Biosorption of As(III) ions from aqueous solution using dry, heat‐treated and NaOH‐treated <i>Aspergillus nidulans</i>

Maheswari, S.; Murugesan, A.

doi:10.1080/09593330.2010.494690

Cited by 13 publications

(2 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some recent decolorization studies carried out on model and industrial dyes have shown the biosorption activity of living and dead biomass of several Ascomycetes and Deuteromycetes, among which some specie belonging to the genus Aspergillus , with A. ochraceus and A. niger among the most effective . To the best of our knowledge, until now A. nidulans was never reported to be able to efficiently decolorize textile dyes, although its properties as biosorbent have already been shown for the removal of very dangerous pollutants from wastewaters, such as endosulfan and arsenic . Thus, overall these data pose the basis for a practical bioprocess of dyeing wastewater decolorization privileging A. nidulans , for its versatile activity on several real very different textile‐dyeing effluents even if used as such.…”

Section: Discussionmentioning

confidence: 99%

Water recycle as a must: decolorization of textile wastewaters by plant‐associated fungi

et al. 2013

View full text Add to dashboard Cite

Textile dye effluents are among the most problematic pollutants because of their toxicity on several organisms and ecosystems. Low cost and ecocompatible bioremediation processes offer a promising alternative to the conventional and aspecific physico-chemical procedures adopted so far. Here, microorganisms resident on three real textile dyeing effluent were isolated, characterized, and tested for their decolorizing performances. Although able to survive on these real textile-dyeing wastewaters, they always showed a very low decolorizing activity. On the contrary, several plant-associated fungi (Bjerkandera adusta, Funalia trogii, Irpex lacteus, Pleurotus ostreatus, Trametes hirsuta, Trichoderma viride, and Aspergillus nidulans) were also assayed and demonstrated to be able both to survive and to decolorize to various extents the three effluents, used as such in liquid cultures. The decolorizing potential of these fungi was demonstrated to be influenced by nutrient availability and pH. Best performances were constantly obtained using B. adusta and A. nidulans, relying on two strongly different mechanisms for their decolorizing activities: degradation for B. adusta and biosorption for A. nidulans. Acute toxicity tests using Daphnia magna showed a substantial reduction in toxicity of the three textile dyeing effluents when treated with B. adusta and A. nidulans, as suggested by mass spectrometric analysis as well.Abbreviations: PDA -potato dextrose agar; LB -Luria Bertani; ARDRA -amplified ribosomal DNA restriction analysis; ITS -internal transcribed spacers; CR -color removal; ESI -electron spray injection; CFU -colony forming unit; DCW -dry cell weight

show abstract

Section: Discussionmentioning

confidence: 99%

Water recycle as a must: decolorization of textile wastewaters by plant‐associated fungi

et al. 2013

View full text Add to dashboard Cite

show abstract

“…The living cells can be inactivated by physical pre-treatment using heat treatment (Maheswari and Murugesan, 2011), autoclaving and vacuum drying (Huang et al, 1988), chemical treatment with acids, alkali, detergents, or organic solvents (Bajwa et al, 2009), or mechanical disruption (Yakubu and Dudeney, 1986). The pre-treatment may enhance or reduce the metal uptake of the biomass dependent on various factors, including: the number of sites in the biosorbent material, the accessibility of the sites, the chemical state of the site, and affinity between site and metal (i.e., binding strength) (Vieira and Volesky, 2000).…”

Section: Biosorbent Materialsmentioning

confidence: 99%

Recovery of Zn2+ and Ni2+ binary from wastewater using integrated biosorption and electro-deposition

Booran¹

2021

Preprint

View full text Add to dashboard Cite

In 2012, the United States environmental protection agency (USEPA) prepared a list of 129 organic and inorganic pollutants found in wastewater that constitute serious health hazards. This list includes the following heavy metals: cadmium, chromium, lead, mercury, nickel and zinc. The effects of bed depths from 0.5 to 2.0 m, liquid flow rates from 0.1 to 0.5 L.min-1, biosorbent particle sizes of 0.5 to 2 inches (1.27 - 5.08 cm) and metal concentrations from 10 to 50 mg-Zn-Ni/L on biosorption service were investigated. The best performance in biosorption of ZN2+ and Ni2+ binary solutions was at the smallest biosorbent particle size (0.5 inch), highest bed depth (2 m), lowest flow rate (0.1 L.min-1) and smallest initial concentration (10 mg/L). For biomass regeneration, the effects of the type of desorbing agents (hydrochloric acid, nitric acid and sulphuric acid), concentrations (0.1 to 0.5 M) and flow rates (0.05 to 0.1 L/min) on recovery of Zn2+ and Ni2+ binary mixture were investigated. The best performance in desorption of Zn2+ and Ni2+ binary solutions were 0.1 M H2S04 and a 0.05 L/min inlet flow rate. Moreover, the reusability of wheat straw was examined by carrying out five successive biosorption/desorption, and the results indicated that wheat straw retained its zinc and nickel adsorption capacity in all five sorption/desorption cycles. Electro-deposition was also used to remove metal ions from concentrated ZN+2 and Ni+2 binary solutions (about 340 ppm) from the desorption step. It was found that the electro-deposition could reduce the metal concentrations down to wastewater discharge limit of 2 mg-Zn-Ni/L. Lastly, economical evaluation showed that the recovery of the heavy metals using Integrated Biosorption and Electro-deposition has great advantages from both technical and economical perspectives over the chemical precipitation technology.

show abstract

The Role of Biosorbents in the Removal of Arsenic from Water

Sahmoune

2016

Chem Eng & Technol

View full text Add to dashboard Cite

Arsenic contamination in water causes many diseases. Therefore, various biosorbent materials have been tested for their ability to remove the two inorganic arsenic species commonly found in water, namely, arsenite As(III) and arsenate As(V). The arsenic biosorption is influenced by the pH value of the aqueous phase, arsenic concentration, presence of competing ions, and arsenic speciation. The biosorption kinetics of As(III) and As(V) has been reported to be rapid, with more than 80 % biosorption occurring during the first hour, followed by a second step which may take up to several hours. The pseudo‐second‐order model provided the best fit, which corresponds to a chemisorption process. The Langmuir model indicated that most arsenic ions are adsorbed in monolayer form and removal is better for As(III) than for As(V).

show abstract

Biosorption of As(III) ions from aqueous solution using dry, heat‐treated and NaOH‐treated Aspergillus nidulans

Cited by 13 publications

References 29 publications

Water recycle as a must: decolorization of textile wastewaters by plant‐associated fungi

Water recycle as a must: decolorization of textile wastewaters by plant‐associated fungi

Recovery of Zn2+ and Ni2+ binary from wastewater using integrated biosorption and electro-deposition

The Role of Biosorbents in the Removal of Arsenic from Water

Contact Info

Product

Resources

About