Desalination and Water Treatment最新文献_第9页

Performance of polymeric nanofiltration membranes for non-aqueous systems: experimental results and modeling 聚合物纳滤膜在非水系统中的性能:实验结果和模型

IF 1.1 4区工程技术

Desalination and Water Treatment Pub Date : 2023-01-01 DOI: 10.5004/dwt.2023.29155

H. Shi, Limeng Li, Jiahui Lu, Shengyuan Xu, X. Hu, Rong-xian Zhang, Guoxing Zhu, Weihua Zhu

引用次数: 0

Removal of eosin yellow from wastewaters by the commercial anion exchange membrane BI 商业阴离子交换膜BI去除废水中的伊红黄

IF 1.1 4区工程技术

Desalination and Water Treatment Pub Date : 2023-01-01 DOI: 10.5004/dwt.2023.29368

Khalida Parveen, S. Zafar, Muhammad Imran Khan, Ramsha Anwer, A. Shanableh

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A determining method of the water consultancy project quality guarantee deposit considering the contractor's credit level under the incomplete information condition 不完全信息条件下考虑承包商信用水平的供水咨询工程质量保证金确定方法

IF 1.1 4区工程技术

Desalination and Water Treatment Pub Date : 2023-01-01 DOI: 10.5004/dwt.2023.29435

Xiangtian Nie, Zihan Chen, Min Li, Bo Wang

{"title":"A determining method of the water consultancy project quality guarantee deposit considering the contractor's credit level under the incomplete information condition","authors":"Xiangtian Nie, Zihan Chen, Min Li, Bo Wang","doi":"10.5004/dwt.2023.29435","DOIUrl":"https://doi.org/10.5004/dwt.2023.29435","url":null,"abstract":"This paper studies the quality monitoring decision-making and quality guarantee deposit withhold- ing strategy of the owner in the construction supply chain composed of the owner and the contractor in the engineering construction project under different information environments. Taking the qual- ity monitoring level and quality guarantee deposit retention as the owner’s decision variables and the credit level as the contractor’s decision variables, when the owner’s quality monitoring cost and the contractor’s credit are non-concave and non-convex functions, the optimal solution of the owner’s quality monitoring decision and quality guarantee deposit retention strategy under symmetric information, asymmetric information and incomplete information are deduced by using the maximum principle. Through simulation calculation, the decision results under different information conditions are analyzed. It helps to improve the effectiveness and reliability of the owner’s quality monitoring and realize the expected quality control objectives and quality benefits.","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"49 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83254548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Adsorptive removal of chloroxylenol and chlorophene from aqueous solutions using carbon-halloysite nanocomposites obtained from corrugated cardboard as a carbon precursor 以瓦楞纸板为碳前驱体的碳-高岭土纳米复合材料吸附去除水溶液中的氯二酚和氯苯

IF 1.1 4区工程技术

Desalination and Water Treatment Pub Date : 2023-01-01 DOI: 10.5004/dwt.2023.29212

B. Szczepanik, Laura Frydel, P. Słomkiewicz, D. Banaś, I. Stabrawa, A. Kubala-Kukuś

引用次数: 0

Preparation and adsorption performance of CTMAB-bentonite on landfill leachate ctmab -膨润土的制备及其对垃圾渗滤液的吸附性能

IF 1.1 4区工程技术

Desalination and Water Treatment Pub Date : 2023-01-01 DOI: 10.5004/dwt.2023.29486

Hongyu Shi, Yao Zhang, J. Ye, Jiajin Yu, Lijun Luo, Hong Wang, Min Yang, Guizhen Li

