The current work examined chitosan's adsorption capabilities for removing Cu(II) and Fe(II) ions from the aqueous phase in a batch equilibrium system. The membranes were prepared using the leaching-out method. The effects of the adsorbent's initial pH, concentration, temperature, and dose on adsorption were examined. Adsorption tests were conducted at temperatures ranging from 15 to 45 °C and initial concentration ranges of 20−400 mg/L. The observations from the adsorption isotherms fitted the Langmuir and Freundlich model adequately. The nonlinear form of the pseudo-first-order model was followed by the kinetics of Cu(II) and Fe(II) on chitosan, and the model parameters were reliably obtained. The endothermic and spontaneous character of Cu(II) and Fe(II) adsorption on chitosan adsorbents was verified by the computed negative values of standard Gibbs free energy and positive enthalpy changes. Finally, chitosan (CS) showed to be an efficient adsorbent for the removal of Cu(II) and Fe(II) ions due to its high adsorption capacity for Cu(II), which was 182.15 mg/g for C1, 331.28 mg/g for C2, and 384.31 mg/g for C3, and Fe(II), which was 201.67 mg/g for C1, 352.53 mg/g for C2, and 315.8 mg/g for C3 (where C1 is the CS membrane, C2 is the CS/silica membrane, and C3 is the CS/polyvinylpyrrolidone membrane).
Methodology: 0.8ml of peripheral blood was collected from all the patients and cultured in RPMI 1640 medium for 72h in CO2 incubator. Then cells were harvested with colchicines and after the hypotonic treatment the slides were prepared and stained with giemsa. After that it was observed with high power microscope and reported. RESULT: From the 50 patients, 39 patients were Primary trisomy 21 (47, XX or XY+21), 6 was Mosaic Trisomy 21 (46/47, XX or XY+21), 3 was Down's syndrome Primary amenorrohoea (47, XX, +21) and there was 2 translocation 46, XY, t (14:21) 46, XY, t (21:21). The paternal age at 26-30 years were found more whereas the maternal age at 21-25 years was found more and males were more affected as compare to the females. CONCLUSION: It is tempting to speculate that, the difference in clinical features, growth retardation, abnormal dermatoglyphic patterns etc, are related to the genetic constitution of the Down's syndrome individuals.
Water is one of the most important issues of our time intertwined with global warming and population expansion. The management of water supplies and the conservation of water resources remains one of the most challenging yet exciting issues of our time. These rapidly growing industries spill out a lot of hazardous plastic waste, oil waste, chemicals waste, masonry and concrete, vegetable matter, and many more wastes in the water. It is of major concern that these industries are contaminating throughout the world. Oily sludge obtained as a waste from petroleum or refinery industries contain significant metal ions which thoroughly mix and pollute the water. Metal ions like As, Cr, Co, Cu, Fe, Pb, Ni, Zn, Cd, and Mn are found in oily sludge of refinery industry and may harm plants, animals, and humans due to their long-term preservation and also causes groundwater contamination. These metals are recovered by electrochemical methods, which attempt to target recycling heavy metal resources with minimizing energy consumption, boost recovery efficiency, and realize the commercial application.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.