Which Micropollutants in Water Environments Deserve More Attention Globally?

Environmental Science & Technology, Journal Year: 2021, Volume and Issue: 56(1), P. 13 - 29

Published: Dec. 21, 2021

Increasing chemical pollution of aquatic environments is a growing concern with global relevance. A large number organic chemicals are termed as "micropollutants" due to their low concentrations, and long-term exposure micropollutants may pose considerable risks organisms human health. In recent decades, numerous treatment methods technologies have been proposed remove in water, typically several were chosen target pollutants evaluate removal efficiencies. However, it often unclear whether toxicity occurrence levels frequencies enable them contribute significantly the overall environments. This review intends answer an important lingering question: Which or class deserve more attention globally should be removed higher priority? Different risk-based prioritization approaches used address this question. The risk quotient (RQ) method was found feasible approach prioritize scale its relatively simple assessment procedure extensive use. total 83 case studies using RQ past decade compiled, 473 compounds that selected by screening 3466 three broad classes (pharmaceuticals personal care products (PPCPs), pesticides, industrial chemicals) (RQ > 0.01). To determine importance, we propose surrogate, is, weighted average (WARQ). WARQ integrates intensity frequency achieve comprehensive priority determination. Through metadata analysis, recommend ranked list 53 micropollutants, including 36 PPCPs (e.g., sulfamethoxazole ibuprofen), seven pesticides heptachlor diazinon), 10 perfluorooctanesulfonic acid 4-nonylphenol) for management remediation efforts. One caveat importance does not consider transformation (including disinfection byproducts) new forms antibiotic resistance genes microplastics), directly applicable specific region country. Also, needs mentioning there might no best toward question, hopefully can act small step better answer.

Language: Английский

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Toward Selective Oxidation of Contaminants in Aqueous Systems

Environmental Science & Technology, Journal Year: 2021, Volume and Issue: 55(21), P. 14494 - 14514

Published: Oct. 20, 2021

The presence of diverse pollutants in water has been threating human health and aquatic ecosystems on a global scale. For more than century, chemical oxidation using strongly oxidizing species was one the most effective technologies to destruct ensure safe clean supply. However, removal increasing amount with higher structural complexity, especially emerging micropollutants trace concentrations complicated matrix, requires excessive dosage oxidant and/or energy input, resulting low cost-effectiveness possible secondary pollution. Consequently, it is practical significance but scientifically challenging achieve selective interest for decontamination. Currently, there are variety examples concerning aqueous systems. systematic understanding relationship between origin selectivity its applicable treatment scenarios, as well rational design catalyst catalytic oxidation, still lacking. In this critical review, we summarize state-of-the-art strategies decontamination probe origins selectivity, that is, from reactivity either oxidants or target pollutants, arising accessibility via adsorption size exclusion, due interfacial electron transfer process enzymatic oxidation. Finally, challenges perspectives briefly outlined stimulate future discussion decontamination, particularly toward application real scenarios.

Language: Английский

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State-of-the-art recent applications of layered double hydroxides (LDHs) material in Fenton-based oxidation processes for water and wastewater treatment

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 474, P. 145511 - 145511

Published: Aug. 19, 2023

Language: Английский

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UV/chlorine advanced oxidation processes for degradation of contaminants in water and wastewater: A comprehensive review

Journal of environmental chemical engineering, Journal Year: 2022, Volume and Issue: 10(3), P. 107508 - 107508

Published: March 9, 2022

Language: Английский

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A review of chloride ions removal from high chloride industrial wastewater: Sources, hazards, and mechanisms

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 353, P. 120184 - 120184

Published: Feb. 1, 2024

Language: Английский

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UV-induced photodegradation of emerging para-phenylenediamine quinones in aqueous environment: Kinetics, products identification and toxicity assessments

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 465, P. 133427 - 133427

Published: Jan. 5, 2024

Language: Английский

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Multi-angle comparison of UV/chlorine, UV/monochloramine, and UV/chlorine dioxide processes for water treatment and reuse

Water Research, Journal Year: 2022, Volume and Issue: 217, P. 118414 - 118414

Published: April 6, 2022

Language: Английский

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The noteworthy chloride ions in reclaimed water: Harmful effects, concentration levels and control strategies

Water Research, Journal Year: 2022, Volume and Issue: 215, P. 118271 - 118271

Published: March 8, 2022

Language: Английский

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Facile low temperature reflux synthesis of Bi self-doped Bi2MoO6 and construction of CaFe2O4/Bi2MoO6 0D QD-2D p-n heterojunction photocatalyst for efficient bisphenol A degradation and Cr(VI) reduction

Applied Surface Science, Journal Year: 2022, Volume and Issue: 611, P. 155607 - 155607

Published: Nov. 7, 2022

Language: Английский

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The status of potable water reuse implementation

Water Research, Journal Year: 2022, Volume and Issue: 214, P. 118198 - 118198

Published: Feb. 15, 2022

A review of the current status direct and indirect potable water reuse (DPR/IPR) implementation has been conducted, focusing on regulatory practical aspects with reference to most recent published literature. The encompasses (a) principal contaminant types, their required removal methods by which concentration is monitored, (b) approaches stipulations in assessing/ratifying treatment schemes maintaining treated quality, (c) existing full-scale installations. Analytical discussed include established in-line monitoring tools, such as turbidity measurement, more polymerase chain reaction (PCR)-based assay for microbial detection. key risk assessment tools quantitative (QMRA) safety plans (WSPs) are considered relation use selecting/ratifying schemes, components from 40 IPR/DPR installations summarised. Five specific detail. reveals:Whilst there a number ongoing projects where RO not used because challenge imposed disposal concentrate, prevalence sequential RO-UV combination implies importance quantifying impact process upsets these unit operations.

Language: Английский

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