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Reclaimed Water Desalination Technologies

其他書名	A Full-scale Performance and Cost Comparison Between Electrodialysis Reversal and Microfiltration/reverse Osmosis
出版	WateReuse Research Foundation, 2012
主題	Technology & Engineering / Environmental / Water Supply
ISBN	19341834749781934183472
URL	http://books.google.com.hk/books?id=nu5cLwEACAAJ&hl=&source=gbs_api

註釋This report documents and compares the actual lifecycle costs and process performance of the two most common membrane processes used for removing salt from recycled water: reverse osmosis (RO) membranes with microfiltration (MF) pretreatment and electrodialysis reversal (EDR) membranes. The need to reduce the salinity of recycled water is becoming more widespread as wastewaters have become more saline and recycled water consumers have started demanding a higher quality product. In particular reycycled water users are increasingly consulting horticulturalists, agriculturists and landscaping experts to understand the impact of recycled water salt content has on specific irrigation applications. As a result, it has become more commonplace for reycled water consumers to require lower salinity in thier recycled water. Reduiced sailinity is also of interest to other recycled water applicaitons such as industrial applications and environmental restoration. Recently the regulatory community has indicated the need to desalinate recycled water the California State Water Board has drafted a document that requires agencies to prepare basin-specific salt and nutrient management plans by 2014. MF/RO and EDR have both been successfully applied to desalting in water reuse, but a full comparison of the actual lifecycle costs of existing full-scale systems has never been documented. This report is inteded to assist engineers, utility managers, and planners in selecing a membrane process for desalting recycled water.