Vacuum ultraviolet irradiation for reduction of the toxicity of wastewater towards mammalian cells: Removal mechanism, changes in organic compounds, and toxicity alternatives

Article Engineering, Environmental

Changes in toxicity and adsorbable organic bromine concentrations in ozonated reclaimed water irradiated with sunlight

De-Xiu Wu et al.

Summary: Irradiation with sunlight can effectively degrade adsorbable organic bromine (AOBr) and decrease the toxicity of ozonated reclaimed water. UV light is predominantly responsible for the degradation of AOBr and the decrease in toxicity.

WATER RESEARCH (2023)

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Article Multidisciplinary Sciences

Oxygen doping of cobalt-single-atom coordination enhances peroxymonosulfate activation and high-valent cobalt-oxo species formation

Qian-Yuan Wu et al.

Summary: A cobalt-single-atom catalyst with N/O dual coordination was synthesized by O-doping engineering and showed efficient activation of peroxymonosulfate (PMS) for water purification. The O-doped catalyst (Co-OCN) achieved a pollutant degradation kinetic constant 4.9 times higher than that of the catalyst without O-doping (Co-CN) and exhibited a dominant oxidation of pollutants through Co(IV)=O formation. The Co-OCN catalyst on carbon felt achieved continuous and efficient removal of micropollutants.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2023)

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Article Multidisciplinary Sciences

Hydrodynamic tearing of bacteria on nanotips for sustainable water disinfection

Lu Peng et al.

Summary: In this study, a nano-structured material is used to effectively kill bacteria in water through a hydrodynamic mechanism driven by mild water flow. This approach does not require additional energy supply and offers an efficient and low-cost system.

NATURE COMMUNICATIONS (2023)

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Review Chemistry, Multidisciplinary

UV/Chlorine Process: An Efficient Advanced Oxidation Process with Multiple Radicals and Functions in Water Treatment

Kaiheng Guo et al.

Summary: Due to the worsened global water quality, the presence of chemical and microbial contaminants in water raises serious concerns for human health. Therefore, it is crucial to identify and develop effective and environmentally friendly water treatment technologies to obtain clean water. This article focuses on the radical chemistry of UV/chlorine, an emerging advanced oxidation process (AOP), and its role in the abatement of contaminants.

ACCOUNTS OF CHEMICAL RESEARCH (2022)

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Article Green & Sustainable Science & Technology

Removal of disinfection byproducts and toxicity of chlorinated water by post-treatments of ultraviolet/hydrogen peroxide and ultraviolet/peroxymonosulfate

Wen-Cheng Huang et al.

Summary: This study investigated the removal of disinfection byproducts (DBPs) and toxicity of chlorinated water using post-treatments of UV/hydrogen peroxide (UV/H2O2) and UV/peroxymonosulfate (UV/PMS). The results showed that adding H2O2 or PMS improved the removal of nitrogenous DBPs and total organic chlorine (TOCl) compared to UV alone. However, the removal efficiency was reduced in the presence of bromide. UV/H2O2 was more effective in removing cytotoxicity and genotoxicity than UV/PMS. In the UV/PMS process, SO4'- was more efficient in removing toxicity than 'OH.

JOURNAL OF CLEANER PRODUCTION (2022)

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Article Environmental Sciences

Removal of methylisothiazolinone biocide from wastewater by VUV/UV advanced oxidation process: Kinetics, mechanisms and toxicity

Nan Huang et al.

Summary: Methylisothiazolinone (MIT) is efficiently degraded by vacuum ultraviolet (VUV)/ultraviolet (UV) irradiation, with the presence of .center dot & nbsp;OH as the main oxidant. The degradation efficiency of MIT under VUV/UV irradiation is higher than under UV irradiation, and is influenced by solution pH and the concentration of CO32- /HCO3-. The study also identified the main degradation mechanisms of MIT as sulfur atom oxidation and hydroxyl addition, with VUV/UV degradation being an effective method to remove MIT toxicity.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2022)

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Article Environmental Sciences

Dimethoate degradation by VUV/UV process: Kinetics, mechanism and economic feasibility

Zhengdi Wu et al.

Summary: The study showed that under VUV/UV treatment, the degradation rate of DMT is high and the toxicity of the solution is significantly reduced. The economic feasibility of the VUV/UV process for DMT removal in small-scale drinking water treatment is high.

CHEMOSPHERE (2021)

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Article Environmental Sciences

Quantitative assessment of the variability in chemical profiles from source apportionment analysis of PM10 and PM2.5 at different sites within a large metropolitan area

M. Manousakas et al.

Summary: This study aimed to assess the differences in chemical profiles of major anthropogenic and natural PM sources in two areas with varying levels of urbanization and traffic density in the same urban agglomeration. Statistical analysis tools including Pearson correlation and Standardized Identity Distance were used to quantify the similarity between source profiles. The study found high correlation in some sources (Mineral Dust, Biomass Burning, Sea Salt, Sulfates, Heavy Oil Combustion) but different results for Biomass Burning, highlighting the importance of using multiple tools for a thorough evaluation of source profile similarity.

