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.
{"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}
I. Vasylkivskyi, V. Ishchenko, H. Sakalova, Garcia Camacho Hernan Ullianodt, S. Polyvanyi
{"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}
N. Nasseh, Narjes Sadat Mazari Moghaddam, B. Barikbin, R. Khosravi
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.
{"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}
Yiqi Liu, Gang Xue, Ya-Sheng Ma, Lei Ding, Yanli Kong, Yang Gao, Zhong-lin Chen
{"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}
Hamid Motahari, Parvaneh Haghighi, M. Khajeh Aminian
{"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}
S. Nourbakhsh, H. Hassanpour Darvishi, H. Ebrahimi
{"title":"Develop and prioritize domestic wastewater use scenarios with SWOT and QSPM analytical matrices - case study: Sabzevar City Treatment Plant","authors":"S. Nourbakhsh, H. Hassanpour Darvishi, H. Ebrahimi","doi":"10.5004/dwt.2023.29303","DOIUrl":"https://doi.org/10.5004/dwt.2023.29303","url":null,"abstract":"","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"34 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81326633","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":"Photocatalytic treatment of Cr(VI) with ZrO2 and application of by-products as ethane dehydrogenation catalyst","authors":"Jing Yang, Siyuan Yang, Jing Zhang, Jian He, Wei Jiang","doi":"10.5004/dwt.2023.29337","DOIUrl":"https://doi.org/10.5004/dwt.2023.29337","url":null,"abstract":"","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"84 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88391209","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}
Norouz Mahmoudi, Ahmad Jonidi Jafari, M. Farzadkia, M. Kermani, A. Sheikhmohammadi, Hasan Pasalari, A. Esrafili
{"title":"Photo-degradation and mineralization of ciprofloxacin by consecutive application UV/iodide process and biological treatment","authors":"Norouz Mahmoudi, Ahmad Jonidi Jafari, M. Farzadkia, M. Kermani, A. Sheikhmohammadi, Hasan Pasalari, A. Esrafili","doi":"10.5004/dwt.2023.29534","DOIUrl":"https://doi.org/10.5004/dwt.2023.29534","url":null,"abstract":"","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"42 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91182053","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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