{"title":"Preparation and adsorption performance of CTMAB-bentonite on landfill leachate","authors":"Hongyu Shi, Yao Zhang, J. Ye, Jiajin Yu, Lijun Luo, Hong Wang, Min Yang, Guizhen Li","doi":"10.5004/dwt.2023.29486","DOIUrl":"https://doi.org/10.5004/dwt.2023.29486","url":null,"abstract":"The toxic organic pollutant with high concentration in landfill leachate is increasingly harmful to human health. In order to treat landfill leachate more efficiently, a novel cheap organobentonite (CTMAB-bentonite) was successfully prepared from Na-bentonite modified with cetyltrimethylam-monium bromide (CTMAB) as intercalation agent. The CTMAB-bentonite were characterized by X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy, and the effects of contact time, CTMAB concentration, temperature and pH on the adsorption performance were investigated. XRD analysis results showed that CTMAB with concentration of 4 mmol/5 g was successfully intercalated into bentonite, and the layer spacing of CTMAB-bentonite increased by 6 Å than larger that before modification. The adsorption experiment results indicated that the best adsorption time is 60 min, pH and temperature have little effect on the adsorption performance. The adsorption process of landfill leachate conforms to the Freundlich and pseudo-second-order kinetic model, which indicated a multimolecular layer and chemical adsorption, respectively. Thermodynamic parameters confirmed that adsorption process was spontaneous and exothermic. Bentonite modified by CTMAB has a satisfactory adsorption effect on leachate and satisfactory adsorption capacity. CTMAB-bentonite was an excellent adsorbent for removal of landfill leachate which was promising in the field of wastewater treatment.","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"53 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91219274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Optimization of chemical oxygen demand removal from petroleum refinery wastewater by electrocoagulation using tubular electrochemical reactor with a novel design 新型管式电化学反应器电絮凝法去除炼油废水中化学需氧量的优化设计

IF 1.1 4区工程技术

Desalination and Water Treatment Pub Date : 2023-01-01 DOI: 10.5004/dwt.2023.29139

G. F. Naser, T. Mohammed, A. Abbar

引用次数: 0

The study on visible photocatalytic activity of an oxalate-extended Pb(II) coordination polymer 草酸延伸型铅(II)配位聚合物可见光催化活性研究

IF 1.1 4区工程技术

Desalination and Water Treatment Pub Date : 2023-01-01 DOI: 10.5004/dwt.2023.29546

Jia-Jia Zhang, Yu-Chang Wang, Juan Jin, Wen-Fu Yan, Ying-Chun Guo, Yuan-Peng Wang, Pei-Yu Duan, Li-Xia Yang, Fa-Ju Hou, Jun-Shen Liu

{"title":"The study on visible photocatalytic activity of an oxalate-extended Pb(II) coordination polymer","authors":"Jia-Jia Zhang, Yu-Chang Wang, Juan Jin, Wen-Fu Yan, Ying-Chun Guo, Yuan-Peng Wang, Pei-Yu Duan, Li-Xia Yang, Fa-Ju Hou, Jun-Shen Liu","doi":"10.5004/dwt.2023.29546","DOIUrl":"https://doi.org/10.5004/dwt.2023.29546","url":null,"abstract":"Under the hydrothermal method, a Pb(II) coordination polymer [Pb(ox)(phen) 2 ]·5H 2 O 1 (ox = oxalate, phen = 1,10-phenanthroline) was obtained. Ox ligands exhibit a m 2 -coordination mode, which connect Pb 2+ centers into a 1-D single-chain with ancillary phen molecules. Interestingly, adjacent phen molecules between the chains exist π…π stacking interaction, which extend the 1-D chain into a 2-D supramolecular layer. Compound 1 showed outstanding photocatalytic performance and the degradation efficiency of methylene blue with H 2 O 2 could reach 95.69% under the irradiation of visible light at pH = 10. In addition, 5 cycles of degradation experiments were also carried out, and it was found that the degradation efficiency values with and without H 2 O 2 were reduced by 1.46% and 1.08%, respectively. It was also discussed that which free radical played the dominant role in the photocatalytic process. What’s more, we speculated the possible reaction mechanism based on the Mott–Schottky curve. Meanwhile, the UV visible diffuse reflection of compound 1 was also investigated.","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"23 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73623729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Gemini cationic surfactant based 4-(dimethylamino)benzaldehyde: surface characteristics and biological activity, a straightforward one-step synthesis Gemini阳离子表面活性剂基4-(二甲氨基)苯甲醛:表面特性和生物活性，简单一步合成

