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首页> 外文学位 >A case study on applying subsurface flow constructed wetlands (SFCWs) to treat combined sewer overflows (CSOs).
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A case study on applying subsurface flow constructed wetlands (SFCWs) to treat combined sewer overflows (CSOs).

机译：以地下流动人工湿地（SFCW）处理污水下水道溢流（CSO）的案例研究。

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摘要

Combined sewer overflows (CSOs) are a major source of water pollution in old cities with combined sewer systems. During the past 30 years, constructed wetlands have gained acceptance as a means to treat wastewater from domestic, agricultural and industrial sources. This dissertation is focused on the research question whether a specific CSO in Syracuse, NY is amenable to remediation by using a subsurface flow constructed wetland. Research in three different disciplines including technical studies which include water quality science, hydrological engineering, and plant science, sociology, and policy analysis has been conducted in this case study in order to answer the research question.;Water quality study results indicate that most parameters in the SSO exhibit a strong fluctuation with time in terms of their concentration. The result also indicates a moderate negative linear correlation between the 24-hour precipitation level and the ratio of sewage in the CSOs. Additionally, through analyzing the storm event CSO water quality data using multivariate statistical methods, the dominant parameters in the CSOs can be determined. In the wetland design part, the calculation of HRT and the prediction of fecal coliform removal rate for the proposed subsurface flow treatment wetland are conducted by using the k-c* model. In the vegetation selection study, the field experiment shows that both Prairie Cordgrass and Sweet Grass could be good candidate species for the proposed constructed wetland. The public perception study framework for the project is established based on four main study components: (1) Public perception, (2) Physical site user survey, (3) Interpretation/communication, (4) Operation and management. In the policy analysis part, the possibility of using constructed treatment wetlands as an optional BMP for CSO pollution abatement in New York State is analyzed through a modified stages model of policy-making cycle which incorporates a public participation plan. This research adds information to the literature body of constructed wetland studies and can be used in developing CSO mitigation programs.;Key Words: Subsurface Flow Treatment Wetland, Combined Sewer Overflow, Hydraulic Resident Time, Vegetation Selection, Policy-making Cycle
机译：下水道溢流（CSO）是带有下水道系统的老城区水污染的主要来源。在过去的30年中，人工湿地已被接受为处理来自家庭，农业和工业来源的废水的一种手段。本文主要针对以下问题进行研究：纽约州锡拉丘兹市的特定公民社会组织是否适合通过地下流动人工湿地进行治理。为了回答研究问题，在此案例研究中进行了三个不同学科的研究，包括水质科学，水文工程，植物科学，社会学和政策分析的技术研究。水质研究结果表明大多数参数SSO中的浓度在时间上表现出强烈的波动。结果还表明，24小时降水量水平与公民社会组织中污水比率之间呈中等程度的负线性相关。此外，通过使用多元统计方法分析暴雨事件CSO水质数据，可以确定CSO中的主要参数。在湿地设计部分，使用k-c *模型进行了拟议的地下流量处理湿地的HRT计算和粪大肠菌群去除率的预测。在植被选择研究中，田间试验表明，草原草和甜草都可能是拟建人工湿地的良好候选物种。该项目的公众认知研究框架是基于四个主要研究组件建立的：（1）公众认知；（2）实地用户调查；（3）解释/沟通；（4）运营和管理。在政策分析部分中，通过修改后的决策周期模型与公共参与计划相结合，分析了在纽约州使用人工处理湿地作为可选的BMP减少CSO污染的可能性。这项研究为人工湿地研究的文献资料增加了信息，可用于制定CSO缓解计划。关键词：地下流处理湿地，污水下水道联合溢流，水力停留时间，植被选择，决策周期

著录项

  • 作者

    Wu, Guihan.;

  • 作者单位

    State University of New York College of Environmental Science and Forestry.;

  • 授予单位 State University of New York College of Environmental Science and Forestry.;
  • 学科 Environmental Sciences.;Engineering Environmental.
  • 学位 Ph.D.
  • 年度 2008
  • 页码 179 p.
  • 总页数 179
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 环境科学基础理论;环境污染及其防治;
  • 关键词

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