Protonated or Ca-form Sargassum seaweed biomass bound up to 40 mg/g of Cr(III) by ion exchange at pH 4. An ion-exchange model assuming that the only species taken up by the biomass was Cr(OH)2+ successfully fitted the experimental biosorption data for Cr(III). The maximum uptake of Cr(VI) by protonated Sargassum biomass at pH 2 was explained by simultaneous anion exchange and Cr(VI) to Cr(III) ...

Abstract The goal of this study was to look into growth changes and a number metabolic events in Fe 2+ treated Lupinus albus, Triticum aestivum , Vicia faba, Zea mays plants assess the role biosorption by Rhodotorula mucilaginosa YMM19 alleviate these changes. effect concentrations (untreated with biosorbent) on seed germination studied. T. plumule stimulated low dose . However, application red...

Abstract Locally available apricot ( Prunus armeniaca L.) seed shell wastes were utilized for the preparation of an efficient dye biosorbent. The as-prepared powder ASP ) was thoroughly characterized using FTIR, SEM-EDX, XRD, BET surface area, and pH PZC measurements to elucidate its functional groups, as well texture morphology charge. effect several process variables (such contact time, bioso...

We investigated the potential utility of a recombinant E. coli that expresses the human metallothionein II gene as a fusion protein with beta-galactosidase as a heavy metal biosorbent. E. coli cells expressing the metallothionein fusion demonstrated enhanced binding of Cd2+ compared to cells that lack the metallothionein. It was shown that the metallothionein fusion was capable of efficiently r...

In this work, the potential of peach pit biosorption in removal drug metformin hydrochloride from water is evaluated. Experiments are carried out a closed batch system to evaluate effect solution pH (2–10), temperature (25, 35 and 45 °C), stirring (100, 150 200 rpm) chemical treatments. During study, biosorbent characterization, kinetic tests, equilibrium tests thermodynamic parameter calculati...

This study reports the recovery of Pd(II) from acid solution by a polyethylenimine (PEI)-crosslinked chitin (PEI-chitin) biosorbent. FE-SEM analysis demonstrated that there are many slot-like pores on PEI-chitin. The N2 adsorption–desorption experiment revealed average pore size was 47.12 nm. Elemental verified successful crosslinking PEI with raw chitin. Langmuir model better explained isother...

For the past few years, environmental degradation caused by discharge of heavy metals and organic contaminants has been a major source worry. Using natural adsorbent to tackle wastewater problems recently viewed as an environmentally friendly move that promotes sustainable development. Heavy have indeed reduced in aqueous solutions using variety methods, include adsorption surfaces agricultural...