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Themed collection Environmental Science: Water Research & Technology Recent HOT Articles

45 items
Communication

Harnessing salinity gradient energy in coastal stormwater runoff to reduce pathogen loading

First demonstration of the capture of salinity gradient energy from stormwater runoff to the ocean, used to power UV-LED disinfection.

Graphical abstract: Harnessing salinity gradient energy in coastal stormwater runoff to reduce pathogen loading
Paper

Understanding the formation of recalcitrant dissolved organic nitrogen as a result of thermal hydrolysis and anaerobic digestion of municipal sludge

This study for the first time investigated the turnover of dissolved organic nitrogen in lab-scale thermal hydrolysis pretreatment at different temperatures with and without mesophilic anaerobic digestion at a solids retention time of 15 days.

Graphical abstract: Understanding the formation of recalcitrant dissolved organic nitrogen as a result of thermal hydrolysis and anaerobic digestion of municipal sludge
Paper

Effects of peracetic acid on aromatic polyamide nanofiltration membranes: a comparative study with chlorine

Peracetic acid (PAA) is being considered as a disinfectant in membrane-based wastewater reuse systems. This study shows that PAA is overall compatible with polyamide membranes and proposes PAA-polyamide reaction mechanisms.

Graphical abstract: Effects of peracetic acid on aromatic polyamide nanofiltration membranes: a comparative study with chlorine
Open Access Paper

Enumeration and characterization of five pathogenic Legionella species from large research and educational buildings

This graph compares the potential amplification of Legionella spp. and specific pathogenic species in the premise plumbing of five buildings.

Graphical abstract: Enumeration and characterization of five pathogenic Legionella species from large research and educational buildings
Paper

Effect of disinfectant residual, pH, and temperature on microbial abundance in disinfected drinking water distribution systems

This work demonstrates insights gained from monitoring absolute microbial abundance in full-scale disinfected drinking water distribution systems and lays a foundation for statistical approaches that could provide a basis for applying these tools.

Graphical abstract: Effect of disinfectant residual, pH, and temperature on microbial abundance in disinfected drinking water distribution systems
Paper

Emerging investigator series: bacterial opportunistic pathogen gene markers in municipal drinking water are associated with distribution system and household plumbing characteristics

Municipally-treated drinking water (DW) is a potential source of exposure to bacterial opportunistic pathogens (OPs), which can cause infection in susceptible individuals.

Graphical abstract: Emerging investigator series: bacterial opportunistic pathogen gene markers in municipal drinking water are associated with distribution system and household plumbing characteristics
From the themed collection: Emerging Investigator Series
Paper

Livestock manure improved antibiotic resistance gene removal during co-treatment of domestic wastewater in an anaerobic membrane bioreactor

First investigation of ARG and MGE removal in an anaerobic membrane bioreactor co-treating real wastewater and manure shows increased manure loading improves ARG and MGE removal.

Graphical abstract: Livestock manure improved antibiotic resistance gene removal during co-treatment of domestic wastewater in an anaerobic membrane bioreactor
Paper

UV/chlorine vs. UV/H2O2 for water reuse at Orange County Water District, CA: a pilot study

On-site demonstration tests evaluated 1,4-dioxane removal in reverse osmosis permeate (RO permeate) at the Orange County Water District (OCWD) Advanced Water Purification Facility (AWPF).

Graphical abstract: UV/chlorine vs. UV/H2O2 for water reuse at Orange County Water District, CA: a pilot study
Paper

Source characterization and removal of N-nitrosamine precursors during activated sludge treatment

Municipal wastewater discharges after secondary biological treatment (e.g., the activated sludge (AS) process) are a major potential source of N-nitrosamine precursors which may impact downstream source water quality.

Graphical abstract: Source characterization and removal of N-nitrosamine precursors during activated sludge treatment
Open Access Paper

Advanced electrochemical oxidation for the simultaneous removal of manganese and generation of permanganate oxidant

Emerging electrochemical systems, such as advanced electro-oxidation, provide a potentially powerful alternative to conventional oxidation processes which can often be unsuitable for small, remote and decentralised system applications.

Graphical abstract: Advanced electrochemical oxidation for the simultaneous removal of manganese and generation of permanganate oxidant
Paper

Comparison of the impact of ozone, chlorine dioxide, ferrate and permanganate pre-oxidation on organic disinfection byproduct formation during post-chlorination

Pre-oxidation is commonly used to mitigate the formation of byproducts during post-disinfection.

