Desalination and Water Treatment最新文献

{"title":"Naturally occurring metal oxides from rocks as capacitive deionization electrode material for antibacterial activities","authors":"Furaha Ndeki Alphonce, T. Alfredy, A. Hilonga, Y. Jande","doi":"10.5004/dwt.2023.29587","DOIUrl":"https://doi.org/10.5004/dwt.2023.29587","url":null,"abstract":"The present study aimed to investigate the efficacy of activated carbon (AC) electrode embedded with naturally occurring metal oxides (MO) from rocks for antibacterial activities against both gram-negative ( Escherichia coli ) and gram-positive ( Salmonella aureus ) bacteria using capacitive deioniza-tion technique. The desalination and disinfection performance of the fabricated AC/MO electrode was evaluated through the batch mode experiments conducted at a potential difference of 1.2 V for 240 min (4 h). The results revealed that the AC/MO electrode achieved a complete removal efficiency of 100% for E. coli and 60% for S. aureus in the field water collected from Nduruma stream (natural water). The bacterial removal mechanism was attributed to the capacitive deion-ization (CDI) process and physical adsorption. The study highlights the potential of AC/MO electrode material as an effective antibacterial agent for the CDI process, which may have significant implications for the development of new technologies for water purification and disinfection.","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"21 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84305073","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}

{"title":"Removal of Cr(III) and Ni(II) from aqueous solution using a mixed cellulose ether-ester hydroxyethylcellulose adipate","authors":"M. Hussain, S. Fatima, A. Abbas, Arshad Alb, M. Amin, Gulzar Muhammad, M. Sher","doi":"10.5004/dwt.2023.29231","DOIUrl":"https://doi.org/10.5004/dwt.2023.29231","url":null,"abstract":"","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"67 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74152493","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}

{"title":"Sorptive activity of potential native biosorbent for the elimination of lead and cadmium in one and two-component system: characterization, kinetic activity, and mechanism exploration","authors":"A. Wahab, Momal Akram, Muhammad Salman, Abdul Shakoor, Samra Tahir, Umer Farooq, Muzamil Majeed","doi":"10.5004/dwt.2023.29450","DOIUrl":"https://doi.org/10.5004/dwt.2023.29450","url":null,"abstract":", and change in surface morphology by scanning electron microscopy. The point of zero charges pH pzc of xanthate-modified P. vulgaris was observed to be 7.20 which makes it appropriate for the sorp- tion of cations. The batch sorption implementation of xanthate-modified P. vulgaris includes sorbent amount, pH, linear and non-linear regression analysis, and kinetic curves. The xanthate-modified P. vulgaris adsorbed 95.65% cadmium (at pH 4.0) and 90.36% of lead (at pH 5.0) from a single aqueous system. The sorption of Pb 2+ and Cd 2+ by xanthate-modified P. vulgaris follow the linear regression of Langmuir isotherm with q max of 160.97 and 150.50 mg/L, respectively which is substantially greater than that of many other reported ones. The xanthate-modified P. vulgaris demonstrated rapid uptake capacity of Pb 2+ and Cd 2+ following the high value of correlation coefficient with pseudo-second-order kinetics. This sorption process for Pb 2+ and Cd 2+ was found to be endothermic and spontaneous. The binding capacities however reduced in the binary system. This, therefore revealed that the xanthate-modified P. vulgaris can be an encouraging biosorbent for the remediation of Pb 2+ and Cd 2+ from contaminated water.","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"25 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75884123","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}

{"title":"Floristic composition and plant community diversity of water-level fluctuation zone of Nanwan Reservoir","authors":"M. Fu, Zhen Wang, Xiangpeng Liang","doi":"10.5004/dwt.2023.29438","DOIUrl":"https://doi.org/10.5004/dwt.2023.29438","url":null,"abstract":"To study the vegetation community structure and diversity characteristics in the water-level fluctu- ation zone of Nanwan Reservoir, the water-level fluctuation zone of Nanwan Reservoir was divided into two water level elevations, one being 95–100 m and the other being 100–105 m. Subsequently, 3 typical plant communities of the water-level fluctuation zone of Nanwan Reservoir were selected for investigation. In the present study, a total of 34 species of plants were found. In listing the number of plants by family in order, the most abundant was Compositae , the second most abundant plant was Gramineae and the third most abundant was Legumes. In the present survey, Compositae accounted for 40.9% of the total number of species in the present survey, Gramineae accounted for 20.7% of the total number of species, and legumes accounted for 19.8% of the total number of species. According to the important values, the dominant species of different water level elevations in the descending zone of Nanwan Reservoir were sequenced. In the low water level elevation region, the first domi- nant species was Hemarthria altissima , the second dominant species was Erigeron canadensis , and the third dominant species was Kummerowia striata . However, in the high water level elevation region, the first dominant species was Kummerowia striata , the second dominant species was Hemarthria altissima , and the third dominant species was Carex neurocarpa . At the same time, in the low water level elevation region, a total of 19 species of plants were found. Among the 19 species of plants, annual herbs had the highest proportion at 47.37%, and there were 9 kinds of annual herbs. In the high water level elevation region, a total of 28 species of plants were found. In the 28 species of plants, perennial herbs had the highest proportion at 53.57%, and there were 15 kinds of perennial herbs. As the elevation of the water level rose, the diversity index, the evenness index and the richness index all increased, while the dominance index decreased. In conclusion, there was variation in the water level elevation in the water-level fluctuation zone of Nanwan Reservoir. An observation can be made that the different intensity of flood disturbance caused by the elevation change in the water- level fluctuation zone of Nanwan Reservoir is a significant factor in the structure and diversity of plant communities.","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"3 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75961706","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}

