A proposed nomenclature for biological processes that remove nitrogen
A consistent terminology is proposed to resolve present inconsistencies and to facilitate distinct communication about biological nitrogen removal processes.
A critical review of resource recovery from municipal wastewater treatment plants – market supply potentials, technologies and bottlenecks
This critical review reveals the technologies and potentials to recover water, energy, fertilizers and products from municipal WWTPs but also analyses the various bottlenecks that may their hinder successful implementation.
Hydrophilic trace organic contaminants in urban stormwater: occurrence, toxicological relevance, and the need to enhance green stormwater infrastructure
Urban stormwater transports hydrophilic trace organic contaminants that need study to ensure safe stormwater discharge or stormwater harvesting for water supply.
Mining valuable minerals from seawater: a critical review
Methods of extracting valuable minerals from seawater and seawater brines generated in desalination plants are critically reviewed in this paper.
Efficient removal of per- and polyfluoroalkyl substances (PFASs) in drinking water treatment: nanofiltration combined with active carbon or anion exchange
Nanofiltration produces potable water, while adsorption materials GAC and AIX remove more PFASs from membrane retentate than from raw water.
Molecular level characterisation of ion-exchange water treatment coupled to ceramic membrane filtration
Preferential removal of highly oxygenated larger aromatic and condensed aromatic molecules through ceramic membrane based water treatment.
Emerging investigator series: carbon electrodes are effective for the detection and reduction of hexavalent chromium in water
Electrochemical methods using carbon electrodes are an attractive option for the detection and reduction of toxic Cr(VI) to benign Cr(III) in drinking water.
Investigation of metaldehyde removal by powdered activated carbon from different water samples
Applying PAC to the water sample collected after static flocculation (position 2) gave the best result regarding the removal of metaldehyde.
Field testing of an onsite sanitation system on apartment building blackwater using biological treatment and electrochemical disinfection
Demonstration of an electrochemical toilet wastewater treatment and disinfection technology at the scale of an apartment building and translation of the system into a commercial product.
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.
Impact of transformation, photodegradation and interaction with glutaraldehyde on the acute toxicity of the biocide DBNPA in cooling tower water
The reuse of cooling tower water (CTW) can substantially lower the freshwater footprint of cooling towers.
Modelling the clogging of a field filtration system used for stormwater harvesting
A model was developed to simulate the clogging of a field-scale stormwater harvesting system with high flow filters over 2.5-year.
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.
Selective removal of natural organic matter during drinking water production changes the composition of disinfection by-products
Disinfection by-products (DBPs) are potentially toxic compounds formed upon chemical disinfection of drinking water. This study evaluate how treatment approaches affect DBP formation and composition.
Field testing of low-cost titania-based photocatalysts for enhanced solar disinfection (SODIS) in rural India
We report the efficacy of titania-based photocatalysts for use as a simple and effective method of disinfecting drinking water in villages in West Bengal, demonstrating the viability of this technique to enhance solar disinfection in rural areas.
Transport mechanisms of water molecules and ions in sub-nano channels of nanostructured water treatment liquid-crystalline membranes: a molecular dynamics simulation study
Transport mechanisms of water molecules and ions in the liquid crystalline (LC) membranes with sub-nano channels formed by self-organization of thermotropic ionic LC compounds were elucidated by molecular dynamics simulations.
Mechanical degradation of polyacrylamide at ultra high deformation rates during hydraulic fracturing
Degradation of drag reducer polyacrylamide under high volume hydraulic fracturing (HVHF) conditions alters its polymer size, distribution and chemical composition, potentially affecting the toxicity and treatability of the resulting wastewater.
DNAzyme-based biosensor as a rapid and accurate verification tool to complement simultaneous enzyme-based media for E. coli detection
DNAzyme-based biosensor can complement enzyme-based media to identify E. coli rapidly.
Temperature-dependent mechanisms of DOM removal by biological activated carbon filters
Physical and chemical adsorption by aged biological active carbon (BAC) filters were observed for some organic matter fractions, and may represent important removal mechanisms during periods of low microbial activity.
Removal of per- and polyfluoroalkyl substances (PFASs) from tap water using heterogeneously catalyzed ozonation
Heterogeneously catalyzed ozonation is successful in removing per- and polyfluoroalkyl substances from water, while persulfate can aid the treatment process.
Layer-by-layer membrane modification allows scandium recovery by nanofiltration
Layer-by-layer membrane modification yields acid resistant membranes for selective scandium recovery from wastes.
Assessing the sustainability of on-site sanitation systems using multi-criteria analysis
Integrated approach to assess the sustainability of on-site sanitation systems.
Oxidation of ammonium by Feammox Acidimicrobiaceae sp. A6 in anaerobic microbial electrolysis cells
Schematic of a biotic MEC with Feammox bacterium Acidimicrobiaceae sp. A6 culture. NH4+ is oxidized to NO2− at the anode and H+ is reduced to form H2 at the cathode.
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.
Step-by-step analysis of drinking water treatment trains using size-exclusion chromatography to fingerprint and track protein-like and humic/fulvic-like fractions of dissolved organic matter
The removal of UV absorbing and fluorescent DOM fractions of tyrosine-, tryptophan-, and fulvic/humic-like compounds at different steps of drinking water treatment was systematically evaluated using size-exclusion chromatography.
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.
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.
On the electrical operation of batch electrodialysis for reduced energy consumption
Batch electrodialysis (ED) may be used for the desalination of brackish water and seawater and for the concentration of high-salinity brine. Better system operation can significantly decrease energy consumption and cost, especially for seawater desalination.
