الصفحة 1
الصفحة 1
Mid-Infrared Coherent Sources and Applications
Coherent sources of mid-infrared (mid-IR) radiation are of great interest for a wide range of scienti?c and technological applications from spectroscopy and frequency metrology to information technology, industrial process control, pho- chemistry, photobiology and photomedicine. The mid-IR spectrum, which may be de?ned as wavelengths beyond ?2µm, covers important atmospheric windows, and numerous molecular gases, toxic agents, air, water, and soil pollutants, c- ponents of human breath, and several explosive agents have strong absorption ?ngerprints in this region. The development of practical coherent solid-state sources in the mid-IR can thus provide indispensable tools for a variety of - plications in environmental monitoring and pollution control, detection of water and soil contaminants, food quality control, agriculture and life sciences, and n- invasive disease diagnosis and therapy through breath analysis.
Microgravity Two-phase Flow and Heat Transfer
Multiphase thermal systems (involving more than one phase or one component) have numerous applications in aerospace, heat-exchanger, transport of contaminants in environmental systems, and energy transport and energy conversion systems. Advances in understanding the behaviour of multiphase thermal systems could lead to higher efficiency energy production systems, improved heat-exchanger design, and safer and enhanced treatment of hazardous waste. But such advances have been greatly hindered by the strong effect of gravitational acceleration on the flow. Depending on the flow orientation and the phase velocities, gravitational forces could significantly alter the flow regime, and hence the pressure-drop and heat-transfer coefficients associated with the flow. A reduced gravity environment (or "microgravity"), provides an excellent tool to study the flow without the masking effects of gravity. This book presents for the first time a comprehensive coverage of all aspects of two-phase flow behaviour in the virtual absence of gravity.
Integrated Cytology of Cerebrospinal Fluid
Integrated Cytology of Cerebrospinal Fluid is a practical guide to this method used in the diagnosis of different pathologies. High-quality slides depict the common cerebrospinal fluid cell types, cell anomalies in inflammatory conditions and neoplastic and non-neoplastic disorders, and cases with contaminants.
Highway and Urban Environment ; Proceedings of the 8th Highway and Urban Environment Symposium
This book about Proceedings of the 8th Highway and Urban Environment Symposium (8HUES) was held on 12–14 June 2006 in Nicosia, Cyprus. The initial aim was to measure and assess challenges in highway pollution. These challenges particularly - cluded urban photochemical smog, with an emphasis on ozone formation and particle release. The first symposium was titled “Highway Pollution” and had a clear aim to make a difference. The proceedings were published in an interdisciplinary journal.
Habitats and Biota of the Gulf of Mexico : Before the deepwater horizon oil spill ; Vol.1 : Water quality, sediments, sediment contaminants, oil and gas Seeps, coastal habitats, offshore plankton and benthos, and shellfish
The Gulf of Mexico is an open and dynamic marine ecosystem rich in natural resources but heavily impacted by human activities, including agricultural, industrial, commercial and coastal development. Nutrients and pollutants from coastal communities and dozens of rivers flow into the Gulf, including material from the Mississippi River watershed, which drains over one third of continental United States. The Gulf of Mexico has been continuously exposed to petroleum hydrocarbons for millions of years from natural oil and gas seeps on the sea floor, and more recently from oil drilling and production activities located in the water near and far from shore. Major accidental oil spills in the Gulf are infrequent; two of the most significant include the Ixtoc I blowout in the Bay of Campeche in 1979 and the Deepwater Horizon Oil Spill in 2010.
Groundwater Management in Asian Cities : Technology and Policy for Sustainability
The number of city dwellers who do not have access to piped water and rely on groundwater is also increasing. In many Asian cities, groundwater is not only the source of domestic water but also an important resource for industrial development, making better management of groundwater resources essential for sustainable development. Because groundwater is easier to access and costs less than water from piped systems, groundwater abstraction cannot be easily regulated. Policies for groundwater management adopted in Japan and other Asian countries are compared, and technologies for efficient use of groundwater are elucidated. Groundwater contamination is also a serious problem that exacerbates water scarcity in Asian cities. Case studies illustrate the cause and consequences of naturally occurring contaminants such as arsenic and fluoride, and groundwater contamination due to anthropogenic contaminants is described. Also discussed are technologies for treating contaminated groundwater to reduce the health risks of drinking contaminated groundwater.
Gas Transport in Porous Media
This book presents a compilation of state-of-the art studies on gas and vapor transport processes in porous and fractured media. A broad set of models and processes is presented, including advection/diffusion, the Dusty Gas Model, enhanced vapor diffusion, phase change, coupled processes, solid/vapor sorption, and vapor-pressure lowering. Numerous applications are also presented that illustrate these processes and models in current problems facing the scientific community.
