ACS Sustainable Resource Management最新文献

{"title":"From Spent Catalysts to Smart Windows: Recovery of Vanadium for Use in Advanced Thermochromic Coatings","authors":"Lisa Royer,&nbsp;Kimberly F. D. Timmers,&nbsp;Jordi Volders,&nbsp;Cindy Po Keh Yeung,&nbsp;Jörgen Sweelssen,&nbsp;Eric J. C. Wester,&nbsp;Hubertus A. Smits,&nbsp;Wouter Marchal,&nbsp;Annelies Sels,&nbsp;Daniel Mann,&nbsp;Pascal Buskens","doi":"10.1021/acssusresmgt.6c00325","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00325","url":null,"abstract":"<p>Vanadium is a transition metal widely used in steel production, batteries, and catalysis. It is a critical material and its disposal poses significant environmental challenges, making recovery and reuse a necessity. This study presents an innovative approach for the recovery and reuse of vanadium from spent catalysts, transforming it into high-purity V₂O₅ as the precursor for advanced VO₂-based thermochromic coatings for smart windows. A multistep process comprising reductive acid leaching, oxidation, and selective precipitation was employed to develop two recovery pathways, resulting either in high-purity vanadium pentoxide (total metallic impurities of 2.14 ppm; extraction yield = 26%) or in a high extraction yield of 72% (total metallic impurities = 1.78%). The material was subsequently converted to monoclinic VO₂ and applied for the production of a thermochromic solar control coating for smart windows. Optical measurements revealed a visible transmittance of 55% and a solar modulation of 4.4%, consistent with values for state-of-the-art VO₂ coatings prepared by chemical reduction of virgin V₂O₅. This process demonstrates the technical feasibility of recovering vanadium from spent catalysts and reuse it in functional materials for smart windows, contributing to resource efficiency and environmental sustainability.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2870–2881"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148815653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"C2/C1 Carbon–Redox Integration for Low-Carbon Production in Yarrowia lipolytica","authors":"Filipe Smith Buarque,&nbsp;Lucas T. N. da Silva Rocha,&nbsp;Priscilla Amaral,&nbsp;Maria Alice Zarur Coelho","doi":"10.1021/acssusresmgt.6c00357","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00357","url":null,"abstract":"<p>Low-carbon production requires feedstock platforms capable of connecting waste-carbon and CO₂-derived intermediates with microbial production while allowing structural carbon supply and reducing-power delivery to be tuned independently. This perspective proposes C2/C1 carbon–redox integration as an emerging strategy for <em><em>Yarrowia lipolytica</em></em> bioproducts. Acetate is positioned as a C2 structural-carbon input for acetyl-CoA-dependent metabolism. Formate is evaluated mainly as a soluble C1 input that supports redox balance and carboxylation through FDH-driven NADH generation and CO₂/HCO₃-linked metabolism. Acetate is the more established C2 input for product formation in <em>Y. lipolytica</em>. In the other hand, formate remains a more specialized C1 intensification input for pathways constrained by redox balance or carboxylation demand. However, industrial translation is still limited by weak-acid toxicity, pH control, salt accumulation, oxygen-transfer demand, NADH/NADPH imbalance, and feedstock purity. In addition, side-by-side benchmarking against C6 substrates and other low-carbon feedstocks. Thus, future studies should move from empirical co-feeding toward quantitative carbon–electron matching, process control, and integrated techno-economic and life-cycle validation<strong>.</strong></p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2522–2531"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148815697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Circular Resource Utilization of Waste-Derived Carbon Nano-Onions for Industry-Optimized Dye Removal via Response Surface Methodology","authors":"Diwakar Patel,&nbsp;Meenu Chhabra,&nbsp;Ravi Kumar Sonwani,&nbsp;Kumud Malika Tripathi","doi":"10.1021/acssusresmgt.6c00021","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00021","url":null,"abstract":"<p>Challenges persist in the low-cost, effective, and environmentally friendly elimination of diverse and complex