2002
DOI: 10.2166/wst.2002.0112
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Infiltration and inflow in combined sewer systems: long-term analysis

Abstract: A study was conducted on 34 German combined sewer systems including combined sewer overflow (CSO) tanks and treatment plant to show up actual hidden reserves and bottlenecks in stormwater treatment. The study gave also a general insight into the water pathways in urban hydrology. A special focus was given to undesired non-polluted water infiltrating into the sewer, labelled infiltration and inflow (I/I) or infiltration inflows, which is widely underestimated. It leads to a bad performance of the drainage syste… Show more

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Cited by 84 publications
(32 citation statements)
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“…A quantitative assessment reveals that in 108 of the 194 investigated catchments in Belgium, more than 50% of the dry-weather sewer flow is due to groundwater infiltration 374 or 'parasitic water' (Dirckx et al, 2009). Similarly in Germany, Weiß et al (2002) state that on average 375 70% of treated water is originally non-polluted. 376 2.6.3 Groundwater extraction, flow and discharge 377…”
Section: Depression Storage Overland Flow and Runoff 238mentioning
confidence: 99%
“…A quantitative assessment reveals that in 108 of the 194 investigated catchments in Belgium, more than 50% of the dry-weather sewer flow is due to groundwater infiltration 374 or 'parasitic water' (Dirckx et al, 2009). Similarly in Germany, Weiß et al (2002) state that on average 375 70% of treated water is originally non-polluted. 376 2.6.3 Groundwater extraction, flow and discharge 377…”
Section: Depression Storage Overland Flow and Runoff 238mentioning
confidence: 99%
“…이러한 I/I는 하수량을 증 가시켜 하수처리시설 용량의 과부하, 시설규모 확대에 따른 예산낭비 및 유입농도 감소에 따른 처리효율 저하 등을 유발 한다 (Weiβ et al, 2002;Park et al, 2006;Karpf et al, 2011 산정이며, 산정식은 다음과 같다.…”
Section: 서 론unclassified
“…About 10% of the German treatment plants may suffer infiltration ingresses exceeding 50% of average dry weather flow (ATV-DVWK Arbeitsgruppe Fremdwasser 2003). Weiß et al (2002) state that for a combined sewer system the typical relation between sewage, stormwater and infiltration inflow at the wastewater treatment plant may equal 0.30/0.35/0.35, thus more than 2/3 of the water passing through the plant was originally non-or little-polluted.…”
Section: Introductionmentioning
confidence: 99%