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Ali Almasi Mehdi Omidi Mehdi Khodadadian Razieh Khamutian Mohammad Bagher Gholivand 《毒物与环境化学》2013,95(4):660-671
The biosorption potential of processed walnut shell for Pb(II) and Cd(II) ions from aqueous solutions was explored. The effects of pH, contact time, initial ion concentration, and amount of dried adsorbent were studied in batch experiments. The maximum adsorption was achieved within the pH range 4.0–6.0. The equilibrium data were well fitted by the Langmuir isotherm model. The maximum monolayer adsorption capacities were found to be 32?g?kg?1 and 11.6?g?kg?1 for Pb(II) and Cd(II) ions, respectively. Kinetic data were best described by the pseudo-second-order model. The structural features of the adsorbent were characterized by Fourier transform infrared spectroscopy, which confirmed the involvement of hydroxyl (–OH), carboxyl (–COO–), and carbonyl (C=O) groups in metal sorption. This readily available adsorbent is efficient in the uptake of Pb(II) and Cd(II) ions from an aqueous solution and could be used for the treatment of wastewater streams bearing these metal ions. 相似文献
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Razieh Khanaki Mohd Amran Mohd Radzi Mohammad Hamiruce Marhaban 《International Journal of Green Energy》2016,13(3):283-291
This article presents a two-stage maximum power point tracking (MPPT) controller using artificial neural network (ANN) for photovoltaic (PV) standalone system, under varying weather conditions of solar irradiation and module temperature. At the first-stage, the ANN algorithm locates the maximum power point (MPP) associated to solar irradiation and module temperature. Then, a simple controller at the second-step, by changing the duty cycle of a DC–DC boost converter, tracks the MPP. In this method, in addition to experimental data collection for training the ANN, a circuit is designed in MATLAB-Simulink to acquire data for whole ranges of weather condition. The whole system is simulated in Simulink. Simulation results show small transient response time, and low power oscillation in steady-state. Furthermore, dynamic response verifies that this method is very fast and precise at tracking the MPP under rapidly changing irradiation, and has very low power oscillation under slowly changing irradiation. Experimental results are provided to verify the simulation results as well. 相似文献
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Baharfar Robabeh Azimi Razieh Asdollahpour Zeinab 《Environmental Chemistry Letters》2018,16(2):677-682
Environmental Chemistry Letters - The combination of two or more different heterocyclic moieties in a single molecule would enhance biological activity significantly. The indole and furan scaffolds... 相似文献
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Ravanipour Masoumeh Bagherzadeh Razieh Mahvi Amir Hossein 《Journal of Material Cycles and Waste Management》2021,23(4):1394-1403
Journal of Material Cycles and Waste Management - The aim of this study was to investigate the estimation and management of fish and shrimp wastes in Bushehr province. Two-part questionnaire... 相似文献
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Tiwari Ananda Phan Nati Tandukar Sarmila Ashoori Razieh Thakali Ocean Mousazadesh Milad Dehghani Mohammad Hadi Sherchan Samendra P. 《Environmental science and pollution research international》2022,29(57):85658-85668
Environmental Science and Pollution Research - As the world continues to cope with the COVID-19 pandemic, emerging evidence indicates that respiratory transmission may not the only pathway in which... 相似文献
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