contaminants from wastewater. Herein, green-synthesized carbon nano-onions (CNOs) are employed as a high-performance adsorbent to remove Rhodamine B from wastewater in a circular economy approach. CNOs are synthesized from waste cooking oil using a wick pyrolysis technique at room temperature without the need for sophisticated instruments and high-temperature processing. Response surface methodology is adopted to validate the stimulus of temperature, pH, and concentration change. Further, several batch experiments related to adsorption thermodynamics, isotherms, and kinetics were done for the validation of process practicability. The extremely good removal of Rhodamine B (∼99%) was obtained at a pH of 6.5. The practical applicability of CNOs was verified by Rhodamine B removal from various sources of water. In addition, the regeneration of the CNOs showed ∼97.19% RhB removal after five cycles, showing the sustainability and economic aspect of CNOs for applications in industrial wastewater treatment.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2582–2593"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148815735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Valorization of Industrial Waste Sludge via Defect Engineering: Oxygen Vacancy Mediated Enhancement in Water Splitting, Energy Storage, and Photocatalytic Performance","authors":"Rajiv Kashyap,&nbsp;Aman Chauhan,&nbsp;Anjali Leal,&nbsp;Archana Negi,&nbsp;Sahil Kapoor,&nbsp;Ganga Ram Chaudhary,&nbsp;Ramesh K Sharma","doi":"10.1021/acssusresmgt.6c00258","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00258","url":null,"abstract":"<p>Sustainable management of potentially hazardous industrial waste persists as a major remediation challenge across the globe. Herein, we have demonstrated a sustainable design strategy that not only provides a remediation of industrial waste but also utilizes the same in a multifunctional manner as a strategic component of several energy and remediation-related assemblies. Precisely, waste sludge of electrochemical industries was collected and appropriately conditioned to induce lattice defects and oxygen vacancies. The conditioned sludge was adequately characterized and was revealed to possess highly enriched metallic content. Both the oxygen vacancies and the high metallic/metal oxide content enhanced the textural and electronic attributes of the sludge-derived materials, which was validated using different applications. For the energy generation aspect, the sludge material was applied to develop a hydroelectric cell, which exhibited an excellent power of 13.6 W/m² with an open circuit voltage of 0.9 V. Besides, the conditioned sludge was applied as a supercapacitor and displayed excellent performance with a maximum capacitance of 338 F/g, and a maximum energy density of 53 Wh/kg was observed with 91% capacitance retention up to 2000 cycles. Furthermore, the defect-engineered sludge was also tested as a photocatalytic material and performed excellently for treating a model water contaminant, methylene blue (MB), under sunlight exposure. With these outcomes, this study shows that not only industrial waste materials can be sustainably treated but they can also be strategically harnessed to develop multifunctional conjugates to tackle several critical challenges persisting in the energy and remediation related sectors.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2790–2800"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148815791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carbonic Anhydrase Immobilization on Stabilized Lignin Nanoparticles for Aqueous-Phase Carbon Dioxide Capture","authors":"Unnimaya Thalakkale Veettil,&nbsp;Maja-Stina Svanberg Frisinger,&nbsp;Terence Infant,&nbsp;Matilda Andersson,&nbsp;Niklas Hedin,&nbsp;Mika H. Sipponen","doi":"10.1021/acssusresmgt.6c00267","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00267","url":null,"abstract":"<p>The continuous rise in atmospheric carbon dioxide (CO₂) concentration and its contribution to global climate change necessitate the development of sustainable CO₂ capture technologies. Enzyme-based CO₂ capture systems, particularly those using carbonic anhydrase (CA), offer high catalytic efficiency, but their practical use is limited by high enzyme costs, reduced enzyme stability, and