Graphical abstract: Comparison of the impact of ozone, chlorine dioxide, ferrate and permanganate pre-oxidation on organic disinfection byproduct formation during post-chlorination
Paper

Detecting hydrogen peroxide reliably in water via ion chromatography: a method evaluation update and comparison in the presence of interfering components

Hydrogen peroxide (H2O2) in complex water matrix can be detected reliably by ion chromatography (IC) due to its superior separation ability.

Graphical abstract: Detecting hydrogen peroxide reliably in water via ion chromatography: a method evaluation update and comparison in the presence of interfering components
Paper

Assessing disinfection byproduct risks for algal impacted surface waters and the effects of peracetic acid pre-oxidation

Peracetic acid pre-oxidation of algal impacted waters can reduce formation of trihalomethanes but promote formation of haloacetonitriles, due to the degradation of dissolved organic matter and coincident release of intracellular organic matter.

Graphical abstract: Assessing disinfection byproduct risks for algal impacted surface waters and the effects of peracetic acid pre-oxidation
Paper

Removal trends of sulfonamides and their ARGs during soil aquifer treatment and subsequent chlorination: effect of aerobic and anaerobic biodegradation

Soil aquifer treatment significantly decreased the SA concentration in recharged synthetic water and aerobic biodegradation played a great role.

Graphical abstract: Removal trends of sulfonamides and their ARGs during soil aquifer treatment and subsequent chlorination: effect of aerobic and anaerobic biodegradation
Paper

On the role of a graphene oxide/titania catalyst, visible LED and ozone in removing mixtures of pharmaceutical contaminants from water and wastewater

Pharmaceuticals removal by photocatalytic ozonation: evaluation of radiation fluence, GO content and GO–TiO2 dosage synergies in ultrapure water photocatalytic ozonation. Two reaction kinetic periods proposed for wastewater photocatalytic ozonation.

Graphical abstract: On the role of a graphene oxide/titania catalyst, visible LED and ozone in removing mixtures of pharmaceutical contaminants from water and wastewater
Paper

Mixture effects of drinking water disinfection by-products: implications for risk assessment

Disinfection by-products (DBPs) in drinking water have been associated with increased cancer risk but effects of known DBPs cannot explain the mixture effects of disinfected water samples.

Graphical abstract: Mixture effects of drinking water disinfection by-products: implications for risk assessment
Paper

Low-cost desalination of seawater and hypersaline brine using nanophotonics enhanced solar energy membrane distillation

A stand-alone small-scale nanophotonics enhanced solar membrane distillation (NESMD) testbed was designed, developed, and tested for desalinating seawater and high salinity feedwaters.

Graphical abstract: Low-cost desalination of seawater and hypersaline brine using nanophotonics enhanced solar energy membrane distillation
Open Access Paper

Emerging investigator series: engineering membrane distillation with nanofabrication: design, performance and mechanisms

Anti-fouling and durability are two important parameters that are closely associated with the development and deployment of membrane distillation (MD).

Graphical abstract: Emerging investigator series: engineering membrane distillation with nanofabrication: design, performance and mechanisms
From the themed collection: Emerging Investigator Series
Paper

Insight into ferrihydrite effects on methanogenesis in UASB reactors treating high sulfate wastewater: reactor performance and microbial community

Ferrihydrite supplemented to establish DIET between iron-reducing bacteria and methanogens with Fe oxides in anaerobic digestion.

Graphical abstract: Insight into ferrihydrite effects on methanogenesis in UASB reactors treating high sulfate wastewater: reactor performance and microbial community
Open Access Paper

Landfill leachate contributes per-/poly-fluoroalkyl substances (PFAS) and pharmaceuticals to municipal wastewater

Widespread disposal of landfill leachate to municipal sewer in the US calls for improved understanding of the relative organic-chemical contributions to the WWTP waste stream and associated surface-water discharge to receptors in the environment.

Graphical abstract: Landfill leachate contributes per-/poly-fluoroalkyl substances (PFAS) and pharmaceuticals to municipal wastewater
Paper

Emerging investigator series: formation of brominated haloacetamides from trihalomethanes during zero-valent iron reduction and subsequent booster chlorination in drinking water distribution

This study investigated the transformation of a THM mixture and the change of toxicity risk in drinking water distribution systems for the first time.

Graphical abstract: Emerging investigator series: formation of brominated haloacetamides from trihalomethanes during zero-valent iron reduction and subsequent booster chlorination in drinking water distribution
From the themed collection: Emerging Investigator Series
Open Access Paper

Reactions of pyrrole, imidazole, and pyrazole with ozone: kinetics and mechanisms

Kinetics and transformation products for the reactions of ozone with pyrrole, imidazole, and pyrazole were determined. For the imidazole–ozone reaction, all possible transformation products were identified, completing the mass balance.

