Desalination and Water Treatment最新文献_第2页

Spinel MnCo2O4 for peroxymonosulfate activation to degrade tetracycline hydrochloride 尖晶石MnCo2O4用于过氧单硫酸盐活化降解盐酸四环素

4区工程技术

Desalination and Water Treatment Pub Date : 2025-09-23 DOI: 10.1016/j.dwt.2025.101462

Hao Li, Yulong Yang, Guanghua Liu, Huan Yu, Yunyun Xie, Zhiwen Hu, Tianhao Tang, Qibing Chang

{"title":"Spinel MnCo2O4 for peroxymonosulfate activation to degrade tetracycline hydrochloride","authors":"Hao Li, Yulong Yang, Guanghua Liu, Huan Yu, Yunyun Xie, Zhiwen Hu, Tianhao Tang, Qibing Chang","doi":"10.1016/j.dwt.2025.101462","DOIUrl":"https://doi.org/10.1016/j.dwt.2025.101462","url":null,"abstract":"Peroxymonosulfate (PMS)-based advanced oxidation technology is an important way to efficiently remove emerging contaminants. This study synthesizes an MnCo 2 O 4 catalyst via a hydrothermal method to activate PMS for degrading tetracycline hydrochloride (TC). The effects of hydrothermal reaction parameters and calcination temperature on the removal efficiency of TC were systematically investigated. The prepared MnCo 2 O 4 achieved a high removal efficiency of TC (20 mg/L) within 40 min in a pH range of 5–9. Electron paramagnetic resonance and radical quenching experiments confirmed the critical role of SO 4 •− , O 2 ˙ − , and 1 O 2 in TC degradation. The diverse pollutants removal and five-cycle catalytic experiments demonstrated that the MnCo 2 O 4 exhibited superior stability and adaptability. Additionally, the MnCo 2 O 4 catalyst was prepared on the surface of a polymer membrane for a continuous flow-through device, which achieved a rapid and efficient removal of TC (≥ 90 % within 3 min). This study provided a new route for the synthesis of MnCo 2 O 4 with high catalytic performance for TC removal during wastewater purification.","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"324 1","pages":"101462-101462"},"PeriodicalIF":0.0,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Efficient remediation of Cr(VI)-contaminated water and soil via polyethyleneimine-functionalized magnetic sludge biochar 聚乙烯亚胺功能化磁性污泥生物炭对Cr（VI）污染水体和土壤的高效修复

4区工程技术

Desalination and Water Treatment Pub Date : 2025-09-02 DOI: 10.1016/j.dwt.2025.101419

Hongliang Zhang, Wensheng Tang

{"title":"Efficient remediation of Cr(VI)-contaminated water and soil via polyethyleneimine-functionalized magnetic sludge biochar","authors":"Hongliang Zhang, Wensheng Tang","doi":"10.1016/j.dwt.2025.101419","DOIUrl":"https://doi.org/10.1016/j.dwt.2025.101419","url":null,"abstract":"In this study, a polyethyleneimine (PEI)-modified magnetic sludge biochar (N@FeBC) was prepared via coprecipitation and impregnation methods for treating Cr(VI) contamination in aqueous and soils. Under conditions of pH 3 and 298 K, N@FeBC exhibited a utmost Cr(VI) removal amount of 82.97 mg/g. The removal behaviors were most accurately characterized the pseudo-second-order and Langmuir model. Thermodynamics analysis revealed that the reactions were spontaneous, endothermic, and accompanied by increased system entropy. The removal capacities progressively decreased as the pH rose from 2 to 10, with the optimal removal amounts occurring under acidic conditions. While coexisting cations had negligible effects on Cr(VI) adsorption, anions inhibited the process to varying degrees. Interestingly, humic acid presence improved the efficiencies of Cr(VI) removal. Notably, N@FeBC reduced low-concentrations of Cr(VI) in various water matrices to below the WHO drinking water standard (0.05 mg/L), and retained excellent performance after 15 reuse cycles. In soil stabilization tests, N@FeBC more effectively reduced Cr(VI) toxicity in contaminated soil. Mechanistic investigations revealed that Cr(VI) removal occurred via electrostatic attraction to protonated surface functionalities, partial reduction to Cr(III), and subsequent coordination with functional groups. This study indicates that N@FeBC can serve as an efficient material for removing Cr(VI) contamination.","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"324 1","pages":"101419-101419"},"PeriodicalIF":0.0,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147895102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prediction of the isothermal evaporation experiment of actual salt lake brine at 25 ℃ utilizing the extended UNIQUAC model 应用扩展UNIQUAC模型预测实际盐湖卤水25℃等温蒸发实验

