Biosorption is a suitable heavy metal remediation technique for the treatment of aqueous effluents large volume and low pollutant concentration. However, today industrial applications need selection efficient low‐cost biosorbents. The aim this work to investigate brown alga such as Fucus serratus (FS) biosorbent, fixation metallic ions, namely Cu2+, Zn2+, Pb2+, Ni2+, Cd2+ Ce3+, in batch reactor. kinetics isotherms have been performed at pH 5.5. For all studied equilibrium time about 450 min...

The present study evaluated the antioxidant and antibacterial activities of methanolic extract medlar (Mespilus germanica L.) leaves. activity was determined by 2,2-diphenyl-1-picrylhydrazyl radical assay disc diffusion method determination minimum inhibitory concentration. showed high (69.43%) had against both Gram positive negative bacteria. Higher inhibition zone detected S. aureus (30.83 mm). this plant phenolic, flavonoids carotenoids contents it can be concluded that these compounds...

Abstract In this present study, biosorption of Zn(II) from aqueous solution by cyanobacterium Fischerella ambigua was investigated in batch experiments. The effects pH, bacterial dosage, initial concentration, contact time and temperature were studied. Removal process influenced significantly the variation biosorbent ion time. Optimum conditions found to be pH 5, dosage 0.2 g/l concentration 175 mg/l at room 90 min. maximum uptake capacity F. for ions 98.03 mg/g optimum conditions. correlation...

In this present study, biosorption of Zn (II) from aqueous solutions by living bacteria Pseudomonas aeruginosa was investigated in batch experiments. The effects pH, bacterial dosage, initial concentration, contact time, and temperature were studied. Removal process influenced significantly the variation biosorbent ion temperature, time. Optimum conditions found to be pH 6, dosage 0.5 g/l, concentration 100 mg/l at room time 90 min. maximum uptake capacity P. for ions 46.1 mg/g optimum...

The antioxidant and antibacterial activities of six edible plants were evaluated. active constituents the extracted using boiling water or 80% methanol. Results demonstrated that extraction antioxidants by was more efficient. Lycium depressum Berula angustifolia had highest and, therefore, could be rich sources natural antioxidants. extracts tested against Staphylococcus aureus, Escherichia coli, Entrococcus faecalis Proteus mirabilis. Further research is needed to isolate, characterize,...

AbstractA dried Azolla filiculoides (A. filiculoides) biomass was used to remove Cr(VI) from aqueous solution using batch experiments. The influence of pH, algal dosage, initial concentration, contact time, and temperature were studied analyzed response surface methodology (RSM). optimum biosorption conditions determined as pH 2, at 25°C, biosorbent concentration 0.2 g/l 200 mg/l. maximum capacity A. for ions found be mg/g conditions. properties the nature biomass–metal interactions...

This study has been focused on the batch culture removal of Cu2+ and Ni2+ ions from aqueous solution using marine brown algae Sargassum angustifolium. Influences parameters like pH, initial metal concentration biosorbent dosage nickel copper adsorption were also examined Box-Behnken design matrix. For biosorption optimum pH value was determined as 5.0, to 1.0 g/L 0.15 mmol/L. Ni2+, optimal condition same but 6.0. Desorption experiments indicated that CH3COOH EDTA efficient desorbents for...

The biosorption characteristics of Cd(II) and Cs(I) using live dead cells Saccharomyces carlsbergensis PTCC 5051 as biosorbents have been investigated in the present research. influence different experimental parameters such initial pH (pHi), shaking rate, sorption time metal concentration was evaluated. optimum obtained 4 for 7 Cs(I). adsorption data were fitted to Langmuir linear equation model. highest uptake values 0.593 0.473 mmol g−1 calculated Cs(I), respectively. results Fourier...

To assess the potential of Pb+2 accumulation in different parts Acacia victoria, one year old A. victoria seedlings were exposed to Pb2+(NO3)2 5 concentrations: 0, 50, 250, 500 and 1000 (mg Pb2+ L(-1)) for 45 days. Subsequently, uptake was quantified roots, shoots leaves by Atomic Absorption Spectroscopy (AAS). In addition, some physiological parameters such as biomass production, roots length, plant appearance, tissue concentrations chlorophyll content examined. Tissue increased...

In this research the effects of various physicochemical factors on Cd(2+) biosorption such as initial metal concentration, pH and contact exposure time were studied. This study has shown a biosorption, equilibrium about 5 min for Pseudomonas aeruginosa adsorption data well described by Langmuir equation. The maximum capacity been extrapolated to 0.56 mmol.g(-1) P. aeruginosa. thermodynamic properties ΔG(0), ΔH(0), ΔS(0) analyzed constant value obtained from experimented at different...

The capability of Sargassum angustifolium in removing nickel (Ni) (II) and zinc (Zn) from single binary metal solution was determined. In the presence secondary inhibited sorption primary by S. but inhibitory effect Ni during Zn is stronger than absorption Ni. total (Ni + Zn) sorbed cells always remained lower individual metals their respective solutions, thereby suggesting competition between Ni(II) Zn(II) for common binding sites on angustifolium. maximum uptake capacities angustifolium,...

Background: The role of immune system in natural course viral hepatitis has been drawn some attention. One the main diagnostic markers function different diseases might be ratio CD4+ to CD8+ T lymphocytes (CD4+/CD8+ ratio). Objectives: This research aimed measure and compare CD4+/CD8+ patients with chronic B (CHB) control group. Methods: In this cross-sectional study, thirty-three CHB thirty age sex-matched healthy controls were included. Immunophenotyping isolated cells was performed using...