Desalination最新文献

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Polymer semiconductor-coated 3D bilayer cellulose nanofiber/polydimethylsiloxane aerogel for enhanced solar-driven interfacial water evaporation
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-04-22 DOI: 10.1016/j.desal.2025.118947
Keerthnasre Dhandapani , Gayoung Ham , Hossein Fattahimoghaddam , In Ho Kim , Hyojung Cha , Xiaowu Tang , Da Wan Kim , Tae Kyu An , Yong Jin Jeong
{"title":"Polymer semiconductor-coated 3D bilayer cellulose nanofiber/polydimethylsiloxane aerogel for enhanced solar-driven interfacial water evaporation","authors":"Keerthnasre Dhandapani ,&nbsp;Gayoung Ham ,&nbsp;Hossein Fattahimoghaddam ,&nbsp;In Ho Kim ,&nbsp;Hyojung Cha ,&nbsp;Xiaowu Tang ,&nbsp;Da Wan Kim ,&nbsp;Tae Kyu An ,&nbsp;Yong Jin Jeong","doi":"10.1016/j.desal.2025.118947","DOIUrl":"10.1016/j.desal.2025.118947","url":null,"abstract":"<div><div>Solar-powered interfacial water evaporation is a promising technique for producing freshwater from seawater, crucial for addressing freshwater shortages. However, it still maintains challenges to develop the matrix that is mechanically flexible and can convert solar energy while floating on seawater. Here, an exceptionally robust cellulose nanofiber/polydimethylsiloxane (CNF/PDMS) aerogel evaporator is developed through freeze-drying and dip-coating techniques. The aerogel withstands pressure up to 15.89 kPa under a 50 % compressive strain, confirming its reliability and practical applicability. Polymer semiconductor, PM6, was applied onto the CNF/PDMS aerogel, which efficiently absorbed solar radiation across the ultraviolet-visible (UV–Vis) and near-infrared (NIR) wavelengths. This enables excellent photothermal properties with an impressive light-to-heat conversion, maintaining a surface temperature of 53.9 °C compared to 44.6 °C for bare CNF/PDMS under 1 sun. Consequently, the PM6-CNF/PDMS aerogel enhances a notable water evaporation and photothermal conversion efficiency of 98.1 % under solar light irradiation. The aerogel evaporator also demonstrates excellent water purification capabilities, effectively producing clean water from both real and artificial seawater, maintaining consistent evaporation efficiencies from 91 % to 98 %. over seven cycles. This study shows that solar-thermal energy and scalable methodologies can be used to manufacture high-performance composites for solar-powered interfacial systems for seawater desalination and wastewater purification.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"611 ","pages":"Article 118947"},"PeriodicalIF":8.3,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143864036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nanofiltration (NF) application in drinking water treatment plants and the challenges of its concentrate management in China
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-04-20 DOI: 10.1016/j.desal.2025.118937
Juncheng Wang, Cheng Liu, Shunke Ding, Yuchun Yang
{"title":"Nanofiltration (NF) application in drinking water treatment plants and the challenges of its concentrate management in China","authors":"Juncheng Wang,&nbsp;Cheng Liu,&nbsp;Shunke Ding,&nbsp;Yuchun Yang","doi":"10.1016/j.desal.2025.118937","DOIUrl":"10.1016/j.desal.2025.118937","url":null,"abstract":"<div><div>Nanofiltration (NF) technology, employed for water purification through size exclusion and charge separation, faces certain challenges. This review offers a comprehensive summary of the application of NF technology in drinking water treatment plants (DWTPs) across various regions in China, and the characteristics of NF concentrate (NFC). The quality of NFC exhibits variability at recovery rates of 40–60 %, despite consistent pollutant rejection across various NF membranes. Over a seven-year study, continuous operation of NF membranes was found to induce fouling, necessitating more frequent cleaning that damages the membrane structure. This leads to a doubling of NFC yield and a 30 % decrease in the retention of monovalent