ACS ES&T engineering最新文献

ACS ES&T Engineering’s 2024 Excellence in Review Awards

IF 7.4

ACS ES&T engineering Pub Date : 2025-04-11 DOI: 10.1021/acsestengg.5c0022510.1021/acsestengg.5c00225

Wonyong Choi*, Jingyun Fang, Manish Kumar, Jaehong Kim, Robert Nerenberg, Brian Chaplin and Fan Dong,

引用次数: 0

Heat Capacity-Manipulated Balance in Phosphorus Bioavailability Enhancement and Heavy Metal Stabilization during Sewage Sludge Copyrolysis

IF 7.4

ACS ES&T engineering Pub Date : 2025-03-17 DOI: 10.1021/acsestengg.4c0057610.1021/acsestengg.4c00576

Le Fang, Guangcai Tan, Weiwei Xuan, Jiaming Liang, Liping Li, Shaogang Hu*, Zhenshan Li* and Siqi Tang*,

{"title":"Heat Capacity-Manipulated Balance in Phosphorus Bioavailability Enhancement and Heavy Metal Stabilization during Sewage Sludge Copyrolysis","authors":"Le Fang, Guangcai Tan, Weiwei Xuan, Jiaming Liang, Liping Li, Shaogang Hu*, Zhenshan Li* and Siqi Tang*, ","doi":"10.1021/acsestengg.4c0057610.1021/acsestengg.4c00576","DOIUrl":"https://doi.org/10.1021/acsestengg.4c00576https://doi.org/10.1021/acsestengg.4c00576","url":null,"abstract":"Disentangling the thermochemistry of sludge copyrolysis to balance phosphorus (P) bioavailability enhancement and heavy metal (HM) stabilization is challenging due to intricate and disordering thermochemical reactions caused by sludge compositional inhomogeneity. A heat capacity assembly and dispatch strategy via antagonistic additive-paired sludge copyrolysis was conceived to quantitatively determine the balance for P reclamation from sewage sludge (SS). Calcium oxide (CaO, with additions ranging from 7.54 to 10%) and wasted rapeseed meal (RM, with additions ranging from 10 to 50%)-formulated copyrolysis experiments were designed to investigate the evolved fate of P and HMs in SS-derived biochar (SSB) production. Ryegrass plant cultivation was adopted to examine the orchestrated balance of P and HMs in soil applications. RM and CaO preferentially influenced the P distribution, including iron/aluminum-bound P and apatite/CaCO3-associated P, respectively. In contrast, both additives consistently reached equilibrium with two HM ensembles, including soluble/reducible and oxidizable/residual fractions. SSB derived from RM-added (50% addition) and CaO-RM-paired (6% CaO and 47% RM addition) copyrolysis at 700 °C demonstrated preferential P acquisition of ryegrass (height increase by 17.4 and 4%, respectively) while maintaining a low HM ecological risk index (27.5 and 16.3, respectively). The kinetic and thermodynamic results confirmed that CaO and RM had antagonistic effects on the thermochemistry of sludge copyrolysis. The heat capacity reached its maximum at around 675 °C and was not affected by the paired additives. The outcome can rationalize P upcycling from SS-like waste resources through tapping the heat capacity precisely tuning the thermochemistry of copyrolysis, thereby boosting global P circularity.","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 4","pages":"839–854 839–854"},"PeriodicalIF":7.4,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818916","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}

引用次数: 0

Dual Role of Low-Cost Indirect Carbonation: Effective Carbon Sequestration and Decalcification Purification of Dechlorination Wastewater from Incineration Fly Ash Pretreatment

IF 7.4

ACS ES&T engineering Pub Date : 2025-03-13 DOI: 10.1021/acsestengg.4c0079610.1021/acsestengg.4c00796

Qing Zhang, Linming Lao, Liangguang Chen*, Longfeng Xu, Hao Zhang, Wenjing Zhu, Lilin Liu and Guangren Qian*,

