Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s10040-010-0659-0 |
Excess air during aquifer storage and recovery in an arid basin (Las Vegas Valley, USA) | |
Solomon, D. Kip1; Cole, Erin2; Leising, Joseph F.3 | |
通讯作者 | Solomon, D. Kip |
来源期刊 | HYDROGEOLOGY JOURNAL
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ISSN | 1431-2174 |
出版年 | 2011 |
卷号 | 19期号:1页码:187-194 |
英文摘要 | The Las Vegas Valley Water District in Nevada, USA, has operated an artificial recharge (AR) program since 1989. In summer 2001, observations of gas exsolving from tap water prompted a study that revealed total dissolved gas (TDG) pressures approaching 2 atm with a gas composition that it is predominantly air. Measurements of TDG pressure at well heads and in the distribution system indicated two potential mechanisms for elevated TDG pressures: (1) air entrainment during AR operations, and (2) temperature changes between the winter recharge season and the summer withdrawal season. Air entrainment during pumping was investigated by intentionally allowing the forebay (upstream reservoir) of a large pumping station to drawdown to the point of vortex formation. This resulted in up to a 0.7 atm increase in TDG pressure. In general, the solubility of gases in water decreases as the temperature increases. In the Las Vegas Valley, water that acquired a modest amount of dissolved gas during winter artificial recharge operations experienced an increase in dissolved gas pressure (0.04 atm/A degrees C) as the water warmed in the subsurface. A combination of air entrainment during AR operations and its amplification by temperature increase after recharge can account for most of the observed amounts of excess gas at this site. |
英文关键词 | Artificial recharge Dissolved gas Arid regions Hydrochemistry USA |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000286209700016 |
WOS关键词 | IN-GROUND WATER ; NOBLE-GASES |
WOS类目 | Geosciences, Multidisciplinary ; Water Resources |
WOS研究方向 | Geology ; Water Resources |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/168405 |
作者单位 | 1.Univ Utah, Dept Geol & Geophys, Salt Lake City, UT 84112 USA; 2.Las Vegas Valley Water Dist, Las Vegas, NV 89153 USA; 3.So Nevada Water Author, Molasky Corp Ctr, Las Vegas, NV 89106 USA |
推荐引用方式 GB/T 7714 | Solomon, D. Kip,Cole, Erin,Leising, Joseph F.. Excess air during aquifer storage and recovery in an arid basin (Las Vegas Valley, USA)[J],2011,19(1):187-194. |
APA | Solomon, D. Kip,Cole, Erin,&Leising, Joseph F..(2011).Excess air during aquifer storage and recovery in an arid basin (Las Vegas Valley, USA).HYDROGEOLOGY JOURNAL,19(1),187-194. |
MLA | Solomon, D. Kip,et al."Excess air during aquifer storage and recovery in an arid basin (Las Vegas Valley, USA)".HYDROGEOLOGY JOURNAL 19.1(2011):187-194. |
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Excess air during aq(509KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 |
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