ions like chloride, with minimal impact on the retention of total hardness and sulfate. Temperature influences NF membrane recovery rates, which are 5–15 % higher in summer. Influent quality, productivity, and rejection efficiency variations significantly stress the final stage of a three-stage NF system. This review includes a study at two DWTPs using NF90 and NF270 membranes for treating saline groundwater and surface water contaminated with trace organic compounds (TrOCs), respectively. The study highlights challenges in managing NFC due to elevated levels of water quality parameters such as total dissolved solids, sulfate, chloride, total phosphorus, and TrOCs. Additionally, NF retains beneficial elements like strontium. It also assesses NFC composition and regional discharge standards for water bodies. This review offers valuable insights into the research and application of NF membranes in DWTP in China, and the water quality characteristics of NFC, facilitating a more comprehensive understanding of NF technology.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"611 ","pages":"Article 118937"},"PeriodicalIF":8.3,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental performance and cost assessment of an energy-efficient zero liquid discharge treatment technology for high-salinity wastewater in arid regions
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-04-20 DOI: 10.1016/j.desal.2025.118921
Xianlong Li, Yong Li, Xiaofeng Fang, Fang Li, Jianlin Liu
{"title":"Experimental performance and cost assessment of an energy-efficient zero liquid discharge treatment technology for high-salinity wastewater in arid regions","authors":"Xianlong Li,&nbsp;Yong Li,&nbsp;Xiaofeng Fang,&nbsp;Fang Li,&nbsp;Jianlin Liu","doi":"10.1016/j.desal.2025.118921","DOIUrl":"10.1016/j.desal.2025.118921","url":null,"abstract":"<div><div>Energy-efficient and low-cost treatment technologies are essential for high-salinity wastewater. In this paper, a zero liquid discharge (ZLD) treatment technology is proposed. A test system was established in northwestern China. Experiments were conducted under different operating conditions of the simplified solar chimney-photothermal interfacial evaporation (SSC-PIE) system and the solar enhanced cooling tower evaporation (SECTE) system, and the optimal operating conditions were determined for each. As a result, the average evaporation rate of the SSC-PIE system reached a maximum of 0.606 kg/(m<sup>2</sup>∙h), and the SECTE system reached 13.336 kg/h. The performance coefficient (COP) of the SECTE system ranged from 26.33 to 37.09, outperforming mechanical vapor recompression (MVR) systems of ZLD process. Additionally, the SECTE system is suitable for promotion in areas with low land cost. Cost assessment indicates that, at the evaporation rate of 0.52 m<sup>3</sup>/day, the water production cost is 6.76 $/m<sup>3</sup>. Compared to MVR system, the treatment process proposed in this study highlights its cost competitiveness in arid regions.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"611 ","pages":"Article 118921"},"PeriodicalIF":8.3,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Energy-efficient calcination-free mg cement recovered from desalination brine
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-04-19 DOI: 10.1016/j.desal.2025.118928
S.H. Chu , E.H. Yang , C. Unluer
{"title":"Energy-efficient calcination-free mg cement recovered from desalination brine","authors":"S.H. Chu ,&nbsp;E.H. Yang ,&nbsp;C. Unluer","doi":"10.1016/j.desal.2025.118928","DOIUrl":"10.1016/j.desal.2025.118928","url":null,"abstract":"<div><div>Conventional ordinary Portland cement (PC) or magnesium-based cements' production typically involves energy-intensive calcination. In this work, the recovery of calcination-free Mg(OH)<sub>2</sub>-based low carbon cements from reject brine was demonstrated, addressing the global challenge of carbon neutrality. The use of electrochemical approach can reduce energy intensity by 52–78 % compared to PC, lowering it to 0.87–1.93 