干旱区生态环境知识资源中心(Arid): Desalination of brackish ground waters and produced waters using in-situ precipitation.

Arid

DOI	10.2172/919133
报告编号	SAND2004-3908
来源ID	OSTI_ID: 919133
	Desalination of brackish ground waters and produced waters using in-situ precipitation.
	Krumhansl, James Lee; Pless, Jason; Nenoff, Tina Maria; Voigt, James A.; Phillips, Mark L. F.; Axness, Marlene; Moore, Diana Lynn; Sattler, Allan Richard
英文摘要	The need for fresh water has increased exponentially during the last several decades due to the continuous growth of human population and industrial and agricultural activities. Yet existing resources are limited often because of their high salinity. This unfavorable situation requires the development of new, long-term strategies and alternative technologies for desalination of saline waters presently not being used to supply the population growth occurring in arid regions. We have developed a novel environmentally friendly method for desalinating inland brackish waters. This process can be applied to either brackish ground water or produced waters (i.e., coal-bed methane or oil and gas produced waters). Using a set of ion exchange and sorption materials, our process effectively removes anions and cations in separate steps. The ion exchange materials were chosen because of their specific selectivity for ions of interest, and for their ability to work in the temperature and pH regions necessary for cost and energy effectiveness. For anion exchange, we have focused on hydrotalcite (HTC), a layered hydroxide similar to clay in structure. For cation exchange, we have developed an amorphous silica material that has enhanced cation (in particular Na{sup +}) selectivity. In the case of produced waters with high concentrations of Ca{sup 2+}, a lime softening step is included.
出版年	2004
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	54 ENVIRONMENTAL SCIENCES ; DESALINATION ; WASTE WATER ; GROUND WATER ; ION EXCHANGE ; ION EXCHANGE MATERIALS ; PRECIPITATION ; ADSORBENTS ; SALINITY ; BRINES Salinity. ; Water chemistry. ; Seawater. ; Groundwater.
URL	http://www.osti.gov/scitech/servlets/purl/919133
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/268768
推荐引用方式 GB/T 7714	Krumhansl, James Lee,Pless, Jason,Nenoff, Tina Maria,et al. Desalination of brackish ground waters and produced waters using in-situ precipitation.,2004.