ENVIRONMENTAL RESEARCH (2021)

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Review Environmental Sciences

Impacts of pre-oxidation on the formation of disinfection byproducts from algal organic matter in subsequent chlor(am)ination: A review

Feilong Dong et al.

Summary: This article reviews the impact of pre-oxidation on the formation of DBPs during chlor(am)ination, discussing the application of various pre-oxidation technologies and their effects on algal cells and AOM. Pre-oxidation can reduce the stability of algal cells, promote aggregation, and degrade AOM to reduce the potential for DBP formation during subsequent chlor(am)ination. The article also evaluates the applicability of different pre-oxidation processes and identifies future research needs.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

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Article Engineering, Environmental

Reduction of cytotoxicity and DNA double-strand break effects of wastewater by ferrate(VI): Roles of oxidation and coagulation

Qian-Yuan Wu et al.

Summary: Ferrate(VI) (Fe(VI)) effectively reduces the cytotoxicity and genotoxicity of secondary effluents by oxidizing and coagulating organic matter and heavy metals, alleviating oxidative stress in cells. The Fe(VI) treatment showed better performance in removing organic matter, cytotoxicity, and genotoxicity compared to ferric chloride, highlighting its potential in advanced wastewater treatment processes.

WATER RESEARCH (2021)

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Article Engineering, Environmental

Toxicity of Ozonated Wastewater to HepG2 Cells: Taking Full Account of Nonvolatile, Volatile, and Inorganic Byproducts

Qian-Yuan Wu et al.

Summary: This study found that ozonation of wastewater generates various toxic byproducts, with formaldehyde contributing the most to cytotoxicity and genotoxicity in the absence of bromide. However, ozonation generally increases the overall toxicity of wastewater, especially when bromide is present.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2021)

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Review Cell Biology

From Pinocytosis to Methuosis-Fluid Consumption as a Risk Factor for Cell Death

Markus Ritter et al.

Summary: The volumes of cells and their organelles are regulated by osmoregulatory processes. Cells respond to osmotic gradients by adjusting their volume, while cell death pathways can lead to either a decrease or increase in cell volume. Dysfunction in pinocytosis and macropinocytosis can result in cell swelling and fluid accumulation, ultimately leading to cell death.

FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY (2021)

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Article Environmental Sciences

Surrogates for the removal by ozonation of the cytotoxicity and DNA double-strand break effects of wastewater on mammalian cells

Ye Du et al.

ENVIRONMENT INTERNATIONAL (2020)

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Article Environmental Sciences

Comparison of ozonation and UV based oxidation as pre-treatment process for ultrafiltration in wastewater reuse: Simultaneous water risks reduction and membrane fouling mitigation

Mo Li et al.

CHEMOSPHERE (2020)

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Article Engineering, Environmental

Efficient heterogeneous activation of peroxymonosulfate by modified CuFe2O4 for degradation of tetrabromobisphenol A

Zhiqiang Chen et al.

CHEMICAL ENGINEERING JOURNAL (2020)

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Article Environmental Sciences

Vacuum ultraviolet irradiation for mitigating dissolved organic nitrogen and formation of haloacetonitriles

Pradabduang Kiattisaksiri et al.

ENVIRONMENTAL RESEARCH (2020)

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Article Engineering, Environmental

Non-volatile disinfection byproducts are far more toxic to mammalian cells than volatile byproducts

Qian-Yuan Wu et al.

WATER RESEARCH (2020)

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Article Engineering, Environmental

Degradation of carbamazepine by vacuum-UV oxidation process: Kinetics modeling and energy efficiency

Shumin Zhu et al.

JOURNAL OF HAZARDOUS MATERIALS (2019)

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Article Engineering, Chemical

Application of vacuum-ultraviolet (VUV) to degrade β-blocker propranolol in aquatic environment: Efficiency, kinetics, pathways and acute toxicity

Pengchao Xie et al.

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS (2019)

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Article Engineering, Environmental

Degradation of 1H-benzotriazole using vacuum ultraviolet: a prospective treatment method for micro-pollutants

Jinshao Ye et al.

WATER SCIENCE AND TECHNOLOGY (2019)

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Review Environmental Sciences

The utilization of reclaimed water: Possible risks arising from waterborne contaminants

Shenxi Deng et al.

ENVIRONMENTAL POLLUTION (2019)

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Article Engineering, Environmental

Underestimated risk from ozonation of wastewater containing bromide: Both organic byproducts and bromate contributed to the toxicity increase

Qian-Yuan Wu et al.

