Water quality variables and pollution sources shaping stream macroinvertebrate communities

The Science of The Total Environment, Journal Year: 2017, Volume and Issue: 587-588, P. 1 - 10

Published: Feb. 9, 2017

Language: Английский

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Polymer-clay composite geomedia for sorptive removal of trace organic compounds and metals in urban stormwater

Water Research, Journal Year: 2019, Volume and Issue: 157, P. 454 - 462

Published: April 3, 2019

Language: Английский

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

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 727, P. 138618 - 138618

Published: April 16, 2020

Language: Английский

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Chemical characterization of urban stormwater: Traditional and emerging contaminants

The Science of The Total Environment, Journal Year: 2021, Volume and Issue: 813, P. 151887 - 151887

Published: Nov. 23, 2021

Increases in urbanization have led to increased stormwater runoff and mobilization of pollutants from urban watersheds. Discharge these often leads contamination receiving water bodies. Chemical characterization is necessary gain deeper insights into the ecological impacts evaluate parameters that influence possible treatment technologies. This study assessed event mean concentrations particle size fractions field studies reported national/international quality databases (The National Stormwater Quality The Best Management Practices databases) peer-reviewed literature. includes statistical evaluation probability distribution, consideration dissolved particulate-bound focuses on partitioning speciation behavior. Solids, nutrients, metals, organic pollutants, bacterial pathogen indicators were evaluated. A significant fraction phosphorus, metals are particle-bound. Results demonstrated predominantly present as either inner-sphere or electrostatic complexes with matter. provides a comprehensive overview myriad found starting point for addressing ubiquitous emerging contaminants. Finally, research needs further detailed identified.

Language: Английский

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

Environmental Science and Pollution Research, Journal Year: 2021, Volume and Issue: 28(25), P. 32095 - 32110

Published: April 29, 2021

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

Language: Английский

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Azole fungicides: (Bio)degradation, transformation products and toxicity elucidation

The Science of The Total Environment, Journal Year: 2021, Volume and Issue: 802, P. 149917 - 149917

Published: Aug. 26, 2021

The increasing consumption of azole antifungal agents leads to their uncontrolled release into the environment. Therefore, it is crucial remove residues from natural ecosystems. This study aimed examine biological and chemical degradation four typical fungicides: fluconazole (Fc), clotrimazole (Cl), climbazole (Cb), epoxiconazole (Ep). biodegradation was investigated using activated sludge two novel Gram-negative bacterial strains. experiments assess efficiency fungicides removal through UV treatment, Fenton reaction, a combination these methods. Transformation products Cb, Ep, Cl photocatalytic were identified by mass spectrometry. In addition, AlamarBlue® Assay MTT allowed careful evaluation toxicity derivatives transformation towards newly isolated strains, Stenotrophomonas maltophilia AsPCl2.3 Pseudomonas monteilii LB2. Among all fungicides, Cb most susceptible while Fc, basically resistant biodegradation. Ep showed significant biosorption on sludge. Under optimized photolysis conditions, Cl, significantly higher than that reaction supported UV-irradiation offered best results elimination. After 1 min experiment, almost completely removed rates reached an average 60%. proposed main route during includes halogen atoms substitution hydroxyl moieties. final product imidazole or triazole. Azole differently affected metabolic activity bacteria. intermediates lower parent compounds. findings help better understand environmental impact degradation, toxicity. They also stress need for reducing

Language: Английский

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Biochar-mediated removal of pharmaceutical compounds from aqueous matrices via adsorption

Waste Disposal & Sustainable Energy, Journal Year: 2022, Volume and Issue: 5(1), P. 37 - 62

Published: Dec. 16, 2022

Language: Английский

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Normalisation of SARS-CoV-2 concentrations in wastewater: The use of flow, electrical conductivity and crAssphage

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 865, P. 161196 - 161196

Published: Dec. 26, 2022

Over the course of Corona Virus Disease-19 (COVID-19) pandemic in 2020–2022, monitoring severe acute respiratory syndrome coronavirus 2 ribonucleic acid (SARS-CoV-2 RNA) wastewater has rapidly evolved into a supplementary surveillance instrument for public health. Short term trends (2 weeks) are used as basis policy and decision making on measures dealing with pandemic. Normalisation is required to account dilution rate domestic that can strongly vary due time- location-dependent sewer inflow runoff, industrial discharges extraneous waters. The standard approach sewage normalisation using flow measurements, although based not effective case volume sampled does match produced. In this paper, two alternative methods, electrical conductivity crAssphage have been studied compared measurements. For this, total 1116 24-h flow-proportional samples collected between September 2020 August 2021 at nine locations. addition, 221 stool analysed determine daily load per person. Results show that, shedding rates person greatly, population-level loads day were constant over time similar all catchments. Consequently, be quantitative biomarker populations above 5595 persons. Electrical particularly suitable relative dry weather concentrations. overall conclusion necessary reliably short-term virus circulation, enhanced and/or measurement quality check.

Language: Английский

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Emerging contaminants in biosolids: Presence, fate and analytical techniques

Emerging contaminants, Journal Year: 2022, Volume and Issue: 8, P. 162 - 194

Published: Jan. 1, 2022

Emerging contaminants (ECs) represent a small fraction of the large chemical pollution puzzle where wide variety potentially hazardous chemicals reach environment, and new compounds are continuously synthesized released in wastewater treatment plants ultimately effluent biosolids. ECs have been classified into various categories; however, this article focuses on fate major categories, namely pharmaceutical personal care products (PPCPs), per-and poly-fluoroalkyl substances (PFAS), flame retardants, surfactants, endocrine-disrupting (EDCs), microplastics (MPs). These when discharged to sewer downstream can undergo further transformations either degrade, persist or convert by-products which potential some cases be more hazardous. Because dangerous impacts availability these information behavior pollutants is highly important develop strategies, such as regulation imported Australia Australian consumer goods environmental policies mitigate them sustainable way. Moreover, advanced technologies required for detection identification novel emerging environment at ultra low levels. The application chromatographic techniques coupled with mass spectroscopy has provided attractive breakthroughs detect contaminants. However, it crucially understand sensitivity robustness analytical dealing complex matrices In addition, most literature was focused selected family existing reviews paid less attention examine formation metabolites during process their ecosystem. This review presents an overview presence different classes around world, quantification from sources like (influents effluents), sludge transformation process, intermediate also critically discussed. Three steps analysis include sample preparation, extraction clean-up, analysis; hence, methods employed thoroughly discussed, advantages limitations highlighted. comprehensive believed enhance understanding sewage would useful readers relevant communities stakeholders investigate maximize destruction ECs.

Language: Английский

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Removal of emerging contaminants in conventional and advanced biological wastewater treatment plants in India-a comparison of treatment technologies

Environmental Research, Journal Year: 2022, Volume and Issue: 218, P. 115012 - 115012

Published: Dec. 9, 2022

Language: Английский

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