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Books > Professional & Technical > Environmental engineering & technology

Water Supply Network District Metering - Theory and Case Study (Hardcover, 2013 ed.): Armando Di Nardo, Michele Di Natale, Anna... Water Supply Network District Metering - Theory and Case Study (Hardcover, 2013 ed.)
Armando Di Nardo, Michele Di Natale, Anna di Mauro
R2,630 Discovery Miles 26 300 Ships in 18 - 22 working days

The management of a water supply network can be substantially improved defining permanent sectors or districts that enhances simpler water loss detection and pressure management. However, the water network partitioning may compromise water system performance, since some pipes are usually closed to delimit districts in order not to have too many metering stations, to decrease costs and simplify water balance. This may reduce the reliability of the whole system and not guarantee the delivery of water at the different network nodes. In practical applications, the design of districts or sectors is generally based on empirical approaches or on limited field experiences. The book proposes a design support methodology, based on graph theory principles and tested on real case study. The described methodology can help water utilities, professionals and researchers to define the optimal districts or sectors of a water supply network.

Antibiotics and Antibiotics Resistance Genes in Soils - Monitoring, Toxicity, Risk Assessment and Management (Hardcover, 1st... Antibiotics and Antibiotics Resistance Genes in Soils - Monitoring, Toxicity, Risk Assessment and Management (Hardcover, 1st ed. 2017)
Muhammad Zaffar Hashmi, Vladimir Strezov, Ajit Varma
R5,155 R4,834 Discovery Miles 48 340 Save R321 (6%) Ships in 10 - 15 working days

This book summarizes the current state of knowledge regarding antibiotics and antibiotics resistance genes (ARGs) in the soil environment. It covers a wide range of topics to help readers understand antibiotics and ARGs in soils, the risks they pose for the environment, and options for effective control. In addition, it presents a range of essential tools and methodologies that can be used to address antibiotics and ARGs in a consistent, efficient, and cost-effective manner. Gathering contributions by international experts, the book addresses both theoretical aspects and practical applications.The topics discussed include antibiotics-producing microorganisms; the routes of entry and fate of antibiotics and resistance genes; biomonitoring approaches; dissemination of ARGs in soils; risk assessment; the impact of antibiotics and ARGs on the soil microbial community and other biota; bioremediation and biodegradation approaches; and soil management strategies for antibiotics and ARG-contaminated soils.As such, the book will be of interest to students, researchers and scholars in environmental science and engineering, toxicology, the medical and pharmaceutical sciences, environmental biotechnology, soil sciences, microbial ecology and plant biotechnology. Readers and Journals: 1. This new volume on antibiotics and antibiotics resistance genes (ARGs) in the soil environment will be of interest to students, researchers and scholars in environmental science and engineering, toxicology, the medical and pharmaceutical sciences, environmental biotechnology, soil sciences,microbial ecology and plant biotechnology. 2. The book will provide government authorities all over the world with effective strategies for the management of antibiotics and antibiotics resistance genes (ARG)- contaminated soil. 3. Gathering contributions by international experts,the book addresses both theoretical aspects and practical applications.

Geomorphic Approaches to Integrated Floodplain Management of Lowland Fluvial Systems in North America and Europe (Hardcover,... Geomorphic Approaches to Integrated Floodplain Management of Lowland Fluvial Systems in North America and Europe (Hardcover, 2015 ed.)
Paul F Hudson, Hans Middelkoop
R4,276 R3,475 Discovery Miles 34 750 Save R801 (19%) Ships in 10 - 15 working days