MWh per ton of Mg(OH)<sub>2</sub>, while eliminating 0.56 MWh (2.0 GJ) per ton of MgO required for calcination, targeting net carbon emissions of −0.31-0.41 ton CO<sub>2</sub>/ton. To enhance production efficiency and quality, the nanostructure of Mg(OH)<sub>2</sub> was tailored using urea as a nano modifier and cross-linker in the harvesting process. At an optimum modifier dosage, Mg(OH)<sub>2</sub> particles aligned with high surface exposure, thus presenting greater reactivity, pore volume and specific surface area. Thermogravimetric (TG), X-ray diffraction (XRD) and scanning electron microscopy (SEM) analyses performed on Mg(OH)<sub>2</sub> revealed the optimum modifier content. The use of this Mg(OH)<sub>2</sub> as a binder in carbonated samples revealed dypingite and nesquehonite as the main reaction products. The performance of Mg(OH)<sub>2</sub> as a binder was influenced by its properties, which were dependent on the urea dosage. A critical modifier dosage of 0.2 mol/L yielded brucite with the highest SSA and reactivity, translating to the highest strength among all samples. The underlying mechanism could be attributed to the interlocking and synergistic effects arising from the optimal co-existence of rosette-like dypingite and rod-like nesquehonite.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"610 ","pages":"Article 118928"},"PeriodicalIF":8.3,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143851718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Efficient zinc extraction from industrial wastewater with novel phenyl phosphate for saline wastewater net-zero emission
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-04-19 DOI: 10.1016/j.desal.2025.118926
Shuai Li , Jianguang Yang , Hong Liu , Jia Ning , Bo Han , Shenghai Yang , Hai Yu , Fang Hu , Hongliang Zhang , Yongming Chen
{"title":"Efficient zinc extraction from industrial wastewater with novel phenyl phosphate for saline wastewater net-zero emission","authors":"Shuai Li ,&nbsp;Jianguang Yang ,&nbsp;Hong Liu ,&nbsp;Jia Ning ,&nbsp;Bo Han ,&nbsp;Shenghai Yang ,&nbsp;Hai Yu ,&nbsp;Fang Hu ,&nbsp;Hongliang Zhang ,&nbsp;Yongming Chen","doi":"10.1016/j.desal.2025.118926","DOIUrl":"10.1016/j.desal.2025.118926","url":null,"abstract":"<div><div>Traditional acid phosphate extractants exhibit low extraction efficiency in high-acid environments, while saponification pretreatment generates significant volumes of saline wastewater, with the high-cost of industrial salt concentration and crystallization. Based on the “esterification-alkaline hydrolysis-acidification” reaction, the bis(4-(2,4,4-trimethylpentan-2-yl) phenyl) hydrogen phosphate [(C<sub>14</sub>H<sub>21</sub>OH)<sub>2</sub>POOH, D4TOPHP] was synthesized with purity of 97.38 % and yield of 96.46 %. Compared to D2EHPA and HEH/EHP, the conjugation effect of phenyl group significantly enhances the electron-donating ability of P-OH. It promotes proton dissociation and proton exchange with Zn<sup>2+</sup>, and the extraction ability of D4TOPHP is significantly improved. Through two-stage countercurrent extraction and stripping, 99.97 % of zinc can be efficiently recovered from zinc-containing wastewater, achieving effective separation from impurity ions such as Mn<sup>2+</sup>, Ca<sup>2+</sup>, Mg<sup>2+</sup>, Al<sup>3+</sup>, and Fe<sup>3+</sup>. To achieve the same extraction performance, the NaOH required for saponification pretreatment of D2EHPA and HEH/EHP is 4.85 and 8.12 t/t Zn, while the discharge of saline wastewater (100 g/L Na<sub>2</sub>SO<sub>4</sub>) is 86.07 and 144.15 m<sup>3</sup>/t Zn. D4TOPHP achieves zinc efficient extraction, avoiding the alkaline reagents consumption and saline wastewater discharge generated by saponification pretreatment of alkyl phosphate extractants. It demonstrates significant environmental and economic benefits, presenting desirable application prospects in the disposal of low-concentration zinc-containing wastewater.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"611 ","pages":"Article 118926"},"PeriodicalIF":8.3,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Concentrating Ni, Co, and Mn ions with graphene nanoribbon membrane for spent lithium-ion battery recycle: Combined experimental and techno-economic study