{"title":"Dual Role of Low-Cost Indirect Carbonation: Effective Carbon Sequestration and Decalcification Purification of Dechlorination Wastewater from Incineration Fly Ash Pretreatment","authors":"Qing Zhang, Linming Lao, Liangguang Chen*, Longfeng Xu, Hao Zhang, Wenjing Zhu, Lilin Liu and Guangren Qian*, ","doi":"10.1021/acsestengg.4c0079610.1021/acsestengg.4c00796","DOIUrl":"https://doi.org/10.1021/acsestengg.4c00796https://doi.org/10.1021/acsestengg.4c00796","url":null,"abstract":"How to reduce the amount of NaHCO3 used in the decalcification of municipal solid waste incineration fly ash (IFA) prewashing wastewater is key to controlling the cost of IFA low-temperature pyrolysis. A novel route is proposed to replace NaHCO3 with CO2 and NH4OH for decalcification and generate vaterite CaCO3 with a purity of 98.15%. The effects of different chemical additives of NH4OH, NaOH, and NaHCO3 on the removal of Ca and heavy metals from IFA prewashing wastewater and on the crystalline phase of CaCO3 are systematically investigated. Ca-removal rate is near 100% at the molar ratios of NH4+/Ca2+, OH–/Ca2+, and HCO3–/Ca2+, which are 2.5, 2, and 2, respectively. Heavy metals are almost completely removed while the solution is carbonized to form CaCO3 coprecipitation. The presence of NH4+ favors vaterite formation, while NaOH and NaHCO3 promote calcite generation. Then, the environmental and economic performances of the three carbonization scenarios with Monte Carlo simulations are evaluated by life cycle assessment with life cycle costing. The use of CO2 coupling with NH4OH is always the best choice. Additionally, the successful demonstration of using real incineration plant flue gas decalcification provides a new pathway of IFA prewashing detoxification with short process and low cost without expensive NaHCO3 additive.","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 4","pages":"1043–1053 1043–1053"},"PeriodicalIF":7.4,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814726","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}

引用次数: 0

Upscaled Recycling of Lithium Nickel Manganese Cobalt Oxide (NMC) Cathode Using an Automated Electrochemical System towards Low-Carbon Utilization of Waste Lithium-Ion Battery (LIB)

IF 7.4

ACS ES&T engineering Pub Date : 2025-03-12 DOI: 10.1021/acsestengg.4c0074410.1021/acsestengg.4c00744

Danielle Abigail Clyde, Khai Yang Tan, Wen Jie Yiang, Wen Siong Poh, Jessin Tiu, Jiexiang Wang, Jun-tao Li, Nay Ming Huang, Binghui Chen and Chuan Yi Foo*,

{"title":"Upscaled Recycling of Lithium Nickel Manganese Cobalt Oxide (NMC) Cathode Using an Automated Electrochemical System towards Low-Carbon Utilization of Waste Lithium-Ion Battery (LIB)","authors":"Danielle Abigail Clyde, Khai Yang Tan, Wen Jie Yiang, Wen Siong Poh, Jessin Tiu, Jiexiang Wang, Jun-tao Li, Nay Ming Huang, Binghui Chen and Chuan Yi Foo*, ","doi":"10.1021/acsestengg.4c0074410.1021/acsestengg.4c00744","DOIUrl":"https://doi.org/10.1021/acsestengg.4c00744https://doi.org/10.1021/acsestengg.4c00744","url":null,"abstract":"The electrochemical approach has emerged as a low-carbon, environmentally friendly, and efficient recycling technique for waste lithium-ion battery (LIB) management. Conventional recycling techniques of pyrometallurgy and hydrometallurgy recycle large volumes of waste LIBs to the detriment of both human and environmental health. The need for sustainable management of LIB waste driven by the gaining popularity of electric vehicles (EVs) and energy storage solutions (ESS) has called for innovative recycling solutions, such as electrochemical recycling. However, the growth of the electrochemical approach has been limited to lab-scale testing. Herein, a simple and sophisticated recycling technique centered on the electrochemical approach is developed. The designed system showed superior performance in the selective leaching of lithium from spent lithium nickel manganese cobalt oxide (NMC) cathode material at different operating voltages with the minimum lithium leaching efficiency being over 80%. The cathode regenerated post-recycling achieves a capacity retention of 82.6%, outperforming the 80.6% obtained by commercial NMC after 200 cycles, owing to faster kinetics and lower impedance.","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 4","pages":"979–990 979–990"},"PeriodicalIF":7.4,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814666","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}

引用次数: 0

How Do Novel PFAS Sorbents Fit into Current Engineering Paradigm?

