Experimental and Isothermal Studies on Sorption of Congo Red by Modified Mycelial Biomass of Wood‐rotting Fungus

Binupriya, Arthur Raj; Sathishkumar, M.; Kavitha, D.; Swaminathan, K.; Yun, Soon‐Il; Mun, Sung Phil

doi:10.1002/clen.200700025

Cited by 37 publications

(20 citation statements)

References 30 publications

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“…This indicates the possible involvement of chemisorption mechanism in PR adsorption. Similar results have been observed by Binupriya et al [30]. Desorption was also studied under four different media such as water, NaOH, ethanol and acetone.…”

Section: Desorptionsupporting

confidence: 84%

Biosorption of Procion Red MX 5B by Bacillus subtilis and Its Extracellular Polysaccharide: Effect of Immobilization

Binupriya

Sathishkumar

et al. 2010

CLEAN Soil Air Water

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Research Article Biosorption of Procion Red MX 5B by Bacillus subtilis and Its Extracellular Polysaccharide: Effect of ImmobilizationBacillus subtilis and its extracellular polysaccharide (EPS) were used in free form as well as immobilized form as biosorbent for the removal of an anionic dye Procion Red MX 5B. Low pH was favourable for biosorption. Immobilization resulted in reduced biosorption of the dye. The presence of functional groups responsible for the high adsorption capacity in free cells (FC) and EPS was confirmed by FTIR analysis. High Q max and b values were noted in the case of FC and free EPS in contrast to immobilized cells and EPS. The kinetics data showed that the adsorption system followed pseudo-first-order reaction at low dye concentration. Desorption of the dye was found to be 100% in 1 N NaOH. In the case of immobilized biomass and EPS the alginate was found to be unstable under high alkaline conditions of NaOH. IntroductionTextiles industries consume large amounts of water, particularly for bleaching and dyeing purposes. Textile industries contribute considerable amount of effluent of varying characteristics such as color, dissolved solids and various organic and inorganic substances. Treatment of the textile effluent normally involves neutralization, coagulation followed by biological treatment. This treatment involves large amount of acid, coagulants and energy. Attempts have been made to substitute microorganisms for chemicals. While most textile dyes have low aquatic toxicity, the discharge of highly colored untreated or partially treated textile mill effluents can impair the aesthetic value of receiving waters while also affecting water transparency and gas solubility, which may in turn negatively affect aquatic biota. The majority of technologies presently employed for color removal are based on physicochemical processes such as dilution, adsorption, coagulation and flocculation, chemical precipitation, oxidation, ion-exchange, reverse osmosis and ultra filtration [1]. Although adsorption on to activated carbon gained prominence as a treatment technology, its high cost and associated problems of regeneration have led to the constant search for alternate efficient low cost adsorbents [2]. Apart from agricultural and industrial wastes that have formed the bulk of low cost adsorbents, microbial adsorbents also form a major group of biosorbents which are being studied for their application in dye and metal removal technologies. Dye adsorption studies using microorganisms has been carried out by many researchers [3]. Several researchers have worked on microbial adsorbents such as Corynebacterium glutamicum [4], Trametes versicolor [5], Penicillium chrysogenum [6], Rhizopus arrhizus [7]and Aspergillus fumigatus [8] for dye adsorption. Very minimal works have been done with bacteria and their exopolysaccharides with regard to metal removal but not on dye removal [9]. EPS are heterogeneous mixture composed mainly of polysaccharides and proteins, with nucleic acids and lipids as minor constit...

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Section: Desorptionsupporting

confidence: 84%

Biosorption of Procion Red MX 5B by Bacillus subtilis and Its Extracellular Polysaccharide: Effect of Immobilization

Binupriya

Sathishkumar

et al. 2010

CLEAN Soil Air Water

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“…Cations such as Na and K from the carbon may attract the anionic PR molecules by electrostatic attraction. Many adsorbents such as fungal biomass [25], bacterial biomass [2], chitosan [26] and activated carbon [26] have been reported to uptake anionic dyes. The chloride (Cl -) ion on the benzene ring, which increases the acidic character is responsible for the formation of an anion on the oxygen atom of the -OH group and also has a strong affinity for carbon surfaces.…”

Section: Effect Of Ph On Pr Adsorptionmentioning

confidence: 99%

Bokbunja Wine Industry Waste as Precursor Material for Carbonization and Its Utilization for the Removal of Procion Red MX‐5B from Aqueous Solutions