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-04-19 DOI: 10.1016/j.desal.2025.118925
Jiwon Kim , Jong Hyup Lee , Jongdu Choi , Jeong Pil Kim , Ju Yeon Kim , Junhyeok Kang , Junghwan Kim , Dae Woo Kim
{"title":"Concentrating Ni, Co, and Mn ions with graphene nanoribbon membrane for spent lithium-ion battery recycle: Combined experimental and techno-economic study","authors":"Jiwon Kim ,&nbsp;Jong Hyup Lee ,&nbsp;Jongdu Choi ,&nbsp;Jeong Pil Kim ,&nbsp;Ju Yeon Kim ,&nbsp;Junhyeok Kang ,&nbsp;Junghwan Kim ,&nbsp;Dae Woo Kim","doi":"10.1016/j.desal.2025.118925","DOIUrl":"10.1016/j.desal.2025.118925","url":null,"abstract":"<div><div>The growing demand for lithium-ion batteries (LiBs) driven by the rapid growth of the electric vehicle market is leading to the problem of end-of-life battery disposal, which greatly increases the need for efficient rare metal recycling of waste batteries. Ion enrichment using a membrane has a potential to improve the efficiency of the recycling process, resulting in low energy and cost consumption compared with conventional rare metal recovery methods. In this work, graphene oxide nanoribbon (GONR), synthesized by oxidizing multi-walled carbon nanotube (MWNT), was thermally annealed <em>via</em> hot-pressing to fabricate graphene nanoribbon (GNR) membranes. GNR membranes exhibit narrow and stable interlayer spacing, effectively inhibiting divalent ion permeation while maintaining water transport channels. Ion enrichment experiments demonstrated that GNR membranes are effective in concentrating the ionic solutions <em>via</em> forward osmosis (FO) process with a water flux of 1 LMH (L m<sup>−2</sup> h<sup>−1</sup>) and water/ion selectivity of 10,500. The economic feasibility of the FO system in LIB recycle process was evaluated, showing a total annualized cost (TAC) reduction of 71.7 % and 14.3 % compared to the evaporation and reverse osmosis systems, respectively.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"611 ","pages":"Article 118925"},"PeriodicalIF":8.3,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of structural parameters on cavitation performance of a novel counter-rotating hydrodynamic cavitation reactor for seawater pre-treatment
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-04-19 DOI: 10.1016/j.desal.2025.118927
Licheng Xue , Wanlong Ren , Jinhan Liu , Gang Liu , Yue Wang , Haiyan Bie , Zongrui Hao
{"title":"Effect of structural parameters on cavitation performance of a novel counter-rotating hydrodynamic cavitation reactor for seawater pre-treatment","authors":"Licheng Xue ,&nbsp;Wanlong Ren ,&nbsp;Jinhan Liu ,&nbsp;Gang Liu ,&nbsp;Yue Wang ,&nbsp;Haiyan Bie ,&nbsp;Zongrui Hao","doi":"10.1016/j.desal.2025.118927","DOIUrl":"10.1016/j.desal.2025.118927","url":null,"abstract":"<div><div>A new seawater pretreatment method based on hydrodynamic cavitation technology applied to seawater reverse osmosis desalination was proposed, based on which a counter-rotating hydrodynamic cavitation reactor (HCR) was designed. A combination of high-speed camera experiments and numerical simulations was used to investigate the flow characteristics of cavitation within the counter-rotating HCR. It is found that the cavitation at the tip of the oblique-tooth rotor was accompanied by wake vortex shedding during the development and evolution. Besides, the effects of structural parameters of the cavitation-inducing key components, the oblique-tooth rotor and the flat-tooth rotor, on the cavitation performance were investigated in detail. The cavitation generation efficiency was analyzed for various interaction gaps of the rotor, the number of grooves of the flat-tooth rotor, and the inclination angle of the oblique-tooth rotor. The results show that the counter-rotating HCR with an interaction gap of 1 mm, a groove number of 13, and an inclination angle of 8°-8° obtained the optimal cavitation performance. Finally, the disinfection performance of counter-rotating HCR was evaluated by <em>E. coli</em> inactivation experiment. It is found that the cavitation device has high disinfection performance. Moreover, the inactivation effect of free radicals on <em>E. coli</em> was weak, while the strong shear stress caused by cavitation collapse mainly damaged the cell structure of <em>E. coli</em>, which was also verified by Scanning Electron Microscope.