Freshwater Microplastics : Emerging Environmental Contaminants?
Focuses on microscopic plastic debris, also referred to as microplastics, which have been detected in aquatic environments around the globe and have accordingly raised serious concerns. The book explores whether microplastics represent emerging contaminants in freshwater systems, an area that remains underrepresented to date.Given the complexity of the issue, the book covers the current state-of-research on microplastics in rivers and lakes, including analytical aspects, environmental concentrations and sources, modelling approaches, interactions with biota, and ecological implications. To provide a broader perspective, the book also discusses lessons learned from nanomaterials and the implications of plastic debris for regulation, politics, economy, and society. In a research field that is rapidly evolving, it offers a solid overview for environmental chemists, engineers, and toxicologists, as well as water managers and policy-makers.
Food Safety and Ways to Prevent Life-Threatening Pollutants
The fears regarding food safety started long time ago, and till this very moment of ours, the international organizations and INGOs pay lots of hard work to minimize and achieve reduction in the effects and the suffering caused to people around the world by contaminated foods each year. This research talks about the main patterns of food contaminants, and they are chemical, physical, biological, and last but not least the contamination caused by radioactive substances. It is also important to talk about the methods of precaution and protection against the diseases and illnesses produced by contaminated foods, as well about the role of INGOs which are dedicated and specialized in law and regulations enactment for bounding the incidence of food contamination in the world, for raising the public awareness towards food safety, and to keep up with the latest updates of events. This research also contains vast Information about Covid-19 and its spreading process via contaminated food.
Food safety and toxicology : Present and future perspectives
Safety assurance of consumer goods has become a global challenge. The presence of natural and synthetic contaminants in food compromises food safety and poses a risk to public health. Discusses biological and chemical food contaminants, predictive and detection methods of food toxicants, survival mechanism of food pathogens, legislation on microbial contaminants to prevent public health risks and strategies to mitigate contamination.
Farmacognosia applicata : Controllo di qualità delle droghe vegetali
Il processo di identificazione è per una droga vegetale di enorme importanza ai fini dell'efficacia e sicurezza della stessa. Infatti la risposta terapeutica e gli effetti indesiderati sono fortemente condizionati dall'identificazione della droga e dalla presenza di contaminanti botanici. Il testo si compone di due parti; la prima sintetizza gli aspetti diagnostici che indirizzano verso il riconoscimento della droga vegetale, mentre la seconda descrive gli aspetti macro- e microscopici della droga ed i saggi chimici e farmacologici che consentono con certezza l’identificazione della stessa. Infine, l’ultima parte riporta alcuni esempi di cromatogrammi e di tracciati di organi isolati.
Experimental Unsaturated Soil Mechanics
These proceedings are a continuation of the series of International Conferences in Germany entitled "Mechanics of Unsaturated Soils." The primary objective is to discuss and understand unsaturated soil behaviour such that engineered activities are made better with times in terms of judgement and quality. We all realise by now that in addition to the knowledge on the classical concepts, it becomes an enormous challenging task to adapt convincing new concepts and present them in such a way that it could be used in engineering practices. The experimental studies reported primarily focus on the role of microstructure and fabric for the complex coupled hydro-mechanical behaviour of cohesive frictional materials. Several papers consider the relevance of temperature affecting the constitutive behaviour of clays. Common features of state of the art theoretical and numerical approaches, including theory of porous media and mixture theory, intend to describe the complex multi-field problems of fully coupled thermo-hydraulic-mechanical-chemical initial - boundary value problems.
Environmental Technology in the Oil Industry
This significantly updated edition looks at each stage in the life cycle of petroleum products, from exploration to end use, examining the environmental pressures on the Oil Industry and its response. The Oil Industry produces a range of products without which modern civilization could not exist. Nevertheless, in today’s environmentally conscious world, society demands that the industry manufactures and markets the products without unduly polluting the environment. Its ability and willingness to comply determines whether society will allow it a licence to operate. Technical developments are progressing in line with environmental concerns and increasing sophistication of computer modelling techniques. These subjects are inter-related, but have often been dealt with independently.
Environmental Risk Assessment : Quantitative Measures, Anthropogenic Influences, Human Impact
The world is a dirty place and getting dirtier all the time. The reasons for this ever-increasing lack of cleanliness are not hard to find, being basically caused by the actions of the six billion people who inhabit the planet. The needs of the people for air, water, food, housing, clothing, heating, materials, oil, gas, minerals, metals, chemicals, and so forth have, over the centuries, given rise to a variety of environmental problems that have been exacerbated or been newly created by the industrialization of the world, the increase in population, and the increase in longevity of the population. The costs of cleaning even fractions of the known environmental problems are truly enormous, as detailed in the volume Environmental Risk Analysis (I. Lerche and E. Paleologos, 2001, McGraw-Hill). The chances of causing new environmental problems, and their associated costs of clean up, are equally challenging in terms of anthropogenic influences and also of the natural environmental problems that can be triggered by humanity.
