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Record nummer 2034787
Titel artikel Assessment of detection limits of fiber-optic distributed temperature sensing for detection of illicit connections
Auteur(s) Nienhuis, J. ; Haan, C. de ; Langeveld, J. ; Klootwijk, M. ; Clemens, F.
Tijdschrifttitel Water science and technology : a journal of the International Association on Water Pollution Research
Deel(Jaar)Nummer 67(2013)12
Paginering 2712 - 2718
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Trefwoorden (cab) riolering / rioolbuizen / rioolafvalwater / temperatuur / monitoring / lozing / detectie / aftasten / locatie / optische instrumenten / kabels / malversatie / noord-brabant
Rubrieken Afvalverwerking
Publicatie type Artikel
Taal Engels
Toelichting (Engels) Distributed temperature sensing (DTS) with fiber-optic cables is a powerful tool to detect illicit connections in storm sewer systems. High-frequency temperature measurements along the in-sewer cable create a detailed representation of temperature anomalies due to illicit discharges. The detection limits of the monitoring equipment itself are well-known, but there is little information available on detection limits for the discovery of illicit connections, as in mixing of sewers, and attenuation also plays an important role. This paper describes the results of full-scale experiments aiming to quantify the detection limits for illicit connections under various sewer conditions. Based on the results, a new monitoring set-up for (partially) filled sewer conduits has been proposed.
Betrokken instanties Royal Haskoning
Technische Universiteit Delft, Faculteit Civiele Techniek en Geowetenschappen
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