Locating illicit connections in storm water sewers using fiber-optic distributed temperature sensing

Hoes, Olivier; Schilperoort, Rémy; Luxemburg, W. M. J.; Clemens, F.H.L.R.; Giesen, Nick van de

doi:10.1016/j.watres.2009.08.020

Cited by 71 publications

(49 citation statements)

References 9 publications

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“…For example, houses appliances and showers heat domestic waters, and temperatures in the range 30-90 °C could be expected in the drain. Even though the temperature drops as the domestic water travels before discharging into the sewer system, temperatures warmer than 20 °C could be found at the illicit connection (Hoes et al, 2009a). Fig.…”

Section: Detection Of Illicit Connections In Storm Water Sewersmentioning

confidence: 99%

“…Illicit connections that introduce fouled water in storm water systems are very problematic because they result in the release of untreated sewage in surface water bodies such as rivers, lakes or even the sea. Recently, Hoes et al (2009a) developed a searching technique for detection of illicit connections in storm water system using DTS. Monitoring the temperature in storm water sewers allows finding anomalous temperatures or temperature variations at the illicit connections.…”

Section: Detection Of Illicit Connections In Storm Water Sewersmentioning

confidence: 99%

See 1 more Smart Citation

Heat Transfer in the Environment: Development and Use of Fiber-Optic Distributed Temperature Sensing

Suárez¹,

Hausner²,

Dozier³

et al. 2011

Developments in Heat Transfer

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Section: Detection Of Illicit Connections In Storm Water Sewersmentioning

confidence: 99%

Section: Detection Of Illicit Connections In Storm Water Sewersmentioning

confidence: 99%

Heat Transfer in the Environment: Development and Use of Fiber-Optic Distributed Temperature Sensing

Suárez¹,

Hausner²,

Dozier³

et al. 2011

Developments in Heat Transfer

View full text Add to dashboard Cite

“…Elaborate descriptions of monitoring accuracy, temperature adaptation time of the cable, and other monitoring characteristics can be found in Rogers (1988), Selker et al (2006a) and Tyler et al (2009). Practical aspects concerning the application of DTS in sewer systems are discussed in Hoes et al (2009). Detection limits of the technique in relation with detailed mounting of the cable in a sewer conduit are studied in Nienhuis et al (accepted).…”

Section: Distributed Temperature Sensingmentioning

confidence: 99%

“…Detection limits of the technique in relation with detailed mounting of the cable in a sewer conduit are studied in Nienhuis et al (accepted). Applications of the DTS technique in storm water sewers can be found in Hoes et al (2009); application of the DTS technique in a combined sewer is described in Schilperoort and Clemens (2009).…”

Section: Distributed Temperature Sensingmentioning

confidence: 99%

Searching for storm water inflows in foul sewers using fibre-optic distributed temperature sensing

Schilperoort

Hoppe²,

Haan

et al. 2013

Water Science and Technology

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A major drawback of separate sewer systems is the occurrence of illicit connections: unintended sewer cross-connections that connect foul water outlets from residential or industrial premises to the storm water system and/or storm water outlets to the foul sewer system. The amount of unwanted storm water in foul sewer systems can be significant resulting in a number of detrimental effects on the performance of the wastewater system. Efficient removal of storm water inflows into foul sewers requires knowledge on the exact locations of the inflows. This paper presents a monitoring technique that can be used to localize illicit storm water inflows into foul sewer systems: Distributed Temperature Sensing (DTS).Data results from two monitoring campaigns in foul sewer systems in the Netherlands and Germany show the level of detail with which in-sewer processes can be studied. Storm water inflow can be detected as long as the temperature of this inflow differs from the in-sewer temperatures prior to the event. Also, the insewer propagation of storm water can be monitored, enabling a detailed view on advection-dispersion and mixing processes.

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“…Fiber-optic temperature measurements may also be used in engineering, e.g. for the detection of illicit sewage connections (Hoes et al, 2009), hot spot identification in power cables (Yilmaz and Karlik, 2006) or the investigation of dam stability (Wang et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Autonomous distributed temperature sensing for long-term heated applications in remote areas

Kurth

Dawes

Selker

et al. 2013

Geosci. Instrum. Method. Data Syst.

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Abstract. Distributed temperature sensing (DTS) is a fiberoptical method enabling simultaneous temperature measurements over long distances. Electrical resistance heating of the metallic components of the fiber-optic cable provides information on the thermal characteristics of the cable's environment, providing valuable insight into processes occurring in the surrounding medium, such as groundwater-surface water interactions, dam stability or soil moisture. Until now, heated applications required direct handling of the DTS instrument by a researcher, rendering long-term investigations in remote areas impractical due to the often difficult and time-consuming access to the field site. Remote control and automation of the DTS instrument and heating processes, however, resolve the issue with difficult access. The data can also be remotely accessed and stored on a central database. The power supply can be grid independent, although significant infrastructure investment is required here due to high power consumption during heated applications. Solar energy must be sufficient even in worst case scenarios, e.g. during long periods of intense cloud cover, to prevent system failure due to energy shortage. In combination with storage batteries and a low heating frequency, e.g. once per day or once per week (depending on the season and the solar radiation on site), issues of high power consumption may be resolved. Safety regulations dictate adequate shielding and ground-fault protection, to safeguard animals and humans from electricity and laser sources. In this paper the autonomous DTS system is presented to allow research with heated applications of DTS in remote areas for long-term investigations of temperature distributions in the environment.

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Locating illicit connections in storm water sewers using fiber-optic distributed temperature sensing

Cited by 71 publications

References 9 publications

Heat Transfer in the Environment: Development and Use of Fiber-Optic Distributed Temperature Sensing

Heat Transfer in the Environment: Development and Use of Fiber-Optic Distributed Temperature Sensing

Searching for storm water inflows in foul sewers using fibre-optic distributed temperature sensing

Autonomous distributed temperature sensing for long-term heated applications in remote areas

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