Towards microplastics contribution for membrane biofouling and disinfection by-products precursors: The effect on microbes

Xiong, Xuejun; Siddique, Muhammad Saboor; Graham, Nigel; Yu, Wenzheng

doi:10.1016/j.jhazmat.2021.127797

Cited by 29 publications

(5 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…108 In addition, protein-like components, which contain a high amino acid and N-organic compounds content 49 might both serve preferentially as N-DBP formation precursors. 10 In the context of identified algae/bacterial DOM sources, 72% of the successfully established relationships for chlorination are between protein-like components and HNMs and HANs formation potential, 66,67,109,110 which is in agreement with the N-DBPs formation precursors described above. In contrast, other DOM sources, e.g., leaf leachate, natural soil/water organic matter, showed no preferential relationship with humic/fulvic-like or protein-like components and the formation of N-DBPs.…”

Section: Established Relationships Between Parafac Components and Dbp...supporting

confidence: 64%

Fluorescent Dissolved Organic Matter Constituents as Surrogates for Disinfection Byproduct Formation in Drinking Water Treatment: A Critical Review

Fernández-Pascual

Droz

O’Dwyer

et al. 2022

Preprint

View full text Add to dashboard Cite

Disinfection byproduct (DBP) formation, prediction and minimization are a crucial issue for the domestic water supply industry, which needs to provide quality and safe drinking water to consumers. Fluorescence excitation−emission matrices-parallel factor analysis (EEM-PARAFAC), is used to characterize and quantify fluorescent dissolved organic matter (DOM) in aquatic systems. EEM-PARAFAC has been identified as a potential method to predict DBP formation in treated waters. However, the method ability for specific DBP classes or species prediction is uncertain. This critical review evaluates the published literature describing empirical relationships between DOM fluorophores identified by PARAFAC components and DBP formation obtained during water disinfection. From 42 selected peer-reviewed articles, 202 established linear relationships (R2 ≥0.5) with DBP classes or species were found. Trihalomethanes (THMs) and haloacetic acids (HAAs), as regulated compounds, were extensively investigated and exhibit a strong relationship. Overall, carbonaceous-DBP classes exhibited strong relationships with humic/fulvic-like components. Conversely, a relationship between nitrogenous-DBP classes and PARAFAC components was less clear, but it was shown to be preferential to protein-like PARAFAC components in the case of algae/bacterial DOM sources. This review highlights the challenges of transposing site-specific or DOM source-specific empirical relationship between PARAFAC component and DBPs formation potential to a global model.

show abstract

Section: Established Relationships Between Parafac Components and Dbp...supporting

confidence: 64%

Fluorescent Dissolved Organic Matter Constituents as Surrogates for Disinfection Byproduct Formation in Drinking Water Treatment: A Critical Review

Fernández-Pascual

Droz

O’Dwyer

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Bacteroides has been recognized as a pathogenic genus (Yu, Feng, et al, 2022), and it was present at sites S2 (1.76%), S4 (0.11%), and S7 (0.15%). Xiong et al (2022) found that the abundant Simkaniaceae were present in a microplastic‐contained environment (Xiong et al, 2022). Desulfobacteraceae , a sulfate‐reducing bacteria, is capable of treating heavy‐metal‐polluted media, and the population of Desulfobacteraceae is affected by the heavy metals (Gao et al, 2023).…”

Section: Resultsmentioning

confidence: 99%

Toxicity evaluation of a heavy‐metal‐polluted river: Pollution identification and bacterial community assessment