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"610 ","pages":"Article 118927"},"PeriodicalIF":8.3,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143851719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Contribution of solar photovoltaic to the decarbonization of wastewater treatment plants in China
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-04-19 DOI: 10.1016/j.desal.2025.118935
Ranbin Liu , Yanping Qiao , Huanlun Zhang , Maokun Lv , Xiaodi Hao
{"title":"Contribution of solar photovoltaic to the decarbonization of wastewater treatment plants in China","authors":"Ranbin Liu ,&nbsp;Yanping Qiao ,&nbsp;Huanlun Zhang ,&nbsp;Maokun Lv ,&nbsp;Xiaodi Hao","doi":"10.1016/j.desal.2025.118935","DOIUrl":"10.1016/j.desal.2025.118935","url":null,"abstract":"<div><div>As the decarbonization of wastewater treatment plants (WWTPs) progresses, leveraging photovoltaic (PV) systems to reduce greenhouse gas (GHG) emissions has received increasing attention. This study is, for the first time, to comprehensively summarize and analyze the deployment of PV + WWTPs. Since 2019, hundreds of PV + WWTP projects have been built and are currently in operation nationwide, with the majority located in the Yangtze River Economic Belt. According to 31 case projects, the adoption of PV systems can, on average, supply about 20 % of the electricity required annually. As a result, they achieved an average GHG emission reduction of 11 %. This performance is strongly correlated with the panel coverage and local solar radiation. Regarding economic performance, the initial investment of PV systems is high but can be recovered, on average, within 7 years, resulting in a marginal abatement cost of −30 $/t CO<sub>2-eq</sub>. Overall, the contribution of PV systems to emission reduction in the water sector is limited, despite the economic advantages. As PV at WWTPs is projected to increase, a critical evaluation and feasibility analysis are strongly recommended in future planning. Most importantly, the adverse environmental impacts of PV, particularly during the disposal stage, should also be considered.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"611 ","pages":"Article 118935"},"PeriodicalIF":8.3,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recycling metal ions from hot-dip galvanizing wastewater to high-value MOFs: From removal of environmental disturbance via hydrothermal to metal resources
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-04-18 DOI: 10.1016/j.desal.2025.118923
Yi He , Huan Xiong , Bifang Zheng, Li Li, Shujie Wang, Shuangqin Tian, Lihong Tang
{"title":"Recycling metal ions from hot-dip galvanizing wastewater to high-value MOFs: From removal of environmental disturbance via hydrothermal to metal resources","authors":"Yi He ,&nbsp;Huan Xiong ,&nbsp;Bifang Zheng,&nbsp;Li Li,&nbsp;Shujie Wang,&nbsp;Shuangqin Tian,&nbsp;Lihong Tang","doi":"10.1016/j.desal.2025.118923","DOIUrl":"10.1016/j.desal.2025.118923","url":null,"abstract":"<div><div>Heavy metal ion pollution in industrial wastewater poses significant threats to human health and the environment. In this study, hot-dip galvanizing wastewater was successfully converted into high-value metal–organic framework (MOF) materials (i.e., Fe-BTC-R and Zn-BTC-R; BTC = benzenetricarboxylic acid), and the restorative capabilities of these materials were evaluated using three dyes, namely methylene blue (MB), malachite green (MG), and crystal violet (CV). For the Fe-BTC-R material, the adsorption