Themed collection Recent Open Access Articles

103 items - Showing page 1 of 2
Open Access Perspective

Wastewater research and surveillance: an ethical exploration

This article provides an ethical exploration of wastewater research surveillance, incorporating insights from data ethics, public health ethics, research ethics, and environmental and water ethics.

Graphical abstract: Wastewater research and surveillance: an ethical exploration
From the themed collection: Recent Open Access Articles
Open Access Perspective

Targeting current and future threats: recent methodological trends in environmental antimicrobial resistance research and their relationships to risk assessment

Recent research on antimicrobial resistance in the environment has emphasized targeted methods. Increased use of non-targeted methods is needed to determine how frequently novel resistance genes arise.

Graphical abstract: Targeting current and future threats: recent methodological trends in environmental antimicrobial resistance research and their relationships to risk assessment
Open Access Perspective

Plant-wide systems microbiology for the wastewater industry

Infiltrating systems microbiology concepts in the water industry requires the development of a language of love and shared endpoints in analytical bioscience and process engineering at the (waste)water line.

Graphical abstract: Plant-wide systems microbiology for the wastewater industry
From the themed collection: Recent Open Access Articles
Open Access Frontier

Urban stormwater capture for water supply: look out for persistent, mobile and toxic substances

Urban stormwater is a source of persistent, mobile and toxic substances, however the risk for water resources is unknown.

Graphical abstract: Urban stormwater capture for water supply: look out for persistent, mobile and toxic substances
Open Access Frontier

Emerging investigator series: the role of phage lifestyle in wastewater microbial community structures and functions: insights into diverse microbial environments

Harnessing phage for biological treatment is of growing interest, but an improved understanding of phage diversity, host range, lifestyle, molecular signaling, and genetic potential are needed for microbial community control.

Graphical abstract: Emerging investigator series: the role of phage lifestyle in wastewater microbial community structures and functions: insights into diverse microbial environments
From the themed collection: Recent Open Access Articles
Open Access Frontier

The potential contribution of urine source separation to the SDG agenda – a review of the progress so far and future development options

Closing the human nutrient cycle with decentralized urine separation would help to achieve progress in food security and water protection – especially in poor countries. For this, radical innovation is needed along the whole sanitation value chain.

Graphical abstract: The potential contribution of urine source separation to the SDG agenda – a review of the progress so far and future development options
Open Access Tutorial Review

Quantitative sustainable design (QSD) for the prioritization of research, development, and deployment of technologies: a tutorial and review

This tutorial review synthesizes literature on sustainability analyses to introduce quantitative sustainable design (QSD) for technology research, development, and deployment.

Graphical abstract: Quantitative sustainable design (QSD) for the prioritization of research, development, and deployment of technologies: a tutorial and review
Open Access Critical Review

Next generation decentralized water systems: a water-energy-infrastructure-human nexus (WEIHN) approach

This review highlights the pressing need for sustainable water management strategies within the water-energy-infrastructure-human nexus, and accentuates the critical roles of infrastructure and human engagement for sustainable water management.

Graphical abstract: Next generation decentralized water systems: a water-energy-infrastructure-human nexus (WEIHN) approach
Open Access Critical Review

Antibiotic resistance in urban stormwater: a review of the dissemination of resistance elements, their impact, and management opportunities

Traditional stormwater infrastructure facilitates the transport of antibiotic resistance genes while green stormwater infrastructure may capture the genes and promote horizontal gene transfer.

Graphical abstract: Antibiotic resistance in urban stormwater: a review of the dissemination of resistance elements, their impact, and management opportunities
Open Access Critical Review

Removal of metals from water using MOF-based composite adsorbents

This review article focuses on metal–organic framework (MOF) composites and the impact of mixing MOFs with other materials, such as polymers, carbon-based materials, and magnetic particles, to increase their performance to remove metals from water.

Graphical abstract: Removal of metals from water using MOF-based composite adsorbents
Open Access Critical Review

Resource recovery technologies as microbial risk barriers: towards safe use of excreta in agriculture based on hazard analysis and critical control point

Individual resource recovery processes are monitored as health risk barriers.

Graphical abstract: Resource recovery technologies as microbial risk barriers: towards safe use of excreta in agriculture based on hazard analysis and critical control point
Open Access Critical Review

Addressing main challenges in the tertiary treatment of urban wastewater: are homogeneous photodriven AOPs the answer?

