Universidade da Coruña, Water and Environmental Engineering Group (GEAMA), Elviña, A Coruña 15071, Spain E-mail:
Water Sci Technol. 2017 Apr;2017(1):8-15. doi: 10.2166/wst.2018.055.
This research is focused in the monitoring of sediments in circular sewer pipes with different diameters at a flume facility fed with urban wastewater. For this purpose, sediment physical and chemical characteristics, and sediment mobility were recorded. The Structure from Motion photogrammetric technique was used for the measurement of sediment bed evolution. In addition, sediment properties were determined in order to study the cohesiveness of the bed deposits. In particular, the chemical oxygen demand and the oxygen uptake rate of the sediment samples were analysed after different accumulation periods on the pipe inverts, resulting in a relation between these parameters and the mobility processes of solids.
本研究集中于在带有不同直径的圆形污水管道中监测水槽设施中的沉积物，该水槽设施以城市污水为进水。为此，记录了沉积物的物理化学特性和沉积物的可动性。使用运动结构摄影测量技术测量了沉积物床的演变。此外，还确定了沉积物特性，以研究床沉积物的粘性。特别是，在管道倒置处不同的累积时间后，对沉积物样品的化学需氧量和耗氧率进行了分析，从而得出这些参数与固体的可动性过程之间的关系。