This volume provides a comprehensive perspective on geomorphic approaches to management of lowland alluvial rivers in North America and Europe. Many lowland rivers have been heavily managed for flood control and navigation for decades or centuries, resulting in engineered channels and embanked floodplains with substantially altered sediment loads and geomorphic processes. Over the past decade, floodplain management of many lowland rivers has taken on new importance because of concerns about the potential for global environmental change to alter floodplain processes, necessitating revised management strategies that minimize flood risk while enhancing environmental attributes of floodplains influenced by local embankments and upstream dams. Recognition of the failure of old perspectives on river management and the need to enhance environmental sustainability has stimulated a new approach to river management. The manner that river restoration and integrated management are implemented, however, requires a case study approach that takes into account the impact of historic human impacts to the system, especially engineering. The river basins examined in this volume provide a representative coverage of the drainage of North America and Europe, taking into account a range of climatic and physiographic provinces. They include the 1) Sacramento (California, USA), 2) San Joaquin (California), 3) Missouri (Missouri, USA), 4) Red (Manitoba, Canada and Minnesota, USA), 5) Mississippi (Louisiana, USA), 6) Kissimmee (Florida, USA), 7) Ebro (Spain), 8) Rhone (France), 9) Rhine (Netherlands), 10) Danube (Romania), and 11) Volga (Russian Federation) Rivers. The case studies covered in these chapters span a range of fluvial modes of adjustment, including sediment, channel, hydrologic regime, floodplains, as well as ecosystem and environmental associations.

Biosphere and Environmental Safety (Hardcover, 1st ed. 2019): V.I. Osipov Biosphere and Environmental Safety (Hardcover, 1st ed. 2019)
V.I. Osipov
R2,653 Discovery Miles 26 530 Ships in 18 - 22 working days

This book analyses the state of the natural environment and the causes of its degradation using the biosphere approach. Further, those issues that must be resolved immediately on the global level are identified following the ideas defined by V.I. Vernadsky, and new principles of Man-Nature interaction are pursued. The modern world currently faces three global trends inducing biosphere degradation and the aggravation of ecological hazards, namely: a) rapid and uncontrolled growth of human population on the Earth and insufficient natural resources to sustain it; (b) technogenesis development; and (c) global climate change and the aggravation of natural disasters. Ecological safety and military security are becoming the crucial conditions for the survival of modern civilization. To mitigate the ecological strain on the Earth, the technogenesis strategy should be changed and many other pressing issues must be resolved. These problems should be addressed using the biosphere approach, because the individual human being is the biosphere constituent, and his or her safety cannot be provided without maintaining the entire natural system on our planet.

Operational and Environmental Consequences of Large Industrial Cooling Water Systems (Hardcover, 2012): Sanjeevi Rajagopal,... Operational and Environmental Consequences of Large Industrial Cooling Water Systems (Hardcover, 2012)
Sanjeevi Rajagopal, Henk A. Jenner, Vayalam P. Venugopalan
R4,094 Discovery Miles 40 940 Ships in 18 - 22 working days

The use of water for industrial purposes is of foremost importance. It is used as a coolant and industrial activities dealing with power generation, steel and iron, paper and pulp and oil require very large amounts of water. The industry, therefore, resorts to large scale abstraction of water from natural water bodies. This water is often treated with chemicals to combat operational problems like biofouling and corrosion. Such withdrawal and subsequent discharge of large amounts of water have the potential to impart significant impact on the recipient water body. The organisms drawn along with the cooling water, as well as those residing at the discharge zone, are subjected to a combination of mechanical, thermal and chemical stress on a continuous basis.

Issues and Concerns in Water Management (Hardcover): Herbert Lotus Issues and Concerns in Water Management (Hardcover)
Herbert Lotus
R2,516 R2,294 Discovery Miles 22 940 Save R222 (9%) Ships in 18 - 22 working days
Water Conservation and Environmental Stability (Hardcover): Keith Wheatley Water Conservation and Environmental Stability (Hardcover)
Keith Wheatley
R3,056 R2,771 Discovery Miles 27 710 Save R285 (9%) Ships in 18 - 22 working days
ICoSI 2014 - Proceedings of the 2nd International Conference on Sustainable Innovation (Hardcover, 1st ed. 2017): T Taufik,... ICoSI 2014 - Proceedings of the 2nd International Conference on Sustainable Innovation (Hardcover, 1st ed. 2017)
T Taufik, Indira Prabasari, Innaka Ageng Rineksane, Rizal Yaya, Retno Widowati, …
R6,533 Discovery Miles 65 330 Ships in 10 - 15 working days

The 2nd International Conference on Sustainable Innovation emphasizes on natural resources technology and management to support the sustainability of mankind. The main theme of ICoSI 2014 "Technology and innovation challenges in natural resources and built environment management for humanity and sustainability " reflects the needs of immediate action from scientists with different fields and different geographical background to face the global issue on world's change.