4区工程技术

Desalination and Water Treatment Pub Date : 2025-08-29 DOI: 10.1016/j.dwt.2025.101401

Yongming Zhang, Shichun Zhang, Yanfang Ma, Ai‐Jun Jiao, Zhenhai Fu, Haigang Liu

引用次数: 2

Boron extraction from original alkaline brine using synergistic extraction system 用协同萃取系统萃取原碱性盐水中的硼

4区工程技术

Desalination and Water Treatment Pub Date : 2025-07-01 DOI: 10.1016/j.dwt.2025.101329

Licheng Zhang, Yongming Zhang, Feiyu Kong, Xiaowu Peng, Lijuan Li

{"title":"Boron extraction from original alkaline brine using synergistic extraction system","authors":"Licheng Zhang, Yongming Zhang, Feiyu Kong, Xiaowu Peng, Lijuan Li","doi":"10.1016/j.dwt.2025.101329","DOIUrl":"https://doi.org/10.1016/j.dwt.2025.101329","url":null,"abstract":"This paper presents a novel system and method for the extraction and separation of boron from alkaline solutions. The extraction system consists of a 1:1 molar ratio of 2-octanol and salicylate ester, which effectively extracts boron from the solution. The extraction efficiency of boron increases with the pH of the solution, reaching up to 75 % in a single extraction stage when pH > 9. The study also investigates the effects of extraction ratio, extraction time, and extraction temperature on the extraction performance. Under optimized conditions, using natural salt lake brine from Tibet as the raw material, a three-stage countercurrent extraction process can achieve a boron extraction rate of 95 %. After subsequent stripping and concentration, boric acid can be directly produced with a purity exceeding 99 %. Moreover, the extraction system demonstrates good stability during the extraction-stripping cycle. FT-IR and Raman spectrum were employed to investigate the main functional group of the extraction process, and DFT was used to study the coordination mechanism. This work provides an effective pathway for the comprehensive utilization of boron in alkaline solutions. • A novel extraction system for boron extraction was proposed. • The boron in alkaline brine could be directly recovered without acidity adjustment. • A process for boron recovery from alkaline salt lake brine was proposed. • Boric acid with high purity could be prepared from the stripping solution. • Extraction mechanism was investigated by FT-IR and DFT.","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"323 1","pages":"101329-101329"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147902499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient acid orange 74 degradation using electrochemically activated peroxydisulfate with silver nanoparticle–modified carbon paper: Long–term stability through alternating anode–cathode operation 利用电化学活化过硫酸氢盐与纳米银粒子修饰的碳纸高效降解酸橙74：通过阳极-阴极交替操作的长期稳定性

4区工程技术

Desalination and Water Treatment Pub Date : 2025-07-01 DOI: 10.1016/j.dwt.2025.101324

Hao Li, Yubo Qi, Mu Su, Jie Hu, Xiaolan Shen, Shi Chen

{"title":"Efficient acid orange 74 degradation using electrochemically activated peroxydisulfate with silver nanoparticle–modified carbon paper: Long–term stability through alternating anode–cathode operation","authors":"Hao Li, Yubo Qi, Mu Su, Jie Hu, Xiaolan Shen, Shi Chen","doi":"10.1016/j.dwt.2025.101324","DOIUrl":"https://doi.org/10.1016/j.dwt.2025.101324","url":null,"abstract":"Electrodes with high activation efficiency and stability are critical for the electrochemical activation of persulfate. In this study, the effective degradation of acid orange 74 (AO 74) was achieved using the electrochemically activated peroxydisulfate (PDS) with a Ag nanoparticle–modified carbon paper (AgNPs@CP) electrode, demonstrating a 2.5-fold enhancement in the AO 74 degradation rate compared with the CP electrode. The impact of reaction conditions, including AgNPs dosage, PDS content, current density, initial solution pH, and agitation rate, as well as water matrices, such as Cl − , CO 3 2− , and SO 4 2− , on AO 74 degradation was systematically investigated to establish optimal parameters. Radical quenching experiments and electron paramagnetic resonance analysis identified sulfate radical (SO 4 · − ) and hydroxyl radical (·OH) as the dominant reactive species. Gas chromatography–mass spectrometry analysis revealed that AO 74 was primarily transformed into aliphatic organic compounds during electrochemical degradation. Remarkably, the 3-h AO 74 degradation efficiency remained stable over five consecutive cycles through alternating use of the AgNPs@CP anode and CP cathode, facilitated by Ag 0 /Ag + /Ag 2+ redox cycling that enabled Ag recovery and minimized Ag leaching. The electrochemically activated PDS with the AgNPs@CP electrode shows promise as a pretreatment technology for dyeing wastewater with low biodegradability. • SO 4 · − /·OH radical oxidation dominated AO 74 degradation • AgNPs@CP anode and CP cathode alternation enhanced system stability • Ag/Ag + /Ag 2+ redox cycling mitigated silver dissolution • AgNPs@CP/PDS effectively pretreated refractory dyeing wastewater","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"323 1","pages":"101324-101324"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147885217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Closed-loop phosphorus recovery via engineered biochar: Synergistic co-pyrolysis of invasive water hyacinth with industrial red mud 工程生物炭闭环磷回收：入侵水葫芦与工业赤泥协同共热解