the difficulty of recovering them from water-based systems. Here, we report the immobilization of CA via straightforward adsorption onto sustainable and covalently stabilized lignin nanoparticles (sLNPs) for catalyzing aqueous-phase CO₂ capture. The immobilized enzyme exhibited slightly higher specific activity than the free enzyme at technically important pH 9.0, which suggests that pH-stable sLNPs may contribute to stabilizing carbonic anhydrase within its microenvironment. The catalytic performance of the system was evaluated in a stopped-flow reactor by measuring CO₂ hydration at pH 7.1 and 9.4 across temperatures between 30–60 °C, using the colorimetric response of pH-sensitive dyes. The reaction kinetics at pH 7.1 showed an Arrhenius-type temperature dependence, while non-Arrhenius behavior was observed at pH 9.4. Enzyme immobilization enhanced aqueous absorption of CO₂, as shown by stirred-cell fall-in-pressure measurements at 40 and 60 °C. These results support the development of scalable biocatalytic systems for CO₂ capture in aqueous media using CA.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2819–2829"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148815675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SiCl4-Assisted Calcination Strategy for Lithium Recovery and Regeneration of Cathodes","authors":"Mengting Li,&nbsp;Xucun Ye,&nbsp;Fengyin Zhou,&nbsp;Huayi Yin,&nbsp;Lawrence Yoon Suk Lee","doi":"10.1021/acssusresmgt.6c00219","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00219","url":null,"abstract":"<p>The rapid growth of lithium-ion battery (LIB) deployment has intensified the need for efficient and sustainable recycling of spent cathodes. This work introduces a silicon tetrachloride (SiCl₄)-assisted calcination strategy that repurposes SiCl₄, a hazardous byproduct of the photovoltaic industry, as an effective low-temperature chlorinating agent for metal recovery from spent Ni-rich cathodes. Thermodynamic analysis indicates spontaneous chlorination reactions initiated by preferential Li extraction, followed by stepwise gas−solid propagation converting Ni, Co, and Mn into soluble chlorides, while generating phase-pure SiO₂ as a benign byproduct. Under optimized conditions (500 °C, SiCl₄:cathode = 3:1, 25 and 40 min), leaching efficiencies exceed 95% for Li, Ni, Co, and Mn from NCM622 and LMO, and similarly high recovery is achieved for unsorted mixed cathodes. The recovered metals are resynthesized into phase-pure NCM622 and LMO <em>via</em> coprecipitation and sol−gel routes, delivering 166.7 and 116.9 mAh g⁻¹ at 1 C with 90 and 82% capacity retention after 100 cycles, respectively, comparable to pristine analogues. Techno-economic and life-cycle assessments using the EverBatt model reveal reduced energy consumption, greenhouse gas emissions, and processing costs compared with conventional methods. This SiCl₄-assisted calcination offers a sustainable, high-value, and circular approach for LIB cathode resynthesis while bridging photovoltaic and battery material loops.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2730–2740"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148815688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-Throughput Graphite Recovery from Battery Anode Scrap, Impacts of Using In-Line Near-Infrared Processing on Material Integrity","authors":"Wafaa Al-Shatty,&nbsp;Oriyomi O. Ogunbanjo,&nbsp;Harrison Fell,&nbsp;Oli Fryatt,&nbsp;Pierrot S. Attidekou,&nbsp;Gavin Harper,&nbsp;Paul A. Anderson,&nbsp;Davide Deganello,&nbsp;Jenny Baker","doi":"10.1021/acssusresmgt.6c00237","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00237","url":null,"abstract":"<p>Graphite, the predominant anode material in lithium-ion batteries (LIBs), accounts for a substantial share of both battery mass and cost. However, the recycling of graphite anodes remains energetically and technically challenging since residual binders and electrically conductive additives hinder effective material recovery and can degrade reusability and electrochemical performance. This work outlines a new thermal approach to regenerate graphite anodes based on near-infrared (NIR) irradiation, which enables rapid binder deactivation, and benchmarks its performance against conventional furnace heat treatment. Model graphite anode