Enhanced and selective adsorption of Pb2+ and Cu2+ by EDTAD-modified biomass of baker’s yeast

Yu, Junxia; Tong, Mi; Sun, Xin; Li, Buhai

doi:10.1016/j.biortech.2007.04.038

Cited by 108 publications

(52 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Chelating agents, for instance ethylenediaminetetraacetic acid (EDTA), are widely used as extractive reagents for heavy metals decontamination (Martinez et al, 2006;Ngah and Hanafiah, 2008). Due to its strong metal chelating ability and low cost, EDTA has been used to functionalize a variety of materials from inorganic oxides to biomass, including silica gel (Repo et al, 2009), chitosan (Repo et al, 2010), polyamine composites (Hughes and Rosenherg, 2007), polystyrene (Wang et al, 2010), mercerized cellulose and sugarcane bagasse (Jú nior et al, 2009), wood sawdust and sugarcane bagasse (Pereira et al, 2010), rice husk (Xiong et al, 2010), and baker's yeast biomass (Yu et al, 2008). However, a comparison of results shows that the adsorption efficiency was significantly influenced by the type of supporting material (Repo et al, 2011), and post-treatment separation needs to be taken into consideration.…”

Section: Introductionmentioning

confidence: 99%

EDTA functionalized magnetic nanoparticle sorbents for cadmium and lead contaminated water treatment

2015

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

EDTA functionalized magnetic nanoparticle sorbents for cadmium and lead contaminated water treatment

2015

View full text Add to dashboard Cite

“…The peak about1648.24 cm -1 indicates the presence of C=O stretching and the peak around 1561.44 cm -1 shows the deformation vibration of -NH2. 35 The peak present at 1415.81 cm -1 indicates the presence of C-H bending vibration. The peak at 1082.11 cm -1 shows the presence of Si-O stretching vibration.…”

Section: Ftir Analysismentioning

confidence: 99%

Preparation and Characterization of Alumina and Silica Modified Chitosan

2017

RJC

View full text Add to dashboard Cite

In this present work, the modified chitosan composite is prepared by using Alumina and Silica. The prepared composites are characterized by SEM, EDAX, XRD and FTIR techniques. The physiochemical characteristics such as Carbon Yield (%), Moisture content, pH, Acidity and Basicity, Zero point charge, Boehm's titration, Iodine number are also carried out. The yield and iodine number of chitosan modified silica 91.6% and 2743.555mg/g is higher than the chitosan modified alumina 85.2% and 2121.457mg/g. The prepared composites are used as remarkable adsorbents in the treatment of wastewater due to its biodegradable and non-toxic nature.

show abstract

“…3). With this aim, different eluants have been tested such as diluted inorganic and organic acids, bases and chelating agents (Strandberg et al 1981;Duncan 1995, 1996;Ferraz et al 2004;Padmavathy 2008;Yu et al 2008;Kordialik-Bogacka 2011). Nevertheless, some practical difficul-ties have been observed, which compromise, strongly, the feasi-bility of the desorption process: (a) the deterioration of the yeast cells particularly when concentrated acids or prolonged exposure times were used; (b) the reduction of metal uptake through the successive biosorption/desorption cycles; and (c) the lower metal concentration capacity (Strandberg et al 1981;Ferraz et al 2004;Kordialik-Bogacka 2011).…”

Section: Metals Selective Recoverymentioning

confidence: 99%

Cleanup of industrial effluents containing heavy metals: a new opportunity of valorising the biomass produced by brewing industry

Soares

2013

Appl Microbiol Biotechnol

View full text Add to dashboard Cite

Heavy metal pollution is a matter of concern in industrialised countries. Contrary to organic pollutants, heavy metals are not metabolically degraded. This fact has two main consequences: its bioremediation requires another strategy and heavy metals can be indefinitely recycled. Yeast cells of Saccharomyces cerevisiae are produced at high amounts as a by-product of brewing industry constituting a cheap raw ma-terial. In the present work, the possibility of valorising this type of biomass in the bioremediation of real industrial efflu-ents containing heavy metals is reviewed. Given the auto-aggregation capacity (flocculation) of brewing yeast cells, a fast and off-cost yeast separation is achieved after the treat-ment of metal-laden effluent, which reduces the costs associ-ated with the process. This is a critical issue when we are looking for an effective, eco-friendly, and low-cost technolo-gy. The possibility of the bioremediation of industrial effluents linked with the selective recovery of metals, in a strategy of simultaneous minimisation of environmental hazard of indus-trial wastes with financial benefits from reselling or recycling the metals, is discussed.

show abstract

Enhanced and selective adsorption of Pb2+ and Cu2+ by EDTAD-modified biomass of baker’s yeast

Cited by 108 publications

References 22 publications

EDTA functionalized magnetic nanoparticle sorbents for cadmium and lead contaminated water treatment

EDTA functionalized magnetic nanoparticle sorbents for cadmium and lead contaminated water treatment

Preparation and Characterization of Alumina and Silica Modified Chitosan

Cleanup of industrial effluents containing heavy metals: a new opportunity of valorising the biomass produced by brewing industry

Contact Info

Product

Resources

About