Homogeneous photodriven advanced oxidation processes (HP-AOPs) have been increasingly investigated in past years as a possible alternative solution to conventional tertiary treatment methods of urban wastewater.

Graphical abstract: Addressing main challenges in the tertiary treatment of urban wastewater: are homogeneous photodriven AOPs the answer?
Open Access Critical Review

Macroscopic covalent organic framework architectures for water remediation

This article has critically reviewed the story of macroscopic developments of COFs for water remediation. The various macroscopic COFs for removing toxic organic and inorganic pollutants have been systematically surveyed.

Graphical abstract: Macroscopic covalent organic framework architectures for water remediation
Open Access Communication

Arsenic removal from Peruvian drinking water using milk protein nanofibril–carbon filters: a field study

A field study was carried out in Peru to remove arsenic from water in arsenic-contaminated regions using milk protein nanofibril filters. Results show that this technology can bring back water to drinking standard in both urban and rural settings.

Graphical abstract: Arsenic removal from Peruvian drinking water using milk protein nanofibril–carbon filters: a field study
From the themed collection: Recent Open Access Articles
Open Access Communication

Standardizing data reporting in the research community to enhance the utility of open data for SARS-CoV-2 wastewater surveillance

We propose a minimum set of meta-information to accompany the reporting of SARS-CoV-2 occurrence in wastewater for improved data interpretation.

Graphical abstract: Standardizing data reporting in the research community to enhance the utility of open data for SARS-CoV-2 wastewater surveillance
From the themed collection: Recent Open Access Articles
Open Access Paper

Identification and quantification of diffuse groundwater pollution in a mineralised watershed

Locating and quantifying sources of metals in a mineralised catchment, using tracer injection and synoptic sampling.

Graphical abstract: Identification and quantification of diffuse groundwater pollution in a mineralised watershed
From the themed collection: Recent Open Access Articles
Open Access Paper

Effects of carbon diversion to primary sludge production on thermal hydrolysis pretreatment-enhanced anaerobic digestion

Solid mass flow through the WRRF (a) without primary settling, (b) with primary settling and a PS-to-WAS ratio of 1 : 1, and (c) with primary settling and a PS-to-WAS ratio of 3 : 1.

Graphical abstract: Effects of carbon diversion to primary sludge production on thermal hydrolysis pretreatment-enhanced anaerobic digestion
From the themed collection: Recent Open Access Articles
Open Access Paper

Reactions of hypobromous acid with dimethyl selenide, dimethyl diselenide and other organic selenium compounds: kinetics and product formation

We studied reactions between a variety of organic forms of the essential element selenium (Se) and the oxidant hypobromous acid (HOBr). The studied Se compounds, especially selenomethionine, had a high reactivity with HOBr.

Graphical abstract: Reactions of hypobromous acid with dimethyl selenide, dimethyl diselenide and other organic selenium compounds: kinetics and product formation
From the themed collection: Recent Open Access Articles
Open Access Paper

Reaction of methionine with chlorine: kinetics, product formation, and potential use as a scavenger in chlorine dioxide-based systems

The present study investigates the reaction of methionine with free available chlorine (FAC) and estimates the usability of methionine as a selective scavenger for intrinsically formed FAC in chlorine dioxide (ClO2)-based reactions.

Graphical abstract: Reaction of methionine with chlorine: kinetics, product formation, and potential use as a scavenger in chlorine dioxide-based systems
From the themed collection: Recent Open Access Articles
Open Access Paper

Estimating impacts of LCRR's fifth-liter sampling and find-and-fix requirements on large water systems

This study demonstrates a data driven method for estimating fifth-liter water lead levels from first-liter water lead data.

Graphical abstract: Estimating impacts of LCRR's fifth-liter sampling and find-and-fix requirements on large water systems
From the themed collection: Recent Open Access Articles
Open Access Paper

Water recycling public toilets based on onsite electrochemical wastewater treatment

14-month performance study of an anaerobic bioreactor combined with electrochemical oxidation and integrated into a self-contained public bathroom under daily use in Coimbatore (Tamil Nadu, India).

Graphical abstract: Water recycling public toilets based on onsite electrochemical wastewater treatment
From the themed collection: Recent Open Access Articles
Open Access Paper

Particle and DBP removal efficiency and toxicity evaluation of polypropylene cotton filters in household drinking water purification systems

PCF could efficiently remove iron particles and DBPs to reduce toxicity risks.

