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  • 1
    ISBN: 9781003364085 , 9781032359014 , 9781032427423
    Sprache: Unbestimmte Sprache
    Seiten: 1 Online-Ressource (222 p.)
    Serie: Emerging Materials and Technologies
    Schlagwort(e): Water supply & treatment ; Environmental science, engineering & technology ; Advanced Oxidation Process ; Industrial Wastewater ; Iron Catalysts ; Nanotechnology, Nano-Oxides ; Refractory Organic Compounds ; Wastewater Quality Assessment
    Kurzfassung: The presence of refractory organic compounds in wastewater is a global problem. Advanced oxidation processes, in general, and the Fenton oxidation process are alternative technologies for wastewater and water treatment. This book gives an overview of Fenton process principles, explains the main factors influencing this technology, includes applications, kinetic and thermodynamic calculations and presents a strong overview on the heterogeneous catalytic approach. It demonstrates that the iron-based heterogeneous Fenton process, including nanoparticles, a new complex solution, is highly efficient, environmentally friendly, and can be suitable for wastewater treatment and industrial wastewater. FEATURES Describes in detail the heterogeneous Fenton process and process applications Analyzes the advantages and disadvantages of different catalysts available and their suitability to specific processes Provides economic analysis of the Fenton process in a ready-to-use package for industrial practitioners for adaptation into already existing industrially viable technologies Promotes a modern solution to the problem of degradation of hazardous compounds through ecological and environmentally friendly processes and the use of a catalyst that can be recycled Explains highly complex data in an understandable and reader-friendly way Intended for professionals, researchers, upper-level undergraduate and graduate students in environmental engineering, materials science, chemistry, and those who work in wastewater management
    Anmerkung: English
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    ISBN: 9781032359014 , 9781032427423
    Sprache: Unbestimmte Sprache
    Seiten: 1 Online-Ressource (9 p.)
    Schlagwort(e): Water supply & treatment ; Environmental science, engineering & technology ; Advanced Oxidation Process ; Industrial Wastewater ; Iron Catalysts ; Nanotechnology, Nano-Oxides ; Refractory Organic Compounds ; Wastewater Quality Assessment
    Kurzfassung: Chapter 9 - The heterogeneous Fenton process can generate a large number of compounds that can be toxic to the environment, and more toxic by-products than the parent compounds can appear after the treatment process. The heterogeneous Fenton process is used to decompose contaminants by rapid oxidation in the presence of a catalyst. Iron oxides, commonly used as catalysts, are considered to be non-toxic, but there are reports of toxicity towards certain organisms. Therefore, studies on the stability of the catalysts used in the process and their potential threats to living organisms are necessary. It is essential to constantly work on the stability of the catalyst. The toxicity of the by-products is also crucial. According to the reports, the decrease in viability of organisms is organism-specific and dose-dependent, and the lethal effect is strictly related to the size of particles. Incomplete mineralization can also result in hazardous, potentially toxic compounds in the effluent. Thus, the toxicity of effluent also needs to be studied, and biodegradability needs to be increased to reduce the toxicity of the process
    Anmerkung: English
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    ISBN: 9781032359014 , 9781032427423
    Sprache: Unbestimmte Sprache
    Seiten: 1 Online-Ressource (41 p.)
    Schlagwort(e): Water supply & treatment ; Environmental science, engineering & technology ; Advanced Oxidation Process ; Industrial Wastewater ; Iron Catalysts ; Nanotechnology, Nano-Oxides ; Refractory Organic Compounds ; Wastewater Quality Assessment
    Kurzfassung: Chapter 3 - The right choice of catalyst is one of the elements that determine its effectiveness. Among the most commonly used catalysts, we use iron, as well as its modifications and forms such as zero-valent iron, iron oxides, etc. magnetite (Fe3O4), hematite (Fe2O3), and goethite (FeOOH) or their nanoparticles. They have a high surface area, which enhances their catalytic activity and can be easily separated from the treated water. Another popular and environmentally friendly form is waste iron, which is the product from industry such as blast furnace slag or steel slags. Moreover, iron could be dropped on carbon materials, and various carriers
    Anmerkung: English
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    ISBN: 9781032359014 , 9781032427423
    Sprache: Unbestimmte Sprache
    Seiten: 1 Online-Ressource (25 p.)
    Schlagwort(e): Water supply & treatment ; Environmental science, engineering & technology ; Advanced Oxidation Process ; Industrial Wastewater ; Iron Catalysts ; Nanotechnology, Nano-Oxides ; Refractory Organic Compounds ; Wastewater Quality Assessment
    Kurzfassung: Chapter 4 - Iron-based heterogeneous Fenton processes have been used to remove organic pollutants from wastewater. However, their efficiency is limited by iron's low solubility and iron sludge formation. Iron-based nanomaterials have been proposed to enhance the performance of the Fenton process. Researchers can employ zero-valent iron and iron oxide nanoparticles in their processes, to mention a few. This chapter reviews the recent findings in various iron-based nanostructures, their synthesis and characterization, and their application in iron-based Fenton processes. The nano-effects involved in the degradation of organic pollutants and the factors that boost the performance of the process are also discussed. It is concluded by highlighting the potential of nanomaterials in enhancing the efficiency of iron-based Fenton processes for wastewater treatment and identifying the challenges and future directions in this field
    Anmerkung: English
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 5
    ISBN: 9781032409337 , 9781032409306
    Sprache: Unbestimmte Sprache
    Seiten: 1 Online-Ressource (19 p.)