IF 7.4

ACS ES&T engineering Pub Date : 2025-03-11 DOI: 10.1021/acsestengg.5c0003610.1021/acsestengg.5c00036

Jonathan Burkhardt*, Thomas F. Speth, Stanley Gorzelnik, Alexander S. Gorzalski, Orlando Coronell, Ahmed Rachid El-Khattabi and Mohamed Ateia*,

{"title":"How Do Novel PFAS Sorbents Fit into Current Engineering Paradigm?","authors":"Jonathan Burkhardt*, Thomas F. Speth, Stanley Gorzelnik, Alexander S. Gorzalski, Orlando Coronell, Ahmed Rachid El-Khattabi and Mohamed Ateia*, ","doi":"10.1021/acsestengg.5c0003610.1021/acsestengg.5c00036","DOIUrl":"https://doi.org/10.1021/acsestengg.5c00036https://doi.org/10.1021/acsestengg.5c00036","url":null,"abstract":"As the emergence of novel sorbents brings new possibilities for treatment of per- and polyfluoroalkyl substances (PFAS), drinking water and wastewater utilities face critical decisions in selecting effective, future-ready technologies. With regulatory pressures to address PFAS contamination mounting, however, many utilities may not be in a position to fully evaluate the potential of these novel sorbents and are instead preparing to adopt established technologies that are currently available, such as granular activated carbon (GAC) and ion exchange (IX) resins. Given the expected long life spans of any chosen system, it is important to consider all options, including future treatment innovations. This perspective provides insights into their potential advantages and challenges by exploring the current state of novel sorbents within the broader context of existing technologies. Novel sorbents bring promising benefits, including enhanced selectivity, rapid kinetics, and flexibility for different PFAS chemistries, particularly in challenging matrices such as wastewater. Despite their advantages, significant work remains to refine these materials for large-scale application, including addressing scalability, cost-effectiveness, fouling resistance, and regulatory certification hurdles. By examining key factors for both utilities and novel sorbent developers, this perspective aims to guide informed decisions that balance immediate regulatory compliance with long-term adaptability.","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 4","pages":"830–838 830–838"},"PeriodicalIF":7.4,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814477","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}

引用次数: 0

Development of a Novel PCB-Degrading Biofilm Enriched Biochar Encapsulated with Sol–Gel: A Protective Layer to Sustain Biodegradation Activity

IF 7.4

ACS ES&T engineering Pub Date : 2025-03-06 DOI: 10.1021/acsestengg.4c0071810.1021/acsestengg.4c00718

Qin Dong, Timothy E. Mattes* and Gregory H. LeFevre*,

{"title":"Development of a Novel PCB-Degrading Biofilm Enriched Biochar Encapsulated with Sol–Gel: A Protective Layer to Sustain Biodegradation Activity","authors":"Qin Dong, Timothy E. Mattes* and Gregory H. LeFevre*, ","doi":"10.1021/acsestengg.4c0071810.1021/acsestengg.4c00718","DOIUrl":"https://doi.org/10.1021/acsestengg.4c00718https://doi.org/10.1021/acsestengg.4c00718","url":null,"abstract":"Paraburkholderia xenovorans LB400 biofilms hold the potential to degrade PCBs in contaminated sediment. Nevertheless, unfavorable environmental conditions (e.g., salinity, temperature, and shear force) can interfere with biofilm stability and affect biodegradation potential. Sol–gel encapsulation has been used to protect planktonic cell function due to high material stability and absence of cell washout but has not been employed for biofilm protection. Our study is the first to develop sol–gel application on biofilm-enriched black carbons and evaluate efficacy for prolonging biodegradation potential. We systematically tuned multiple sol–gel recipes to coat biofilms and measured the impact of the sol–gel coating on cell survival and pollutant degradation. The developed sol–gel completely encapsulated biofilm-enriched black carbons and produced both high porosity and appropriate pore size that allowed pollutant transfer from the surrounding environment to the biofilms. The sol–gel maintained physical integrity under saline conditions (simulating marine and estuary sediments) and continuously applied shear force. Additionally, the encapsulated biofilms degraded benzoate, a proof-of-concept organic molecule, and extended biofilm attachment and cell viability for over three months without a carbon and energy source. Our study demonstrates that sol–gel helps sustain PCB-degrading biofilms under environmentally relevant conditions. This novel sol–gel application can potentially improve the bioaugmentation effectiveness and enhance degradation of environmental pollutants.","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 4","pages":"883–898 883–898"},"PeriodicalIF":7.4,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsestengg.4c00718","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrodepositing Polyvinyl Ferrocene Films to Enhance Oxyanion Recovery and Electrode Longevity

IF 7.4

ACS ES&T engineering Pub Date : 2025-02-28 DOI: 10.1021/acsestengg.4c0078710.1021/acsestengg.4c00787

Yurui Li, Anaira Román Santiago, Kwiyong Kim, Junhyung Park, Joseph R. Hladik, Xiao Su and Roland D. Cusick*,

