| 引用本文: | 彭晶,郭宇琦,崔丹,王爱杰.升流微生物催化电解反应器强化偶氮染料脱色[J].哈尔滨工业大学学报,2013,45(4):53.DOI:10.11918/j.issn.0367-6234.2013.04.010 |
| PENG Jing,GUO Yuqi,CUI Dan,WANG Aijie.Azo dye decolorization in an up-flow biocatalyzed electrolysis reactor[J].Journal of Harbin Institute of Technology,2013,45(4):53.DOI:10.11918/j.issn.0367-6234.2013.04.010 |
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| 升流微生物催化电解反应器强化偶氮染料脱色 |
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彭晶1,2, 郭宇琦2,3, 崔丹2,3, 王爱杰2,3
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(1. 哈尔滨工业大学 建筑设计研究院, 150090 哈尔滨; 2. 哈尔滨工业大学 市政环境工程学院, 150090 哈尔滨; 3. 哈尔滨工业大学 城市水资源与水环境国家重点实验室, 150090 哈尔滨)
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| 摘要: |
| 针对传统偶氮染料处理方法效率低的缺点,利用新型升流式微生物催化电解反应器(UBER)强化水中偶氮染料茜素黄R(AYR)还原脱色．反应器采用上升流、连续供水的运行方式,在较短水力停留时间4 h条件下,脱色率可达82.1％,脱色速率达1.74 mol·m-3·d-1,出水色度80倍．茜素黄R的脱色主要发生在UBER的阴极区,是电化学反应和电极微生物生物反应的共同结果,生物阳极也有一定的脱色能力．AYR最终生成两种稳定产物对苯二胺和5-氨基水杨酸,反应过程中无硝基中间产物的积累． |
| 关键词: 微生物催化电解 升流式微生物催化电解反应器 偶氮染料 茜素黄R 脱色 |
| DOI：10.11918/j.issn.0367-6234.2013.04.010 |
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| 基金项目:国家自然科学基金资助项目(51078100). |
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| Azo dye decolorization in an up-flow biocatalyzed electrolysis reactor |
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PENG Jing1, GUO Yuqi2, CUI Dan2, WANG Aijie2
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(1. The Architecture Design and Research Institute, Harbin Institute of Technology, 150090 Harbin, China;2. School of Municipal and Environmental Engineering, Harbin Institute of Technology, 150090 Harbin, China;3. State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, 150090 Harbin, China)
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| Abstract: |
| Due to the low efficiency of traditional azo dye treatment process, in this study a novel up-flow biocatalyzed electrolysis reactor was used for azo dye alizarin yellow R (AYR) decolorization. The reactor operated in an up-flow, continuous flow mode, and the results showed that the decolorization efficiency was 82.1％ and the decolorization rate was 1.74 mol·m-3·d-1 at HRT of 4 h. The chrominance of the effluent was as low as 80. AYR was mainly discolored via electrochemical reaction in the cathode zone of UBER. The bio-anode also made some contribution to the decolorization. Two stable products p-phenylenediamine and 5-aminosalicylic acid were produced finally without accumulation of nitro intermediates. |
| Key words: biocatalyzed electrolysis up-flow biocatalyzed electrolysis reactor(UBER) azo dye alizarin yellow R decolorization
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