Clean Energy from Waste - Fundamental Investigations on Ashes and Tar Behaviours in a Two Stage Fluid Bed-Plasma Process for... Clean Energy from Waste - Fundamental Investigations on Ashes and Tar Behaviours in a Two Stage Fluid Bed-Plasma Process for Waste Gasification (Hardcover, 1st ed. 2017)
Massimiliano Materazzi
R4,004 Discovery Miles 40 040 Ships in 10 - 15 working days

This book explores the use of recent advanced multiple stage conversion technologies. These applications combine conventional fluidised bed systems with new plasma technologies to efficiently generate different energy outputs from waste materials with minimum cleaning effort. Using a mix of modelling and experimental approaches, the author provides fundamental insights into how the key operating variables of the two-stage process may impact the final quality of syngas. This thesis serves as a useful reference guide on the modelling and design of single and multiple-stage systems for thermal waste treatment. Its extended section on plant configuration and operation of waste gasification plants identifies the main technical challenges, and is of use to researchers entering the field.

The Biogas Handbook - Science, Production and Applications (Hardcover, New): Arthur Wellinger, J.Patrick Murphy, David Baxter The Biogas Handbook - Science, Production and Applications (Hardcover, New)
Arthur Wellinger, J.Patrick Murphy, David Baxter
R5,119 R4,744 Discovery Miles 47 440 Save R375 (7%) Ships in 10 - 15 working days

With pressure increasing to utilise wastes and residues effectively and sustainably, the production of biogas represents one of the most important routes towards reaching national and international renewable energy targets. The biogas handbook: Science, production and applications provides a comprehensive and systematic guide to the development and deployment of biogas supply chains and technology.
Following a concise overview of biogas as an energy option, part one explores biomass resources and fundamental science and engineering of biogas production, including feedstock characterisation, storage and pre-treatment, and yield optimisation. Plant design, engineering, process optimisation and digestate utilisation are the focus of part two. Topics considered include the engineering and process control of biogas plants, methane emissions in biogas production, and biogas digestate quality, utilisation and land application. Finally, part three discusses international experience and best practice in biogas utilisation. Biogas cleaning and upgrading to biomethane, biomethane use as transport fuel and the generation of heat and power from biogas for stationery applications are all discussed. The book concludes with a review of market development and biomethane certification schemes.
With its distinguished editors and international team of expert contributors, The biogas handbook: Science, production and applications is a practical reference to biogas technology for process engineers, manufacturers, industrial chemists and biochemists, scientists, researchers and academics working in this field.
Provides a concise overview of biogas as an energy optionExplores biomass resources for productionExamines plant design and engineering and process optimisation

Nanocatalysts in Environmental Applications (Hardcover, 1st ed. 2018): Samira Bagheri, Nurhidayatullaili Muhd Julkapli Nanocatalysts in Environmental Applications (Hardcover, 1st ed. 2018)
Samira Bagheri, Nurhidayatullaili Muhd Julkapli
R2,653 Discovery Miles 26 530 Ships in 18 - 22 working days

This book presents a range of nanocatalysts, together with their primary environmental applications and use in chemical production processes. In addition, it describes the nanomaterials used for catalysts and details their performance. The book introduces readers to the fundamentals and applications of nanocatalysis, synthesis, characterization, modification and application. Further topics include: landfill organic pollutant photodegradation; magnetic photocatalysis; synergistic effects on hydrogenated TiO2; and photoinduced fusion of gold-semiconductor nanoparticles. A detailed explanation of the chemistry of nanostructures and the ability to control materials at the nano-scale rounds out the coverage. Given the central importance of research in nanotechnology and nanoscience for the development of new catalysts, the book offers a valuable source of information for researchers and academics alike. It will also benefit industrial engineers and production managers who wish to understand the environmental impact of nanocatalysts.