    Schlagwort(e): Education ; Educational strategies & policy
    Kurzfassung: This chapter reviews the current canons of educational research and considers how they can be uncoupled from hegemonic knowledge paradigms which privilege Northern contexts. It outlines contributions from decolonial thinking and Southern theory and shows what must change if new epistemologies and ontologies are to emerge. It focuses on Southern epistemologies that illuminate ways of researching education in Southern contexts by students from the South researching their own contexts, and those trained in the North but researching Southern contexts. We consider critically the ways in which qualitative and quantitative research into structures, processes, and interactions have been challenged historically and the contemporary debates about whether, and if so how, such ethical and practical approaches can be transferred and be of value within Global South societies. Important insights are provided by experienced education researchers tackling the challenge of creating, identifying, or adapting research ethics, methods of data collection, and forms of data analysis
    Anmerkung: English
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  • 6
    ISBN: 9781003355397 , 9781032409337 , 9781032409306
    Sprache: Unbestimmte Sprache
    Seiten: 1 Online-Ressource
    Schlagwort(e): Education ; Educational strategies & policy ; Sharlene Swartz, Nidhi Singal, Madeleine Arnot, research methods, educational research methods, research methods in education, Global South, southern contexts, decolonization, decolonizing education
    Kurzfassung: Bringing together a unique collection of 18 insightful and innovative internationally focused articles, Educational Research Practice in Southern Contexts offers reflections, case studies, and critically, research methods and processes designed to decentre, reframe, and reimagine educational research in ways that question existing approaches and operationalise the tenets of decolonising theory. This anthology represents a valuable teaching resource with which to challenge the conventional canons of educational research theory and practice. It provides readers with the chance to read high quality examples of research that critique current ways of doing research and to reflect on how research methods can contribute to the project of decolonising knowledge production in and about education in, for example, Africa, South Asia, Asia and Latin America. It grapples with everyday dilemmas and tricky ethical questions about protection, consent, voice, cultural sensitivity and validation, by engaging with real-world situations and increasing the potential for innovation and new collaborations. Educational Research Practice in Southern Contexts will be essential reading for anyone teaching educational research methods and will encourage novice and experienced researchers to rethink their research approaches, disentangle the local and global, and challenge those research rituals, codes and field work practices which are often unproblematically assumed to be universally relevant
    Anmerkung: English
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 7
    ISBN: 9780367264895
    Sprache: Unbestimmte Sprache
    Seiten: 1 Online-Ressource (17 p.)
    Schlagwort(e): Education
    Kurzfassung: "The introduction explains the rationale for focusing on education reform in relation to the tackling of social inequality in Southern contexts. The aim of the book is to bring together the analysis of past evidence of social inequality and the associated reforms that attempted to reduce it, with contemporary research evidence that highlights the ongoing challenges faced by disadvantaged groups as well as important potentially neglected aspects of social discrimination. The introduction highlights the importance of interdisciplinary research and methodologies, including the perspectives of Southern researchers, for addressing progress towards the Sustainable Development Goals. Such collaborative dialogue challenges the boundaries and often taken-for granted assumptions of policy-making globally, nationally and locally. It aims to inform educational and social science researchers in different locations to improve their understanding about the complexity of social structures and values that influence socially unequal contexts. Overall, the aim of this edited collection is to consider how educational policy can work more effectively to promote social justice for all."
    Anmerkung: English
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 8
    ISBN: 9780429293467 , 9780367264895
    Sprache: Unbestimmte Sprache
    Seiten: 1 Online-Ressource
    Schlagwort(e): Education ; education
    Kurzfassung: This book offers in-depth analyses of how education interacts with social inequality in Southern contexts. Drawing on a range of disciplinary frameworks, it presents new analyses of existing knowledge and new empirical data which define the challenges and possibilities of successful educational reform. It is a tribute to the work of the late Christopher Colclough, who, as a leading figure in education and international development, played a key role in the global fight for education for all children.The book critically engages with international evidence of educational access, retention and outcomes, offering new understandings of how social inequalities currently facilitate, mediate or restrict educational opportunities. It exposes the continuing influence of wealth and regional inequalities and caste and gendered social structures. Researchers in Ethiopia, Ghana, India, Pakistan and Uganda highlight how the aspirations of families living in poverty remain unfilled by poor-quality education and low economic opportunities and how schools and teachers currently address issues of gender, disability and diversity. The book highlights a range of new priorities for research and identifies some necessary strategies for education reform, policy approaches and school practice, if educational equality for all children is to be achieved. The book will be of great interest to researchers, scholars, educational practitioners and policy-makers in the fields of economics, politics and sociology of education, international education, poverty research and international development. Chapters 1, 6, 7 and 12 of this book are freely available as a downloadable Open Access PDF under a Creative Commons Attribution 4.0 license (Ch7) and Creative Commons AttributionNon Commercial-No Derivatives 4.0 license (Chs 1/ 6/ 12) available at https://www.taylorfrancis.com/books/e/9780429293467
    Anmerkung: English
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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