Abstract
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.
Original language | English |
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Article number | 1529 |
Number of pages | 12 |
Journal | Water (Switzerland) |
Volume | 11 |
Issue number | 8 |
DOIs | |
Publication status | Published - 2019 |
Keywords
- Distributed temperature sensing
- Foul sewers
- Infiltration and inflow
- Snowmelt