WATER RESEARCH (2019)

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Article Environmental Sciences

Inuence of major anions on the 185 nm advanced oxidation process - Sulphate, bicarbonate, and chloride

Laith Furatian et al.

CHEMOSPHERE (2018)

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Article Engineering, Environmental

Degradation of organic pollutants by Vacuum-Ultraviolet (VUV): Kinetic model and efficiency

Pengchao Xie et al.

WATER RESEARCH (2018)

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Article Biotechnology & Applied Microbiology

Hormones removal from municipal wastewater using ultrasound

Aliakbar Roudbari et al.

AMB EXPRESS (2018)

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Article Engineering, Environmental

Effect of sulfate radical-based oxidation pretreatments for mitigating ceramic UF membrane fouling caused by algal extracellular organic matter

Xiaoxiang Cheng et al.

WATER RESEARCH (2018)

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Article Engineering, Environmental

Effects of inorganics on the degradation of micropollutants with vacuum UV (VUV) advanced oxidation

Clara Duca et al.

JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING (2017)

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Review Environmental Sciences

CHO cell cytotoxicity and genotoxicity analyses of disinfection by-products: An updated review

Elizabeth D. Wagner et al.

JOURNAL OF ENVIRONMENTAL SCIENCES (2017)

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Article Engineering, Environmental

Evolution of molecular weight and fluorescence of effluent organic matter (EfOM) during oxidation processes revealed by advanced spectrographic and chromatographic tools

Zhiqiang Chen et al.

WATER RESEARCH (2017)

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Article Engineering, Environmental

VUV/UV/Chlorine as an Enhanced Advanced Oxidation Process for Organic Pollutant Removal from Water: Assessment with a Novel Mini-Fluidic VUV/UV Photoreaction System (MVPS)

Mengkai Li et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2016)

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Article Environmental Sciences

Removal of fluorescence and ultraviolet absorbance of dissolved organic matter in reclaimed water by solar light

Qianyuan Wu et al.

JOURNAL OF ENVIRONMENTAL SCIENCES (2016)

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Article Environmental Sciences

Assessing estrogenic activity and reproductive toxicity of organic extracts in WWTP effluents

Bo Li et al.

ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY (2015)

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Article Engineering, Environmental

Anti-estrogenic activity formation potential assessment and precursor analysis in reclaimed water during chlorination

Xin Tang et al.

WATER RESEARCH (2014)

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Review Engineering, Environmental

Vacuum-UV radiation at 185 nm in water treatment - A review

Kristin Zoschke et al.

WATER RESEARCH (2014)

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Article Engineering, Environmental

Decolourisation of secondary effluent by UV-mediated processes

P. Puspita et al.

CHEMICAL ENGINEERING JOURNAL (2011)

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Article Environmental Sciences

Degradation and reduction of acute toxicity of environmentally persistent perfluorooctanoic acid (PFOA) using VUV photolysis and TiO2 photocatalysis in acidic and basic aqueous solutions

Il-Hyoung Cho

TOXICOLOGICAL AND ENVIRONMENTAL CHEMISTRY (2011)

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Article Environmental Sciences

Effects of chlorination on the properties of dissolved organic matter and its genotoxicity in secondary sewage effluent under two different ammonium concentrations

Qian-Yuan Wu et al.

CHEMOSPHERE (2010)

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Review Oncology

γH2AX: a sensitive molecular marker of DNA damage and repair

L-J Mah et al.

LEUKEMIA (2010)

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Review Biochemistry & Molecular Biology

Oxidative-Dependent Integration of Signal Transduction with Intercellular Gap Junctional Communication in the Control of Gene Expression

Brad L. Upham et al.

ANTIOXIDANTS & REDOX SIGNALING (2009)

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Article Environmental Sciences

Photodegradation characteristics of PPCPs in water with UV treatment

Ilho Kim et al.

ENVIRONMENT INTERNATIONAL (2009)

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Review Chemistry, Physical

Vacuum-ultraviolet photolysis of aqueous reaction systems

MG Gonzalez et al.

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS (2004)

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Article Engineering, Environmental

Fluorescence excitation - Emission matrix regional integration to quantify spectra for dissolved organic matter

W Chen et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2003)

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Article Engineering, Chemical

Advanced treatment for municipal wastewater reuse in agriculture. UV disinfection: parasite removal and by-product formation

L Liberti et al.

DESALINATION (2003)

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Review Biochemical Research Methods

Understanding and modulating apoptosis in industrial cell culture

HA Laken et al.

CURRENT OPINION IN BIOTECHNOLOGY (2001)

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Vacuum ultraviolet irradiation for reduction of the toxicity of wastewater towards mammalian cells: Removal mechanism, changes in organic compounds, and toxicity alternatives

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