Impact of Short Duration Intense Rainfall Events on Sanitary Sewer Network Performance
Short duration intense rainfall causes an increase in rainfall derived infiltration and inflow (RDII) into aging sewer networks, which leads to Sanitary Sewer Overflows (SSOs). This study presents a generalised framework for assessing and mitigating the impacts of intense rainfall on sanitary sewer...
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doaj-bec07655070549c69b0b37ad8a7b8c1a2020-11-24T22:33:43ZengMDPI AGWater2073-44412017-03-019322510.3390/w9030225w9030225Impact of Short Duration Intense Rainfall Events on Sanitary Sewer Network PerformanceTasnim Nasrin0Ashok K. Sharma1Nitin Muttil2College of Engineering and Science, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, AustraliaCollege of Engineering and Science, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, AustraliaCollege of Engineering and Science, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, AustraliaShort duration intense rainfall causes an increase in rainfall derived infiltration and inflow (RDII) into aging sewer networks, which leads to Sanitary Sewer Overflows (SSOs). This study presents a generalised framework for assessing and mitigating the impacts of intense rainfall on sanitary sewer networks. The first part of the proposed framework involves a detailed hydraulic modelling to evaluate the performance of the sewer network. The second part deals with the development of SSO mitigation strategies based on Water Sensitive Urban Design (WSUD) approaches. This paper also demonstrates the application of the first part of the proposed framework for a case study catchment in Melbourne, Australia. The hydraulic performance of the case study sewer network during a wet and a dry year is presented. The analysis found that for the wet year, 11 manholes had sewer overflows, whereas 53 of 57 manholes in the network of 3.2 km had surcharges. Such a study will benefit the water authorities to develop mitigation strategies for controlling SSOs in their sewer systems.http://www.mdpi.com/2073-4441/9/3/225intense rainfall eventsrainfall derived infiltration and inflowsanitary sewer overflowsmitigation strategieswater sensitive urban design |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tasnim Nasrin Ashok K. Sharma Nitin Muttil |
spellingShingle |
Tasnim Nasrin Ashok K. Sharma Nitin Muttil Impact of Short Duration Intense Rainfall Events on Sanitary Sewer Network Performance Water intense rainfall events rainfall derived infiltration and inflow sanitary sewer overflows mitigation strategies water sensitive urban design |
author_facet |
Tasnim Nasrin Ashok K. Sharma Nitin Muttil |
author_sort |
Tasnim Nasrin |
title |
Impact of Short Duration Intense Rainfall Events on Sanitary Sewer Network Performance |
title_short |
Impact of Short Duration Intense Rainfall Events on Sanitary Sewer Network Performance |
title_full |
Impact of Short Duration Intense Rainfall Events on Sanitary Sewer Network Performance |
title_fullStr |
Impact of Short Duration Intense Rainfall Events on Sanitary Sewer Network Performance |
title_full_unstemmed |
Impact of Short Duration Intense Rainfall Events on Sanitary Sewer Network Performance |
title_sort |
impact of short duration intense rainfall events on sanitary sewer network performance |
publisher |
MDPI AG |
series |
Water |
issn |
2073-4441 |
publishDate |
2017-03-01 |
description |
Short duration intense rainfall causes an increase in rainfall derived infiltration and inflow (RDII) into aging sewer networks, which leads to Sanitary Sewer Overflows (SSOs). This study presents a generalised framework for assessing and mitigating the impacts of intense rainfall on sanitary sewer networks. The first part of the proposed framework involves a detailed hydraulic modelling to evaluate the performance of the sewer network. The second part deals with the development of SSO mitigation strategies based on Water Sensitive Urban Design (WSUD) approaches. This paper also demonstrates the application of the first part of the proposed framework for a case study catchment in Melbourne, Australia. The hydraulic performance of the case study sewer network during a wet and a dry year is presented. The analysis found that for the wet year, 11 manholes had sewer overflows, whereas 53 of 57 manholes in the network of 3.2 km had surcharges. Such a study will benefit the water authorities to develop mitigation strategies for controlling SSOs in their sewer systems. |
topic |
intense rainfall events rainfall derived infiltration and inflow sanitary sewer overflows mitigation strategies water sensitive urban design |
url |
http://www.mdpi.com/2073-4441/9/3/225 |
work_keys_str_mv |
AT tasnimnasrin impactofshortdurationintenserainfalleventsonsanitarysewernetworkperformance AT ashokksharma impactofshortdurationintenserainfalleventsonsanitarysewernetworkperformance AT nitinmuttil impactofshortdurationintenserainfalleventsonsanitarysewernetworkperformance |
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