OOIR: Observatory of International Research

Papers

(The median citation count of Water Research X is 4. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-11-01 to 2025-11-01.)

Article	Citations
Effects of functional groups of polyfluoroalkyl substances on their removal by nanofiltration	129
Staggered supply of ferric citrate and oxygen as electron acceptors promote the co-recovery of vivianite and bioplastics PHB from wastewater	119
Evaluation of the process performance of comammox-like nitrospira dominant down-flow hanging sponge reactor with reduced nitrous oxide emissions	75
Mechanism insight into the facet-dependent photoaging of polystyrene microplastics on hematite in freshwater	71
Disinfection byproducts formed during drinking water treatment reveal an export control point for dissolved organic matter in a subalpine headwater stream	58
Efficient and sustainable removal of linear alkylbenzene sulfonate in a membrane biofilm: Oxygen supply dosage impacts mineralization pathway	55
Aquacultural source of nitrous oxide revealed by nitrogen isotopes	47
Start-up of a full-scale two-stage partial nitritation/anammox (PN/A) process treating reject water from high solid anaerobic sludge digestion (HSAD)	46
Emerging and legacy organophosphate flame retardants in the tropical estuarine food web: Do they exhibit similar bioaccumulation patterns, trophic partitioning and dietary exposure?	44
Making waves: Public health risks from arsenic in Mexico's water extraction practices	43
Gravity-driven membrane filtration with compact second-life modules daily backwashed: An alternative to conventional ultrafiltration for centralized facilities	40
A novel approach for accurate quantification of lake residence time — Lake Kinneret as a case study	36
Making waves: A vision for digital water utilities	36
Opportunities and challenges of tackling Scope 3 “Indirect” emissions from residential hot water	34
Treatment of burned soil leachates by ultrafiltration coupled with coagulation: Insights into membrane fouling	34
Spatial-economic scenarios to increase resilience to urban flooding	34
Nanoplastics are significantly different from microplastics in urban waters	34
Evaluating energy balance and environmental footprint of sludge management in BRICS countries	29
Removal of soluble divalent manganese by superfine powdered activated carbon and free chlorine: Development and application of a simple kinetic model of mass transfer–catalytic surface oxidation	24
Making Waves: A research agenda for supporting a WASH sustainability transformations approach to climate change	24
An integrated strategy for sequential nitrite removal and methane recovery: Sludge fermentation driven by nitrite reduction	23
Modulation of ultrathin nanosheet structure and nitrogen defects in graphitic carbon nitride for efficient photocatalytic bacterial inactivation	22
Effectiveness of three machine learning models for prediction of daily streamflow and uncertainty assessment	22
Mechanisms of N2O production in salinity-adapted partial nitritation systems for high-ammonia wastewater treatment	22
An electrochemical advanced oxidation process for the treatment of urban stormwater	21