composites comprising graphite, carbon black, and representative aqueous binders (carboxymethyl cellulose and styrene–butadiene rubber) were prepared and subjected to a range of furnace and NIR exposure conditions. Our results demonstrate that furnace treatment at 450–470 °C for 60–120 min and NIR irradiation at 100% intensity for only 15.6 s at a line speed of 2 m/minute can effectively deactivate binders without compromising the graphite crystal structure. In terms of electrochemical performance, the NIR-regenerated graphite (G–N100) delivered an initial specific capacity of 354.1 mAh g^–1 at 10 mA g^–1 and retained 99.9% of its capacity after 20 cycles; this represents a specific capacity that is 99.4% of pristine graphite (356.0 mAh g^–1) under the same conditions. In contrast, furnace-regenerated samples (G–470 and G–450) exhibited higher specific capacities of 374.7 and 373.7 mAh g^–1 at 10 mA g^–1, slightly exceeding that of pristine graphite. This work demonstrates that NIR irradiation can provide a selective, ultrafast thermal route to decompose binder additives while also preserving the graphite structure and electrochemical performance with greenhouse gas emissions of 0.4 kgCO_2e/kg compared with between 1.4 and 9 kgCO_2e/kg for virgin anode grade graphite.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2751–2765"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cost-Effective Chemical Upgradation of Plastic Pyrolysis Oil for Engine Applications: Performance Evaluation as a Diesel Blend","authors":"Chandan K. Munagala,&nbsp;Bablu Alawa,&nbsp;Syed Mohammed Razak,&nbsp;Harsha Nagar,&nbsp;Sankar Chakma,&nbsp;Vineet Aniya","doi":"10.1021/acssusresmgt.6c00163","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00163","url":null,"abstract":"<p>This study evaluates upgraded waste plastic pyrolysis oil (UWPO) as a sustainable alternative fuel to address the dual challenges of increasing energy demand and plastic waste accumulation. The novelty of this work lies in the development of an energy-efficient and cost-effective chemical upgrading strategy that enhances the fuel quality of waste plastic pyrolysis oil without relying on conventional high-pressure hydrogenation or energy-intensive refining processes, thereby improving its suitability for compression ignition engines. The upgraded oil was comprehensively characterized for key physicochemical properties, including density, gross calorific value, flash point (10 °C), fire point (14 °C), pour point (–4 °C), and viscosity (1.08 cSt), demonstrating improved fuel handling and storage characteristics. Engine performance, combustion, and emission analyses were conducted using 10% (UWPO10) and 20% (UWPO20) UWPO blends with commercial diesel. Comparative evaluation showed that commercial diesel exhibited the highest brake thermal efficiency (33.86%), whereas UWPO20 achieved 27.80%, indicating a moderate reduction in efficiency at higher blend ratios. Similarly, brake specific fuel consumption increased from 6.353 × 10^–5 kg kW^–1 s^–1 for diesel to 7.804 × 10^–5 kg kW^–1 s^–1 for UWPO20. However, UWPO10 exhibited the highest mechanical efficiency (92.87%), surpassing both commercial diesel (87.47%) and UWPO20 (88.59%), while both blends showed reduced air–fuel ratios, indicating improved combustion characteristics. To evaluate industrial feasibility, a techno-economic analysis of a 10 TPD waste plastic pyrolysis and oil upgrading facility was performed, demonstrating the economic viability of the proposed process with favorable production economics compared with conventional fossil-derived fuels. Overall, the study establishes chemically upgraded waste plastic pyrolysis oil as a promising diesel blending component and provides an integrated technical and economic framework for sustainable plastic waste valorization, supporting circular economy and low-carbon energy initiatives.