Pollutant Diseases, Remediation and Recycling (Hardcover, 2013 ed.): Eric Lichtfouse, Jan Schwarzbauer, Didier Robert Pollutant Diseases, Remediation and Recycling (Hardcover, 2013 ed.)
Eric Lichtfouse, Jan Schwarzbauer, Didier Robert
R4,125 Discovery Miles 41 250 Ships in 18 - 22 working days

Pollution has no borders. This popular 70's saying from early ecologists is surprisingly still true nowadays despite overwhelming scientific evidence and public awareness of the occurrence of artificial toxic substances in water, food, air, living organisms and the environment. This book presents advanced reviews on pollutant occurrence, transfer, toxicity and remediation. The chapter on school air quality by Dambruoso et al. highlights the overlooked health issue of airborne pollutants in buildings. Children are particularly threatened because they spend 90% of their time indoors, even in summer. The chapter on industrial wastewater pollutants by Dsikowitzky and Schwarzbauer reviews pollutants from textile, petrochemical, paper, tire, chemical and pharmaceutical plants. The authors describe advanced analytical methods and ecotoxicity tests. Industrial pollutants include dioxins and furans that are also reviewed in the chapter by Mudhoo et al. The chapter on fly ash by Gianoncelli et al. presents many techniques to treat fly ash and, in turn, decrease pollutant concentrations. The authors also explain that fly ash can be recycled in agriculture, buildings and geopolymers. The chapter on antifouling paints used for ship protection, by Sousa et al., highlights the occurrence of toxic organotins in human organs such as heart, liver and breast milk. The chapter on surfactants by Rebello et al. focuses on safety concerns for humans and the ecosystems. Remediation techniques and green surfactants are presented. The chapters on toxic metals by Nava-Ruiz and Mendez-Armenta, Abarikwu and Ristic et al. describe sources, monitoring and diseases induced by lead, mercury, cadmium and thallium. The chapter on carcinogenic nitrosamines by Li et al. presents techniques and materials such as zeolites to remediate liquids and smoke containing nitrosamines.

Waste Management in MENA Regions (Hardcover, 1st ed. 2020): Abdelazim M. Negm, Noama Shareef Waste Management in MENA Regions (Hardcover, 1st ed. 2020)
Abdelazim M. Negm, Noama Shareef
R2,717 Discovery Miles 27 170 Ships in 18 - 22 working days

The book presents the state-of-the-art document describing the knowledge, data, cost-effectiveness and technologies employed to manage the waste in several countries such as Morocco, Tunisia, Egypt, Jordon, Syria, Palestine, Lebanon, and Yemen. It covers diverse topics including the status of the waste in the region, solid waste management, solid waste recovery and disposal, the use of the agricultural waste in feeding poultry, sludge disposal and management, wastewater treatment and energy production. Also, the book explains how waste management systems are becoming more complex in many countries with the move from landfill-based to resource recovery-based solutions following the setting of international and national targets to divert waste from landfill and to increase recycling and recovery rates. Besides, this book also evaluates the environmental legislation in the selected countries and suggests new performance enhancements. This book is of interest to environmental professionals including scientists and policymakers in the Middle East, North Africa, and areas with similar features.

Effects of Insurance on Maritime Liability Law - A Legal and Economic Analysis (Hardcover, 2014): Muhammad Masum Billah Effects of Insurance on Maritime Liability Law - A Legal and Economic Analysis (Hardcover, 2014)
Muhammad Masum Billah
R5,259 Discovery Miles 52 590 Ships in 10 - 15 working days