{"title":"Electrodepositing Polyvinyl Ferrocene Films to Enhance Oxyanion Recovery and Electrode Longevity","authors":"Yurui Li, Anaira Román Santiago, Kwiyong Kim, Junhyung Park, Joseph R. Hladik, Xiao Su and Roland D. Cusick*, ","doi":"10.1021/acsestengg.4c0078710.1021/acsestengg.4c00787","DOIUrl":"https://doi.org/10.1021/acsestengg.4c00787https://doi.org/10.1021/acsestengg.4c00787","url":null,"abstract":"Rhenium, a critical high-value mineral, naturally occurs as perrhenate (ReO4–) and is difficult to separate from competing anions. Polyvinyl ferrocene (PVF) coated electrodes have exhibited selective adsorption of transition metal oxyanions, but performance degradation with cycling is poorly understood. This study examines the impact of two PVF film fabrication strategies (electrodeposition (ED) and dip-coating (DC)) on (i) rhenium uptake capacity and selectivity, (ii) electrode regeneration and performance longevity, and (iii) lifecycle cost of Re recovery. Electrodeposited PVF films exhibited nearly twice the rhenium uptake (351 ± 82.1 mg Re/g coating) of dip-coating PVF films (158 ± 32.7 mg Re/g coating). Additionally, after 15,000 charge/discharge cycles, Re uptake remained 69.1 ± 11.3% for ED but only 28.0 ± 12.3% for DC films, indicating improved PVF attachment to carbon scaffolds. Operational conditions significantly affected rhenium release after adsorption, with regeneration of 82.6 ± 9.4% at −0.8 V vs Ag/AgCl compared to 30.78 ± 6.2% at 0 V vs Ag/AgCl, due to reduction of both Fe and Re which promoted electrode regeneration at −0.8 V vs Ag/AgCl. A preliminary technoeconomic analysis indicates the high selectivity and longevity of PVF-ED electrodes could facilitate Re recovery at ∼5% of the current market price.","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 4","pages":"1023–1031 1023–1031"},"PeriodicalIF":7.4,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814439","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}

引用次数: 0

Advancing Bioflocculants for Sustainable Harmful Algal Bloom Control: Mechanisms, Applications, and Resource Valorization

IF 7.4

ACS ES&T engineering Pub Date : 2025-02-17 DOI: 10.1021/acsestengg.4c0075310.1021/acsestengg.4c00753

Yang Yang, Cancan Jiang*, Xu Wang, Yawen Xie, Danhua Wang, Shengjun Xu and Xuliang Zhuang*,

{"title":"Advancing Bioflocculants for Sustainable Harmful Algal Bloom Control: Mechanisms, Applications, and Resource Valorization","authors":"Yang Yang, Cancan Jiang*, Xu Wang, Yawen Xie, Danhua Wang, Shengjun Xu and Xuliang Zhuang*, ","doi":"10.1021/acsestengg.4c0075310.1021/acsestengg.4c00753","DOIUrl":"https://doi.org/10.1021/acsestengg.4c00753https://doi.org/10.1021/acsestengg.4c00753","url":null,"abstract":"Harmful algal blooms (HABs) are a growing global problem that endangers ecosystems and public health and urgently needs to be controlled. The use of microbial bioflocculants for bioflocculation is an emerging technology that rapidly aggregates algal cells through charge neutralization, adsorption bridging, and other mechanisms, all while preventing cell lysis. This method achieves algae removal, effectively mitigating harmful algal blooms and enabling the recovery of potential resources. This Review comprehensively analyzes recent advances in bioflocculant technology, focusing on flocculation mechanisms, influencing factors, and applications in HAB management and algal biomass harvesting. Strategies for enhancing bioflocculant performance, including modification, composite development, and optimization of production using low-cost substrates, are discussed. The valorization of harvested algal biomass through various pathways, such as bioenergy production, fertilizer generation, and high-value compound extraction, is explored, highlighting the potential for a circular bioeconomy approach. Current challenges in bioflocculant development and application are critically examined, including the need for mechanistic understanding, efficiency improvement, and cost reduction. Future research directions emphasize elucidating flocculation mechanisms, developing hyper-productive strains, advancing modification and composite techniques, and innovating algal biomass utilization methods. This Review aims to offer a timely assessment of bioflocculant technology’s current status and future prospects for sustainable HAB management and resource recovery. Its ultimate goal is to directly support ongoing initiatives in environmental protection and advance circular economy development.","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 3","pages":"569–583 569–583"},"PeriodicalIF":7.4,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609010","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}

