Filtering with a drill pump: an efficient method to collect suspended sediment
Filtering with a drill pump: an efficient method to collect suspended sediment
复制标题
用钻泵过滤：收集悬浮沉积物的有效方法
DOI：
--
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
M. Baker
中科院分区：
文献类型：
--
作者：
J. Kelso;M. Baker
跨多个学科的水质监测项目使用总悬浮固体 (TSS) 和挥发性悬浮固体 (VSS) 来评估地表水和地下水的潜在损害。虽然之前已经开发出河流过滤方法，但随着验证和补充探空仪和瞬时数据记录仪产生的数据的需要，对快速、经济高效、大容量采样的需求也随之增加。我们提出了一种使用便携式钻泵过滤河中水的有效方法，可减少样品处理时间，并可能减少与样品运输、保存、污染和均质化相关的误差。本技术说明概述了流内过滤与实验室过滤的优势。它还比较了使用钻泵过滤的 TSS 和 VSS 浓度与使用真空泵的标准过滤方法（如 USEPA 方法 160.2 和 160.4 中所述）。样品在 4 个地点采集并在现场过滤，或运至实验室并在采集后 12 或 24 小时内过滤。与在实验室中使用钻泵过滤的总体 TSS 和 VSS 样品相比，每种方法产生的浓度相似，变异范围相似。使用钻泵过滤样品将每个样品的处理时间减少了五分钟。
Water quality monitoring programs across multiple disciplines use total suspended solids (TSS), and volatile suspended solids (VSS), to assess potential impairments of surface water and groundwater. While previous methods for instream filtering have been developed, the need for rapid, cost‐effective, high volume sampling has increased with the need to verify and supplement data produced by sondes and instantaneous data loggers. We present an efficient method to filter water instream with a portable drill pump that results in reduced sample processing time, and potentially reduced error associated with sample transportation, preservation, contamination, and homogenization. This technical note outlines the advantages of filtering instream vs. in the laboratory. It also compares TSS and VSS concentrations filtered with a drill pump vs. standard filtration methods with a vacuum pump as outlined by USEPA methods 160.2 and 160.4. Samples were collected at 4 sites and filtered in the field, or transported to the laboratory and filtered within 12 or 24 h of collection. Overall TSS and VSS samples filtered instream with a drill pump vs. in the laboratory produced similar concentrations with a similar range in variability for each method. Sample filtering with a drill pump decreased processing time by five minutes per sample.