The book examines how the absence of insurance in the past led to some special maritime liability law principles such as 'general average' (i.e., losses or expenses shared by all the parties to a maritime adventure) and the limitation of shipowners' liability. In the absence of insurance, these principles served the function of insurance mostly for shipowners. As commercial marine insurance is now widely available, these principles have lost their justification and may in fact interfere with the most important goal of liability law i.e., deterrence from negligence. The work thus recommends their abolition. It further argues that when insurance is easily available and affordable to the both parties to a liability claim, the main goal of liability law should be deterrence as opposed to compensation. This is exactly the case with the maritime cargo liability claims where both cargo owners and shipowners are invariably insured. As a result, the sole focus of cargo liability law should be and to a great extent, is deterrence. On the other hand in the vessel-source oil pollution liability setting, pollution victims are not usually insured. Therefore oil pollution liability law has to cater both for compensation and deterrence, the two traditional goals of liability law. The final question the work addresses is whether the deterrent effect of liability law is affected by the availability of liability insurance. Contrary to the popular belief the work attempts to prove that the presence of liability insurance is not necessarily a hindrance but can be a complementary force towards the realization of deterrent goal of liability law.

Basic and Applied Zooplankton Biology (Hardcover, 1st ed. 2019): Perumal Santhanam, Ajima Begum, Perumal Pachiappan Basic and Applied Zooplankton Biology (Hardcover, 1st ed. 2019)
Perumal Santhanam, Ajima Begum, Perumal Pachiappan
R3,471 Discovery Miles 34 710 Ships in 10 - 15 working days

The coastal and ocean ecosystem is a significant feature of our planet and provides a source of food for much of life on Earth. Millions of species have been, and are still being discovered in the world's oceans. Among these zooplankton serve as secondary producers and are significant as they form pelagic food links and act as indicators of water masses. They constitute the largest and most reliable source of protein for most of the ocean's fishes. As such, their absence or depletion often affects fishery. In many countries, the decline in fishery has been attributed to reduced plankton populations. Furthermore, trillions of tiny copepods produce countless faecal pellets contributing greatly to the marine snow and therefore accelerating the flow of nutrients and minerals from the surface waters to the seabed. They are phylogenetically highly successful groups in terms of phylogenetic age, number of living species and success of adaptive radiation. A study of the basic and applied aspects of zooplankton would provide an index of the fishery potential and applications, offering insights into ocean ecology to safeguard food supplies and livelihoods of the millions of people living in coastal areas. For this reason, we need to understand all the facets of zooplankton as well as their interactions with atmosphere and other life forms, including human. In this context, this book discusses the basic and applied aspects of zooplankton, especially taxonomy, mosquitocidal activity, culture, analysis of nutritional, pigments and enzyme profile, preservation of copepods eggs, bioenrichment of zooplankton and application of zooplankton in sustainable aquaculture production, focusing on novel biofloc-copefloc technologies, and the impact of acidification and microplastics on zooplankton. Offering a comprehensive overview of the current issues and developments in the field of environmental and commercial applications, this book is a valuable resource for researchers, aquaculturists, environmental mangers wanting to understand the importance of zooplankton and develop technologies for the sustainable production of fish and other commodities to provide food and livelihoods for mankind.

Capacity Building for the Planning, Assessment and Systematic Observations of Forests - With Special Reference to Tropical... Capacity Building for the Planning, Assessment and Systematic Observations of Forests - With Special Reference to Tropical Countries (Hardcover, 2013 ed.)
Karan Deo Singh
R4,151 R3,350 Discovery Miles 33 500 Save R801 (19%) Ships in 10 - 15 working days

This book is intended to support the forestry institutions in the tropical countries in the planning, assessment and systematic observation of forests required to fulfill their obligations as laid in international conventions such as the CBD and UNFCCC. Following the Rio Conference, a number of countries, donors and international organizations have implemented capacity-building projects with varying degrees of success. One main reason for the varying success rates seems to lie in the design of technical assistance programs, which have been formulated on the traditional lines of mainly generating forest resources information or transferring technology; whereas Agenda 21 requires fundamental changes in countries' institutions and approaches to planning and implementing the conservation and sustainable development of forests through a process of continuing research and analysis. The book is intended to serve the basic needs of national planning strategies and international and donor support.

