Boron Removal From Geothermal Water Using Membrane Processes
Küçük Resim Yok
Tarih
2015
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Inc.
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The World Health Organization (WHO) has recommended the drinking water limits for boron to be as low as 0.5. mg. B/L for a long period. But, in 2011, the Drinking Water Quality Committee of WHO revised the Boron Guideline Value as 2.4. mg. B/L. On the other hand, European Union (EU) still stipulates the maximum admissible value for the concentration of boron at 1. mg/L in drinking water. Boron is vital trace element for plant growth as it is required for some metabolic activities, and is supplied in fertilizer and in irrigation water. On the other hand, it was reported that the tolerance limit of boron depends on the type of the plant. Although some plants such as lettuce, cabbage, and celery are quite resistant to boron concentrations higher than 2. mg/L, some others such as blackberry, citrus, peach, cherry, plum, and grape can only withstand boron concentration less than 1.0. mg/L. The adverse effect of high boron levels can be observed as the reduction of root cell division, retarded root growth, inhibition of photosynthesis, deposition of lignin and suberin, decrease in leaf chlorophyll, etc. In most crops, the symptoms of boron toxicity are shown as burned edges on the older leaves, yellowing of the leaf tips, accelerated decay, and ultimately plant expiration. These symptoms are, of course, highly dependent on the type of plant. This chapter will especially deal with the application of membrane separation methods such as reverse osmosis, sorption-membrane filtration hybrid and electromembrane (electrodialysis, electrodeionization) methods for boron removal from geothermal water. © 2015 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Boron, Desalination, Electrodeionization (EDI), Electrodialysis (ED), Geothermal water, Membrane processes, Reverse osmosis (RO)
Kaynak
Boron Separation Processes
WoS Q Değeri
Scopus Q Değeri
N/A