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2702–2713"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148815674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Regenerable Ni-Substituted Perovskite Catalysts for CO2 Reforming of Plastic Pyrolysis Gas: Mechanistic Insights via Lattice Oxygen Restoration","authors":"Qihui Song,&nbsp;Baojun Huang,&nbsp;Guijin He,&nbsp;Bingyan Sun,&nbsp;Jing Su,&nbsp;Kaige Wang","doi":"10.1021/acssusresmgt.6c00286","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00286","url":null,"abstract":"<p>The synergistic valorization of CO₂ and waste plastics offers a sustainable route for simultaneous carbon utilization and plastic upcycling, yet catalyst deactivation remains a major challenge. Herein, LaFe_{1–<em>x</em>}Ni_<em>x</em>O₃ perovskites were developed for CO₂-assisted reforming of plastic pyrolysis gas at 900 °C. LaFe_0.5Ni_0.5O₃ exhibited optimal performance, achieving a syngas yield of 170.84 mmol g<span><span>^–1_pp</span></span>, a specific CO₂ valorization of 38.60 mmol g<span><span>^–1_pp</span></span>, and an apparent carbon conversion of 149.85%. Structural characterization revealed that the superior activity originated from the synergistic interaction of in situ exsolved Fe–Ni alloy nanoparticles, oxygen vacancies, and lattice oxygen. Cycling experiments demonstrated that catalyst deactivation is primarily caused by progressive depletion of the lattice oxygen reservoir, whereas air regeneration restores both the perovskite structure and lattice oxygen, maintaining stable catalytic performance over ten regeneration cycles. Furthermore, the catalyst exhibited comparable syngas production from a mixed real-polyolefin feedstock, demonstrating its practical applicability. These findings establish the central role of lattice oxygen dynamics in catalyst activity, deactivation, and regeneration, providing mechanistic guidance for designing regenerable catalysts for CO₂-assisted plastic waste valorization.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2840–2849"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148815689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Toward Climate-Responsive Ocean–Terrestrial Biorefineries: Integrating Algae and Agricultural Residues for Circular Bioeconomies","authors":"Alberto J. Núñez-Selles,&nbsp;Yvette Smith-Pujols,&nbsp;Virginia Flores-Sasso,&nbsp;Alejandro J. Abril-González,&nbsp;Yessica A. Castro,&nbsp;Sarra Gaspard,&nbsp;Patricia Taillandier,&nbsp;Hélène Roux-de Balmann,&nbsp;Virginie Vandenbossche,&nbsp;Isabelle Polaert,&nbsp;Yusmel Gonzalez-Hernandez,&nbsp;Rafik Balti,&nbsp;Ulises Jauregui-Haza","doi":"10.1021/acssusresmgt.6c00182","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00182","url":null,"abstract":"<p>This paper evaluates climate-responsive biorefineries that integrate pelagic <em>Sargassum</em> with agricultural residues to advance circular bioeconomies. Building on scientific priorities emphasized at the 2025 One Ocean Science Congress and emerging policy directions from the draft resolution of the United Nations Environment Agency (UNEA-7) aimed at strengthening global responses to the large influxes of <em>Sargassum</em>, we explore various technological pathways—biochemical, thermochemical, and hybrid—as well as the deployment barriers for coupled ocean-terrestrial biomass systems. A comparative framework was applied to biochemical (enzymatic hydrolysis and anaerobic digestion) and thermochemical (pyrolysis and hydrothermal liquefaction) pathways, incorporating heat transfer modeling to account for the high moisture content of marine biomass. Life cycle assessment demonstrated that hybrid systems achieved up to 35% lower greenhouse gas emissions compared to single-feedstock facilities, while techno-economic analysis estimated processing costs of USD 120–150 per ton of biomass under technology readiness level (TRL) 4 conditions. Results highlight operational challenges, including slagging and fouling in thermochemical reactors due to elevated ash and salt fractions, and variability in syngas composition between agricultural residues and algae blends. The findings underscore the need for modular, adaptive system designs and targeted engineering strategies to transition toward TRL 5 prototypes. We concluded that coupling algae and agricultural residues can support SDG 14 and circular bioeconomies, provided that adaptive preprocessing, heat transfer engineering, and contaminant management are addressed. This work positions algae–agricultural residue integration as a viable pathway linking ocean health, climate mitigation, and resource recovery.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2493–2506"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}