Use of Surface Active Quaternary Ammonium Compounds for Water Disinfection PDF Download

Author: George G. Perry III
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Carl A. Lawrence
Publisher: Academic Press
ISBN: 1483267687
Category : Medical
Languages : en
Pages : 255

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Book Description
Surface-Active Quaternary Ammonium Germicides accumulates in the pages of one volume a review of the history, chemistry, biology, and application of the quaternary ammonium salts that have appeared in print to date. The quaternary ammonium surface-active antiseptics have secured a prominent and important place in the fields of medicinal and general disinfection during the past decade. These compounds are of particular interest in that, unlike most other disinfectants, they exhibit not only germicidal action but also surface-active, detergent, and wetting properties.

Author: Patricia L. Keen
Publisher: John Wiley & Sons
ISBN: 0470905425
Category : Science
Languages : en
Pages : 634

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Book Description
Examines effects of the environmental distribution of antimicrobial resistance genes on human health and the ecosystem Resistance genes are everywhere in nature—in pathogens, commensals, and environmental microorganisms. This contributed work shows how the environment plays a pivotal role in the development of antimicrobial resistance traits in bacteria and the distribution of resistant microbial species, resistant genetic material, and antibiotic compounds. Readers will discover the impact of the distribution in the environment of antimicrobial resistance genes and antibiotics on both the ecosystem and human and animal health. Antimicrobial Resistance in the Environment is divided into four parts: Part I, Sources, including ecological and clinical consequences of antibiotic resistance by environmental microbes Part II, Fate, including strategies to assess and minimize the biological risk of antibiotic resistance in the environment Part III, Antimicrobial Substances and Resistance, including antibiotics in the aquatic environment Part IV, Effects and Risks, including the effect of antimicrobials used for non-human purposes on human health Recognizing the intricate links among overlapping complex systems, this book examines antimicrobial resistance using a comprehensive ecosystem approach. Moreover, the book's multidisciplinary framework applies principles of microbiology, environmental toxicology, and chemistry to assess the human and ecological risks associated with exposure to antibiotics or antibiotic resistance genes that are environmental contaminants. Each chapter has been written by one or more leading researchers in such fields as microbiology, environmental science, ecology, and toxicology. Comprehensive reference lists at the end of all chapters serve as a gateway to the primary research in the field. Presenting and analyzing the latest findings in a field of growing importance to human and environmental health, this text offers readers new insights into the role of the environment in antimicrobial resistance development, the dissemination of antimicrobial resistant genetic elements, and the transport of antibiotic resistance genes and antibiotics.

Author: N.T. de Oude
Publisher: Springer
ISBN: 3540471081
Category : Technology & Engineering
Languages : en
Pages : 414

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Book Description
Environmental Chemistry is a relatively young science. Interest in this subject, however, is growing very rapidly and, although no agreement has been reached as yet about the exact content and limits of this interdisciplinary subject, there appears to be increasing interest in seeing environmental topics which are based on chemistry embodied in this subject. One of the first objectives of Environ mental Chemistry must be the study of the environment and of natural chemical processes which occur in the environment. A major purpose of this series on Environmental Chemistry, therefore, is to present a reasonably uniform view of various aspects of the chemistry of the environment and chemical reactions occuring in the environment. The industrial activities of man have given a new dimension to Environ mental Chemistry. We have now synthesized and described over five million chemical compounds and chemical industry produces about one hundred and fifty million tons of synthetic chemicals annually. We ship billions of tons of oil per year and through mining operations and other geophysical modifications, large quantities of inorganic and organic materials are released from their natural deposits. Cities and metropolitan areas of up to 15 million inhabitants produce large quantities ofwaste in relatively small and confined areas. Much of the chemical products and was te products of modern society are released into the environment either during production, storage, transport, use or ultimate disposal. These released materials participate in natural cycles and reactions and frequently lead to interference and disturbance of natural systems.

Author: Karthikeyan Subramani
Publisher: Elsevier
ISBN: 0128158875
Category : Technology & Engineering
Languages : en
Pages : 692

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Book Description
Nanobiomaterials in Clinical Dentistry, Second Edition shows how a variety of nanomaterials are being used to solve problems in clinical dentistry. New nanomaterials are leading to a range of emerging dental treatments that utilize more biomimetic materials that more closely duplicate natural tooth structure (or bone, in the case of implants). The book's chapters discuss the advantages and challenges of using nanomaterials and include case studies to illustrate how a variety of materials are best used in research and practice. Contains information from an interdisciplinary, international group of scientists and practitioners in the fields of nanomaterials, dental implants, medical devices and clinical practice Presents a comprehensive reference on the subject that covers material fabrication and the use of materials for all major diagnostic and therapeutic dental applications--repair, restoration, regeneration, implants and prevention Complements the editors' previous book on nanotechnology applications for dentistry

Author: Lin Ye
Publisher: Trans Tech Publications Ltd
ISBN: 3035703655
Category : Technology & Engineering
Languages : en
Pages : 240

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Book Description
Volume is indexed by Thomson Reuters CPCI-S (WoS). In recent years significant progress has been made in many areas of polymer blend and polymer matrix composite science and technology. This volume comprises a selection of refereed papers which cover the state-of-the-art, and predict future trends in polymer blend and composite research; including established, as well as innovative, applications and new directions for these novel materials.