Graphical abstract: Particle and DBP removal efficiency and toxicity evaluation of polypropylene cotton filters in household drinking water purification systems
From the themed collection: Recent Open Access Articles
Open Access Paper

Source to tap investigation of natural organic matter in non-disinfected drinking water distribution systems

Characteristics of natural organic matter present in drinking water from an undisinfected system fed on groundwater were investigated by spectroscopic methods highlighting changes due to seasonality, treatment and water distribution.

Graphical abstract: Source to tap investigation of natural organic matter in non-disinfected drinking water distribution systems
From the themed collection: Recent Open Access Articles
Open Access Paper

Characterization of microplastics in water bottled in different packaging by Raman spectroscopy

MPs were detected by Raman spectroscopy in bottled water from different packaging.

Graphical abstract: Characterization of microplastics in water bottled in different packaging by Raman spectroscopy
From the themed collection: Recent Open Access Articles
Open Access Paper

Science-based pathogen treatment requirements for direct potable reuse

This study specifies science-based pathogen treatment requirements for direct potable reuse using high-quality monitoring data and probabilistic approaches to ensure consistent and reliable protection of public health.

Graphical abstract: Science-based pathogen treatment requirements for direct potable reuse
From the themed collection: Recent Open Access Articles
Open Access Paper

Highly versatile and automated total ammonia nitrogen compact analyzer suitable for different types of water samples

We present a versatile, robust, compact and automatic potentiometric analytical tool for in-field total ammonia nitrogen (TAN) monitoring in aqueous samples from different sources, with no sample pretreatment required.

Graphical abstract: Highly versatile and automated total ammonia nitrogen compact analyzer suitable for different types of water samples
From the themed collection: Recent Open Access Articles
Open Access Paper

A stochastic approach for assessing the chronic environmental risk generated by wet-weather events from integrated urban wastewater systems

Environmental chronic risk generated by wet-weather discharges compared to final effluent was stochastically assessed, also from a climate-change perspective, stressing their growing contribution for many (micro-)pollutants.

Graphical abstract: A stochastic approach for assessing the chronic environmental risk generated by wet-weather events from integrated urban wastewater systems
From the themed collection: Recent Open Access Articles
Open Access Paper

The potential of near real-time monitoring of β-D-glucuronidase activity to establish effective warning systems in urban recreational waters

The enzymatic activity of E. coli in urban surface waters gives a sharp but short response to contamination events.

Graphical abstract: The potential of near real-time monitoring of β-d-glucuronidase activity to establish effective warning systems in urban recreational waters
From the themed collection: Recent Open Access Articles
Open Access Paper

Concentration, distribution, and fractionation of metals in the filter material of 29 bioretention facilities: a field study

To maintain function in biofilters over time and reduce risk for leakage of metals, regular maintenance, including replacement of top layer is recommended. However, consider metal fractionation when handling material.

Graphical abstract: Concentration, distribution, and fractionation of metals in the filter material of 29 bioretention facilities: a field study
From the themed collection: Recent Open Access Articles
Open Access Paper

Metal distribution in first flush in highway runoff of one of the busiest motorway junctions in the UK

We observed an unexpectedly high proportion of Fe2+dis in accumulated highway runoff, which could be attributed to local catchment characteristics.

Graphical abstract: Metal distribution in first flush in highway runoff of one of the busiest motorway junctions in the UK
From the themed collection: Recent Open Access Articles
Open Access Paper

Towards urban drainage sediment accumulation monitoring using temperature sensors

An innovative technique based on temperature measurements promises to better understand and manage sediments in urban drainage systems.

Graphical abstract: Towards urban drainage sediment accumulation monitoring using temperature sensors
From the themed collection: Recent Open Access Articles
Open Access Paper

Predicted aquatic exposure effects from a national urban stormwater study

Episodic stormwater discharges expose aquatic ecosystems to extensive contaminant mixtures. Cumulative acute risks to multiple aquatic trophic levels are estimated based on contaminant mixtures documented in a US stormwater reconnaissance.

