Desalination and Water Treatment最新文献_第7页

Exceptional adsorption properties of amino-carboxylic acid chelating fibers for calcium, magnesium, and strontium ions 氨基羧酸螯合纤维对钙、镁和锶离子的特殊吸附性能

4区工程技术

Desalination and Water Treatment Pub Date : 2023-11-01 DOI: 10.5004/dwt.2023.29939

D.K. Liu, Gang Xu, Zhao-Wen Chen, Li Wang, Minghong Wu

引用次数: 0

Highly selective and efficient removal of phosphate by La(OH)3-loaded Juncus effusus with a three-dimensional structure La(OH)3负载的三维结构积液高选择性高效去除磷酸盐

4区工程技术

Desalination and Water Treatment Pub Date : 2023-11-01 DOI: 10.5004/dwt.2023.29997

Yuhang Xu, Wei Li, Qin Sisi, Kai Su, Junmin Chen, Shengli Zhang

{"title":"Highly selective and efficient removal of phosphate by La(OH)3-loaded Juncus effusus with a three-dimensional structure","authors":"Yuhang Xu, Wei Li, Qin Sisi, Kai Su, Junmin Chen, Shengli Zhang","doi":"10.5004/dwt.2023.29997","DOIUrl":"https://doi.org/10.5004/dwt.2023.29997","url":null,"abstract":"In this study, La(OH) 3 -loaded Juncus effusus (La-JE) with a three-dimensional structure was prepared via an in-situ precipitation and then wrapped in a cellulose membrane. The La-JE not only avoided the leakage of La(OH) 3 but also was separated from solution easily. The optimal pH for phosphate removal by the La-JE was 6. The removal rate of phosphate was positively correlated with adsorption time, La-JE dosage and reaction temperature, and negatively correlated with phosphate concentration. The adsorption process conformed to pseudo-second-order kinetic model and was better fit by Freundlich model. At 25C, the maximum adsorption capacity of the La-JE was 22.75 mgP/g. The influence of SO 4 2-, Cl -, NO 3 -, NH 4 + , HCO 3 -and CO 3 2-on phosphate removal was negligible, suggesting that the La-JE had good anti-interference ability. Mechanism analysis showed that the removal process of phosphate was related to both ligand exchange and surface precipitation. The application in real water environment exhibited that the La-JE had good potential for advanced dephosphorization of sewage treatment plant and natural waterbody remediation.","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"311 1","pages":"228-236"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://doi.org/10.5004/dwt.2023.29997","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147915015","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

Controllable one-step production of 2D MgAl-LDH for photocatalytic removal of tetracycline 光催化脱除四环素的二维MgAl-LDH一步法可控制备

4区工程技术

Desalination and Water Treatment Pub Date : 2023-11-01 DOI: 10.5004/dwt.2023.30061

Xinqi Long, Yinke Wang, Jun Hu, Lixu Wu, Chun Sun, Feipeng Jiao

引用次数: 3

Adsorption properties of carboxymethyl cellulose/carbon hydrogel for copper and methylene blue 羧甲基纤维素/碳水凝胶对铜和亚甲基蓝的吸附性能

4区工程技术

Desalination and Water Treatment Pub Date : 2023-10-01 DOI: 10.5004/dwt.2023.29824

Keke Chen

引用次数: 6

Efficient adsorption of fluoride ions by polyethyleneimine modified diatomite under different conditions in a fixed bed column 聚乙烯亚胺改性硅藻土在固定床柱上不同条件下对氟离子的高效吸附

4区工程技术

Desalination and Water Treatment Pub Date : 2023-09-01 DOI: 10.5004/dwt.2023.29906

Yanzhuo Zhang, Haiqin Zhang, Jing Zhao, Xiaozhuan Zhang, Zhiguo Cao, Binbin Jiang

引用次数: 3

Preparation of nZVI/MCM-41/rGO for efficient adsorption of cadmium ions from aqueous solution nZVI/MCM-41/rGO高效吸附水中镉离子的制备

4区工程技术

Desalination and Water Treatment Pub Date : 2023-09-01 DOI: 10.5004/dwt.2023.29856

Mingyue Piao, Xue Peng, Huishi Du, Hongxue Du, Wei Zhang, Yuwei Sun, Honghui Teng

