove carbon dioxide from the atmosphere, with major implications for mitigation of climate change. Biochar production can also be combined with bioenergy production through the use of the gases that are given off in the pyrolysis process.This book is the first to synthesize the expanding research literature on this topic. The book's interdisciplinary approach, which covers engineering, environmental sciences, agricultural sciences, economics and policy, is a vital tool at this stage of biochar technology development. This comprehensive overview of current knowledge will be of interest to advanced students, researchers and professionals in a wide range of disciplines"--Provided by publisher.

Download or read book Biosorbents for Metal Ions written by D A John Wase and published by CRC Press. This book was released on 1997-08-05 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metals can be dispersed, both naturally and by man's activities, into any of the Earth's elements - soil, water or air. Biological techniques for removing metal pollutants from soil, air or water are now attracting great interest, both because they are seen as more environmentally friendly than chemical treatments, and because, in some cases at lea

Download or read book Inorganic Pollutants in Water written by Pooja Devi and published by Elsevier. This book was released on 2020-03-18 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inorganic Pollutants in Water provides a clear understanding of inorganic pollutants and the challenges they cause in aquatic environments. The book explores the point of source, how they enter water, the effects they have, and their eventual detection and removal. Through a series of case studies, the authors explore the success of the detection and removal techniques they have developed. Users will find this to be a single platform of information on inorganic pollutants that is ideal for researchers, engineers and technologists working in the fields of environmental science, environmental engineering and chemical engineering/ sustainability. Through this text, the authors introduce new researchers to the problem of inorganic contaminants in water, while also presenting the current state-of-the-art in terms of research and technologies to tackle this problem. Presents existing solutions to pollution problems, along with their challenges Includes case studies that detail success stories, challenges and the implementation of these tools Provides solutions that are both economically and ecologically sustainable

Download or read book Pyrolysis of Biomass written by Shurong Wang and published by Walter de Gruyter GmbH & Co KG. This book was released on 2016-12-05 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the development of societies fossil energy is no longer the only energy resource, and increasing attention had been paid to alternative energy. Biomass is considered to be one of the alternatives due to efficiency and low cost. This book presents biomass pyrolysis behavior for three main components: Cellulose, Hemicellulose and Lignin, and discusses the influence of mineral salts , zeolite catalysts and metal oxide on their pyrolysis.

Download or read book Metal organic Frameworks for Environmental Remediation written by Pooja Ghosh and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Applications of Biochar for Environmental Safety written by Ahmed Abdelhafez and published by BoD – Books on Demand. This book was released on 2020-07-22 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biochar is a carbon-rich material produced from the pyrolysis of organic materials from agricultural and forestry biomass at a relatively low temperature in the absence of oxygen. As such, it has potential for solving many agricultural and environmental problems.This book is divided into five sections: “Introduction,” “Production and Legislation of Biochar,” “Applications of Biochar for Soil Fertility Improvement,” “Role of Biochar for Soil Remediation and Ameliorating Salinity Effects” and “Applications of Biochar for Water Treatment.” Chapters address topics such as the pros and cons of biochar, its production, and its role in remediating and treating contaminated soils and water.

Download or read book Green Adsorbents for Pollutant Removal written by Grégorio Crini and published by Springer. This book was released on 2018-07-31 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second volume on adsorption using green adsorbents and is written by international contributors who are the leading experts in the adsorption field. Together with the first volume they show a typical selection of green materials used in wastewater treatment, with emphasis on industrial effluents. This second volume focuses on innovative materials. It presents hemp-based materials for metal removal, and the use of leaves for metal removal. It describes the biosorption of metals and metalloids on various materials and discusses the recent advances in cellulose-based adsorbents used in environmental purposes. Furthermore, activated carbons from food wastes, aerogels and bones, and municipal solid waste biochar as efficient materials for pollutant removal, respectively are reviewed as well as biosorption of dyes onto microbial biosorbents and the use of mushroom biomass to remove pollutants are looked at. The volume also includes detailed review of green adsorbents for removal of antibiotics, pesticides and endocrine disruptors and the use of pillared interlayered clays as innovative materials for pollutant removal. Finally, the use of green adsorbents for radioactive pollutant removal from natural water is discussed. The audience for this book includes students, environmentalists, engineers, water scientists, civil and industrial personnel who wish to specialize in adsorption technology. Academically, this book will be of use to students in chemical and environmental engineering who wish to learn about adsorption and its fundamentals. It has also been compiled for practicing engineers who wish to know about recent developments on adsorbent materials in order to promote further research toward improving and developing newer adsorbents and processes for the efficient removal of pollutants from industrial effluents. It is hoped that the book will serve as a readable and useful presentation not only for undergraduate and postgraduate students but also for the water scientists and engineers and as a convenient reference handbook in the form of numerous recent examples and appended information.