Graphical abstract: Predicted aquatic exposure effects from a national urban stormwater study
From the themed collection: Recent Open Access Articles
Open Access Paper

Influence of colloidal iron oxide and natural organic matter fouling on nanofiltration membrane performance: role of feed composition and membrane properties

Iron oxide colloids and natural organic matter in the presence of divalent cations cause irreversible fouling for commonly used drinking water nanofiltration membranes.

Graphical abstract: Influence of colloidal iron oxide and natural organic matter fouling on nanofiltration membrane performance: role of feed composition and membrane properties
From the themed collection: Recent Open Access Articles
Open Access Paper

Unlocking the effect of Zn2+ on crystal structure, optical properties, and photocatalytic degradation of perfluoroalkyl substances (PFAS) of Bi2WO6

The effect of Zn2+ on the crystal structure, optical properties, and photocatalytic activity for degradation of perfluoroalkyl substances of Bi2WO6 was studied.

Graphical abstract: Unlocking the effect of Zn2+ on crystal structure, optical properties, and photocatalytic degradation of perfluoroalkyl substances (PFAS) of Bi2WO6
From the themed collection: Recent Open Access Articles
Open Access Paper

Legionella pneumophila occurrence in reduced-occupancy buildings in 11 cities during the COVID-19 pandemic

Legionella pneumophila was quantified during the COVID-19 pandemic in 26 buildings in three countries to identify factors that influenced positivity.

Graphical abstract: Legionella pneumophila occurrence in reduced-occupancy buildings in 11 cities during the COVID-19 pandemic
From the themed collection: Recent Open Access Articles
Open Access Paper

Optimization of indirect wastewater characterization: a hybrid approach based on decision trees, genetic algorithms and spectroscopy

The spectral response of wastewater samples allows, through the use of correlation models, to estimate the pollutant load of the samples in a simple, fast and economical way.

Graphical abstract: Optimization of indirect wastewater characterization: a hybrid approach based on decision trees, genetic algorithms and spectroscopy
From the themed collection: Recent Open Access Articles
Open Access Paper

Impact of dissolved sulfide on a hybrid membrane bioreactor treating the effluent of a mainstream up-flow anaerobic sludge blanket

The influence of dissolved sulfide on a hybrid membrane bioreactor (176 L) is assessed. The key finding is that sulfide did not hinder the MBR's denitrification potential but improved it.

Graphical abstract: Impact of dissolved sulfide on a hybrid membrane bioreactor treating the effluent of a mainstream up-flow anaerobic sludge blanket
From the themed collection: Recent Open Access Articles
Open Access Paper

Reduction of haloacetonitrile-associated risk by adjustment of distribution system pH

We find that increasing distribution system pH is an effective method to reduce HAN-associated toxicity, although potential tradeoffs exist.

Graphical abstract: Reduction of haloacetonitrile-associated risk by adjustment of distribution system pH
From the themed collection: Recent Open Access Articles
Open Access Paper

Hexavalent chromium waste removal via bioelectrochemical systems – a life cycle assessment perspective

First LCA study for assessing the environmental performance of BESs for metal recovery application.

Graphical abstract: Hexavalent chromium waste removal via bioelectrochemical systems – a life cycle assessment perspective
From the themed collection: Recent Open Access Articles
Open Access Paper

Trace elements in peat bog porewaters: indicators of dissolution of atmospheric dusts and aerosols from anthropogenic and natural sources

Trace elements in peat bog porewater: indicators of dissolution of atmospheric dusts and aerosols from anthropogenic & natural sources.

Graphical abstract: Trace elements in peat bog porewaters: indicators of dissolution of atmospheric dusts and aerosols from anthropogenic and natural sources
From the themed collection: Recent Open Access Articles
Open Access Paper

Flow cytometry for on-line microbial regrowth monitoring in a membrane filtration plant: pilot-scale case study for wastewater reuse

With the use of on-line flow cytometric fingerprinting, we confirmed that cell densities in a RO permeate were caused by bacterial regrowth in the piping, and that there was no problem with the integrity of the membrane and resulting water quality.

Graphical abstract: Flow cytometry for on-line microbial regrowth monitoring in a membrane filtration plant: pilot-scale case study for wastewater reuse
From the themed collection: Recent Open Access Articles
Open Access Paper

Exposures and potential health implications of contaminant mixtures in linked source water, finished drinking water, and tapwater from public-supply drinking water systems in Minneapolis/St. Paul area, USA

Mixtures of contaminants are observed in public-supply drinking water. Frequent exceedances of human-health advisories indicate potential cumulative risk to vulnerable subpopulations and the continued need for broad chemical assessments in tapwater.