Environmental Photochemistry ; Part II
Photochemical reactions play a major role in the environment including a wide range of reactions in the atmosphere, natural waters, soil and living organisms. This new volume on Environmental Photochemistry up-dates the previous edition with chapters on basic aspects including concepts of photochemical transformations and mechanistic photochemical processes in the atmosphere and water. In addition a range of applications are also detailed such as advanced photochemical oxidation processes for water and air treatment as well as applications of photocatalysis for surface treatment and nuclear fuel reprocessing. The new edition provides a critical up to date overview of the most important research in the field of environmental photochemistry.
Environmental Impact Assessment of Recycled Wastes on Surface and Ground Waters ; Vol.1 : Concepts, methodology and cemical analysis
The state of the art of the impact assessment of recycled hazardous waste materials on surface and ground waters is presented. The topics include chemodynamics, toxicology, modeling and information systems. Due to the wealth of information on this topic, the texts of T. Kassim (ed.): Environmental Impact Assessment are published in three separate volumes: vol. 1: Concepts, Methodology and Chemical Analysis; vol. 2: Risk Analysis and vol. 3: Engineering Modeling and Sustainability. The book serves as a practical conceptual guide for those who have professional responsibility for the monitoring, design, management, or conduct of environmental impact assessment. It is believed that the book will prove useful to the reader who, regardless of disciplinary background, wants to examine in greater detail the kinds of interdisciplinary contributions to contemporary decision-making processes that characterize modern impact assessment project development.
Environmental Bioremediation Technologies
Environmental contamination from both natural and anthropogenic sources is, today, a major environmental concern due to pervasiveness and persistence of many toxicants. It is considered as an inevitable evil of our progress and modernization. To decontaminate the soils, sediments and waters, polluted by anthropogenic activities, the scientists and technologists have evolved different technologies over the years. Although we have to pay high cost for physical and chemical environmental technologies, but they are not eco-friendly and safe. Hence, it was deeply realized to develop viable technologies employing microbes and plants to remediate not only metallic residues and radionuclides, but also the xenobiotic compounds like PCBs, PAHs, PCPs, petroleum sludge and the military wastes. No doubt, the scientists have also got some success in this endeavour and as the result, many companies are in place today to promote the sale of plant or microbe-based technologies to deal with specific environmental contamination challenges. Besides, these technologies are se- driven and do not disturb the sites in cleaning process.
Emerging Organic Pollutants in Waste Waters and Sludge
Over the past fifteen years regulatory agencies have relied on their approaches to characterise and control the release of toxic substances into the aquatic environment: a GC/MS analysis for U.S. EPA designated 126 priority pollutants and 132 dangerous substances according to the European 76/464/CEE Directive and on the bioassays with aquatic bioorganisms. "Emerging Contaminants" correspond in most cases to irregulated contaminants, e.g. surfactants, pharmaceuticals and personal care products (PPCP), or gasoline additives. These two volumes, 5/I and 5/O, of this Handbook deal with the analytical, toxicological and environmental issues of these toxicants. Based on results of up-to-date research they give the reader a balanced view on this rapidly developing and complex subject.
Emerging Contaminants from Industrial and Municipal Waste : Removal Technologies
This book focuses on innovative treatment technologies for the elimination of emerging contaminants from wastewater and drinking water. The respective treatment processes, such as membrane bioreactors, photocatalysis, ozonation and advanced oxidation are dealt with in detail. The book also discusses sources and occurrence of emerging contaminants in municipal and industrial waste, giving a concise and critical overview of state-of-the-art analytical methods for their identification. Further important aspects covered by the book include the acute and chronic effects and overall impact of emerging contaminants on the environment.
Emerging Contaminants from Industrial and Municipal Waste : Occurrence, Analysis and Effects
This book focuses on innovative treatment technologies for the elimination of emerging contaminants from wastewater and drinking water. The respective treatment processes, such as membrane bioreactors, photocatalysis, ozonation and advanced oxidation are dealt with in detail. The book also discusses sources and occurrence of emerging contaminants in municipal and industrial waste, giving a concise and critical overview of state-of-the-art analytical methods for their identification. Further important aspects covered by the book include the acute and chronic effects and overall impact of emerging contaminants on the environment.