引用次数: 0

Tuning Three-Electron Oxygen Reduction Pathway for •OH Production from O2: A Critical Review of Fundamental Principles, Catalyst/Electrode Development, and Application

IF 7.4

ACS ES&T engineering Pub Date : 2025-02-15 DOI: 10.1021/acsestengg.4c0079510.1021/acsestengg.4c00795

Jingkun An, Yuyan Tang, Zhihong Ye, Xin Wang, Yujie Feng and Nan Li*,

{"title":"Tuning Three-Electron Oxygen Reduction Pathway for •OH Production from O2: A Critical Review of Fundamental Principles, Catalyst/Electrode Development, and Application","authors":"Jingkun An, Yuyan Tang, Zhihong Ye, Xin Wang, Yujie Feng and Nan Li*, ","doi":"10.1021/acsestengg.4c0079510.1021/acsestengg.4c00795","DOIUrl":"https://doi.org/10.1021/acsestengg.4c00795https://doi.org/10.1021/acsestengg.4c00795","url":null,"abstract":"The oxygen reduction reaction (ORR) has been widely studied and applied in various fields. Traditionally, the ORR could be classified into a two-electron pathway with hydrogen peroxide (H2O2) as the product and a four-electron pathway with water (H2O) as the product. Recently, a three-electron pathway, namely, catalyzing O2 directly into a hydroxyl radical (•OH), has attracted growing attention. Given the development prospects of this emerging reaction, this review focuses on the fundamental principles, catalytic material developments, and applications of the three-electron ORR-based Fenton (like) process. New insight into two/three/four-electron ORR based on proton/electron flow is illustrated, and the required features as well as electrode design strategy are summarized. Extensive discussions on the development and application of monometallic, polymetallic, and metal-free three-electron ORR electrodes are provided. The catalytic mechanisms involved in reactive oxygen species (ROSs) formation, structure–function relationship, and key active site transformation are presented. Finally, the challenges and future prospects of the three-electron ORR are discussed.","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 3","pages":"584–606 584–606"},"PeriodicalIF":7.4,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609005","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}

引用次数: 0

Energy Analysis of Electrofiltration in a Homogeneous Macroporous α-Al2O3 Membrane

IF 7.4

ACS ES&T engineering Pub Date : 2025-02-15 DOI: 10.1021/acsestengg.4c0076810.1021/acsestengg.4c00768

Wm. Vincent Anderson, Hendrik Verweij and Linda K. Weavers*,

{"title":"Energy Analysis of Electrofiltration in a Homogeneous Macroporous α-Al2O3 Membrane","authors":"Wm. Vincent Anderson, Hendrik Verweij and Linda K. Weavers*, ","doi":"10.1021/acsestengg.4c0076810.1021/acsestengg.4c00768","DOIUrl":"https://doi.org/10.1021/acsestengg.4c00768https://doi.org/10.1021/acsestengg.4c00768","url":null,"abstract":"Membrane filtration offers high-quality permeate at the cost of energy-intensive mechanical pumping. Electrofiltration, or electric field-assisted water permeation, has shown promise in reducing energy expenses, eliminating mechanical components, and providing instantaneous flow reversal for membrane defouling. However, fundamental analysis of the energy consumption, energy efficiency, defined as the specific energy consumption, SEC, and standardized nomenclature hinders development. Using a sintered random loose packing of monodisperse α-Al2O3 spheres to create a well-defined geometry, microstructure, and composition, we investigated electroosmotic flow through the membrane to evaluate the SEC of components within an electrofiltration membrane. At minimal transmembrane pressure and compared to no electric field, application of an electrical potential, ΔΦ, of 10 V (pressure difference of 1.2 kPa, pH 3.8, and 22 °C) increased the membrane flux 15-fold from the initial 2–31 LMH. The observed energy consumption with the well-defined physical membrane properties and net electroosmotic flow (EOF) of 29 LMH resulted in SECEOF = 0.31 kWh/m3. A fundamental determination of the theoretical minimum SEC, SECEOFmin, is estimated to be 0.006 kWh/m3. While the SECEOF determined is efficient for traditional membrane filtration and literature reported SECEOF, the SECEOF in this study is ascribed almost entirely to electrode losses and ionic transport resistance. These energy losses indicate significant opportunities to improve energy efficiency of electric field-assisted filtrations. This quantitative evaluation identifies electrofiltration performance and reasons for energy loss within an EOF system, which may be further studied to improve the energy efficiency of electric field-assisted filtration.","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 4","pages":"1003–1010 1003–1010"},"PeriodicalIF":7.4,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814428","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}

引用次数: 0