Monitoring (micro-)pollutants in wastewater treatment plants: Comparing discharges in wet- and dry-weather DOI Creative Commons
Jessica Ianes, Beatrice Cantoni, Fabio Polesel

et al.

Environmental Research, Journal Year: 2024, Volume and Issue: 263, P. 120132 - 120132

Published: Oct. 9, 2024

Municipal wastewater treatment plants (WWTPs) are crucial for maintaining good quality of surface water, limiting environmental pollution. However, during wet-weather events, WWTPs become an important point-source discharge due to the activation bypass, which releases a mix untreated and stormwater. This work aims assess how WWTP discharges (effluent bypass) impact on receiving water body dry- wet-weather, monitoring 78 pollutants (7 conventional pollutants, 19 heavy metals, 52 micropollutants) in each stream dry-weather, effluent bypass wet-weather), including influent dry-weather comparison. The occurrence, concentration levels variability, risk were addressed, with specific focus high-resolution (up 20-min) sampling based expected relevant temporal dynamicity. A wider range occurred included undetected compounds influent. Besides, greater inter-events variability concentrations was observed, but smaller intra-event only some exhibiting distinct first-flush effect. To address challenge cost-effective monitoring, we explored applicability readily measurable parameters (total suspended solids electrical conductivity) as proxies micropollutants. Correlations between these pollutant groups suggest promising path further investigation broader application. magnitude rain event also affected levels, volume clearly affecting dilution. assessment revealed significantly higher associated compared effluent, especially terbutryn, highlighting urgency improved management strategies. Overall, this study highlights contribution from WWTPs, emphasizing importance high-frequency capture peak accurately risk.

Language: Английский

Are we underestimating stormwater? Stormwater as a significant source of microplastics in surface waters DOI

Mozim Shafi,

Ayan Lodh,

Medha Khajuria

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 465, P. 133445 - 133445

Published: Jan. 6, 2024

Language: Английский

Citations

34
Addressing the challenges of combined sewer overflows DOI Creative Commons
William Bernard Perry, Reza Ahmadian, Max Munday

et al.

Environmental Pollution, Journal Year: 2023, Volume and Issue: 343, P. 123225 - 123225

Published: Dec. 25, 2023

Europe's ageing wastewater system often combines domestic sewage with surface runoff and industrial wastewaters. To reduce the associated risk of overloading treatment works during storms, to prevent backing-up into properties, Combined Sewer Overflows (CSOs) are designed networks release excess discharge rivers or coastal waters without treatment. In view growing regulatory scrutiny increasing public concern about their excessive frequencies potential impacts on environments people, there is a need better understand these allow prioritisation cost-effective solutions.We review: i) chemical, physical biological composition CSOs discharges; ii) spatio-temporal variations in quantity, quality load overflows spilling receiving waters; iii) ecosystems economies. Despite investigations illustrating frequency CSOs, data spill loading pollutants too few reach representative conclusions, particularly for emerging contaminants. Studies appraising also scarce, especially contexts where multiple stressors affecting waters. Given costs addressing problems, but likely long-term gains (e.g. economic stimulation as well improvements biodiversity, ecosystem services, health wellbeing), we highlight here bolster evidence gaps. We advocate no-regrets options alleviate CSO problems taking consideration costs, carbon neutrality, benefit community well-being. Besides pragmatic, risk-based investment by utilities local authorities modernise systems, include more systemic thinking, linking policy makers, consumers, regulators, shift from issues integrated catchment solutions aim reducing contributions drainage water consumption; broader societal responsibilities example through improved regulation, behavioural changes consumption disposal waste networks, greater cost-sharing use.

Language: Английский

Citations

38
Review of trace organic chemicals in urban stormwater: Concentrations, distributions, risks, and drivers DOI Creative Commons
Kefeng Zhang, Zhaozhi Zheng, Lena Mutzner

et al.

Water Research, Journal Year: 2024, Volume and Issue: 258, P. 121782 - 121782

Published: May 16, 2024

Urban stormwater, increasingly seen as a potential water resource for cities and towns, contains various trace organic chemicals (TrOCs). This study, conducted through comprehensive literature review of 116 publications, provides detailed report on the occurrence, concentration distribution, health, ecological risks TrOCs, well impact land use rainfall characteristics their concentrations. The uncovers total 629 TrOCs detected at least once in urban including 228 pesticides, 132 pharmaceutical personal care products (PPCPs), 29 polycyclic aromatic hydrocarbons (PAHs), 30 per- polyfluorinated substances (PFAS), 28 flame retardants, 24 plasticizers, 22 polychlorinated biphenyls (PCBs), nine corrosion inhibitors, 127 other industrial chemicals/intermediates/solvents. Concentration distributions were explored, with best fit being log-normal distribution. Risk assessment highlighted 82 high risk quotients (ERQ > 1.0) three health (HQ 1.0). Notably, 14 (including six PAHs, five flame-retardants, one plasticizer) out 68 analyzed significantly influenced by land-use type. Relatively weak relationships observed between pollutant concentrations, warranting further investigation. study essential information about occurrence offering valuable insights managing these emerging concern.

