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Biodecolourisation of Bismarck Brown dye using Orange peel

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Title Biodecolourisation of Bismarck Brown dye using Orange peel
 
Creator Paul, J John
Surendran, A
Thatheyus, A Joseph
 
Subject Biosorption
Biosorbents
Industrial effluents
Pollution
Textile industry
 
Description 564-569
Dyes discharged from dyeing units and textile industries pollute the environment, particularly aquatic systems and
cause considerable damage to organisms. Removal of colour is a prerequisite for discharge of treated textile effluents into
the environment. Though several physical and chemical methods are available for decolourisation, biosorption is considered
as cost effective and ecofriendly technique. Hence, in the present study, we explored possibilities of using orange peel for
decolourisation of Bismarck brown dye, one of most common dyes used in the textile industry. Orange peel in different
quantities (0.2, 0.4, 0.6 and 0.8 g/100 mL) was tested with 0, 100, 200, 300 and 400 ppm concentrations of Bismarck Brown
dye for ten days. The decolourisation activity proportionally increased with the increase in the treatment period. The dye
concentration of 100 ppm was tested with 0.4 g orange peel in different pH ranges of 2, 4, 6, 8 and 10 and the absorption
was high in acidic pH. The increase in contact time also resulted in increased dye removal. Over all, the adsorption of dye
onto orange peels was influenced by initial dye concentration, pH, amount of adsorbent and contact time. Four grams of
orange peel showed highest decolourisation after 200 min, and it was proportional to the contact time. The dye removal was
the maximum at pH 2. Both Langmuir (R2 = 0.922) and Freundlich (R2 = 0.999) adsorption isotherms were calculated.
 
Date 2021-08-31T10:55:17Z
2021-08-31T10:55:17Z
2021-08
 
Type Article
 
Identifier 0975-1009 (Online); 0019-5189 (Print)
http://nopr.niscair.res.in/handle/123456789/57961
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJEB Vol.59(08) [August 2021]