Balancing water quality and flows in combined sewer systems using real-time control

Troutman, Sara C.; Love, Nancy G.; Kerkez, Branko

doi:10.1039/c9ew00882a

Cited by 27 publications

(34 citation statements)

References 40 publications

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“…Key: +, storm water and untreated wastewater were combined and released directly into river; *, storm water and treated wastewater were combined and released into environment (reproduced from Munro et al 2019) researchers have developed predictive models to minimise CSO discharges (Zhao et al 2019;Snodgrass et al 2018;Rathnayake and Faisal Anwar 2019). Troutman et al (2020) proposed a load-balancing algorithm to control storage assets within the catchment to improve flow dynamics at the WTP. This is facilitated with the use of wireless technologies and autonomous control of gates, valves and pumps within the sewer network.…”

Section: Mitigation and Treatment Strategies For Emerging Contaminants In Combined Sewer Overflowsmentioning

confidence: 99%

“…Several researchers have developed predictive models to minimise CSO discharges (Zhao et al 2019 ; Snodgrass et al 2018 ; Rathnayake and Faisal Anwar 2019 ). Troutman et al ( 2020 ) proposed a load-balancing algorithm to control storage assets within the catchment to improve flow dynamics at the WTP. This is facilitated with the use of wireless technologies and autonomous control of gates, valves and pumps within the sewer network.…”

Section: Mitigation and Treatment Strategies For Emerging Contaminants In Combined Sewer Overflowsmentioning

confidence: 99%

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A review of combined sewer overflows as a source of wastewater-derived emerging contaminants in the environment and their management

Petrie

2021

Environ Sci Pollut Res

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Emerging contaminants such as pharmaceuticals, illicit drugs and personal care products can be released to the environment in untreated wastewater/stormwater mixtures following storm events. The frequency and intensity of combined sewer overflows (CSOs) has increased in some areas due to increasing urbanisation and climate change. Therefore, this review provides an up-to-date overview on CSOs as an environmental source of emerging contaminants. Other than compounds with high removal, those chiral species subject to enantioselective changes (i.e. degradation or inversion) during wastewater treatment can be effective markers of CSO discharge in the environment. A proposed framework for the selection of emerging contaminants as markers of CSOs is outlined. Studies have demonstrated that CSOs can be the main source of emerging contaminants with high removal efficiency during wastewater treatment (e.g. > 90%). However, the impact of CSOs on the environment is location specific and requires decision-making on their appropriate management at catchment level. This process would be aided by further studies on CSOs which incorporate the monitoring of emerging contaminants and their effects in the environment with those more routinely monitored pollutants (e.g. pathogens and priority substances). Mitigation and treatment strategies for emerging contaminants in CSOs are also discussed.

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Section: Mitigation and Treatment Strategies For Emerging Contaminants In Combined Sewer Overflowsmentioning

confidence: 99%

Section: Mitigation and Treatment Strategies For Emerging Contaminants In Combined Sewer Overflowsmentioning

confidence: 99%

A review of combined sewer overflows as a source of wastewater-derived emerging contaminants in the environment and their management

Petrie

2021

Environ Sci Pollut Res

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“…Strategic retention of stormwater helps to reduce contaminant loads by enhancing sedimentation and reducing downstream erosion (Kerkez et al., 2016). Real‐time control of sewer systems may also improve the treatment capacity of receiving wastewater treatment plants by removing suspended solids and limiting inflows to sustainable levels (Troutman et al., 2020). While real‐time control promises to help reverse the impacts of urbanization on river health, effective control is predicated on an accurate understanding of system states.…”

Section: Discussionmentioning

confidence: 99%

Observability‐Based Sensor Placement Improves Contaminant Tracing in River Networks

Bartos

Kerkez

2021

Water Resources Research

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Global river health is in a state of crisis. In the United States, roughly 46% of river length is classified as being in poor biological condition (US EPA, 2017). Survey results indicate similar trends worldwide (Vörösmarty et al., 2010). The main drivers of surface water impairment are nonpoint-source pollutants like sewage, nutrients, and sediments (Rowny & Stewart, 2012). Sewer overflows release pathogens that are attributable to roughly 3,400-5,600 cases of illness annually in the United States (US EPA, 2004). At the same time, excessive nutrient loads from agriculture result in harmful algal blooms that impair aquatic ecosystems and render water unsafe to drink (

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“…Maintenance of water, sanitation and wastewater infrastructure is a major sustainability issue 105 . It is increasingly acknowledged that RAS could play a pivotal role in how these systems are monitored and managed 106 , including improving drinking water 107 , addressing water quality issues associated with sewerage systems 108 and monitoring and managing diverse aspects of stormwater predictions and flows 109 . Participants therefore concluded that automated monitoring and management of water infrastructure could lead to a reduction in pollution incidents, improve water quality and reduce flooding 110,111 .…”

Section: Water and Floodingmentioning

confidence: 99%

A global horizon scan of the future impacts of robotics and autonomous systems on urban ecosystems

et al. 2021

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W e are currently witnessing the fourth industrial revolution 1 . Technological innovations have altered the way in which economies operate and how people interact with built, social and natural environments. One area of transformation is the emergence of robotics and autonomous systems (RAS), defined as technologies that can sense, analyse, interact with and manipulate their physical environment 2 . RAS include unmanned aerial vehicles (drones), self-driving cars, robots able to repair infrastructure, and wireless sensor networks used for monitoring. RAS therefore have a large range of potential applications, such as autonomous transport, waste collection, infrastructure maintenance and repair, policing 2,3 and precision agriculture 4 (Fig. 1). RAS have already revolutionized how environmental data are collected 5 and how species populations are monitored for conservation 6 and/or control 7 . Globally, the RAS market is projected to grow from $6.2 billion in 2018 to $17.7 billion in 2026 8 .Concurrent with this technological revolution, urbanization continues at an unprecedented rate. By 2030, an additional 1.2 million km 2 of the planet's surface will be covered by towns and cities, with ~90% of this development happening in Africa and

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Balancing water quality and flows in combined sewer systems using real-time control

Abstract: An open-source control algorithm for combined sewers demonstrates how treatment plant benefits can be balanced with operation of the collection system.

Cited by 27 publications

References 40 publications

A review of combined sewer overflows as a source of wastewater-derived emerging contaminants in the environment and their management

A review of combined sewer overflows as a source of wastewater-derived emerging contaminants in the environment and their management

Observability‐Based Sensor Placement Improves Contaminant Tracing in River Networks

A global horizon scan of the future impacts of robotics and autonomous systems on urban ecosystems

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