Graphical abstract: Exposures and potential health implications of contaminant mixtures in linked source water, finished drinking water, and tapwater from public-supply drinking water systems in Minneapolis/St. Paul area, USA
From the themed collection: Recent Open Access Articles
Open Access Paper

Direct non-target analysis of dissolved organic matter and disinfection by-products in drinking water with nano-LC-FT-ICR-MS

Detection of DBPs directly from only 1 μL of drinking water provides novel and less biased insights of DBP formation and their chemical properties.

Graphical abstract: Direct non-target analysis of dissolved organic matter and disinfection by-products in drinking water with nano-LC-FT-ICR-MS
From the themed collection: Recent Open Access Articles
Open Access Paper

Selective elimination of enterovirus genotypes by activated sludge and chlorination

Enterovirus (EV) genotypes exhibit different susceptibilities to activated sludge and chlorination. The most persistent genotypes (CVB3, CVB5, E25 in this study) rather than bulk EV should be used as indicators of wastewater treatment success.

Graphical abstract: Selective elimination of enterovirus genotypes by activated sludge and chlorination
From the themed collection: Recent Open Access Articles
Open Access Paper

Low-irradiance inactivation kinetics of Escherichia coli during prolonged exposure to ultraviolet-C radiation

There is growing interest in using continuous, low-irradiance germicidal ultraviolet (UV) radiation to prevent bacterial attachment and growth on surfaces. However, inactivation kinetics at those low (μW cm−2) irradiance values are well understood.

Graphical abstract: Low-irradiance inactivation kinetics of Escherichia coli during prolonged exposure to ultraviolet-C radiation
From the themed collection: Recent Open Access Articles
Open Access Paper

Health risks due to intrusion into the drinking water distribution network: hydraulic modelling and quantitative microbial risk assessment

This work provides a valuable application of the QMRA framework in a real distribution network, using available data from the water supplier and validated with other readily available sources.

Graphical abstract: Health risks due to intrusion into the drinking water distribution network: hydraulic modelling and quantitative microbial risk assessment
From the themed collection: Recent Open Access Articles
Open Access Paper

Selected pharmaceutical analysis in a wastewater treatment plant during COVID-19 infection waves in South Africa

Concentrations of pharmaceuticals (sulfamethoxazole, sulfamethoxazole hydroxylamine, prednisolone and ivermectin) showed good correlation with the number of COVID-19 infections in South Africa.

Graphical abstract: Selected pharmaceutical analysis in a wastewater treatment plant during COVID-19 infection waves in South Africa
From the themed collection: Recent Open Access Articles
Open Access Paper

Detection of domestic-use chemicals in urban storm drains during dry days in a separated sewer area

The decrepitude of infrastructures currently threatens developed countries, including Japan.

Graphical abstract: Detection of domestic-use chemicals in urban storm drains during dry days in a separated sewer area
From the themed collection: Recent Open Access Articles
Open Access Paper

Stay in the loop: lessons learned about the microbial water quality in pipe loops transitioned from conventional to direct potable reuse water

A transition from a conventional drinking water system to direct potable reuse was simulated in pilot-scale pipe loops. To our knowledge, this study is the first to investigate the microbial impacts of the transition to treated water augmentation.

Graphical abstract: Stay in the loop: lessons learned about the microbial water quality in pipe loops transitioned from conventional to direct potable reuse water
From the themed collection: Recent Open Access Articles
Open Access Paper

Effectiveness of passive sampling for the detection and genetic characterization of human viruses in wastewater

Wastewater-based epidemiology is a promising tool to anticipate potential viral outbreaks not only at city-scale but also at precincts-scale or even buildings.

Graphical abstract: Effectiveness of passive sampling for the detection and genetic characterization of human viruses in wastewater
From the themed collection: Recent Open Access Articles
Open Access Paper

Amino acid-driven adsorption of emerging contaminants in water by modified graphene oxide nanosheets

Amino acid modified graphene nanosheets adsorb emerging contaminants from tap water outperforming unmodified precursors and activated carbon for carbamazepine, bisphenol A and benzophenone 4. Structure–adsorption relationships are unraveled.

