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151.
Mahdavian Seyed Mohammadreza Ahmadpour Borazjani Mahmoud Mohammadi Hamid Asgharipour Mohammad Reza Najafi Alamdarlo Hamed 《Environmental science and pollution research international》2022,29(35):52457-52472
Environmental Science and Pollution Research - Iran’s agricultural production has expanded significantly in recent years. Environmental pollution caused by the use of energy and chemical... 相似文献
152.
Naimi Nayera Pilevar Zahra Ranaei Vahid Mahmudiono Trias Fakhri Yadolah Paseban Ali Atamaleki Ali Janghorban Firoozeh Mousavi Khaneghah Amin 《Environmental science and pollution research international》2022,29(36):54013-54024
Environmental Science and Pollution Research - The presence of potentially toxic elements (PTEs) in crops can directly/indirectly affect consumers’ health. The contamination of apple as one... 相似文献
153.
Mostafa Islam Mohamed Nashwa Hashem Mohamed Basant Almeer Rafa Abulmeaty Mahmoud M. A. Bungau Simona G. El-Shazly Assem Mohamed Yahya Galal 《Environmental science and pollution research international》2022,29(18):26775-26791
Environmental Science and Pollution Research - Coronavirus disease 2019 (COVID-19) is a rapidly growing pandemic that requires urgent therapeutic intervention. Finding potential anti COVID-19 drugs... 相似文献
154.
Sorption-desorption of cadmium in aqueous palygorskite, sepiolite, and calcite suspensions: isotherm hysteresis 总被引:2,自引:0,他引:2
Sorption isotherms have been widely used to assess the heavy metal retention characteristics of soil particles. Desorption behavior of the retained metals, however, usually differ from that of sorption, leading to a lack of coincidence in the experimentally obtained sorption and desorption isotherms. In this study, we examine the nonsingularity of cadmium (Cd) sorption–desorption isotherms, to check the possible hysteresis and reversibility phenomena, in aqueous palygorskite, sepiolite and calcite systems. Sorption of Cd was carried out using a 24-h batch equilibration experiment with eight different Cd solution concentrations, equivalent to 20–100% of maximum sorption capacity of each mineral. Immediately after sorption, desorption took place using successive dilution method with five consecutive desorption steps. Both Cd sorption and desorption data were adequately described by Freundlich equation (0.81 < r2 < 0.99). The sorption and desorption reactions, however, did not provide the same isotherms, indicating that hysteresis occurred in Cd sorption–desorption processes. The extent of hysteresis was quantified based on the differences obtained from sorption and desorption isotherms regarding the amount of Cd sorbed, the Freundlich exponent, and the Cd distribution coefficient. The results revealed that, sepiolite possessed the most hysteretic behavior among the minerals studied. Calcite showed much smaller hysteresis compared to the other two silicate clays at low Cd surface load, but its hysteresis indices significantly increased, and exceeded that of palygorskite, as the amount of Cd in the systems increased. The average amount of Cd released after five desorption steps, was 13.8%, 2.2% and 3.6% for the palygorskite, sepiolite and calcite, respectively, indicating that a large portion of Cd was irreversibly retained by the minerals. 相似文献
155.
Elbatanony Mahmoud Attiaoui Imed Ali Ibrahim Mohamed Ali Nasser Nahla Tarchoun Monaem 《Environmental science and pollution research international》2021,28(35):48222-48235
Environmental Science and Pollution Research - Despite the importance of remittance inflows as potential source of incomes for recipient households and one of main contributors to the development... 相似文献
156.
Modirzadeh Seyed Alireza Nasseri Mohsen Ahadi Mohammad Sadegh Sangachin Farzam Pourasghar 《Mitigation and Adaptation Strategies for Global Change》2021,26(8):1-25
Mitigation and Adaptation Strategies for Global Change - Cities can be severely affected by climate change. Hence, many of them have started to develop climate adaptation strategies or implement... 相似文献
157.
Ghaffari Sanaz Bakhtiari Alireza Riyahi Ghasempouri Seyed Mahmoud Nasrolahi Ali 《Environmental science and pollution research international》2019,26(25):25712-25724
Environmental Science and Pollution Research - The Caspian Sea is the largest land-locked lake in the world that includes numerous endemic species. Because of its enclosed nature, the pollutants... 相似文献
158.
Maryam Mohammadnia Mahmoud Reza Sohrabi 《Journal of environmental science and health. Part. B》2020,55(4):293-300
AbstractIn the present work, dispersive micro-solid phase extraction (D-μ-SPE) method using magnetic graphene oxide tert-butylamine (GO/Fe3O4/TBA) nanocomposite, as an efficient sorbent, was applied for determining 2,4-dichlorophenoxyacetic acid (2,4-D) in water and food samples. Detection was carried out using high-performance liquid chromatography (HPLC) instrument. Influential parameters of D-μ-SPE such as sorbent and its amount, elution solvent and its volume, adsorption and desorption times and pH of sample solution were investigated and optimized. Under the optimized conditions, limit of detection and quantitation values were 0.007 and 0.02?μg/mL, respectively. Recovery data for several real samples were obtained within the range of 88.0–94.0% with a relative standard deviation (RSD) less than 7.5%. The proposed method was successfully applied to quantitative determination of 2,4-D in several vegetables and water samples. 相似文献
159.
Abbas Akbarzadeh Hasan-Ali Laghai Masuod Monavari Shaban Ali Nezami Seyed Soheil Saeedi Saravi 《毒物与环境化学》2013,95(6):1055-1062
The trophic state of the Anzali wetland was determined by nutrient analysis, indicating an alarming hypertrophic state. The Anzali wetland is environmentally and economically one of the most important ecosystems that is located in north-west Iran. This wetland was registered as a Ramsar site in September 1975, but due to many problems, particularly eutrophication created by excessive amounts of nutrients, it was registered in the Montreux record. This study was conducted for a year on 21 stations in three zones including receiving rivers, surface water and exiting rivers. Geographic information systems were used to better understand the prevailing situation. Analysis was conducted according to international standards and classification of OECD for freshwaters. The indicators used were levels of total nitrogen (TN) and total phosphorous (TP), and the trophic state index (TSI). Data showed an increase of excess nutrients from domestic and agricultural sources, leading to human, cultural eutrophication processes rather than natural eutrophication. 相似文献
160.
Ulmus tree leaves were successfully used as a novel and efficient biosorbent for removing cadmium, (Cd(II)), from aqueous solutions in a batch system. A multivariate strategy for optimization of removal efficiency conditions of Cd(II) was carried out. A 23 full factorial design with three center points (9 runs) was performed for screening the main variables and reducing the large number of experimental runs. Initial concentration of metal ion (C m), amount of sorbent (m), and pH were considered as the three main variables at two different levels. The maximum removal efficiency of Cd(II) was achieved within 1 h contact time. It was found that all the main factors and their interactions were significant at p < 0.05. Doehlert response surface methodology was utilized (13 runs) for finding a suitable mathematical model. The analysis of variance and some statistical tests such as lack-of-fit, coefficient of determination (R 2), and residual distribution plot confirmed the validity of the model. The optimum conditions for maximum removal of Cd(II) by Ulmus tree leaves were found as pH = 3.4, m (amount of sorbent) = 0.128 g, C m (initial concentration of metal ion) = 12.1 mg L?1. 相似文献