Graphical abstract: Reactions of pyrrole, imidazole, and pyrazole with ozone: kinetics and mechanisms
Paper

Rapid degradation of PFAS in aqueous solutions by reverse vortex flow gliding arc plasma

Gliding arc plasma discharge is an energy-efficient treatment technology for a broad range of poly- and perfluoroalkyl substances in water.

Graphical abstract: Rapid degradation of PFAS in aqueous solutions by reverse vortex flow gliding arc plasma
Paper

Emerging investigator series: capacitive deionization for selective removal of nitrate and perchlorate: impacts of ion selectivity and operating constraints on treatment costs

A parameterized costing model was used to investigate the impacts of ion selectivity on water treatment price for selective ion removal with capacitive deionization (CDI) systems.

Graphical abstract: Emerging investigator series: capacitive deionization for selective removal of nitrate and perchlorate: impacts of ion selectivity and operating constraints on treatment costs
From the themed collection: Emerging Investigator Series
Paper

Organic structure and solid characteristics determine reactivity of phenolic compounds with synthetic and reclaimed manganese oxides

Phenolic substituents and manganese oxide characteristics influence oxidation kinetics and mechanism, as well as the utility of QSARs.

Graphical abstract: Organic structure and solid characteristics determine reactivity of phenolic compounds with synthetic and reclaimed manganese oxides
Paper

Micro-nanobubble aeration promotes senescence of submerged macrophytes with low total antioxidant capacity in urban landscape water

MNBs may promote senescence of macrophytes with low total antioxidant capacity in urban landscape water and thereby affect ecological restoration.

Graphical abstract: Micro-nanobubble aeration promotes senescence of submerged macrophytes with low total antioxidant capacity in urban landscape water
Paper

Fungi characteristics of biofilms from sewage and greywater in small diameter gravity sewers

Fungi characteristics of small diameter gravity sewer (SDGS) biofilms were investigated and influences of wastewater type (rural sewage and greywater) on fungi number, communities and pathogen were analyzed.

Graphical abstract: Fungi characteristics of biofilms from sewage and greywater in small diameter gravity sewers
Paper

Energy recovery in capacitive deionization systems with inverted operation characteristics

Capacitive deionization (CDI) operated under inverted mode involves electronic charging and discharge steps with corresponding ion concentration and desalting coupled with simultaneous energy storage.

Graphical abstract: Energy recovery in capacitive deionization systems with inverted operation characteristics
Paper

Porous carbon nanosheets functionalized with Fe3O4 nanoparticles for capacitive removal of heavy metal ions from water

Porous graphitic carbon nanosheets functionalized by ultrafine Fe3O4 NPs and amino-functionalized activated carbon were developed to construct a hybrids capacitive deionization for efficient removal of multiple heavy metal ions in water.

Graphical abstract: Porous carbon nanosheets functionalized with Fe3O4 nanoparticles for capacitive removal of heavy metal ions from water
Paper

Podoviridae bacteriophage for the biocontrol of Pseudomonas aeruginosa in rainwater

Bacteriophages targeting Pseudomonas spp. were isolated and characterised for the biocontrol pre-treatment of rainwater.

Graphical abstract: Podoviridae bacteriophage for the biocontrol of Pseudomonas aeruginosa in rainwater
Paper

Membrane fouling in an integrated adsorption–UF system: effects of NOM and adsorbent properties

In the integrated adsorption–UF process, fouling resistance of the cake layer was influenced by the properties of both feed water NOM and adsorbents.

Graphical abstract: Membrane fouling in an integrated adsorption–UF system: effects of NOM and adsorbent properties
Paper

Comparison of qPCR and amplicon sequencing based methods for fecal source tracking in a mixed land use estuarine watershed

Fecal indicator bacteria are commonly used to evaluate water quality and make decisions on designating and restricting use.

Graphical abstract: Comparison of qPCR and amplicon sequencing based methods for fecal source tracking in a mixed land use estuarine watershed
Paper

Complex organic particulate artificial sewage (COPAS) as surrogate wastewater in anaerobic assays

By mimicking the complex organic matter composition in sewage, COPAS is a readily available and practical alternative in anaerobic lab-scale studies.

Graphical abstract: Complex organic particulate artificial sewage (COPAS) as surrogate wastewater in anaerobic assays
Paper

Flow cytometric fingerprinting to assess the microbial community response to changing water quality and additives

In this paper, flow cytometry is used as a tell-tale for minor water quality changes to optimize the water quality and biostability during and after treatment.