Graphical abstract: Amino acid-driven adsorption of emerging contaminants in water by modified graphene oxide nanosheets
From the themed collection: Recent Open Access Articles
Open Access Paper

Simulating long term discolouration behaviour in large diameter trunk mains

Tracking accumulation and mobilisation behaviour of pipe wall material layers shows the Variable Condition Discolouration Model (VCDM) capable of simulating long term hydraulic induced discolouration behaviour in drinking water distribution systems.

Graphical abstract: Simulating long term discolouration behaviour in large diameter trunk mains
From the themed collection: Recent Open Access Articles
Open Access Paper

Exploring potential dual-stage attention based recurrent neural network machine learning application for dosage prediction in intelligent municipal management

This study explores the potential of sustainable and precise management based on machine learning in real-world urban engineering applications.

Graphical abstract: Exploring potential dual-stage attention based recurrent neural network machine learning application for dosage prediction in intelligent municipal management
From the themed collection: Recent Open Access Articles
Open Access Paper

Functionalised polymeric materials for the removal of arsenate from contaminated water

Polymeric beads functionalised with a chemical receptor show they can remove arsenate from contaminated water to levels below 5 ppb (well below the WHO guideline value of 10 ppb).

Graphical abstract: Functionalised polymeric materials for the removal of arsenate from contaminated water
From the themed collection: Recent Open Access Articles
Open Access Paper

Evaluating the use of chemically modified clinoptilolite zeolite for the simultaneous recovery of ammonium and phosphate from blackwater

Clinoptilolite zeolite was chemically modified with sodium, calcium, or magnesium to comparatively study the physical recovery of ammonium and phosphates from simulated blackwater.

Graphical abstract: Evaluating the use of chemically modified clinoptilolite zeolite for the simultaneous recovery of ammonium and phosphate from blackwater
From the themed collection: Recent Open Access Articles
Open Access Paper

Congo red protects bacteriophages against UV irradiation and allows for the simultaneous use of phages and UV for membrane sterilization

Congo red dye protects bacteriophages from the adverse effects of UV radiation, allowing for simultaneous membrane surface cleaning from biofoundries.

Graphical abstract: Congo red protects bacteriophages against UV irradiation and allows for the simultaneous use of phages and UV for membrane sterilization
From the themed collection: Recent Open Access Articles
Open Access Paper

Combined sewer overflows: relating event duration monitoring data to wastewater systems' capacity in England

Water pollution caused by the frequent use of combined sewer overflows (CSOs) has been attracting increased media and political coverage in England as in other places in the world.

Graphical abstract: Combined sewer overflows: relating event duration monitoring data to wastewater systems' capacity in England
From the themed collection: Recent Open Access Articles
Open Access Paper

Empowering clean water whilst safeguarding water distribution pipeline integrity: towards manganese- and iron-free lime hydrate for water treatment

Active and passive manganese and iron impurities in drinking water-grade lime hydrate are removed through redox treatment.

Graphical abstract: Empowering clean water whilst safeguarding water distribution pipeline integrity: towards manganese- and iron-free lime hydrate for water treatment
From the themed collection: Recent Open Access Articles
Open Access Paper

The formation of furan-like disinfection byproducts from phenolic precursors

Eleven furan-like disinfection byproducts were reported for the first time as byproducts from the chlorination of phenolic natural organic matter surrogates.

Graphical abstract: The formation of furan-like disinfection byproducts from phenolic precursors
From the themed collection: Recent Open Access Articles
Open Access Paper

Novel protein nanofibril–carbon hybrid adsorbent efficiently removes As(III), As(V) and other toxic elements from synthetic and natural waters in batch and rapid small-scale column tests

Novel adsorbents produced from β-lactoglobulin, a low-cost milk protein, have shown a high affinity to inorganic As(III) and As(V).

Graphical abstract: Novel protein nanofibril–carbon hybrid adsorbent efficiently removes As(iii), As(v) and other toxic elements from synthetic and natural waters in batch and rapid small-scale column tests
From the themed collection: Recent Open Access Articles
Open Access Paper

Sequential removal of nitrate and sulfate in woodchip and hematite – coated biochar bioreactor

The article demonstrates a method for the adaptation of denitrifying woodchip bioreactors for the removal of sulfate as well. Sulfate is removed by sulfate reduction and subsequent iron sulfide precipitation.

