A. Bakka, H. Saffaj, K. Aziz, H. Zidouh, T. Saffaj, F. Aziz, I. Adraoui, R. Mamouni, N. Saffaj
{"title":"Modeling of pesticide adsorption on fixed bed column using biomaterials: response surface methodology optimization","authors":"A. Bakka, H. Saffaj, K. Aziz, H. Zidouh, T. Saffaj, F. Aziz, I. Adraoui, R. Mamouni, N. Saffaj","doi":"10.5004/dwt.2023.29338","DOIUrl":"https://doi.org/10.5004/dwt.2023.29338","url":null,"abstract":"","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"47 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75722551","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}
M. Eryiğit, S. Sulaiman, Abu Baker A. Najm, Nibras Mahmood Mhedi
{"title":"Optimal management of multiple water resources by a heuristic optimization for a water supply in the desert cities of Western Iraq","authors":"M. Eryiğit, S. Sulaiman, Abu Baker A. Najm, Nibras Mahmood Mhedi","doi":"10.5004/dwt.2023.28239","DOIUrl":"https://doi.org/10.5004/dwt.2023.28239","url":null,"abstract":"","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"4 1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79893689","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":"Contents Vol. 289","authors":"","doi":"10.5004/dwt.2023.29582","DOIUrl":"https://doi.org/10.5004/dwt.2023.29582","url":null,"abstract":"","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81604238","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}
Ning Liu, Xing-yu Liu, Liangshi Wang, Xuezhe Zhu, Q. Gu
Circulating cooling water consumes a large amount of water in thermal power plant, and there are some problems such as scaling and corrosion in the system. This study presents a novel circulating cooling water treatment process based on microbes. The mechanism and influencing factors of microbial treatment process of circulating cooling water is studied. Water from circulating cooling system of a 300 MW thermal power unit was used, dynamic simulation test was carried out and com- pared between the microbial treatment process and the traditional chemical treatment process. The results showed that nutrient solution dosage on calcium hardness is positive, while the interaction between nutrient solution dosage and aeration rate has negative effect. When ammonia concentration is 10–50 mg/L and aeration rate is 1–3 L, and the minimum calcium hardness is 18.3 mmol/L. Reducing the concentration of nutrient solution and increasing the aeration rate are beneficial to slow down the corrosion of carbon steel and stainless steel. When ammonia concentration is 10–50 mg/L and aeration rate is 1–3 L, the minimum corrosion rates are 0.01552 and 0.00110 mm/a, respectively. Compared with traditional chemical treatment process, the microbial treatment process can achieve the scale inhibition and corrosion inhibition target at high concentration ratio, the highest concentration ratio can reach 5.4, and the corrosion rate of carbon steel and stainless steel is low. The green, efficient and environment-friendly microbial treatment process provides a new method for circulating cooling water treatment, which can obtain stable and economical operation of circulating cooling water system under high concentration ratio.
{"title":"Circulating cooling water treatment of thermal power plant based on microbial treatment process","authors":"Ning Liu, Xing-yu Liu, Liangshi Wang, Xuezhe Zhu, Q. Gu","doi":"10.5004/dwt.2023.29362","DOIUrl":"https://doi.org/10.5004/dwt.2023.29362","url":null,"abstract":"Circulating cooling water consumes a large amount of water in thermal power plant, and there are some problems such as scaling and corrosion in the system. This study presents a novel circulating cooling water treatment process based on microbes. The mechanism and influencing factors of microbial treatment process of circulating cooling water is studied. Water from circulating cooling system of a 300 MW thermal power unit was used, dynamic simulation test was carried out and com- pared between the microbial treatment process and the traditional chemical treatment process. The results showed that nutrient solution dosage on calcium hardness is positive, while the interaction between nutrient solution dosage and aeration rate has negative effect. When ammonia concentration is 10–50 mg/L and aeration rate is 1–3 L, and the minimum calcium hardness is 18.3 mmol/L. Reducing the concentration of nutrient solution and increasing the aeration rate are beneficial to slow down the corrosion of carbon steel and stainless steel. When ammonia concentration is 10–50 mg/L and aeration rate is 1–3 L, the minimum corrosion rates are 0.01552 and 0.00110 mm/a, respectively. Compared with traditional chemical treatment process, the microbial treatment process can achieve the scale inhibition and corrosion inhibition target at high concentration ratio, the highest concentration ratio can reach 5.4, and the corrosion rate of carbon steel and stainless steel is low. The green, efficient and environment-friendly microbial treatment process provides a new method for circulating cooling water treatment, which can obtain stable and economical operation of circulating cooling water system under high concentration ratio.","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"33 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81908488","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":"Performance enhancement of stepped solar still via different sand beds, cooling coil and reflectors","authors":"T. Atteya, Faheem Abbas","doi":"10.5004/dwt.2023.29381","DOIUrl":"https://doi.org/10.5004/dwt.2023.29381","url":null,"abstract":"","PeriodicalId":11260,"journal":{"name":"Desalination and Water Treatment","volume":"11 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84299730","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}
Furaha Ndeki Alphonce, T. Alfredy, A. Hilonga, Y. Jande
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.
本研究旨在利用电容去离子技术研究岩石天然金属氧化物(MO)包埋活性炭(AC)电极对革兰氏阴性(大肠杆菌)和革兰氏阳性(金黄色沙门氏菌)细菌的抑菌活性。通过在1.2 V电势差下进行240 min (4 h)的间歇模式实验，对制备的AC/MO电极的脱盐和消毒性能进行了评价。结果表明，AC/MO电极对Nduruma溪流(天然水)现场水的大肠杆菌和金黄色葡萄球菌的去除率分别达到100%和60%。细菌的去除机制归因于电容脱离子(CDI)过程和物理吸附。该研究突出了AC/MO电极材料作为CDI工艺有效抗菌剂的潜力，这可能对水净化和消毒新技术的开发具有重要意义。
{"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}
M. Hussain, S. Fatima, A. Abbas, Arshad Alb, M. Amin, Gulzar Muhammad, M. Sher
{"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}
A. Wahab, Momal Akram, Muhammad Salman, Abdul Shakoor, Samra Tahir, Umer Farooq, Muzamil Majeed
, 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.
{"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}
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}
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