Responsible science, engineering and education for water resource recovery and circularity
Integration of resource recovery and circular economy concepts in higher education will stimulate responsible innovation in the water sector for an ecologically-balanced society.
Growth of Legionella during COVID-19 lockdown stagnation
While “avoiding stagnation” has been the mantra of building water experts, support for how this terminology is used is not overly convincing. Carefully nuanced COVID stagnation studies can improve water quality research and communication strategies.
Recent advances in portable heavy metal electrochemical sensing platforms
This Review explores the parameters to be engineered to design in situ electrochemical sensor platforms capable of meeting new EU regulation.
Microplastics removal in wastewater treatment plants: a critical review
Wastewater treatment plants (WWTPs) are an important route for microplastics to enter aquatic environments.
Energy performance and climate dependency of technologies for fresh water production from atmospheric water vapour
Solving the water scarcity problem by enhancing water extraction from air technology.
Biochar-augmented biofilters to improve pollutant removal from stormwater – can they improve receiving water quality?
Stormwater biofilters are being implemented widely in urban environments to provide green space, alleviate flooding, and improve stormwater quality.
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.
Amyloid hybrid membranes for removal of clinical and nuclear radioactive wastewater
Highly efficient hybrid amyloid membrane to remove clinical and nuclear radioactive wastewater.
Efficacy of corrosion control and pipe replacement in reducing citywide lead exposure during the Flint, MI water system recovery
Enhanced corrosion control and replacement of all lead-based pipes are expected to reduce citywide lead exposure by about 72–84%. However, Flint's post-lead pipe era will not result in completely lead free drinking water.
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.
Deep-bed filters as post-treatment for ozonation in tertiary municipal wastewater treatment: impact of design and operation on treatment goals
The removal of organic contaminants during post-treatment with deep-bed filters after ozonation in tertiary municipal wastewater treatment can be optimised by the choice of filter material and contact time.
Influence of short- and long-term exposure on the biodegradation capacity of activated sludge microbial communities in ready biodegradability tests
The output of ready biodegradability tests (RBTs), that are extensively used to screen the potential of chemicals to be biodegraded, can be influenced by exposure of microbial communities to organic chemicals.
Application of liquid-infused membranes to mitigate biofouling
The novel liquid-infused membranes have been shown to mitigate membrane biofouling. Here, the long-term stability of these membrane have been tested and analyzed using bacterial growth curve models.
Ammonia removal from mixed dewatering liquors by three different deammonification technologies
Deammonification is an established biological nitrogen removal process for dewatering liquors from anaerobic digestion.
Regularized regression analysis for the prediction of virus inactivation efficiency by chloramine disinfection
The sparse modeling methods using water quality information as explanatory variables enable us to appropriately predict virus inactivation efficiency in wastewater treatment plants.
Trends in microbiological drinking water quality violations across the United States
Trends in microbiological drinking water quality violations in the U.S. indicate that very small and transient non-community water systems bear a disproportionate burden exacerbated by recent regulatory changes.
Impact of coagulation–ultrafiltration on long-term pipe biofilm dynamics in a full-scale chloraminated drinking water distribution system
Introducing coagulation–ultrafiltration removed bacteria from the drinking water but did not impact nitrification, localizing this process to the biofilm community.
Removal of contaminants from canal water using microwave synthesized zero valent iron nanoparticles
Microwave synthesized (low energy) ZV-FeNPs stabilised with Mentha piperita extract removed >80% of phosphate, ammonia, nitrate, lead and chloride, typical agricultural run-off contaminants, from UK canal water with a single application for 24 h.
Evaluating the accuracy of two in situ optical sensors to estimate DOC concentrations for drinking water production
Fluorescence and absorbance based sensors for DOC concentration estimations can help in optimizing drinking water production processes.
Photodegradation of antihistamine chlorpheniramine using a novel iron-incorporated carbon material and solar radiation
Water pollution due to emerging contaminants is a topic that should be researched to a greater extent because of the ignorance of adverse effects these pollutants may have on living beings.
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.
UVC-based advanced oxidation processes for simultaneous removal of microcontaminants and pathogens from simulated municipal wastewater at pilot plant scale
The challenge of providing good quality reclaimed water free from contaminants of emerging concern, even at small concentrations, i.e., microcontaminants (MCs) and pathogens are main hot topics worldwide.
High-throughput and reliable determination of 13 haloacetic acids and dalapon in water and evaluation of control strategies
A simple, fast, highly-sensitive and selective method for the simultaneous determination of 13 haloacetic acids and dalapon in water was developed and applied to evaluate two strategies to control the concentrations of the target analytes in water.
Simultaneous ozonation of 90 organic micropollutants including illicit drugs and their metabolites in different water matrices
The ozonation of 90 chemically diverse organic micropollutants (OMPs) including four classes of illicit drugs and their metabolites was studied in pure buffered water, tap water and wastewater effluent at three specific ozone doses and three pH levels.
Exploring resource recovery potentials for the aerobic granular sludge process by mass and energy balances – energy, biopolymer and phosphorous recovery from municipal wastewater
Mass and energy balances are an excellent tool to explore the integration of resource recovery technologies into wastewater treatment processes and reveal recoverable resource quantities and occurring trade-offs at an early process design stage.
Barriers to handpump serviceability in Malawi: life-cycle costing for sustainable service delivery
Life-cycle assessment model and regression analysis identifies drivers that negatively impact the lifecycle of community Afridev handpumps under various tariff scenarios for rural community water supply.
Chemical regeneration of granular activated carbon: preliminary evaluation of alternative regenerant solutions
An adsorption and desorption study has been conducted using five organic compounds of different physico-chemical properties and four regenerant solutions to evaluate the feasibility of a novel on-site chemical regeneration of GAC.
Microbiological water quality in a decentralized Arctic drinking water system
Drinking water samples were collected from the water source, water delivery truck, domestic water storage tanks, and at the point of use in a decentralized drinking water system in Pond Inlet, Nunavut, a predominantly Inuit community in Canada's Arctic region.
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).
Integration of aerobic granulation and UV/H2O2 processes in a continuous flow system for the degradation of sulfolane in contaminated water
Aerobic granulation and UV/H2O2 in a continuous flow-through reactor can effectively degrade emerging contaminates, such as sulfolane.
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.
About this collection
Please see below for recent Open Access papers published in Environmental Science: Water Research & Technology.