Degradation performance of azo dye wastewater by Fe3O4 nanoparticles-enhanced anaerobic activated sludge

doi:10.11894/iwt.2018-1110

Industrial Water Treatment ›› 2019, Vol. 39 ›› Issue (12): 41-44. doi: 10.11894/iwt.2018-1110

• Research and Experiment • Previous Articles Next Articles

Degradation performance of azo dye wastewater by Fe₃O₄ nanoparticles-enhanced anaerobic activated sludge

Haifeng Zhuang(),Haojie Tang,Shengdao Shan,Zhengrong Mao

Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province, Zhejiang University of Science and Technology, Hangzhou 310023, China

Received:2019-11-13 Online:2019-12-20 Published:2019-12-21
Supported by:
浙江省自然科学基金(LQ17E080008);国家自然科学基金项目(51708505)

纳米Fe₃O₄强化厌氧活性污泥降解偶氮染料废水

庄海峰(),唐浩杰,单胜道,毛正荣

浙江科技学院, 浙江省废弃生物质循环利用与生态处理技术重点实验室, 浙江杭州 310023

作者简介:庄海峰(1984-),博士,副研究员。E-mail:zhuanghai-feng1984@163.com
基金资助:
浙江省自然科学基金(LQ17E080008);国家自然科学基金项目(51708505)

Abstract

Abstract:

Fe₃O₄ nanoparticles are dosed into UASB to enhance the anaerobic activated sludge degradation of azo dye wastewater. The results show that with the presence of Fe₃O₄ nanoparticles, removal rates of COD and chroma increase by 61.9% and 10.1%, the production rate of methane improves by 68.1%. The results indicate Fe₃O₄ nanoparticle plays a significant role in enhancing the degradation performance of wastewater. Meanwhile, Fe₃O₄ nanoparticles are beneficial to improve the conductivity, extracellular polymeric substances(EPS) and coenzyme F₄₂₀ productions of anaerobic sludge, which promote sludge stability and efficiency. Therefore, it provides an excellent practical application prospect.

Key words: azo dye wastewater, anaerobic activated sludge, Fe₃O₄ nanoparticles, enhancement

摘要：

将纳米Fe₃O₄投加至上流式厌氧污泥床反应器中，强化厌氧活性污泥降解偶氮染料废水的性能。结果表明，相比于未投加反应器，纳米Fe₃O₄能显著提高厌氧活性污泥对偶氮染料废水的降解性能，COD去除率、色度去除率及产甲烷量分别提高了61.9%、10.1%和68.1%。同时，纳米Fe₃O₄增加了厌氧活性污泥的EPS含量，有利于酶F₄₂₀产生，提升了污泥导电性，有利于活性污泥的稳定性和高效性，具有良好的实际应用前景。

关键词: 偶氮染料废水, 厌氧活性污泥, 纳米Fe₃O₄, 强化

CLC Number:

X703

Haifeng Zhuang,Haojie Tang,Shengdao Shan,Zhengrong Mao. Degradation performance of azo dye wastewater by Fe₃O₄ nanoparticles-enhanced anaerobic activated sludge[J]. Industrial Water Treatment, 2019, 39(12): 41-44.

庄海峰,唐浩杰,单胜道,毛正荣. 纳米Fe₃O₄强化厌氧活性污泥降解偶氮染料废水[J]. 工业水处理, 2019, 39(12): 41-44.

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Figures/Tables 6

References 14

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