Verpoort

et al. 2023

Water Environment Research

View full text Add to dashboard Cite

The Salt River is an important urban river in Kaohsiung, Taiwan. In this study, the source identification and risk and toxicity assessment of the heavymetal-contaminated sediments in the Salt River were investigated. The geo-accumulation index (Igeo), enrichment factor (EF), sediment quality guidelines (SQGs), potential ecological risk index (RI), pollution load index (PLI), and toxic units (TU) were applied to determine effects of heavy metals on microbial diversities and ecosystems. Results from the ecological and environmental risk assessment show that high concentrations of Zn, Cr, and Ni were detected in the midstream area and the sum of toxic units (ΣTUs) in the midstream (7.2-32.0) is higher than in the downstream (14.0-19.7) and upstream (9.2-17.1). It could be because of the continuous inputs of heavymetal-contained wastewaters from adjacent industrial parks. Results also inferred that the detected heavy metals in the upstream residential and commercial areas were possibly caused by nearby vehicle emissions, non-point source pollution, and domestic wastewater discharges. Results of metagenomic assays show that the sediments contained significant microbial diversities.Metal-tolerant bacterial phyla (Proteobacteria: 24.4%-46.4%, Bacteroidetes:1.3%-14.8%, and Actinobacteria: 2.3%-11.1%) and pathogenic bacterial phyla (Chlamydiae: 0.5%-37.6% and Chloroflexi: 5.8%-7.2%) with relatively high abundance were detected. Metal-tolerant bacteria would adsorb metals and cause the increased metal concentrations in sediments. Results indicate that the bacterial composition in sediment environments was affected by anthropogenic pollution and human activities and the heavy-metal-polluted ecosystem caused the variations in bacterial communities.

show abstract

“…106 In addition, protein-like components which contain a high amino acid and N-organic compound content 52 may both serve preferentially as N-DBP formation precursors. 10 In the context of identified algal/microbial DOM sources, 72% of the successfully established relationships for chlorination were between protein-like components and HNM and HAN formation potential, 73,89,107,108 which is in agreement with the N-DBP formation precursors described above. In contrast, other DOM sources, e.g., leaf leachate and natural soil/water organic matter, showed no preferential relationship with humic/fulvic-like or protein-like components and the formation of N-DBPs.…”

Section: Components and Dbp Formationmentioning

confidence: 91%

Fluorescent Dissolved Organic Matter Components as Surrogates for Disinfection Byproduct Formation in Drinking Water: A Critical Review

et al. 2023

View full text Add to dashboard Cite

Disinfection byproduct (DBP) formation, prediction, and minimization are critical challenges facing the drinking water treatment industry worldwide where chemical disinfection is required to inactivate pathogenic microorganisms. Fluorescence excitation–emission matrices-parallel factor analysis (EEM-PARAFAC) is used to characterize and quantify fluorescent dissolved organic matter (FDOM) components in aquatic systems and may offer considerable promise as a low-cost optical surrogate for DBP formation in treated drinking waters. However, the global utility of this approach for quantification and prediction of specific DBP classes or species has not been widely explored to date. Hence, this critical review aims to elucidate recurring empirical relationships between common environmental fluorophores (identified by PARAFAC) and DBP concentrations produced during water disinfection. From 45 selected peer-reviewed articles, 218 statistically significant linear relationships (R 2 ≥ 0.5) with one or more DBP classes or species were established. Trihalomethanes (THMs) and haloacetic acids (HAAs), as key regulated classes, were extensively investigated and exhibited strong, recurrent relationships with ubiquitous humic/fulvic-like FDOM components, highlighting their potential as surrogates for carbonaceous DBP formation. Conversely, observed relationships between nitrogenous DBP classes, such as haloacetonitriles (HANs), halonitromethanes (HNMs), and N-nitrosamines (NAs), and PARAFAC fluorophores were more ambiguous, but preferential relationships with protein-like components in the case of algal/microbial FDOM sources were noted. This review highlights the challenges of transposing site-specific or FDOM source-specific empirical relationships between PARAFAC component and DBP formation potential to a global model.

show abstract

Towards microplastics contribution for membrane biofouling and disinfection by-products precursors: The effect on microbes

Cited by 29 publications

References 67 publications

Fluorescent Dissolved Organic Matter Constituents as Surrogates for Disinfection Byproduct Formation in Drinking Water Treatment: A Critical Review

Fluorescent Dissolved Organic Matter Constituents as Surrogates for Disinfection Byproduct Formation in Drinking Water Treatment: A Critical Review

Toxicity evaluation of a heavy‐metal‐polluted river: Pollution identification and bacterial community assessment

Fluorescent Dissolved Organic Matter Components as Surrogates for Disinfection Byproduct Formation in Drinking Water: A Critical Review

Contact Info

Product

Resources

About