ACS Sustainable Resource Management最新文献

{"title":"Green Chemical Engineering for a Net-Zero Future: Integrating Circular Economy Principles with a Sustainable Process Design","authors":"Sukhendu Dey,&nbsp;Megha Santra,&nbsp;Apurba Ratan Ghosh,&nbsp;Kamalesh Sen","doi":"10.1021/acssusresmgt.6c00440","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00440","url":null,"abstract":"<p>The growing urgency to achieve climate neutrality and resource-efficient industrial development has positioned green and low-carbon chemical engineering at the center of global sustainability efforts. Although significant advances have been made in circular economy (CE) strategies, renewable feedstocks, carbon management, and process decarbonization, these developments are often examined independently, resulting in a fragmented understanding of their collective potential for sustainable chemical manufacturing. This perspective addresses this gap by providing an integrated assessment of CE principles and low-carbon process engineering strategies that support the transition from conventional linear production systems to circular and carbon-neutral manufacturing frameworks.</p><p>The perspective examines key CE approaches, including material circularity, industrial symbiosis, resource recovery, and circular product design, alongside challenges related to technological maturity, economic feasibility, and industrial implementation. Recent advances in renewable and circular feedstocks, including biomass, agroindustrial residues, plastic waste, captured CO₂, and waste gases, are critically evaluated as alternative carbon resources. Low-carbon process design strategies such as process intensification, electrification, heat integration, and hybrid thermal-electrochemical systems are assessed with respect to their decarbonization potential, scalability, and industrial relevance. The perspective further analyzes developments in green catalysis, photocatalysis, electrocatalysis, biocatalysis, sustainable separation technologies, and circular bioprocessing systems. Particular emphasis is placed on carbon capture, utilization, and storage (CCUS), green hydrogen integration, renewable energy deployment, and digitalization through machine learning, digital twins, and real-time process optimization. The complementary roles of life-cycle assessment (LCA) and techno-economic analysis (TEA) are also discussed as essential tools for evaluating environmental and economic sustainability. Unlike previous perspectives that focus on individual technological domains, this Perspective provides a unified framework linking circular economy principles, low-carbon technologies, carbon management, and digital intelligence within a single roadmap for carbon-neutral chemical manufacturing. The synthesis identifies critical technological bottlenecks, implementation challenges, and future research priorities while highlighting opportunities for cross-sector integration and industrial deployment. The findings provide actionable insights for researchers, industry practitioners, and policymakers seeking to accelerate the transition toward resilient, resource-efficient, and low-carbon chemical production systems.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 9","pages":"2904–2928"},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149022622","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":"Study on Radiative Cooling Performance of Cellulose Nanofiber/Gelatin Aerogels Tuned by Fiber Aspect Ratio","authors":"Baoliang Wang,&nbsp;Yuchen Chao,&nbsp;Feng Wang,&nbsp;Jacqueline Lease,&nbsp;Yoshito Andou,&nbsp;Defeng Wu","doi":"10.1021/acssusresmgt.6c00358","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00358","url":null,"abstract":"<p>The aspect ratio of cellulose nanofibers (CNFs) provides a single geometrical parameter for regulating the multiscale coupling and performance trade-off of bio-based radiative cooling aerogels. In this work, CNF/Gelatin composite aerogels were fabricated through aqueous assembly and freeze-drying by using CNFs with long, medium, and short aspect ratios as structural regulating units. Without chemical modification, hierarchical templating, or additional functional fillers, this model system enables direct evaluation of how fiber geometry governs dispersion state, network formation, pore-structure evolution, and the resulting optical, thermal, and mechanical properties. Increasing CNF aspect ratio strengthened fiber entanglement and network continuity, resulting in lower density, higher porosity, lower thermal conductivity, and improved dry-state compressive load-bearing and energy-dissipation behavior. However, the optical response did not simply increase monotonically with aspect ratio. The Medium-CNF/Gelatin