Graphical abstract: Sequential removal of nitrate and sulfate in woodchip and hematite – coated biochar bioreactor
From the themed collection: Recent Open Access Articles
Open Access Paper

Synthesis of magnetic nanoparticles with covalently bonded polyacrylic acid for use as forward osmosis draw agents

Multicoated magnetite magnetic nanoparticles (MNP) with polyacrylic acid as a terminal hydrophilic ligand showed reproducibility of the composite particles when used as a draw solution. The tight covalent bond allows MNPs to maintain their osmotic potential after filtration.

Graphical abstract: Synthesis of magnetic nanoparticles with covalently bonded polyacrylic acid for use as forward osmosis draw agents
From the themed collection: Recent Open Access Articles
Open Access Paper

Full-scale aerobic granular sludge for municipal wastewater treatment – granule formation, microbial succession, and process performance

A story of microbial community assembly and nutrient removal under fluctuational environmental conditions during start-up and operation of full-scale aerobic granular sludge.

Graphical abstract: Full-scale aerobic granular sludge for municipal wastewater treatment – granule formation, microbial succession, and process performance
From the themed collection: Recent Open Access Articles
Open Access Paper

Selecting a single powdered activated carbon against multiple threats: taste & odour and benzene

MIB and geosmin removal performance by 11 supplier-recommended powdered activated carbons varied by factor 3 to 4. Well performing carbons also effectively removed benzene traces.

Graphical abstract: Selecting a single powdered activated carbon against multiple threats: taste & odour and benzene
From the themed collection: Recent Open Access Articles
Open Access Paper

Efficacy of thermal hydrolysis for boosting specific methane yield depending on temperature-normalized solids retention time in an activated sludge process

Assessing the efficacy of thermal hydrolysis of waste activated sludge in terms of boosting specific methane yield by using a normalized solids retention time of the activated sludge process.

Graphical abstract: Efficacy of thermal hydrolysis for boosting specific methane yield depending on temperature-normalized solids retention time in an activated sludge process
From the themed collection: Recent Open Access Articles
Open Access Paper

Advances in predictive chemistry enable a multi-scale rational design approach for biofuels with advantaged properties

Process of building predictive gas-phase chemical mechanisms faster and less computationally intensive using state of the art automated chemical tools and linking the predicted chemical reactivity to underlying chemical structure information.

Graphical abstract: Advances in predictive chemistry enable a multi-scale rational design approach for biofuels with advantaged properties
From the themed collection: Recent Open Access Articles
Open Access Paper

Destruction of per/poly-fluorinated alkyl substances by magnetite nanoparticle-catalyzed UV-Fenton reaction

Novel economically-sustainable and environmentally-friendly technologies for per- and poly-fluoroalkyl substance (PFAS) destruction are becoming increasingly important as PFAS contamination has increased in drinking water throughout the globe.

Graphical abstract: Destruction of per/poly-fluorinated alkyl substances by magnetite nanoparticle-catalyzed UV-Fenton reaction
From the themed collection: Recent Open Access Articles
Open Access Paper

Advancing the understanding of mainstream shortcut nitrogen removal: resource efficiency, carbon redirection, and plant capacity

Shortcut nitrogen removal (SNR) reduces aeration, carbon, and alkalinity requirements, but the magnitude of this benefit is often overstated. SNR allows for upstream carbon diversion and anammox processes allow for significant WRRF capacity gains.

Graphical abstract: Advancing the understanding of mainstream shortcut nitrogen removal: resource efficiency, carbon redirection, and plant capacity
From the themed collection: Recent Open Access Articles
Open Access Paper

QSDsan: an integrated platform for quantitative sustainable design of sanitation and resource recovery systems

QSDsan is an open-source platform that integrates the design, simulation, and sustainability characterization of sanitation and resource recovery systems.

Graphical abstract: QSDsan: an integrated platform for quantitative sustainable design of sanitation and resource recovery systems
From the themed collection: Recent Open Access Articles
Open Access Paper

Environmental screening of water associated with shale gas extraction by fluorescence excitation emission matrix

We present a simple method for the screening of recovered water from shale gas extraction that can be used to avoid contamination incidents.

Graphical abstract: Environmental screening of water associated with shale gas extraction by fluorescence excitation emission matrix
From the themed collection: Recent Open Access Articles
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Please see below for recent Open Access papers published in Environmental Science: Water Research & Technology.

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