Aquatic Systems Engineering

Author: Pedro Ramon Escobal
Publisher:
ISBN: 9781888381108
Format: PDF
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All You Need to Know about Turnover Times, Filters, Sterilizers, Reactors, Venturis, Skimmers, Pumps, Hydraulics, Heat, Ozone, Oxygen, Carbon Dioxide, Calcium, Tank Bio-Load Capacity, and Light Requirements, Presented Wherever Possible in an Easy-to-Use Graphical Format, Backed up by Many Examples and Problems with Worked-Out Answers Book jacket.

Aquatic Systems Engineering

Author: Pedro Ramon Escobal
Publisher:
ISBN:
Format: PDF, ePub, Docs
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Finally, a constant reference & guide aimed at the serious hobbyist, aquatic student & retailer. All the information the user needs to know is presented wherever possible in an easy to use graphical format. At least 80% of the material is brand new & not available elsewhere. New theories are presented & proven by analysis. The reader can skip the analysis if desired or follow the analysis using an Appendix which quickly reviews the simple math required to follow the proofs. The book has many illustrated examples & additional problems with worked out solutions. Testimonials from aquatic experts, trade magazine editors & retailers state that this is a "must have book". The book clearly shows how to save time & money & protect the user's investment by selection of the proper equipment. It shows how to install the necessary life support equipment & operate the systems correctly. Contents include: Devices & Definitions, Duration of Water Exchanges, Sterilizer Selection, Theory of Ultraviolet Sterilizers, Reactors, Venturis, Protein Skimmers, Water Pumps, Installation Hydraulics, Heat Requirements, & Ozone Sterilization. Written by an engineer & aquatic device manufacturer who has published 6 books, it is presently available from: Dimension Engineering Press, P.O. Box 2457, Oxnard, CA 93033. Ph. (805) 487-2248; FAX (805) 486-2491.

Biological Monitoring of Aquatic Systems

Author: Stanford, L. Loeb
Publisher: CRC Press
ISBN: 9780873719100
Format: PDF, Mobi
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With regional, national, and global processes affecting both the structure and function of lakes and rivers, assessment methodology must encompass many attributes to evaluate the impact of these processes on water quality. Many of the changes in biological communities correlate to resource exploitation, nonpoint pollutant interactions, and habitat alteration - factors that can be missed by routine chemical sampling. This creates the need for ecologically-based approaches to this problem. Biological monitoring is a fundamental part of an ecologically-based approach. Biological Monitoring of Aquatic Systems brings together contributions by authors recognized as leaders in the development and utilization of biological monitoring techniques for freshwater ecosystems. It provides a conceptual framework for the use of biological monitoring to assess the environmental health of freshwater resources. Biological monitoring is an important part of any water quality assessment program. Biological Monitoring of Aquatic Systems provides you with an understanding of water resources. It includes discussions concerning historical development, ecological basis, experimental design characteristics, case studies, and future concerns. As efforts to maintain and restore the world's water resources intensify, the need to develop accurate methods to assess the health of these resources becomes critical.

Metal Speciation and Bioavailability in Aquatic Systems

Author: André Tessier
Publisher: John Wiley & Sons Incorporated
ISBN:
Format: PDF, ePub, Mobi
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Metal Speciation and Bioavailability in Aquatic Systems is the first comprehensive review to deal with fundamental concepts and models, speciation measurements and field applications in metal speciation and bioavailability in aquatic environments. This volume provides a thorough review of current developments concerning the interactions between trace metals and aquatic organisms. Metal Speciation and Bioavailability in Aquatic Systems provides: * The first comprehensive approach to the subject covering all aspects of trace metal ecotoxicology in the environment. * Essential reading for researchers and graduate students who will appreciate critical reviews of classical and modern methods of metal speciation. * Contributions from leading scientists from many disciplines assessing both analytical and physical methods applied to this growing field of environmental analysis. * An introduction to the use of laboratory bioassays as predictive tools for understanding trace metal organism interactions. * An examination of the use and limitations of bioassays in management decisions. The interdisciplinary nature of this topic is highlighted in Metal Speciation and Bioavailability in Aquatic Systems, ensuring that this volume is invaluable for chemists, biochemists, biologists, ecologists and environmental engineers involved in the fields of metal ecotoxicology, metal speciation, environmental and analytical chemistry, and the management of trace metals in aquatic systems.

Chemical Kinetics and Process Dynamics in Aquatic Systems

Author: PatrickL. Brezonik
Publisher: Routledge
ISBN: 1351461508
Format: PDF
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Chemical Kinetics and Process Dynamics in Aquatic Systems is devoted to chemical reactions and biogeochemical processes in aquatic systems. The book provides a thorough analysis of the principles, mathematics, and analytical tools used in chemical, microbial, and reactor kinetics. It also presents a comprehensive, up-to-date description of the kinetics of important chemical processes in aquatic environments. Aquatic photochemistry and correlation methods (e.g., LFERs and QSARs) to predict process rates are covered. Numerous examples are included, and each chapter has a detailed bibliography and problems sets. The book will be an excellent text/reference for professionals and students in such fields as aquatic chemistry, limnology, aqueous geochemistry, microbial ecology, marine science, environmental and water resources engineering, and geochemistry.