aerogel exhibited the highest measured optical performance, with a solar reflectance of 89% and an infrared emissivity of 88%, which was associated with its smaller projected pore size and relatively narrower pore-size distribution. In contrast, the Long-CNF/Gelatin aerogel showed better thermal insulation and mechanical robustness because the longer fibrillar units promoted a more continuous, low-density, and load-bearing network. Outdoor tests further demonstrated sub-ambient cooling of up to 4.9 °C. These results reveal that CNF aspect ratio is not merely a descriptive size parameter but a geometrical lever for balancing projected pore morphology, heat transfer, and mechanical integrity in CNF/Gelatin radiative cooling aerogels. The two-component formulation enables the intrinsic geometry of cellulose-based building units to be comparatively evaluated without additional functional fillers or post-fabrication chemical modification.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 9","pages":"3103–3114"},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149022727","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":"Green and Reusable Ni@AC-IL-Al2O3 Nanocatalyst for Efficient A3 Coupling, Nitroarenes Reduction, Zeta Potential Analysis, and Selective Adsorption of Cationic Dyes","authors":"Asimah Noreen,&nbsp;Gulfishan Khuram,&nbsp;Bobby Dewal,&nbsp;Monika Gupta","doi":"10.1021/acssusresmgt.6c00466","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00466","url":null,"abstract":"<p>A major challenge in sustainable heterogeneous catalysis is the effective utilization of low-cost waste resources without compromising catalytic activity, stability, and recyclability. Herein, we report the rational development of a biomass-derived hierarchical nanocatalyst, Ni@AC-IL-Al₂O₃, synthesized <em>via</em> ionic-liquid-mediated functionalization of peanut shell-derived activated carbon (AC), followed by integration with aluminum foil waste-derived Al₂O₃ and subsequent immobilization of uniformly dispersed Ni nanoparticles. The synergistic interplay between the high surface area carbon matrix, ionic-liquid-engineered surface chemistry, and mechanically robust Al₂O₃ framework promotes strong metal-support interactions and efficient dispersion of Ni active sites. The synthesized catalyst was comprehensively characterized using BET, TGA, XPS, HRTEM, FESEM, and related techniques to elucidate its structural, morphological, and surface properties, which are known to critically influence catalytic behavior in heterogeneous systems. This engineered architecture exhibits excellent catalytic performance in A³ coupling and nitroarene reduction under mild conditions, achieving high conversion (95%) with remarkable selectivity. Electrokinetic studies, including zeta potential analysis, confirm that ionic liquid functionalization enhances surface charge stabilization, leading to improved colloidal stability and catalytic efficiency. In addition to its catalytic activity, the nanocatalyst demonstrates efficient adsorption of Rhodamine B (RhB) and other cationic dyes, attributed to synergistic electrostatic interactions, π–π stacking, H-bonding, and abundant surface-active sites. The catalyst also displayed outstanding operational durability, with negligible Ni leaching and retention of over 90% catalytic activity after five consecutive cycles.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 9","pages":"3206–3227"},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149022733","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":"Hydrogen Production from Low-Grade Water Electrolysis to Contribute to Sustainable Development Goals 6 and 7: Challenges and Opportunities","authors":"Padinjarethil Vishnu,&nbsp;Deepika Tanwar,&nbsp;Ravi Sankannavar,&nbsp;Ijjada Mahesh","doi":"10.1021/acssusresmgt.6c00203","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00203","url":null,"abstract":"<p>The nexus between water and energy plays a key role in the green hydrogen economy. Conventional water electrolyzers require high purity water. This can create a burden on the freshwater facilities, in water stressed regions, for the mass production of green hydrogen. In this context, this paper explores the potential of nonpotable water sources, such as untreated sea and brackish water and waste water, as feedstock for water electrolyzers to produce green hydrogen, thereby contributing to United Nation’s sustainable development goals 6 and 7. We discuss the ionic impurities composition, variability of these low-grade water types and electrochemical challenges arising from these impurities. This includes undesired reactions, scaling, and degradation of catalyst and membrane degradation. We highlight the