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首页> 外文期刊>Bioprocess and Biosystems Engineering >Removal of pigments from molasses wastewater by combining micro-electrolysis with biological treatment method
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Removal of pigments from molasses wastewater by combining micro-electrolysis with biological treatment method

机译：微电解与生物处理相结合去除糖蜜废水中的色素

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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.
机译：糖蜜废水（MWW）废水中的色素（例如黑素）被认为是对环境最具危害性和危害性的着色剂。在这项研究中，通过微电解与生物处理的协同结合使MWW脱色。为了获得较高的脱色收率，相应地优化了营养源供应水平，MWW稀释比和微电解反应时间。对于稀释的（50％，v / v）MWW，通过生物电解处理可实现最大的总脱色率（97.1 +/- 0.5％，对于475 nm的吸光度）。在电解生物处理中，真菌生物量的促进生长以及木质素分解酶的活性也揭示了微电解的积极作用。木质素过氧化物酶，锰过氧化物酶和漆酶的活性分别提高了111.2、103.9和7.7％。该研究还暗示生物处理和微电解在去除具有不同极性的颜料方面具有不同的效率。

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