Sanitary sewer ≈ Sanitary sewer
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What Is Nuisance Flooding? Defining and Monitoring an Emerging Challenge Open
Nuisance flooding (NF) refers to low levels of inundation that do not pose significant threats to public safety or cause major property damage, but can disrupt routine day‐to‐day activities, put added strain on infrastructure systems such …
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Widespread, routine occurrence of pharmaceuticals in sewage effluent, combined sewer overflows and receiving waters Open
Research addressing the occurrence, fate and effects of pharmaceuticals in the aquatic environment has expanded rapidly over the past two decades, primarily due to the development of improved chemical analysis methods. Significant research…
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Pluvial flooding in urban areas: the role of surface drainage efficiency Open
Pluvial flooding in urban areas may derive from the limited or temporarily reduced efficiency of surface drainage, even when the underlying storm sewers are properly designed. This study focuses on the impact of uncertainties in the operat…
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Preliminary results of SARS-CoV-2 detection in sewerage system in Niterói municipality, Rio de Janeiro, Brazil Open
A Rede Genômica Fiocruz é formada por especialistas de todas as unidades da Fundação no país e de institutos parceiros que se empenham diariamente em gerar dados mais robustos sobre o comportamento do SARS-Cov-2 e contribuir para um melhor…
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Impact of in-Sewer Degradation of Pharmaceutical and Personal Care Products (PPCPs) Population Markers on a Population Model Open
A key uncertainty of wastewater-based epidemiology is the size of the population which contributed to a given wastewater sample. We previously developed and validated a Bayesian inference model to estimate population size based on 14 popul…
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Estimating Safely Managed Sanitation in Urban Areas; Lessons Learned From a Global Implementation of Excreta-Flow Diagrams Open
The urban population will rise to 6.7 billion by 2050. The United Nations has committed to provide everyone with safely managed sanitation, but there is limited understanding of the scale of the challenge. This paper describes a methodolog…
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Where to Find Water Pipes and Sewers?—On the Correlation of Infrastructure Networks in the Urban Environment Open
Urban water infrastructure, i.e., water supply and sewer networks, are underground structures, implying that detailed information on their location and features is not directly accessible, frequently erroneous, or missing. For public use, …
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Evaluation of Drinking Water Quality in Urban Areas of Pakistan: A Case Study of Southern Lahore Open
A study was carried out to evaluate the quality of water supplied by Water and Sanitation Agency (WASA), Lahore. A portion of southern Lahore was selected for this purpose. Water samples from four different sources (tubewells) and eight ho…
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Review on Computer Aided Sewer Pipeline Defect Detection and Condition Assessment Open
Physical and operational inspection of sewer pipelines is critical to sustaining an acceptable level of system serviceability. Emerging inspection tools in addition to developments in sensor and lens technologies have facilitated sewer con…
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A risk assessment model of a sewer pipeline in an underground utility tunnel based on a Bayesian network Open
A utility tunnel typically houses various types of urban lifelines. As one of the assembled pipelines in a utility tunnel, the sewer pipeline is of great importance for city life. For example, leakage of toxic and combustible gases and a s…
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The effect of inclusion of inlets in dual drainage modelling Open
This is the author accepted manuscript. The final version is available from Elsevier via the DOI in this record
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Sewer Pipes Condition Prediction Models: A State-of-the-Art Review Open
Wastewater infrastructure systems deteriorate over time due to a combination of aging, physical, and chemical factors, among others. Failure of these critical structures cause social, environmental, and economic impacts. To avoid such prob…
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Semi- vs. Fully-Distributed Urban Stormwater Models: Model Set Up and Comparison with Two Real Case Studies Open
Urban stormwater models can be semi-distributed (SD) or fully distributed (FD). SD models are based on subcatchment units with various land use types, where rainfall is applied and runoff volumes are estimated and routed. FD models are bas…
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Towards autonomous inspection of concrete deterioration in sewers with legged robots Open
The regular inspection of sewer systems is essential to assess the level of degradation and to plan maintenance work. Currently, human inspectors must walk through sewers and use their sense of touch to inspect the roughness of the floor a…
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A review on the durability of PVC sewer pipes: research vs. practice Open
Polyvinyl chloride (PVC) has become one of the dominant construction materials for sewer systems over the past decades, as a result of its reputed merits. However, since PVC sewer pipes have operated for decades in a hostile environment, c…