{"title":"Preparation of nZVI/MCM-41/rGO for efficient adsorption of cadmium ions from aqueous solution","authors":"Mingyue Piao, Xue Peng, Huishi Du, Hongxue Du, Wei Zhang, Yuwei Sun, Honghui Teng","doi":"10.5004/dwt.2023.29856","DOIUrl":"https://doi.org/10.5004/dwt.2023.29856","url":null,"abstract":"Cadmium (Cd) emissions have a negative impact on both human health and the environment. Although nano zero-valent iron (nZVI) offers a lot of potential for water pollution treatment, it has been constrained by its instability and ease of aggregation. For the elimination of Cd(II) from aqueous solution, nZVI/MCM supported nZVI (nZVI/MCM-41/rGO) was designed to improve its dispersion and stability. It had a rough, porous structure with apparent Fe (0) crystallinity and slight rGO crystallinity. On the surface of nZVI/MCM-41/rGO, several oxygen-containing groups were detected. The specific surface area was 15.94 cm 2 /g, and the pore diameter was concentrated at 23.82 nm. The best performance was occurred at pH 6 with an adsorbent dosage of 2 g/L, and a maximum adsorption capacity of 31 mg/g was achieved after 600 min. Cd(II) removal process was well fitted with second-order kinetic, Langmuir and Freundlich isotherm. The thermodynamic parameter was also analyzed and proved that it was an endothermic (H > 0) and spontaneous (G < 0) progress. During adsorption, the crystal type and functional groups of nZVI/MCM-41/ rGO did not change, but Fe (0) was oxidized.","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"307 1","pages":"120-129"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://doi.org/10.5004/dwt.2023.29856","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147887248","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

Adsorption difference between Cu2+ and Zn2+ on sodium dodecyl sulfate/chitosan-modified semi-carbonized fibers 十二烷基硫酸钠/壳聚糖改性半碳化纤维对Cu2+和Zn2+的吸附差异

4区工程技术

Desalination and Water Treatment Pub Date : 2023-09-01 DOI: 10.5004/dwt.2023.29913

Wenbin Li, Ruyi Li, Hongyan Deng, Li-na Wen, Bixia Wang, Touqeer Abbas, Hong Yang

引用次数: 2

Study on the treatment of Cd(II) contaminated wastewater by multi-walled carbon nanotubes/chitosan hydrogel film 多壁碳纳米管/壳聚糖水凝胶膜处理镉污染废水的研究

4区工程技术

Desalination and Water Treatment Pub Date : 2023-09-01 DOI: 10.5004/dwt.2023.29822

Wei Jia, Hao Sun, Hongjuan Sha, Jianxin Zhong

引用次数: 4

Adsorption performance of antibiotics using magnetized–nitrated semi- carbonized fiber loaded with metal ions 负载金属离子的磁化硝化半碳化纤维对抗生素的吸附性能

4区工程技术

Desalination and Water Treatment Pub Date : 2023-08-01 DOI: 10.5004/dwt.2023.29845

Wenbin Li, Jiang-ming Ouyang, Ke Xie, Hongyan Deng, Yin-fei Wang, Touqeer Abbas, Bixia Wang

{"title":"Adsorption performance of antibiotics using magnetized–nitrated semi- carbonized fiber loaded with metal ions","authors":"Wenbin Li, Jiang-ming Ouyang, Ke Xie, Hongyan Deng, Yin-fei Wang, Touqeer Abbas, Bixia Wang","doi":"10.5004/dwt.2023.29845","DOIUrl":"https://doi.org/10.5004/dwt.2023.29845","url":null,"abstract":"This study investigated the adsorption performance of antibiotics using modified semi-carbonized fibers (SCF) prepared from polyacrylonitrile and loaded with metal ions. Nitrated semi-carbonized fibers (N-SCF) and magnetized-nitrated semi-carbonized fibers (MN-SCF) were prepared through nitrification and magnetization methods, and different metal ion-loaded MN-SCFs were obtained by loading Ca and Mg ions onto MN-SCF. The effects of pH, temperature, and ionic strength on antibiotic adsorption were analyzed. The adsorption kinetics and thermodynamics of tetracycline (TC), chlortetracycline (CTC), and oxytetracycline (OTC) were studied using batch experiments. Results showed that (1) the adsorption of antibiotics on the tested materials initially increased and then decreased with increasing pH and ionic strength, reaching maximum values at pH 4 and 0.1 mol/L, respectively. (2) Higher temperatures facilitated the adsorption of antibiotics on the materials, which followed a chemisorption mechanism. (3) The Langmuir model provided a better fit for the adsorption isotherms of TC, CTC, and OTC compared with the Freundlich model, suggesting monolayer adsorption. (4) The maximum adsorption capacity (q m ) of the antibiotics ranged from 0.80 to 3.97 mg/g, with of CTC > OTC > TC. Metal ion-loaded MN-SCFs exhibited higher adsorption amounts compared with MN-SCF alone.","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"304 1","pages":"228-237"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://doi.org/10.5004/dwt.2023.29845","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147884815","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

Study of graphdiyne biomimetic nanomaterials as fluorescent sensors of ciprofloxacin hydrochloride in water environment 石墨炔仿生纳米材料作为水环境中盐酸环丙沙星荧光传感器的研究

4区工程技术

Desalination and Water Treatment Pub Date : 2023-08-01 DOI: 10.5004/dwt.2023.29723

Peilong Xu, Xuehua Liu, Yuling Zhao, Dan Lan, Incheol Shin

引用次数: 56