Removal of pigments from molasses wastewater by combining micro-electrolysis with biological treatment method
In: Bioprocess and Biosystems Engineering, Jg. 39 (2016-08-08), S. 1867-1875
Online
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Zugriff:
Pigments in molasses wastewater (MWW) effluent, such as melanoidins, were considered as kinds of the most recalcitrant and hazardous colorant contaminants to the environment. In this study, de-coloring the MWW by a synergistic combination of micro-electrolysis with bio-treatment was performed. Aiming to a high de-colorization yield, levels of nutrition source supplies, MWW dilution ratio, and micro-electrolysis reaction time were optimized accordingly. For a diluted (50 %, v/v) MWW, an maximum overall de-colorization yield (97.1 ± 0.5 %, for absorbance at 475 nm) was achieved through the bio-electrolysis treatment. In electrolysis bio-treatment, the positive effect of micro-electrolysis was also revealed by a promoted growth of fungal biomass as well as activities of ligninolytic enzymes. Activities of lignin peroxidase, manganese peroxidase, and laccase were promoted by 111.2, 103.9, and 7.7 %, respectively. This study also implied that the bio-treatment and the micro-electrolysis had different efficiencies on removal of pigments with distinct polarities.
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Removal of pigments from molasses wastewater by combining micro-electrolysis with biological treatment method
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Autor/in / Beteiligte Person: | Chen, Ben ; Tian, Xiaofei ; Yu, Lian ; Wu, Zhenqiang |
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Zeitschrift: | Bioprocess and Biosystems Engineering, Jg. 39 (2016-08-08), S. 1867-1875 |
Veröffentlichung: | Springer Science and Business Media LLC, 2016 |
Medientyp: | unknown |
ISSN: | 1615-7605 (print) ; 1615-7591 (print) |
DOI: | 10.1007/s00449-016-1661-2 |
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