期刊
WATER
卷 11, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/w11081529
关键词
distributed temperature sensing; infiltration and inflow; snowmelt; foul sewers
资金
- Research Council Formas [2012-618]
- Vinnova [2011-03232]
- Skelleftea municipality, within the Stormwater&Sewers (Dag&Nat) research cluster
Infiltration and inflow (I/I) into sewers cause negative effects on the sewer system, wastewater treatment plant and environment. Identifying the causes and locating the inflows is necessary in order to address the I/I problem. This paper focuses on using distributed temperature sensing (DTS) for identifying, locating and characterising I/I into a sewer system during the end of winter-beginning of summer transition period under dry and wet weather conditions. During snowmelt, several locations with I/I were identified, while these locations did not show I/I during storm events after the snowmelt. In addition, during a very heavy storm after the snowmelt period, I/I was found at other locations. Therefore, DTS was demonstrated to be effective in identifying the type of I/I and in locating I/I. Finally, I/I monitoring campaigns in cold climates should take into account the variety of pathways of I/I during snowmelt and during rainfall.
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