OOIR: Observatory of International Research

Papers

(The median citation count of Water Research X is 3. 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 2021-09-01 to 2025-09-01.)

Article	Citations
Efficient and sustainable removal of linear alkylbenzene sulfonate in a membrane biofilm: Oxygen supply dosage impacts mineralization pathway	124
Aquacultural source of nitrous oxide revealed by nitrogen isotopes	120
Evaluation of the process performance of comammox-like nitrospira dominant down-flow hanging sponge reactor with reduced nitrous oxide emissions	78
Disinfection byproducts formed during drinking water treatment reveal an export control point for dissolved organic matter in a subalpine headwater stream	62
Staggered supply of ferric citrate and oxygen as electron acceptors promote the co-recovery of vivianite and bioplastics PHB from wastewater	62
Mechanism insight into the facet-dependent photoaging of polystyrene microplastics on hematite in freshwater	58
Effects of functional groups of polyfluoroalkyl substances on their removal by nanofiltration	46
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
Gravity-driven membrane filtration with compact second-life modules daily backwashed: An alternative to conventional ultrafiltration for centralized facilities	44
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	39
A novel approach for accurate quantification of lake residence time — Lake Kinneret as a case study	37
A data-driven early warning system for Escherichia coli in water based on microbial community analysis using flow cytometry 2D histograms	36
Treatment of burned soil leachates by ultrafiltration coupled with coagulation: Insights into membrane fouling	36
Nanoplastics are significantly different from microplastics in urban waters	35
Making waves: A vision for digital water utilities	34
Opportunities and challenges of tackling Scope 3 “Indirect” emissions from residential hot water	34
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	31
Spatial-economic scenarios to increase resilience to urban flooding	24
Making Waves: A research agenda for supporting a WASH sustainability transformations approach to climate change	23
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
Mechanisms of N2O production in salinity-adapted partial nitritation systems for high-ammonia wastewater treatment	22
Effectiveness of three machine learning models for prediction of daily streamflow and uncertainty assessment	21
Evaluating energy balance and environmental footprint of sludge management in BRICS countries	20

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

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