Waterworks-specific composition of drinking water disinfection by-products
Non-target analysis of potentially toxic disinfection by-products at four waterworks in Sweden.
Rejection of micron-sized particles using beech wood xylem
Investigating the removal efficiency of wood tissue in a dead-end filtration of micron-sized surrogates by determining the log removal values as well as the permeability of the material to water.
Identification of the causes of drinking water discolouration from machine learning analysis of historical datasets
Understanding the processes and interactions occurring within complex, ageing drinking water distribution systems is vital to ensuring the supply of safe drinking water.
A framework to analyze sulfate versus chloride selectivity in nanofiltration
Interspecies selectivity between NaCl and Na2SO4 in nanofiltration is explained by a simple, intuitive analytical framework.
COMBI, continuous ozonation merged with biofiltration to study oxidative and microbial transformation of trace organic contaminants
Investigating the biodegradation of ozonation products of trace organic contaminants is important to further elucidate their fate and to assess the efficiency of advanced water treatment processes.
An assessment of the dietary bioavailability of silver nanomaterials in rainbow trout using an ex vivo gut sac technique
The uptake of engineered nanomaterials (ENMs) by the gut of fishes is poorly understood.
Overcoming ammonia inhibition in anaerobic blackwater treatment with granular activated carbon: the role of electroactive microorganisms
Methanogenesis and enrichment of microorganisms capable of interspecies electron and/or hydrogen exchange was investigated with addition of granular activated carbon (GAC) to batch anaerobic digesters treating vacuum collected blackwater with high ammonia concentration.
Assessing the potential of fluorescence spectroscopy to monitor contaminants in source waters and water reuse systems
It is of ongoing interest to evaluate real-time instruments for monitoring water contaminants for source water control and water reuse system performance applications.
Bismuth titanate modified and immobilized TiO2 photocatalysts for water purification: broad pollutant scope, ease of re-use and mechanistic studies
Bi4Ti3O12–TiO2 on glass beads photodegrades pollutants including consumer-product precursors, pesticides, drugs and explosives.
Whole metagenome sequencing of chlorinated drinking water distribution systems
This research highlights the potential of whole metagenome sequencing to help protect drinking water quality and safety.
Cellulose-based water purification using paper filters modified with polyelectrolyte multilayers to remove bacteria from water through electrostatic interactions
Bacteria are removed from contaminated waters through adsorption onto the modified cellulose fiber surface in paper filters with pores larger than the bacteria.
Exploration of the treatment of fish-canning industry effluents by aqueous-phase reforming using Pt/C catalysts
In the current work, an exploratory study on the application of catalytic aqueous phase reforming (APR) to the treatment of fish-canning wastewater was performed for the first time.
Achieving high-rate hydrogen recovery from wastewater using customizable alginate polymer gel matrices encapsulating biomass
Alginate encapsulation matrices selectively retained hydrogen producing biomass, achieving reliable high-rate production of hydrogen at various operating conditions.
Removal of antibiotic resistance genes in an anaerobic membrane bioreactor treating primary clarifier effluent at 20 °C
Antibiotic resistance genes are removed by anaerobic membrane bioreactors at 20 °C.
Integrated, multi-process approach to total nutrient recovery from stored urine
This research investigated an integrated, multi-process approach of struvite precipitation, ammonia stripping–acid absorption, and evaporation to recover NPK from stored urine.
Metaldehyde removal from drinking water by adsorption onto filtration media: mechanisms and optimisation
Trace micropollutants should be removed during drinking water production without increasing the disinfection-by-product formation potential or energy demand of the treatment process.
Design and preliminary implementation of onsite electrochemical wastewater treatment and recycling toilets for the developing world
Self-contained toilet wastewater treatment system prototypes based on electrochemical oxidation of feces and urine using bi-layered semiconductor anodes ([Bi2O3]z[TiO2]1−z/IrxTayO2/Ti) have been designed, constructed, and implemented in regions where access to proper and sufficient sanitation is limited.
Comparison of advanced oxidation processes in the decomposition of diuron and monuron – efficiency, intermediates, electrical energy per order and the effect of various matrices
The efficiency of UV-photolysis, ozonation, their combination and heterogeneous photocatalysis was investigated and compared in various matrices.
Impact of upstream chlorination on filter performance and microbial community structure of GAC and anthracite biofilters
Dechlorination in GAC biofilters leads to greater bioactivity and growth of a diverse microbial community.
Propidium monoazide pretreatment on a 3D-printed microfluidic device for efficient PCR determination of ‘live versus dead’ microbial cells
A microfluidic chip for differentiating live versus dead cells was designed and tested experimentally with lab and environmental samples.
Effects of ortho- and polyphosphates on lead speciation in drinking water
Polyphosphates may increase lead solubility via complexation, but the risk is not well characterized. Size-exclusion chromatography with multi-element detection could help determine the prevalence of lead-polyphosphate complexes in drinking water.
Partial renewal of granular activated carbon biofilters for improved drinking water treatment
There is a trend of increasing natural organic matter (NOM) in raw drinking waters of Nordic countries due to climate change.
Case study: the crude MCHM chemical spill investigation and recovery in West Virginia USA
Several recent chemical spills have caused large-scale drinking water contamination incidents in Canada and the USA.
About this collection
Please see below for recent Open Access papers published in Environmental Science: Water Research & Technology.