strategies to overcome these challenges, i.e., selection of novel electrocatalysts for impure water electrolysis and design of electrolyzers such as membraneless flow water electrolyzer that leverages hydrodynamic flow to separate the produced hydrogen and oxygen gasses without the costly and impurity sensitive membranes understood from computational fluid dynamics simulation results. We further propose the concept of integration of these membraneless flow electrolyzers with wastewater pipelines to support the decentralized hydrogen production. The techno-economic analysis further supports the integration of low-grade water with the proposed membraneless water electrolyzers. These advances can pave the pathway toward resource efficient and decentralized hydrogen production that aligns with global sustainability and clean energy goals.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2507–2521"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148815698","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-Capacity Enzymatic Degradation of Postconsumer Poly(ethylene terephthalate): Modeling and Experimental Investigations","authors":"Umer Abid,&nbsp;Ya-Hue Valerie Soong,&nbsp;Christian Ayafor,&nbsp;Jiansong Qin,&nbsp;Akanksha Patel,&nbsp;Allen Chang,&nbsp;Hsi-Wu Wong,&nbsp;Margaret J. Sobkowicz,&nbsp;Dongming Xie","doi":"10.1021/acssusresmgt.6c00126","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00126","url":null,"abstract":"<p>Enzymatic degradation is considered as one of the key steps for biorecycling of polyethylene terephthalate (PET), a widely used plastic. Recently, we have developed an optimized leaf-branch compost cutinase PelB-LCC^ICCG and demonstrated ∼80% degradation of 200 g L⁻¹ recycled PET (RPET) within two days in bioreactors. In this study, continued research efforts were made to achieve a complete degradation of up to 300 g L⁻¹ RPET in bioreactors. First, low-capacity reaction conditions with ≤5 g L⁻¹ PET were examined to identify the key variables for PET degradation with PelB-LCC^ICCG, including temperature, enzyme loading, and product inhibition. To better understand and further optimize the enzymatic degradation process, a mechanism-based model was established to describe the kinetics of PET degradation and formation of the main product terephthalic acid (TPA) and byproducts MHET and BHET in high-capacity bioreactors. Model simulation suggested that a minimal enzyme loading of ∼1.4 mg PelB-LCC^ICCG g⁻¹ RPET is required to achieve a nearly complete degradation of RPET within 48 h, which was used to guide more high-capacity experiments with 100−300 g L⁻¹ RPET in fully controlled 1 L bioreactors. A higher temperature (≥65 °C) was found not only to enable rapid degradation in the beginning but also to induce a gradual increase in RPET’s crystallinity and significantly slow down the degradation after 48 h. A high loading of RPET solids and the accumulation of the produced insoluble TPA pose a big challenge on mixing and mass transfer in the stirred bioreactor, which can be addressed by increasing the stirring speed. The results pave the way toward biorecycling of PET at a large scale.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2664–2681"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148815801","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":"Solar Driven Photocatalytic Reduction of Cr(VI) Via Interfacial Charge Transfer in FeWO4/CuO Nanocomposite","authors":"Saloni Priyadarshini Mallik,&nbsp;Bibekananda Bhoi,&nbsp;Amrita,&nbsp;Debangshi Naha,&nbsp;Vimlesh Chandra","doi":"10.1021/acssusresmgt.6c00333","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00333","url":null,"abstract":"<p>Hexavalent chromium (Cr(VI)) is a hazardous trace contaminant commonly present in industrial wastewater due to various anthropogenic activities, posing significant environmental and health risks. In this study, a FeWO₄/CuO nanocomposite was synthesized via coprecipitation followed by thermal decomposition, and systematically characterized to determine its crystal structure, morphology, elemental composition, and optical properties. The synthesized materials were evaluated for the photocatalytic reduction of toxic Cr(VI) under natural solar irradiation. Powder X-ray diffraction (P-XRD) analysis revealed that the average crystallite size decreased from 39.90 nm for FeWO₄ and 30.51 nm for CuO to 25.48 nm in the FeWO₄/CuO nanocomposite, indicating improved dispersion and interaction between the components. The FeWO₄/CuO nanocomposite exhibited superior photocatalytic activity, achieving 98.89% reduction of Cr(VI) to Cr(III) within 90 min, compared to 39.24% for FeWO₄ and 56.54% for CuO. The reduction process followed pseudo-first-order kinetics, with a rate constant (<em>k</em>) of 0.0409 min^–1, which is approximately five times higher than that of pure FeWO₄ (0.0097 min^–1) and about twice that of CuO (0.021 min^–1). The effects of operational parameters, including catalyst dosage (1.2 g L⁻¹, 98.85%), solution pH (pH 2, 98.89%), and the presence of inorganic ions, were systematically investigated, with the observed trend: Cl^– &lt; Br^– &lt; SO₄^2– &lt; NO₃^– &lt; IO₃^– &lt; CO₃^2– &lt; I^–. Reactive species trapping experiments indicated that electrons (e^–) played a dominant role in the reduction process. Furthermore, the nanocomposite demonstrated excellent stability and reusability, with only a 2.5% decrease in efficiency after five consecutive cycles.