capacities of MB and MG were 803.03 and 475.12 mg/g, respectively, while for the Zn-BTC-R material, adsorption capacities of 1798.2 and 381.79 mg/g were obtained for CV and MG, respectively. These results indicate that the adsorption performance of both materials is superior to most conventional adsorbent materials. Furthermore, theoretical calculations and experiments suggested that the mechanism of dye adsorption could be attributed to the synergistic effects of electrostatic attraction, hydrogen bonding, and π–π interactions. Finally, the photocatalytic performances of the materials were simply evaluated using three dyes. Overall, our study not only provides an effective strategy for managing heavy metal salt pollution in wastewater but also contributes to achieving the goals of resource recovery and dye treatment.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"611 ","pages":"Article 118923"},"PeriodicalIF":8.3,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design of real-time hybrid nanofiltration/reverse osmosis seawater desalination plant performance based on deep learning application
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-04-17 DOI: 10.1016/j.desal.2025.118918
Fahad Jibrin Abdu , Sani I. Abba , Jamilu Usman , Abubakar Bala , Mahmud M. Jibril , Feroz Shaik , Isam H. Aljundi
{"title":"Design of real-time hybrid nanofiltration/reverse osmosis seawater desalination plant performance based on deep learning application","authors":"Fahad Jibrin Abdu ,&nbsp;Sani I. Abba ,&nbsp;Jamilu Usman ,&nbsp;Abubakar Bala ,&nbsp;Mahmud M. Jibril ,&nbsp;Feroz Shaik ,&nbsp;Isam H. Aljundi","doi":"10.1016/j.desal.2025.118918","DOIUrl":"10.1016/j.desal.2025.118918","url":null,"abstract":"<div><div>The advancements brought by Artificial Intelligence (AI) have revolutionized various research domains in solving highly dynamic and complex problems such as desalination. Recently, there has been a growing trend toward modeling the effectiveness of the hybrid nanofiltration (NF) and reverse osmosis (RO) of desalination. In this study, we develop a deep learning (DL)-based approach to model the performance of hybrid NF/RO desalination plants based on permeate conductivity (PC), permeate flow rate (PF), and permeate recovery (PR). For this purpose, three configurations of a convolutional neural network (CNN), recurrent neural network (RNN), and relevance vector machine (RVM) were designed to achieve the modeling task. Before the modeling process, data preprocessing and feature selection were conducted based on the raw input-output parameters. The outcomes were evaluated based on several statistical variables. The results demonstrated that CNN-M3 achieved the best performance in all the five statistical performance criteria employed for PC<span><math><mspace></mspace><mfenced><mrow><mi>μS</mi><mo>/</mo><mi>cm</mi></mrow></mfenced></math></span>, PF<span><math><mspace></mspace><mfenced><mrow><msup><mi>m</mi><mn>3</mn></msup><mo>/</mo><mi>h</mi></mrow></mfenced></math></span>, and PR (%) modeling during the calibration and verification phase. The quantitative results proved that CNN-M3 achieved an accuracy of (MAE = 0.0780), (MAE = 0.0657), and (MAE = 0.0491) for PC<span><math><mspace></mspace><mfenced><mrow><mi>μS</mi><mo>/</mo><mi>cm</mi></mrow></mfenced></math></span>, PF <span><math><mfenced><mrow><msup><mi>m</mi><mn>3</mn></msup><mo>/</mo><mi>h</mi></mrow></mfenced></math></span>, and PR (%), respectively. The results were also drawn in a 2D-dimensional Taylor diagram to show the probability cumulative distribution function (CDF) in a scatter plot. Results reveal that DL-based models like CNN perform superiorly against RNN and RVM. Therefore, they can be deployed as a reliable and efficient tool for simulating the performance of a hybrid NF/RO seawater desalination system.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"611 ","pages":"Article 118918"},"PeriodicalIF":8.3,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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