...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Economic and Ecological Costs and Benefits of Streamflow Augmentation Using Recycled Water in a California Coastal Stream
【24h】

Economic and Ecological Costs and Benefits of Streamflow Augmentation Using Recycled Water in a California Coastal Stream

机译：在加利福尼亚州沿海河流中使用再生水增加河流流量的经济和生态成本与收益

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Streamflow augmentation has the potential to become an important application of recycled water in water scarce areas. We assessed the economic and ecological merits of a recycled water project that opted for an inland release of tertiary-treated recycled water in a small stream and wetland compared to an ocean outfall discharge. Costs for the status-quo scenario of discharging secondary-treated effluent to the ocean were compared to those of the implemented scenario of inland streamflow augmentation using recycled water. The benefits of the inland-discharge scenario were greater than the increase in associated costs by US$1.8M, with recreational value and scenic amenity generating the greatest value. We also compared physical habitat quality, water quality, and benthic macroinvertebrate community upstream and downstream of the recycled water discharge to estimate the effect of streamflow augmentation on the ecosystem. The physical-habitat quality was higher downstream of the discharge, although streamflow came in unnatural diurnal pulses. Water quality remained relatively unchanged with respect to dissolved oxygen, pH, and ammonia-nitrogen, although temperatures were elevated. Benthic macroinvertebrates were present in higher abundances, although the diversity was relatively low. A federally listed species, the California red-legged frog (Rana draytonue), was present. Our results may support decision-making for wastewater treatment alternatives and recycled water applications in Mediterranean climates.
机译：流量增加有潜力成为缺水地区循环水的重要应用。我们评估了一个再生水项目的经济和生态价值，该项目选择了将三级处理过的再生水向内排放到小溪和湿地，而不是海洋排污口。将将二级处理后的污水排放到海洋中的现状方案的成本与实施中利用循环水增加内河流量的方案的成本进行了比较。内陆排放情景的收益大于相关成本增加的180万美元，其中娱乐价值和景区便利设施产生了最大价值。我们还比较了物理生境质量，水质和再生水排放上游和下游的底栖大型无脊椎动物群落，以估算水流量增加对生态系统的影响。尽管水流以不自然的昼夜脉动进入，但在排放下游的物理栖息地质量较高。尽管温度升高，但相对于溶解氧，pH和氨氮，水质仍保持相对不变。虽然多样性相对较低，但底栖大型无脊椎动物的数量较多。存在联邦列出的物种，加利福尼亚红脚蛙（Rana draytonue）。我们的结果可能支持在地中海气候中进行废水处理替代方案和循环水应用的决策。

著录项

  • 来源
    《Environmental Science & Technology》 |2013年第19期|10735-10743|共9页
  • 作者

    Brian J. Halaburka; Justin E. Lawrence; Heather N. Bischel; Janet Hsiao; Megan H. Plumlee; Vincent H. Resh; Richard G. Luthy;

  • 作者单位

    Re-inventing the Nation's Urban Water Infrastructure (ReNUWIt), National Science Foundation Engineering Research Center,Department of Civil & Environmental Engineering, Stanford University, Stanford, California, 94305-4020, United States;

    Re-inventing the Nation's Urban Water Infrastructure (ReNUWIt), National Science Foundation Engineering Research Center,Department of Environmental Science, Policy, and Management, University of California, Berkeley, California 94720-3114, United States;

    Re-inventing the Nation's Urban Water Infrastructure (ReNUWIt), National Science Foundation Engineering Research Center,Department of Civil & Environmental Engineering, Stanford University, Stanford, California, 94305-4020, United States,EPFL ENAC IIE LCE CM 1 119, Station 2 CH-1015 Lausanne, Switzerland;

    Re-inventing the Nation's Urban Water Infrastructure (ReNUWIt), National Science Foundation Engineering Research Center,Department of Environmental Science, Policy, and Management, University of California, Berkeley, California 94720-3114, United States;

    Kennedy/Jenks Consultants, San Francisco, California 94107, United States;

    Re-inventing the Nation's Urban Water Infrastructure (ReNUWIt), National Science Foundation Engineering Research Center,Department of Environmental Science, Policy, and Management, University of California, Berkeley, California 94720-3114, United States;

    Re-inventing the Nation's Urban Water Infrastructure (ReNUWIt), National Science Foundation Engineering Research Center,Department of Civil & Environmental Engineering, Stanford University, Stanford, California, 94305-4020, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号