IF 1.1 4区工程技术

Desalination and Water Treatment Pub Date : 2023-01-01 DOI: 10.5004/dwt.2023.29503

M. Bekhit, S. Shafek, M. Younus

{"title":"Gemini cationic surfactant based 4-(dimethylamino)benzaldehyde: surface characteristics and biological activity, a straightforward one-step synthesis","authors":"M. Bekhit, S. Shafek, M. Younus","doi":"10.5004/dwt.2023.29503","DOIUrl":"https://doi.org/10.5004/dwt.2023.29503","url":null,"abstract":"A novel three Gemini cationic surfactants was created in this study by one step of alkylating 4-(dimethylamino)benzaldehyde with 1,6-dibromohexane, 1,8-dibromooctane, and 1,10-dibromo-decane in acetone. The chemical structures of the generated cationic surfactants were examined using Fourier-transform infrared spectroscopy and proton nuclear magnetic resonance ( 1 H NMR). After measuring the surface tension at various temperatures, the surface parameters, including the critical micelle concentration (CMC), effectiveness (π CMC ), maximum surface excess (Γ max ), efficiency (Pc 20 ), and minimum surface area ( A min ), were calculated. Adsorption and micellization’s thermodynamic characteristics were calculated, and the results revealed that both processes are sponta-neous. It is clear that the Gemini surfactants created have a high tendency to adsorb at the interfaces as well as micellize in the majority of their solutions. The antibacterial activity of the generated surfactants against Gram-negative, Gram-positive, and fungus was examined. The Gemini surfac-tants’ antibacterial effectiveness was enhanced from 22 to 36 mm by an increase in their hydrophobicity and spacer length.","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"28 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73637850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Contents Vol. 293 目录第293卷

IF 1.1 4区工程技术

Desalination and Water Treatment Pub Date : 2023-01-01 DOI: 10.5004/dwt.2023.29694

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Strontium removal from aquatic solution using electric arc furnace slag: kinetic, equilibrium and thermodynamic approach 利用电弧炉渣去除水中锶:动力学、平衡和热力学方法

IF 1.1 4区工程技术

Desalination and Water Treatment Pub Date : 2023-01-01 DOI: 10.5004/dwt.2023.29559

Milena Tadić, Irena Nikolić, Nevana Cupara, D. Djurović, I. Milašević

{"title":"Strontium removal from aquatic solution using electric arc furnace slag: kinetic, equilibrium and thermodynamic approach","authors":"Milena Tadić, Irena Nikolić, Nevana Cupara, D. Djurović, I. Milašević","doi":"10.5004/dwt.2023.29559","DOIUrl":"https://doi.org/10.5004/dwt.2023.29559","url":null,"abstract":"This study investigated strontium removal from aqueous solution using electric arc furnace (EAF) slag. Influence of sorbent dosage (0.5–3 g/L), pH (2.5–9.5), initial concentration of Sr 2+ (50–300 ppm) and temperature (20°C–45°C) was evaluated. Optimal sorbent dosage and initial Sr 2+ concentration were found to be 1.5 g/L and 150 ppm, respectively. Kinetics, equilibrium and thermodynamic models were used to analyse the data. Kinetics of Sr 2+ adsorption onto EAF slag was evaluated using pseudo-first-order and pseudo-second-order models and results have shown that experimental data had a better fit with the pseudo-second-order model. Langmuir and Freundlich isotherm models were used for evaluating the adsorption equilibrium and it has been shown that Langmuir model better described isotherm data. Maximal adsorption capacities of 111.11, 129.87 and 156.25 mg/g were obtained at 20°C, 30°C and 45°C, respectively. Thermodynamic investigation indicated that adsorption of Sr 2+ onto EAF slag is endothermic in nature, spontaneous and more favorable at higher temperatures.","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"22 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77419951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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