Graphical abstract: Flow cytometric fingerprinting to assess the microbial community response to changing water quality and additives
Paper

Oily bilge water treatment using DC/AC powered electrocoagulation

DC and AC powered electrocoagulation were compared for oil removal from bilge water.

Graphical abstract: Oily bilge water treatment using DC/AC powered electrocoagulation
Open Access Paper

Monitoring the integrity of reverse osmosis membranes using novel indigenous freshwater viruses and bacteriophages

Naturally present indigenous fresh water viruses are able to accurately monitor virus rejection of intact and damaged RO membranes, with high sensitivity and similar performance as spiked bacteriophage MS2.

Graphical abstract: Monitoring the integrity of reverse osmosis membranes using novel indigenous freshwater viruses and bacteriophages
Paper

Effects of zinc orthophosphate on the antibiotic resistant bacterial community of a source water used for drinking water treatment

The presence of zinc, and not orthophosphate, was the selective pressure for antibiotic resistance.

Graphical abstract: Effects of zinc orthophosphate on the antibiotic resistant bacterial community of a source water used for drinking water treatment
Paper

A novel strategy using peroxymonosulfate to control the formation of iodinated aromatic products in treatment of phenolic compounds by permanganate

Formation of iodinated aromatic products during Mn(VII) oxidation of phenolic compounds in the presence of I was reduced by the addition of PMS.

Graphical abstract: A novel strategy using peroxymonosulfate to control the formation of iodinated aromatic products in treatment of phenolic compounds by permanganate
Open Access Paper

Evaluation of the novel substrate RUG™ for the detection of Escherichia coli in water from temperate (Zurich, Switzerland) and tropical (Bushenyi, Uganda) field sites

The assessment of a novel enzyme-based assay showed it to be reliable to detect and quantify E. coli in water.

Graphical abstract: Evaluation of the novel substrate RUG™ for the detection of Escherichia coli in water from temperate (Zurich, Switzerland) and tropical (Bushenyi, Uganda) field sites
Open Access Paper

Long-term performance evaluation of an anoxic sulfur oxidizing moving bed biofilm reactor under nitrate limited conditions

An anoxic sulfur-oxidizing moving bed biofilm reactor (MBBR) treating sulfur and nitrate-contaminated synthetic wastewater was monitored for 306 days under feed nitrogen-to-sulfur (N/S) molar ratios of 0.5, 0.3 and 0.1.

Graphical abstract: Long-term performance evaluation of an anoxic sulfur oxidizing moving bed biofilm reactor under nitrate limited conditions
Open Access Paper

Waterworks-specific composition of drinking water disinfection by-products

Non-target analysis of potentially toxic disinfection by-products at four waterworks in Sweden.

Graphical abstract: Waterworks-specific composition of drinking water disinfection by-products
Paper

Biodegradation and attenuation of MIB and 2,4-D in drinking water biologically active sand and activated carbon filters

Biologically acclimated sand and granular activated carbon (GAC) filter performance for trace organic contaminant control is compared under variable water quality and operational conditions.

Graphical abstract: Biodegradation and attenuation of MIB and 2,4-D in drinking water biologically active sand and activated carbon filters
Paper

Tertiary treatment of secondary effluent using ultrafiltration for wastewater reuse: correlating membrane fouling with rejection of effluent organic matter and hydrophobic pharmaceuticals

Permeability loss and the low retention efficiency of soluble organics significantly restrict the application of ultrafiltration (UF) for water reclamation.

Graphical abstract: Tertiary treatment of secondary effluent using ultrafiltration for wastewater reuse: correlating membrane fouling with rejection of effluent organic matter and hydrophobic pharmaceuticals
Paper

Capacitive deionization using symmetric carbon electrode pairs

Scenarios (a)–(c) are created to study the effect of the chemical surface charge of carbon electrodes on capacitive deionization using symmetric carbon electrode pairs.

Graphical abstract: Capacitive deionization using symmetric carbon electrode pairs
Paper

Microplastic biofilm in fresh- and wastewater as a function of microparticle type and size class

Microplastics are pollutants of concern in the freshwater and marine environments. These microparticles carry biofilm communities unique from the surrounding water.

Graphical abstract: Microplastic biofilm in fresh- and wastewater as a function of microparticle type and size class
45 items

About this collection

Here is a collection of recent Environmental Science: Water, Research & Technology articles which have been classified as ‘HOT articles’ due to receiving particularly high scores at peer review.

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