Language: Английский

Citations

10
Exploring the degradation of ofloxacin in sewer overflows by Fe(Ⅵ)/PMS, Fe(Ⅵ)/PDS, and Fe(Ⅵ)/SPC: Overlooked synergistic effect of oxidation and in-situ coagulation DOI
Qian Guo, Zuxin Xu, Wenhai Chu

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 488, P. 137333 - 137333

Published: Jan. 22, 2025

Language: Английский

Citations

1
Source-specific dynamics of organic micropollutants in combined sewer overflows DOI Creative Commons
Viviane Furrer, Andreas Froemelt, Heinz Singer

et al.

Water Research, Journal Year: 2025, Volume and Issue: 279, P. 123416 - 123416

Published: March 1, 2025

Language: Английский

Citations

1
Urban stormwater capture for water supply: look out for persistent, mobile and toxic substances DOI Creative Commons
Lena Mutzner, Kefeng Zhang, Richard G. Luthy

et al.

Environmental Science Water Research & Technology, Journal Year: 2023, Volume and Issue: 9(12), P. 3094 - 3102

Published: Jan. 1, 2023

Urban stormwater is a source of persistent, mobile and toxic substances, however the risk for water resources unknown.

Language: Английский

Citations

15
Policies on combined sewer overflows pollution control: A global perspective to inspire China and less developed countries DOI
Tao Wang, Yunhui Zhang,

Huaizheng Li

et al.

Critical Reviews in Environmental Science and Technology, Journal Year: 2023, Volume and Issue: 54(14), P. 1050 - 1069

Published: Dec. 6, 2023

Combined sewer overflows (CSOs) are of major concern for urban water environment restoration that draws worldwide attention. The enaction related policies, regulations, guidelines and criteria forms a crucial foundation CSO control management. Some developed countries, such as the US European leading management have relatively completed legislative framework. Despite great efforts made worldwide, existing combined systems severe illicit sanitary connections to storm sewers still result in wet-weather flows (UWWF) pollution which is similar or even more detrimental than CSOs, deteriorating receiving bodies, particularly developing countries. This article aims review history evolution CSO-related permits, criteria, technical guidances measures typical countries guide UWWF latecomers. It was found has formed complete system from national policies states' practices proceeded green development stage. transitioned targets toward meeting quality standards. In comparison, Japan South Korea attach importance end-of-pipe treatment On this basis, recommendations were proposed long-term China. also expected enactment regulations less facing serious pollution.

Language: Английский

Citations

14
Application of a submerged photocatalytic membrane reactor with ultrafiltration membrane for ketoprofen removal during long term process: Impact of feed matrix DOI
Kacper Szymański, Joanna Grzechulska‐Damszel, Sylwia Mozia

et al.

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 59, P. 104953 - 104953

Published: Feb. 7, 2024

Language: Английский

Citations

6
Infancy of peracetic acid activation by iron, a new Fenton-based process: A review DOI Creative Commons
Iván Sciscenko, Davide Vione, Marco Minella

et al.

Heliyon, Journal Year: 2024, Volume and Issue: 10(5), P. e27036 - e27036

Published: Feb. 24, 2024

The exacerbated global water scarcity and stricter directives are leading to an increment in the recycled use, requiring development of new cost-effective advanced treatments provide safe population. In this sense, peracetic acid (PAA, CH

Language: Английский

Citations

5
Micropollutant concentration fluctuations in combined sewer overflows require short sampling intervals DOI Creative Commons
Viviane Furrer, Lena Mutzner, Christoph Ort

et al.

Water Research X, Journal Year: 2023, Volume and Issue: 21, P. 100202 - 100202

Published: Sept. 12, 2023

Combined sewer overflows (CSOs) are an important pathway of organic micropollutants from urban areas to open water bodies. Understanding the temporal dynamics these during overflow events is crucial for applying appropriate sampling methods and implementing effective management strategies. Yet, little known about in CSOs, because most studies report concentrations single grab samples or event mean (EMCs). With unique high resolution measurements (3 min), we show real polar CSOs one small (2,700 people: P) large (159,000 catchment, two micropollutant categories: (i) 33 municipal wastewater (ii) 13 surface runoff. The concentration depend on substance source catchment size. Indoor substances such as pharmaceuticals with changes 1 2 orders magnitude within 9 min CSO catchment. In contrast, outdoor at all display considerably lower variation. We tested various time-proportional strategies assess range error when estimating EMCs. recommend interval 3 capture indoor catchments. results highlight that both future monitoring campaigns planning wet-weather treatment systems will benefit resolutions, not only understand but also minimize errors estimated

Language: Английский

Citations

11