Binupriya

Sathishkumar

Jung

et al. 2008

CLEAN Soil Air Water

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Bokbunja (wild raspberry) seed waste from the Bokbunja wine industry is a serious environmental problem due to the increasing popularity of Bokbunja wines in recent years. In the present study, Bokbunja seeds were carbonized and used as an adsorbent for the removal of Procion Red MX-5B. A batch of carbon was further treated with nhexane to remove excess seed oil and used separately as an adsorbent for comparison. There was a slight variation in the adsorption capacities of n-hexane untreated (HUTC) and n-hexane treated carbon (HTC). The adsorption capacities predicted by the Langmuir isotherm were 29.37 and 30.65 mg/g for HUTC and HTC, respectively. The adsorption was found to be dependant on initial pH, contact time and initial dye concentration. The dye removal rates were higher at pH 2, while equilibrium time was achieved at 120 min. Kinetic studies showed a pseudo-first-order rate of adsorption. The results show that Bokbunja carbon could be used as a potential adsorbent for dye removal from wastewaters.

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“…After a 3-d incubation, the biosorption percentages by live P. chrysosporium were 19.71% and 52.21% for Phen and Pyr, respectively, which are significantly lower than that of dead fungal biomass. This is mainly attributed to the change in P. chrysosporium cell permeability under the high-pressure inactivation treatment [34]. With the increase of the incubation time (340 d), biodegradation percentages gradually increased from 20.40% to 60.62% for Phen and from 15.55% to 49.21% for Pyr, and the stored-PAHs in the fungal bodies gradually decreased by 5.89% for Phen and by 15.18% for Pyr at 40-d, which suggested that PAHs both in solution and fungal body can be biodegraded.…”

Section: Biosorption and Biodegradation Of Phen And Pyr By Fungi P Cmentioning

confidence: 99%

Biosorption and biodegradation of polycyclic aromatic hydrocarbons by Phanerochaete chrysosporium in aqueous solution

2012

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Biosorption and biodegradation of phenanthrene and pyrene by live and heat-killed Phanerochaete chrysosporium are investigated to elucidate the bio-dissipation mechanisms of polycyclic aromatic hydrocarbons (PAHs) in aqueous solution and its regulating factors. The effects of nutrient conditions (carbon source and nitrogen source concentrations), the co-existing Cu 2+ , and repeated-batch feed of PAHs on the biosorption and biodegradation are systematically studied. The removal of PAHs by dead bodies of P. chrysosporium is attributed to biosorption only, and the respective partition coefficients of phenanthrene and pyrene are 4040 and 17500 L/kg. Both biosorption and biodegradation contribute to the dissipation of PAHs by live P. chrysosporium in water. After a 3-d incubation, the removal percentage via biosorption are 19.71% and 52.21% for phenanthrene and pyrene, respectively. With the increase of the incubation time (340 d), biodegradation gradually increases from 20.40% to 60.62% for phenanthrene, and from 15.55% to 49.21% for pyrene. Correspondingly, the stored-PAHs in the fungal bodies decrease. Under the carbon-rich and nitrogen-limit nutrient conditions, the removal efficiency and biodegradation of phenanthrene and pyrene are significantly promoted, i.e. 99.55% and 92.77% for phenanthrene, and 99.47% and 83.97% for pyrene after a 60-d incubation. This phenomenon is ascribed to enhanced-biosorption due to the increase of fungal biomass under carbon-rich condition, and to stimulated-biodegradation under nitrogen-limit condition. For the repeated-batch feed of phenanthrene, the pollutant is continuously removed by live P. chrysosporium, and the contribution of biodegradation is enhanced with the repeated cycles. After 3 cycles, the biodegradation percentage is up to 90% with each cycle of a 6-d incubation.biosorption, biodegradation, Phanerochaete chrysosporium, polycyclic aromatic hydrocarbons, bioremediation Citation:Ding J, Chen B L, Zhu L Z. Biosorption and biodegradation of polycyclic aromatic hydrocarbons by Phanerochaete chrysosporium in aqueous solution.

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Experimental and Isothermal Studies on Sorption of Congo Red by Modified Mycelial Biomass of Wood‐rotting Fungus

Cited by 37 publications

References 30 publications

Biosorption of Procion Red MX 5B by Bacillus subtilis and Its Extracellular Polysaccharide: Effect of Immobilization

Biosorption of Procion Red MX 5B by Bacillus subtilis and Its Extracellular Polysaccharide: Effect of Immobilization

Bokbunja Wine Industry Waste as Precursor Material for Carbonization and Its Utilization for the Removal of Procion Red MX‐5B from Aqueous Solutions

Biosorption and biodegradation of polycyclic aromatic hydrocarbons by Phanerochaete chrysosporium in aqueous solution

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