Download or read book Emission and Control of Trace Elements from Coal Derived Gas Streams written by Yongchun Zhao and published by Woodhead Publishing. This book was released on 2019-07-12 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emission and Control of Trace Elements from Coal-Derived Gas Streams presents an up-to-date and focused analysis on Trace element (TEs) emissions and control strategies during coal utilization. This book provides insights into how TE's in coal are distributed from different coal-forming periods, coal ranks and coal-bearing regions. As the emission and control of TEs during coal utilization are a significant concern, this book introduces TEs in coal and pollution in an accessible way before discussing why they occur and how they are distributed during various stages of coal forming, also considering various regions and countries. Specific types of TEs in relation to partition in coal combustion, coal fires, gasification and coal feed furnace are then analyzed, providing the reader with practical knowledge to apply to their own research or projects. This book is an essential reference for energy engineers researching and working in coal technology, with a specific focus on emission control, as well as graduate students and researchers in energy engineering, environmental, thermal and chemical engineering who have an interest in trace element emission and control from coal utilization. - Presents characteristics of TE emissions during coal utilization in laboratory-scale experiments, industrial furnaces and power plants - Considers different legislation and case studies from various regions and countries - Includes contributions from world renowned experts - Presents a concise and focused analysis on TE emissions and control strategies

Download or read book Biosorption of Heavy Metals written by Bohumil Volesky and published by CRC Press. This book was released on 1990-08-15 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: This state-of-the-art volume represents the first comprehensively written book which focuses on the new field of biosorption. This fascinating work conveys essential fundamental information and outlines the perspectives of biosorption. It summarizes the metal-sorbing properties of nonliving bacterial, fungal, and algal biomass, plus highlights relevant metal-binding mechanisms. This volume also discusses the aspects of obtaining and processing microbial biomass and metal-chelating chemicals into industrially applicable biosorbent products. Microbiologists, chemists, and engineers with an interest in new technological and scientific horizons will find this reference indispensable.

Download or read book Biochar from Biomass and Waste written by Yong Sik Ok and published by Elsevier. This book was released on 2018-11-02 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biochar from Biomass and Waste: Fundamentals and Applications provides the fundamentals of biochar, such as its basic concepts, production technology and characterization methods, also including comprehensive examples for readers. This book includes information on state-of-art biochar application technologies in the fields of agriculture, energy and environmental sciences with step-by-step case studies. Biochar has received worldwide interests in the past decade because it encompasses high priority research areas, including bioenergy production, global warming mitigation and sustainable agriculture. - Offers comprehensive coverage of biochar production, characterization and modification methods - Provides global case studies covering a wide range of application fields, including environmental, agricultural, syngas and bio-oil - Covers the sustainability and future of biochar

Download or read book Applied Bioremediation written by Yogesh Patil and published by BoD – Books on Demand. This book was released on 2013-10-02 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioremediation technologies are gaining immense credibility in the field of waste management because of their eco-compatibility nature. Biomass can interact and confront with water and soil pollutants in both active (live) as well as passive (dead) way, thereby offering numerous opportunities of exploring them for environmental clean-up. In 21st century, wastes are no longer a waste but are recognized as a valuable Resource. Employing novel and integrated strategies for the development of modern bioremediation processes is desperate need of the hour. This edited book on Applied Bioremediation - Active and Passive Approaches contains mix of interesting chapters that will certainly add to the advancement of knowledge and will provide the required valuable resource and stimulus to the researchers worldwide.

Download or read book Green Adsorbents written by George Z. Kyzas and published by Bentham Science Publishers. This book was released on 2015-12-01 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adsorption technology is a promising avenue for wastewater treatment. Numerous adsorbent materials are presently synthesized. Green or environmental friendly adsorbents are derived from plants and agricultural crop sources, giving them a very low production cost when compared to synthetic polymers. This monograph explains the basic principles of green adsorption technology, their production processes and strategies to remove different categories of environmental pollutants (dyes, heavy metals and phenols/pesticides). The book explains details in terms of features such as adsorption capacity, physico-chemical kinetics and reuse potential. A summary of the economics and future prospect for green adsorption technology is also given. This text is a handy reference for environmental chemistry students, researchers and policy makers.