4区工程技术

Desalination and Water Treatment Pub Date : 2025-07-01 DOI: 10.1016/j.dwt.2025.101397

Runjuan Zhou, Penghui Li, Ming Zhang

引用次数: 4

Fabrication of high-permeance dye separation porous membranes based on covalent triazine frameworks via interfacial crystallization 界面结晶法制备共价三嗪骨架高渗透染料分离多孔膜

4区工程技术

Desalination and Water Treatment Pub Date : 2025-07-01 DOI: 10.1016/j.dwt.2025.101305

Senhao Wen, Yefei Tian

{"title":"Fabrication of high-permeance dye separation porous membranes based on covalent triazine frameworks via interfacial crystallization","authors":"Senhao Wen, Yefei Tian","doi":"10.1016/j.dwt.2025.101305","DOIUrl":"https://doi.org/10.1016/j.dwt.2025.101305","url":null,"abstract":"Confronting the escalating global issue of water pollution, membrane separation technology is regarded as one of the most effective methods for wastewater treatment due to its energy-saving potential, high separation efficiency, and environmental friendliness. Covalent organic frameworks (COFs) present unique advantages in the field of membrane separation technology owing to their high specific surface area and tunable pore size. In this study, a new type of triazine-based COF (BTA-TAPT-COF) membrane is synthesized by using 1,3,5-tris-(4-aminophenyl) triazine and 1,3,5-tricarbaldehyde via a room-temperature interfacial polymerization. The porous and crystalline thin membrane exhibits a continuous and dense surface morphology and multi-layer cross-section structure. The BTA-TAPT-COF membrane showed a relatively high rejection rate of 98% for acidic fuchsin, 92% for malachite green, and 91% for Congo red, respectively. The permeance of BTA-TAPT-COF membrane to acetonitrile can be up to 816 L m -2 h -1 bar -1 , and the permeance to ethanol is 647 L m -2 h -1 bar -1 . In the continuous separation test, the rejection rate of the prepared BTA-TAPT-COF membrane can be recovered up to 90%. These findings provide new strategies for the development of high-permeance triazine covalent organic framework membranes. • A new triazine-based COF film was synthesized by interfacial polymerization. • The COF membrane shows a multi-layer structure and continuous surface morphology. • The membrane exhibits an exceptionally high dye rejection rate, approaching 100%. • The membrane has a siginificantly high flux of 816 L m -2 h -1 bar -1 for acetonitrile.","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"323 1","pages":"101305-101305"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147903551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

UV-initiated synthesis of superporous cryogel loaded with palladium nanoparticles for effective catalytic degradation of Eosin Y 紫外光激发合成负载钯纳米粒子的超孔低温凝胶有效催化降解伊红Y

4区工程技术

Desalination and Water Treatment Pub Date : 2025-04-01 DOI: 10.1016/j.dwt.2025.101220

Abdul Haleem, Jaweria Ambreen, Syeda Huma H. Zaidi, Mohamed Soliman, Nadeem Kizilbash, Daliyah Alruwaili, Jamith Basha, Syafiqah Saidin

引用次数: 3

Mechanism and efficiency of ammonia absorption in dual-phase hollow fiber membrane contactors: A comparative analysis of liquid-liquid vs. gas-Liquid interfacial dynamics 双相中空纤维膜接触器吸氨机理及效率：液-液与气-液界面动力学对比分析

4区工程技术

Desalination and Water Treatment Pub Date : 2025-04-01 DOI: 10.1016/j.dwt.2025.101241

