Environmental Impact And Impact Assessment Of Seawater Desalination Pdf

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The growth gap between supply and demand for water in the GCC countries can be attributed to limited available surface water, high population growth and urbanization development, deficient institutional arrangements, poor management practices, water depletion and deterioration of quality, especially in shallow groundwater aquifers. Increasing demand for water in the domestic sector has shifted attention to the role of desalination in alleviating water shortages. Experience in the Gulf States demonstrates that desalination technology has developed to a level where it can serve as a reliable source of water at a price comparable to water from conventional sources. Desalination remains in GCC countries the most feasible alternative to augment or meet future water supply requirements. It is considered a strategic option for satisfying current and future domestic water supply requirements, in comparison to the development of other water resources. Despite the many benefits the technology has to offer, concerns rise over potential negative impacts on the environment.

Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI: This paper focuses on Environmental impacts associated with concentrated brine rejection in the Mediterranean arising from seawater desalination plants in Algeria. These impacts are mainly due to brine discharge but also to a lesser degree the chemicals used in the cleaning of various modules, thermal pollution, etc.. View via Publisher. Save to Library.

Development of an environmental impact assessment and decision support system for seawater desalination plants. Amy, G. Civil Engineering and Geosciences. Seawater desalination is a rapidly growing coastal-based industry. Seawater desalination is an energy-intensive process.

Environmental Impact of Seawater Desalination Plants: Case Study in Algeria

The main purpose of this work is to evaluate the importance of electricity production models based on the environmental impacts from a brackish water reverse osmosis BWRO plant. The results highlight Singapore, the country with unique fuel mixes for electricity generation, achieves relatively better environmental savings in most impact categories at the current stage due to a high percentage of natural gas in the fossil fuel matrix. Results from uncertainty analysis further recognize the significance of this advantage. Furthermore, the results indicate the antiscalant application, power plant efficiency, and fuel exploration and production are also highly associated with the environmental performance of BWRO plant in certain categories. It also provides a good reference for potential strategies to relieve environmental impacts of the RO desalination process. If you are not the author of this article and you wish to reproduce material from it in a third party non-RSC publication you must formally request permission using Copyright Clearance Center.

The goal of this study was to examine whether benthic foraminifera, a known sensitive marine bio-indicator, are affected by this brine-discharge. For that, we investigated the seasonal and cumulative effect of brine discharges of three operating desalination facilities along the Israeli coast. Those facilities are located in Ashkelon, Hadera, and Sorek. The brine-discharge in the first two desalination plants is associated with thermal pollution, while the Sorek facility entails increased salinity but no thermal pollution. In four seasonal cruises during one year, we collected surface sediment samples in triplicates by grabs from the outfall near the discharge site , and from a non-impacted control station adjacent to each study site. Our results highlight that the most robust responses were observed at two out of three desalination shallow sites Ashkelon and Hadera , where the brine was discharged directly from a coastal outfall and was accompanied with thermal pollution from the nearby power plants. The total foraminiferal abundance and diversity were, generally, lower near the outfalls, and increased towards the control stations.


To safeguard a sustainable use of desalination technology, the impacts of each major desalination project should be investigated and mitigated by means of a project- and location-specific environmental impact assessment (EIA) study, while the benefits and impacts of different water supply options should be balanced on.


Desalination

Enormous amounts of seawater are desalted everyday worldwide. The total world production of fresh water from the sea is about mgd 9. Desalting processes are normally associated with the rejection of high concentration waste brine from the plant itself or from the pretreatment units as well as during the cleaning period. In thermal processes, mainly multistage flash MSF thermal pollution occurs. These pollutants increase the seawater temperature, salinity, water current and turbidity.

Seawater desalination is increasing globally, and in light of this, it is necessary to look at the environmental and ecological impacts of desalination plants on the marine environment. Marine Impacts of Seawater Desalination: Science, Management, and Policy combines existing studies and new research into a unified work describing the interplay of seawater desalination and the marine environment. In particular, the book identifies knowledge gaps in the current data and recommends future research paths. The book also covers the established and emerging desalination processes and the policies and regulations applied to seawater desalination. Marine Impacts of Seawater Desalination is an ideal reference for engineers and developers working on environmental-related issues of seawater desalination, scientists and researchers studying these issues, as well as regulators and decision makers who can use this book as a useful guide for planning and operating desalination plants.

This work focuses on Environmental impacts associated with concentrated brine rejection arising from seawater desalination plants in Algeria. These impacts are mostly due to the highly saline brine that is discharged into the sea, which may be increased by temperature, contain residual chemicals from the pretreatment process, heavy metals from corrosion or intermittently used cleaning agents. We performed the measurement of seawater quality the concentration of heavy metals in an accumulator bio-algae and sediment in the turn of the rejection of the station.

Impacts of seawater desalination plants on the marine environment of the Gulf

Many coastal areas in the Gulf experience a rapid industrial and urban growth. This development is sustained by an increasing number of seawater desalination plants in the region which satisfy the growing demand for fresh water. Due to their waste water discharges to the sea, desalination plants - and especially MSF plants - must be considered a main source of pollution in the Gulf. It is estimated that the combined discharge of all MSF plants in the Gulf amounts to a waste water flow of about 1, m 3 per second - which is the equivalent of a major river. This waste water is characterised by increased salinity and elevated temperature. It additionally contains substantial amounts of chemical pollutants, such as chlorine which is used for biofouling control in the plants , antiscalants which are used for scale inhibition and heavy metals which are present due to corrosion. Unable to display preview.

Desalination is a process that takes away mineral components from saline water. More generally, desalination refers to the removal of salts and minerals from a target substance, [1] as in soil desalination , which is an issue for agriculture. Saltwater especially sea water is desalinated to produce water suitable for human consumption or irrigation. The by-product of the desalination process is brine. Most of the modern interest in desalination is focused on cost-effective provision of fresh water for human use.


and of avoiding some of the dangers of the environment to desalination. Keywords: Seawater desalination; Environmental impact; Impact assessment; EIA;.


Enormous amounts of seawater are desalted everyday worldwide. The total world production of fresh water from the sea is about mgd 9. Desalting processes are normally associated with the rejection of high concentration waste brine from the plant itself or from the pretreatment units as well as during the cleaning period. In thermal processes, mainly multistage flash MSF thermal pollution occurs.

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Католицизм здесь посильнее, чем в самом Ватикане. - У нас, конечно, не все его тело, - добавил лейтенант.  - Solo el escroto. Беккер даже прервал свое занятие и посмотрел на лейтенанта. Solo el escroto.

Impacts of seawater desalination plants on the marine environment of the Gulf