OOIR: Observatory of International Research

Papers

(The H4-Index of Environmental Technology & Innovation is 56. 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 2022-01-01 to 2026-01-01.)

Article	Citations
The nitrate cycling process in a through-flow lake under the water transfer project: Insights from multiple isotopes	1117
Effects of different particle size microplastics and di-n-butyl phthalate on photosynthesis and quality of spinach	376
Simultaneous veterinary antibiotics reduction and biomass production from pig slurry by microalgae co-immobilization in moving bed biofilm reactors	362
An effective global biochar application strategy for reducing global cropland nitrogen emissions without compromising crop yield: Findings from a global meta-analysis and density functional theory cal	244
Bone char outperforms biochar in phosphorus-deficient soils: Comparative analysis of soil fertility enhancement and greenhouse gas mitigation	228
Non-woven sorbent based on recycled jute fibers for efficient oil spill clean-up: From production to biodegradation	206
A tri-layer floating photocatalyst/adsorbent for the removal of organic compounds from wastewater: Layer-by-layer deposition of silicalite-1 and titania on hollow glass microspheres	190
Nutritional ingredients and fertilizer potential of the dewatering effluent after sludge wet air oxidation	179
Optimizing calculation method for zeolite unit thickness of a permeable reactive barrier coupling adsorption with simultaneous nitrification-denitrification for landfill leachate polluted groundwater	176
Ferrallisols fertility and crops safety improvement using a low-cost synthetic mineral	157
Screening and characterization of bioflocculant isolated from thermotolerant Bacillus sp. ISTVK1 and its application in wastewater treatment	145
Investigation of push-flow aeration on improving water quality in urban lakes	144
The development and application of Cu@TiO2@SAPO-34 as better photocatalyst towards degradation of various pollutants	134
Study on the adsorption efficiency and mechanism of Sb(V) in aqueous solutions using enhanced surfactant-modified iron-calcium composite	124
In situ field experiment shows the potential of methanogenic archaea for biomethane production from underground gas storage in natural rock environment	114
Rethinking household food waste quantification: Increasing accuracy and reducing costs through automation	110
Metal(loid)s, phthalate esters and polycyclic aromatic hydrocarbons in Croatian natural mineral waters: Regulatory compliance and associated health risk	109
Fertilizer nitrogen substitution using biochar-loaded ammonium-nitrogen reduces nitrous oxide emissions by regulating nitrous oxide-reducing bacteria	104
Activated calcium-rich serpentine tailings and their superefficient removal for arsenite, arsenate and cadmium	103
Transformation of aqueous methyl orange to green metabolites using bacterial strains isolated from textile industry effluent	102
Vermicomposting of patchouli bagasse—A byproduct of essential oil industries employing Eisenia fetida	102
Biological remediation mechanism and applications of Rhodotorula mucilaginosa for heavy metal pollution	96
Removal of copper(II) from aqueous solution using zinc oxide nanoparticle impregnated mixed matrix hollow fiber membrane	93
Toxicological effects of polystyrene nanoplastics on marine organisms	92
Walnut shell biochar based sorptive remediation of estrogens polluted simulated wastewater: Characterization, adsorption mechanism and degradation by persistent free radicals	91

Effect of mineral additives and ammonia-oxidizing bacteria additions on physicochemical properties, nitrogen retention and microbial dynamics during vermicomposting of chicken manure and green waste	91
Application of activated carbon-immobilized laccase for tetracycline degradation	91
Ecological effects of soil physicochemical properties and copper speciation on the microbial properties associated with land use management in cacao production	90
Hydrophobic and oleophilic amine-functionalised graphene/polyethylene nanocomposite for oil–water separation	88
Exploring Insect-based technology for waste management and livestock feeding in selected South and East Asian countries	86
Is achieving environmental sustainability dependent on information communication technology and globalization? Evidence from selected OECD countries	85
Effect of aeration rate, aeration pattern, and turning frequency on maturity and gaseous emissions during kitchen waste composting	85
Multivariate insights into the effects of inoculating thermophilic aerobic bacteria on the biodegradation of food waste: Process properties, organic degradation and bacterial communities	80
Fabrication of novel Ti/SnO2-Nb2O5 electrode in comparison with traditional doping metal oxides for electrochemical textile wastewater treatment	79
Circular economy in territorial planning strategy: Incorporation in cluster activities and economic zones	79
Bridging hydroponic and soil studies: Subcellular partitioning and soil factors govern the uptake and accumulation of fluindapyr in rice	78
Fertilization changes nitrogen and carbon concentrations in saline-alkali paddy soil and their relationship with gas emissions: An analysis from the perspective of functional genes	78
Simultaneous nutrition removal and high-efficiency biomass accumulation by microalgae using cattle wastewater	77
Facile synthesis of carbon nitride nanotube confined nano Fe0 for boosting activation of peroxymonosulfate towards tetracycline removal	77
Nutrients elimination from meat processing wastewater using Scenedesmus sp.; optimizations; artificial neural network and kinetics models	74
Adsorption of Sb(V) in wastewater by Fe/Mn binary oxides loaded sludge derived activated carbon: Performance, mechanisms and applicability	72
Enhancing spinach growth and soil microbial health under sulfadiazine and polypropylene exposure through zinc fortification	65
Evaluation of best management practices (BMPs) for mitigating non-point source pollution in the Wang River Basin of Thailand based on the SWAT Model	65
Distribution and occurrence of microplastics in wastewater treatment plants	63
Protein production from cellulosic waste using candida utilis	63
Assessment of soil microbial communities and diversity in typical coastal wetlands along a succession gradient: Implications for reconstructing the long-term evolution of coastal wetlands	61
Adsorption of rhodamine B on polyvinyl chloride, polystyrene, and polyethylene terephthalate microplastics in aqueous environments	61
Pelletization of soil amendment: Optimizing the production and quality of soil amendment pellets from compost with water and biochar mixtures and their impact on soil properties	61
Reliability of CO2 emissions for assessing the carbon sequestration effect of biochar and its co-application with fertilizer	60
Corrosion effect of acid/alkali on cementitious red mud-fly ash materials containing heavy metal residues	60
Comprehensive feasibility analysis of carbon dioxide hydrate sequestration: A numerical study based on horizontal well networks	60
TLR2 modulates bronchial epithelial cell senescence in smoking-induced COPD via IGFBP3 through ERK and NF-κB pathways	60
o-Phenylenediamine derived carbon dots enable microfluidic-fluorometric detection of Chromium(VI) via charge transfer	59
Insights into Fe(II) speciation influence on kinetics, microbial networks, and metabolism in Fe(II) oxidation coupled with carbon assimilation in paddy soil	59
Applying biochar to treat and detoxify whisky distillery effluent	58
Electroprecipitation technology for nutrient recovery: Unlocking wastewater's potential	57
Sustainable application of rare earth elements (lanthanum and cerium) to enhance growth and nutrient uptake in Paramichelia baillonii seedlings via hormonal regulation	56
Decarbonizing photovoltaic glass manufacturing in China: A factory-specific carbon footprint analysis	56