Heavy metal removal in a biosorption column by immobilized M. rouxii biomass

Yang, Guangyu; Viraraghavan, T.

doi:10.1016/s0960-8524(01)00020-7

Cited by 380 publications

(163 citation statements)

References 10 publications

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“…The commonly used procedures for removing metal ions from effluents include chemical precipitation, lime coagulation, ion exchange, reverse osmosis and solvent extraction (Juang and Shiau, 2000;Yan and Viraraghavan, 2001). These techniques apart from being economically expensive have disadvantages like incomplete metal removal, high reagent and energy requirements, and generation of toxic sludge or other waste products that require disposal.…”

Section: * Corresponding Authormentioning

confidence: 99%

Biosorption of chromium (VI) from aqueous solutions by the husk of Bengal gram (Cicer arientinum)

Ahalya¹,

Kanamadi²,

Ramachandra³

2005

Electron. J. Biotechnol.

264

185

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The potential to remove Cr (VI) from aqueous solutions through biosorption using the husk of Bengal gram (Cicer arientinum), was investigated in batch experiments. The results showed removal of 99.9% of chromium in the 10 mgl -1 chromium solution, the biomass required at saturation was 1 g mg -1 . Kinetic experiments revealed that the dilute chromium solutions reached equilibrium within 180 min. The biosorptive capacity of the (bgh) was dependent on the pH of the chromium solution, with pH 2 being optimal. The adsorption data fit well with the Langmuir and Freundlich isotherm models. The adsorption capacity calculated from the Langmuir isotherm was 91.64 mg Cr (VI)/g at pH 2. The adsorption capacity increased with increase in agitation speed and an optimum was achieved at 120 rpm. The biosorption of Cr (VI) was studied by Fourier transform infrared spectroscopy (FTIR), which suggested that the presence of Cr (VI) ions in the biomass affects the bands corresponding to hydroxyl and carboxyl groups. Comprehensive characterisation of parameters indicates bgh to be an excellent material for biosorption of Cr (VI) to treat wastewaters containing low concentration of the metal.The discharge of heavy metals into aquatic ecosystems has become a matter of concern over the last few decades. The pollutants of serious concern include lead, chromium, mercury, uranium, selenium, zinc, arsenic, cadmium, gold, silver, copper, nickel, etc. due to pollutants' carcinogenic and mutagenic nature. These toxic materials may be derived from mining operations, refining ores, sludge disposal, fly ash from incinerators, the processing of radioactive materials, metal plating, or the manufacture of electrical equipment, paints, alloys, batteries, pesticides or preservatives.The commonly used procedures for removing metal ions from effluents include chemical precipitation, lime coagulation, ion exchange, reverse osmosis and solvent

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Section: * Corresponding Authormentioning

confidence: 99%

Biosorption of chromium (VI) from aqueous solutions by the husk of Bengal gram (Cicer arientinum)

Ahalya¹,

Kanamadi²,

Ramachandra³

2005

Electron. J. Biotechnol.

264

185

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“…The release of large quantities of HMs into the natural environment e.g. irrigation of agricultural fields by using sewage has resulted in a number of environmental problems [4][5][6] and due to their non-biodegradability and persistence, can accumulate in the environment elements such as food chain, and thus may pose a significant danger to human health [7,8]. Many physico-chemical methods have been proposed for their removal from industrial effluents [9].…”

Section: Introductionmentioning

confidence: 99%

Teawaste as An Adsorbent for Heavy Metal Removal from Industrial Wastewaters

Mahvi¹,

Naghipour²,

Vaezi³

et al. 2005

American J. of Applied Sciences

128

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Water used in industries creates a wastewater that has a potential hazard for our environment because of introducing various contaminants such as heavy metals into soil and water resources. In this study, removal of cadmium, lead and nickel from industrial wastewaters has been investigated by using teawaste as a natural adsorbent. The research is a bench scale experimental type and analyses have performed by using different amounts of adsorbent in solutions with 5 different concentrations of each metal and also in a mixed combination. Besides, the effect of various amounts of teawaste used in adsorption efficiency experiments has been investigated. Results indicate that the removal efficiency is highest for lead and is minimum for cadmium. About 94 and 100% lead removal were achieved by using 0.5 and 1.5g adsorbent for solutions having concentrations of 5 and 10 mg/L Pb. Whereas, 1.5g teawaste can treat nickel solution of 5 mg/L concentration with an efficiency of not more that 85.7%. For cadmium, the efficiency was only 77.2% in the same conditions. On the other hand, for mixtures of metals and by applying 0.5 g teawaste, we considered a 3.5% decrease in lead removal efficiency and a 13.2% decrease in nickel adsorption for a mixed solution of 5 mg/L.

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“…Science Publications AJES biosorption (Hu and Reeves, 1997;Prakasham et al, 1999;Yan and Viraraghavan, 2001;Khoo and Ting, 2001;Beolchini et al, 2003;Bai and Abraham, 2003). Important immobilization matrices used in biosorbent immobilization include sodium alginate (Bai and Abraham, 2003;Xiangliang et al, 2005), polysulfone Beolchini et al, 2003), polyacrylamide (Bai and Abraham, 2003) and polyurethane (Hu and Reeves, 1997).…”

Section: Compared To Metalmentioning

confidence: 99%

BIOSORPTION OF TEXTILE DYE USING IMMOBILIZED BACTERIAL (<i>PSEUDOMONAS AERUGINOSA<i/>) AND FUNGAL (<i>PHANEROCHATE CHRYSOSPORIUM<i/>) CELLS

Saravanan¹

2013

American Journal of Environmental Sciences

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Wastewater containing dyes presents a serious problem due to its high toxicity which leads to creating enormous environmental pollution and ecological hazards. Therefore the removal of the high stable dyes from the textile effluents is of major importance. The purpose of this study is to remove the reactive dye Procion Blue 2G from textile dye solution by biosorption process using immobilized cells of Pseudomonas aeruginosa and Phanerochate chrysosporium. It was found that maximum dye uptake is 1.648 mg g −1 of bead for P. aeruginosa and it is 1.242 mg g −1 of bead for P. chrysosporium. Both the results are derived from higher initial dye concentration (100 mg L −1 ) and high cell concentration (in terms of volume of inoculum 20 mL) and at low mass of biosorbent (5 g of bead). Comparatively better results are produced by the beads having the cells of P. aeruginosa than P. chrysosporium. Further, due to the cell immobilization, both the cell beads can be utilized repeatedly in continuous reactors by selecting suitable eluent in industrial scale with the advantage of avoiding wash out of cells.

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Heavy metal removal in a biosorption column by immobilized M. rouxii biomass

Cited by 380 publications

References 10 publications

Biosorption of chromium (VI) from aqueous solutions by the husk of Bengal gram (Cicer arientinum)

Biosorption of chromium (VI) from aqueous solutions by the husk of Bengal gram (Cicer arientinum)

Teawaste as An Adsorbent for Heavy Metal Removal from Industrial Wastewaters

BIOSORPTION OF TEXTILE DYE USING IMMOBILIZED BACTERIAL (<i>PSEUDOMONAS AERUGINOSA<i/>) AND FUNGAL (<i>PHANEROCHATE CHRYSOSPORIUM<i/>) CELLS

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