Groundwater Geochemistry

Author: Broder J. Merkel
Publisher: Springer Science & Business Media
ISBN: 9783540746683
Format: PDF, Kindle
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To understand hydrochemistry and to analyze natural as well as man-made impacts on aquatic systems, hydrogeochemical models have been used since the 1960’s and more frequently in recent times. Numerical groundwater flow, transport, and geochemical models are important tools besides classical deterministic and analytical approaches. Solving complex linear or non-linear systems of equations, commonly with hundreds of unknown parameters, is a routine task for a PC. Modeling hydrogeochemical processes requires a detailed and accurate water analysis, as well as thermodynamic and kinetic data as input. Thermodynamic data, such as complex formation constants and solubility-products, are often provided as databases within the respective programs. However, the description of surface-controlled reactions (sorption, cation exchange, surface complexation) and kinetically controlled reactions requires additional input data. Unlike groundwater flow and transport models, thermodynamic models, in principal, do not need any calibration. However, considering surface-controlled or kinetically controlled reaction models might be subject to calibration. Typical problems for the application of geochemical models are: • speciation • determination of saturation indices • adjustment of equilibria/disequilibria for minerals or gases • mixing of different waters • modeling the effects of temperature • stoichiometric reactions (e.g. titration) • reactions with solids, fluids, and gaseous phases (in open and closed systems) • sorption (cation exchange, surface complexation) • inverse modeling • kinetically controlled reactions • reactive transport Hydrogeochemical models depend on the quality of the chemical analysis, the boundary conditions presumed by the program, theoretical concepts (e.g.

Lipids in Aquatic Ecosystems

Author: Michael T. Arts
Publisher: Springer Science & Business Media
ISBN: 9780387893662
Format: PDF
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Evidence now suggests that the roles of essential fatty acids as growth promoters and as indices of health and nutrition are fundamentally similar in freshwater and marine ecosystems. Lipids in Aquatic Ecosystems integrates this divergent literature into a coordinated, digestible form. Chapters are organized so as to discuss and synthesize the flow of lipids from lower to higher trophic levels, up to and including humans. Linkages between the production, distribution and pathways of these essential compounds within the various levels of the aquatic food webs, and their ultimate uptake by humans and other terrestrial organisms, are highlighted throughout the book. This book will be of interest to researchers and resource managers working with aquatic ecosystems.

Environmental Microbiology of Aquatic and Waste Systems

Author: Nduka Okafor
Publisher: Springer Science & Business Media
ISBN: 9789400714601
Format: PDF, Kindle
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This book places the main actors in environmental microbiology, namely the microorganisms, on center stage. Using the modern approach of 16S ribosomal RNA, the book looks at the taxonomy of marine and freshwater bacteria, fungi, protozoa, algae, viruses, and the smaller aquatic animals such as nematodes and rotifers, as well as at the study of unculturable aquatic microorganisms (metagenomics). The peculiarities of water as an environment for microbial growth, and the influence of aquatic microorganisms on global climate and global recycling of nitrogen and sulphur are also examined. The pollution of water is explored in the context of self-purification of natural waters. Modern municipal water purification and disease transmission through water are discussed. Alternative methods for solid waste disposal are related to the economic capability of a society. Viruses are given special attention. By focusing on the basics, this primer will appeal across a wide range of disciplines.

Antibiotic Resistance in Aquatic Systems

Author: Satoru Suzuki
Publisher: Frontiers Media SA
ISBN: 2889451313
Format: PDF
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Rivers, lakes and the ocean receive antibiotic resistance genes from human environments. The aquatic environments are a huge reservoir and exchange stage of antibiotic resistance genes.

Restoration of Aquatic Systems

Author: Robert J. Livingston
Publisher: CRC Press
ISBN: 9780203492536
Format: PDF, ePub, Docs
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Simplistic thinking would have us believe that by eliminating the loading of a given pollutant, an aquatic system will revert to its previous pristine state. This premise is without scientific verification. Besides the fact that typically very little documentation exists defining what exactly that previous pristine state was, it should be noted that biological processes are non-linear. They reflect adaptations by populations and corresponding responses of trophic organization that are not predictable by linear models of recovery. Restoration of Aquatic Systems makes a clear delineation between genuine restoration and public perception of restoration efforts. Written by Robert Livingston, one of the foremost international authorities on ecosystem studies of freshwater, estuarine, and marine environments, this work is the final volume of a trilogy derived from 70 field-years of data garnered from 10 different coastal systems on the Atlantic and Gulf coasts. The text provides a synthetic look at the restoration of aquatic systems, emphasizing the functional basis that supports such activities, followed by a review of the evidence of recovery. Livingston considers numerous cases of scientific restoration; however, while the first two volumes could be considered pure science, this volume brings into play the impact of political as well as economic interests and where appropriate, media leverage. This work is thus concerned with just how effective the restoration process becomes as a product of a complex mixture of competing interests. From this effort, an interdisciplinary comparative database has been created that is currently being published in a series of books and peer-reviewed scientific journals. This work is used to evaluate system-level processes that determine the effects of nutrient loading and nutrient dynamics on phytoplankton/benthic macrophyte productivity and associated food web responses.