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Evaluation of water quality parameters (Enterococcus spp., total suspended solids and specific conductance) in harvested rainwater and implications for management and use.

机译：评价收获的雨水中的水质参数（肠球菌属，总悬浮固体和比电导）及其对管理和使用的影响。

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摘要

Rainwater harvesting (RWH) has recently been reintroduced as both a viable source of water for people worldwide. However, the quality of harvested rainwater is variable and dependent on a number of factors including location, system design, and user maintenance of the system. This study evaluated three water quality parameters - Enterococcus spp., total suspended solids (TSS), and specific conductance - at two rainwater harvesting systems in the Charleston, SC metropolitan area at different points and times in the RWH systems. Correlations between both the sampling points within the RWH system and the variables of precipitation, preceding dry period, and volume stored within the cistern were determined. Results showed that enterococci and TSS concentrations typically decreased as harvested rainwater moved through and was stored in the system. Use of the stored rainwater significantly decreased enterococci concentrations at the point of use. Precipitation, dry period, stored volume and location affected contaminant presence at the point of use and the effectiveness of the first flush diverter. Practitioners should be aware that the quality of their water could depend on their ability to regularly use harvested water, the location of their system, and the weather patterns in their area. Results from this study add to the growing field of knowledge surrounding the practice of rainwater harvesting that can be used to guide RWH practitioners.
机译：雨水收集（RWH）最近被重新引入，成为全世界人们的可行水源。但是，收集到的雨水的质量是可变的，并且取决于许多因素，包括位置，系统设计和系统的用户维护。这项研究评估了三个水质参数-肠球菌属，总悬浮固体（TSS）和比电导-在RWH系统中不同地点和时间在南卡罗来纳州查尔斯顿的两个雨水收集系统中。确定了RWH系统中两个采样点与降水量，之前的干燥期以及水箱内存储的体积之间的相关性。结果表明，随着收集的雨水流过并存储在系统中，肠球菌和TSS浓度通常会降低。使用储存的雨水在使用时会显着降低肠球菌浓度。沉淀物，干燥时间，储存量和位置会影响使用时的污染物存在以及首次冲洗分流器的有效性。从业者应意识到，他们的水质可能取决于他们定期使用收集的水的能力，系统的位置以及所在地区的天气状况。这项研究的结果增加了围绕雨水收集实践的知识领域，可用于指导RWH从业者。

著录项

  • 作者

    Wooten, Leslie Ann.;

  • 作者单位

    College of Charleston.;

  • 授予单位 College of Charleston.;
  • 学科 Environmental science.;Environmental engineering.;Water resources management.
  • 学位 M.S.
  • 年度 2015
  • 页码 97 p.
  • 总页数 97
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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