Groundwater Engineering (Hardcover, 2nd ed. 2017): Yiqun Tang, Jie Zhou, Ping Yang, Jingjing YAN, Nianqing Zhou Groundwater Engineering (Hardcover, 2nd ed. 2017)
Yiqun Tang, Jie Zhou, Ping Yang, Jingjing YAN, Nianqing Zhou
R4,825 Discovery Miles 48 250 Ships in 10 - 15 working days

Integrating information from several areas of engineering geology, hydrogeology, geotechnical engineering, this book addresses the general field of groundwater from an engineering perspective. It covers geological engineering as well as hydrogeological and environmental geological problems caused by groundwater engineering. It includes 10 chapters, i.e., basic groundwater theory, parameter calculation in hydrogeology, prevention of geological problem caused by groundwater, construction dewatering, wellpoint dewatering methods, dewatering wells and drilling, groundwater dewatering in foundation-pit engineering, groundwater engineering in bedrock areas, numerical simulation in groundwater engineering, groundwater corrosion on concrete and steel. Based on up-to-date literature, it describes recent developments and presents several case studies with examples and problems. It is an essential reference source for industrial and academic researchers working in the groundwater field and can also serve as lecture-based course material providing fundamental information and practical tools for both senior undergraduate and postgraduate students in fields of geology engineering, hydrogeology, geotechnical engineering or to conduct related research.

Geological CO2 Storage Characterization - The Key to Deploying Clean Fossil Energy Technology (Hardcover, 2013 ed.): Ronald C.... Geological CO2 Storage Characterization - The Key to Deploying Clean Fossil Energy Technology (Hardcover, 2013 ed.)
Ronald C. Surdam
R5,036 Discovery Miles 50 360 Ships in 10 - 15 working days

This book investigates geological CO2 storage and its role in greenhouse gas emissions reduction, enhanced oil recovery, and environmentally responsible use of fossil fuels. Written for energy/environmental regulators at every level of government (federal, state, etc.), scientists/academics, representatives from the power and fossil energy sectors, NGOs, and other interested parties, this book uses the characterization of the Rock Springs Uplift site in Wyoming as an integrated case study to illustrate the application of geological CO2 storage science, principles, and theory in a real-world scenario.

New Ecoinformatics Tools in Environmental Science - Applications and Decision-making (Hardcover): Vladimir F. Krapivin, Costas... New Ecoinformatics Tools in Environmental Science - Applications and Decision-making (Hardcover)
Vladimir F. Krapivin, Costas A. Varotsos, Vladimir Yu. Soldatov
R4,292 Discovery Miles 42 920 Ships in 18 - 22 working days

This book provides new insights on the study of global environmental changes using the ecoinformatics tools and the adaptive-evolutionary technology of geoinformation monitoring. The main advantage of this book is that it gathers and presents extensive interdisciplinary expertise in the parameterization of global biogeochemical cycles and other environmental processes in the context of globalization and sustainable development. In this regard, the crucial global problems concerning the dynamics of the nature-society system are considered and the key problems of ensuring the system's sustainable development are studied. A new approach to the numerical modeling of the nature-society system is proposed and results are provided on modeling the dynamics of the system's characteristics with regard to scenarios of anthropogenic impacts on biogeochemical cycles, land ecosystems and oceans. The main purpose of this book is to develop a universal guide to information-modeling technologies for assessing the function of environmental subsystems under various climatic and anthropogenic conditions.

Environmental Information Systems - Concepts, Methodologies, Tools, and Applications, VOL 2 (Hardcover): Information Reso... Environmental Information Systems - Concepts, Methodologies, Tools, and Applications, VOL 2 (Hardcover)
Information Reso Management Association
R8,467 Discovery Miles 84 670 Ships in 18 - 22 working days
Application of Threshold Concepts in Natural Resource Decision Making (Hardcover, 2014 ed.): Glenn R. Guntenspergen Application of Threshold Concepts in Natural Resource Decision Making (Hardcover, 2014 ed.)
Glenn R. Guntenspergen
R4,049 Discovery Miles 40 490 Ships in 18 - 22 working days

Natural resource managers face a complex decision-making environment characterized by the potential occurrence of rapid and abrupt ecological change. These abrupt changes are poorly accommodated by traditional natural resource planning and decision-making processes. As recognition of threshold processes has increased, contemporary models of ecological systems have been modified to better represent a broader range of ecological system dynamics. Key conceptual advances associated with the ideas of non-linear responses, the existence of multiple ecological stable states and critical thresholds are more likely the rule than the exception in ecological systems. Once an ecological threshold is crossed, the ecosystem in question is not likely to return to its previous state. There are many examples and a general consensus that climatic disruptions will drive now stable systems across ecological thresholds. This book provides professional resource managers with a broad general decision framework that illustrates the utility of including ecological threshold concepts in natural resource management. It gives an entry into the literature in this rapidly evolving concept, with descriptions and discussion of the promising statistical approaches for threshold detection and demonstrations of the utility of the threshold framework via a series of case studies.