Boosted brackish water desalination and water softening by facilely designed MnO2/hierarchical porous carbon as capacitive deionization electrode	20
Adaptive routing behaviors between “touch-go” and direct electron transfer of pyrogenic carbon to promote phosphorus recovery as vivianite	20
Machine learning-driven benchmarking of China's wastewater treatment plant electricity consumption	20
Perfluoroalkyl functionalized-Au nanoparticle sensor: Employing rate of spectrum shifting for highly selective and sensitive detection of per- and polyfluoroalkyl substances (PFASs) in aqueous environ	19
Wastewater tiling amplicon sequencing in sentinel sites reveals longitudinal dynamics of SARS-CoV-2 variants prevalence	19
Influence of pipe materials on in-building disinfection of P. aeruginosa and A. baumannii in simulated hot water plumbing	18
Continuous-flow phosphate removal using Cry-Ca-COS Monolith: Insights from dynamic adsorption modeling	17
Long-term onsite monitoring of a sewage sludge drying pan finds methane emissions consistent with IPCC default emission factor	16
An inconvenient impact: Unveiling the overlooked differences in crystalline forms of iron (hydro)oxides on anaerobic digestion	16
Autonomous online optimization of a closed-circuit reverse osmosis system	15
Enhancing accuracy and interpretability of multi-steps water demand prediction through prior knowledge integration in neural network architecture	15
A cellular automata coupled multi-objective optimization framework for blue-green infrastructure spatial allocation	15
Separating biological nutrient removal by EBPR-PN/A process to treat real municipal sewage	15
An overlooked nanofluids effect from Fe3O4 nanoparticles enhances mass transfer in anammox granular sludge	14
A two-stage partial nitritation-denitritation/anammox (PN-DN/A) process to treat high-solid anaerobic digestion (HSAD) reject water: Verification based on pilot-scale and full-scale projects	14
High-level nitrogen removal achieved by Feammox-based autotrophic nitrogen conversion	14
Characterization of acid-tolerant ammonia-oxidizing Nitrosospira bacteria suggests wide implementation of the acidic nitritation process	14
A probabilistic deep learning approach to enhance the prediction of wastewater treatment plant effluent quality under shocking load events	14
Micro- and nanoplastics in granular sludge systems: mechanisms of disruption, retention, and microbial adaptation in wastewater treatment technologies	13
Removal of perfluoroalkyl acids and common drinking water contaminants by weak-base anion exchange resins: Impacts of solution pH and resin properties	13
Decoupling locally enhanced electric field treatment (LEEFT) intensity and copper release by applying asymmetric electric pulses for water disinfection	13
Stagnation leads to short-term fluctuations in the effluent water quality of biofilters: A problem for greywater reuse?	13
Defense mechanism of Fe(III)-assisted anammox under salt stress: Performance and microbial community dynamics	13
A systematic review and meta-analysis of pathogen reduction in onsite sanitation systems	13
A unit process log reduction database for water reuse practitioners	12
Corrigendum to ‘Amyloid adhesin production in activated sludge is enhanced in lab-scale sequencing batch reactors: Feeding regime impacts microbial community and amyloid distribution’ [Water Research	12
The neglected ammonia leaching calcium in anaerobic granular sludge	12
Elucidating the complex hydrolysis and conversion network of xanthan-like extracellular heteropolysaccharides in waste activated sludge fermentation	12
Benchmarks for urine volume generation and phosphorus mass recovery in commercial and institutional buildings	11
New understanding of microbial growth cycle for efficient waste-activated sludge disposal by preserving microbial self-degradation activity during the decline phase	11
Enrichment and identification of a moderately acidophilic nitrite-oxidizing bacterium	11
Dual role of organic matter in Feammox-driven nitrogen and phosphate removal	11
Effects of biofilm formation on triclosan adsorption by UV-aged and pristine polystyrene microplastics in aquatic environments	11
Combined membrane aeration and filtration for energy- and space-efficient COD removal in water reuse	11
Identifying periods impacted by sewer inflow and infiltration using time series anomaly detection	11
Exploring the feasibility of high rate enhanced biological phosphorus removal system driven by diverse carbon source	10
Unexpectedly high antibacterial ability of water in copper pot with tiny amount of plant leaves	10
Model-based monitoring of diffuser fouling using standard sensors	10
A novel methodology to develop EU water reuse risk management plan in agricultural water distribution networks and crop irrigation systems	10
Research stories along the urban water cycle	10
Scattered and transmitted light as surrogates for activated carbon residual in advanced wastewater treatment processes: Investigating the influence of particle size	10
Application of organic silicon quaternary ammonium salt (QSA) to reduce carbon footprint of sewers: Long-term inhibition on sulfidogenesis and methanogenesis	10
Innovative solutions for valorization of desalination brine	10
A systematic decision-making framework for selecting nitrous oxide quantification methods in water utilities	9
Intelligent real-time pump scheduling in water distribution networks based on graph convolutional networks	9
Characterization of EPS subfractions from a mixed culture predominated by partial-denitrification functional bacteria	9
Evaluation of sealants to mitigate the release of per- and polyfluoroalkyl substances (PFAS) from AFFF-impacted concrete: Characterization and forecasting	9
Long short-term memory models of water quality in inland water environments	9
The interplay of suspended sediment concentration, particle size and fluid velocity on the rapid deposition of suspended iron oxide particles in PVC drinking water pipes	9
Overlooked role of long capping time and environmental factors in the plateau lake for impairing lanthanum-modified-bentonite's immobilization to phosphate	8

