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Seawater Reverse Osmosis (SWRO) Desalination: Energy consumption in plants, advanced low-energy technologies, and future developments for improving energy efficiency

Author: Seungkwan Hong

Publisher: IWA Publishing

Published: 2023-05-15

Total Pages: 0

ISBN-13: 9781789061208

High-energy consumption is a critical issue associated with seawater reverse osmosis (SWRO) desalination, although the SWRO has been regarded as one of the most energy-efficient processes for seawater desalination. This means that SWRO involves a larger amount of fossil fuel and other energy sources for water production, which imposes a negative impact on the environment such as greenhouse gas emission. Therefore, the high-energy consumption of SWRO should be addressed to minimize environmental impacts and to allow for sustainable exploitation of seawater. However, the recent trend of energy consumption in SWRO seems to have reached a saturation point, which is still higher than theoretical minimum energy. To find new and innovative strategies for lowering current energy consumption, a comprehensive understanding of energy use in SWRO plants from theoretical analysis to actual energy consumption in real SWRO plants is required. This book can provide readers with information about the current state of energy consumption in actual SWRO plants, the fundamental understanding of energy use of SWRO plants from theoretical point of view, and advanced technologies and processes that could be applied for future energy reduction. In addition, this book will offer a detailed methodology for analyzing energy issues in seawater desalination. Through this book, readers will obtain an insight into how to deal with and analyze the energy issues in SWRO desalination.

Management of Concentrate from Desalination Plants

Author: Nikolay Voutchkov

Publisher: Elsevier

Published: 2020-08-15

Total Pages: 293

ISBN-13: 0128180463

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Management of Concentrate from Desalination Plants provides an overview of the alternatives for managing concentrate generated by brackish water and seawater desalination plants, as well as site-specific factors involved in the selection of the most viable alternative for a given project, and the environmental permitting requirements and studies associated with their implementation. The book focuses on widely used alternatives for disposal of concentrate, including discharge to surface water bodies; disposal to the wastewater collection system; deep well injection; land application; evaporation; and zero liquid discharge. Direct discharge through new outfall; discharge through existing wastewater treatment plant outfall; and co-disposal with the cooling water of existing coastal power plant are thoroughly described, and design guidance for the use of these concentrate disposal alternatives is presented with engineers and practitioners in the field of desalination in mind. Key advantages, disadvantages, environmental impact issues, and possible solutions are presented for each discharge alternative. Easy-to-use graphs depicting construction costs as a function of concentrate flow rate are provided for all key concentrate management alternatives. Gives a critical overview of the latest practices and technological advancements in managing concentrate Discusses the relationship between concentrate quality and quantity and other desalination processes Provides design and cost guidance information to assist practitioners with the selection and sizing of the most commonly practiced concentrate disposal alternatives

THERMAL DESALINATION PROCESSES - Volume I

Author:

Publisher: EOLSS Publications

Published: 2020-09-19

Total Pages: 480

ISBN-13: 1848264259

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Thermal Desalination Processes is a component of Encyclopedia of Water Sciences, Engineering and Technology Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. These volumes discuss matters of great relevance to our world on desalination which is a critically important as clearly the only possible means of producing fresh water from the sea for many parts of the world. The two volumes present state-of-the art subject matter of various aspects of Thermal desalination processes such as: Multi-Stage Flash evaporation (MSF) and Multi Effect Distillation (MED) and Mechanical / Thermal Vapor Compression, in addition to the Hybrid Desalination Systems. Chemical Dosing For Desalination; Control Scheme of the Plants; Steady-State Model; Steady-State Simulation; Dynamic Model; Economics and Performance of Desalination Plants. Theses volumes are aimed at the following five major target audiences: University and College Students Educators, Professional Practitioners, Research Personnel and Policy and Decision Makers.

Energy Recovery Devices in Seawater Reverse Osmosis Desalination Plants with Emphasis on Efficiency and Economical Analysis of Isobaric Versus Centrifugal Devices

Author: Mageed Jean Guirguis

Publisher:

Published: 2011

Total Pages:

ISBN-13:

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With huge demands for potable water in regions lacking fresh water sources such as surface or ground water, various potential technologies have been explored for eliminating water shortage. Seawater emerged as a potential source and a major lifeline for such water-deprived areas. The development of seawater reverse osmosis (SWRO) technology proved to be a groundbreaking innovation, making it easier to extract pure water from seawater. Ever since its inception, SWRO technology has taken many leaps towards the development of energy efficient and high yielding systems. The reduction in energy consumption of desalination plants that were based on the SWRO technology emerged as a major driver of the technology revolution in this field. The improvement of membrane life and salt rejection, increase in recovery, and decrease in energy consumption has been the primary criteria for sifting through available technologies for incorporation in desalination plants. Many developments have, ever since, occurred in this direction. The membrane life has multiplied and the Total Dissolved Solids in the product are now as low as 100 mg/L. In addition, recoveries of 40-50% have been achieved. By recycling energy, many SWRO desalination plants have significantly lowered their total energy consumption. With the help of energy recovery devices (ERDs), it is now possible to decrease power consumption and increase efficiency of the seawater reverse osmosis desalination plant. The first large-scale municipal SWRO plant was installed in 1980 in Jeddah, Saudi Arabia. This plant consumed 8 kilowatt-hours energy per cubic meter of water produced. This consumed energy was less than half of what was usually consumed by other conventional distillation processes. However, the SWRO desalination technology has one disadvantage. The seawater, which is to be desalinated, is pressurized with the help of high-pressure pumps. A large amount of energy is consumed during this process.