Hydrocarbon (Hardcover): Vladimir Kutcherov, Anton Kolesnikov Hydrocarbon (Hardcover)
Vladimir Kutcherov, Anton Kolesnikov
R3,105 Discovery Miles 31 050 Ships in 18 - 22 working days
Clean Energy Systems and Experiences (Hardcover): Kei Eguchi Clean Energy Systems and Experiences (Hardcover)
Kei Eguchi
R3,096 Discovery Miles 30 960 Ships in 18 - 22 working days
Geobiotechnological Solutions to Anthropogenic Disturbances - A Caribbean Perspective (Hardcover, 1st ed. 2016): Mark Anglin... Geobiotechnological Solutions to Anthropogenic Disturbances - A Caribbean Perspective (Hardcover, 1st ed. 2016)
Mark Anglin Harris
R3,570 Discovery Miles 35 700 Ships in 10 - 15 working days

This book offers a problem-and-solution approach to environmental remediation in mining, including the environmentally sustainable utilization of waste materials from the mining industry. It largely comprises articles published in Springer journals, which have been thoroughly revised and expanded. With supplementary data and illustrations, it discusses specific problem areas in relevant Caribbean locations and provides an overview of geotechnical and microbial solutions to prevent post-mining deterioration in this area.

Factors Affecting the Removal of Ammonia from Air on Carbonaceous Materials - Investigation of Reactive Adsorption Mechanism... Factors Affecting the Removal of Ammonia from Air on Carbonaceous Materials - Investigation of Reactive Adsorption Mechanism (Hardcover, 2012 ed.)
Camille Petit
R2,638 Discovery Miles 26 380 Ships in 18 - 22 working days

Air pollution related to the release of industrial toxic gases, represents one of the main
concerns of our modern world owing to its detrimental effect on the environment. To tackle this growing issue, efficient ways to reduce/control the release of pollutants are required. Adsorption of gases on porous materials appears as a potential solution. However, the physisorption of small molecules of gases such as ammonia is limited at ambient conditions. For their removal, adsorbents providing strong adsorption forces must be used/developed.
In this study, new carbon-based materials are prepared and tested for ammonia adsorption at ambient conditions. Characterization of the adsorbents texture and surface chemistry is performed before and after exposure to ammonia to identify the features responsible for high adsorption capacity and for controlling the mechanisms of retention. The characterization techniques include: nitrogen adsorption, thermal analysis, potentiometric titration, FT-IR spectroscopy, X-ray diffraction, Energy Dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy and Electron Microscopy. The results obtained indicate that ammonia removal is governed by the adsorbent s surface chemistry. On the contrary, porosity (and thus physisorption) plays a secondary role in this process, unless strong dispersive forces are provided by the adsorbent. The surface chemistry features responsible for the enhanced ammonia adsorption include the presence of oxygen-(carboxyl, hydroxyl, epoxy) and sulfur- (sulfonic) containing groups. Metallic species improve the breakthrough capacity as well as they lead to the formation of Lewis acid-base interactions, hydrogen-bonding or complexation. In addition to the latter three mechanisms, ammonia is retained on the adsorbent surface via Bronsted acid-base interactions or via specific reactions with the adsorbent s functionalities leading to the incorporation of ammonia into the adsorbent s matrix. Another mechanism involves dissolution of ammonia in water when moisture is present in the system. Even though this process increases the breakthrough capacity of a material, it provides rather weak retention forces since ammonia dissolved in water is easily desorbed from the adsorbent s surface."

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