{"title":"Municipal wastewater management in Ukraine","authors":"I. Vasylkivskyi, V. Ishchenko, H. Sakalova, Garcia Camacho Hernan Ullianodt, S. Polyvanyi","doi":"10.5004/dwt.2023.29379","DOIUrl":"https://doi.org/10.5004/dwt.2023.29379","url":null,"abstract":"","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"5 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74866271","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}

{"title":"Excellent driven rapid photocatalytic activity with high reusable magnetic nanocomposite in tetracycline degradation under simulated sunlight","authors":"N. Nasseh, Narjes Sadat Mazari Moghaddam, B. Barikbin, R. Khosravi","doi":"10.5004/dwt.2023.29389","DOIUrl":"https://doi.org/10.5004/dwt.2023.29389","url":null,"abstract":"The present experimental study aimed to determine the efficiency of CuS-coated magnetic acti- vated carbon nanocomposite for the photocatalytic removal of tetracycline (TC) under simulated sunlight. The effects of pH 3, 5, 7, 9, contaminant concentration 5–10–20–50–100 mg/L, nanocat- alyst dose 0.025, 0.25, 0.5, 1, 1.5, 2, and 2.5 g/L, and exposure time 1–200 min on the TC removal by the synthesized nanocatalyst were investigated. The maximum removal efficiency was achieved at pH = 9. The TC removal efficiency increased with increasing exposure time and decreasing TC concentration from 100% to 52.1%. The TC removal ratio initially (increased with increasing the nanocatalyst dose from 0.025 to 1.5 g/L (from 37.52% to 89.13%) but started to decrease (54.43%) once the dose was raised above a certain level. The kinetics of the process was found to closely fol- low the pseudo-first-order kinetic model with R 2 > 0.9. After determining the optimal conditions for TC removal with the synthesized nanocatalyst under simulated sunlight, the chemical oxygen demand (COD) and total organic carbon (TOC) removal rates under the same conditions were also experimentally investigated. This investigation showed the COD and TOC removal rates to be 78.13% and 65.81%, respectively. The test results also showed the high recoverability and reusability of the synthesized nanocomposite, with only a 6.08% drop in removal efficiency after six cycles. Also, the effects of some scavenging agents were studied and the results showed the most important role of IPA as a hydroxyl radical scavenger in decreasing the photocatalytic activity of nanocomposite. This confirms that hydroxyl radicals play the most important role in the degradation of tetracycline molecules with respect to e – /h + pairs or • O 2– . Overall, the results demonstrated the excellent tetracycline removal capability of the synthesized nanocomposite under simulated sunlight.","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"88 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75214897","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}

{"title":"Desalination of aqueous solutions using interpenetrating polymeric membranes-integrated zeolite through pervaporation and reverse osmosis","authors":"Masoud Jafarian, A. Malekpour, G. A. Koohmareh","doi":"10.5004/dwt.2023.29293","DOIUrl":"https://doi.org/10.5004/dwt.2023.29293","url":null,"abstract":"","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"36 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82199995","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}

{"title":"Application of response surface methodology to optimize 4-nitrophenol adsorption by prepared molecular imprinting polymers","authors":"Yiqi Liu, Gang Xue, Ya-Sheng Ma, Lei Ding, Yanli Kong, Yang Gao, Zhong-lin Chen","doi":"10.5004/dwt.2023.29149","DOIUrl":"https://doi.org/10.5004/dwt.2023.29149","url":null,"abstract":"","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"12 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82911286","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}

{"title":"Investigation of oily wastewater treatment by few-layer graphene (FLG) adsorbent and UV-Vis spectral analysis","authors":"Hamid Motahari, Parvaneh Haghighi, M. Khajeh Aminian","doi":"10.5004/dwt.2023.29176","DOIUrl":"https://doi.org/10.5004/dwt.2023.29176","url":null,"abstract":"","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"12 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82923294","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}

{"title":"Kinetics of changes in chemical oxygen demand values in leachate treated with Fenton reagent","authors":"J. Muszyńska, J. Gawdzik","doi":"10.5004/dwt.2023.29397","DOIUrl":"https://doi.org/10.5004/dwt.2023.29397","url":null,"abstract":"","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"7 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89558313","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}