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A framework for synthetic image generation and augmentation for improving automatic sewer pipe defect detection Open
Sewer pipes are essential infrastructure for discharging wastewater. Regular pipe inspection is necessary to prevent malfunction of sewer systems, for which closed-circuit television (CCTV) crawlers are commonly used to capture images of t…
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Estimated discharge of antibiotic-resistant bacteria from combined sewer overflows of urban sewage system Open
Yearly discharge of antibiotic-resistant bacteria (ARB) from combined sewer overflow (CSO) was estimated. The volume of CSO was estimated from operating data of the pumping station. In the target sewer catchment, 23% of the total of the vo…
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Spatial heterogeneity assessment of factors affecting sewer pipe blockages and predictions Open
Efficient management of sewer blockages requires increased preventive maintenance planning. Conventional approaches to the management of blockages in sewer pipe networks constitute largely unplanned maintenance stemming from a lack of adeq…
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Localisation of Unmanned Underwater Vehicles (UUVs) in Complex and Confined Environments: A Review Open
The inspection of aquatic environments is a challenging activity, which is made more difficult if the environment is complex or confined, such as those that are found in nuclear storage facilities and accident sites, marinas and boatyards,…
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Lost in calibration: why people still do not calibrate their models, and why they still should – a case study from urban drainage modelling Open
From a scientific point of view, it is unquestioned that numerical models for technical systems need to be calibrated. However, in sufficiently calibrated models are still used in engineering practice. Case studies in the scientific litera…
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Robust sensing suite for measuring temporal dynamics of surface temperature in sewers Open
Sewerage systems are paramount underground infrastructure assets for any nation. In most cities, they are old and have been exposed to significant microbial induced corrosion. It is a serious global problem as they pose threats to public h…
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Evaluation of the Durability and Performance of FBG-Based Sensors for Monitoring Moisture in an Aggressive Gaseous Waste Sewer Environment Open
Measurements of the rate of corrosion in concrete sewers need to take into consideration the humidity in the environment and thus its accurate measurement becomes critically important. Introducing a novel approach to do so, tailored Fiber …
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Strategies for Improving Optimal Positioning of Quality Sensors in Urban Drainage Systems for Non-Conservative Contaminants Open
In the urban drainage sector, the problem of polluting discharges in sewers may act on the proper functioning of the sewer system, on the wastewater treatment plant reliability and on the receiving water body preservation. Therefore, the i…
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Wireless Underground Communications in Sewer and Stormwater Overflow Monitoring: Radio Waves through Soil and Asphalt Medium Open
Storm drains and sanitary sewers are prone to backups and overflows due to extra amount wastewater entering the pipes. To prevent that, it is imperative to efficiently monitor the urban underground infrastructure. The combination of sensor…
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Automated detection of fault types in CCTV sewer surveys Open
Sewers must be regularly inspected to prioritise effective maintenance, which can be an expensive and time-consuming process. This paper presents a methodology to automatically identify the type of a detected fault using raw closed circuit…
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Prediction of concrete corrosion in sewers with hybrid Gaussian processes regression model Open
A hybrid Gaussian Processes Regression (GPR) model is to approach the evolution of the corrosion rate and corrosion initiation time, thereby supporting the calculation of service life of sewers.
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Impact of Short Duration Intense Rainfall Events on Sanitary Sewer Network Performance Open
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 …
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Wastewater network infrastructure in public health: Applications and learnings from the COVID-19 pandemic Open
Accurate estimates of COVID-19 burden of infections in communities can inform public health strategy for the current pandemic. Wastewater based epidemiology (WBE) leverages sewer infrastructure to provide insights on rates of infection by …
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Experimental and modelling evaluations of sulfide formation in a mega-sized deep tunnel sewer system and implications for sewer management Open
Mega-sized deep tunnel sewer systems are indispensable infrastructures to convey the sewage and/or stormwater to the centralized sewage treatment works in large cities with dense populations and limited land. The rapid urbanization in Chin…
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The monitoring approaches and non-destructive testing technologies for sewer pipelines Open
Sewage pipe deterioration has been one of the factors causing huge asset losses and urban hazards worldwide. For more efficient and reliable management, a variety of monitoring and non-destructive testing techniques has been developed for …