Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"sewer leakage"”.
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Evaluation of sewer leakage into the stormwater drainage system in Singapore
… The purpose of this study was to determine if sewer leaks near building connections are a source of fecal contamination in the stormwater drainage system in Singapore. A two-step study was designed and implemented. First, water samples were collected from the downstream reaches of the …
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Assessment of sewer leakage by means of exfiltration measurements and modelling tests
Die vorliegende Dissertation hat die Bewertung und Modellierung der Exfiltration undichter Abwasserkanäle zum Thema. Verschiedene Methoden zur Bestimmung der Exfiltration werden ausführlich beschrieben. Es wurden Tracermethoden ausgewählt, in 5 Teileinzugsgebieten von Berlin und Dresden eingesetzt …
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Analysis of wet & dry weather bacterial concentrations within Kranji & Marina Catchments, Singapore
… point sources. Likely point sources are sanitary sewer leakage due to aging infrastructure in the commercial area. All measured concentrations exceeded Singapore and USEPA's recommended bacterial levels for recreational water. Hence, more wet-weather sampling is recommended in order to collect …
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An analysis of spatial and temporal variation in fecal indicator concentrations in Singapore
… low-density residential, commercial), and two sewer-age categories (new, old). The distributions of E. coli, enterococci, and total coliform were roughly lognormally distributed, showing that bacterial indicator concentration distributions are described by the same statistical model in tropical …