...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Life-Cycle Assessment of Advanced Nutrient Removal Technologies for Wastewater Treatment
【24h】

Life-Cycle Assessment of Advanced Nutrient Removal Technologies for Wastewater Treatment

机译：废水处理中高级营养去除技术的生命周期评估

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

Advanced nutrient removal processes, while improving the water quality of the receiving water body, can also produce indirect environmental and health impacts associated with increases in usage of energy, chemicals, and other material resources. The present study evaluated three levels of treatment for nutrient removal (N and P) using 27 representative treatment process configurations. Impacts were assessed across multiple environmental and health impacts using life-cycle assessment (LCA) following the Tool for the Reduction and Assessment of Chemical and Other Environmental Impacts (TRACI) impact-assessment method. Results show that advanced technologies that achieve high-level nutrient removal significantly decreased local eutrophication potential, while chemicals and electricity use for these advanced treatments, particularly multistage enhanced tertiary processes and reverse osmosis, simultaneously increased eutrophication indirectly and contributed to other potential environmental and health impacts including human and ecotoxicity, global wanning potential, ozone depletion, and acidification. Average eutrophication potential can be reduced by about 70% when Level 2 (TN = 3 mg/L; TP = 0.1 mg/L) treatments are employed instead of Level 1 (TN = 8 mg/L; TP = 1 mg/L), but the implementation of more advanced tertiary processes for Level 3 (TN = 1 mg/L; TP = 0.01 mg/L) treatment may only lead to an additional 1596 net reduction in life-cycle eutrophication potential.
机译：先进的营养去除工艺，在改善接收水体的水质的同时，还会产生与能源，化学药品和其他物质资源使用增加有关的间接环境和健康影响。本研究使用27种代表性处理工艺配置评估了三种营养去除水平的处理方法（氮和磷）。按照减少和评估化学及其他环境影响（TRACI）影响评估方法的生命周期评估（LCA），对多种环境和健康影响进行评估。结果表明，实现高水平养分去除的先进技术显着降低了局部富营养化的潜力，而用于这些先进处理的化学药品和电力使用，尤其是多级强化的三级过程和反渗透，同时间接增加了富营养化，并造成了其他潜在的环境和健康影响包括人类和生态毒性，全球潜力下降，臭氧消耗和酸化。当采用2级（TN = 3 mg / L; TP = 0.1 mg / L）处理代替1级（TN = 8 mg / L; TP = 1 mg / L）处理时，平均富营养化潜力可以降低约70％ ，但实施3级（TN = 1 mg / L; TP = 0.01 mg / L）处理的更高级的三次处理可能只会导致生命周期富营养化潜力进一步净减少1596。

著录项

  • 来源
    《Environmental Science & Technology》 |2016年第6期|3020-3030|共11页
  • 作者

    Sheikh M. Rahman; Matthew J. Eckelman; Annalisa Onnis-Hayden; April Z. Gu;

  • 作者单位

    Department of Civil and Environmental Engineering, Northeastern University, 400 Snell Engineering Center, 360 Huntington Ave, Boston, Massachusetts 02115, United States;

    Department of Civil and Environmental Engineering, Northeastern University, 400 Snell Engineering Center, 360 Huntington Ave, Boston, Massachusetts 02115, United States;

    Department of Civil and Environmental Engineering, Northeastern University, 400 Snell Engineering Center, 360 Huntington Ave, Boston, Massachusetts 02115, United States;

    Department of Civil and Environmental Engineering, Northeastern University, 400 Snell Engineering Center, 360 Huntington Ave, Boston, Massachusetts 02115, 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