Author: Jane E. Sykes
Publisher: Elsevier Health Sciences
ISBN: 0323241948
Category : Medical
Languages : en
Pages : 928

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Book Description
Canine and Feline Infectious Diseases is a practical, up-to-date resource covering the most important and cutting-edge advances in the field. Presented by a seasoned educator in a concise, highly visual format, this innovative guide keeps you current with the latest advances in this ever-changing field. 80 case studies illustrate the clinical relevance of the major infectious disease chapters. Well-organized Major Infectious Diseases chapters break down content by etiologic agent and epidemiology, clinical signs and their pathophysiology, physical examination findings, diagnosis, treatment and prognosis, immunity, prevention, and public health implications. Over 80 case studies illustrate how the information provided can be applied in everyday practice. Logical approach to laboratory diagnosis guides you through all the steps needed to accurately diagnose and treat viral, bacterial, fungal, protozoal, and algal diseases. Practical protocols provided by expert clinicians guide you in the management of canine and feline patients suspected to have infectious diseases, including handling, disinfection, isolation, and vaccination protocols. Over 500 full color images – geographic distribution maps, life cycle drawings, and hundreds of color photographs – visually illustrate and clarify complex issues. Easy-to-understand tables and boxes make content quickly accessible, eliminating the need to sort through dense text for critical information in the clinical setting.

Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
ISBN: 030949382X
Category : Medical
Languages : en
Pages : 291

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Book Description
Legionnaires' disease, a pneumonia caused by the Legionella bacterium, is the leading cause of reported waterborne disease outbreaks in the United States. Legionella occur naturally in water from many different environmental sources, but grow rapidly in the warm, stagnant conditions that can be found in engineered water systems such as cooling towers, building plumbing, and hot tubs. Humans are primarily exposed to Legionella through inhalation of contaminated aerosols into the respiratory system. Legionnaires' disease can be fatal, with between 3 and 33 percent of Legionella infections leading to death, and studies show the incidence of Legionnaires' disease in the United States increased five-fold from 2000 to 2017. Management of Legionella in Water Systems reviews the state of science on Legionella contamination of water systems, specifically the ecology and diagnosis. This report explores the process of transmission via water systems, quantification, prevention and control, and policy and training issues that affect the incidence of Legionnaires' disease. It also analyzes existing knowledge gaps and recommends research priorities moving forward.

Author: Ingegard Johansson
Publisher: Elsevier
ISBN: 0080555535
Category : Science
Languages : en
Pages : 994

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The focus of Handbook for Cleaning/Decontamination of Surfaces lies on cleaning and decontamination of surfaces and solid matter, hard as well as soft. Bringing together in a 2-volume reference source: - current knowledge of the physico-chemical fundamentals underlying the cleaning process; - the different needs for cleaning and how these needs are met by various types of cleaning processes and cleaning agents, including novel approaches; - how to test that cleaning has taken place and to what extent; - the effects of cleaning on the environment; - future trends in cleaning and decontamination, for example the idea of changing surfaces, to hinder the absorbance of dirt and thus make cleaning easier. A brief introduction is given to the legal demands concerning the environment and a historical background, in terms of development of detergents, from soaps to the modern sophisticated formulations. Bactericides, their use and the environmental demands on them are covered. Thorough discussions of mechanisms for cleaning are given in several chapters, both general basic concepts and special cases like particle cleaning and cleaning using microemulsion concepts. * General understanding of how cleaning works, function of ingredients and formulations * Overview of environmental issues and demands from the society in the area * Gives basic formulas for cleaning preparations in most areas

Author: Karthikeyan Subramani
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 0

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New nanomaterials are leading to a range of emerging dental treatments that utilize more biomimetic materials that more closely duplicate natural tooth structure (or bone, in the case of implants). The use of nanostructures that will work in harmony with the body's own regenerative processes (eg, to restore tooth structure or alveolar bone) are moving into clinical practice. This book brings together an international team of experts from the fields of nanomaterials, biomedical engineering and dentistry, to cover the new materials and techniques with potential for use intra-orally or extra-orally for the restoration, fixation, replacement, or regeneration of hard and soft tissues in and about the oral cavity and craniofacial region. New dental nanotechnologies include the use of advanced inorganic and organic materials, smart and biomimetic materials, tissue engineering and drug delivery strategies. Book prepared by an interdisciplinary and international group of bio-nanomaterial scientists and dental/oral biomedical researchers Comprehensive professional reference for the subject covering materials fabrication and use of materials for all major diagnostic and therapeutic dental applications - repair, restoration, regeneration, implants and prevention Book focuses in depth on the materials manufacturing processes involved with emphasis on pre-clinical and clinical applications, use and biocompatibility.