Constructed wetlands for combined sewer overflow treatment: A state-of-the-art review

Rizzo, Anacleto; Tondera, Katharina; Palfy, T.G.; Dittmer, Ulrich; Meyer, Daniel; Schreiber, Christiane; Zacharias, Nicole; Ruppelt, Jan; Eßer, Dirk; Molle, Pascal; Troesch, Stéphane; Masi, Fabio

doi:10.1016/j.scitotenv.2020.138618

Cited by 64 publications

(29 citation statements)

References 59 publications

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“…The malfunctioning of CSOs can cause repeated contamination of receiving surface waters, and it is not uncommon even in sewages of many European countries (Rizzo et al, 2020) and United States (U.S. Environmental Protection Agency (EPA), 2004).…”

Section: Presence and Infectivity Of Sars-cov-2 In Surface Watersmentioning

confidence: 99%

Presence and infectivity of SARS-CoV-2 virus in wastewaters and rivers

Rimoldi

Stefani

Gigantiello

et al. 2020

Science of The Total Environment

440

401

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SARS-CoV-2 RNA presence and infectivity in wastewaters and receptors was assessed. • Viral RNA was detectable in the inflow but not in the outflow wastewaters. • Viral RNA was present in receptors due to sewage overflows or inefficient treatment. • SARS-CoV-2 infectivity was null both in wastewaters and receptors. • A precautionary approach in the assessment of contagious risk is advocated.

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Section: Presence and Infectivity Of Sars-cov-2 In Surface Watersmentioning

confidence: 99%

Presence and infectivity of SARS-CoV-2 virus in wastewaters and rivers

Rimoldi

Stefani

Gigantiello

et al. 2020

Science of The Total Environment

440

401

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“…Green infrastructures were chosen and sized following some of the most successful state-of-the art approaches used for CSO treatment with CWs [13]. Alternative 2.1 adopted the French approach, i.e., a single stage vertical subsurface flow constructed wetland (VF) with a net area of 3600 m 2 and a total gross areal footprint of 7300 m 2 .…”

Section: Alternative Definition and Sizingmentioning

confidence: 99%

“…Alternative 2.3 also considered the Italian approach, but it was designed in a new park, following the example of the Gorla Maggiore Water Park [10,11]; the sizes of the VF and the FWS were the same as in Alternative 2.2, while the required total gross areal footprint was estimated equal to 19,750 m 2 . All the green infrastructures were assumed to provide the same high CSO treatment performance (TSS > 90%, BOD 5 50-70%), in line with recent state-of-the-art evidence [13].…”

Section: Alternative Definition and Sizingmentioning

confidence: 99%

“…Moreover, Reynaud et al [12] registered a higher willingness to pay for green infrastructure compared to grey infrastructure on the same site, even greater if the green infrastructure was included in a park area. The success of the Gorla Maggiore Water Park convinced a key decision maker, the regional Public administrator (Lombardia Region), to spur the implementation of NBSs for CSO in the region, investing in other NBS plants and preparing a new regional regulation that invites to favor NBSs instead of grey solutions for CSO pollution control [13]; therefore, the Gorla Maggiore Water Park is an example of how a clear ES valuation could help to promote a real implementation of NBSs.…”

Section: Introductionmentioning

confidence: 99%

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Adjusted Unit Value Transfer as a Tool for Raising Awareness on Ecosystem Services Provided by Constructed Wetlands for Water Pollution Control: An Italian Case Study

Rizzo¹,

Conte

Masi³

2021

IJERPH

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Constructed wetlands (CWs) are nature-based solutions (NBS) for water pollution control that can also be designed to be multipurpose in terms of additional ecosystem services (ESs), such as biodiversity support and social benefits. Awareness about additional ESs of CWs can be raised with value transfer (VT) methods for ESs monetization, in particular, the simplified adjusted unit VT method. A multi-criteria analysis (MCA) was performed to compare grey and green infrastructure alternatives for the management of a combined sewer overflow in the Buccinasco town (Italy), in which the criteria related to ESs were monetized with an adjusted VT method (B£ST software). The results highlighted the potential interest in the implementation of the green infrastructure in a new urban park, due to the activation of additional ESs of interest, such as health and recreational aspects. The results were also confirmed by a sensitivity analysis, which simulated the variation of preferences among different stakeholder groups (e.g., citizens, environmentalists). In conclusion, this work provided a transparent methodology to support decisions regarding green and grey infrastructure, allowing to evaluate additional ESs from the beginning of the decision stage with low cost and efforts.

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“…In this challenging context, the problem of contaminants spreading in the rural channel network becomes pivotal in order to study and implement innovative solutions for the control, management and treatment of CSO water [55,72]. The correct design of solutions that exploit the intrinsic self-purification proprieties of rural channels relies on the knowledge of pollutants concentration, propagation and dispersion along the network.…”

Section: Introductionmentioning

confidence: 99%

Evaluating longitudinal dispersion of scalars in rural channels of agro-urban environments

et al. 2021

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In agro-urban environments, the water resource conveyed by rural channels is susceptible to a gradual impoverishment due to the continuous combined sewer overflow release, constituting a pending and urgent issue for water management companies and the entire community. Reliable one-dimensional longitudinal dispersion coefficients D are required to model and study the hydrodynamics and water quality patterns at the scale of rural channel networks. Empirical formulas are usually adopted to estimate D but the accuracy in the prediction could be questionable. In order to identify which are the most suitable formulas to determine D in rural channels, field tracer measurements were carried out in three rural channels with typical geometry and configuration. The obtained D values were then compared with the most commonly used predicting formulas that the literature provides. The accuracy of the predictors was further checked by simulating different flow rates inside the tested channels by using a one-dimensional hydraulic model. Starting from the obtained results, indications and guidelines to choose the most suitable formulas to predict D in rural channels were provided. These indications should be followed when developing realistic quality models in the agro-urban environments, especially in those cases where direct measurements of the longitudinal dispersion coefficient D are not available.

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Constructed wetlands for combined sewer overflow treatment: A state-of-the-art review

Cited by 64 publications

References 59 publications

Presence and infectivity of SARS-CoV-2 virus in wastewaters and rivers

Presence and infectivity of SARS-CoV-2 virus in wastewaters and rivers

Adjusted Unit Value Transfer as a Tool for Raising Awareness on Ecosystem Services Provided by Constructed Wetlands for Water Pollution Control: An Italian Case Study

Evaluating longitudinal dispersion of scalars in rural channels of agro-urban environments

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