Volume 1 Issue 1
Feb.  2016
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Bi Chen, Long Yan, Xia Liu, Jessica L. Worrall. Poultry keratin based decolorants for dyeing wastewater treatment[J]. Journal of Bioresources and Bioproducts, 2016, 1(1): 30-35. doi: 10.21967/jbb.v1i1.34
Citation: Bi Chen, Long Yan, Xia Liu, Jessica L. Worrall. Poultry keratin based decolorants for dyeing wastewater treatment[J]. Journal of Bioresources and Bioproducts, 2016, 1(1): 30-35. doi: 10.21967/jbb.v1i1.34

Poultry keratin based decolorants for dyeing wastewater treatment

doi: 10.21967/jbb.v1i1.34
Funds:

The authors gratefully acknowledge the financial support from Science Foundation of Department of Shaanxi Province (2014K10-25). We are also full of gratitude for the support provided by the Produce-learn-research project of Yu Lin (2015CXY14-04). And thanks Ju Chen from Polytechinique Montreal for her generous help.

  • One of the challenges in wastewater treatment is the low efficiency in decoloring dyeing wastewater. Chicken feather, as a waste material, has a great potential in decoloring the dyeing wastewater. In this study, a lab synthesized dyeing wastewater prepared with acid blue-A dye was treated with a chicken feather keratin-based composite decolorant KA (keratin agent) using batch decoloration techniques. A modified KA (MKA) was also developed to improve the decoloration efficiency. The decoloration performance of the two decolorants was then evaluated in terms of decoloring rate, at various decolorant dosages, pH, reaction temperature and time. Under optimal conditions, the decoloration rates of the KA and MKA in treating the dyeing wastewater were 91.8% and 94.3%, respectively. IR and TEM results indicated that the KA and MKA decolorants removed the dye stuff from the dyeing wastewater by physical adsorption as well as chemical reactions.

     

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