Biosorption of chromium and nickel by heavy metal resistant fungal and bacterial isolates

Congeevaram, Shankar; Dhanarani, Sridevi; Park, Joonhong; Dexilin, M.; Kaliannan, Thamaraiselvi

doi:10.1016/j.jhazmat.2006.12.017

Cited by 519 publications

(202 citation statements)

References 24 publications

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“…The highest uptake of Cr (0.55 mg/g) by Trichoderma longibrachiatum indicated its efficiency to remove Cr from aqueous solution containing higher concentration of Cr. These results with respect to uptake of Cr by fungi are in agreement with those reported earlier [25][26][27][28].…”

Section: Growth and Uptake Of Cr By Fungal Isolatessupporting

confidence: 93%

Bioremediation of Heavy Metals in Liquid Media Through Fungi Isolated from Contaminated Sources

et al. 2011

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Wastewater particularly from electroplating, paint, leather, metal and tanning industries contain enormous amount of heavy metals. Microorganisms including fungi have been reported to exclude heavy metals from wastewater through bioaccumulation and biosorption at low cost and in eco-friendly way. An attempt was, therefore, made to isolate fungi from sites contaminated with heavy metals for higher tolerance and removal of heavy metals from wastewater. Seventy-six fungal isolates tolerant to heavy metals like Pb, Cd, Cr and Ni were isolated from sewage, sludge and industrial effluents containing heavy metals. Four fungi (Phanerochaete chrysosporium, Aspegillus awamori, Aspergillus flavus, Trichoderma viride) also were included in this study. The majority of the fungal isolates were able to tolerate up to 400 ppm concentration of Pb, Cd, Cr and Ni. The most heavy metal tolerant fungi were studied for removal of heavy metals from liquid media at 50 ppm concentration. Results indicated removal of substantial amount of heavy metals by some of the fungi. With respect to Pb, Cd, Cr and Ni, maximum uptake of 59.67, 16.25, 0.55, and 0.55 mg/g was observed by fungi Pb3 (Aspergillus terreus), Trichoderma viride, Cr8 (Trichoderma longibrachiatum), and isolate Ni27 (A. niger) respectively. This indicated the potential of these fungi as biosorbent for removal of heavy metals from wastewater and industrial effluents containing higher concentration of heavy metals.

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Section: Growth and Uptake Of Cr By Fungal Isolatessupporting

confidence: 93%

Bioremediation of Heavy Metals in Liquid Media Through Fungi Isolated from Contaminated Sources

et al. 2011

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“…The reaction is specific for chromium (VI) and can be applied for estimation of chromium in the μg/L level. Bacterial biomass was quantified taking absorbance at 600 nm using spectrophotometer [13].…”

Section: A Maintenance Of the Bacteria In Laboratorymentioning

confidence: 99%

Removal of Chromium (VI) by Bacillus subtilis Isolated from East Calcutta Wetlands, West Bengal, India

Basu¹,

Dasgupta²,

Chakraborty³

2014

IJBBB

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Abstract-Chromium (VI), one of the major pollutants released from tanneries, dye and textile industries, is highly toxic and carcinogenic in nature. Chemical methods for bulk treatment of industrial effluents often fail to reduce the level to meet the environmental regulations. For end of the pipe treatment, bioremediation is considered a better alternative. East Calcutta Wetlands, the major sewage treatment site of Kolkata (previously known as Calcutta), has been reported to be contaminated with several heavy metals including chromium (VI). Therefore, there is a possibility that bacterial population of this region can tolerate chromium (VI) and would be useful for bioremediation of chromium (VI). A strain of Bacillus subtilis isolated from this region was grown in presence of chromium (VI) (2.5 g/L-7.5 5 g/L). There were 97% and 90% reduction of residual chromium concentration in growth media after 24 hours with initial concentrations of 2.5 g/L and 5 g/L respectively. Best removal was observed at 30C. Growth of the Bacillus strain in presence of chromium (VI) was found to be best fit for Tessier model by non-linear regression analysis using MATLAB® 7.4. The Bacillus strain has the potential for the end of the pipe treatment removal of chromium (VI).

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“…For temperature optimization, four different temperatures of 25, 30, 35, and 40 °C were used. The pH was set to 5,6,7,8,9, and 10 using 0.1N NaOH and 0.1N HCl (Congeevaram et al, 2007). The carbon sources used were glucose, sucrose, starch, arabinose, maltose, and fructose at 0.2% concentration.…”

Section: Optimization Of Temperature Ph Carbon and Nitrogen Sourcesmentioning

confidence: 99%

Removal of chromium by Staphylococcus saprophyticus subsp. bovis strain 1

Iyengar¹,

Usha²

2016

biologija

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The present study was taken up to carry out the removal of chromium by bacteria. Chromium is a heavy metal which is of concern as it causes chromium toxicity in both plants and animals. The tanneries are a major source of chromium release into the water bodies, and hence this study is aimed at identifying the potential chromium-tolerant bacterium and at studying the bacterium for its maximum tolerance and chromium removal capacity. A total of 20 samples each of soil and industrial effluents were collected from the Peenya industrial area, Bangalore, India. The bacterial isolates were screened for chromium resistance by supplementing the nutrient media with 300 µg/ml of chromium. The growth of the bacteria was measured in terms of O.D. at 670 nm. The isolates were further screened by increasing the concentration of chromium from 300 to 3000 µg/ml. The isolate S105c which showed better resistance to chromium compared to other isolates was identified as Staphylococcus saprophyticus subsp. bovis strain 1 based on 16S rRNA sequencing. Optimization of temperature, pH, carbon sources, and nitrogen sources was carried out for the removal of chromium by S. saprophyticus subsp. bovis strain 1. Atomic absorption spectrophotometric analysis was carried out for the removal of chromium by S. saprophyticus subsp. bovis strain 1 in the mineral salts medium supplemented with 300 µg/ml of chromium. Out of 40 soil and industrial effluent samples collected, a total of 51 isolates were obtained. Out of 51 isolates, 7 isolates gave the highest O.D. values in the presence of 300 µg/ml of chromium. The isolate S10-5c showed maximum tolerance up to 3000 µg/ml of chromium. S. saprophyticus subsp. bovis strain 1 was able to remove 2% of chromium in the medium at the end of 24 hours under optimized conditions. It can be concluded that the organism Staphylococcus saprophyticus subsp. bovis strain 1 can be used for the removal of chromium from industrial effluents.

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Biosorption of chromium and nickel by heavy metal resistant fungal and bacterial isolates

Cited by 519 publications

References 24 publications

Bioremediation of Heavy Metals in Liquid Media Through Fungi Isolated from Contaminated Sources

Bioremediation of Heavy Metals in Liquid Media Through Fungi Isolated from Contaminated Sources

Removal of Chromium (VI) by Bacillus subtilis Isolated from East Calcutta Wetlands, West Bengal, India

Removal of chromium by Staphylococcus saprophyticus subsp. bovis strain 1

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