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2882–2895"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822408","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":"In Situ Generated Ni2P Catalyst for Selective Hydrodeoxygenation of Bisphenol A and Polycarbonate Waste to Aromatic Hydrocarbons","authors":"Maria A. Golubeva,&nbsp;Mariyam Mukhtarova,&nbsp;Anastasia M. Scherbakova,&nbsp;Anton L. Maximov","doi":"10.1021/acssusresmgt.6c00275","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00275","url":null,"abstract":"<p>The continuous growth of global plastic production and consumption, together with insufficient recycling strategies, has intensified the need for sustainable plastic waste valorization routes. Catalytic hydroprocessing of oxygen-containing polymers represents a promising route for converting plastic waste into valuable chemicals and fuel components. This work reports an in situ generated Ni₂P-containing catalyst as a sulfur-free and non-noble metal alternative to traditional catalysts for the hydrodeoxygenation of bisphenol A and polycarbonate for the first time. The Ni₂P-based catalyst enables the selective formation of C₆–C₉ aromatic hydrocarbons from bisphenol A and polycarbonate. Product distribution depended on the reaction conditions. Under relatively mild conditions (350 °C, 5 MPa H₂, 6 h), bisphenol A yielded a benzene–cumene mixture with 63% selectivity. Increasing the temperature to 400 °C and the initial H₂ pressure to 9 MPa shifted the product distribution toward benzene, resulting in a selectivity of up to 84%. Moreover, the applicability of the approach to polycarbonate waste was demonstrated (400 °C, 9 MPa H₂, 10 h), yielding a benzene–cumene mixture with 64% selectivity. These findings highlight the potential of Ni₂P-catalyzed hydrodeoxygenation for transforming polycarbonate waste into valuable aromatic hydrocarbons and fuel components.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2830–2839"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822456","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":"Lignin-Derived Fe-Loaded Graphene-Like Carbon as an Efficient Electrocatalyst for Nitrate-to-Ammonia Conversion","authors":"Wataru Yoshida,&nbsp;Hisaki Ito,&nbsp;Keiko Kaminakano,&nbsp;Ryo Suwaki,&nbsp;Shota Nagao,&nbsp;Mikaru Mori,&nbsp;Yoshinori Nishiwaki,&nbsp;Fumito Fujishiro,&nbsp;Motoyuki Matsuo,&nbsp;Masanobu Mori,&nbsp;Masaharu Nakayama","doi":"10.1021/acssusresmgt.6c00264","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00264","url":null,"abstract":"<p>We developed a sustainable route for the synthesis of iron-loaded graphene-like carbon catalysts from lignin, a waste byproduct from the paper industry. The catalysts were prepared by pyrolyzing Fe(II)-impregnated alkaline lignin at 1280 °C under an argon atmosphere. Structural characterization revealed the coexistence of α-Fe, γ-Fe, magnetite (Fe₃O₄), and pyrrhotite (Fe_{1–<em>x</em>}S) within a conductive graphene-like matrix. The electrocatalytic nitrate reduction reaction performance and reaction mechanism were investigated using an H-type electrolytic cell integrated with a rotating disk electrode. The optimized catalyst, AL-Fe0.25, exhibited a substantially lower Tafel slope (136 mV dec^–1) than bulk iron species, indicating accelerated electron transfer kinetics during the initial rate-determining step. Benefiting from these kinetics, AL-Fe0.25 exhibited a Faradaic efficiency of 80.8% for ammonia production and an ammonia yield rate of 9.27 mg h^–1 mg_cat^–1 at –0.75 V vs reversible hydrogen electrode. This performance was attributed to the cooperative interactions among the multiple Fe phases embedded in the conductive biomass-derived carbon framework. Long-term durability tests (12 h) showed a gradual decline in ammonia selectivity, which was ascribed to the corrosion of the graphene-like carbon framework induced by nitrate or reaction intermediates.