Desalination Engineering: Planning and Design

Author: Nikolay Voutchkov

Publisher: McGraw Hill Professional

Published: 2012-12-18

Total Pages: 674

ISBN-13: 0071777156

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An in-depth guide to reverse osmosis desalination This Water Environment Federation and WateReuse Association publication provides comprehensive information on the planning and engineering of brackish and seawater desalination projects for municipal water supplies. After a brief overview of widely used desalination technologies, Desalination Engineering focuses on reverse osmosis desalination. The book discusses basic principles, planning and environmental review of projects, design and selection of key desalination plant components, desalinated water posttreatment, and concentrate management. Guidelines on sizing and cost estimation of desalination plant facilities are also included in this practical resource. COVERAGE INCLUDES: Source water quality characterization Fundamentals of reverse osmosis desalination Planning considerations Environmental review and permitting Intakes for source water collection Intake pump stations Source water screening and conditioning Sand removal, sedimentation, and dissolved air flotation Pretreatment by granular media filtration Pretreatment by membrane filtration Comparison of granular media and membrane pretreatment Reverse osmosis separation Post-treatment of desalinated water Desalination plant discharge management Desalination project cost estimates

Renewable Energy Technologies for Water Desalination

Author: Hacene Mahmoudi

Publisher: CRC Press

Published: 2017-07-14

Total Pages: 470

ISBN-13: 1317287436

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The book presents a thorough overview of the latest trends and challenges in renewable energy technologies applications for water desalination, with an emphasis on environmental concerns and sustainable development. Emphasis is on the various uses of renewable energy, as well as economics & scale-up, government subsidies & regulations, and environmental concerns. It provides an indication on how renewable energy technologies are rapidly emerging with the promise of economic and environmental viability for desalination. Further it gives a clear indication on how exactly to accelerate the expansion and commercialization of novel water production systems powered by renewable energies and in what manner environmental concerns may be minimized. This book is all-inclusive and wide-ranging and directed at decision makers in government, industry and the academic world as well as students.

Desalination Technology

Author: Joseph Cotruvo

Publisher: CRC Press

Published: 2011-03-17

Total Pages: 212

ISBN-13: 1439859841

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Desalination Technology: Health and Environmental Impacts covers the latest developments in desalination, examining the environmental and public health-related impacts of these technologies. Written by international experts, the text presents specifications for assessing water quality, technical issues associated with desalination technologies, and the chemical aspects of desalinated water and its microbiology. The book also discusses environmental protection issues that assist in the optimization of proposed and existing desalination facilities to ensure that nations and consumers enjoy the benefits of the expanded access to desalinated water. This includes coverage of health and environmental issues such as energy conservation and sustainability as well as protection of delicate coastal ecosystems and groundwater from contamination by surface disposal of concentrates—challenges that must be addressed during the design, construction, and operation of a desalination facility. Development of new and improved desalinization technologies, including major cost reduction trends, have significantly broadened the opportunities to access large quantities of safe water in many parts of the world. And while there are many books available on desalination, this book’s unusual approach blends technical coverage of the latest technologies with coverage of the environmental and public health-related impacts of these technologies, setting it apart from other resources. It provides technical guidance based on the practical expertise of a balanced group of international scientists and engineers.

Pretreatment for Reverse Osmosis Desalination

Author: Nikolay Voutchkov

Publisher: Elsevier

Published: 2017-05-29

Total Pages: 308

ISBN-13: 0128099453

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Pretreatment for Reverse Osmosis Desalination is a comprehensive reference on all existing and emerging seawater pretreatment technologies used for desalination. The book focuses on reverse osmosis membrane desalination, which at present is the most widely applied technology for the production of fresh drinking water from highly saline water sources (brackish water and seawater). Each chapter contains examples illustrating various pretreatment technologies and their practical implementation. Provides in-depth overview of the key theoretical concepts associated with desalination pre-treatment Gives insight into the latest trends in membrane separation technology Incorporates analytical methods and guidelines for monitoring pretreatment systems

Intakes and Outfalls for Seawater Reverse-Osmosis Desalination Facilities

Author: Thomas M. Missimer

Publisher: Springer

Published: 2015-04-07

Total Pages: 551

ISBN-13: 3319132032

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The book assembles the latest research on new design techniques in water supplies using desalinated seawater. The authors examine the diverse issues related to the intakes and outfalls of these facilities. They clarify how and why these key components of the facilities impact the cost of operation and subsequently the cost of water supplied to the consumers. The book consists of contributed articles from a number of experts in the field who presented their findings at the "Desalination Intakes and Outfalls" workshop held at King Abdullah University of Science and Technology (KAUST) in Saudi Arabia in October, 2013. The book integrates coverage relevant to a wide variety of researchers and professionals in the general fields of environmental engineering and sustainable development.

Renewable Energy Desalination

Author: Bekele Debele Negewo

Publisher: World Bank Publications

Published: 2012-09-26

Total Pages: 236

ISBN-13: 0821394576

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The book looks at water availability and water demand in various sectors till 2050, presenting a methodology to prioritize options both on the demand and on the supply side, with a special focus on renewable energy desalination.