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

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

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.

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.

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

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.

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

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.

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).

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.

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.

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

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

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.

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

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.

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.

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

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

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

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.

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

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.

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

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.

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

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

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.

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

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.

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

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

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

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

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.

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

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.

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

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

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

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.

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

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

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

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.

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