Making waves: Generative artificial intelligence in water distribution networks: Opportunities and challenges	8
Nitrite-dependent microbial utilization for simultaneous removal of sulfide and methane in sewers	8
Improving algal bloom modelling in eutrophic lakes by calibrating the General Lake Model with satellite remote sensing products	8
Novel ellipsoid-like granules exhibit enhanced anammox performance compared to sphere-like granules	8
Low temperature impact and HAP-enhanced one-stage partial nitritation/anammox process: Long-term stability, high-rate nitrogen removal, and operational strategies at 15°C	8
Biodegradation kinetics of organic micropollutants in biofilters for advanced wastewater treatment – Impact of operational conditions and biomass origin on removal	8
Heterogeneous microstructure induces floatation in high-rate anammox granules	8
Three years of wastewater surveillance for new psychoactive substances from 16 countries	7
Efficient utilization of photoelectron-hole at semiconductor-microbe interface for pyridine degradation with assistance of external electric field	7
Environmental Heterogeneity Altered the Growth Fitness of Antibiotic-Resistant Mutants and the Resistance Prevalence in Escherichia coli populations	7
A novel integrated biorefinery for enhancing municipal wastewater treatment	7
Properties of iron-bound organic carbon and its implications for the conservation of coastal wetland vegetation	7
Successful year-round mainstream partial nitritation anammox: Assessment of effluent quality, performance and N2O emissions	7
Hydrolysis capacity of different sized granules in a full-scale aerobic granular sludge (AGS) reactor	7
Why stories matter in water research: A case for narrative style paper writing	6
Sorghum-grown fungal biocatalysts for synthetic dye degradation	6
Effectiveness of cyclic treatment of municipal wastewater by Tetradesmus obliquus – Loofah biofilm, its internal community changes and potential for resource utilization	6
Making waves: Knowledge and data fusion in urban water modelling	6
How useful are data-driven methods for building-level greywater treatment from a process engineering perspective?	6
Water Research X is expanding its article types	6
Energy and Carbon Neutral Urban Water Management	6
Three-dimensional convolutional neural network for leak detection and localization in smart water distribution systems	6
UV LED wastewater disinfection: The future is upon us	6
Mitigating risks and maximizing sustainability of treated wastewater reuse for irrigation	6
Revealing critical pipes in water networks through integrated edge centrality and multi-criteria vulnerability analysis	6
A new Digital Harmony Search algorithm for optimizing Pump Scheduling in Water Distribution Networks	6
The role of calcium in anaerobic treatment: The good, the bad and the ugly	6
Irrigation systems as reservoirs of diverse and pathogenic Pseudomonas syringae strains endangering crop health	6
Making waves: Why do we need ultra-permeable nanofiltration membranes for water treatment?	5
Nitrogen excess induces cytokinesis arrest and alters lipid metabolism in the bloom-forming desmid Cosmarium tinctum	5
Quadrupling the capacity of post aerobic digestion treating anaerobically digested sludge using a moving-bed biofilm (MBBR) configuration	5
Modeling the energy consumption of potable water reuse schemes	5
How does the sewer microbiome impact wastewater surveillance for antibiotic resistance?	5
Single CSTR can be as effective as an SBR in selecting PHA-storing biomass from municipal wastewater-derived feedstock	5
Microbial mixotrophic denitrification using iron(II) as an assisted electron donor	5
A high-performance approach with cellular automata framework and GPU parallelization for real-time waterflows and pollutant transport simulations of pluvial and fluvial floods	5
Efficient smartphone-based measurement of phosphorus in water	5
A positive contribution to nitrogen removal by a novel NOB in a full-scale duck wastewater treatment system	5
Sewage sludge derived biochar for environmental improvement: Advances, challenges, and solutions	5
Laboratory performance assessment of low-cost water level sensor for field monitoring in the tropics	5
Uncovering the diverse hosts of tigecycline resistance gene tet(X4) in anaerobic digestion systems treating swine manure by epicPCR	5
Compartment-specific effect of sulfamethoxazole at low μg/L concentrations on microbial nitrogen assimilation in a river system	5
Upgrading waste activated sludge into valuable biosolids via an integrated biochemical approach	5
Amyloid adhesin production in activated sludge is enhanced in lab-scale sequencing batch reactors: Feeding regime impacts microbial community and amyloid distribution	5
Carbon footprint analysis of wastewater treatment processes coupled with sludge in situ reduction	5
Towards stable and efficient nitrogen removal in wastewater treatment processes via an adaptive neural network based sliding mode controller	5
Aquaculture bacterial pathogen database: Pathogen monitoring and screening in coastal waters using environmental DNA	4
Effluent quality soft sensor for wastewater treatment plant with ensemble sparse learning-based online next generation reservoir computing	4
Unstructured mesh-based graph neural networks for estimating the spatiotemporal distribution of a human-induced chemical in freshwater	4
Why are decentralised urban water solutions still rare given all the claimed benefits, and how could that be changed?	4
Leveraging multi-level correlations for imputing monitoring data in water supply systems using graph signal sampling theory	4
Rapid and selective quantitative colourimetric analysis of nitrite in water using a S-Nitrosothiol based method	4
Water demand forecasting in multiple district metered areas based on a multi-scale correction module neural network architecture	4
Comparative enrichment of complete ammonium oxidation bacteria in floccular sludge reactors: Sequencing batch reactor vs. continuous stirred tank reactor	4
Real-time detection of 3–8-µm microbial particles in sand filter effluent as a surrogate indicator of Cryptosporidium parvum oocysts	4
Underestimation of SARS-CoV-2 in wastewater due to single or double mutations in the N1 qPCR probe binding region	4
Real-Time pH Monitoring and Machine Learning Prediction of Phosphorus Precipitation Kinetics in Urine Systems	4
A cohesive Microcoleus strain cluster causes benthic cyanotoxic blooms in rivers worldwide	4
A novel approach to interpret quasi-collimated beam results to support design and scale-up of vacuum UV based AOPs	4