OOIR: Observatory of International Research

Papers

(The H4-Index of Reviews in Environmental Science and Bio-Technology is 31. 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 2021-06-01 to 2025-06-01.)

Article	Citations
Grape pomace, an undervalued by-product: industrial reutilization within a circular economy vision	171
Phytoremediation for the indoor environment: a state-of-the-art review	164
Biodegradation of per- and polyfluoroalkyl substances: microbes, enzymes and their interactions	98
Prospect of utilizing coal mine drainage sludge as an iron source for value-creating applications	74
AnMBR technology for landfill leachate treatment: a framework towards improved performance	68
Retention of soil organic matter by occlusion within soil minerals	52
A review of data-driven modelling in drinking water treatment	51
Prospective bioconversion of CO2 and CO into fine chemicals via halophilic purple phototrophic bacteria	50
A critical review of experimental and CFD techniques to characterize the mixing performance of anaerobic digesters for biogas production	50
Chemical oxidation as an alternative for municipal wastewater secondary treatment: a review	48
The uptake and in-vivo migration of Hg by plants: a critical review	45
A review of the factors affecting the performance of anaerobic membrane bioreactor and strategies to control membrane fouling	45
Supercritical water technology: an emerging treatment process for contaminated wastewaters and sludge	44
Hybrid ion exchange and biological processes for water and wastewater treatment: a comprehensive review of process applications and mathematical modeling	44
A review of anaerobic digestion of slaughterhouse waste: effect of selected operational and environmental parameters on anaerobic biodegradability	42
Conversion of waste into organo-mineral fertilizers: current technological trends and prospects	42
Biological perspectives in geotechnics: theoretical developments	41
The role of the sewer system in estimating urban emissions of chemicals of emerging concern	41
Recent trends in Ni(II) sorption from aqueous solutions using natural materials	41
Biogenesis of thiosulfate in microorganisms and its applications for sustainable metal extraction	40
Biogeochemical cycle and isotope fractionation of copper in plant–soil systems: a review	39
Dissimilatory nitrate reduction to ammonium has a competitive advantage over denitrification under nitrate-limited conditions	38
Biotechnological advances in Bacillus thuringiensis and its toxins: Recent updates	37
Nanocellulose from agro-waste: a comprehensive review of extraction methods and applications	37
Treatment of olive mill wastewater by adsorption of phenolic compounds	37

Biochar: a potential and green adsorbent for antibiotics removal from aqueous solution	37
Chemical composition and industrial applications of Maritime pine (Pinus pinaster Ait.) bark and other non-wood parts	35
Manganese bioleaching: an emerging approach for manganese recovery from spent batteries	34
Filamentous nitrogen-fixing cyanobacteria: contributing to filling nitrogen and water gaps in a context of climate change	33
Elucidating electron transfer pathways in N2OR catalysis for mitigation of N2O emissions: a comprehensive review	33
Functional and molecular approaches for studying and controlling microbial communities in anaerobic digestion of organic waste: a review	31
Valorization of wastewater from food industry: moving to a circular bioeconomy	31
Harnessing economical biopolymer extrusion: the Bacillus clade as endotoxin-free platforms for next-generation bioprocesses	31
Current progress on the biodegradation of synthetic plastics: from fundamentals to biotechnological applications	31