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2801–2811"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822516","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":"Hydrothermal Carbonization of Sugarcane Leaves and Bagasse for Solid Fuels: Process Optimization Using Response Surface Methodology","authors":"Praful Mane,&nbsp;Mohit Kumar,&nbsp;Madiha Farooq,&nbsp;Anand Singh,&nbsp;Raju Kumar Gupta,&nbsp;Himanshu Sharma","doi":"10.1021/acssusresmgt.6c00087","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00087","url":null,"abstract":"<p>The cultivation and processing of sugarcane for sugar production generate significant agricultural and agro-industrial residues. The valorization of this generated residue for energy production offers a promising path to reduce net carbon emissions while addressing biomass waste management challenges. Hydrothermal carbonization (HTC) is an effective method for converting waste biomass, without drying, into energy-dense coal-like solid fuels. In this study, the HTC of sugarcane leaves (SCL) from farming and sugarcane bagasse (SCB) from the processing sugar industry was systematically investigated and optimized using a Box–Behnken response surface methodology (RSM). The effects of reaction temperature (160–220 °C), reaction time (4–12 h), and biomass-to-water ratio (1–2.5 g/30 mL) on hydrochar yield were evaluated, enabling the development of statistically significant predictive models. The maximum hydrochar yields of 78.30% for SCL and 82.00% for SCB were achieved at 160 °C, 12 h, and biomass loadings of 1.75 and 1.69 g, respectively. In addition to the optimization of hydrochar yield, the influence of HTC parameters on the fuel properties of hydrochar was widely assessed using proximate and ultimate analyses, calorific value estimation, thermogravimetric analysis (TGA), Fourier-transform infrared (FTIR) spectroscopy, and Brunauer–Emmett–Teller (BET) surface area measurements. The optimized hydrochars exhibited moderate increases in higher heating values to 15.88 MJ/kg (SCL) and 17.40 MJ/kg (SCB) as compared to 14.74 and 15.61 MJ/kg for raw SCL and SCB, respectively, indicating energy densification compared to the raw biomass. Notably, improvements in fuel characteristics, including enhanced carbon content and fuel ratio, indicate better combustion behavior and carbonization. A Van Krevelen plot highlighted the improved coal-like characteristics, showing the effectiveness of HTC in upgrading sugarcane residues into solid fuels. This work provides a comparative assessment of sugarcane leaves and bagasse valorization, supporting the potential option of HTC as a sustainable route for producing clean solid fuels from agro-industrial waste without the drying steps.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2641–2654"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822399","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":"A Portable and Rechargeable Method for the Complete Recycling of Concrete","authors":"Maxwell Markey,&nbsp;Pardis Pourhaji,&nbsp;Dalton Vassalo,&nbsp;Nima Rahbar,&nbsp;Suzanne Scarlata","doi":"10.1021/acssusresmgt.6c00315","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00315","url":null,"abstract":"<p>Concrete is the most widely used construction material in the world. Although concrete waste is mechanically ground and used as fill for construction projects, it cannot be recycled into components that can be reused for concrete structures and other purposes. This limitation is due to the inability to break cement bonds between the aggregates that form the intrinsic concrete structure. Here, we describe an electrochemical method to recycle concrete into its pure components, such as calcium carbonate, silicates, and metals (Al³⁺, Fe^2/3+, Ca²⁺) through reactions initiated by sulfuric acid and by selective precipitation to gypsum, sodium silicate, clay, iron nanoparticles, and calcium carbonate. These components were assessed and quantified by analytical techniques. We show that concrete decomposition and purification of its components can be arranged in a stepwise cyclic process to yield a device that is portable, allowing on-site recycling. The process only requires a small amount of input energy. A main component of the process is a three-chambered electrodialysis system that regenerates both acid and base in situ, enabling closed-loop direct raw concrete processing rather than preprocessed powdered feedstock, making it a methodology that is both portable and rechargeable. Overall, our process allows us to completely break down concrete matrices to create input products for new structurally sound concrete, supporting a circular economy.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2859–2869"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822420","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}