Yuansheng Tang, Wentian Zheng, Wei Bi, Guangxing Yang, Zibo Wang, Fengmi Zeng, Xianhui Li

{"title":"Mechanism and efficiency of ammonia absorption in dual-phase hollow fiber membrane contactors: A comparative analysis of liquid-liquid vs. gas-Liquid interfacial dynamics","authors":"Yuansheng Tang, Wentian Zheng, Wei Bi, Guangxing Yang, Zibo Wang, Fengmi Zeng, Xianhui Li","doi":"10.1016/j.dwt.2025.101241","DOIUrl":"https://doi.org/10.1016/j.dwt.2025.101241","url":null,"abstract":"Liquid-liquid membrane contactors (LLMC) and Gas-liquid membrane contactors (GLMC) have emerged as promising candidates for energy-efficient ammonia recovery, leveraging their unique interfacial transport characteristics and superior thermal/chemical stability. However, critical knowledge gaps persist in their mass transfer resistance and operational parameter sensitivity during ammonia absorption. This study conducts a systematic comparative analysis of LLMC and GLMC systems through integrated mass transfer modeling and experimental validation under equivalent operating conditions. Results showed that higher pH value is beneficial to the increase of ammonia absorption rate and the reduction of ammonia mass transfer in the LLMC system, whereas the GLMC shows stronger dependence on the feed flow velocity. The long-term stability testing demonstrates that the LLMC was more suitable for the treatment of wastewater with higher ammonia concentration, whereas the GLMC had an advantage for treating wastewater with lower ammonia concentration particularly under the intermittent operation. This work provides guidance in selection criteria for membrane contactor implementation, advancing the development of precise-controlled ammonia recovery systems in wastewater treatment. • Two types of membrane contactors have been systematically compared • LLMC was more sensitive to the pH value of feed solution • The feed flow velocity had more influences on GLMC • A critical absorbent concentration threshold existed in LLMC and GLMC • LLMC was more suitable for wastewater with higher ammonia concentration","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"322 1","pages":"101241-101241"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147921973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Effect of Fe3O4 substrate preparation method for Fe3O4/Ag composite on methyl orange and 4-nitrophenol catalytic reduction Fe3O4/Ag复合材料底物制备方法对甲基橙和4-硝基苯酚催化还原的影响

4区工程技术

Desalination and Water Treatment Pub Date : 2025-04-01 DOI: 10.1016/j.dwt.2025.101218

An Nang Vu, Le Ngoc Truc, Thanh- My T. Nguyen, Uyen N. Nguyen-Thai, Kim Nguyen, L. Vu

{"title":"Effect of Fe3O4 substrate preparation method for Fe3O4/Ag composite on methyl orange and 4-nitrophenol catalytic reduction","authors":"An Nang Vu, Le Ngoc Truc, Thanh- My T. Nguyen, Uyen N. Nguyen-Thai, Kim Nguyen, L. Vu","doi":"10.1016/j.dwt.2025.101218","DOIUrl":"https://doi.org/10.1016/j.dwt.2025.101218","url":null,"abstract":"We present a straightforward method for creating reusable magnetic Fe 3 O 4 /Ag catalysts. Three distinct Fe 3 O 4 varieties were synthesized using different methods, and Ag nanoparticles were deposited onto the Fe 3 O 4 matrix via a hydrothermal process. The resulting Fe 3 O 4 and Fe 3 O 4 /Ag materials were characterized by XRD, XPS, FT-IR, Raman, DLS, FE-SEM, TEM, EDX, VSM, and UV-Vis spectroscopy. XRD analysis of the Fe 3 O 4 particles synthesized using the solvothermal reduction process (S2) revealed firm diffraction peaks, indicating high crystallinity. After hydrothermal treatment, S2/Ag retained a hollow spherical morphology and magnetic properties similar to Fe 3 O 4 . The synthesized Fe 3 O 4 /Ag catalytic performance was evaluated for the reduction of 4-nitrophenol (4-NP) and methyl orange (MO) dye in the presence of NaBH 4 . All catalysts effectively reduced both dyes and could be magnetically separated from the aqueous solution. The P1/Ag catalyst achieved over 95% reduction of MO and 4-NP within 2 minutes. S2/Ag exhibited superior stability, preventing Ag leaching during the reaction. Furthermore, its high saturation magnetization allows easy magnetic extraction from the solution. These findings strongly suggest S2/Ag as a promising catalyst due to its selectivity and advantageous properties.","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"322 1","pages":"101218-101218"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147921070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1